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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-03-01T21:15:11.466Z

Updated: 2024-08-04T05:24:39.704Z

Reserved: 2024-02-29T22:33:44.297Z

Link: CVE-2021-47073

cve-icon Vulnrichment

Updated: 2024-08-04T05:24:39.704Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-03-01T22:15:47.060

Modified: 2024-03-01T22:22:25.913

Link: CVE-2021-47073

cve-icon Redhat

Severity : Low

Publid Date: 2024-03-01T00:00:00Z

Links: CVE-2021-47073 - Bugzilla