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CVE Vulnerability Details :
CVE-2021-47211
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-10 Apr, 2024 | 19:01
Updated At-11 May, 2026 | 13:50
Rejected At-
▼CVE Numbering Authority (CNA)
ALSA: usb-audio: fix null pointer dereference on pointer cs_desc

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix null pointer dereference on pointer cs_desc The pointer cs_desc return from snd_usb_find_clock_source could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference.

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • sound/usb/clock.c
Default Status
unaffected
Versions
Affected
  • From 1dc669fed61a4ec4270a89e5fb3535802cc45668 before 58fa50de595f152900594c28ec9915c169643739 (git)
  • From 1dc669fed61a4ec4270a89e5fb3535802cc45668 before b97053df0f04747c3c1e021ecbe99db675342954 (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • sound/usb/clock.c
Default Status
affected
Versions
Affected
  • 3.10
Unaffected
  • From 0 before 3.10 (semver)
  • From 5.15.5 through 5.15.* (semver)
  • From 5.16 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739
N/A
https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954
N/A
Hyperlink: https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739
x_transferred
https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954
x_transferred
Hyperlink: https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739
Resource:
x_transferred
Hyperlink: https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954
Resource:
x_transferred
Details not found