CVE-2023-52760 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV8.4OSV5.5OSV5.3
EPSS
0.0%
top 94.80%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 21
Latest updateSep 18
Description
In the Linux kernel, the following vulnerability has been resolved:
gfs2: Fix slab-use-after-free in gfs2_qd_dealloc
In gfs2_put_super(), whether withdrawn or not, the quota should
be cleaned up by gfs2_quota_cleanup().
Otherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu
callback) has run for all gfs2_quota_data objects, resulting in
use-after-free.
Also, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called
by gfs2_make_fs_ro(), so in gfs2_put_super(), after cal…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages8 packages
▶CVEListV5linux/linuxf66af88e33212b57ea86da2c5d66c0d9d5c46344 — 08a28272faa750d4357ea2cb48d2baefd778ea81+2