Re: [PATCH bpf] bpf: fix rcu warning in bpf_prog_run_pin_on_cpu() - patchwork-bot+netdevbpf

From: patchwork-bot+netdevbpf@kernel.org
To: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org,
	daniel@iogearbox.net, kernel-team@fb.com,
	syzbot+7ee5c2c09c284495371f@syzkaller.appspotmail.com
Subject: Re: [PATCH bpf] bpf: fix rcu warning in bpf_prog_run_pin_on_cpu()
Date: Thu, 29 Jul 2021 22:10:05 +0000	[thread overview]
Message-ID: <162759660566.3171.3401866075961092975.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20210728172307.1030271-1-yhs@fb.com>

Hello:

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

On Wed, 28 Jul 2021 10:23:07 -0700 you wrote:
> syzbot reported a RCU warning like below:
>   WARNING: suspicious RCU usage
>   ...
>   Call Trace:
>    __dump_stack lib/dump_stack.c:88 [inline]
>    dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
>    task_css_set include/linux/cgroup.h:481 [inline]
>    task_dfl_cgroup include/linux/cgroup.h:550 [inline]
>    ____bpf_get_current_cgroup_id kernel/bpf/helpers.c:356 [inline]
>    bpf_get_current_cgroup_id+0x1ce/0x210 kernel/bpf/helpers.c:354
>    bpf_prog_08c4887f705f20b8+0x10/0x824
>    bpf_dispatcher_nop_func include/linux/bpf.h:687 [inline]
>    bpf_prog_run_pin_on_cpu include/linux/filter.h:624 [inline]
>    bpf_prog_test_run_syscall+0x2cf/0x5f0 net/bpf/test_run.c:954
>    bpf_prog_test_run kernel/bpf/syscall.c:3207 [inline]
>    __sys_bpf+0x1993/0x53b0 kernel/bpf/syscall.c:4487
> 
> [...]

Here is the summary with links:
  - [bpf] bpf: fix rcu warning in bpf_prog_run_pin_on_cpu()
    https://git.kernel.org/bpf/bpf/c/8118b11cb603

You are awesome, thank you!
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