Tracker / CVE-2021-47476
CVE-2021-47476
Medium 4.6
In the Linux kernel, the following vulnerability has been resolved: comedi: ni_usb6501: fix NULL-deref in command paths The driver uses endpoint-sized USB transfer buffers but had no sanity checks on the sizes. This can lead to zero-size-pointer dereferences or overflowed transfer buffers in ni6501_port_command() and ni6501_counter_command() if a (malicious) device has smaller max-packet sizes than expected (or when doing descriptor fuzz testing). Add the missing sanity checks to probe().
Affected products and versions
| linux | linux_kernel · 3.18 → 4.4.292 |
|---|---|
| linux | linux_kernel · 4.10 → 4.14.255 |
| linux | linux_kernel · 4.15 → 4.19.217 |
| linux | linux_kernel · 4.20 → 5.4.159 |
| linux | linux_kernel · 4.5 → 4.9.290 |
| linux | linux_kernel · 5.11 → 5.14.18 |
| linux | linux_kernel · 5.15 → 5.15.2 |
| linux | linux_kernel · 5.5 → 5.10.79 |
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.