On Sun, May 10, 2026 at 01:51:54AM +0800, 杨弋 wrote:
> The acoustic_ctl_write debugfs handler allocates a buffer via 
> memdup_user(from, count) but only validates that count is not too 
> large. It then accesses src[0] through src[6] without ensuring
> count >= 7.
> 
> Add a minimum-size check of 7 bytes.
> 
> Signed-off-by: Yi Yang <yangyi@msh.team>
> Assisted-by: kimi-cli:kimi-k2.6

You haven't provided a good signoff here, the name and email you're
using here don't obviously correspond to those used in the email body.
Please see Documentation/process/submitting-patches.rst for details
on what this is and why it's important.