SB2026020541 - Off-by-one in Linux kernel w1 slaves driver
Published: February 5, 2026
Security Bulletin ID
SB2026020541
CSH 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 vulnerability.
1) Off-by-one (CVE-ID: CVE-2025-71197)
CWE-ID: CWE-193 - Off-by-one Error
CVSSv4: 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
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an off-by-one error within the alarms_store() function in drivers/w1/slaves/w1_therm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.