CVE-2024-38556
"Microsoft Azure MLX5 Linux Kernel Semaphore Acquisition Timeout Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Add a timeout to acquire the command queue semaphore Prevent forced completion handling on an entry that has not yet been assigned an index, causing an out of bounds access on idx = -22. Instead of waiting indefinitely for the sem, blocking flow now waits for index to be allocated or a sem acquisition timeout before beginning the timer for FW completion. Kernel log example: mlx5_core 0000:06:00.0: wait_func_handle_exec_timeout:1128:(pid 185911): cmd[-22]: CREATE_UCTX(0xa04) No done completion
INFO
Published Date :
June 19, 2024, 2:15 p.m.
Last Modified :
March 6, 2025, 12:53 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
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-2024-38556.
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).
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The following list is the news that have been mention
CVE-2024-38556 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-38556 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]
Mar. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-129 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.9 from (including) 6.9.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (including) 6.8.12 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10.94 from (excluding) 5.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15.17 from (excluding) 5.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16.3 from (including) 6.1.93 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.174 from (excluding) 5.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (including) 6.6.33 Added Reference Type kernel.org: https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319 Types: 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/2d0962d05c93de391ce85f6e764df895f47c8918 Added Reference https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7 Added Reference https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6 Added Reference https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b Added Reference https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 19, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Add a timeout to acquire the command queue semaphore Prevent forced completion handling on an entry that has not yet been assigned an index, causing an out of bounds access on idx = -22. Instead of waiting indefinitely for the sem, blocking flow now waits for index to be allocated or a sem acquisition timeout before beginning the timer for FW completion. Kernel log example: mlx5_core 0000:06:00.0: wait_func_handle_exec_timeout:1128:(pid 185911): cmd[-22]: CREATE_UCTX(0xa04) No done completion Added Reference kernel.org https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7 [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-2024-38556 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-2024-38556
weaknesses.