Tracker / CVE-2021-46973
CVE-2021-46973
High 7.8
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Avoid potential use after free in MHI send It is possible that the MHI ul_callback will be invoked immediately following the queueing of the skb for transmission, leading to the callback decrementing the refcount of the associated sk and freeing the skb. As such the dereference of skb and the increment of the sk refcount must happen before the skb is queued, to avoid the skb to be used after free and potentially the sk to drop its last refcount..
Affected products and versions
| linux | linux_kernel · 5.11 → 5.11.19 |
|---|---|
| linux | linux_kernel · 5.12 → 5.12.2 |
| linux | linux_kernel · 5.8 → 5.10.35 |
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.