i3c: master: Do not treat master device as a duplicate target

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Summary

CVECVE-2026-93199
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:18:16 UTC
Updated2026-09-17 17:18:16 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: i3c: master: Do not treat master device as a duplicate target i3c_master_search_i3c_dev_duplicate() searches the bus for another I3C device with the same PID as the reference device. The search can match master->this, causing the controller itself to be returned as a duplicate. Since the controller is not a target device, it cannot be a duplicate of one. Exclude master->this from matching so that the function only returns real duplicate target devices.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 d0cc00957292e353ad46039034cd8f82fc4f8057 git Not specified
CNA Linux Linux affected 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 150e71808d3715a0deefbb189c780d03fdbdc735 git Not specified
CNA Linux Linux affected 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 4dc1b3eeba7991905a5b5b8129ebea51be7d87b7 git Not specified
CNA Linux Linux affected 5.0 Not specified
CNA Linux Linux unaffected 5.0 semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/150e71808d3715a0deefbb189c780d03fdbdc735 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4dc1b3eeba7991905a5b5b8129ebea51be7d87b7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d0cc00957292e353ad46039034cd8f82fc4f8057 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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