Description

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix nvkm_device leak on aperture removal failure When aperture_remove_conflicting_pci_devices() fails during probe, the error path returns directly without unwinding the nvkm_device that was just allocated by nvkm_device_pci_new(). This leaks both the device wrapper and the pci_enable_device() reference taken inside it. Jump to the existing fail_nvkm label so nvkm_device_del() runs and balances both. The leak was introduced when the intermediate nvkm_device_del() between detection and aperture removal was dropped in favor of creating the pci device once.

References 4

• git.kernel.org https://git.kernel.org/stable/c/4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6
• git.kernel.org https://git.kernel.org/stable/c/5edd564ccb002ffc830e7818c1c4a992db774678
• git.kernel.org https://git.kernel.org/stable/c/6597ff1d8de3f583be169587efeafd8af134e138
• git.kernel.org https://git.kernel.org/stable/c/843c0247cf21364e33bb5a8ffc9af57107d04d05

Remediation