CVE-2022-50520

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

State: Published
Severity: Not scored
Published: Oct 7, 2025
Updated: May 23, 2026
Reserved: Oct 7, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	c61e2775873f603148e8e998a938721b7d222d24 to before 6f28c7f67af4ef9bca580ab67ae2d4511797af56Affected c61e2775873f603148e8e998a938721b7d222d24 to before e738f82e5b1311e8fb3d1409491a6fcce6418fbeAffected c61e2775873f603148e8e998a938721b7d222d24 to before 1079df6acf56f99d86b0081a38c84701412cc90eAffected c61e2775873f603148e8e998a938721b7d222d24 to before 470a77989037c3ab2b08bf2d026d2c0ddc35ff5bAffected c61e2775873f603148e8e998a938721b7d222d24 to before 3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4Affected c61e2775873f603148e8e998a938721b7d222d24 to before 88c6e0995c04b170563b5c894c50a3b2152e18c2Affected c61e2775873f603148e8e998a938721b7d222d24 to before b9decada8749b606fd8b4f04a3d6c74f7983d7bcAffected c61e2775873f603148e8e998a938721b7d222d24 to before a6cffe54064a5f6c2162a85af3c16c6b453eac4eAffected c61e2775873f603148e8e998a938721b7d222d24 to before 725a521a18734f65de05b8d353b5bd0d3ca4c37aAffected 61ebf0a926149cc161131470cf848cb70b3d6fe6Affected 0a1d9a860832a5ca43114cdebf0e8650463cc1f0Affected 5f54f145719f453dccc73304cd427096bf7b806cAffected 063ab9cb6308a0806d623c8d6dda5cb2b3b87fceAffected 3.2.29 to before 3.3Affected 3.4.12 to before 3.5Affected 3.5.5 to before 3.6Affected 3.2.60 to before 3.3Affected
LinuxLinux	3.6Affected before 3.6Not affected 4.9.337 through 4.9.Not affected 4.14.303 through 4.14.Not affected 4.19.270 through 4.19.Not affected 5.4.229 through 5.4.Not affected 5.10.163 through 5.10.Not affected 5.15.86 through 5.15.Not affected 6.0.16 through 6.0.Not affected 6.1.2 through 6.1.Not affected 6.2 and laterNot affected

Product

Versions

LinuxLinux

c61e2775873f603148e8e998a938721b7d222d24 to before 6f28c7f67af4ef9bca580ab67ae2d4511797af56Affected
c61e2775873f603148e8e998a938721b7d222d24 to before e738f82e5b1311e8fb3d1409491a6fcce6418fbeAffected
c61e2775873f603148e8e998a938721b7d222d24 to before 1079df6acf56f99d86b0081a38c84701412cc90eAffected
c61e2775873f603148e8e998a938721b7d222d24 to before 470a77989037c3ab2b08bf2d026d2c0ddc35ff5bAffected
c61e2775873f603148e8e998a938721b7d222d24 to before 3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4Affected
c61e2775873f603148e8e998a938721b7d222d24 to before 88c6e0995c04b170563b5c894c50a3b2152e18c2Affected
c61e2775873f603148e8e998a938721b7d222d24 to before b9decada8749b606fd8b4f04a3d6c74f7983d7bcAffected
c61e2775873f603148e8e998a938721b7d222d24 to before a6cffe54064a5f6c2162a85af3c16c6b453eac4eAffected
c61e2775873f603148e8e998a938721b7d222d24 to before 725a521a18734f65de05b8d353b5bd0d3ca4c37aAffected
61ebf0a926149cc161131470cf848cb70b3d6fe6Affected
0a1d9a860832a5ca43114cdebf0e8650463cc1f0Affected
5f54f145719f453dccc73304cd427096bf7b806cAffected
063ab9cb6308a0806d623c8d6dda5cb2b3b87fceAffected
3.2.29 to before 3.3Affected
3.4.12 to before 3.5Affected
3.5.5 to before 3.6Affected
3.2.60 to before 3.3Affected

LinuxLinux

3.6Affected
before 3.6Not affected
4.9.337 through 4.9.*Not affected
4.14.303 through 4.14.*Not affected
4.19.270 through 4.19.*Not affected
5.4.229 through 5.4.*Not affected
5.10.163 through 5.10.*Not affected
5.15.86 through 5.15.*Not affected
6.0.16 through 6.0.*Not affected
6.1.2 through 6.1.*Not affected
6.2 and laterNot affected

References

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