CVE - CVE-2021-47509

CVE-ID
CVE-2021-47509	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a URL:https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a MISC:https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2 URL:https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2 MISC:https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3 URL:https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3 MISC:https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2 URL:https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2 MISC:https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c URL:https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c MISC:https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257 URL:https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257 MISC:https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb URL:https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb MISC:https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc URL:https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc
Assigning CNA
kernel.org
Date Record Created
20240524	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240524)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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