CVE-2026-52904 Details
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.
A memory leak vulnerability has been identified in the Linux kernel's Nouveau graphics driver. This issue arises when the function 'aperture_remove_conflicting_pci_devices()' fails during the probing of PCI devices. The failure causes the function to return immediately without properly releasing a newly allocated 'nvkm_device' object, which leads to a leak of the device wrapper and a reference to the PCI device that was enabled. The vulnerability was introduced by changing the order of operations during PCI device handling, and it can be exploited by causing a probe failure that interrupts the normal device initialization process.
The vulnerability has been fixed in the Linux kernel. Users should upgrade to the latest version of the stable Linux kernel where this issue has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/5edd564ccb002ffc830e7818c1c4a992db774678 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6597ff1d8de3f583be169587efeafd8af134e138 | kernel.org | Patch |
| https://git.kernel.org/stable/c/843c0247cf21364e33bb5a8ffc9af57107d04d05 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.12, < 6.12.86 >= 6.13, < 6.18.27 >= 6.19, < 7.0.4 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 9, 2026 | New CVE Received | kernel.org |