CVE-2026-52904: drm/nouveau: fix nvkm_device leak on aperture removal failure
Vulnerability summary
CVE-2026-52904 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.4% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 15 · Related 15Timeline
- 09-06-2026PublishedVulnerability first disclosed.
- 14-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.11%
Chance of exploitation in the next 30 days
Percentile
1%
Versus all other CVEs
30-day change
Decrease -0.05 pp
From 0.16% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu111 products
- linuxAll versions (No fix recorded) | < 7.0.0-27.27
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 7.0.0-1008.8
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ c0bfe34330b5fafdbbc63a7124841711651b96b9, < 5edd564ccb002ffc830e7818c1c4a992db774678 | ≥ c0bfe34330b5fafdbbc63a7124841711651b96b9, < 4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6 | ≥ c0bfe34330b5fafdbbc63a7124841711651b96b9, < 843c0247cf21364e33bb5a8ffc9af57107d04d05 | ≥ c0bfe34330b5fafdbbc63a7124841711651b96b9, < 6597ff1d8de3f583be169587efeafd8af134e138 | 6.12
- linux_kernel≥ 6.12, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
- linux< 6.12.86-1 | < 7.0.4-1
3 vendors · 114 products