CVE-2024-38556

Vulnerability overview

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

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= 8e715cd613a1e872b9d918e912d90b399785761a < 4baae687a20ef2b82fde12de3c04461e6f2521d6, >= 8e715cd613a1e872b9d918e912d90b399785761a < f9caccdd42e999b74303c9b0643300073ed5d319, >= 8e715cd613a1e872b9d918e912d90b399785761a < 2d0962d05c93de391ce85f6e764df895f47c8918, >= 8e715cd613a1e872b9d918e912d90b399785761a < 94024332a129c6e4275569d85c0c1bfb2ae2d71b, >= 8e715cd613a1e872b9d918e912d90b399785761a < 485d65e1357123a697c591a5aeb773994b247ad7, >= 74dd45122b84479eee50bd0956ae8bc5799c9f8a, >= e801f81cee3c8901f52ee48c6329802b28fbb49c, >= d73d81447c6651904dd4a9e3fd88651ff174c1b7, >= 4646175c19fd019b773444a11ff62748eb83745b, >= 5.4.174 < 5.5, >= 5.10.94 < 5.11, >= 5.15.17 < 5.16, >= 5.16.3 < 5.17, >= 5.17, >= 5.16.3 <= 6.1.93, >= 6.2 <= 6.6.33, >= 6.7 <= 6.8.12, >= 6.9 <= 6.9.3

Fixed versions

5.5, 5.11, 5.16

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-129