SB2026020257 - Memory leak in Linux kernel dma driver
Published: February 2, 2026
Security Bulletin ID
SB2026020257
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-2025-71186)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the stm32_dmamux_route_allocate() function in drivers/dma/stm32-dmamux.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.