Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix session use-after-free in multichannel connection There is a race condition between session setup and ksmbd_sessions_deregister. The session can be freed before the connection is added to channel list of session. This patch check reference count of session before freeing it.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 6.1.134 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/3980770cb1470054e6400fd97668665975726737Patch
- https://git.kernel.org/stable/c/596407adb9af1ee75fe7c7529607783d31b66e7fPatch
- https://git.kernel.org/stable/c/7dfbd4c43eed91dd2548a95236908025707a8dfdPatch
- https://git.kernel.org/stable/c/9069939d762138e232a6f79e3e1462682ed6a17dPatch
- https://git.kernel.org/stable/c/94c281721d4ed2d972232414b91d98a6f5bdb16bPatch
- https://git.kernel.org/stable/c/fa4cdb8cbca7d6cb6aa13e4d8d83d1103f6345dbPatch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2025-22040?
CVE-2025-22040 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix session use-after-free in multichannel connection There is a race condition between session setup and ksmbd_sessions_de...
How severe is CVE-2025-22040?
CVE-2025-22040 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-22040?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.