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From: Eugene Syromiatnikov <esyr@redhat.com>
To: Jiri Olsa <jolsa@kernel.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ingo Molnar <mingo@redhat.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>
Cc: 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>,
	netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH bpf v3 0/2] Fix kprobe_multi interface issues for 5.18
Date: Wed, 18 May 2022 14:22:06 +0200	[thread overview]
Message-ID: <cover.1652876187.git.esyr@redhat.com> (raw)

Hello.

While [1] seems to require additional work[2] due to changes
in the interface (and it has already been re-targeted for bpf-next),
I would like to ask to consider the following two patches, that fix
possible out-of-bounds write and properly disable the interface
for 32-bit compat user space, for the 5.18 release.  Thank you.

[1] https://lore.kernel.org/lkml/cover.1652772731.git.esyr@redhat.com/
[2] https://lore.kernel.org/lkml/YoTXiAk1EpZ0rLKE@krava/

Eugene Syromiatnikov (2):
  bpf_trace: check size for overflow in bpf_kprobe_multi_link_attach
  bpf_trace: bail out from bpf_kprobe_multi_link_attach when in compat

 kernel/trace/bpf_trace.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

-- 
2.1.4


             reply	other threads:[~2022-05-18 12:22 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-18 12:22 Eugene Syromiatnikov [this message]
2022-05-18 12:22 ` [PATCH bpf v3 1/2] bpf_trace: check size for overflow in bpf_kprobe_multi_link_attach Eugene Syromiatnikov
2022-05-18 16:34   ` Yonghong Song
2022-05-18 20:00     ` Eugene Syromiatnikov
2022-05-18 20:41       ` Yonghong Song
2022-05-18 12:22 ` [PATCH bpf v3 2/2] bpf_trace: bail out from bpf_kprobe_multi_link_attach when in compat Eugene Syromiatnikov
2022-05-18 16:55   ` Yonghong Song
2022-05-18 20:03     ` Eugene Syromiatnikov
2022-05-18 20:57       ` Yonghong Song

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