Tracker / CVE-2021-47159
CVE-2021-47159
High 7.8
In the Linux kernel, the following vulnerability has been resolved: net: dsa: fix a crash if ->get_sset_count() fails If ds->ops->get_sset_count() fails then it "count" is a negative error code such as -EOPNOTSUPP. Because "i" is an unsigned int, the negative error code is type promoted to a very high value and the loop will corrupt memory until the system crashes. Fix this by checking for error codes and changing the type of "i" to just int.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.20 → 5.4.124 |
| linux | linux_kernel · 4.7 → 4.19.193 |
| linux | linux_kernel · 5.11 → 5.12.9 |
| linux | linux_kernel · 5.5 → 5.10.42 |
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.