net: mana: Use pci_name() for debugfs directory naming

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Summary

CVECVE-2026-53324
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 20:17:25 UTC
Updated2026-06-26 20:17:25 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: mana: Use pci_name() for debugfs directory naming Use pci_name(pdev) for the per-device debugfs directory instead of hardcoded "0" for PFs and pci_slot_name(pdev->slot) for VFs. The previous approach had two issues: 1. pci_slot_name() dereferences pdev->slot, which can be NULL for VFs in environments like generic VFIO passthrough or nested KVM, causing a NULL pointer dereference. 2. Multiple PFs would all use "0", and VFs across different PCI domains or buses could share the same slot name, leading to -EEXIST errors from debugfs_create_dir(). pci_name(pdev) returns the unique BDF address, is always valid, and is unique across the system.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 6607c17c6c5e029da03a90085db22daf518232bf 34dbd7b819544c99c9d96b400fe4db613f40ac4b git Not specified
CNA Linux Linux affected 6607c17c6c5e029da03a90085db22daf518232bf 9211eb97e8f8c28bf9313ab97862d143dbbbef97 git Not specified
CNA Linux Linux affected 6607c17c6c5e029da03a90085db22daf518232bf c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559 git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9211eb97e8f8c28bf9313ab97862d143dbbbef97 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/34dbd7b819544c99c9d96b400fe4db613f40ac4b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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