VYPR
Medium severity5.5NVD Advisory· Published May 24, 2024· Updated Jun 17, 2026

CVE-2021-47511

CVE-2021-47511

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.

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Affected products

198

Patches

Vulnerability mechanics

References

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