Bug 2419910 (CVE-2023-53748)

Summary: CVE-2023-53748 kernel: media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-12-08 07:08:00 UTC 
In the Linux kernel, the following vulnerability has been resolved:

media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup

variable *nplanes is provided by user via system call argument. The
possible value of q_data->fmt->num_planes is 1-3, while the value
of *nplanes can be 1-8. The array access by index i can cause array
out-of-bounds.

Fix this bug by checking *nplanes against the array size.
Comment 1 Jon Moroney 2025-12-08 20:26:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120842-CVE-2023-53748-4905@gregkh/T