CVE-2022-49637

ipv4: Fix a data-race around sysctl_fib_sync_mem.

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix a data-race around sysctl_fib_sync_mem. While reading sysctl_fib_sync_mem, it can be changed concurrently. So, we need to add READ_ONCE() to avoid a data-race.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/7c1acd98fb221dc0d847451b9ab86319f8b9916c patch
https://git.kernel.org/stable/c/418b191d5f223a8cb6cab09eae1f72c04ba6adf2 patch
https://git.kernel.org/stable/c/9be8aac91960ea32fd0e874758c9afee665c57d2 patch
https://git.kernel.org/stable/c/190cd4ff128373271e065afb20f1d2247b3f10c3 patch
https://git.kernel.org/stable/c/73318c4b7dbd0e781aaababff17376b2894745c0 patch

Frequently Asked Questions

What is the severity of CVE-2022-49637?
CVE-2022-49637 has been scored as a medium severity vulnerability.
How to fix CVE-2022-49637?
To fix CVE-2022-49637, 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-2022-49637 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-49637 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-2022-49637?
CVE-2022-49637 affects Linux Linux, Linux Linux.
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