#VU92309 Use-after-free in Linux kernel - CVE-2024-38570
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92309
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-38570
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the gfs2_gl_hash_clear() function in fs/gfs2/super.c, within the init_sbd() function in fs/gfs2/ops_fstype.c, within the gdlm_ast(), gdlm_bast() and gdlm_put_lock() functions in fs/gfs2/lock_dlm.c, within the glock_blocked_by_withdraw() and gfs2_gl_hash_clear() functions in fs/gfs2/glock.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/0636b34b44589b142700ac137b5f69802cfe2e37
- https://git.kernel.org/stable/c/e42e8a24d7f02d28763d16ca7ec5fc6d1f142af0
- https://git.kernel.org/stable/c/501cd8fabf621d10bd4893e37f6ce6c20523c8ca
- https://git.kernel.org/stable/c/d98779e687726d8f8860f1c54b5687eec5f63a73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.33
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.12