CVE-2024-26787
kernel: mmc: mmci: stm32: fix DMA API overlapping mappings warning
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 4, 2024
Updated · November 21, 2025
Description
A flaw affecting the STM32 MMC/SD card driver was found in the Linux kernel. This issue is caused by improper handling of Direct Memory Access (DMA) mappings, resulting in overlapping memory regions. This overlap can trigger warnings and lead to potential memory corruption or unstable behavior.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-762 · Mismatched Memory Management Routines