CVE-2021-47511
Medium
Description
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 24, 2024
First seenMay 24, 2024
How to fix
Update
- linux linux_kernel4.4.295, 4.9.293, 4.14.258, 4.19.221, 5.4.165, 5.10.85, 5.15.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.4.295, 4.5 ≤ v < 4.9.293, 4.10 ≤ v < 4.14.258, 4.15 ≤ v < 4.19.221, 4.20 ≤ v < 5.4.165, 5.5 ≤ v < 5.10.85, 5.11 ≤ v < 5.15.8, 5.16 | 4.4.295, 4.9.293, 4.14.258, 4.19.221, 5.4.165, 5.10.85, 5.15.8 |
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