Bug 2540481 (CVE-2026-97507) - CVE-2026-97507 kernel: media: dm1105: fix missing error check for dma_alloc_coherent
Summary: CVE-2026-97507 kernel: media: dm1105: fix missing error check for dma_alloc_c...
Keywords:
Status: NEW
Alias: CVE-2026-97507
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: 2026-09-24 16:59 UTC by OSIDB Bzimport
Modified: 2026-09-28 15:45 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-24 16:59:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

media: dm1105: fix missing error check for dma_alloc_coherent

The return value of dm1105_dma_map(), which handles DMA memory allocation,
is ignored in dm1105_hw_init(). If dma_alloc_coherent() fails, the driver
will proceed using a NULL pointer for DMA transfers, leading to a kernel
oops or invalid hardware access.

Fix this by checking the return value and propagating -ENOMEM on failure.
Comment 1 gkamathe 2026-09-28 15:40:14 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97507.mbox
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