Description
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 products
- Linux / Linux6607c17c6c5e029da03a90085db22daf518232bf – 34dbd7b819544c99c9d96b400fe4db613f40ac4b
- Linux / Linux6607c17c6c5e029da03a90085db22daf518232bf – 9211eb97e8f8c28bf9313ab97862d143dbbbef97
- Linux / Linux6607c17c6c5e029da03a90085db22daf518232bf – c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559
- Linux / Linux6.13 – 6.13
- Linux / Linux0 – 6.13
- Linux / Linux6.18.33 – 6.18.*
- Linux / Linux7.0.10 – 7.0.*
- Linux / Linux7.1 – *