CVE-2021-47073

Advisory lineage Upstream: 0 Downstream: 10
Analyzed
Published: 01 Mar 2024, 21:15
Last modified:11 May 2026, 13:47

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Mar 2024, 21:15
Published
Vulnerability first disclosed
11 May 2026, 13:47
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios init_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systems where the Dell WMI interface is supported. While exit_dell_smbios_wmi() unregisters it unconditionally, this leads to the following oops: [ 175.722921] ------------[ cut here ]------------ [ 175.722925] Unexpected driver unregister! [ 175.722939] WARNING: CPU: 1 PID: 3630 at drivers/base/driver.c:194 driver_unregister+0x38/0x40 ... [ 175.723089] Call Trace: [ 175.723094] cleanup_module+0x5/0xedd [dell_smbios] ... [ 175.723148] ---[ end trace 064c34e1ad49509d ]--- Make the unregister happen on the same condition the register happens to fix this.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 4%

Affected Systems

  • linux•linux

    ≥ 1a258e670434f404a4500b65ba1afea2c2b29bba, < 75cfc833da4a2111106d4c134e93e0c7f41e35e7 | ≥ 1a258e670434f404a4500b65ba1afea2c2b29bba, < 6fa78a6b9a3beb676a010dc489c1257f7e432525 | ≥ 1a258e670434f404a4500b65ba1afea2c2b29bba, < 0cf036a0d325200e6c27b90908e51195bbc557b1 | ≥ 1a258e670434f404a4500b65ba1afea2c2b29bba, < 8d746ea7c687bab060a2c05a35c449302406cd52 | ≥ 1a258e670434f404a4500b65ba1afea2c2b29bba, < 3a53587423d25c87af4b4126a806a0575104b45e | 4.15

  • linux•linux_kernel

    ≥ 4.15, < 4.19.192 | ≥ 4.20, < 5.4.122 | ≥ 5.5, < 5.10.40 | ≥ 5.11, < 5.12.7 | 5.13:rc1 | 5.13:rc2

References (5)