CVE-2024-46801
Linux Kernel Race Condition/CUse-After-Free (UAF)
Description
In the Linux kernel, the following vulnerability has been resolved: libfs: fix get_stashed_dentry() get_stashed_dentry() tries to optimistically retrieve a stashed dentry from a provided location. It needs to ensure to hold rcu lock before it dereference the stashed location to prevent UAF issues. Use rcu_dereference() instead of READ_ONCE() it's effectively equivalent with some lockdep bells and whistles and it communicates clearly that this expects rcu protection.
INFO
Published Date :
Sept. 18, 2024, 8:15 a.m.
Last Modified :
Sept. 20, 2024, 5:18 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-2024-46801.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7 | Patch |
| https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052e | Patch |
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-2024-46801 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-46801 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]
Sep. 20, 2024
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 Changed Reference Type https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7 No Types Assigned https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7 Patch Changed Reference Type https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052e No Types Assigned https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052e Patch Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.9 up to (excluding) 6.10.10 *cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:* -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 18, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: libfs: fix get_stashed_dentry() get_stashed_dentry() tries to optimistically retrieve a stashed dentry from a provided location. It needs to ensure to hold rcu lock before it dereference the stashed location to prevent UAF issues. Use rcu_dereference() instead of READ_ONCE() it's effectively equivalent with some lockdep bells and whistles and it communicates clearly that this expects rcu protection. Added Reference kernel.org https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052e [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-2024-46801 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-2024-46801
weaknesses.