Thread (3 messages) 3 messages, 3 authors, 2021-06-18

Re: [PATCH bpf] xsk: fix missing validation for skb and unaligned mode

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-06-18 15:00:06
Also in: bpf

Hello:

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

On Thu, 17 Jun 2021 11:22:55 +0200 you wrote:
From: Magnus Karlsson <magnus.karlsson@intel.com>

Fix a missing validation of a Tx descriptor when executing in skb mode
and the umem is in unaligned mode. A descriptor could point to a
buffer straddling the end of the umem, thus effectively tricking the
kernel to read outside the allowed umem region. This could lead to a
kernel crash if that part of memory is not mapped.

[...]
Here is the summary with links:
  - [bpf] xsk: fix missing validation for skb and unaligned mode
    https://git.kernel.org/bpf/bpf/c/2f99619820c2

You are awesome, thank you!
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