CVE-2025-71148

low-risk
Published 2026-01-23

In the Linux kernel, the following vulnerability has been resolved: net/handshake: restore destructor on submit failure handshake_req_submit() replaces sk->sk_destruct but never restores it when submission fails before the request is hashed. handshake_sk_destruct() then returns early and the original destructor never runs, leaking the socket. Restore sk_destruct on the error path.

Do I need to act?

-
0.02% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Linux

References (4)

Patch https://git.kernel.org/stable/c/6af2a01d65f89e73c1cbb9267f8880d83a88cee4
Patch https://git.kernel.org/stable/c/7b82a1d6ae869533d8bdb0282a3a78faed8e63dd
Patch https://git.kernel.org/stable/c/b225325be7b247c7268e65eea6090db1fc786d1f
Patch https://git.kernel.org/stable/c/cd8cf2be3717137554744233fda051ffc09d1d44
20
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 7/34 · Low