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CVE-2022-50760

drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix PCI device refcount leak in amdgpu_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 amdgpu_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 d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before 6611feef35c0c8c4d297b28a7fc6ab3a2c47eca7; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before da7c78ea9e62bb65273d3ff19a3866ec205bfe18; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before 3360125d721c91d697c71201f18f042ff743e936; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before 981024abf5fe605c94d4f906f65d1b3408d628be; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before 7c1ddf7c664b5bc91f14b1bdeaa45520ef1760e4; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before 8f2d2badf8ca5e7e7c30d88840b695c8af7286f3; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before 9d4057d0452243917e12eb19f1599c96f2f05b14; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before a8b54ad7106c0604c4adc4933138b3557739bce0; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 before ca54639c7752edf1304d92ff4d0c049d4efc9ba0
Linux / Linuxaffected 4.2; unaffected 0 before 4.2; 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