What’s Vulnerable › Vulnerabilities

CVE-2022-49629: nexthop: Fix data-races around nexthop_compat_mode.

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-362

Description

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

Affected products

• Linux kernel: from 5.8 before 5.10.132; from 5.11 before 5.15.56; from 5.16 before 5.18.13; 5.19-rc1, 5.19-rc2, 5.19-rc3, 5.19-rc4, 5.19-rc5, 5.19-rc6 — fixed in 5.10.132, 5.15.56, 5.18.13

How to fix

Upgrade to a fixed version: Linux kernel 5.10.132, 5.15.56, 5.18.13. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0d17723afea3ae8c9f245c9bbd2ba5945b77e812
• https://git.kernel.org/stable/c/a51040d4b120f3520df64fb0b9c63b31d69bea9b
• https://git.kernel.org/stable/c/ae3054f6fbccc90f14ecd6cf9b2c09a2401c64fd
• https://git.kernel.org/stable/c/bdf00bf24bef9be1ca641a6390fd5487873e0d2e

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