CVE-2021-47361
- Source
- https://cve.org/CVERecord?id=CVE-2021-47361
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47361.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-47361
- Downstream
- Related
- Published
- 2024-05-21T15:15:22Z
- Modified
- 2026-03-13T05:16:32Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mcb: fix error handling in mcb_alloc_bus()
There are two bugs:
- If ida_simple_get() fails then this code calls put_device(carrier) but we haven't yet called get_device(carrier) and probably that leads to a use after free.
- After device_initialize() then we need to use put_device() to release the bus. This will free the internal resources tied to the device and call mcb_free_bus() which will free the rest.
- References
-
- https://git.kernel.org/stable/c/9fc198f415dee070a1de957bb5bf5921d8df3499
- https://git.kernel.org/stable/c/115b07d9f47e3996430b8f2007edd9768e1f807f
- https://git.kernel.org/stable/c/25a1433216489de4abc889910f744e952cb6dbae
- https://git.kernel.org/stable/c/66f74ba9be9daf9c47fface6af3677f602774f6b
- https://git.kernel.org/stable/c/7751f609eadf36b1f53712bae430019c53a16eb0
- https://git.kernel.org/stable/c/8a558261fa57a6deefb0925ab1829f698b194aea
- https://git.kernel.org/stable/c/91e4ad05bf18322b5921d1a6c9b603f6eb1694f0
Affected packages
Git /
Database specific
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47361.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "4.7"
},
{
"fixed": "4.9.285"
}
]
},
{
"events": [
{
"introduced": "4.10"
},
{
"fixed": "4.14.249"
}
]
},
{
"events": [
{
"introduced": "4.15"
},
{
"fixed": "4.19.209"
}
]
},
{
"events": [
{
"introduced": "4.20"
},
{
"fixed": "5.4.150"
}
]
},
{
"events": [
{
"introduced": "5.5"
},
{
"fixed": "5.10.70"
}
]
},
{
"events": [
{
"introduced": "5.11"
},
{
"fixed": "5.14.9"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.15-rc1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.15-rc2"
}
]
}
]