Re: [BUG 1/3] smb: client: SMB2/3 signature failures are logged but the response is accepted

[Greg KH <gregkh@linuxfoundation.org>]

On Sun, Jul 19, 2026 at 06:05:01PM +0000, Birtwhistle, Daniel wrote:
> Hello Steve, Paulo, and linux-cifs maintainers,
> 
> My name is Daniel Birtwhistle. In my role, I assess security properties of
> software inherited by GE HealthCare products. I am writing personally as the
> researcher and technical contact.
> 
> This is the first of three coordinated CIFS client reports. This message covers
> response-signature enforcement. The companions cover server-provided symlinks
> escaping mount confinement and client-required sealing being dropped after
> reconnect; all three defects have different fixes and can be classified
> independently.

As you sent these to a public list, no need to get security@kernel.org
involved.

Also:

> I have the minimal candidate patch, source harness, raw transcript, trace
> results and matched controls. I have not posted or attached the reproducer,
> but can provide it directly for review and can test a maintainer-proposed fix.

Always send patches, as the documentation asks, so you can get full
credit for resolving the issue if the fix is correct.

Same for the other 2 emails you sent.

thanks,

greg k-h