#VU117734 NULL pointer dereference in Linux kernel - CVE-2025-40042
Published: October 28, 2025
Vulnerability identifier: #VU117734
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-2025-40042
CWE-ID: CWE-476
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 NULL pointer dereference within the uprobe_dispatcher() and uretprobe_dispatcher() functions in kernel/trace/trace_uprobe.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/0fa388ab2c290ef1115ff88ae88e881d0fb2db02
- https://git.kernel.org/stable/c/1a301228c0a8aedc3154fb1a274456f487416b96
- https://git.kernel.org/stable/c/5ebea6561649d30ec7a18fea23d7f76738dae916
- https://git.kernel.org/stable/c/95dd33361061f808d1f68616d69ada639e737cfa
- https://git.kernel.org/stable/c/9cf9aa7b0acfde7545c1a1d912576e9bab28dc6f
- https://git.kernel.org/stable/c/a6e89ada1ff6b70df73f579071ffa6ade8ae7f98