Tracker / CVE-2021-47520
CVE-2021-47520
High 8.8
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.
Affected products and versions
| linux | linux_kernel · 2.6.37 → 4.4.295 |
|---|---|
| linux | linux_kernel · 4.10 → 4.14.258 |
| linux | linux_kernel · 4.15 → 4.19.221 |
| linux | linux_kernel · 4.20 → 5.4.165 |
| linux | linux_kernel · 4.5 → 4.9.293 |
| linux | linux_kernel · 5.11 → 5.15.8 |
| linux | linux_kernel · 5.5 → 5.10.85 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.