CVE-2025-71148

LOW

Linux Kernel 6.4-6.6.119, 6.7-6.12.63, 6.13-6.18.2 - Resource Leak via Handshake Request Submission Failure

Title source: llm

Description

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.

References (4)

Core 4

Core References

Patch

https://git.kernel.org/stable/c/cd8cf2be3717137554744233fda051ffc09d1d44

Patch

https://git.kernel.org/stable/c/7b82a1d6ae869533d8bdb0282a3a78faed8e63dd

Patch

https://git.kernel.org/stable/c/b225325be7b247c7268e65eea6090db1fc786d1f

Patch

https://git.kernel.org/stable/c/6af2a01d65f89e73c1cbb9267f8880d83a88cee4

Scores

CVSS v3 3.3

EPSS 0.0002

EPSS Percentile 6.3%

Attack Vector LOCAL

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

Details

Status published

Products (15)

linux/Kernel 6.13.0 - 6.18.3linux

linux/Kernel 6.4.0 - 6.6.120linux

linux/Kernel 6.7.0 - 6.12.64linux

Linux/Linux < 6.4

Linux/Linux 3b3009ea8abb713b022d94fba95ec270cf6e7eae - 6af2a01d65f89e73c1cbb9267f8880d83a88cee4

Linux/Linux 3b3009ea8abb713b022d94fba95ec270cf6e7eae - 7b82a1d6ae869533d8bdb0282a3a78faed8e63dd

Linux/Linux 3b3009ea8abb713b022d94fba95ec270cf6e7eae - b225325be7b247c7268e65eea6090db1fc786d1f

Linux/Linux 3b3009ea8abb713b022d94fba95ec270cf6e7eae - cd8cf2be3717137554744233fda051ffc09d1d44

Linux/Linux 6.12.64 - 6.12.*

Linux/Linux 6.18.3 - 6.18.*

... and 5 more

Published Jan 23, 2026

Tracked Since Feb 18, 2026