From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Florent Revest <revest@chromium.org>
Cc: bpf <bpf@vger.kernel.org>, Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
KP Singh <kpsingh@kernel.org>,
Brendan Jackman <jackmanb@google.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH bpf-next] bpf: Lock bpf_trace_printk's tmp buf before it is written to
Date: Tue, 27 Apr 2021 08:07:57 -0700 [thread overview]
Message-ID: <CAADnVQJGMU2OAA4cRuD=LmfF3Wn5z0hqo1Uz9nx-K_KWuCA70A@mail.gmail.com> (raw)
In-Reply-To: <20210427112958.773132-1-revest@chromium.org>
On Tue, Apr 27, 2021 at 4:30 AM Florent Revest <revest@chromium.org> wrote:
>
> bpf_trace_printk uses a shared static buffer to hold strings before they
> are printed. A recent refactoring moved the locking of that buffer after
> it gets filled by mistake.
>
> Fixes: d9c9e4db186a ("bpf: Factorize bpf_trace_printk and bpf_seq_printf")
> Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
> Signed-off-by: Florent Revest <revest@chromium.org>
Applied.
Pls send v2 of bstr_printf series as soon as possible. Thanks!
next prev parent reply other threads:[~2021-04-27 15:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-27 11:29 [PATCH bpf-next] bpf: Lock bpf_trace_printk's tmp buf before it is written to Florent Revest
2021-04-27 15:07 ` Alexei Starovoitov [this message]
2021-04-27 15:20 ` Florent Revest
2021-04-27 15:23 ` Alexei Starovoitov
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