Bug 2383416 (CVE-2025-38401) - CVE-2025-38401 kernel: mtk-sd: Prevent memory corruption from DMA map failure
Summary: CVE-2025-38401 kernel: mtk-sd: Prevent memory corruption from DMA map failure
Keywords:
Status: NEW
Alias: CVE-2025-38401
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-07-25 14:03 UTC by OSIDB Bzimport
Modified: 2025-07-25 18:59 UTC (History)
0 users

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Description OSIDB Bzimport 2025-07-25 14:03:36 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mtk-sd: Prevent memory corruption from DMA map failure

If msdc_prepare_data() fails to map the DMA region, the request is
not prepared for data receiving, but msdc_start_data() proceeds
the DMA with previous setting.
Since this will lead a memory corruption, we have to stop the
request operation soon after the msdc_prepare_data() fails to
prepare it.
Comment 1 Jon Moroney 2025-07-25 18:57:25 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025072510-CVE-2025-38401-789b@gregkh/T
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