CVE-2021-47670
- Source
- https://cve.org/CVERecord?id=CVE-2021-47670
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47670.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-47670
- Downstream
- Related
- Published
- 2025-04-17T18:15:43.833Z
- Modified
- 2026-03-13T05:18:13.538071Z
- 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:
can: peak_usb: fix use after free bugs
After calling peakusbnetifrxni(skb), dereferencing skb is unsafe. Especially, the canframe cf which aliases skb memory is accessed after the peakusbnetifrx_ni().
Reordering the lines solves the issue.
- References
Affected packages
Git /
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "4.0"
},
{
"fixed": "4.19.171"
}
]
},
{
"events": [
{
"introduced": "4.20"
},
{
"fixed": "5.4.93"
}
]
},
{
"events": [
{
"introduced": "5.5"
},
{
"fixed": "5.10.11"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.11-rc1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.11-rc2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.11-rc3"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.11-rc4"
}
]
}
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47670.json"