Thread (3 messages) 3 messages, 3 authors, 2021-08-23

Re: [PATCH bpf-next v2] af_unix: fix NULL pointer bug in unix_shutdown

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-08-23 13:00:13
Also in: lkml, netdev

Hello:

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

On Sat, 21 Aug 2021 18:07:36 +0000 you wrote:
Commit 94531cfcbe79 ("af_unix: Add unix_stream_proto for sockmap")
introduced a bug for af_unix SEQPACKET type. In unix_shutdown, the
unhash function will call prot->unhash(), which is NULL for SEQPACKET.
And kernel will panic. On ARM32, it will show following messages: (it
likely affects x86 too).

Fix the bug by checking the prot->unhash is NULL or not first.

[...]
Here is the summary with links:
  - [bpf-next,v2] af_unix: fix NULL pointer bug in unix_shutdown
    https://git.kernel.org/bpf/bpf-next/c/d359902d5c35

You are awesome, thank you!
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