Tracker / CVE-2021-20226
CVE-2021-20226
High 7.8
A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.
Affected products and versions
| linux | linux_kernel · 5.5 → 5.8.18 |
|---|---|
| linux | linux_kernel · 5.9.0 → 5.9.3 |
| netapp | cloud_backup |
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.