SB2025100410 - Memory leak in Linux kernel block zram driver
Published: October 4, 2025
Security Bulletin ID
SB2025100410
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) Memory leak (CVE-ID: CVE-2025-39941)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the write_same_filled_page(), write_incompressible_page() and zram_write_page() functions in drivers/block/zram/zram_drv.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.