PT-2025-8521 · Linux+3 · Linux Kernel+3

Kuniyuki Iwashima · Published 2022-01-01 · Updated 2026-03-14 · CVE-2022-49588

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 migrate req 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 necessary for readers of sysctl tcp migrate req.

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

BDU:2026-03249

CVE-2022-49588

RHSA-2023:2458

RHSA-2023_2458

Affected Products

Astra Linux

Debian

Linux Kernel

Red Hat

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49588.json · Exploit
• https://cve.org/CVERecord?id=CVE-2022-49588 · Security Note
• https://git.kernel.org/stable/c/4177f545895b1da08447a80692f30617154efa6e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49588 · Security Note
• https://git.kernel.org/stable/c/fcf6c6d8aeffebca66f37b17ef1b57112e5e09c1 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49588 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49588 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49588 · Vendor Advisory
• https://git.kernel.org/stable/c/6e569a11eea20a1ccebc3c4e6366bf0574a449e1 · Patch
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2022-49588 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49588 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49588 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03249 · Security Note
• https://access.redhat.com/security/cve/cve-2022-49588 · Note
• https://git.kernel.org/linus/4177f545895b1da08447a80692f30617154efa6e · Note