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
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 14.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
git.kernel.org/linus/485d65e1357123a697c591a5aeb773994b247ad7 (6.10-rc1)
git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918
git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7
git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6
git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b
git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319
launchpad.net/bugs/cve/CVE-2024-38556
nvd.nist.gov/vuln/detail/CVE-2024-38556
security-tracker.debian.org/tracker/CVE-2024-38556
www.cve.org/CVERecord?id=CVE-2024-38556