VulnerabilityAnalyzed

CVE-2022-49967

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a data-race around bpf_jit_limit.

MEDIUM 4.7EPSS 0.13%

Does this matter?

Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.13% probability · 3th percentile
CISA KEV: Not listed
Weakness: CWE-362
Affected: linux/linux kernel
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

References

https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29Patch
https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292Patch

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.