Description (CNA)
In 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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6607c17c6c5e029da03a90085db22daf518232bf before 34dbd7b819544c99c9d96b400fe4db613f40ac4b; affected 6607c17c6c5e029da03a90085db22daf518232bf before 9211eb97e8f8c28bf9313ab97862d143dbbbef97; affected 6607c17c6c5e029da03a90085db22daf518232bf before c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.