CVE-2024-38556
Published: June 21, 2024Last modified: June 21, 2024
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
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.97-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918
- https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7
- https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6
- https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b
- https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319