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CVE-2022-50520

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected c61e2775873f603148e8e998a938721b7d222d24 before 6f28c7f67af4ef9bca580ab67ae2d4511797af56; affected c61e2775873f603148e8e998a938721b7d222d24 before e738f82e5b1311e8fb3d1409491a6fcce6418fbe; affected c61e2775873f603148e8e998a938721b7d222d24 before 1079df6acf56f99d86b0081a38c84701412cc90e; affected c61e2775873f603148e8e998a938721b7d222d24 before 470a77989037c3ab2b08bf2d026d2c0ddc35ff5b; affected c61e2775873f603148e8e998a938721b7d222d24 before 3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4; affected c61e2775873f603148e8e998a938721b7d222d24 before 88c6e0995c04b170563b5c894c50a3b2152e18c2; affected c61e2775873f603148e8e998a938721b7d222d24 before b9decada8749b606fd8b4f04a3d6c74f7983d7bc; affected c61e2775873f603148e8e998a938721b7d222d24 before a6cffe54064a5f6c2162a85af3c16c6b453eac4e; affected c61e2775873f603148e8e998a938721b7d222d24 before 725a521a18734f65de05b8d353b5bd0d3ca4c37a; affected 61ebf0a926149cc161131470cf848cb70b3d6fe6; affected 0a1d9a860832a5ca43114cdebf0e8650463cc1f0; affected 5f54f145719f453dccc73304cd427096bf7b806c; affected 063ab9cb6308a0806d623c8d6dda5cb2b3b87fce; affected 3.2.29 before 3.3; affected 3.4.12 before 3.5; affected 3.5.5 before 3.6; affected 3.2.60 before 3.3
Linux / Linuxaffected 3.6; unaffected 0 before 3.6; unaffected 4.9.337 through 4.9.*; unaffected 4.14.303 through 4.14.*; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through *

CWE

No CWE identifiers supplied.

References