Security Advisory

CVE-2021-47668

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-04-17 18:01:29
Last updated 2026-05-11 13:58:49
Assigner Linux
State PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_restart: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the netif_rx_ni() in: stats->rx_bytes += cf->len; Reordering the lines solves the issue.