CVE-2021-47073 (GCVE-0-2021-47073)

Vulnerability from cvelistv5 – Published: 2024-03-01 21:15 – Updated: 2026-05-11 13:47
VLAI
Title
platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
Summary
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.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-05 22:11 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6992 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 75cfc833da4a2111106d4c134e93e0c7f41e35e7 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 6fa78a6b9a3beb676a010dc489c1257f7e432525 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 0cf036a0d325200e6c27b90908e51195bbc557b1 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 8d746ea7c687bab060a2c05a35c449302406cd52 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 3a53587423d25c87af4b4126a806a0575104b45e (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.192 , ≤ 4.19.* (semver)
Unaffected: 5.4.122 , ≤ 5.4.* (semver)
Unaffected: 5.10.40 , ≤ 5.10.* (semver)
Unaffected: 5.12.7 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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      "product_status:known_affected": "42",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios",
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}



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