PT-2025-8536 · Linux+3 · Linux Kernel+3

Kuniyuki Iwashima · Published 2023-05-09 · Updated 2025-04-14 · CVE-2022-49603

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 ip fwd update priority. The problem occurs because the value of sysctl ip fwd update priority can be changed concurrently while it is being read, which can lead to unpredictable behavior. To address this, the use of READ ONCE() is necessary for readers of sysctl ip fwd update priority.

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-2022-49603

OESA-2025-1336

RHSA-2023:2458

RHSA-2023_2458

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 1350

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49603.json · Exploit
• https://cve.org/CVERecord?id=CVE-2022-49603 · Security Note
• https://git.kernel.org/stable/c/7bf9e18d9a5e99e3c83482973557e9f047b051e7 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49350 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49243 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49603 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49603 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49335 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49381 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49490 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47659 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49053 · Security Note
• https://git.kernel.org/stable/c/bcc03369d3277ae075ed421f0c8bf4adb5e65b74 · Patch