CVE-2021-47651
Qualcomm soc Linux Kernel NULL Pointer Dereference Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: soc: qcom: rpmpd: Check for null return of devm_kcalloc Because of the possible failure of the allocation, data->domains might be NULL pointer and will cause the dereference of the NULL pointer later. Therefore, it might be better to check it and directly return -ENOMEM without releasing data manually if fails, because the comment of the devm_kmalloc() says "Memory allocated with this function is automatically freed on driver detach.".
INFO
Published Date :
Feb. 26, 2025, 6:37 a.m.
Last Modified :
March 18, 2025, 7:10 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to the latest stable version.
- Apply the specific patch for the rpmpd driver vulnerability.
- Recompile and reinstall the kernel.
- Reboot the system to load the updated kernel.
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-2021-47651.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47651 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-2021-47651
weaknesses.
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-2021-47651 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47651 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.
-
Initial Analysis by [email protected]
Mar. 18, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.17 up to (excluding) 5.17.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.110 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.4.189 Added Reference Type kernel.org: https://git.kernel.org/stable/c/31b5124d742969ea8bf7a1360596f548ca23e770 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5a811126d38f9767a20cc271b34db7c8efc5a46c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/724376c30af5a57686b223dbcd6188e07d2a1de2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/755dbc3d73789ac9f0017c729abf5e4b153bf799 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/84b89fa877ad576e9ee8130f412cfd592f274508 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b5d6eba71997b6d661935d2b15094ac7f9f6132d Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: soc: qcom: rpmpd: Check for null return of devm_kcalloc Because of the possible failure of the allocation, data->domains might be NULL pointer and will cause the dereference of the NULL pointer later. Therefore, it might be better to check it and directly return -ENOMEM without releasing data manually if fails, because the comment of the devm_kmalloc() says "Memory allocated with this function is automatically freed on driver detach.". Added Reference https://git.kernel.org/stable/c/31b5124d742969ea8bf7a1360596f548ca23e770 Added Reference https://git.kernel.org/stable/c/5a811126d38f9767a20cc271b34db7c8efc5a46c Added Reference https://git.kernel.org/stable/c/724376c30af5a57686b223dbcd6188e07d2a1de2 Added Reference https://git.kernel.org/stable/c/755dbc3d73789ac9f0017c729abf5e4b153bf799 Added Reference https://git.kernel.org/stable/c/84b89fa877ad576e9ee8130f412cfd592f274508 Added Reference https://git.kernel.org/stable/c/b5d6eba71997b6d661935d2b15094ac7f9f6132d