CVE-2023-52704

freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL

Description

In the Linux kernel, the following vulnerability has been resolved: freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL Tetsuo-San noted that commit f5d39b020809 ("freezer,sched: Rewrite core freezer logic") broke call_usermodehelper_exec() for the KILLABLE case. Specifically it was missed that the second, unconditional, wait_for_completion() was not optional and ensures the on-stack completion is unused before going out-of-scope.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.07%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/7f9f6c54da876b3f0bece2b569456ceb96965ed7
https://git.kernel.org/stable/c/eedeb787ebb53de5c5dcf7b7b39d01bf1b0f037d

Frequently Asked Questions

What is the severity of CVE-2023-52704?: CVE-2023-52704 has been scored as a medium severity vulnerability.
How to fix CVE-2023-52704?: To fix CVE-2023-52704, 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-2023-52704 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-52704 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-2023-52704?: CVE-2023-52704 affects Linux Linux, Linux Linux.

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