CVE-2021-47431: drm/amdgpu: fix gart.bo pin_count leak
Vulnerability summary
CVE-2021-47431 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.9% 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.
- 11-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix gart.bo pin_count leak gmc_v{9,10}_0_gart_disable() isn't called matched with correspoding gart_enbale function in SRIOV case. This will lead to gart.bo pin_count leak on driver unload.
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 causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu88 products
- linuxAll versions (No fix recorded) | < 5.4.0-92.103
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1061.64
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 5dd696ae5d648b412a29b314c50e5dcf65829b9d, < 83d857d6b0967b6709cd38750c3ce2ed8ced1a95 | ≥ 5dd696ae5d648b412a29b314c50e5dcf65829b9d, < 621ddffb70db824eabd63d18ac635180fe9500f9 | ≥ 5dd696ae5d648b412a29b314c50e5dcf65829b9d, < 18d1c5ea3798ba42cfa0f8b2264d873463facb03 | ≥ 5dd696ae5d648b412a29b314c50e5dcf65829b9d, < 66805763a97f8f7bdf742fc0851d85c02ed9411f | 4.13
- linux_kernel≥ 4.2, < 5.4.154 | ≥ 5.5, < 5.10.74 | ≥ 5.11, < 5.14.13 | 5.15:rc1 | 5.15:rc2 | 5.15:rc3
Debian1 product
- linux< 5.14.16-1
3 vendors · 91 products
