Re: [PATCH bpf-next v7 0/4] bpf: Fix task work scheduling races

[patchwork-bot+netdevbpf@kernel.org]

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:

On Mon, 12 Oct 2026 14:19:11 +0800 you wrote:
> From: Yun Lu <luyun@kylinos.cn>
> 
> This series fixes two races in the bpf_task_work scheduling kfuncs and
> adds a regression test for each.  Each fix is followed by its test.
> 
> Patch 1 captures the task pointer before publishing the callback, which
> can clear ctx->task before the scheduling handler attempts cancellation.
> The existing RCU read-side section keeps the captured task alive because
> bpf_task_release() is put_task_struct_rcu_user().
> 
> [...]

Here is the summary with links:
  - [bpf-next,v7,1/4] bpf: Fix NULL task dereference in task work cancellation
    https://git.kernel.org/bpf/bpf-next/c/c961f7b41a10
  - [bpf-next,v7,2/4] selftests/bpf: Add task work cancellation race test
    https://git.kernel.org/bpf/bpf-next/c/6674dcb2785d
  - [bpf-next,v7,3/4] bpf: Prevent task work context reuse while irq_work is busy
    https://git.kernel.org/bpf/bpf-next/c/a36d9afe8d92
  - [bpf-next,v7,4/4] selftests/bpf: Add task work BUSY window test
    https://git.kernel.org/bpf/bpf-next/c/33b2c64f073c

You are awesome, thank you!
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