PCI: endpoint: Add missing NULL check for alloc_workqueue()

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Summary

CVECVE-2025-71313
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-03 18:16:19 UTC
Updated2026-06-05 20:51:20 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Add missing NULL check for alloc_workqueue() alloc_workqueue() can return NULL on memory allocation failure. Without proper error checking, this may lead to a NULL pointer dereference when queue_work() is later called with the NULL workqueue pointer in epf_ntb_epc_init(). Add a NULL check immediately after alloc_workqueue() and return -ENOMEM on failure to prevent the driver from loading with an invalid workqueue pointer.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.051530000 (date 2026-06-05)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 314eab6740bcda504ef978be599f805de05ce6de git Not specified
CNA Linux Linux affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 03f336a869b3a3f119d3ae52ac9723739c7fb7b6 git Not specified
CNA Linux Linux affected 5.12 Not specified
CNA Linux Linux unaffected 5.12 semver Not specified
CNA Linux Linux unaffected 6.19.4 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/03f336a869b3a3f119d3ae52ac9723739c7fb7b6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/314eab6740bcda504ef978be599f805de05ce6de 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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