SB2025091850 - Memory leak in Linux kernel mmc host driver
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091850
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-2022-50353)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the wmt_mci_probe() function in drivers/mmc/host/wmt-sdmmc.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/29276d56f6ed138db0f38cd31aedc0b725c8c76c
- https://git.kernel.org/stable/c/58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67
- https://git.kernel.org/stable/c/70b0620afab3c69d95a7e2dd7ceff162a21c4009
- https://git.kernel.org/stable/c/9bedf64dda84b29151e41591d8ded9ff0e6d336a
- https://git.kernel.org/stable/c/b40ac3b696a9c84b36211ef0c3f5a422650c101b
- https://git.kernel.org/stable/c/c7a328cea791cc2769b6417943939420913b4a46
- https://git.kernel.org/stable/c/eb7a2d516d4fbd165c07877a20feccb047342b1f
- https://git.kernel.org/stable/c/ecd6f77af3478f5223aa4011642a891b7dc91228
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270