PT-2025-8534 · Linux+2 · Linux Kernel+2

Kuniyuki Iwashima · Published 2023-05-09 · Updated 2025-03-11 · CVE-2022-49601

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 around sysctl tcp fwmark accept in the Linux kernel. This occurs because sysctl tcp fwmark accept can be changed concurrently while being read, requiring the use of READ ONCE() to ensure thread safety.

Recommendations To resolve this issue, apply the fix that adds READ ONCE() to the reader of sysctl tcp fwmark accept. 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-2022-49601

RHSA-2023:2458

RHSA-2023_2458

Affected Products

Astra Linux

Linux Kernel

Red Hat

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49601.json · Exploit
• https://git.kernel.org/stable/c/bf3134feffe61b7a0e21f60a04743f8da0958b53 · Patch
• https://git.kernel.org/stable/c/45fc82706a97242539d6b841ddd7a077ec20757b · Patch
• https://git.kernel.org/stable/c/a7386602a2fe2f6192477e8ede291a815da09d81 · Patch
• https://ubuntu.com/security/CVE-2022-49601 · Vendor Advisory
• https://git.kernel.org/stable/c/526d8cf8824f613c72dba2155542295e70135f62 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49601 · Vendor Advisory
• https://git.kernel.org/stable/c/abf70de2ec026ae8d7da4e79bec61888a880e00b · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49601 · Vendor Advisory
• https://git.kernel.org/stable/c/d4f65615db7fca3df9f7e79eadf937e6ddb03c54 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49601 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49601 · Vendor Advisory
• https://git.kernel.org/stable/c/1a0008f9df59451d0a17806c1ee1a19857032fa8 · Patch
• https://cve.org/CVERecord?id=CVE-2022-49601 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49601 · Security Note