CVE-2022-49603: ip: Fix data-races around sysctl_ip_fwd_update_priority.

CVE-2022-49603 PUBLISHED CVSS 4.7 MEDIUM

ip: Fix data-races around sysctl_ip_fwd_update_priority.

Reported by linux · Published February 26, 2025

In the Linux kernel, the following vulnerability has been resolved: ip: Fix data-races around sysctl_ip_fwd_update_priority. While reading sysctl_ip_fwd_update_priority, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
linux_kernel	linux	5.18.15, 5.15.58, 5.10.134

Risk scores

CVSS 3.1

4.7

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Vendor	Product	Versions
Linux	Linux	432e05d328921c68c35bfdeff7d7b7400b8e3d1a, 432e05d328921c68c35bfdeff7d7b7400b8e3d1a, 432e05d328921c68c35bfdeff7d7b7400b8e3d1a
Linux	Linux	4.19, 0, 5.10.134
Linux	Linux	0, 5.15.58, 5.18.15
linux	linux_kernel	4.19, 4.19, 4.19

Timeline

Feb 26, 2025 CVE Published
Feb 27, 2025 EPSS Score (30 in total, the first dated here)
Oct 1, 2025 CVE Updated
May 23, 2026 Coalition ESS Score
Jun 2, 2026 Security Advisory

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vulnetix vdb fixes CVE-2022-49603

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References

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