Tracker / CVE-2021-47511
CVE-2021-47511
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix negative period/buffer sizes The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with size_t. Due to that, a too big value may be passed to the lower layers. This patch changes the code to handle with ssize_t and adds the proper error checks appropriately.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · … → 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.