CVE-2021-47073

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47073
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 Patch
https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e Patch
https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 Patch
https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 Patch
https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52 Patch
https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 Patch
https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e Patch
https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 Patch
https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 Patch
https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
History

09 Jan 2025, 15:24

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 - () https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 - Patch
References () https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e - () https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e - Patch
References () https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 - () https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 - Patch
References () https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 - () https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 - Patch
References () https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52 - () https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52 - Patch
CPE cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
CWE NVD-CWE-noinfo

21 Nov 2024, 06:35

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: plataforma/x86: dell-smbios-wmi: se corrigió Ups en rmmod dell_smbios init_dell_smbios_wmi() solo registra dell_smbios_wmi_driver en sistemas donde se admite la interfaz Dell WMI. Si bien exit_dell_smbios_wmi() lo cancela del registro incondicionalmente, esto genera lo siguiente: [175.722921] ------------[ cortar aquí ]------------ [ 175.722925] Inesperado ¡Dar de baja al conductor! [175.722939] ADVERTENCIA: CPU: 1 PID: 3630 en drivers/base/driver.c:194 driver_unregister+0x38/0x40... [175.723089] Seguimiento de llamadas: [175.723094] cleanup_module+0x5/0xedd [dell_smbios]... [ 175.723148] ---[ end trace 064c34e1ad49509d ]--- Haga que la cancelación del registro se realice en las mismas condiciones que el registro para solucionar este problema.
References () https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 - () https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1 -
References () https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e - () https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e -
References () https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 - () https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525 -
References () https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 - () https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7 -
References () https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52 - () https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52 -

01 Mar 2024, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-01 22:15

Updated : 2025-01-09 15:24

NVD link : CVE-2021-47073

Mitre link : CVE-2021-47073

CVE.ORG link : CVE-2021-47073

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo