CVE-2022-50520

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

MEDIUM

5.5

CVSS Score

Published: October 7, 2025 at 03:19 PM UTC

Updated: June 17, 2026 at 05:23 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v ≥ 3.2.29v ≥ 3.2.60v ≥ 3.4.12v ≥ 3.5.53.2.29 ≤ v < 3.33.2.60 ≤ v < 3.33.4.12 ≤ v < 3.53.5.5 ≤ v < 3.63.6 ≤ v < 4.14.3033.6 ≤ v < 4.19.2703.6 ≤ v < 4.9.3373.6 ≤ v < 5.10.1633.6 ≤ v < 5.15.863.6 ≤ v < 5.4.2293.6 ≤ v < 6.0.163.6 ≤ v < 6.1.23.6 ≤ v < 6.23.6.1 ≤ v < 4.9.3374.10 ≤ v < 4.14.3034.15 ≤ v < 4.19.2704.20 ≤ v < 5.4.2295.11 ≤ v < 5.15.865.16 ≤ v < 6.0.165.5 ≤ v < 5.10.1636.1 ≤ v < 6.1.20a1d9a860832a5ca43114cdebf0e8650463cc1f03.2.29 3.2.60 3.4.12 3.5.5 3.6 3.6 rc3 3.6 rc4 3.6 rc5 3.6 rc6 3.6 rc75f54f145719f453dccc73304cd427096bf7b806c61ebf0a926149cc161131470cf848cb70b3d6fe663ab9cb6308a806d623c8d6dda5cb2b3b87fcec61e2775873f603148e8e998a938721b7d222d24

Vendor states this is fixed in 1079df6acf56f99d86b0081a38c84701412cc90e (fixed)

Vendor states this is fixed in 3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4 (fixed)

Vendor states this is fixed in 470a77989037c3ab2b08bf2d026d2c0ddc35ff5b (fixed)

Vendor states this is fixed in 6f28c7f67af4ef9bca580ab67ae2d4511797af56 (fixed)

Vendor states this is fixed in 725a521a18734f65de05b8d353b5bd0d3ca4c37a (fixed)

Vendor states this is fixed in 88c6e0995c04b170563b5c894c50a3b2152e18c2 (fixed)

Vendor states this is fixed in a6cffe54064a5f6c2162a85af3c16c6b453eac4e (fixed)

Vendor states this is fixed in b9decada8749b606fd8b4f04a3d6c74f7983d7bc (fixed)

Vendor states this is fixed in e738f82e5b1311e8fb3d1409491a6fcce6418fbe (fixed)

Affected range stops below 3.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.5, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 3.6 (unaffected)