Out-of-bounds read in Linux kernel - CVE-2025-39974
Published: October 15, 2025
Vulnerability identifier: #VU117265
CSH Severity: Low
CVSS v4.0: 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-2025-39974
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the osnoise_cpus_write() function in kernel/trace/trace_osnoise.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-39974
Install update from vendor's repository.