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.
Metrics
Affected Vendors & Products
References
History
No history.
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
Vulnrichment
Updated: 2024-08-04T05:24:39.704Z
NVD
Status : Awaiting Analysis
Published: 2024-03-01T22:15:47.060
Modified: 2024-03-01T22:22:25.913
Link: CVE-2021-47073
Redhat