media: atomisp: gc2235: fix UAF and memory leak

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Summary

CVECVE-2026-80650
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:50 UTC
Updated2026-08-28 08:16:50 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: media: atomisp: gc2235: fix UAF and memory leak gc2235_probe() handles its error paths incorrectly. If media_entity_pads_init() fails, gc2235_remove() is called, which tears down the subdev and frees dev, but then still falls through to atomisp_register_i2c_module(). This results in use-after-free. If atomisp_register_i2c_module() fails, the media entity and control handler are left initialized and dev is leaked. gc2235_remove() unconditionally calls media_entity_cleanup() and v4l2_ctrl_handler_free(), but these are not initialized at every error path in gc2235_probe(). Replace gc2235_remove() calls in the probe error paths with explicit unwind labels that free only the resources initialized at each point of failure, in reverse order of initialization.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.062770000 (date 2026-08-30)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a49d25364dfb9f8a64037488a39ab1f56c5fa419 fdbb8e55578b4ab647fa58827a9dd8730d7f4add git Not specified
CNA Linux Linux affected a49d25364dfb9f8a64037488a39ab1f56c5fa419 d57e67ea48e4d095052f2b14d8dd7593621f862f git Not specified
CNA Linux Linux affected a49d25364dfb9f8a64037488a39ab1f56c5fa419 f614bf0a64aa1cb7444d152a96798a6bf1d49e1f git Not specified
CNA Linux Linux affected a49d25364dfb9f8a64037488a39ab1f56c5fa419 628f763aee0047ff44974388d6f70f75a763026b git Not specified
CNA Linux Linux affected 4.12 Not specified
CNA Linux Linux unaffected 4.12 semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/628f763aee0047ff44974388d6f70f75a763026b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d57e67ea48e4d095052f2b14d8dd7593621f862f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fdbb8e55578b4ab647fa58827a9dd8730d7f4add 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f614bf0a64aa1cb7444d152a96798a6bf1d49e1f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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