CVE-2021-47445

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47445
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix null pointer dereference on pointer edp The initialization of pointer dev dereferences pointer edp before edp is null checked, so there is a potential null pointer deference issue. Fix this by only dereferencing edp after edp has been null checked. Addresses-Coverity: ("Dereference before null check")

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/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac Patch
https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 Patch
https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be Patch
https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 Patch
https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 Patch
https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb Patch
https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a Patch
https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 Patch
https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac Patch
https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 Patch
https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be Patch
https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 Patch
https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 Patch
https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb Patch
https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a Patch
https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
History

14 Jan 2025, 16:28

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac - () https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac - Patch
References () https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 - () https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 - Patch
References () https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be - () https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be - Patch
References () https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 - () https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 - Patch
References () https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 - () https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 - Patch
References () https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb - () https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb - Patch
References () https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a - () https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a - Patch
References () https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 - () https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 - Patch
CPE cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
CWE CWE-476
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

21 Nov 2024, 06:36

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac - () https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac -
References () https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 - () https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 -
References () https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be - () https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be -
References () https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 - () https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 -
References () https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 - () https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 -
References () https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb - () https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb -
References () https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a - () https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a -
References () https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 - () https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/msm: corrige la desreferencia del puntero nulo en el puntero edp. La inicialización del puntero dev desreferencias del puntero edp antes de edp se marca como nula, por lo que existe un posible problema de deferencia del puntero nulo. Solucione este problema eliminando la referencia a edp únicamente después de que se haya marcado como nulo. Direcciones-Cobertura: ("Desreferencia antes de verificación nula")

22 May 2024, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-22 07:15

Updated : 2025-01-14 16:28

NVD link : CVE-2021-47445

Mitre link : CVE-2021-47445

CVE.ORG link : CVE-2021-47445

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference