CVE-2025-21967

HIGH7.8

ksmbd: fix use-after-free in ksmbd_free_work_struct

Published Apr 1, 2025

Modified 8 months ago

No fix available

Details

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.

References

WEBhttps://git.kernel.org/stable/c/62746ae3f5414244a96293e3b017be637b641280 WEBhttps://git.kernel.org/stable/c/bb39ed47065455604729404729d9116868638d31 WEBhttps://git.kernel.org/stable/c/eb51f6f59d19b92f6fe84d3873f958495ab32f0a WEBhttps://git.kernel.org/stable/c/fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-21967

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

7.8/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Ecosystems

Timeline

PublishedApr 1, 2025

ModifiedMay 4, 2025