CVE-2023-52699 — Improper Locking in Linux
Severity
5.3MEDIUMNVD
OSV7.0OSV6.8OSV5.5
EPSS
0.1%
top 75.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 19
Latest updateSep 18
Description
In the Linux kernel, the following vulnerability has been resolved:
sysv: don't call sb_bread() with pointers_lock held
syzbot is reporting sleep in atomic context in SysV filesystem [1], for
sb_bread() is called with rw_spinlock held.
A "write_lock(&pointers_lock) => read_lock(&pointers_lock) deadlock" bug
and a "sb_bread() with write_lock(&pointers_lock)" bug were introduced by
"Replace BKL for chain locking with sysvfs-private rwlock" in Linux 2.5.12.
Then, "[PATCH] err1-40: sysvfs lockin…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitability: 3.9 | Impact: 1.4
Affected Packages5 packages
▶CVEListV5linux/linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 — 13b33feb2ebddc2b1aa607f553566b18a4af1d76+8
Also affects: Debian Linux 10.0