mirror of
https://github.com/a52xq-dev/kernel.git
synced 2026-10-20 06:38:13 +07:00
| SHA1 | ||
|---|---|---|
-----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEEcQCq365ubpQNLgrWVeRaWujKfIoFAls2gk0UHHBhdWxAcGF1 bC1tb29yZS5jb20ACgkQVeRaWujKfIqEvRAAgjtXjU7cN9Vj7GZpwgSjJKyXSruR RDM19CRDKIo27UoxaqD92hFnmDreoysdzLi9cunDxshsUbGdHeyXvaOkY2apqpkn msPIKO3pmoiq0Umze1/smgl6g0ruPxc+ZSslfuHLUjephogfuDGKgfTeLN60z6up KaiVPoaSni+DZSsiFOkzUHwQFfhTRqONBx/tfPo2H1K0bP2dy9YuOCdvpZEqpc7P 8tx/uF3pYrUBuq9ufEgWt2VC0fU1uZJEI21BQqKcrXLYlmVr73pWYLXnV1NWck0A rY5DABxbDf1sXCAIhYRJJDiM51uPltmFfntGF3sS1OKYOgyxIxf51xwgl9dXsGOA jOFFwUuXeHJpWICTm1PQCdpA/mzLVgrPzt8ULPE6zYnP+LbBId6RSrPz6Irhswal /wiq1mlhdAdeBf2r/tY3VXUy8dMNLjfeHLD3scx07hfFuswXCPTC6xwlyiKPsgKD 1hGCQazZZTNAcMVI4A00SpPZVGx1yU/Yu/+8vMKyV5BmT55TPcQElcQy+ZZxuX1a 711B9U7P6w7k8UwL+hVSncgwCLI1vb4MKnmrGZRH9wXiUdaKcgivaDDoeoLTtqBF dcIP84OtigAHbJHxWXoTmuRX9KGmtgF5sUBgFv2kg8R8EgnmVKaWJxyyttRg4awo RZXmTh2eC3p3IGw= =fzCd -----END PGP SIGNATURE----- Merge tag 'selinux-pr-20180629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux Pull selinux fix from Paul Moore: "One fairly straightforward patch to fix a longstanding issue where a process could stall while accessing files in selinuxfs and block everyone else due to a held mutex. The patch passes all our tests and looks to apply cleanly to your current tree" * tag 'selinux-pr-20180629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: move user accesses in selinuxfs out of locked regions 
Linus Torvalds
commited |
34a484d58c | |
If a user is accessing a file in selinuxfs with a pointer to a userspace
buffer that is backed by e.g. a userfaultfd, the userspace access can
stall indefinitely, which can block fsi->mutex if it is held.
For sel_read_policy(), remove the locking, since this method doesn't seem
to access anything that requires locking.
For sel_read_bool(), move the user access below the locked region.
For sel_write_bool() and sel_commit_bools_write(), move the user access
up above the locked region.
Cc: stable@vger.kernel.org
Fixes:
Jann Horn
authored and
 Paul Moore
commited |
0da74120c5 | |
Commit 
Eric Biggers
authored and
 James Morris
commited |
3619dec510 | |
Smack: Mark inode instant in smack_task_to_inode
/proc clean-up in commit
Casey Schaufler
authored and
James Morris
commited |
7b4e88434c | |
As we move stuff around, some doc references are broken. Fix some of them via this script: ./scripts/documentation-file-ref-check --fix Manually checked if the produced result is valid, removing a few false-positives. Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Coly Li <colyli@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net> 
Mauro Carvalho Chehab
commited |
5fb94e9ca3 | |
The script: ./scripts/documentation-file-ref-check --fix Gives multiple hints for broken references on some files. Manually use the one that applies for some files. Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: James Morris <james.morris@microsoft.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
Mauro Carvalho Chehab
commited |
ec15872daa | |
- add support for mapping secids and using secctxes - add the ability to get a task's secid - add support for audit rule filtering + Cleanups - multiple typo fixes - Convert to use match_string() helper - update git and wiki locations in AppArmor docs - improve get_buffers macro by using get_cpu_ptr - Use an IDR to allocate apparmor secids + Bug fixes - fix '*seclen' is never less than zero - fix mediation of prlimit - fix memory leak when deduping profile load - fix ptrace read check - fix memory leak of rule on error exit path -----BEGIN PGP SIGNATURE----- iQIcBAABCgAGBQJbIPxYAAoJEAUvNnAY1cPYVOQQAKfVO71Mk1U6zegWk8VJoiRy /wb3ZjMy9KCE5UWNPp0jyB3qzFpejZizycRwVS2k1l/SjugACxvq1fyZ85bzys10 pb8efsWU/Co4l45PfaHpoqCJYr3+3/PBPwSU9vb8ScEFnb95D+0d7KRgA6uIC7lE H/zbjot1AXGX0CVKmQkKXdi+Ldnbzqv7GtCzipKWDeD0JJqgOKu8NOnnAfJiSNs7 YlIhcr6K4nRxHJ6e8vxbYeogbBzmVWZwWHN8ViXj5Bbox93FRlkkSqxw8Ke8SmXi y/wQabMQMPZHr2SvQjvFD3cpBmKaMG9NktIjy/4tYcTbhZPNgx/wJSSzRiySFTiW hPbXWueI75P3Zepj4rRaXy0T68fQaj4k2lTItxkqGN1UOu8mibMlOkE6ZmllTKO7 xPvLgZL7/vYS0fKqJaikZbMhWTBtQD/w0ZwYzmT77umOgRHQvrGKi9nk49fIigOo aftf8VIjMBUND2JMWCQn1d33CJUXdONpW0aX6cr5Xxthnlz5+aa9Ki2s58BFMVI3 PSMhOr6kdpxrkemEnoVnFMohxRb+u046ecM5X5E2rMEbH3PHow5bzaXyTBHFAiYY rPn/sKNaXtw4hdMcnv9lmFKyObAdoBxY4bRKzrPTC66sIMncLYVzcSzWY6C3bMfm tuu+zmVF0v5JENrcwccQ =EVj2 -----END PGP SIGNATURE----- Merge tag 'apparmor-pr-2018-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor Pull AppArmor updates from John Johansen: "Features - add support for mapping secids and using secctxes - add the ability to get a task's secid - add support for audit rule filtering Cleanups: - multiple typo fixes - Convert to use match_string() helper - update git and wiki locations in AppArmor docs - improve get_buffers macro by using get_cpu_ptr - Use an IDR to allocate apparmor secids Bug fixes: - fix '*seclen' is never less than zero - fix mediation of prlimit - fix memory leak when deduping profile load - fix ptrace read check - fix memory leak of rule on error exit path" * tag 'apparmor-pr-2018-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: (21 commits) apparmor: fix ptrace read check apparmor: fix memory leak when deduping profile load apparmor: fix mediation of prlimit apparmor: fixup secid map conversion to using IDR apparmor: Use an IDR to allocate apparmor secids apparmor: Fix memory leak of rule on error exit path apparmor: modify audit rule support to support profile stacks apparmor: Add support for audit rule filtering apparmor: update git and wiki locations in AppArmor docs apparmor: Convert to use match_string() helper apparmor: improve get_buffers macro by using get_cpu_ptr apparmor: fix '*seclen' is never less than zero apparmor: fix typo "preconfinement" apparmor: fix typo "independent" apparmor: fix typo "traverse" apparmor: fix typo "type" apparmor: fix typo "replace" apparmor: fix typo "comparison" apparmor: fix typo "loosen" apparmor: add the ability to get a task's secid ...
Linus Torvalds
commited |
463f202172 | |
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:
kzalloc(a * b, gfp)
with:
kcalloc(a * b, gfp)
as well as handling cases of:
kzalloc(a * b * c, gfp)
with:
kzalloc(array3_size(a, b, c), gfp)
as it's slightly less ugly than:
kzalloc_array(array_size(a, b), c, gfp)
This does, however, attempt to ignore constant size factors like:
kzalloc(4 * 1024, gfp)
though any constants defined via macros get caught up in the conversion.
Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.
The Coccinelle script used for this was:
// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@
(
kzalloc(
- (sizeof(TYPE)) * E
+ sizeof(TYPE) * E
, ...)
|
kzalloc(
- (sizeof(THING)) * E
+ sizeof(THING) * E
, ...)
)
// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@
(
kzalloc(
- sizeof(u8) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(__u8) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(char) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(unsigned char) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(u8) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(__u8) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(char) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(unsigned char) * COUNT
+ COUNT
, ...)
)
// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@
(
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (COUNT_ID)
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * COUNT_ID
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (COUNT_CONST)
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * COUNT_CONST
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (COUNT_ID)
+ COUNT_ID, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * COUNT_ID
+ COUNT_ID, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (COUNT_CONST)
+ COUNT_CONST, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * COUNT_CONST
+ COUNT_CONST, sizeof(THING)
, ...)
)
// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@
- kzalloc
+ kcalloc
(
- SIZE * COUNT
+ COUNT, SIZE
, ...)
// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@
(
kzalloc(
- sizeof(TYPE) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(THING) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
)
// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@
(
kzalloc(
- sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kzalloc(
- sizeof(THING1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(THING1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
)
// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@
(
kzalloc(
- (COUNT) * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
)
// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@
(
kzalloc(C1 * C2 * C3, ...)
|
kzalloc(
- (E1) * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- (E1) * (E2) * E3
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- (E1) * (E2) * (E3)
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- E1 * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
)
// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@
(
kzalloc(sizeof(THING) * C2, ...)
|
kzalloc(sizeof(TYPE) * C2, ...)
|
kzalloc(C1 * C2 * C3, ...)
|
kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (E2)
+ E2, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * E2
+ E2, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (E2)
+ E2, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * E2
+ E2, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- (E1) * E2
+ E1, E2
, ...)
|
- kzalloc
+ kcalloc
(
- (E1) * (E2)
+ E1, E2
, ...)
|
- kzalloc
+ kcalloc
(
- E1 * E2
+ E1, E2
, ...)
)
Signed-off-by: Kees Cook <keescook@chromium.org>
Kees Cook
commited |
6396bb2215 | |
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This
patch replaces cases of:
kmalloc(a * b, gfp)
with:
kmalloc_array(a * b, gfp)
as well as handling cases of:
kmalloc(a * b * c, gfp)
with:
kmalloc(array3_size(a, b, c), gfp)
as it's slightly less ugly than:
kmalloc_array(array_size(a, b), c, gfp)
This does, however, attempt to ignore constant size factors like:
kmalloc(4 * 1024, gfp)
though any constants defined via macros get caught up in the conversion.
Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.
The tools/ directory was manually excluded, since it has its own
implementation of kmalloc().
The Coccinelle script used for this was:
// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@
(
kmalloc(
- (sizeof(TYPE)) * E
+ sizeof(TYPE) * E
, ...)
|
kmalloc(
- (sizeof(THING)) * E
+ sizeof(THING) * E
, ...)
)
// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@
(
kmalloc(
- sizeof(u8) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(__u8) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(char) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(unsigned char) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(u8) * COUNT
+ COUNT
, ...)
|
kmalloc(
- sizeof(__u8) * COUNT
+ COUNT
, ...)
|
kmalloc(
- sizeof(char) * COUNT
+ COUNT
, ...)
|
kmalloc(
- sizeof(unsigned char) * COUNT
+ COUNT
, ...)
)
// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@
(
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (COUNT_ID)
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * COUNT_ID
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (COUNT_CONST)
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * COUNT_CONST
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (COUNT_ID)
+ COUNT_ID, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * COUNT_ID
+ COUNT_ID, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (COUNT_CONST)
+ COUNT_CONST, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * COUNT_CONST
+ COUNT_CONST, sizeof(THING)
, ...)
)
// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@
- kmalloc
+ kmalloc_array
(
- SIZE * COUNT
+ COUNT, SIZE
, ...)
// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@
(
kmalloc(
- sizeof(TYPE) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(THING) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
)
// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@
(
kmalloc(
- sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kmalloc(
- sizeof(THING1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(THING1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
)
// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@
(
kmalloc(
- (COUNT) * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
)
// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@
(
kmalloc(C1 * C2 * C3, ...)
|
kmalloc(
- (E1) * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- (E1) * (E2) * E3
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- (E1) * (E2) * (E3)
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- E1 * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
)
// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@
(
kmalloc(sizeof(THING) * C2, ...)
|
kmalloc(sizeof(TYPE) * C2, ...)
|
kmalloc(C1 * C2 * C3, ...)
|
kmalloc(C1 * C2, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (E2)
+ E2, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * E2
+ E2, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (E2)
+ E2, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * E2
+ E2, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- (E1) * E2
+ E1, E2
, ...)
|
- kmalloc
+ kmalloc_array
(
- (E1) * (E2)
+ E1, E2
, ...)
|
- kmalloc
+ kmalloc_array
(
- E1 * E2
+ E1, E2
, ...)
)
Signed-off-by: Kees Cook <keescook@chromium.org>
Kees Cook
commited |
6da2ec5605 | |
Pull smack update from James Morris:
"From Casey:
One simple patch that fixes a memory leak in kernfs and labeled NFS"
* 'next-smack' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
Smack: Fix memory leak in smack_inode_getsecctx
Linus Torvalds
commited |
ba1b7309fc | |
Pull integrity updates from James Morris:
"From Mimi:
- add run time support for specifying additional security xattrs
included in the security.evm HMAC/signature
- some code clean up and bug fixes"
* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
EVM: unlock on error path in evm_read_xattrs()
EVM: prevent array underflow in evm_write_xattrs()
EVM: Fix null dereference on xattr when xattr fails to allocate
EVM: fix memory leak of temporary buffer 'temp'
IMA: use list_splice_tail_init_rcu() instead of its open coded variant
ima: use match_string() helper
ima: fix updating the ima_appraise flag
ima: based on policy verify firmware signatures (pre-allocated buffer)
ima: define a new policy condition based on the filesystem name
EVM: Allow runtime modification of the set of verified xattrs
EVM: turn evm_config_xattrnames into a list
integrity: Add an integrity directory in securityfs
ima: Remove unused variable ima_initialized
ima: Unify logging
ima: Reflect correct permissions for policy
Linus Torvalds
commited |
00d535a386 | |
The ptrace read check is incorrect resulting in policy that is
broader than it needs to be. Fix the check so that read access
permission can be properly detected when other ptrace flags are
set.
Fixes:
John Johansen
commited |
338d0be437 | |
AppArmor is leaking the newly loaded profile and its proxy when
the profile is an exact match to the currently loaded version.
In this case the dedup check results in the profile being skipped and
put without dealing with the proxy ref thus not breaking a circular
refcount and causing a leak.
BugLink: http://bugs.launchpad.net/bugs/1750594
Fixes:
John Johansen
commited |
3ddae9876a | |
For primit apparmor requires that if target confinement does not match
the setting task's confinement, the setting task requires CAP_SYS_RESOURCE.
Unfortunately this was broken when rlimit enforcement was reworked to
support labels.
Fixes:
John Johansen
commited |
11c92f144b | |
The IDR conversion did not handle an error case for when allocating a
mapping fails, and it did not ensure that mappings did not allocate or
use a 0 value, which is used as an invalid secid. Which is used when a
mapping fails.
Fixes: 3ae7eb49a2be ("apparmor: Use an IDR to allocate apparmor secids")
Signed-off-by: John Johansen <john.johansen@canonical.com>
John Johansen
commited |
a4c3f89c9b | |
Replace the custom usage of the radix tree to store a list of free IDs with the IDR. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: John Johansen <john.johansen@canonical.com> 
Matthew Wilcox
authored and
John Johansen
commited |
99cc45e486 | |
Currently on the error exit path the allocated rule is not free'd
causing a memory leak. Fix this by calling aa_audit_rule_free().
Detected by CoverityScan, CID#1468966 ("Resource leaks")
Fixes: cb740f574c7b ("apparmor: modify audit rule support to support profile stacks")
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Tyler Hicks
authored and
John Johansen
commited |
52e8c38001 | |
Allows for audit rules, where a rule could specify a profile stack A//&B, while extending the current semantic so if the label specified in the audit rule is a subset of the secid it is considered a match. Eg. if the secid resolves to the label stack A//&B//&C Then an audit rule specifying a label of A - would match B - would match C - would match D - would not A//&B - would match as a subset A//&C - would match as a subset B//&C - would match as a subset A//&B//&C - would match A//&D - would not match, because while A does match, D is also specified and does not Note: audit rules are currently assumed to be coming from the root namespace. Signed-off-by: John Johansen <john.johansen@canonical.com>
John Johansen
commited |
2ab47dae54 | |
This patch adds support to Apparmor for integrating with audit rule filtering. Right now it only handles SUBJ_ROLE, interpreting it as a single component of a label. This is sufficient to get Apparmor working with IMA's appraisal rules without any modifications on the IMA side. Signed-off-by: Matthew Garrett <mjg59@google.com> Signed-off-by: John Johansen <john.johansen@canonical.com> 
Matthew Garrett
authored and
John Johansen
commited |
e79c26d040 | |
The new helper returns index of the matching string in an array. We are going to use it here. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jay Freyensee <why2jjj.linux@gmail.com> Signed-off-by: John Johansen <john.johansen@canonical.com> 
Andy Shevchenko
authored and
John Johansen
commited |
5d8779a5cd | |
Refactor get_buffers so the cpu_ptr can be obtained in the outer layer, instead of inside the macro. This also enables us to cleanup the code and use get_cpu_ptr, to handle the preempt_disable() Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
John Johansen
commited |
38125c2c2b | |
Pull networking updates from David Miller:
1) Add Maglev hashing scheduler to IPVS, from Inju Song.
2) Lots of new TC subsystem tests from Roman Mashak.
3) Add TCP zero copy receive and fix delayed acks and autotuning with
SO_RCVLOWAT, from Eric Dumazet.
4) Add XDP_REDIRECT support to mlx5 driver, from Jesper Dangaard
Brouer.
5) Add ttl inherit support to vxlan, from Hangbin Liu.
6) Properly separate ipv6 routes into their logically independant
components. fib6_info for the routing table, and fib6_nh for sets of
nexthops, which thus can be shared. From David Ahern.
7) Add bpf_xdp_adjust_tail helper, which can be used to generate ICMP
messages from XDP programs. From Nikita V. Shirokov.
8) Lots of long overdue cleanups to the r8169 driver, from Heiner
Kallweit.
9) Add BTF ("BPF Type Format"), from Martin KaFai Lau.
10) Add traffic condition monitoring to iwlwifi, from Luca Coelho.
11) Plumb extack down into fib_rules, from Roopa Prabhu.
12) Add Flower classifier offload support to igb, from Vinicius Costa
Gomes.
13) Add UDP GSO support, from Willem de Bruijn.
14) Add documentation for eBPF helpers, from Quentin Monnet.
15) Add TLS tx offload to mlx5, from Ilya Lesokhin.
16) Allow applications to be given the number of bytes available to read
on a socket via a control message returned from recvmsg(), from
Soheil Hassas Yeganeh.
17) Add x86_32 eBPF JIT compiler, from Wang YanQing.
18) Add AF_XDP sockets, with zerocopy support infrastructure as well.
From Björn Töpel.
19) Remove indirect load support from all of the BPF JITs and handle
these operations in the verifier by translating them into native BPF
instead. From Daniel Borkmann.
20) Add GRO support to ipv6 gre tunnels, from Eran Ben Elisha.
21) Allow XDP programs to do lookups in the main kernel routing tables
for forwarding. From David Ahern.
22) Allow drivers to store hardware state into an ELF section of kernel
dump vmcore files, and use it in cxgb4. From Rahul Lakkireddy.
23) Various RACK and loss detection improvements in TCP, from Yuchung
Cheng.
24) Add TCP SACK compression, from Eric Dumazet.
25) Add User Mode Helper support and basic bpfilter infrastructure, from
Alexei Starovoitov.
26) Support ports and protocol values in RTM_GETROUTE, from Roopa
Prabhu.
27) Support bulking in ->ndo_xdp_xmit() API, from Jesper Dangaard
Brouer.
28) Add lots of forwarding selftests, from Petr Machata.
29) Add generic network device failover driver, from Sridhar Samudrala.
* ra.kernel.org:/pub/scm/linux/kernel/git/davem/net-next: (1959 commits)
strparser: Add __strp_unpause and use it in ktls.
rxrpc: Fix terminal retransmission connection ID to include the channel
net: hns3: Optimize PF CMDQ interrupt switching process
net: hns3: Fix for VF mailbox receiving unknown message
net: hns3: Fix for VF mailbox cannot receiving PF response
bnx2x: use the right constant
Revert "net: sched: cls: Fix offloading when ingress dev is vxlan"
net: dsa: b53: Fix for brcm tag issue in Cygnus SoC
enic: fix UDP rss bits
netdev-FAQ: clarify DaveM's position for stable backports
rtnetlink: validate attributes in do_setlink()
mlxsw: Add extack messages for port_{un, }split failures
netdevsim: Add extack error message for devlink reload
devlink: Add extack to reload and port_{un, }split operations
net: metrics: add proper netlink validation
ipmr: fix error path when ipmr_new_table fails
ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
net: hns3: remove unused hclgevf_cfg_func_mta_filter
netfilter: provide udp*_lib_lookup for nf_tproxy
qed*: Utilize FW 8.37.2.0
...
Linus Torvalds
commited |
1c8c5a9d38 | |
-----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEEcQCq365ubpQNLgrWVeRaWujKfIoFAlsXFUEUHHBhdWxAcGF1 bC1tb29yZS5jb20ACgkQVeRaWujKfIoomg//eRNpc6x9kxTijN670AC2uD0CBTlZ 2z6mHuJaOhG8bTxjZxQfUBoo6/eZJ2YC1yq6ornGFNzw4sfKsR/j86ujJim2HAmo opUhziq3SILGEvjsxfPkREe/wb49jy0AA/WjZqciitB1ig8Hz7xzqi0lpNaEspFh QJFB6XXkojWGFGrRzruAVJnPS+pDWoTQR0qafs3JWKnpeinpOdZnl1hPsysAEHt5 Ag8o4qS/P9xJM0khi7T+jWECmTyT/mtWqEtFcZ0o+JLOgt/EMvNX6DO4ETDiYRD2 mVChga9x5r78bRgNy2U8IlEWWa76WpcQAEODvhzbijX4RxMAmjsmLE+e+udZSnMZ eCITl2f7ExxrL5SwNFC/5h7pAv0RJ+SOC19vcyeV4JDlQNNVjUy/aNKv5baV0aeg EmkeobneMWxqHx52aERz8RF1in5pT8gLOYoYnWfNpcDEmjLrwhuZLX2asIzUEqrS SoPJ8hxIDCxceHOWIIrz5Dqef7x28Dyi46w3QINC8bSy2RnR/H3q40DRegvXOGiS 9WcbbwbhnM4Kau413qKicGCvdqTVYdeyZqo7fVelSciD139Vk7pZotyom4MuU25p fIyGfXa8/8gkl7fZ+HNkZbba0XWNfAZt//zT095qsp3CkhVnoybwe6OwG1xRqErq W7OOQbS7vvN/KGo= =10u6 -----END PGP SIGNATURE----- Merge tag 'audit-pr-20180605' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit Pull audit updates from Paul Moore: "Another reasonable chunk of audit changes for v4.18, thirteen patches in total. The thirteen patches can mostly be broken down into one of four categories: general bug fixes, accessor functions for audit state stored in the task_struct, negative filter matches on executable names, and extending the (relatively) new seccomp logging knobs to the audit subsystem. The main driver for the accessor functions from Richard are the changes we're working on to associate audit events with containers, but I think they have some standalone value too so I figured it would be good to get them in now. The seccomp/audit patches from Tyler apply the seccomp logging improvements from a few releases ago to audit's seccomp logging; starting with this patchset the changes in /proc/sys/kernel/seccomp/actions_logged should apply to both the standard kernel logging and audit. As usual, everything passes the audit-testsuite and it happens to merge cleanly with your tree" [ Heh, except it had trivial merge conflicts with the SELinux tree that also came in from Paul - Linus ] * tag 'audit-pr-20180605' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: Fix wrong task in comparison of session ID audit: use existing session info function audit: normalize loginuid read access audit: use new audit_context access funciton for seccomp_actions_logged audit: use inline function to set audit context audit: use inline function to get audit context audit: convert sessionid unset to a macro seccomp: Don't special case audited processes when logging seccomp: Audit attempts to modify the actions_logged sysctl seccomp: Configurable separator for the actions_logged string seccomp: Separate read and write code for actions_logged sysctl audit: allow not equal op for audit by executable audit: add syscall information to FEATURE_CHANGE records
Linus Torvalds
commited |
8b5c6a3a49 | |
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Linus Torvalds
commited |
8b70543e9a | |
Pull security system updates from James Morris:
- incorporate new socketpair() hook into LSM and wire up the SELinux
and Smack modules. From David Herrmann:
"The idea is to allow SO_PEERSEC to be called on AF_UNIX sockets
created via socketpair(2), and return the same information as if
you emulated socketpair(2) via a temporary listener socket.
Right now SO_PEERSEC will return the unlabeled credentials for a
socketpair, rather than the actual credentials of the creating
process."
- remove the unused security_settime LSM hook (Sargun Dhillon).
- remove some stack allocated arrays from the keys code (Tycho
Andersen)
* 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
dh key: get rid of stack allocated array for zeroes
dh key: get rid of stack allocated array
big key: get rid of stack array allocation
smack: provide socketpair callback
selinux: provide socketpair callback
net: hook socketpair() into LSM
security: add hook for socketpair()
security: remove security_settime
Linus Torvalds
commited |
10b1eb7d8c | |
"one simple patch that fixes a memory leak in kernfs and labeled NFS"
James Morris
commited |
2531a0cd2d | |
Fix memory leak in smack_inode_getsecctx The implementation of smack_inode_getsecctx() made incorrect assumptions about how Smack presents a security context. Smack does not need to allocate memory to support security contexts, so "releasing" a Smack context is a no-op. The code made an unnecessary copy and returned that as a context, which was never freed. The revised implementation returns the context correctly. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Reported-by: CHANDAN VN <chandan.vn@samsung.com> Tested-by: CHANDAN VN <chandan.vn@samsung.com>
Casey Schaufler
commited |
0f8983cf97 | |
Pull userns updates from Eric Biederman: "This is the last couple of vfs bits to enable root in a user namespace to mount and manipulate a filesystem with backing store (AKA not a virtual filesystem like proc, but a filesystem where the unprivileged user controls the content). The target filesystem for this work is fuse, and Miklos should be sending you the pull request for the fuse bits this merge window. The two key patches are "evm: Don't update hmacs in user ns mounts" and "vfs: Don't allow changing the link count of an inode with an invalid uid or gid". Those close small gaps in the vfs that would be a problem if an unprivileged fuse filesystem is mounted. The rest of the changes are things that are now safe to allow a root user in a user namespace to do with a filesystem they have mounted. The most interesting development is that remount is now safe" * 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: fs: Allow CAP_SYS_ADMIN in s_user_ns to freeze and thaw filesystems capabilities: Allow privileged user in s_user_ns to set security.* xattrs fs: Allow superblock owner to access do_remount_sb() fs: Allow superblock owner to replace invalid owners of inodes vfs: Allow userns root to call mknod on owned filesystems. vfs: Don't allow changing the link count of an inode with an invalid uid or gid evm: Don't update hmacs in user ns mounts
Linus Torvalds
commited |
d8aed8415b | |
Pull misc vfs updates from Al Viro: "Misc bits and pieces not fitting into anything more specific" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: delete unnecessary assignment in vfs_listxattr Documentation: filesystems: update filesystem locking documentation vfs: namei: use path_equal() in follow_dotdot() fs.h: fix outdated comment about file flags __inode_security_revalidate() never gets NULL opt_dentry make xattr_getsecurity() static vfat: simplify checks in vfat_lookup() get rid of dead code in d_find_alias() it's SB_BORN, not MS_BORN... msdos_rmdir(): kill BS comment remove rpc_rmdir() fs: avoid fdput() after failed fdget() in vfs_dedupe_file_range()
Linus Torvalds
commited |
f956d08a56 | |
Pull procfs updates from Al Viro:
"Christoph's proc_create_... cleanups series"
* 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (44 commits)
xfs, proc: hide unused xfs procfs helpers
isdn/gigaset: add back gigaset_procinfo assignment
proc: update SIZEOF_PDE_INLINE_NAME for the new pde fields
tty: replace ->proc_fops with ->proc_show
ide: replace ->proc_fops with ->proc_show
ide: remove ide_driver_proc_write
isdn: replace ->proc_fops with ->proc_show
atm: switch to proc_create_seq_private
atm: simplify procfs code
bluetooth: switch to proc_create_seq_data
netfilter/x_tables: switch to proc_create_seq_private
netfilter/xt_hashlimit: switch to proc_create_{seq,single}_data
neigh: switch to proc_create_seq_data
hostap: switch to proc_create_{seq,single}_data
bonding: switch to proc_create_seq_data
rtc/proc: switch to proc_create_single_data
drbd: switch to proc_create_single
resource: switch to proc_create_seq_data
staging/rtl8192u: simplify procfs code
jfs: simplify procfs code
...
Linus Torvalds
commited |
cf626b0da7 | |
Filling in the padding slot in the bpf structure as a bug fix in 'ne' overlapped with actually using that padding area for something in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net> 
David S. Miller
commited |
9c54aeb03a | |
We need to unlock before returning on this error path.
Fixes:
Dan Carpenter
authored and
 Mimi Zohar
commited |
b5c90a7526 | |
If the user sets xattr->name[0] to NUL then we would read one character
before the start of the array. This bug seems harmless as far as I can
see but perhaps it would trigger a warning in KASAN.
Fixes:
Dan Carpenter
authored and
Mimi Zohar
commited |
a41d80acfa | |
In the case where the allocation of xattr fails and xattr is NULL, the
error exit return path via label 'out' will dereference xattr when
kfree'ing xattr-name. Fix this by only kfree'ing xattr->name and xattr
when xattr is non-null.
Detected by CoverityScan, CID#1469366 ("Dereference after null check")
Fixes:
Colin Ian King
authored and
Mimi Zohar
commited |
72acd64df4 | |
The allocation of 'temp' is not kfree'd and hence there is a memory
leak on each call of evm_read_xattrs. Fix this by kfree'ing it
after copying data from it back to the user space buffer 'buf'.
Detected by CoverityScan, CID#1469386 ("Resource Leak")
Fixes:
Colin Ian King
authored and
Mimi Zohar
commited |
825b8650dc | |
Use list_splice_tail_init_rcu() to extend the existing custom IMA policy with additional IMA policy rules. Signed-off-by: Petko Manolov <petko.manolov@konsulko.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> 
Petko Manolov
authored and
Mimi Zohar
commited |
53b626f903 | |
match_string() returns the index of an array for a matching string, which can be used intead of open coded variant. Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> 
Yisheng Xie
authored and
Mimi Zohar
commited |
b4df86085a | |
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Merge tag 'selinux-pr-20180530' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux fix from Paul Moore:
"One more small fix for SELinux: a small string length fix found by
KASAN.
I dislike sending patches this late in the release cycle, but this
patch fixes a legitimate problem, is very small, limited in scope, and
well understood.
There are two threads with more information on the problem, the latest
is linked below:
https://marc.info/?t=152723737400001&r=1&w=2
Stephen points out in the thread linked above:
'Such a setxattr() call can only be performed by a process with
CAP_MAC_ADMIN that is also allowed mac_admin permission in SELinux
policy. Consequently, this is never possible on Android (no process
is allowed mac_admin permission, always enforcing) and is only
possible in Fedora/RHEL for a few domains (if enforcing)'"
* tag 'selinux-pr-20180530' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: KASAN: slab-out-of-bounds in xattr_getsecurity
Linus Torvalds
commited |
943cf9f3ca | |
Call trace: [<ffffff9203a8d7a8>] dump_backtrace+0x0/0x428 [<ffffff9203a8dbf8>] show_stack+0x28/0x38 [<ffffff920409bfb8>] dump_stack+0xd4/0x124 [<ffffff9203d187e8>] print_address_description+0x68/0x258 [<ffffff9203d18c00>] kasan_report.part.2+0x228/0x2f0 [<ffffff9203d1927c>] kasan_report+0x5c/0x70 [<ffffff9203d1776c>] check_memory_region+0x12c/0x1c0 [<ffffff9203d17cdc>] memcpy+0x34/0x68 [<ffffff9203d75348>] xattr_getsecurity+0xe0/0x160 [<ffffff9203d75490>] vfs_getxattr+0xc8/0x120 [<ffffff9203d75d68>] getxattr+0x100/0x2c8 [<ffffff9203d76fb4>] SyS_fgetxattr+0x64/0xa0 [<ffffff9203a83f70>] el0_svc_naked+0x24/0x28 If user get root access and calls security.selinux setxattr() with an embedded NUL on a file and then if some process performs a getxattr() on that file with a length greater than the actual length of the string, it would result in a panic. To fix this, add the actual length of the string to the security context instead of the length passed by the userspace process. Signed-off-by: Sachin Grover <sgrover@codeaurora.org> Cc: stable@vger.kernel.org Signed-off-by: Paul Moore <paul@paul-moore.com> 
Sachin Grover
authored and
Paul Moore
commited |
efe3de79e0 | |
Lots of easy overlapping changes in the confict resolutions here. Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller
commited |
5b79c2af66 | |
A privileged user in s_user_ns will generally have the ability to manipulate the backing store and insert security.* xattrs into the filesystem directly. Therefore the kernel must be prepared to handle these xattrs from unprivileged mounts, and it makes little sense for commoncap to prevent writing these xattrs to the filesystem. The capability and LSM code have already been updated to appropriately handle xattrs from unprivileged mounts, so it is safe to loosen this restriction on setting xattrs. The exception to this logic is that writing xattrs to a mounted filesystem may also cause the LSM inode_post_setxattr or inode_setsecurity callbacks to be invoked. SELinux will deny the xattr update by virtue of applying mountpoint labeling to unprivileged userns mounts, and Smack will deny the writes for any user without global CAP_MAC_ADMIN, so loosening the capability check in commoncap is safe in this respect as well. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Acked-by: Serge Hallyn <serge@hallyn.com> Acked-by: Christian Brauner <christian@brauner.io> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> 
Eric W. Biederman
commited |
b1d749c5c3 | |
As IMA policy rules are added, a mask of the type of rule (eg. kernel
modules, firmware, IMA policy) is updated. Unlike custom IMA policy
rules, which replace the original builtin policy rules and update the
mask, the builtin "secure_boot" policy rules were loaded, but did not
update the mask.
This patch refactors the code to load custom policies, defining a new
function named ima_appraise_flag(). The new function is called either
when loading the builtin "secure_boot" or custom policies.
Fixes:
Mimi Zohar
commited |
6f0911a666 | |
Don't differentiate, for now, between kernel_read_file_id READING_FIRMWARE
and READING_FIRMWARE_PREALLOC_BUFFER enumerations.
Fixes:
Mimi Zohar
commited |
fd90bc559b | |
If/when file data signatures are distributed with the file data, this patch will not be needed. In the current environment where only some files are signed, the ability to differentiate between file systems is needed. Some file systems consider the file system magic number internal to the file system. This patch defines a new IMA policy condition named "fsname", based on the superblock's file_system_type (sb->s_type) name. This allows policy rules to be expressed in terms of the filesystem name. The following sample rules require file signatures on rootfs files executed or mmap'ed. appraise func=BPRM_CHECK fsname=rootfs appraise_type=imasig appraise func=FILE_MMAP fsname=rootfs appraise_type=imasig Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Theodore Ts'o <tytso@mit.edu>
Mimi Zohar
commited |
f1b08bbcbd | |
S390 bpf_jit.S is removed in net-next and had changes in 'net', since that code isn't used any more take the removal. TLS data structures split the TX and RX components in 'net-next', put the new struct members from the bug fix in 'net' into the RX part. The 'net-next' tree had some reworking of how the ERSPAN code works in the GRE tunneling code, overlapping with a one-line headroom calculation fix in 'net'. Overlapping changes in __sock_map_ctx_update_elem(), keep the bits that read the prog members via READ_ONCE() into local variables before using them. Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller
commited |
6f6e434aa2 | |
Pull vfs fixes from Al Viro: "Assorted fixes all over the place" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: aio: fix io_destroy(2) vs. lookup_ioctx() race ext2: fix a block leak nfsd: vfs_mkdir() might succeed leaving dentry negative unhashed cachefiles: vfs_mkdir() might succeed leaving dentry negative unhashed unfuck sysfs_mount() kernfs: deal with kernfs_fill_super() failures cramfs: Fix IS_ENABLED typo befs_lookup(): use d_splice_alias() affs_lookup: switch to d_splice_alias() affs_lookup(): close a race with affs_remove_link() fix breakage caused by d_find_alias() semantics change fs: don't scan the inode cache before SB_BORN is set do d_instantiate/unlock_new_inode combinations safely iov_iter: fix memory leak in pipe_get_pages_alloc() iov_iter: fix return type of __pipe_get_pages()
Linus Torvalds
commited |
5997aab0a1 | |
Sites may wish to provide additional metadata alongside files in order to make more fine-grained security decisions[1]. The security of this is enhanced if this metadata is protected, something that EVM makes possible. However, the kernel cannot know about the set of extended attributes that local admins may wish to protect, and hardcoding this policy in the kernel makes it difficult to change over time and less convenient for distributions to enable. This patch adds a new /sys/kernel/security/integrity/evm/evm_xattrs node, which can be read to obtain the current set of EVM-protected extended attributes or written to in order to add new entries. Extending this list will not change the validity of any existing signatures provided that the file in question does not have any of the additional extended attributes - missing xattrs are skipped when calculating the EVM hash. [1] For instance, a package manager could install information about the package uploader in an additional extended attribute. Local LSM policy could then be associated with that extended attribute in order to restrict the privileges available to packages from less trusted uploaders. Signed-off-by: Matthew Garrett <mjg59@google.com> Reviewed-by: James Morris <james.morris@microsoft.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Matthew Garrett
authored and
Mimi Zohar
commited |
fa516b66a1 | |
Use a list of xattrs rather than an array - this makes it easier to extend the list at runtime. Signed-off-by: Matthew Garrett <mjg59@google.com> Reviewed-by: James Morris <james.morris@microsoft.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Matthew Garrett
authored and
Mimi Zohar
commited |
21af766314 | |
-----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEEcQCq365ubpQNLgrWVeRaWujKfIoFAlr8kO8UHHBhdWxAcGF1 bC1tb29yZS5jb20ACgkQVeRaWujKfIrEtg/5AWIHjkXWgUnwtG+zswaZmzXRCIHi Ixz/R7gDLBstLDORr0mZ19sllo9iQfiFfeKQL+8ewn5CM7vGViASBDrbscsU9QDI imy5PLcJ4iVRcLhpgKCQWrz2kE3lIkK1UlpMTnsHR7wXeLrTKF4bSI/Rdyu6jApB VnyOaeTp3BUKpY5mKURVP+N8jG/MF/kCx94lNlsBnVmPkbI8A8wALyZPZt9D7YRu 3FGRQQ9FM0HTGTplnfvDLoEH97Dk4MRTGaKpHj/kKuqviQDpf/JH6/fk1nQDgHkW Mzj6YbMZddee7TDbhmmyvymaYNqcjbRiOiPBEodoDMHcN9Cba7gvtGA0J4/WSLaz ZdVUdqG1E0P3qsda4/pf1FLDTXOtwmxk0J/fwOixnfnVIvb/mUGzJrxb2HqXQBjH Mycd260b4LmZg1XSkAiBvF6XLanOx3VZHTMg5rsMgM2lZ8o7mH3nWwbEhy9qIuHp gSq63NU/X43pB8dfGVxWvVKild2uA2wKO4Kl6hZ0DW4VdM5423qz67aYy38EIguk cEvTGrFBqZy5ib1XzXSYjMsmHRZQAU2SDI4g6gjSTjK+WnzaUgliFN0EyS7IIK1c us1gYIPa3LrQ7giUsCqyKAcp08tHSAHYw6z1vHS1tlu447EkTX6QzO99dMPtMzWd 69zSUhOtbYamaiA= =SSWK -----END PGP SIGNATURE----- Merge tag 'selinux-pr-20180516' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux Pull SELinux fixes from Paul Moore: "A small pull request to fix a few regressions in the SELinux/SCTP code with applications that call bind() with AF_UNSPEC/INADDR_ANY. The individual commit descriptions have more information, but the commits themselves should be self explanatory" * tag 'selinux-pr-20180516' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: correctly handle sa_family cases in selinux_sctp_bind_connect() selinux: fix address family in bind() and connect() to match address/port selinux: add AF_UNSPEC and INADDR_ANY checks to selinux_socket_bind()
Linus Torvalds
commited |
305bb55212 | |
We want to add additional evm control nodes, and it'd be preferable not to clutter up the securityfs root directory any further. Create a new integrity directory, move the ima directory into it, create an evm directory for the evm attribute and add compatibility symlinks. Signed-off-by: Matthew Garrett <mjg59@google.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Matthew Garrett
authored and
Mimi Zohar
commited |
0c343af806 |