CVE-2025-38112

Katalog CVE

CVSS 4.7 · Medium EPSS 0,14%

Kerentanan Time-of-check Time-of-use (TOCTOU) Race Condition pada linux kernel, debian linux. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

3 Juli 2025

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

4.7 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

EPSS (30 hari)

0,14% peluang dieksploitasi; lebih tinggi dari 3,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/1b367ba2f94251822577daed031d6b9a9e11ba91 patch
• https://git.kernel.org/stable/c/1e0de7582ceccbdbb227d4e0ddf65732f92526da patch
• https://git.kernel.org/stable/c/2660a544fdc0940bba15f70508a46cf9a6491230 patch
• https://git.kernel.org/stable/c/6fa68d7eab34d448a61aa24ea31e68b3231ed20d patch
• https://git.kernel.org/stable/c/8926a7ef1977a832dd6bf702f1a99303dbf15b15 patch
• https://git.kernel.org/stable/c/c2b26638476baee154920bb587fc94ff1bf04336 patch
• https://git.kernel.org/stable/c/ff55c85a923e043d59d26b20a673a1b4a219c310 patch
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html advisory pihak ketiga