CVE-2022-50760

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 6611feef35c0c8c4d297b28a7fc6ab3a2c47eca7affected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < da7c78ea9e62bb65273d3ff19a3866ec205bfe18affected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 3360125d721c91d697c71201f18f042ff743e936affected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 981024abf5fe605c94d4f906f65d1b3408d628beaffected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 7c1ddf7c664b5bc91f14b1bdeaa45520ef1760e4affected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 8f2d2badf8ca5e7e7c30d88840b695c8af7286f3affected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 9d4057d0452243917e12eb19f1599c96f2f05b14affected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < a8b54ad7106c0604c4adc4933138b3557739bce0affected
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 < ca54639c7752edf1304d92ff4d0c049d4efc9ba0affected
LinuxLinux4.2affected
LinuxLinux0 < 4.2unaffected
LinuxLinux4.9.337 <= 4.9.*unaffected
LinuxLinux4.14.303 <= 4.14.*unaffected
LinuxLinux4.19.270 <= 4.19.*unaffected
LinuxLinux5.4.229 <= 5.4.*unaffected
LinuxLinux5.10.163 <= 5.10.*unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

References