CVE-2023-52704

MEDIUM

Linux Kernel 6.1-6.1.12 - Denial of Service via call_usermodehelper_exec() SIGKILL Race

Title source: llm

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.

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/7f9f6c54da876b3f0bece2b569456ceb96965ed7

Patch

https://git.kernel.org/stable/c/eedeb787ebb53de5c5dcf7b7b39d01bf1b0f037d

Scores

CVSS v3 5.5

EPSS 0.0021

EPSS Percentile 10.7%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

Status published

Products (9)

linux/Kernel 6.1.0 - 6.1.13linux

Linux/Linux < 6.1

Linux/Linux 6.1

Linux/Linux 6.1.13 - 6.1.*

Linux/Linux 6.2

Linux/Linux f5d39b020809146cc28e6e73369bf8065e0310aa - 7f9f6c54da876b3f0bece2b569456ceb96965ed7

Linux/Linux f5d39b020809146cc28e6e73369bf8065e0310aa - eedeb787ebb53de5c5dcf7b7b39d01bf1b0f037d

linux/linux_kernel 6.2 rc1 (8 CPE variants)

linux/linux_kernel 6.1 - 6.1.13

Published May 21, 2024

Tracked Since Feb 18, 2026