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CVE PROGRAM SOURCE RECORDUnscored

CVE-2021-47073

platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1a258e670434f404a4500b65ba1afea2c2b29bba to < 75cfc833da4a2111106d4c134e93e0c7f41e35e7affected
  • 1a258e670434f404a4500b65ba1afea2c2b29bba to < 6fa78a6b9a3beb676a010dc489c1257f7e432525affected
  • 1a258e670434f404a4500b65ba1afea2c2b29bba to < 0cf036a0d325200e6c27b90908e51195bbc557b1affected
  • 1a258e670434f404a4500b65ba1afea2c2b29bba to < 8d746ea7c687bab060a2c05a35c449302406cd52affected
  • 1a258e670434f404a4500b65ba1afea2c2b29bba to < 3a53587423d25c87af4b4126a806a0575104b45eaffected

Linux Linux

Default version status: affected

  • 4.15affected
  • 0 to < 4.15unaffected
  • 4.19.192 to ≤ 4.19.*unaffected
  • 5.4.122 to ≤ 5.4.*unaffected
  • 5.10.40 to ≤ 5.10.*unaffected
  • 5.12.7 to ≤ 5.12.*unaffected
  • 5.13 to ≤ *unaffected

References