CVE-2026-52904

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-06-09 14:16

Updated : 2026-07-23 08:10

NVD link : CVE-2026-52904

Mitre link : CVE-2026-52904

CVE.ORG link : CVE-2026-52904

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

{"id": "CVE-2026-52904", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "c0bfe34330b5fafdbbc63a7124841711651b96b9", "lessThan": "5edd564ccb002ffc830e7818c1c4a992db774678", "versionType": "git"}, {"status": "affected", "version": "c0bfe34330b5fafdbbc63a7124841711651b96b9", "lessThan": "4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6", "versionType": "git"}, {"status": "affected", "version": "c0bfe34330b5fafdbbc63a7124841711651b96b9", "lessThan": "843c0247cf21364e33bb5a8ffc9af57107d04d05", "versionType": "git"}, {"status": "affected", "version": "c0bfe34330b5fafdbbc63a7124841711651b96b9", "lessThan": "6597ff1d8de3f583be169587efeafd8af134e138", "versionType": "git"}], "programFiles": ["drivers/gpu/drm/nouveau/nouveau_drm.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"status": "unaffected", "version": "0", "lessThan": "6.12", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.86", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.27", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.4", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/gpu/drm/nouveau/nouveau_drm.c"], "defaultStatus": "affected"}]}], "published": "2026-06-09T14:16:44.830", "references": [{"url": "https://git.kernel.org/stable/c/4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5edd564ccb002ffc830e7818c1c4a992db774678", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6597ff1d8de3f583be169587efeafd8af134e138", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/843c0247cf21364e33bb5a8ffc9af57107d04d05", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: fix nvkm_device leak on aperture removal failure\n\nWhen aperture_remove_conflicting_pci_devices() fails during probe, the\nerror path returns directly without unwinding the nvkm_device that was\njust allocated by nvkm_device_pci_new(). This leaks both the device\nwrapper and the pci_enable_device() reference taken inside it.\n\nJump to the existing fail_nvkm label so nvkm_device_del() runs and\nbalances both. The leak was introduced when the intermediate\nnvkm_device_del() between detection and aperture removal was dropped\nin favor of creating the pci device once."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/nouveau: corregir fuga de nvkm_device al fallar la eliminaci\u00f3n de la apertura\n\nCuando aperture_remove_conflicting_pci_devices() falla durante la sonda, la ruta de error regresa directamente sin desenrollar el nvkm_device que acababa de ser asignado por nvkm_device_pci_new(). Esto fuga tanto el envoltorio del dispositivo como la referencia de pci_enable_device() tomada dentro de \u00e9l.\n\nSaltar a la etiqueta fail_nvkm existente para que nvkm_device_del() se ejecute y equilibre ambos. La fuga fue introducida cuando el nvkm_device_del() intermedio entre la detecci\u00f3n y la eliminaci\u00f3n de la apertura fue eliminado en favor de crear el dispositivo pci una sola vez."}], "lastModified": "2026-07-23T08:10:00.137", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A868CB0E-7563-461B-9681-F1CE80B353EE", "versionEndExcluding": "6.12.86", "versionStartIncluding": "6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A10AC84F-C058-47D5-85B4-E6E51A613B74", "versionEndExcluding": "6.18.27", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}