🛡️ UBUNTU-CVE-2021-47211
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-04-10
Updated 2026-06-15
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 5.4.0-218.238
linux-allwinner-5.19
linux-aws 5.4.0-1147.157
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4 5.4.0-1147.157~18.04.1
linux-aws-5.8
linux-aws-6.2
linux-aws-fips
linux-aws-hwe 4.15.0-1181.194~16.04.1
linux-azure 5.4.0-1152.159
linux-azure-4.15 4.15.0-1189.204
linux-azure-5.11
linux-azure-5.13
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4 5.4.0-1152.159~18.04.1
linux-azure-5.8
linux-azure-6.2
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips
linux-bluefield
linux-fips
linux-gcp 5.4.0-1150.159
linux-gcp-4.15 4.15.0-1174.191
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4 5.4.0-1150.159~18.04.1
linux-gcp-5.8
linux-gcp-6.2
linux-gcp-fips
linux-gke
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.19
linux-hwe-5.4 5.4.0-218.238~18.04.1
linux-hwe-5.8
linux-hwe-6.2
linux-hwe-edge
linux-ibm 5.4.0-1093.98
linux-ibm-5.4 5.4.0-1093.98~18.04.1
linux-intel-5.13
linux-intel-iot-realtime
linux-iot 5.4.0-1051.54
linux-kvm 5.4.0-1134.143
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.2
linux-lts-xenial 4.4.0-269.303~14.04.1
linux-nvidia
linux-nvidia-6.2
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oracle 5.4.0-1145.155
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.3
linux-oracle-5.4 5.4.0-1145.155~18.04.1
linux-oracle-5.8
linux-raspi 5.4.0-1130.143
linux-raspi-5.4 5.4.0-1130.143~18.04.1
linux-raspi-realtime
linux-raspi2
linux-realtime
linux-riscv
linux-riscv-5.11
linux-riscv-5.19
linux-riscv-5.8
linux-starfive-5.19
linux-starfive-6.2
linux-xilinx-zynqmp 5.4.0-1065.69

References

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