CVE-2022-49967

MediumCVSS 4.7/10Last modified Nov 5, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix a data-race around bpf_jit_limit.

While reading bpf_jit_limit, it can be changed concurrently via sysctl, WRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit is long, so we need to add a paired READ_ONCE() to avoid load-tearing.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-362

Affected software

VendorProductVersions
LinuxLinux>= ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3, < ba632ad0bacb13197a8f38e7526448974e87f292; >= ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3, < 0947ae1121083d363d522ff7518ee72b55bd8d29; c98446e1bab6253ddce7144cc2a91c400a323839; a1fe647042affe713a17243cd10e9b25f3d83948; 43caa29c99db5a41b204e8ced01b00e151335ca8; >= 4.9.190, < 4.10; >= 4.14.140, < 4.15; >= 4.19.47, < 4.20
LinuxLinux4.20

References

Timeline

Published
Jun 18, 2025
Last modified
Nov 5, 2026
NVD status
Analyzed

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CVE-2022-49967: Medium severity, CVSS 4.7 | Vulnix