7.8

CVE-2024-38556

net/mlx5: Add a timeout to acquire the command queue semaphore

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.4.174 < 5.5
Linux ≫ Linux Kernel Version >= 5.10.94 < 5.11
Linux ≫ Linux Kernel Version >= 5.15.17 < 5.16
Linux ≫ Linux Kernel Version >= 5.16.3 <= 6.1.93
Linux ≫ Linux Kernel Version >= 6.2 <= 6.6.33
Linux ≫ Linux Kernel Version >= 6.7 <= 6.8.12
Linux ≫ Linux Kernel Version >= 6.9 <= 6.9.3
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.17
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-129 Improper Validation of Array Index

The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918
Patch
https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7
Patch
https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6
Patch
https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b
Patch
https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319
Patch