PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown

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Summary

CVECVE-2026-46009
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:18 UTC
Updated2026-05-27 14:48:03 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper. Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.051640000 (date 2026-05-29)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 72099f015d3c77bf2eb703d1aab113bd7a60915a git Not specified
CNA Linux Linux affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 756ca5e7ed22d9045bb4de4c981f9149278d5cd3 git Not specified
CNA Linux Linux affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 65fc57c8b8f0b31be62be291cb1bb01755cec85d git Not specified
CNA Linux Linux affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 e813c95e4c8edd31599081e6356e20ada30e266d git Not specified
CNA Linux Linux affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 3446beddba450c8d6f9aca2f028712ac527fead3 git Not specified
CNA Linux Linux affected 5.12 Not specified
CNA Linux Linux unaffected 5.12 semver Not specified
CNA Linux Linux unaffected 6.6.140 6.6.* 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/756ca5e7ed22d9045bb4de4c981f9149278d5cd3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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