SB2025031272 - Integer underflow in Linux kernel mm
Published: March 12, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025031272
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer underflow (CVE-ID: CVE-2025-21860)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the zswap_store_page() and zswap_store() functions in mm/zswap.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.