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NVD Vulnerability Details :
CVE-2021-47509
Analyzed
More InfoOfficial Page
Source-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-24 May, 2024 | 15:15
Updated At-29 Sep, 2025 | 16:30

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Secondary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Primary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CPE Matches

Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions before 4.4.295(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 4.5(inclusive) to 4.9.293(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 4.10(inclusive) to 4.14.258(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 4.15(inclusive) to 4.19.221(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 4.20(inclusive) to 5.4.165(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 5.5(inclusive) to 5.10.85(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 5.11(inclusive) to 5.15.8(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>5.16
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>5.16
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>5.16
cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>5.16
cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
NVD-CWE-noinfoPrimarynvd@nist.gov
CWE ID: NVD-CWE-noinfo
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28aaf854a3a-2127-422b-91ae-364da2661108
Patch
https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2af854a3a-2127-422b-91ae-364da2661108
Patch
https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3af854a3a-2127-422b-91ae-364da2661108
Patch
https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2af854a3a-2127-422b-91ae-364da2661108
Patch
https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43caf854a3a-2127-422b-91ae-364da2661108
Patch
https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257af854a3a-2127-422b-91ae-364da2661108
Patch
https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aebaf854a3a-2127-422b-91ae-364da2661108
Patch
https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bccaf854a3a-2127-422b-91ae-364da2661108
Patch
Hyperlink: https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Change History
0Changes found

Details not found