CVE-2023-53622

Description

In the Linux kernel, the following vulnerability has been resolved:gfs2: Fix possible data races in gfs2_show_options()Some fields such as gt_logd_secs of the struct gfs2_tune are accessedwithout holding the lock gt_spin in gfs2_show_options(): val = sdp->sd_tune.gt_logd_secs; if (val != 30) seq_printf(s, ,commit=%d, val);And thus can cause data races when gfs2_show_options() and other functionssuch as gfs2_reconfigure() are concurrently executed: spin_lock(>->gt_spin); gt->gt_logd_secs = newargs->ar_commit;To fix these possible data races, the lock sdp->sd_tune.gt_spin isacquired before accessing the fields of gfs2_tune and released after theseaccesses.Further changes by Andreas:- Dont hold the spin lock over the seq_printf operations.

Risk Information

Base Score

7.0

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.008

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234