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Thu, 23 Apr 2026 01:35:57 -0700 (PDT) From: Jiri Olsa X-Google-Original-From: Jiri Olsa Date: Thu, 23 Apr 2026 10:35:55 +0200 To: XIAO WU Cc: bot+bpf-ci@kernel.org, andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, clm@meta.com, daniel@iogearbox.net, eddyz87@gmail.com, ihor.solodrai@linux.dev, kafai@fb.com, linux-trace-kernel@vger.kernel.org, martin.lau@kernel.org, menglong8.dong@gmail.com, rostedt@kernel.org, songliubraving@fb.com, yhs@fb.com, yonghong.song@linux.dev Subject: Re: [PATCH bpf-next 10/17] bpf: Add support for tracing_multi link session Message-ID: References: <0520af2c467a82b82aa3014b7e721f95bfde9e91324bb2e183b099e5a37bbc3e@mail.kernel.org> <20260423160724.00004f6d@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260423160724.00004f6d@gmail.com> On Thu, Apr 23, 2026 at 04:07:24PM +0800, XIAO WU wrote: SNIP > I agree the patch should be made bisect-safe. I will post a follow-up > that ensures BPF_TRACE_FSESSION_MULTI cannot enter this uninitialized > fexit path (either by initializing it consistently where needed, or > rejecting this attach route and keeping it exclusive to > bpf_tracing_multi_attach()). > > Signed-off-by: XIAO WU > > Thanks fyi there's v5 already https://lore.kernel.org/bpf/20260417192502.194548-1-jolsa@kernel.org/ jirka