Bug 2487003 (CVE-2026-52904)

Summary: CVE-2026-52904 kernel: drm/nouveau: fix nvkm_device leak on aperture removal failure
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's `drm/nouveau` component. This issue arises during device initialization when a specific function fails to properly release allocated memory resources. This memory leak can be triggered by a local user, potentially leading to system instability or a Denial of Service (DoS) due to resource exhaustion.
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Description OSIDB Bzimport 2026-06-09 14:01:45 UTC 
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.
Comment 1 Keith Grant 2026-06-09 16:31:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026060913-CVE-2026-52904-cdce@gregkh/T