CVE-2022-48816

SUNRPC: lock against ->sock changing during sysfs read

Description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.

N/A

CVSS

Severity:

EPSS 0.06%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07
https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee

Frequently Asked Questions

What is the severity of CVE-2022-48816?: CVE-2022-48816 has not yet been assigned a CVSS score.
How to fix CVE-2022-48816?: To fix CVE-2022-48816, 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-2022-48816 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-48816 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-2022-48816?: CVE-2022-48816 affects Linux Linux, Linux Linux.

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