PT-2025-8532 · Linux+2 · Linux Kernel+2

Kuniyuki Iwashima · Published 2023-05-09 · Updated 2025-02-27 · CVE-2022-49599

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

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

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

Description A data-race issue exists in the Linux kernel related to the sysctl tcp l3mdev accept variable. This issue occurs because the variable can be changed concurrently while being read, which may lead to unpredictable behavior. To address this, the use of READ ONCE() is recommended for readers of sysctl tcp l3mdev accept.

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

Exploit

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2022-49599

RHSA-2023:2458

RHSA-2023_2458

Affected Products

Astra Linux

Linux Kernel

Red Hat

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49599.json · Exploit
• https://git.kernel.org/stable/c/7d38d86b818104cf88961f3aebea34da89364a8e · Patch
• https://ubuntu.com/security/CVE-2022-49599 · Vendor Advisory
• https://git.kernel.org/stable/c/9ba9cd43b5776c27d25e5a32dde9e80bdeb1c6a1 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49599 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49599 · Security Note
• https://osv.dev/vulnerability/CVE-2022-49599 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49599 · Vendor Advisory
• https://git.kernel.org/stable/c/08a75f10679470552a3a443f9aefd1399604d31d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49599 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49599 · Vendor Advisory
• https://git.kernel.org/stable/c/1d9c81833dec46ccb52a1d0db970fefb7c4fa071 · Patch
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://twitter.com/CVEnew/status/1894867739959009466 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2025022611-CVE-2022-49599-4a64@gregkh/T · Note