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CVE-2021-47509
MEDIUM5.5
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.
CVE Details
CVSS v3.1 Score5.5
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack VectorLOCAL
ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
Published5/24/2024
Last Modified9/29/2025
Sourcenvd
Honeypot Sightings0
Affected Products
linux:linux_kernel
References
https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc(af854a3a-2127-422b-91ae-364da2661108)
IOC Correlations
No correlations recorded
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