#VU115992 Improper locking in Linux kernel - CVE-2025-39843
Published: September 22, 2025
Vulnerability identifier: #VU115992
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39843
CWE-ID: CWE-667
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 perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the get_track(), set_track_update(), free_debug_processing(), ___slab_alloc() and free_to_partial_list() functions in mm/slub.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/243b705a90ed8449f561a271cf251fd2e939f3db
- https://git.kernel.org/stable/c/522ffe298627cfe72539d72167c2e20e72b5e856
- https://git.kernel.org/stable/c/850470a8413a8a78e772c4f6bd9fe81ec6bd5b0f
- https://git.kernel.org/stable/c/994b03b9605d36d814c611385fbf90ca6db20aa8
- https://git.kernel.org/stable/c/eb3240ffd243bfb8b1e9dc568d484ecf9fd660ab