drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios()

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios() As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL. If we break the loop in radeon_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.

Timeline

1. Oct 7, 2025, 3:19 PM UTCCVE published
2. May 23, 2026, 3:24 PM UTCRecord last updated

Affected versions

• Linux Linux

  From 3.2.29 · fixed in 3.3; From 3.4.12 · fixed in 3.5; From 3.5.5 · fixed in 3.6; From 3.2.60 · fixed in 3.3

• Linux Linux

  3.6

References 9