CVE-2022-49637: Linux Kernel

Medium severity, CVSS 4.7. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix a data-race around sysctl_fib_sync_mem. While reading sysctl_fib_sync_mem, it can be changed concurrently. So, we need to add READ_ONCE() to avoid a data-race.

Affected products

• Linux Linux Kernel: from 5.2, before 5.4.207 (fixed in 5.4.207); from 5.5, before 5.10.132 (fixed in 5.10.132); from 5.11, before 5.15.56 (fixed in 5.15.56); from 5.16, before 5.18.13 (fixed in 5.18.13); version 5.19 only

Published 2025-02-26. Last modified 2026-06-17.