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9.8 Critique

CVE-2021-47232 In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while…

Description

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while in use This patch fixes a Use-after-Free found by the syzbot. The problem is that a skb is taken from the per-session skb queue, without incrementing the ref count. This leads to a Use-after-Free if the skb is taken concurrently from the session queue due to a CTS.

Produits et versions touchés

Produit Versions touchées Corrigé en
Linux 5.13 premières → < 5.13 5.13
Linux 5.12 premières → < 5.12.13 5.12.13
Linux 5.10 premières → < 5.10.46 5.10.46
Linux 5.4 5.4.128
linux_kernel 5.4 Pas de correctif indiqué

Références

Chronologie

  1. Publiée
  2. Dernière modification
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