CVE-2025-22041
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel. session that is freed through the global session table can be accessed again through ->sessions of connection.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.68% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/15a9605f8d69dc85005b1a00c31a050b8625e1aaPatch
- https://git.kernel.org/stable/c/33cc29e221df7a3085ae413e8c26c4e81a151153Patch
- https://git.kernel.org/stable/c/8ed0e9d2f410f63525afb8351181eea36c80bcf1Patch
- https://git.kernel.org/stable/c/a8a8ae303a8395cbac270b5b404d85df6ec788f8Patch
- https://git.kernel.org/stable/c/ca042cc0e4f9e0d2c8f86dd67e4b22f30a516a9bPatch
- https://git.kernel.org/stable/c/f0eb3f575138b816da74697bd506682574742fcdPatch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.