spi: ch341: fix memory leaks on probe failures

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Summary

CVECVE-2026-46074
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:28 UTC
Updated2026-05-27 14:48:03 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix memory leaks on probe failures Make sure to deregister the controller, disable pins, and kill and free the RX URB on probe failures to mirror disconnect and avoid memory leaks and use-after-free. Also add an explicit URB kill on disconnect for symmetry (even if that is not strictly required as USB core would have stopped it in the current setup).

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8846739f52afa07e63395c80227dc544f54bd7b1 5c6518633702d7f7b1153e9d8e042af847f11ef3 git Not specified
CNA Linux Linux affected 8846739f52afa07e63395c80227dc544f54bd7b1 ff8a7996dc8bf433efe2126ffdaee5b374a89e30 git Not specified
CNA Linux Linux affected 8846739f52afa07e63395c80227dc544f54bd7b1 9bee2faf9e21c796d0d222c9d84a98f41bd303a0 git Not specified
CNA Linux Linux affected 8846739f52afa07e63395c80227dc544f54bd7b1 b99e3ddb91b499d920e63a2daff8880be68cfe9e git Not specified
CNA Linux Linux affected 6.11 Not specified
CNA Linux Linux unaffected 6.11 semver Not specified
CNA Linux Linux unaffected 6.12.86 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.27 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.4 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5c6518633702d7f7b1153e9d8e042af847f11ef3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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