CVE - CVE-2021-47073

CVE-ID
CVE-2021-47073	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 URL:https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 MISC:https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e URL:https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e MISC:https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 URL:https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 MISC:https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 URL:https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 MISC:https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52 URL:https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52
Assigning CNA
kernel.org
Date Record Created
20240229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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