Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix user-after-free from session log off There is racy issue between smb2 session log off and smb2 session setup. It will cause user-after-free from session log off. This add session_lock when setting SMB2_SESSION_EXPIRED and referece count to session struct not to free session while it is being used.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
0626e6641f6b467447c81dd7678a69c66f7746cf to < 0f62358ce85b2d4c949ef1b648be01b29cec667aaffected0626e6641f6b467447c81dd7678a69c66f7746cf to < a9839c37fd813b432988f58a9d9dd59253d3eb2caffected0626e6641f6b467447c81dd7678a69c66f7746cf to < 5511999e9615e4318e9142d23b29bd1597befc08affected0626e6641f6b467447c81dd7678a69c66f7746cf to < ee371898b53a9b9b51c02d22a8c31bfb86d45f0daffected0626e6641f6b467447c81dd7678a69c66f7746cf to < 7aa8804c0b67b3cb263a472d17f2cb50d7f1a930affected
Linux Linux
Default version status: affected
5.15affected0 to < 5.15unaffected5.15.171 to ≤ 5.15.*unaffected6.1.114 to ≤ 6.1.*unaffected6.6.58 to ≤ 6.6.*unaffected6.11.5 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0f62358ce85b2d4c949ef1b648be01b29cec667a ↗
- https://git.kernel.org/stable/c/a9839c37fd813b432988f58a9d9dd59253d3eb2c ↗
- https://git.kernel.org/stable/c/5511999e9615e4318e9142d23b29bd1597befc08 ↗
- https://git.kernel.org/stable/c/ee371898b53a9b9b51c02d22a8c31bfb86d45f0d ↗
- https://git.kernel.org/stable/c/7aa8804c0b67b3cb263a472d17f2cb50d7f1a930 ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗