ksmbd: fix user-after-free from session log off
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0f62358ce85b2d4c949ef1b648be01b29cec667ahttps://git.kernel.org/stable/c/5511999e9615e4318e9142d23b29bd1597befc08https://git.kernel.org/stable/c/7aa8804c0b67b3cb263a472d17f2cb50d7f1a930https://git.kernel.org/stable/c/a9839c37fd813b432988f58a9d9dd59253d3eb2chttps://git.kernel.org/stable/c/ee371898b53a9b9b51c02d22a8c31bfb86d45f0dhttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html