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From: Steven Rostedt <rostedt@goodmis.org>
To: syzbot <syzbot+2990ca6e76c080858a9c@syzkaller.appspotmail.com>
Cc: akpm@linux-foundation.org, glider@google.com, hpa@zytor.com,
	jpoimboe@redhat.com, keescook@chromium.org,
	linux-kernel@vger.kernel.org, mbenes@suse.cz,
	mhiramat@kernel.org, mingo@redhat.com, netdev@vger.kernel.org,
	rppt@linux.ibm.com, syzkaller-bugs@googlegroups.com,
	tglx@linutronix.de, x86@kernel.org
Subject: Re: KASAN: stack-out-of-bounds Read in update_stack_state
Date: Fri, 20 Dec 2019 20:38:47 -0500	[thread overview]
Message-ID: <20191220203847.08267447@rorschach.local.home> (raw)
In-Reply-To: <000000000000a3c3ef059a1e4260@google.com>


What's the actual bug? "stack-out-of-bounds" is rather useless without
any actual output dump. But that's besides the point, this commit is
*extremely* unlikely to be the culprit.

-- Steve


On Fri, 20 Dec 2019 00:14:01 -0800
syzbot <syzbot+2990ca6e76c080858a9c@syzkaller.appspotmail.com> wrote:

> syzbot suspects this bug was fixed by commit:
> 
> commit 4ee7c60de83ac01fa4c33c55937357601631e8ad
> Author: Steven Rostedt (VMware) <rostedt@goodmis.org>
> Date:   Fri Mar 23 14:18:03 2018 +0000
> 
>      init, tracing: Add initcall trace events
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11ebd0aee00000
> start commit:   0b6b8a3d Merge branch 'bpf-misc-selftest-improvements'
> git tree:       bpf-next
> kernel config:  https://syzkaller.appspot.com/x/.config?x=82a189bf69e089b5
> dashboard link: https://syzkaller.appspot.com/bug?extid=2990ca6e76c080858a9c
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11dde5b3800000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1347b65d800000
> 
> If the result looks correct, please mark the bug fixed by replying with:
> 
> #syz fix: init, tracing: Add initcall trace events
> 
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection


  reply	other threads:[~2019-12-21  1:38 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <001a1143e62e6f71d20565bf329f@google.com>
2019-12-20  8:14 ` KASAN: stack-out-of-bounds Read in update_stack_state syzbot
2019-12-21  1:38   ` Steven Rostedt [this message]
2019-12-21  7:41     ` Dmitry Vyukov

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