Vulnerability Monitor

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CVE-2025-38112

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.

Published

2025-07-03T09:15:24.960

Last Modified

2025-07-03T15:13:53.147

Status

Awaiting Analysis

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Severity

-

Weaknesses

-

Affected Vendors & Products

-

References