CVE-2021-47445
Qualcomm MSM Null Pointer Dereference
Description
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")
INFO
Published Date :
May 22, 2024, 7:15 a.m.
Last Modified :
Jan. 14, 2025, 4:28 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47445.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47445 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47445 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jan. 14, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.0 up to (excluding) 4.4.290 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.288 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.252 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.213 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.155 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.14 *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:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac No Types Assigned https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac Patch Changed Reference Type https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac No Types Assigned https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac Patch Changed Reference Type https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 No Types Assigned https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 Patch Changed Reference Type https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 No Types Assigned https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 Patch Changed Reference Type https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be No Types Assigned https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be Patch Changed Reference Type https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be No Types Assigned https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be Patch Changed Reference Type https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 No Types Assigned https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 Patch Changed Reference Type https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 No Types Assigned https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 Patch Changed Reference Type https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 No Types Assigned https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 Patch Changed Reference Type https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 No Types Assigned https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 Patch Changed Reference Type https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb No Types Assigned https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb Patch Changed Reference Type https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb No Types Assigned https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb Patch Changed Reference Type https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a No Types Assigned https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a Patch Changed Reference Type https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a No Types Assigned https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a Patch Changed Reference Type https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 No Types Assigned https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 Patch Changed Reference Type https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 No Types Assigned https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac Added Reference https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 Added Reference https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be Added Reference https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 Added Reference https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 Added Reference https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb Added Reference https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a Added Reference https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 22, 2024
Action Type Old Value New Value Added Description 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") Added Reference kernel.org https://git.kernel.org/stable/c/f175b9a83e5c252d7c74acddc792840016caae0a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47445 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47445
weaknesses.