gpio: shared: gracefully handle no-device lookup of shared GPIOs

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Summary

CVECVE-2026-99257
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-03 12:17:32 UTC
Updated2026-11-03 12:17:32 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: gpio: shared: gracefully handle no-device lookup of shared GPIOs We use platform lookup tables for shared GPIOs. This mechanism needs a struct device to work so fwnode-based lookup with no device associated currently causes a NULL-pointer deference. Adding this functionality will require a larger rework and it has never worked anyway so add a check that allows the kernel to gracefully handle this situation with an error ahead of implementing that functionality as a new feature.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a060b8c511abb0997381b397e52149a5e3e5259a 7f9eb6aaf9a3ab7fa2b7dcc38660c27db12d4ec1 git Not specified
CNA Linux Linux affected a060b8c511abb0997381b397e52149a5e3e5259a cf73c3fc03c43a8a86fd487c62390b4744eff9ec git Not specified
CNA Linux Linux affected 6.19 Not specified
CNA Linux Linux unaffected 6.19 semver Not specified
CNA Linux Linux unaffected 7.2.13 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cf73c3fc03c43a8a86fd487c62390b4744eff9ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7f9eb6aaf9a3ab7fa2b7dcc38660c27db12d4ec1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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