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Vulnerability record · CVE-2025-71148 · published 23 January 2026

CVE-2025-71148: Linux kernel vulnerability

Linux · Linux Kernel

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.

3.3 CVSS 3.1 Low EPSS 0.13% · top 97.9%
3.3CVSS 3.1 base score
0.13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 Patch

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Source: NIST National Vulnerability Database (record CVE-2025-71148), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.