What’s Vulnerable › Vulnerabilities
CVE-2021-47423: drm/nouveau/debugfs: fix file release memory leak
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-05-21 · updated 2026-06-17
- Weakness: CWE-401
Description
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/debugfs: fix file release memory leak When using single_open() for opening, single_release() should be called, otherwise the 'op' allocated in single_open() will be leaked.
Affected products
- Linux kernel: from 4.5 before 4.9.287; from 4.10 before 4.14.251; from 4.15 before 4.19.211; from 4.20 before 5.4.153; from 5.5 before 5.10.73; from 5.11 before 5.14.12 — fixed in 4.14.251, 4.19.211, 4.9.287, 5.10.73, 5.14.12, 5.4.153
How to fix
Upgrade to a fixed version: Linux kernel 4.14.251, 4.19.211, 4.9.287, 5.10.73. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/11cd944bb87d9e575b94c07c952105eda745b459
- https://git.kernel.org/stable/c/1508b09945bde393326a9dab73b1fc35f672d771
- https://git.kernel.org/stable/c/88c3610045ca6e699331b6bb5c095c5565f30721
- https://git.kernel.org/stable/c/9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43
- https://git.kernel.org/stable/c/df0c9418923679bc6d0060bdb1b5bf2c755159e0
- https://git.kernel.org/stable/c/f5a8703a9c418c6fc54eb772712dfe7641e3991c
- https://git.kernel.org/stable/c/f69556a42043b5444ca712ee889829ba89fdcba8
- https://git.kernel.org/stable/c/11cd944bb87d9e575b94c07c952105eda745b459
- https://git.kernel.org/stable/c/1508b09945bde393326a9dab73b1fc35f672d771
- https://git.kernel.org/stable/c/88c3610045ca6e699331b6bb5c095c5565f30721
- https://git.kernel.org/stable/c/9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43
- https://git.kernel.org/stable/c/df0c9418923679bc6d0060bdb1b5bf2c755159e0
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