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linux-yocto/security
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Mickaël Salaün 88da52ccd6
landlock: Fix d_parent walk 
The WARN_ON_ONCE() in collect_domain_accesses() can be triggered when
trying to link a root mount point.  This cannot work in practice because
this directory is mounted, but the VFS check is done after the call to
security_path_link().

Do not use source directory's d_parent when the source directory is the
mount point.

Cc: Günther Noack <gnoack@google.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: stable@vger.kernel.org
Reported-by: syzbot+bf4903dc7e12b18ebc87@syzkaller.appspotmail.com
Fixes: b91c3e4ea7 ("landlock: Add support for file reparenting with LANDLOCK_ACCESS_FS_REFER")
Closes: https://lore.kernel.org/r/000000000000553d3f0618198200@google.com
Link: https://lore.kernel.org/r/20240516181935.1645983-2-mic@digikod.net
[mic: Fix commit message]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-31 16:41:52 +02:00
..
apparmor lsm: remove the now superfluous sentinel element from ctl_table array 2024-04-15 15:00:00 -04:00
bpf lsm: mark the lsm_id variables are marked as static 2023-11-12 22:54:42 -05:00
integrity ima: add crypto agility support for template-hash algorithm 2024-04-12 09:59:04 -04:00
keys KEYS: trusted: Do not use WARN when encode fails 2024-05-21 02:35:10 +03:00
landlock landlock: Fix d_parent walk 2024-05-31 16:41:52 +02:00
loadpin hardening fixes for v6.10-rc1 2024-05-24 08:33:44 -07:00
lockdown LSM: Identify modules by more than name 2023-11-12 22:54:42 -05:00
safesetid lsm: mark the lsm_id variables are marked as static 2023-11-12 22:54:42 -05:00
selinux integrity-v6.10 2024-05-15 08:43:02 -07:00
smack integrity-v6.10 2024-05-15 08:43:02 -07:00
tomoyo kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
yama lsm: remove the now superfluous sentinel element from ctl_table array 2024-04-15 15:00:00 -04:00
commoncap.c lsm: mark the lsm_id variables are marked as static 2023-11-12 22:54:42 -05:00
device_cgroup.c
inode.c
Kconfig fortify: drop Clang version check for 12.0.1 or newer 2024-02-22 15:38:54 -08:00
Kconfig.hardening mm: init_mlocked_on_free_v3 2024-04-25 20:56:29 -07:00
lsm_audit.c
lsm_syscalls.c lsm: use 32-bit compatible data types in LSM syscalls 2024-03-14 11:31:26 -04:00
Makefile LSM: syscalls for current process attributes 2023-11-12 22:54:42 -05:00
min_addr.c
security.c security: allow finer granularity in permitting copy-up of security xattrs 2024-04-09 17:14:57 -04:00