このページは Debian 向けの修正状況です。脆弱性そのものの説明は CVE 本体のページにあります。
CVE-2021-47668 の詳細 →
DEBIAN-CVE-2021-47668
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), de...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
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.
出典: OSV.dev (Open Source Vulnerabilities) OSV
影響パッケージ
Debian:12
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.12-1"}]}]
Debian:13
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.12-1"}]}]
Debian:14
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.12-1"}]}]
参照URL
- advisory security-tracker.debian.org