Security Advisory

CVE-2021-47520

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2024-05-24 15:09:33

Last updated 2026-05-11 13:56:15

Assigner Linux

State PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: can: pch_can: pch_can_rx_normal: fix use after free After calling netif_receive_skb(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is dereferenced just after the call netif_receive_skb(skb). Reordering the lines solves the issue.

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