{"id":"CVE-2021-47073","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios\n\ninit_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systems\nwhere the Dell WMI interface is supported. While exit_dell_smbios_wmi()\nunregisters it unconditionally, this leads to the following oops:\n\n[  175.722921] ------------[ cut here ]------------\n[  175.722925] Unexpected driver unregister!\n[  175.722939] WARNING: CPU: 1 PID: 3630 at drivers/base/driver.c:194 driver_unregister+0x38/0x40\n...\n[  175.723089] Call Trace:\n[  175.723094]  cleanup_module+0x5/0xedd [dell_smbios]\n...\n[  175.723148] ---[ end trace 064c34e1ad49509d ]---\n\nMake the unregister happen on the same condition the register happens\nto fix this.","modified":"2026-03-15T22:42:46.779531Z","published":"2024-03-01T22:15:47.060Z","related":["ALSA-2024:4211","ALSA-2024:4352","SUSE-SU-2024:1454-1","SUSE-SU-2024:1465-1","SUSE-SU-2024:1489-1","SUSE-SU-2024:1643-1","SUSE-SU-2024:1646-1","SUSE-SU-2024:1870-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1"},{"type":"FIX","url":"https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e"},{"type":"FIX","url":"https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525"},{"type":"FIX","url":"https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7"},{"type":"FIX","url":"https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47073.json","unresolved_ranges":[{"events":[{"introduced":"4.15"},{"fixed":"4.19.192"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.122"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.40"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.12.7"}]},{"events":[{"introduced":"0"},{"last_affected":"5.13-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"5.13-rc2"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}