CVE-2021-47466
Linux Kernel Slub Memory Leak
Description
In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmem_cache_open() In error path, the random_seq of slub cache might be leaked. Fix this by using __kmem_cache_release() to release all the relevant resources.
INFO
Published Date :
May 22, 2024, 7:15 a.m.
Last Modified :
Jan. 7, 2025, 8:13 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-2021-47466.
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-2021-47466 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47466 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]
Jan. 07, 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-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.8 up to (excluding) 5.4.156 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.76 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.15 *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:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/42b81946e3ac9ea0372ba16e05160dc11e02694f No Types Assigned https://git.kernel.org/stable/c/42b81946e3ac9ea0372ba16e05160dc11e02694f Patch Changed Reference Type https://git.kernel.org/stable/c/42b81946e3ac9ea0372ba16e05160dc11e02694f No Types Assigned https://git.kernel.org/stable/c/42b81946e3ac9ea0372ba16e05160dc11e02694f Patch Changed Reference Type https://git.kernel.org/stable/c/4f5d1c29cfab5cb0ab885059818751bdef32e2bb No Types Assigned https://git.kernel.org/stable/c/4f5d1c29cfab5cb0ab885059818751bdef32e2bb Patch Changed Reference Type https://git.kernel.org/stable/c/4f5d1c29cfab5cb0ab885059818751bdef32e2bb No Types Assigned https://git.kernel.org/stable/c/4f5d1c29cfab5cb0ab885059818751bdef32e2bb Patch Changed Reference Type https://git.kernel.org/stable/c/568f906340b43120abd6fcc67c37396482f85930 No Types Assigned https://git.kernel.org/stable/c/568f906340b43120abd6fcc67c37396482f85930 Patch Changed Reference Type https://git.kernel.org/stable/c/568f906340b43120abd6fcc67c37396482f85930 No Types Assigned https://git.kernel.org/stable/c/568f906340b43120abd6fcc67c37396482f85930 Patch Changed Reference Type https://git.kernel.org/stable/c/9037c57681d25e4dcc442d940d6dbe24dd31f461 No Types Assigned https://git.kernel.org/stable/c/9037c57681d25e4dcc442d940d6dbe24dd31f461 Patch Changed Reference Type https://git.kernel.org/stable/c/9037c57681d25e4dcc442d940d6dbe24dd31f461 No Types Assigned https://git.kernel.org/stable/c/9037c57681d25e4dcc442d940d6dbe24dd31f461 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/42b81946e3ac9ea0372ba16e05160dc11e02694f Added Reference https://git.kernel.org/stable/c/4f5d1c29cfab5cb0ab885059818751bdef32e2bb Added Reference https://git.kernel.org/stable/c/568f906340b43120abd6fcc67c37396482f85930 Added Reference https://git.kernel.org/stable/c/9037c57681d25e4dcc442d940d6dbe24dd31f461 -
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: mm, slub: fix potential memoryleak in kmem_cache_open() In error path, the random_seq of slub cache might be leaked. Fix this by using __kmem_cache_release() to release all the relevant resources. Added Reference kernel.org https://git.kernel.org/stable/c/4f5d1c29cfab5cb0ab885059818751bdef32e2bb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/568f906340b43120abd6fcc67c37396482f85930 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/42b81946e3ac9ea0372ba16e05160dc11e02694f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9037c57681d25e4dcc442d940d6dbe24dd31f461 [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-2021-47466 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-2021-47466
weaknesses.