Geert Uytterhoeven
3420bd514a
net: dst: Force 4-byte alignment of dst_metrics ...
[ Upstream commit 258a980d1ec23e2c786e9536a7dd260bea74bae6 ]
When storing a pointer to a dst_metrics structure in dst_entry._metrics,
two flags are added in the least significant bits of the pointer value.
Hence this assumes all pointers to dst_metrics structures have at least
4-byte alignment.
However, on m68k, the minimum alignment of 32-bit values is 2 bytes, not
4 bytes. Hence in some kernel builds, dst_default_metrics may be only
2-byte aligned, leading to obscure boot warnings like:
WARNING: CPU: 0 PID: 7 at lib/refcount.c:28 refcount_warn_saturate+0x44/0x9a
refcount_t: underflow; use-after-free.
Modules linked in:
CPU: 0 PID: 7 Comm: ksoftirqd/0 Tainted: G W 5.5.0-rc2-atari-01448-g114a1a1038af891d-dirty #261
Stack from 10835e6c:
10835e6c 0038134f 00023fa6 00394b0f 0000001c 00000009 00321560 00023fea
00394b0f 0000001c 001a70f8 00000009 00000000 10835eb4 00000001 00000000
04208040 0000000a 00394b4a 10835ed4 00043aa8 001a70f8 00394b0f 0000001c
00000009 00394b4a 0026aba8 003215a4 00000003 00000000 0026d5a8 00000001
003215a4 003a4361 003238d6 000001f0 00000000 003215a4 10aa3b00 00025e84
003ddb00 10834000 002416a8 10aa3b00 00000000 00000080 000aa038 0004854a
Call Trace: [<00023fa6>] __warn+0xb2/0xb4
[<00023fea>] warn_slowpath_fmt+0x42/0x64
[<001a70f8>] refcount_warn_saturate+0x44/0x9a
[<00043aa8>] printk+0x0/0x18
[<001a70f8>] refcount_warn_saturate+0x44/0x9a
[<0026aba8>] refcount_sub_and_test.constprop.73+0x38/0x3e
[<0026d5a8>] ipv4_dst_destroy+0x5e/0x7e
[<00025e84>] __local_bh_enable_ip+0x0/0x8e
[<002416a8>] dst_destroy+0x40/0xae
Fix this by forcing 4-byte alignment of all dst_metrics structures.
Fixes: e5fd387ad5
2020-01-04 13:40:19 +01:00
Bluetooth: Align minimum encryption key size for LE and BR/EDR connections
2019-07-10 09:55:34 +02:00
caif: reduce stack size with KASAN
2019-05-08 07:19:07 +02:00
s390/iucv: do not use arrays as argument
2015-09-21 16:03:04 -07:00
netfilter: nf_tables: Align nft_expr private data to 64-bit
2019-11-12 19:15:45 +01:00
inet: switch IP ID generator to siphash
2019-08-25 10:51:42 +02:00
NFC: Fix the number of pipes
2018-09-29 03:07:30 -07:00
phonet: fix building with clang
2019-03-23 13:19:44 +01:00
sctp: cache netns in sctp_ep_common
2019-12-05 15:35:29 +01:00
net/sched: act_tunnel_key: fix NULL dereference when 'goto chain' is used
2018-08-24 13:12:37 +02:00
6lowpan: add 802.15.4 short addr slaac
2016-06-15 20:41:22 -07:00
net_sched: convert tcf_exts from list to pointer array
2016-08-17 19:27:51 -04:00
ipv6: reorder ip6_route_dev_notifier after ipv6_dev_notf
2017-05-14 14:00:21 +02:00
ieee802154: af_ieee802154: fix typo in comment.
2015-09-17 13:20:05 +02:00
rxrpc: Rewrite the data and ack handling code
2016-09-08 11:10:12 +01:00
af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock'
2016-09-04 13:29:29 -07:00
vsock: split dwork to avoid reinitializations
2018-08-22 07:47:13 +02:00
ipv4: Define __ipv4_neigh_lookup_noref when CONFIG_INET is disabled
2019-06-11 12:22:49 +02:00
ax25: fix possible use-after-free
2019-02-23 09:05:59 +01:00
bonding: 3ad: apply ad_actor settings changes immediately
2016-02-09 04:45:49 -05:00
bonding: convert num_grat_arp to the new bonding option API
2015-07-27 01:05:24 -07:00
bonding: avoid possible dead-lock
2018-10-18 09:13:21 +02:00
net: un-inline sk_busy_loop()
2015-11-18 16:17:38 -05:00
calipso: Add a label cache.
2016-06-27 15:06:17 -04:00
cfg80211: make RATE_INFO_BW_20 the default
2018-04-13 19:47:49 +02:00
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
csum: Update csum_block_add to use rotate instead of byteswap
2016-03-13 15:01:00 -04:00
netlabel: out of bound access in cipso_v4_validate()
2017-02-18 15:11:41 +01:00
cls_cgroup: get sk_classid only from full sockets
2016-04-19 20:09:25 -04:00
codel: split into multiple files
2016-04-25 16:44:27 -04:00
codel: split into multiple files
2016-04-25 16:44:27 -04:00
net_sched: fq_codel: cache skb->truesize into skb->cb
2016-06-25 12:19:35 -04:00
packet: compat support for sock_fprog
2016-06-09 23:41:03 -07:00
devlink: remove unused priv_size
2016-08-26 11:55:18 -07:00
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
net: dsa: add port fast ageing
2016-09-23 08:38:50 -04:00
net: dst: Force 4-byte alignment of dst_metrics
2020-01-04 13:40:19 +01:00
net: add dst_cache support
2016-02-16 20:21:48 -05:00
net/dst: Utility functions to build dst_metadata without supplying an skb
2016-09-10 20:53:55 -07:00
ipv4, ipv6: Pass net into __ip_local_out and __ip6_local_out
2015-10-08 04:27:02 -07:00
net/ethoc: support big-endian register layout
2015-09-23 15:33:15 -07:00
net: Add l3mdev rule
2016-06-08 11:36:02 -07:00
net: flow: Remove FLOWI_FLAG_L3MDEV_SRC flag
2016-09-10 23:12:53 -07:00
net/flow_dissector: switch to siphash
2019-11-10 11:23:31 +01:00
fou: Add encap ops for IPv6 tunnels
2016-05-20 18:03:16 -04:00
net/flow_dissector: switch to siphash
2019-11-10 11:23:31 +01:00
net/flow_dissector: switch to siphash
2019-11-10 11:23:31 +01:00
net: sched: do not acquire qdisc spinlock in qdisc/class stats dump
2016-06-07 16:37:14 -07:00
Revert "genl: Add genlmsg_new_unicast() for unicast message allocation"
2016-02-18 11:42:19 -05:00
net: Remove deprecated tunnel specific UDP offload functions
2016-06-17 20:23:32 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-08-18 01:17:32 -04:00
gro_cells: make sure device is up in gro_cells_receive()
2019-03-19 13:14:10 +01:00
gtp: #define #define _GTP_H_ and not #define _GTP_H
2016-07-25 17:55:43 -07:00
net: add a hardware buffer management helper API
2016-03-14 12:19:46 -04:00
net: Add __icmp_send helper.
2019-03-13 14:04:53 -07:00
mac80211: add support for radiotap timestamp field
2016-09-12 11:45:45 +02:00
mac802154: constify ieee802154_llsec_ops structure
2016-01-04 20:40:41 +01:00
IPv6: fix DESYNC_FACTOR
2016-10-14 10:59:15 -04:00
ila: Add generic ILA translation facility
2015-12-15 23:25:20 -05:00
ipv6: remove unused in6_addr struct
2016-03-22 15:45:44 -04:00
tcp/dccp: do not touch listener sk_refcnt under synflood
2016-04-04 22:11:20 -04:00
ip4ip6: Support for GSO/GRO
2016-05-20 18:03:17 -04:00
tcp/dccp: drop SYN packets if accept queue is full
2019-03-27 14:13:04 +09:00
ipv6: suppress sparse warnings in IP6_ECN_set_ce()
2016-08-13 15:08:00 -07:00
net: IP defrag: encapsulate rbtree defrag code into callable functions
2019-05-02 09:32:06 +02:00
tcp/dccp: do not touch listener sk_refcnt under synflood
2016-04-04 22:11:20 -04:00
inet: make sure to grab rcu_read_lock before using ireq->ireq_opt
2018-10-18 09:13:23 +02:00
soreuseport: initialise timewait reuseport field
2018-05-16 10:08:41 +02:00
net: ipv4: use a dedicated counter for icmp_v4 redirect packets
2019-02-23 09:05:59 +01:00
inet: protect against too small mtu values.
2019-12-21 10:42:25 +01:00
ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short
2016-03-13 23:55:13 -04:00
ipv6: fix sparse warning on rt6i_node
2017-09-20 08:19:53 +02:00
net: ipv6: Compare lwstate in detecting duplicate nexthops
2017-07-21 07:42:19 +02:00
ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
2019-07-21 09:05:57 +02:00
net: ipv4: Fix memory leak in network namespace dismantle
2019-01-31 08:12:33 +01:00
ip_tunnel: add collect_md mode to IPIP tunnel
2016-09-17 10:13:07 -04:00
ipvs: move old_secure_tcp into struct netns_ipvs
2019-11-12 19:15:57 +01:00
ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module
2019-05-02 09:32:06 +02:00
ip6: fix skb leak in ip6frag_expire_frag_queue()
2019-09-16 08:19:33 +02:00
wext: handle NULL extra data in iwe_stream_add_point better
2017-08-11 08:49:34 -07:00
kcm: Use stream parser
2016-08-17 19:36:23 -04:00
ipvlan, l3mdev: fix broken l3s mode wrt local routes
2019-02-06 17:33:27 +01:00
llc: avoid blocking in llc_sap_close()
2019-11-25 09:52:18 +01:00
llc: fix sk_buff leak in llc_conn_service()
2019-11-06 12:18:24 +01:00
lwtunnel: valid encap attr check should return 0 when lwtunnel is disabled
2017-02-18 15:11:42 +01:00
mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4
2018-05-30 07:50:28 +02:00
ieee802154: cleanup WARN_ON for fc fetch
2016-07-08 13:23:12 +02:00
openvswitch: use mpls_hdr
2016-10-03 02:00:22 -04:00
mpls: multipath route support
2015-10-23 06:26:42 -07:00
net/ncsi: Introduce ncsi_stop_dev()
2016-10-04 02:11:51 -04:00
6lowpan: introduce 6lowpan-nd
2016-06-15 20:41:23 -07:00
net: fix data-race in neigh_event_send()
2019-11-12 19:15:38 +01:00
netns: provide pure entropy for net_hash_mix()
2019-04-17 08:36:46 +02:00
neigh: Send a notification when DELAY_PROBE_TIME changes
2016-07-05 09:06:29 -07:00
netlabel: Implement CALIPSO config functions for SMACK.
2016-06-27 15:06:18 -04:00
netlink: fix nla_put_{u8,u16,u32} for KASAN
2017-10-12 11:51:25 +02:00
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
2015-12-08 22:02:33 -05:00
net: fix rtnh_ok()
2018-05-16 10:08:41 +02:00
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
net: ping: make ping_v6_sendmsg static
2016-03-23 22:09:58 -04:00
net/sched: pkt_cls: change tc actions order to be as the user sets
2016-09-28 05:02:44 -04:00
net: sched: convert qdisc linked list to hashtable
2016-08-10 17:19:02 -07:00
pptp: Refactor the struct and macros of PPTP codes
2016-08-15 10:55:53 -07:00
udp: Remove udp_offloads
2016-04-07 16:53:30 -04:00
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
net_sched: red: Avoid illegal values
2018-02-25 11:05:48 +01:00
regulatory: add NUL to request alpha2
2018-05-30 07:50:30 +02:00
inet: reqsk_alloc() needs to take care of dead listeners
2016-04-04 22:11:19 -04:00
ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu
2018-05-30 07:50:36 +02:00
net: rtnetlink: add support for the IFLA_STATS_LINK_XSTATS_SLAVE attribute
2016-06-30 06:15:04 -04:00
sch_netem: fix rcu splat in netem_enqueue()
2019-11-06 12:18:25 +01:00
unix: correctly track in-flight fds in sending process user_struct
2016-02-08 10:30:42 -05:00
slip: Check if rstate is initialized before uncompressing
2018-04-20 08:21:07 +02:00
net: snmp: fix 64bit stats on 32bit arches
2016-04-28 11:49:45 -04:00
net: fix possible overflow in __sk_mem_raise_allocated()
2019-12-05 15:35:13 +01:00
soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind
2016-01-19 14:44:23 -05:00
kcm: Remove TCP specific references from kcm and strparser
2016-08-28 23:32:41 -04:00
switchdev: remove FIB offload infrastructure
2016-09-28 04:48:00 -04:00
tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE()
2019-12-21 10:42:27 +01:00
inet: remove BUG_ON() in twsk_destructor()
2015-07-09 15:12:20 -07:00
ipv6: add new struct ipcm6_cookie
2016-05-03 16:08:14 -04:00
net: tso: add support for IPv6
2015-10-26 22:24:22 -07:00
udp: must lock the socket in udp_disconnect()
2016-10-20 14:45:52 -04:00
vxlan: Add new UDP encapsulation offload type for VXLAN-GPE
2016-06-17 20:23:32 -07:00
udplite: fix partial checksum initialization
2018-03-11 16:21:32 +01:00
vxlan: fix hlist corruption
2017-07-21 07:42:18 +02:00
net: x25: fix one potential use-after-free issue
2018-04-13 19:48:00 +02:00
xfrm: clean up xfrm protocol checks
2019-09-16 08:19:32 +02:00
3420bd514a