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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>,
	Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Jesper Dangaard Brouer <hawk@kernel.org>,
	Andrey Ignatov <rdna@fb.com>
Cc: Sasha Levin <sashal@kernel.org>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	netdev@vger.kernel.org,
	bpf@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Yinhao Hu <dddddd@hust.edu.cn>,
	Kaiyan Mei <M202472210@hust.edu.cn>,
	Dongliang Mu <dzm91@hust.edu.cn>,
	"Miguel Gazquez (Schneider Electric)" <miguel.gazquez@bootlin.com>
Subject: Re: [PATCH 5.15.y] bpf: Enforce expected_attach_type for tailcall compatibility
Date: Fri, 11 Sep 2026 07:20:54 -0400
Message-ID: <daily-reply-0035-re-bpf-tailcall-5-15@kernel.org>
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> [ Upstream commit 4540aed51b12bc13364149bf95f6ecef013197c0 ]
>
> Yinhao et al. recently reported:
>
>   Our fuzzer tool discovered an uninitialized pointer issue in the
>   bpf_prog_test_run_xdp() function within the Linux kernel's BPF
>   subsystem.

Queued for 5.15, thanks.

-- 
Thanks,
Sasha