Re: [PATCH v2] net: 6pack: fix slab-out-of-bounds in decode_data

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Fri, 13 Aug 2021 18:14:33 +0300 you wrote:

Syzbot reported slab-out-of bounds write in decode_data().
The problem was in missing validation checks.

Syzbot's reproducer generated malicious input, which caused
decode_data() to be called a lot in sixpack_decode(). Since
rx_count_cooked is only 400 bytes and noone reported before,
that 400 bytes is not enough, let's just check if input is malicious
and complain about buffer overrun.

[...]

Here is the summary with links:
  - [v2] net: 6pack: fix slab-out-of-bounds in decode_data
    https://git.kernel.org/netdev/net/c/19d1532a1876

You are awesome, thank you!
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