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

Vulnerability from cvelistv5 – Published: 2024-03-01 21:15 – Updated: 2025-05-04 07:03
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.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 75cfc833da4a2111106d4c134e93e0c7f41e35e7 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 6fa78a6b9a3beb676a010dc489c1257f7e432525 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 0cf036a0d325200e6c27b90908e51195bbc557b1 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 8d746ea7c687bab060a2c05a35c449302406cd52 (git)
Affected: 1a258e670434f404a4500b65ba1afea2c2b29bba , < 3a53587423d25c87af4b4126a806a0575104b45e (git)
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    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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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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