net: dsa: microchip: Fix error path in PTP IRQ setup

Summary

CVECVE-2026-43372
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-08 15:16:48 UTC
Updated2026-05-12 14:10:27 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: Fix error path in PTP IRQ setup If request_threaded_irq() fails during the PTP message IRQ setup, the newly created IRQ mapping is never disposed. Indeed, the ksz_ptp_irq_setup()'s error path only frees the mappings that were successfully set up. Dispose the newly created mapping if the associated request_threaded_irq() fails at setup.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.049210000 (date 2026-05-11)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3b5a6115d6ea45df1ea65dc9b832b23db5d593ba 3704ac6a0d9a78f66a187515a8ca3faedaf01cc5 git Not specified
CNA Linux Linux affected 1ba6da6ca3db76f6a39004fd33a9c990e428515e e80fef36c676c947072dabeb5803ae59d92ba493 git Not specified
CNA Linux Linux affected d0b8fec8ae50525b57139393d0bb1f446e82ff7e 6c58a9fdb0d0e1011aa02455d26d6ebea251979b git Not specified
CNA Linux Linux affected d0b8fec8ae50525b57139393d0bb1f446e82ff7e c2d1d41e0e8ec447d40a5752844fc5fb0b23db27 git Not specified
CNA Linux Linux affected d0b8fec8ae50525b57139393d0bb1f446e82ff7e 99c8c16a4aad0b37293cae213e15957c573cf79b git Not specified
CNA Linux Linux affected ae12e4e0ca231475bcef841c6a6722fa185fd520 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.78 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.19 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.9 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c2d1d41e0e8ec447d40a5752844fc5fb0b23db27 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3704ac6a0d9a78f66a187515a8ca3faedaf01cc5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6c58a9fdb0d0e1011aa02455d26d6ebea251979b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e80fef36c676c947072dabeb5803ae59d92ba493 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/99c8c16a4aad0b37293cae213e15957c573cf79b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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