Bug 2396128 (CVE-2023-53336)

Summary: CVE-2023-53336 kernel: media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings
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 2025-09-17 15:02:57 UTC 
In the Linux kernel, the following vulnerability has been resolved:

media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings

When ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() run
sensor->adev is not set yet.

So if either of the dev_warn() calls about unknown values are hit this
will lead to a NULL pointer deref.

Set sensor->adev earlier, with a borrowed ref to avoid making unrolling
on errors harder, to fix this.
Comment 1 Jon Moroney 2025-09-17 18:13:54 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091718-CVE-2023-53336-0abd@gregkh/T