CVE-2023-53622

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.

• 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 (>= 5.5 < 5.10.192) • linux linux kernel (>= 5.11 < 5.15.128) • linux linux kernel (>= 5.16 < 6.1.47) • linux linux kernel (>= 6.2 < 6.4.12)