github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-08-18 21:38:30 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
464c258aa4
linux/security
History
Ondrej Mosnacek 464c258aa4 selinux: fix empty write to keycreate file 
When sid == 0 (we are resetting keycreate_sid to the default value), we
should skip the KEY__CREATE check.

Before this patch, doing a zero-sized write to /proc/self/keycreate
would check if the current task can create unlabeled keys (which would
usually fail with -EACCESS and generate an AVC). Now it skips the check
and correctly sets the task's keycreate_sid to 0.

Bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1719067

Tested using the reproducer from the report above.

Fixes: 4eb582cf1f ("[PATCH] keys: add a way to store the appropriate context for newly-created keys")
Reported-by: Kir Kolyshkin <kir@sacred.ru>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2019-06-12 16:04:05 -04:00
..
apparmor Merge branch 'work.icache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-05-07 10:57:05 -07:00
integrity audit/stable-5.2 PR 20190507 2019-05-07 19:06:04 -07:00
keys Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-05-07 08:39:54 -07:00
loadpin LoadPin: Initialize as ordered LSM 2019-01-08 13:18:43 -08:00
safesetid LSM: fix return value check in safesetid_init_securityfs() 2019-02-12 10:59:22 -08:00
selinux selinux: fix empty write to keycreate file 2019-06-12 16:04:05 -04:00
smack Smack: Fix kbuild reported build error 2019-04-30 14:13:32 -07:00
tomoyo tomoyo: Don't emit WARNING: string while fuzzing testing. 2019-05-10 14:58:35 -07:00
yama Yama: mark function as static 2019-04-10 10:36:45 -07:00
commoncap.c audit/stable-5.1 PR 20190305 2019-03-07 12:20:11 -08:00
device_cgroup.c device_cgroup: fix RCU imbalance in error case 2019-03-19 10:46:15 -07:00
inode.c securityfs: switch to ->free_inode() 2019-05-01 22:43:26 -04:00
Kconfig compiler-based memory initialization 2019-05-07 12:44:49 -07:00
Kconfig.hardening security: Implement Clang's stack initialization 2019-04-24 14:00:56 -07:00
lsm_audit.c missing barriers in some of unix_sock ->addr and ->path accesses 2019-02-20 20:06:28 -08:00
Makefile LSM: add SafeSetID module that gates setid calls 2019-01-25 11:22:45 -08:00
min_addr.c
security.c Merge branch 'work.mount-syscalls' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-05-07 20:17:51 -07:00