drm/nouveau: fix nvkm_device leak on aperture removal failure

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Summary

CVECVE-2026-52904
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-09 14:16:44 UTC
Updated2026-06-09 14:16:44 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001560000 probability, percentile 0.051500000 (date 2026-06-16)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c0bfe34330b5fafdbbc63a7124841711651b96b9 5edd564ccb002ffc830e7818c1c4a992db774678 git Not specified
CNA Linux Linux affected c0bfe34330b5fafdbbc63a7124841711651b96b9 4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6 git Not specified
CNA Linux Linux affected c0bfe34330b5fafdbbc63a7124841711651b96b9 843c0247cf21364e33bb5a8ffc9af57107d04d05 git Not specified
CNA Linux Linux affected c0bfe34330b5fafdbbc63a7124841711651b96b9 6597ff1d8de3f583be169587efeafd8af134e138 git Not specified
CNA Linux Linux affected 6.12 Not specified
CNA Linux Linux unaffected 6.12 semver Not specified
CNA Linux Linux unaffected 6.12.86 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.27 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.4 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/843c0247cf21364e33bb5a8ffc9af57107d04d05 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6597ff1d8de3f583be169587efeafd8af134e138 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5edd564ccb002ffc830e7818c1c4a992db774678 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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