CVE-2025-21967
HIGH severity · CVSS 8.8 · Use-after-free
8.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_free_work_struct ->interim_entry of ksmbd_work could be deleted after oplock is freed. We don't need to manage it with linked list. The interim request could be immediately sent whenever a oplock break wait is needed.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:L/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/62746ae3f5414244a96293e3b017be637b641280 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/62746ae3f5414244a96293e3b017be637b641280Patch
- https://git.kernel.org/stable/c/bb39ed47065455604729404729d9116868638d31Patch
- https://git.kernel.org/stable/c/eb51f6f59d19b92f6fe84d3873f958495ab32f0aPatch
- https://git.kernel.org/stable/c/fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3Patch