Thread (12 messages) 12 messages, 4 authors, 2020-12-15

Re: [PATCH v2] net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet

From: patchwork-bot+netdevbpf@kernel.org
Date: 2020-12-15 03:17:34

Hello:

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

On Mon, 14 Dec 2020 22:07:39 +0300 you wrote:
syzbot reproduces BUG_ON in skb_checksum_help():
tun creates (bogus) skb with huge partial-checksummed area and
small ip packet inside. Then ip_rcv trims the skb based on size
of internal ip packet, after that csum offset points beyond of
trimmed skb. Then checksum_tg() called via netfilter hook
triggers BUG_ON:

[...]
Here is the summary with links:
  - [v2] net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet
    https://git.kernel.org/netdev/net-next/c/54970a2fbb67

You are awesome, thank you!
--
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