CVE-2024-50286
CRITICAL severity · CVSS 9.8 · Use-after-free
9.8CVSS CRITICAL
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create There is a race condition between ksmbd_smb2_session_create and ksmbd_expire_session. This patch add missing sessions_table_lock while adding/deleting session from global session table.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0a77715db22611df50b178374c51e2ba0d58866e ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0a77715db22611df50b178374c51e2ba0d58866ePatch
- https://git.kernel.org/stable/c/e7a2ad2044377853cf8c59528dac808a08a99c72Patch
- https://git.kernel.org/stable/c/e923503a56b3385b64ae492e3225e4623f560c5bPatch
- https://git.kernel.org/stable/c/f56446ba5378d19e31040b548a14ee9a8f1500eaPatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html