Hello:
This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:
On Wed, 18 Jan 2023 12:48:15 -0800 you wrote:
> In current bpf_send_signal() and bpf_send_signal_thread() helper
> implementation, irq_work is used to handle nmi context. Hao Sun
> reported in [1] that the current task at the entry of the helper
> might be gone during irq_work callback processing. To fix the issue,
> a reference is acquired for the current task before enqueuing into
> the irq_work so that the queued task is still available during
> irq_work callback processing.
>
> [...]
Here is the summary with links:
- [bpf] bpf: Fix a possible task gone issue with bpf_send_signal[_thread]() helpers
https://git.kernel.org/bpf/bpf/c/bdb7fdb0aca8
You are awesome, thank you!
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