CVE-2021-47423: drm/nouveau/debugfs: fix file release memory leak
Vulnerability summary
CVE-2021-47423 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 13% 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 11 · Related 11Timeline
- 21-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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.
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
0.22%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.22% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot 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.
Ubuntu86 products
- linux< 4.15.0-166.174 | < 5.4.0-92.103
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.15.0-1118.125 | < 5.4.0-1061.64
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 6e9fc177399f08446293fec7607913fdbc95e191, < df0c9418923679bc6d0060bdb1b5bf2c755159e0 | ≥ 6e9fc177399f08446293fec7607913fdbc95e191, < 9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43 | ≥ 6e9fc177399f08446293fec7607913fdbc95e191, < 1508b09945bde393326a9dab73b1fc35f672d771 | ≥ 6e9fc177399f08446293fec7607913fdbc95e191, < 11cd944bb87d9e575b94c07c952105eda745b459 | ≥ 6e9fc177399f08446293fec7607913fdbc95e191, < f69556a42043b5444ca712ee889829ba89fdcba8 | ≥ 6e9fc177399f08446293fec7607913fdbc95e191, < 88c3610045ca6e699331b6bb5c095c5565f30721 | ≥ 6e9fc177399f08446293fec7607913fdbc95e191, < f5a8703a9c418c6fc54eb772712dfe7641e3991c | 4.5
- linux_kernel≥ 4.5, < 4.9.287 | ≥ 4.10, < 4.14.251 | ≥ 4.15, < 4.19.211 | ≥ 4.20, < 5.4.153 | ≥ 5.5, < 5.10.73 | ≥ 5.11, < 5.14.12 | 5.15:rc1 | 5.15:rc2 | 5.15:rc3 | 5.15:rc4
Debian1 product
- linux< 5.14.12-1
3 vendors · 89 products
