What’s Vulnerable › Vulnerabilities
CVE-2021-47206: usb: host: ohci-tmio: check return value after calling platform_get_resource()
- 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: 2024-04-10 · updated 2026-06-17
- Weakness: CWE-476
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.
Affected products
- Linux kernel: before 4.4.293; from 4.5 before 4.9.291; from 4.10 before 4.14.256; from 4.15 before 4.19.218; from 4.20 before 5.4.162; from 5.5 before 5.10.82 — fixed in 4.14.256, 4.19.218, 4.4.293, 4.9.291, 5.10.82, 5.15.5
How to fix
Upgrade to a fixed version: Linux kernel 4.14.256, 4.19.218, 4.4.293, 4.9.291. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/065334f6640d074a1caec2f8b0091467a22f9483
- https://git.kernel.org/stable/c/2474eb7fc3bfbce10f7b8ea431fcffe5dd5f5100
- https://git.kernel.org/stable/c/28e016e02118917e50a667bc72fb80098cf2b460
- https://git.kernel.org/stable/c/2f18f97a1a787154a372c0738f1576f14b693d91
- https://git.kernel.org/stable/c/951b8239fd24678b56c995c5c0456ab12e059d19
- https://git.kernel.org/stable/c/9eff2b2e59fda25051ab36cd1cb5014661df657b
- https://git.kernel.org/stable/c/bb6ed2e05eb6e8619b30fa854f9becd50c11723f
- https://git.kernel.org/stable/c/f98986b7acb4219f95789095eced93ed69d81d35
- https://git.kernel.org/stable/c/065334f6640d074a1caec2f8b0091467a22f9483
- https://git.kernel.org/stable/c/2474eb7fc3bfbce10f7b8ea431fcffe5dd5f5100
- https://git.kernel.org/stable/c/28e016e02118917e50a667bc72fb80098cf2b460
- https://git.kernel.org/stable/c/2f18f97a1a787154a372c0738f1576f14b693d91
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