SB2025072783 - Buffer overflow in Linux kernel mmc host driver
Published: July 27, 2025
Security Bulletin ID
SB2025072783
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) Buffer overflow (CVE-ID: CVE-2025-38401)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the msdc_prepare_data() and msdc_ops_request() functions in drivers/mmc/host/mtk-sd.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79
- https://git.kernel.org/stable/c/48bf4f3dfcdab02b22581d8e350a2d23130b72c0
- https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc
- https://git.kernel.org/stable/c/61cdd663564674ea21ceb50aa9d3697cbe9e45f9
- https://git.kernel.org/stable/c/63e8953f16acdcb23e2d4dd8a566d3c34df3e200
- https://git.kernel.org/stable/c/a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c
- https://git.kernel.org/stable/c/d54771571f74a82c59830a32e76af78a8e57ac69
- https://git.kernel.org/stable/c/f5de469990f19569627ea0dd56536ff5a13beaa3