Re: [PATCH] net: check passed optlen before reading

[Jakub Kicinski]

On Tue, 28 Dec 2021 16:02:29 -0500 Tamir Duberstein wrote:
> Errant brace in the earlier version.
> 
> From 8586be4d72c6c583b1085d2239076987e1b7c43a Mon Sep 17 00:00:00 2001
> From: Tamir Duberstein <tamird@xxxxxxxxx>
> Date: Tue, 28 Dec 2021 15:09:11 -0500
> Subject: [PATCH v2] net: check passed optlen before reading
> 
> Add a check that the user-provided option is at least as long as the
> number of bytes we intend to read. Before this patch we would blindly
> read sizeof(int) bytes even in cases where the user passed
> optlen<sizeof(int), which would potentially read garbage or fault.
> 
> Discovered by new tests in https://github.com/google/gvisor/pull/6957 .
> 
> Signed-off-by: Tamir Duberstein <tamird@xxxxxxxxx>

Your patches are corrupted by your email client.

Can you try sending the latest version with git send-email?