VULNERABILITY INTELLIGENCE
CVE-2021-47670
CVSS score8.8 HIGH
EPSS probability0.22%
CISA KEVNot currently listed
Published2025-04-17
Last modified2026-08-04
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix use after free bugs After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the peak_usb_netif_rx_ni(). Reordering the lines solves the issue.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-416