CVE-2022-49967

bpf: Fix a data-race around bpf_jit_limit.

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.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292
https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29

Frequently Asked Questions

What is the severity of CVE-2022-49967?: CVE-2022-49967 has not yet been assigned a CVSS score.
How to fix CVE-2022-49967?: To fix CVE-2022-49967, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49967 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49967 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49967?: CVE-2022-49967 affects Linux Linux, Linux Linux.

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