CVE-2024-38556
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-129
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918Patch
- https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7Patch
- https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6Patch
- https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71bPatch
- https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319Patch
- https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918Patch
- https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7Patch
- https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6Patch
- https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71bPatch
- https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.