PT-2024-3404 · Linux+2 · Linux Kernel+2

Syzbot · Published 2024-02-21 · Updated 2025-02-03 · CVE-2024-26731

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: The issue is related to a NULL pointer dereference in the sk psock verdict data ready() function. This occurs when sk psock verdict data ready() and sk psock stop verdict() are called concurrently, causing psock->saved data ready to be NULL. The problem is fixed by calling the appropriate data ready function using the sk psock data ready() helper and protecting it from concurrency with sk->sk callback lock.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2024-03676

CVE-2024-26731

DSA-5658-1

SUSE-SU-2024:2135-1

SUSE-SU-2024:2203-1

SUSE-SU-2024:2973-1

SUSE-SU-2025:20008-1

Affected Products

Linux Kernel

Red Os

Suse

References · 1916

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26731.json · Exploit
• https://git.kernel.org/stable/c/9b099ed46dcaf1403c531ff02c3d7400fa37fa26 · Patch
• https://git.kernel.org/stable/c/4588b13abcbd561ec67f5b3c1cb2eff690990a54 · Patch
• https://osv.dev/vulnerability/CVE-2024-26731 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2973-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-26731 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2203-1 · Vendor Advisory
• https://git.kernel.org/stable/c/4cd12c6065dfcdeba10f49949bffcf383b3952d8 · Patch
• https://osv.dev/vulnerability/DSA-5658-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-26731 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-03676 · Security Note
• https://git.kernel.org/stable/c/d61608a4e394f23e0dca099df9eb8e555453d949 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-26731 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2024-26731 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2135-1 · Vendor Advisory