CVE-2021-47206: usb: host: ohci-tmio: check return value after calling platform_get_resource()
Vulnerability summary
CVE-2021-47206 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.4% 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 11 · Related 11Timeline
- 10-04-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: usb: host: ohci-tmio: check return value after calling platform_get_resource() It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value.
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
0.23%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.23% 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.
Ubuntu89 products
- linuxAll versions (No fix recorded) | < 4.15.0-167.175 | < 5.4.0-97.110
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1119.127 | < 5.4.0-1064.67
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < 28e016e02118917e50a667bc72fb80098cf2b460 | ≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < 2f18f97a1a787154a372c0738f1576f14b693d91 | ≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < bb6ed2e05eb6e8619b30fa854f9becd50c11723f | ≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < 951b8239fd24678b56c995c5c0456ab12e059d19 | ≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < f98986b7acb4219f95789095eced93ed69d81d35 | ≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < 2474eb7fc3bfbce10f7b8ea431fcffe5dd5f5100 | ≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < 065334f6640d074a1caec2f8b0091467a22f9483 | ≥ 78c73414f4f6744e2ea5a07b263a9698aa6f2416, < 9eff2b2e59fda25051ab36cd1cb5014661df657b | 2.6.28
- linux_kernel< 4.4.293 | ≥ 4.5, < 4.9.291 | ≥ 4.10, < 4.14.256 | ≥ 4.15, < 4.19.218 | ≥ 4.20, < 5.4.162 | ≥ 5.5, < 5.10.82 | ≥ 5.11, < 5.15.5
Debian1 product
- linux< 5.15.5-1
3 vendors · 92 products
