linux-kernel - Re: KASAN: stack-out-of-bounds Read in update_stack

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Message-ID: <000000000000a3c3ef059a1e4260@google.com>
Date:   Fri, 20 Dec 2019 00:14:01 -0800
From:   syzbot <syzbot+2990ca6e76c080858a9c@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, glider@...gle.com, hpa@...or.com,
        jpoimboe@...hat.com, keescook@...omium.org,
        linux-kernel@...r.kernel.org, mbenes@...e.cz, mhiramat@...nel.org,
        mingo@...hat.com, netdev@...r.kernel.org, rostedt@...dmis.org,
        rppt@...ux.ibm.com, syzkaller-bugs@...glegroups.com,
        tglx@...utronix.de, x86@...nel.org
Subject: Re: KASAN: stack-out-of-bounds Read in update_stack_state

syzbot suspects this bug was fixed by commit:

commit 4ee7c60de83ac01fa4c33c55937357601631e8ad
Author: Steven Rostedt (VMware) <rostedt@...dmis.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