What’s Vulnerable › Vulnerabilities

CVE-2022-49639: cipso: Fix data-races around sysctl.

• 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: cipso: Fix data-races around sysctl. While reading cipso sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

Affected products

• Linux kernel: from 2.6.19 before 4.9.324; from 4.10 before 4.14.289; from 4.15 before 4.19.253; from 4.20 before 5.4.207; from 5.5 before 5.10.132; from 5.11 before 5.15.56 — fixed in 4.14.289, 4.19.253, 4.9.324, 5.10.132, 5.15.56, 5.18.13

How to fix

Upgrade to a fixed version: Linux kernel 4.14.289, 4.19.253, 4.9.324, 5.10.132. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/07b0caf8aeb9b82e6ecc6c292a3e47c7fcdb1148
• https://git.kernel.org/stable/c/0e41a0f73ccb9be112a80bde3804a771633caaef
• https://git.kernel.org/stable/c/2764f82bbc158d106693ae3ced3675cf4b963b35
• https://git.kernel.org/stable/c/59e26906b89cc35bb54476498772b45cbc32323f
• https://git.kernel.org/stable/c/c321e99d2725d11f7e6a4ebd9ce752259f0bae81
• https://git.kernel.org/stable/c/ca26ca5e2f3eeb3e6fe699cd6effa3b4b2aa8698
• https://git.kernel.org/stable/c/dd44f04b9214adb68ef5684ae87a81ba03632250
• https://git.kernel.org/stable/c/fe2a35fa2c4f9c8ce5ef970eb927031387f9446a

Get alerted when CVE-2022-49639 or the next vulnerability affects your stack