CVE-2021-47668 — can: dev: can_restart: fix use after free bug
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. …
Published: 2025-04-17 · CVSS: 8.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7