Tracker / CVE-2025-38112
CVE-2025-38112
Medium 4.7
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.
Affected products and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel |
| linux | linux_kernel · 4.17 → 5.10.239 |
| linux | linux_kernel · 5.11 → 5.15.186 |
| linux | linux_kernel · 5.16 → 6.1.142 |
| linux | linux_kernel · 6.13 → 6.15.3 |
| linux | linux_kernel · 6.2 → 6.6.94 |
| linux | linux_kernel · 6.7 → 6.12.34 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.