VYPR
Medium severity4.7NVD Advisory· Published Jul 3, 2025· Updated Jun 17, 2026

CVE-2025-38112

CVE-2025-38112

Description

In the Linux kernel, the following vulnerability has been resolved:

net: Fix TOCTOU issue in sk_is_readable()

sk->sk_prot->sock_is_readable is a valid function pointer when sk resides in a sockmap. After the last sk_psock_put() (which usually happens when socket is removed from sockmap), sk->sk_prot gets restored and sk->sk_prot->sock_is_readable becomes NULL.

This makes sk_is_readable() racy, if the value of sk->sk_prot is reloaded after the initial check. Which in turn may lead to a null pointer dereference.

Ensure the function pointer does not turn NULL after the check.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

128

Patches

Vulnerability mechanics

References

9

News mentions

0

No linked articles in our index yet.