CVE-2021-47509

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-47509
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47509.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-47509
Downstream
Related
Published
2024-05-24T15:15:11Z
Modified
2025-09-29T16:30:22Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

ALSA: pcm: oss: Limit the period size to 16MB

Set the practical limit to the period size (the fragment shift in OSS) instead of a full 31bit; a too large value could lead to the exhaust of memory as we allocate temporary buffers of the period size, too.

As of this patch, we set to 16MB limit, which should cover all use cases.

References

Affected packages