IT

Tracker / CVE-2023-53622

CVE-2023-53622

High 7.0

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 accessed without 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 functions such as gfs2_reconfigure() are concurrently executed: spin_lock(&gt->gt_spin); gt->gt_logd_secs = newargs->ar_commit; To fix these possible data races, the lock sdp->sd_tune.gt_spin is acquired before accessing the fields of gfs2_tune and released after these accesses. Further changes by Andreas: - Don't hold the spin lock over the seq_printf operations.

Affected products and versions

linux linux_kernel · 2.6.31 → 4.14.324
linux linux_kernel · 4.15 → 4.19.293
linux linux_kernel · 4.20 → 5.4.255
linux linux_kernel · 5.11 → 5.15.128
linux linux_kernel · 5.16 → 6.1.47
linux linux_kernel · 5.5 → 5.10.192
linux linux_kernel · 6.2 → 6.4.12

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References