From: patchwork-bot+netdevbpf@kernel.org
To: Aditya Sharma <adi.sharma@zohomail.in>
Cc: bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
andrii@kernel.org, eddyz87@gmail.com, memxor@gmail.com,
martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev,
jolsa@kernel.org, emil@etsalapatis.com, ihor.solodrai@linux.dev,
kpsingh@kernel.org, matt@bobrowski.net, rostedt@goodmis.org,
mhiramat@kernel.org, mathieu.desnoyers@efficios.com,
shuah@kernel.org, puranjay@kernel.org,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH bpf-next v2 0/2] bpf: Fix bpf_send_signal_task() from kernel thread context
Date: Sat, 24 Oct 2026 05:10:07 +0000 [thread overview]
Message-ID: <179281860707.1477734.466775423559947933.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261001072449.1377267-1-adi.sharma@zohomail.in>
Hello:
This series was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@kernel.org>:
On Thu, 1 Oct 2026 12:54:47 +0530 you wrote:
> bpf_send_signal_task() returns -EPERM whenever the calling context is a
> kernel thread, even when the signal is for a different task. The
> cause is the nmi_uaccess_okay() check in bpf_send_signal_common(),
> which is a statement about current and not about the target task.
>
> Patch 1 removes the check, as the signal path does no user memory
> access and the check has nothing to guard there.
>
> [...]
Here is the summary with links:
- [bpf-next,v2,1/2] bpf: Remove nmi_uaccess_okay() check in bpf_send_signal_common()
https://git.kernel.org/bpf/bpf/c/93bd472336ac
- [bpf-next,v2,2/2] selftests/bpf: Test bpf_send_signal_task() from kernel thread context
https://git.kernel.org/bpf/bpf/c/2c79610f72bb
You are awesome, thank you!
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prev parent reply other threads:[~2026-10-24 5:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 7:24 [PATCH bpf-next v2 0/2] bpf: Fix bpf_send_signal_task() from kernel thread context Aditya Sharma
2026-10-01 7:24 ` [PATCH bpf-next v2 1/2] bpf: Remove nmi_uaccess_okay() check in bpf_send_signal_common() Aditya Sharma
2026-10-01 7:24 ` [PATCH bpf-next v2 2/2] selftests/bpf: Test bpf_send_signal_task() from kernel thread context Aditya Sharma
2026-10-23 12:45 ` [PATCH bpf-next v2 0/2] bpf: Fix " Aditya Sharma
2026-10-23 21:47 ` Andrii Nakryiko
2026-10-24 5:10 ` patchwork-bot+netdevbpf [this message]
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