Processes can only alter their own security attributes via
/proc/pid/attr nodes. This is presently enforced by each individual
security module and is also imposed by the Linux credentials
implementation, which only allows a task to alter its own credentials.
Move the check enforcing this restriction from the individual
security modules to proc_pid_attr_write() before calling the security hook,
and drop the unnecessary task argument to the security hook since it can
only ever be the current task.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sorayukii <sorayukii69@gmail.com>
Stephen Smalleyauthored and Sorayukiicommited 2026-05-15 18:02:34 +07:00
Add a mechanism to allow LSMs to make a policy decision around whether
kernel functionality that would allow tampering with or examining the
runtime state of the kernel should be permitted.
Change-Id: Ie70dc489691e2f8413fe593c633a00e6e97bd63a
Signed-off-by: Matthew Garrett <mjg59@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Sorayukii <sorayukii69@gmail.com>
Matthew Garrettauthored and Sorayukiicommited 2026-05-15 17:59:06 +07:00
commit f1bb47a31dff6d4b34fb14e99850860ee74bb003 upstream.
Some ioctl commands do not require ioctl permission, but are routed to
other permissions such as FILE_GETATTR or FILE_SETATTR. This routing is
done by comparing the ioctl cmd to a set of 64-bit flags (FS_IOC_*).
However, if a 32-bit process is running on a 64-bit kernel, it emits
32-bit flags (FS_IOC32_*) for certain ioctl operations. These flags are
being checked erroneously, which leads to these ioctl operations being
routed to the ioctl permission, rather than the correct file
permissions.
This was also noted in a RED-PEN finding from a while back -
"/* RED-PEN how should LSM module know it's handling 32bit? */".
This patch introduces a new hook, security_file_ioctl_compat(), that is
called from the compat ioctl syscall. All current LSMs have been changed
to support this hook.
Reviewing the three places where we are currently using
security_file_ioctl(), it appears that only SELinux needs a dedicated
compat change; TOMOYO and SMACK appear to be functional without any
change.
Cc: stable@vger.kernel.org
Fixes: 0b24dcb7f2 ("Revert "selinux: simplify ioctl checking"")
Signed-off-by: Alfred Piccioni <alpic@google.com>
Reviewed-by: Stephen Smalley <stephen.smalley.work@gmail.com>
[PM: subject tweak, line length fixes, and alignment corrections]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit f8f51085b4be6132762ce0d8940071ccdcce2504)
[vegard: fix conflict due to missing commit
df0ce17331e2501dbffc060041dfc6c5f85227b5 ("security: convert security
hooks to use hlist")]
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Sorayukii <sorayukii69@gmail.com>
Alfred Piccioniauthored and Sorayukiicommited 2026-05-15 17:59:05 +07:00
In current mainline, the degree of access to perf_event_open(2) system
call depends on the perf_event_paranoid sysctl. This has a number of
limitations:
1. The sysctl is only a single value. Many types of accesses are controlled
based on the single value thus making the control very limited and
coarse grained.
2. The sysctl is global, so if the sysctl is changed, then that means
all processes get access to perf_event_open(2) opening the door to
security issues.
This patch adds LSM and SELinux access checking which will be used in
Android to access perf_event_open(2) for the purposes of attaching BPF
programs to tracepoints, perf profiling and other operations from
userspace. These operations are intended for production systems.
5 new LSM hooks are added:
1. perf_event_open: This controls access during the perf_event_open(2)
syscall itself. The hook is called from all the places that the
perf_event_paranoid sysctl is checked to keep it consistent with the
systctl. The hook gets passed a 'type' argument which controls CPU,
kernel and tracepoint accesses (in this context, CPU, kernel and
tracepoint have the same semantics as the perf_event_paranoid sysctl).
Additionally, I added an 'open' type which is similar to
perf_event_paranoid sysctl == 3 patch carried in Android and several other
distros but was rejected in mainline [1] in 2016.
2. perf_event_alloc: This allocates a new security object for the event
which stores the current SID within the event. It will be useful when
the perf event's FD is passed through IPC to another process which may
try to read the FD. Appropriate security checks will limit access.
3. perf_event_free: Called when the event is closed.
4. perf_event_read: Called from the read(2) and mmap(2) syscalls for the event.
5. perf_event_write: Called from the ioctl(2) syscalls for the event.
[1] https://lwn.net/Articles/696240/
Since Peter had suggest LSM hooks in 2016 [1], I am adding his
Suggested-by tag below.
To use this patch, we set the perf_event_paranoid sysctl to -1 and then
apply selinux checking as appropriate (default deny everything, and then
add policy rules to give access to domains that need it). In the future
we can remove the perf_event_paranoid sysctl altogether.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Co-developed-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: James Morris <jmorris@namei.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: rostedt@goodmis.org
Cc: Yonghong Song <yhs@fb.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: jeffv@google.com
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: primiano@google.com
Cc: Song Liu <songliubraving@fb.com>
Cc: rsavitski@google.com
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Matthew Garrett <matthewgarrett@google.com>
Link: https://lkml.kernel.org/r/20191014170308.70668-1-joel@joelfernandes.org
(cherry picked from commit da97e18458fb42d7c00fac5fd1c56a3896ec666e)
[ Ryan Savitski: adapted for older codebase, and folded in upstream
ae79d5588a04 (perf/core: Fix !CONFIG_PERF_EVENTS build warnings and
failures). ]
Bug: 137092007
Change-Id: I68ee3dba85c8d64e24f28a0fbc8db2aed3b6f77b
Signed-off-by: Ryan Savitski <rsavitski@google.com>
Signed-off-by: Rapherion Rollerscaperers <rapherion@raphielgang.org>
Signed-off-by: Chenyang Zhong <zhongcy95@gmail.com>
Signed-off-by: Sorayukii <sorayukii69@gmail.com>
Joel Fernandes (Google)authored and Sorayukiicommited 2026-05-15 17:59:05 +07:00
* common/android-4.9-q:
Linux 4.9.327
kprobes: don't call disarm_kprobe() for disabled kprobes
mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse
netfilter: conntrack: NF_CONNTRACK_PROCFS should no longer default to y
s390/hypfs: avoid error message under KVM
arm64: map FDT as RW for early_init_dt_scan()
ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead
fbdev: fb_pm2fb: Avoid potential divide by zero error
HID: hidraw: fix memory leak in hidraw_release()
media: pvrusb2: fix memory leak in pvr_probe
Bluetooth: L2CAP: Fix build errors in some archs
kbuild: Fix include path in scripts/Makefile.modpost
x86/bugs: Add "unknown" reporting for MMIO Stale Data
x86/cpu: Add Tiger Lake to Intel family
s390/mm: do not trigger write fault when vma does not allow VM_WRITE
mm: Force TLB flush for PFNMAP mappings before unlink_file_vma()
mm/hugetlb: fix hugetlb not supporting softdirty tracking
asm-generic: sections: refactor memory_intersects
loop: Check for overflow while configuring loop
btrfs: check if root is readonly while setting security xattr
ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounter
net: Fix a data-race around sysctl_somaxconn.
net: Fix a data-race around sysctl_net_busy_read.
net: Fix a data-race around sysctl_net_busy_poll.
net: Fix a data-race around sysctl_tstamp_allow_data.
ratelimit: Fix data-races in ___ratelimit().
netfilter: nft_payload: report ERANGE for too long offset and length
bonding: 802.3ad: fix no transmission of LACPDUs
rose: check NULL rose_loopback_neigh->loopback
af_key: Do not call xfrm_probe_algs in parallel
xfrm: fix refcount leak in __xfrm_policy_check()
parisc: Fix exception handler for fldw and fstw instructions
Linux 4.9.326
MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0
video: fbdev: i740fb: Check the argument of i740_calc_vclk()
powerpc/64: Init jump labels before parse_early_param()
ALSA: timer: Use deferred fasync helper
ALSA: core: Add async signal helpers
mips: cavium-octeon: Fix missing of_node_put() in octeon2_usb_clocks_start
vfio: Clear the caps->buf to NULL after free
tty: serial: Fix refcount leak bug in ucc_uart.c
ext4: avoid resizing to a partial cluster size
ext4: avoid remove directory when directory is corrupted
drivers:md:fix a potential use-after-free bug
cxl: Fix a memory leak in an error handling path
gadgetfs: ep_io - wait until IRQ finishes
usb: host: ohci-ppc-of: Fix refcount leak bug
irqchip/tegra: Fix overflow implicit truncation warnings
fec: Fix timer capture timing in `fec_ptp_enable_pps()`
netfilter: nf_tables: really skip inactive sets when allocating name
nios2: add force_successful_syscall_return()
nios2: restarts apply only to the first sigframe we build...
nios2: fix syscall restart checks
nios2: traced syscall does need to check the syscall number
nios2: don't leave NULLs in sys_call_table[]
nios2: page fault et.al. are *not* restartable syscalls...
atm: idt77252: fix use-after-free bugs caused by tst_timer
xen/xenbus: fix return type in xenbus_file_read()
vsock: Fix memory leak in vsock_connect()
pinctrl: qcom: msm8916: Allow CAMSS GP clocks to be muxed
pinctrl: nomadik: Fix refcount leak in nmk_pinctrl_dt_subnode_to_map
SUNRPC: Reinitialise the backchannel request buffers before reuse
NFSv4.1: RECLAIM_COMPLETE must handle EACCES
can: ems_usb: fix clang's -Wunaligned-access warning
btrfs: fix lost error handling when looking up extended ref on log replay
ata: libata-eh: Add missing command name
rds: add missing barrier to release_refill
ALSA: info: Fix llseek return value when using callback
net_sched: cls_route: disallow handle of 0
net/9p: Initialize the iounit field during fid creation
nios2: time: Read timer in get_cycles only if initialized
Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression
Revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP"
scsi: sg: Allow waiting for commands to complete on removed device
tcp: fix over estimation in sk_forced_mem_schedule()
btrfs: reject log replay if there is unsupported RO compat flag
net_sched: cls_route: remove from list when handle is 0
dm raid: fix address sanitizer warning in raid_status
ext4: correct max_inline_xattr_value_size computing
ext4: fix extent status tree race in writeback error recovery path
ext4: update s_overhead_clusters in the superblock during an on-line resize
ext4: fix use-after-free in ext4_xattr_set_entry
ext4: make sure ext4_append() always allocates new block
ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h
spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
x86/olpc: fix 'logical not is only applied to the left hand side'
scsi: zfcp: Fix missing auto port scan and thus missing target ports
netfilter: nf_tables: fix null deref due to zeroed list head
USB: HCD: Fix URB giveback issue in tasklet function
MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
powerpc/powernv: Avoid crashing if rng is NULL
powerpc/fsl-pci: Fix Class Code of PCIe Root Port
PCI: Add defines for normal and subtractive PCI bridges
ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()
md-raid10: fix KASAN warning
fuse: limit nsec
bpf: fix overflow in prog accounting
drm/nouveau: fix another off-by-one in nvbios_addr
parisc: Fix device names in /proc/iomem
usbnet: Fix linkwatch use-after-free on disconnect
vfs: Check the truncate maximum size in inode_newsize_ok()
ALSA: hda/cirrus - support for iMac 12,1 model
ALSA: hda/conexant: Add quirk for LENOVO 20149 Notebook model
KVM: x86: Mark TSS busy during LTR emulation _after_ all fault checks
KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0
add barriers to buffer_uptodate and set_buffer_uptodate
ALSA: bcd2000: Fix a UAF bug on the error path of probing
macintosh/adb: fix oob read in do_adb_query() function
random: only call boot_init_stack_canary() once
ACPI: video: Shortening quirk list by identifying Clevo by board_name only
ACPI: video: Force backlight native for some TongFang devices
init/main.c: extract early boot entropy from the passed cmdline
init: move stack canary initialization after setup_arch
init/main: properly align the multi-line comment
init/main: Fix double "the" in comment
include/uapi/linux/swab.h: fix userspace breakage, use __BITS_PER_LONG for swap
selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling
selinux: fix error initialization in inode_doinit_with_dentry()
selinux: Convert isec->lock into a spinlock
selinux: Clean up initialization of isec->sclass
proc: Pass file mode to proc_pid_make_inode
selinux: Minor cleanups
ion: Make user_ion_handle_put_nolock() a void function
mt7601u: add USB device ID for some versions of XiaoDu WiFi Dongle.
ARM: crypto: comment out gcc warning that breaks clang builds
netfilter: nf_queue: do not allow packet truncation below transport header offset
net: sungem_phy: Add of_node_put() for reference returned by of_get_parent()
net: ping6: Fix memleak in ipv6_renew_options().
scsi: ufs: host: Hold reference returned by of_parse_phandle()
ntfs: fix use-after-free in ntfs_ucsncmp()
Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put
FROMLIST: binder: fix UAF of ref->proc caused by race condition
Linux 4.9.325
net: usb: ax88179_178a needs FLAG_SEND_ZLP
tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
tty: drop tty_schedule_flip()
tty: the rest, stop using tty_schedule_flip()
tty: drivers/tty/, stop using tty_schedule_flip()
ALSA: memalloc: Align buffer allocations in page size
bpf: Make sure mac_header was set before using it
mm/mempolicy: fix uninit-value in mpol_rebind_policy()
Revert "Revert "char/random: silence a lockdep splat with printk()""
be2net: Fix buffer overflow in be_get_module_eeprom
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
igmp: Fix a data-race around sysctl_igmp_max_memberships.
igmp: Fix data-races around sysctl_igmp_llm_reports.
i2c: cadence: Change large transfer count reset logic to be unconditional
tcp: Fix a data-race around sysctl_tcp_probe_threshold.
tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept.
ip: Fix a data-race around sysctl_fwmark_reflect.
perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()
power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
xfrm: xfrm_policy: fix a possible double xfrm_pols_put() in xfrm_bundle_lookup()
misc: rtsx_usb: set return value in rsp_buf alloc err path
misc: rtsx_usb: use separate command and response buffers
misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
xen/gntdev: Ignore failure to unmap INVALID_GRANT_HANDLE
security,selinux,smack: kill security_task_wait hook
FROMGIT: arm64: fix oops in concurrently setting insn_emulation sysctls
Linux 4.9.324
can: m_can: m_can_tx_handler(): fix use after free of skb
mm: invalidate hwpoison page cache page in fault path
serial: 8250: fix return error code in serial8250_request_std_resource()
tty: serial: samsung_tty: set dma burst_size to 1
usb: dwc3: gadget: Fix event pending check
USB: serial: ftdi_sio: add Belimo device ids
signal handling: don't use BUG_ON() for debugging
x86: Clear .brk area at early boot
ASoC: wm5110: Fix DRE control
ASoC: ops: Fix off by one in range control validation
NFC: nxp-nci: don't print header length mismatch on i2c error
net: tipc: fix possible refcount leak in tipc_sk_create()
cpufreq: pmac32-cpufreq: Fix refcount leak bug
virtio_mmio: Restore guest page size on resume
virtio_mmio: Add missing PM calls to freeze/restore
sfc: fix kernel panic when creating VF
sfc: fix use after free when disabling sriov
ipv4: Fix data-races around sysctl_ip_dynaddr.
icmp: Fix data-races around sysctl.
cipso: Fix data-races around sysctl.
ARM: 9209/1: Spectre-BHB: avoid pr_info() every time a CPU comes out of idle
net: dsa: bcm_sf2: force pause link settings
nilfs2: fix incorrect masking of permission flags for symlinks
ARM: 9213/1: Print message about disabled Spectre workarounds only once
net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer
xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue
ALSA: hda - Add fixup for Dell Latitidue E5430
arm64: entry: Restore tramp_map_kernel ISB
Linux 4.9.323
dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate
dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
ida: don't use BUG_ON() for debugging
i2c: cadence: Unregister the clk notifier in error path
pinctrl: sunxi: a83t: Fix NAND function name for some pins
xfs: remove incorrect ASSERT in xfs_rename
video: of_display_timing.h: include errno.h
iommu/vt-d: Fix PCI bus rescan device hot add
net: rose: fix UAF bug caused by rose_t0timer_expiry
usbnet: fix memory leak in error case
can: gs_usb: gs_usb_open/close(): fix memory leak
can: grcan: grcan_probe(): remove extra of_node_get()
mm/slub: add missing TID updates on slab deactivation
Linux 4.9.322
net: usb: qmi_wwan: add Telit 0x1070 composition
net: usb: qmi_wwan: add Telit 0x1060 composition
net: usb: qmi_wwan: add Telit LE910Cx 0x1230 composition
net: usb: qmi_wwan: add Telit 0x1260 and 0x1261 compositions
qmi_wwan: Added support for Telit LN940 series
xen/arm: Fix race in RB-tree based P2M accounting
xen/blkfront: force data bouncing when backend is untrusted
xen/netfront: force data bouncing when backend is untrusted
xen/netfront: fix leaking data in shared pages
xen/blkfront: fix leaking data in shared pages
net: Rename and export copy_skb_header
ipv6/sit: fix ipip6_tunnel_get_prl return value
sit: use min
hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails
xen/gntdev: Avoid blocking in unmap_grant_pages()
NFC: nxp-nci: Don't issue a zero length i2c_master_read()
nfc: nfcmrvl: Fix irq_of_parse_and_map() return value
net: bonding: fix use-after-free after 802.3ad slave unbind
net: bonding: fix possible NULL deref in rlb code
netfilter: nft_dynset: restore set element counter when failing to update
caif_virtio: fix race between virtio_device_ready() and ndo_open()
powerpc/powernv: wire up rng during setup_arch
usbnet: fix memory allocation in helpers
usbnet: make sure no NULL pointer is passed through
net: usb: ax88179_178a: Fix packet receiving
net: rose: fix UAF bugs caused by timer handler
SUNRPC: Fix READ_PLUS crasher
dm raid: fix KASAN warning in raid5_add_disks
Conflicts:
arch/arm64/kernel/setup.c
drivers/staging/android/ion/ion-ioctl.c
drivers/usb/dwc3/gadget.c
security/selinux/include/objsec.h
Change-Id: I22b34d087ac0e3c3c2ad8c90f2a590e54ed3a6e8
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Merge 4.9.325 into android-4.9-q
Changes in 4.9.325
security,selinux,smack: kill security_task_wait hook
xen/gntdev: Ignore failure to unmap INVALID_GRANT_HANDLE
misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
misc: rtsx_usb: use separate command and response buffers
misc: rtsx_usb: set return value in rsp_buf alloc err path
xfrm: xfrm_policy: fix a possible double xfrm_pols_put() in xfrm_bundle_lookup()
power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()
ip: Fix a data-race around sysctl_fwmark_reflect.
tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept.
tcp: Fix a data-race around sysctl_tcp_probe_threshold.
i2c: cadence: Change large transfer count reset logic to be unconditional
igmp: Fix data-races around sysctl_igmp_llm_reports.
igmp: Fix a data-race around sysctl_igmp_max_memberships.
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
be2net: Fix buffer overflow in be_get_module_eeprom
Revert "Revert "char/random: silence a lockdep splat with printk()""
mm/mempolicy: fix uninit-value in mpol_rebind_policy()
bpf: Make sure mac_header was set before using it
ALSA: memalloc: Align buffer allocations in page size
tty: drivers/tty/, stop using tty_schedule_flip()
tty: the rest, stop using tty_schedule_flip()
tty: drop tty_schedule_flip()
tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
net: usb: ax88179_178a needs FLAG_SEND_ZLP
Linux 4.9.325
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia0b4189557d82a2402819decbcf4eb3c7a204d86
commit 3a2f5a59a695a73e0cde9a61e0feae5fa730e936 upstream.
As reported by yangshukui, a permission denial from security_task_wait()
can lead to a soft lockup in zap_pid_ns_processes() since it only expects
sys_wait4() to return 0 or -ECHILD. Further, security_task_wait() can
in general lead to zombies; in the absence of some way to automatically
reparent a child process upon a denial, the hook is not useful. Remove
the security hook and its implementations in SELinux and Smack. Smack
already removed its check from its hook.
Reported-by: yangshukui <yangshukui@huawei.com>
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Alexander Grund <theflamefire89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stephen Smalleyauthored and Greg Kroah-Hartmancommited 2022-07-29 17:05:44 +02:00
* common/android-4.9-q:
Linux 4.9.294
xen/netback: don't queue unlimited number of packages
xen/netback: fix rx queue stall detection
xen/console: harden hvc_xen against event channel storms
xen/netfront: harden netfront against event channel storms
xen/blkfront: harden blkfront against event channel storms
Input: touchscreen - avoid bitwise vs logical OR warning
mwifiex: Remove unnecessary braces from HostCmd_SET_SEQ_NO_BSS_INFO
ARM: 8805/2: remove unneeded naked function usage
net: lan78xx: Avoid unnecessary self assignment
scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select()
fuse: annotate lock in fuse_reverse_inval_entry()
firmware: arm_scpi: Fix string overflow in SCPI genpd driver
net: systemport: Add global locking for descriptor lifecycle
timekeeping: Really make sure wall_to_monotonic isn't positive
USB: serial: option: add Telit FN990 compositions
PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error
USB: gadget: bRequestType is a bitfield, not a enum
ixgbe: set X550 MDIO speed before talking to PHY
igbvf: fix double free in `igbvf_probe`
soc/tegra: fuse: Fix bitwise vs. logical OR warning
nfsd: fix use-after-free due to delegation race
dm btree remove: fix use after free in rebalance_children()
recordmcount.pl: look for jgnop instruction as well as bcrl on s390
mac80211: send ADDBA requests using the tid/queue of the aggregation session
hwmon: (dell-smm) Fix warning on /proc/i8k creation error
tracing: Fix a kmemleak false positive in tracing_map
net: netlink: af_netlink: Prevent empty skb by adding a check on len.
i2c: rk3x: Handle a spurious start completion interrupt flag
parisc/agp: Annotate parisc agp init functions with __init
net/mlx4_en: Update reported link modes for 1/10G
nfc: fix segfault in nfc_genl_dump_devices_done
FROMGIT: USB: gadget: bRequestType is a bitfield, not a enum
Linux 4.9.293
irqchip: nvic: Fix offset for Interrupt Priority Offsets
irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL
irqchip/armada-370-xp: Fix support for Multi-MSI interrupts
irqchip/armada-370-xp: Fix return value of armada_370_xp_msi_alloc()
iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove
iio: itg3200: Call iio_trigger_notify_done() on error
iio: kxsd9: Don't return error code in trigger handler
iio: ltr501: Don't return error code in trigger handler
iio: mma8452: Fix trigger reference couting
iio: stk3310: Don't return error code in interrupt handler
usb: core: config: using bit mask instead of individual bits
usb: core: config: fix validation of wMaxPacketValue entries
USB: gadget: zero allocate endpoint 0 buffers
USB: gadget: detect too-big endpoint 0 requests
net/qla3xxx: fix an error code in ql_adapter_up()
net, neigh: clear whole pneigh_entry at alloc time
net: fec: only clear interrupt of handling queue in fec_enet_rx_queue()
net: altera: set a couple error code in probe()
net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero
block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
tracefs: Set all files to the same group ownership as the mount option
signalfd: use wake_up_pollfree()
binder: use wake_up_pollfree()
wait: add wake_up_pollfree()
libata: add horkage for ASMedia 1092
can: pch_can: pch_can_rx_normal: fix use after free
tracefs: Have new files inherit the ownership of their parent
ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*()
ALSA: pcm: oss: Limit the period size to 16MB
ALSA: pcm: oss: Fix negative period/buffer sizes
ALSA: ctl: Fix copy of updated id with element read/write
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
IB/hfi1: Correct guard on eager buffer deallocation
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
can: sja1000: fix use after free in ems_pcmcia_add_card()
HID: check for valid USB device for many HID drivers
HID: wacom: fix problems when device is not a valid USB device
HID: add USB_HID dependancy on some USB HID drivers
HID: add USB_HID dependancy to hid-chicony
HID: add USB_HID dependancy to hid-prodikeys
HID: add hid_is_usb() function to make it simpler for USB detection
HID: introduce hid_is_using_ll_driver
UPSTREAM: USB: gadget: zero allocate endpoint 0 buffers
UPSTREAM: USB: gadget: detect too-big endpoint 0 requests
Linux 4.9.292
serial: core: fix transmit-buffer reset and memleak
serial: pl011: Add ACPI SBSA UART match id
tty: serial: msm_serial: Deactivate RX DMA for polling support
vgacon: Propagate console boot parameters before calling `vc_resize'
parisc: Fix "make install" on newer debian releases
net/rds: correct socket tunable error in rds_tcp_tune()
siphash: use _unaligned version by default
net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
natsemi: xtensa: fix section mismatch warnings
fget: check that the fd still exists after getting a ref to it
fs: add fget_many() and fput_many()
sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
kprobes: Limit max data_size of the kretprobe instances
vrf: Reset IPCB/IP6CB when processing outbound pkts in vrf dev xmit
net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
scsi: iscsi: Unblock session then wake up error handler
thermal: core: Reset previous low and high trip during thermal zone init
s390/setup: avoid using memblock_enforce_memory_limit
platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
net: return correct error code
hugetlb: take PMD sharing into account when flushing tlb/caches
NFSv42: Fix pagecache invalidation after COPY/CLONE
shm: extend forced shm destroy to support objects from several IPC nses
tty: hvc: replace BUG_ON() with negative return value
xen/netfront: don't trust the backend response data blindly
xen/netfront: disentangle tx_skb_freelist
xen/netfront: don't read data from request on the ring page
xen/netfront: read response from backend only once
xen/blkfront: don't trust the backend response data blindly
xen/blkfront: don't take local copy of a request from the ring page
xen/blkfront: read response from backend only once
xen: sync include/xen/interface/io/ring.h with Xen's newest version
fuse: release pipe buf after last use
NFC: add NCI_UNREG flag to eliminate the race
proc/vmcore: fix clearing user buffer by properly using clear_user()
vhost/vsock: fix incorrect used length reported to the guest
hugetlbfs: flush TLBs correctly after huge_pmd_unshare
tracing: Check pid filtering when creating events
tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows
PM: hibernate: use correct mode for swsusp_close()
drm/vc4: fix error code in vc4_create_object()
scsi: mpt3sas: Fix kernel panic during drive powercycle test
ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE
NFSv42: Don't fail clone() unless the OP_CLONE operation failed
net: ieee802154: handle iftypes as u32
ASoC: topology: Add missing rwsem around snd_ctl_remove() calls
ARM: dts: BCM5301X: Add interrupt properties to GPIO node
tracing: Fix pid filtering when triggers are attached
xen: detect uninitialized xenbus in xenbus_init
xen: don't continue xenstore initialization in case of errors
fuse: fix page stealing
staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
ALSA: ctxfi: Fix out-of-range access
binder: fix test regression due to sender_euid change
usb: hub: Fix locking issues with address0_mutex
usb: hub: Fix usb enumeration issue due to address0 race
USB: serial: option: add Fibocom FM101-GL variants
USB: serial: option: add Telit LE910S1 0x9200 composition
staging: ion: Prevent incorrect reference counting behavour
Linux 4.9.291
soc/tegra: pmc: Fix imbalanced clock disabling in error code path
usb: max-3421: Use driver data instead of maintaining a list of bound devices
ASoC: DAPM: Cover regression by kctl change notification fix
batman-adv: Don't always reallocate the fragmentation skb head
batman-adv: Reserve needed_*room for fragments
batman-adv: Consider fragmentation for needed_headroom
batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh
batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN
batman-adv: Fix own OGM check in aggregated OGMs
batman-adv: Keep fragments equally sized
drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors
drm/udl: fix control-message timeout
cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
parisc/sticon: fix reverse colors
btrfs: fix memory ordering between normal and ordered work functions
mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag
hexagon: export raw I/O routines for modules
tun: fix bonding active backup with arp monitoring
perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server
perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake Server
NFC: reorder the logic in nfc_{un,}register_device
NFC: reorganize the functions in nci_request
platform/x86: hp_accel: Fix an error handling path in 'lis3lv02d_probe()'
mips: bcm63xx: add support for clk_get_parent()
iavf: Fix for the false positive ASQ/ARQ errors while issuing VF reset
net: bnx2x: fix variable dereferenced before check
sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
sh: define __BIG_ENDIAN for math-emu
sh: fix kconfig unmet dependency warning for FRAME_POINTER
maple: fix wrong return value of maple_bus_init().
sh: check return code of request_irq
powerpc/dcr: Use cmplwi instead of 3-argument cmpli
ALSA: gus: fix null pointer dereference on pointer block
powerpc/5200: dts: fix memory node unit name
scsi: target: Fix alua_tg_pt_gps_count tracking
scsi: target: Fix ordered tag handling
MIPS: sni: Fix the build
tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc
usb: host: ohci-tmio: check return value after calling platform_get_resource()
ARM: dts: omap: fix gpmc,mux-add-data type
scsi: advansys: Fix kernel pointer leak
usb: musb: tusb6010: check return value after calling platform_get_resource()
scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()
PCI/MSI: Destroy sysfs before freeing entries
parisc/entry: fix trace test in syscall exit path
net: mdio-mux: fix unbalanced put_device
PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
mm, oom: do not trigger out_of_memory from the #PF
mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
powerpc/bpf: Fix BPF_SUB when imm == 0x80000000
powerpc/bpf: Validate branch ranges
ARM: 9156/1: drop cc-option fallbacks for architecture selection
USB: chipidea: fix interrupt deadlock
vsock: prevent unnecessary refcnt inc for nonblocking connect
nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
llc: fix out-of-bound array index in llc_sk_dev_hash()
mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
net: davinci_emac: Fix interrupt pacing disable
xen-pciback: Fix return in pm_ctrl_init()
i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'
scsi: qla2xxx: Turn off target reset during issue_lip
watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
m68k: set a default value for MEMORY_RESERVE
dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result`
netfilter: nfnetlink_queue: fix OOB when mac header was cleared
auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string
dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare()
fs: orangefs: fix error return code of orangefs_revalidate_lookup()
PCI: aardvark: Don't spam about PIO Response Status
drm/plane-helper: fix uninitialized variable reference
pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds
power: supply: bq27xxx: Fix kernel crash on IRQ handler register error
serial: xilinx_uartps: Fix race condition causing stuck TX
RDMA/mlx4: Return missed an error if device doesn't support steering
scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
power: supply: rt5033_battery: Change voltage values to µV
usb: gadget: hid: fix error code in do_config()
serial: 8250_dw: Drop wrong use of ACPI_PTR()
video: fbdev: chipsfb: use memset_io() instead of memset()
memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
soc/tegra: Fix an error handling path in tegra_powergate_power_up()
arm: dts: omap3-gta04a4: accelerometer irq fix
JFS: fix memleak in jfs_mount
MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT
scsi: dc395: Fix error case unwinding
ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
RDMA/rxe: Fix wrong port_cap_flags
crypto: pcrypt - Delay write to padata->info
libertas: Fix possible memory leak in probe and disconnect
libertas_tf: Fix possible memory leak in probe and disconnect
samples/kretprobes: Fix return value if register_kretprobe() failed
irq: mips: avoid nested irq_enter()
s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
phy: micrel: ksz8041nl: do not use power down mode
mwifiex: Send DELBA requests according to spec
platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
mmc: mxs-mmc: disable regulator on error and in the remove function
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
drm/msm: uninitialized variable in msm_gem_import()
ath10k: fix max antenna gain unit
hwmon: Fix possible memleak in __hwmon_device_register()
memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
memstick: avoid out-of-range warning
b43: fix a lower bounds test
b43legacy: fix a lower bounds test
crypto: qat - disregard spurious PFVF interrupts
crypto: qat - detect PFVF collision after ACK
ath9k: Fix potential interrupt storm on queue reset
cpuidle: Fix kobject memory leaks in error paths
media: si470x: Avoid card name truncation
media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()'
media: dvb-usb: fix ununit-value in az6027_rc_query
cgroup: Make rebind_subsystems() disable v2 controllers all at once
parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
parisc: fix warning in flush_tlb_all
spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()
ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
ARM: clang: Do not rely on lr register for stacktrace
smackfs: use __GFP_NOFAIL for smk_cipso_doi()
iwlwifi: mvm: disable RX-diversity in powersave
PM: hibernate: Get block device exclusively in swsusp_check()
mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
tracing/cfi: Fix cmp_entries_* functions signature mismatch
lib/xz: Validate the value before assigning it to an enum variable
lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
memstick: r592: Fix a UAF bug when removing the driver
ACPI: battery: Accept charges over the design capacity as full
ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
tracefs: Have tracefs directories not set OTH permission bits by default
media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
ACPICA: Avoid evaluating methods too early during system resume
ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
media: mceusb: return without resubmitting URB in case of -EPROTO error.
media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
media: uvcvideo: Set capability in s_param
media: netup_unidvb: handle interrupt properly according to the firmware
media: mt9p031: Fix corrupted frame after restarting stream
x86: Increase exception stack sizes
smackfs: Fix use-after-free in netlbl_catmap_walk()
locking/lockdep: Avoid RCU-induced noinstr fail
MIPS: lantiq: dma: reset correct number of channel
MIPS: lantiq: dma: add small delay after reset
platform/x86: wmi: do not fail if disabling fails
Bluetooth: fix use-after-free error in lock_sock_nested()
Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
USB: iowarrior: fix control-message timeouts
USB: serial: keyspan: fix memleak on probe errors
iio: dac: ad5446: Fix ad5622_write() return value
quota: correct error number in free_dqentry()
quota: check block number when reading the block in quota file
PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG
ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
ALSA: mixer: oss: Fix racy access to slots
serial: core: Fix initializing and restoring termios speed
powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found
power: supply: max17042_battery: use VFSOC for capacity when no rsns
power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
signal: Remove the bogus sigkill_pending in ptrace_stop
RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
wcn36xx: handle connection loss indication
mwifiex: Read a PCI register after writing the TX ring write pointer
wcn36xx: Fix HT40 capability for 2Ghz band
evm: mark evm_fixmode as __ro_after_init
rtl8187: fix control-message timeouts
PCI: Mark Atheros QCA6174 to avoid bus reset
ath6kl: fix control-message timeout
ath6kl: fix division by zero in send path
mwifiex: fix division by zero in fw download path
EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
hwmon: (pmbus/lm25066) Add offset coefficients
btrfs: fix lost error handling when replaying directory deletes
vmxnet3: do not stop tx queues after netif_device_detach()
watchdog: Fix OMAP watchdog early handling
spi: spl022: fix Microwire full duplex mode
xen/netfront: stop tx queues during live migration
bpf: Prevent increasing bpf_jit_limit above max
mmc: winbond: don't build on M68K
hyperv/vmbus: include linux/bitops.h
sfc: Don't use netif_info before net_device setup
x86/irq: Ensure PI wakeup handler is unregistered before module unload
ALSA: timer: Unconditionally unlink slave instances, too
ALSA: timer: Fix use-after-free problem
ALSA: synth: missing check for possible NULL after the call to kstrdup
ALSA: line6: fix control and interrupt message timeouts
ALSA: 6fire: fix control and bulk message timeouts
ALSA: ua101: fix division by zero at probe
media: ite-cir: IR receiver stop working after receive overflow
parisc: Fix ptrace check on syscall return
mmc: dw_mmc: Dont wait for DRTO on Write RSP error
ocfs2: fix data corruption on truncate
libata: fix read log timeout value
Input: i8042 - Add quirk for Fujitsu Lifebook T725
Input: elantench - fix misreporting trackpoint coordinates
xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
binder: use cred instead of task for selinux checks
binder: use euid from cred instead of using task
ANDROID: arm64: process: Match upstream formatting when dumping memory areas
FROMGIT: binder: fix test regression due to sender_euid change
BACKPORT: binder: use cred instead of task for selinux checks
UPSTREAM: binder: use euid from cred instead of using task
Linux 4.9.290
rsi: fix control-message timeout
staging: rtl8192u: fix control-message timeouts
staging: r8712u: fix control-message timeout
comedi: vmk80xx: fix bulk and interrupt message timeouts
comedi: vmk80xx: fix bulk-buffer overflow
comedi: vmk80xx: fix transfer-buffer overflows
comedi: ni_usb6501: fix NULL-deref in command paths
comedi: dt9812: fix DMA buffers on stack
isofs: Fix out of bound access for corrupted isofs image
printk/console: Allow to disable console output by using console="" or console=null
usb-storage: Add compatibility quirk flags for iODD 2531/2541
usb: musb: Balance list entry in musb_gadget_queue
usb: gadget: Mark USB_FSL_QE broken on 64-bit
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
IB/qib: Use struct_size() helper
Revert "x86/kvm: fix vcpu-id indexed array sizes"
usb: hso: fix error handling code of hso_create_net_device
net: hso: register netdev later to avoid a race condition
ARM: 9120/1: Revert "amba: make use of -1 IRQs warn"
arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed
mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS
scsi: core: Put LLD module refcnt after SCSI device is released
UPSTREAM: security: selinux: allow per-file labeling for bpffs
Conflicts:
drivers/net/usb/lan78xx.c
drivers/usb/core/hub.c
drivers/usb/gadget/composite.c
Change-Id: Ifd5d502576f0a988fa885b4b1abe7d825cc40094
commit 52f88693378a58094c538662ba652aff0253c4fe upstream.
Since binder was integrated with selinux, it has passed
'struct task_struct' associated with the binder_proc
to represent the source and target of transactions.
The conversion of task to SID was then done in the hook
implementations. It turns out that there are race conditions
which can result in an incorrect security context being used.
Fix by using the 'struct cred' saved during binder_open and pass
it to the selinux subsystem.
Cc: stable@vger.kernel.org # 5.14 (need backport for earlier stables)
Fixes: 79af73079d ("Add security hooks to binder and implement the hooks for SELinux.")
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Todd Kjosauthored and Greg Kroah-Hartmancommited 2021-11-26 11:48:17 +01:00
commit 52f88693378a58094c538662ba652aff0253c4fe upstream.
Since binder was integrated with selinux, it has passed
'struct task_struct' associated with the binder_proc
to represent the source and target of transactions.
The conversion of task to SID was then done in the hook
implementations. It turns out that there are race conditions
which can result in an incorrect security context being used.
Fix by using the 'struct cred' saved during binder_open and pass
it to the selinux subsystem.
Cc: stable@vger.kernel.org # 5.14 (need backport for earlier stables)
Fixes: 79af73079d ("Add security hooks to binder and implement the hooks for SELinux.")
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Change-Id: Id7157515d2b08f11683aeb8ad9b8f1da075d34e7
[ tkjos@ fixed minor conflicts ]
Bug: 200688826
Signed-off-by: Todd Kjos <tkjos@google.com>
HW File Based Encryption (FBE) uses Crypto Engine to
encrypt the user data with unique key for each file.
File name and data both are encrypted with this feature.
- security/pfk: New module to support per file
encryption using CE.
- fs/ext4: changes made to support using crypto engine
to encyrpt the data.
Other changes made to provide support framework for per
file encryption.
Change-Id: I82b05a73b10ad8c26b0e400cdf246c67a8060f0e
Signed-off-by: Neeraj Soni <neersoni@codeaurora.org>
Neeraj Soniauthored and Veerabhadrarao Badiganticommited 2018-05-22 12:58:05 +05:30
Touching linux/bpf.h makes us rebuild a surprisingly large
portion of the kernel. Remove the unnecessary dependency
from security.h, it only needs forward declarations.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from net-next: 1495dc9f0a711a54f8fec849ce7f3a8f585a11e5)
Bug: 30950746
Change-Id: I93d4210845e7e2c748f13e260010b71d91864093
Jakub Kicinskiauthored and Chenbo Fengcommited 2017-11-07 13:01:06 -08:00
Introduce several LSM hooks for the syscalls that will allow the
userspace to access to eBPF object such as eBPF programs and eBPF maps.
The security check is aimed to enforce a per object security protection
for eBPF object so only processes with the right priviliges can
read/write to a specific map or use a specific eBPF program. Besides
that, a general security hook is added before the multiplexer of bpf
syscall to check the cmd and the attribute used for the command. The
actual security module can decide which command need to be checked and
how the cmd should be checked.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added the LIST_HEAD_INIT call for security hooks, it nolonger exist in
uptream code.
(cherry-pick from net-next: afdb09c720b62b8090584c11151d856df330e57d)
Bug: 30950746
Change-Id: Ieb3ac74392f531735fc7c949b83346a5f587a77b
During a new file creation we need to make sure new file is created with the
right label. New file is created in upper/ so effectively file should get
label as if task had created file in upper/.
We switched to mounter's creds for actual file creation. Also if there is a
whiteout present, then file will be created in work/ dir first and then
renamed in upper. In none of the cases file will be labeled as we want it to
be.
This patch introduces a new hook dentry_create_files_as(), which determines
the label/context dentry will get if it had been created by task in upper
and modify passed set of creds appropriately. Caller makes use of these new
creds for file creation.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: fix whitespace issues found with checkpatch.pl]
[PM: changes to use stat->mode in ovl_create_or_link()]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Vivek Goyalauthored and Paul Moorecommited 2016-08-08 20:46:46 -04:00
Provide a security hook which is called when xattrs of a file are being
copied up. This hook is called once for each xattr and LSM can return
0 if the security module wants the xattr to be copied up, 1 if the
security module wants the xattr to be discarded on the copy, -EOPNOTSUPP
if the security module does not handle/manage the xattr, or a -errno
upon an error.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: whitespace cleanup for checkpatch.pl]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Vivek Goyalauthored and Paul Moorecommited 2016-08-08 20:42:13 -04:00
Provide a security hook to label new file correctly when a file is copied
up from lower layer to upper layer of a overlay/union mount.
This hook can prepare a new set of creds which are suitable for new file
creation during copy up. Caller will use new creds to create file and then
revert back to old creds and release new creds.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: whitespace cleanup to appease checkpatch.pl]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Vivek Goyalauthored and Paul Moorecommited 2016-08-08 20:06:53 -04:00
Pull 'struct path' constification update from Al Viro:
"'struct path' is passed by reference to a bunch of Linux security
methods; in theory, there's nothing to stop them from modifying the
damn thing and LSM community being what it is, sooner or later some
enterprising soul is going to decide that it's a good idea.
Let's remove the temptation and constify all of those..."
* 'work.const-path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
constify ima_d_path()
constify security_sb_pivotroot()
constify security_path_chroot()
constify security_path_{link,rename}
apparmor: remove useless checks for NULL ->mnt
constify security_path_{mkdir,mknod,symlink}
constify security_path_{unlink,rmdir}
apparmor: constify common_perm_...()
apparmor: constify aa_path_link()
apparmor: new helper - common_path_perm()
constify chmod_common/security_path_chmod
constify security_sb_mount()
constify chown_common/security_path_chown
tomoyo: constify assorted struct path *
apparmor_path_truncate(): path->mnt is never NULL
constify vfs_truncate()
constify security_path_truncate()
[apparmor] constify struct path * in a bunch of helpers
security_settime() uses a timespec, which is not year 2038 safe
on 32bit systems. Thus this patch introduces the security_settime64()
function with timespec64 type. We also convert the cap_settime() helper
function to use the 64bit types.
This patch then moves security_settime() to the header file as an
inline helper function so that existing users can be iteratively
converted.
None of the existing hooks is using the timespec argument and therefor
the patch is not making any functional changes.
Cc: Serge Hallyn <serge.hallyn@canonical.com>,
Cc: James Morris <james.l.morris@oracle.com>,
Cc: "Serge E. Hallyn" <serge@hallyn.com>,
Cc: Paul Moore <pmoore@redhat.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Kees Cook <keescook@chromium.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
[jstultz: Reworded commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Baolin Wangauthored and John Stultzcommited 2016-04-22 11:48:30 -07:00
Replace copy_module_from_fd() with kernel_read_file_from_fd().
Although none of the upstreamed LSMs define a kernel_module_from_file
hook, IMA is called, based on policy, to prevent unsigned kernel modules
from being loaded by the original kernel module syscall and to
measure/appraise signed kernel modules.
The security function security_kernel_module_from_file() was called prior
to reading a kernel module. Preventing unsigned kernel modules from being
loaded by the original kernel module syscall remains on the pre-read
kernel_read_file() security hook. Instead of reading the kernel module
twice, once for measuring/appraising and again for loading the kernel
module, the signature validation is moved to the kernel_post_read_file()
security hook.
This patch removes the security_kernel_module_from_file() hook and security
call.
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
The kernel_read_file security hook is called prior to reading the file
into memory.
Changelog v4+:
- export security_kernel_read_file()
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Replace the fw_read_file_contents with kernel_file_read_from_path().
Although none of the upstreamed LSMs define a kernel_fw_from_file hook,
IMA is called by the security function to prevent unsigned firmware from
being loaded and to measure/appraise signed firmware, based on policy.
Instead of reading the firmware twice, once for measuring/appraising the
firmware and again for reading the firmware contents into memory, the
kernel_post_read_file() security hook calculates the file hash based on
the in memory file buffer. The firmware is read once.
This patch removes the LSM kernel_fw_from_file() hook and security call.
Changelog v4+:
- revert dropped buf->size assignment - reported by Sergey Senozhatsky
v3:
- remove kernel_fw_from_file hook
- use kernel_file_read_from_path() - requested by Luis
v2:
- reordered and squashed firmware patches
- fix MAX firmware size (Kees Cook)
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
This patch defines a new IMA hook ima_post_read_file() for measuring
and appraising files read by the kernel. The caller loads the file into
memory before calling this function, which calculates the hash followed by
the normal IMA policy based processing.
Changelog v5:
- fail ima_post_read_file() if either file or buf is NULL
v3:
- rename ima_hash_and_process_file() to ima_post_read_file()
v1:
- split patch
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Dmitry Kasatkin <dmitry.kasatkin@huawei.com>
To differentiate between the kernel_read_file() callers, this patch
defines a new enumeration named kernel_read_file_id and includes the
caller identifier as an argument.
Subsequent patches define READING_KEXEC_IMAGE, READING_KEXEC_INITRAMFS,
READING_FIRMWARE, READING_MODULE, and READING_POLICY.
Changelog v3:
- Replace the IMA specific enumeration with a generic one.
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
For a while it was looked down upon to directly read files from Linux.
These days there exists a few mechanisms in the kernel that do just
this though to load a file into a local buffer. There are minor but
important checks differences on each. This patch set is the first
attempt at resolving some of these differences.
This patch introduces a common function for reading files from the kernel
with the corresponding security post-read hook and function.
Changelog v4+:
- export security_kernel_post_read_file() - Fengguang Wu
v3:
- additional bounds checking - Luis
v2:
- To simplify patch review, re-ordered patches
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@suse.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Add a hook to invalidate an inode's security label when the cached
information becomes invalid.
Add the new hook in selinux: set a flag when a security label becomes
invalid.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Andreas Gruenbacherauthored and Paul Moorecommited 2015-12-24 11:09:40 -05:00
Make the inode argument of the inode_getsecid hook non-const so that we
can use it to revalidate invalid security labels.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Andreas Gruenbacherauthored and Paul Moorecommited 2015-12-24 11:09:39 -05:00
Make the inode argument of the inode_getsecurity hook non-const so that
we can use it to revalidate invalid security labels.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Andreas Gruenbacherauthored and Paul Moorecommited 2015-12-24 11:09:39 -05:00
Pull security subsystem updates from James Morris:
"The main change in this kernel is Casey's generalized LSM stacking
work, which removes the hard-coding of Capabilities and Yama stacking,
allowing multiple arbitrary "small" LSMs to be stacked with a default
monolithic module (e.g. SELinux, Smack, AppArmor).
See
https://lwn.net/Articles/636056/
This will allow smaller, simpler LSMs to be incorporated into the
mainline kernel and arbitrarily stacked by users. Also, this is a
useful cleanup of the LSM code in its own right"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
tpm, tpm_crb: fix le64_to_cpu conversions in crb_acpi_add()
vTPM: set virtual device before passing to ibmvtpm_reset_crq
tpm_ibmvtpm: remove unneccessary message level.
ima: update builtin policies
ima: extend "mask" policy matching support
ima: add support for new "euid" policy condition
ima: fix ima_show_template_data_ascii()
Smack: freeing an error pointer in smk_write_revoke_subj()
selinux: fix setting of security labels on NFS
selinux: Remove unused permission definitions
selinux: enable genfscon labeling for sysfs and pstore files
selinux: enable per-file labeling for debugfs files.
selinux: update netlink socket classes
signals: don't abuse __flush_signals() in selinux_bprm_committed_creds()
selinux: Print 'sclass' as string when unrecognized netlink message occurs
Smack: allow multiple labels in onlycap
Smack: fix seq operations in smackfs
ima: pass iint to ima_add_violation()
ima: wrap event related data to the new ima_event_data structure
integrity: add validity checks for 'path' parameter
...
Instead of using a vector of security operations
with explicit, special case stacking of the capability
and yama hooks use lists of hooks with capability and
yama hooks included as appropriate.
The security_operations structure is no longer required.
Instead, there is a union of the function pointers that
allows all the hooks lists to use a common mechanism for
list management while retaining typing. Each module
supplies an array describing the hooks it provides instead
of a sparsely populated security_operations structure.
The description includes the element that gets put on
the hook list, avoiding the issues surrounding individual
element allocation.
The method for registering security modules is changed to
reflect the information available. The method for removing
a module, currently only used by SELinux, has also changed.
It should be generic now, however if there are potential
race conditions based on ordering of hook removal that needs
to be addressed by the calling module.
The security hooks are called from the lists and the first
failure is returned.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Casey Schauflerauthored and James Morriscommited 2015-05-12 15:00:41 +10:00
Remove the large comment describing the content of the
security_operations structure from security.h. This
wasn't done in the previous (2/7) patch because it
would have exceeded the mail list size limits.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Casey Schauflerauthored and James Morriscommited 2015-05-12 15:00:25 +10:00
The security.h header file serves two purposes,
interfaces for users of the security modules and
interfaces for security modules. Users of the
security modules don't need to know about what's
in the security_operations structure, so pull it
out into it's own header, lsm_hooks.h
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Casey Schauflerauthored and James Morriscommited 2015-05-12 15:00:16 +10:00
inode_follow_link now takes an inode and rcu flag as well as the
dentry.
inode is used in preference to d_backing_inode(dentry), particularly
in RCU-walk mode.
selinux_inode_follow_link() gets dentry_has_perm() and
inode_has_perm() open-coded into it so that it can call
avc_has_perm_flags() in way that is safe if LOOKUP_RCU is set.
Calling avc_has_perm_flags() with rcu_read_lock() held means
that when avc_has_perm_noaudit calls avc_compute_av(), the attempt
to rcu_read_unlock() before calling security_compute_av() will not
actually drop the RCU read-lock.
However as security_compute_av() is completely in a read_lock()ed
region, it should be safe with the RCU read-lock held.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
NeilBrownauthored and Al Virocommited 2015-05-11 08:13:11 -04:00
No ->inode_follow_link() methods use the nameidata arg, and
it is about to become private to namei.c.
So remove from all inode_follow_link() functions.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
NeilBrownauthored and Al Virocommited 2015-05-10 22:18:29 -04:00
Pull networking updates from David Miller:
1) Add BQL support to via-rhine, from Tino Reichardt.
2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers
can support hw switch offloading. From Floria Fainelli.
3) Allow 'ip address' commands to initiate multicast group join/leave,
from Madhu Challa.
4) Many ipv4 FIB lookup optimizations from Alexander Duyck.
5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel
Borkmann.
6) Remove the ugly compat support in ARP for ugly layers like ax25,
rose, etc. And use this to clean up the neigh layer, then use it to
implement MPLS support. All from Eric Biederman.
7) Support L3 forwarding offloading in switches, from Scott Feldman.
8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed
up route lookups even further. From Alexander Duyck.
9) Many improvements and bug fixes to the rhashtable implementation,
from Herbert Xu and Thomas Graf. In particular, in the case where
an rhashtable user bulk adds a large number of items into an empty
table, we expand the table much more sanely.
10) Don't make the tcp_metrics hash table per-namespace, from Eric
Biederman.
11) Extend EBPF to access SKB fields, from Alexei Starovoitov.
12) Split out new connection request sockets so that they can be
established in the main hash table. Much less false sharing since
hash lookups go direct to the request sockets instead of having to
go first to the listener then to the request socks hashed
underneath. From Eric Dumazet.
13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk.
14) Support stable privacy address generation for RFC7217 in IPV6. From
Hannes Frederic Sowa.
15) Hash network namespace into IP frag IDs, also from Hannes Frederic
Sowa.
16) Convert PTP get/set methods to use 64-bit time, from Richard
Cochran.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits)
fm10k: Bump driver version to 0.15.2
fm10k: corrected VF multicast update
fm10k: mbx_update_max_size does not drop all oversized messages
fm10k: reset head instead of calling update_max_size
fm10k: renamed mbx_tx_dropped to mbx_tx_oversized
fm10k: update xcast mode before synchronizing multicast addresses
fm10k: start service timer on probe
fm10k: fix function header comment
fm10k: comment next_vf_mbx flow
fm10k: don't handle mailbox events in iov_event path and always process mailbox
fm10k: use separate workqueue for fm10k driver
fm10k: Set PF queues to unlimited bandwidth during virtualization
fm10k: expose tx_timeout_count as an ethtool stat
fm10k: only increment tx_timeout_count in Tx hang path
fm10k: remove extraneous "Reset interface" message
fm10k: separate PF only stats so that VF does not display them
fm10k: use hw->mac.max_queues for stats
fm10k: only show actual queues, not the maximum in hardware
fm10k: allow creation of VLAN on default vid
fm10k: fix unused warnings
...
This reverts commit ca10b9e9a8.
No longer needed after commit eb8895debe
("tcp: tcp_make_synack() should use sock_wmalloc")
When under SYNFLOOD, we build lot of SYNACK and hit false sharing
because of multiple modifications done on sk_listener->sk_wmem_alloc
Since tcp_make_synack() uses sock_wmalloc(), there is no need
to call skb_set_owner_w() again, as this adds two atomic operations.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazetauthored and David S. Millercommited 2015-03-20 21:36:53 -04:00
Add security hooks to the binder and implement the hooks for SELinux.
The security hooks enable security modules such as SELinux to implement
controls over binder IPC. The security hooks include support for
controlling what process can become the binder context manager
(binder_set_context_mgr), controlling the ability of a process
to invoke a binder transaction/IPC to another process (binder_transaction),
controlling the ability of a process to transfer a binder reference to
another process (binder_transfer_binder), and controlling the ability
of a process to transfer an open file to another process (binder_transfer_file).
These hooks have been included in the Android kernel trees since Android 4.3.
(Updated to reflect upstream relocation and changes to the binder driver,
changes to the LSM audit data structures, coding style cleanups, and
to add inline documentation for the hooks).
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Nick Kralevich <nnk@google.com>
Acked-by: Jeffrey Vander Stoep <jeffv@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stephen Smalleyauthored and Greg Kroah-Hartmancommited 2015-01-25 09:17:57 -08:00
Stephen Smalley
authored and
Sorayukii
commited 
Matthew Garrett
authored and
Alfred Piccioni
authored and
Joel Fernandes (Google)
authored and
Michael Bestas
commited 
Greg Kroah-Hartman
commited 
Greg Kroah-Hartman
commited 
Todd Kjos
authored and
Neeraj Soni
authored and
Veerabhadrarao Badiganti
commited 
Jakub Kicinski
authored and
Chenbo Feng
commited 
James Morris
commited 
Mickaël Salaün
authored and
Vivek Goyal
authored and
Paul Moore
commited 
Al Viro
commited 
Linus Torvalds
commited 
Baolin Wang
authored and
John Stultz
commited 
Mimi Zohar
commited 
Andreas Gruenbacher
authored and
Paul Moore
commited 
Jann Horn
authored and
Casey Schaufler
authored and
NeilBrown
authored and
Eric Dumazet
authored and
David S. Miller
commited