CVE-2024-50210

medium

Description

In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the "ts" is not changed after that. [[email protected]: fixed commit message typo]

References

https://git.kernel.org/stable/c/e56e0ec1b79f5a6272c6e78b36e9d593aa0449af

https://git.kernel.org/stable/c/d005400262ddaf1ca1666bbcd1acf42fe81d57ce

https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943

https://git.kernel.org/stable/c/b27330128eca25179637c1816d5a72d6cc408c66

https://git.kernel.org/stable/c/a8219446b95a859488feaade674d13f9efacfa32

https://git.kernel.org/stable/c/6e62807c7fbb3c758d233018caf94dfea9c65dbd

https://git.kernel.org/stable/c/5f063bbf1ee6b01611c016b54e050a41506eb794

https://git.kernel.org/stable/c/1ba33b327c3f88a7baee598979d73ab5b44d41cc

Details

Source: Mitre, NVD

Published: 2024-11-08

Updated: 2024-11-19

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium