SB2026020270 - Improper locking in Linux kernel counter driver
Published: February 2, 2026
Security Bulletin ID
SB2026020270
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2025-71180)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the interrupt_cnt_probe() function in drivers/counter/interrupt-cnt.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1c5a3175aecf82cd86dfcbef2a23e8b26d8d8e7c
- https://git.kernel.org/stable/c/23f9485510c338476b9735d516c1d4aacb810d46
- https://git.kernel.org/stable/c/425886b1f8304621b3f16632b274357067d5f13f
- https://git.kernel.org/stable/c/49a66829dd3653695e60d7cae13521d131362fcd
- https://git.kernel.org/stable/c/51d2e5d6491447258cb39ff1deb93df15d3c23cb
- https://git.kernel.org/stable/c/ef668c9a2261ec9287faba6e6ef05a98b391aa2b