linux-kernel - Re: general protection fault in delayed_uprobe

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Message-ID: <000000000000737c07058498aea1@google.com>
Date:   Thu, 21 Mar 2019 04:03:00 -0700
From:   syzbot <syzbot+eab6e18f95a9fe69005e@...kaller.appspotmail.com>
To:     acme@...nel.org, alexander.shishkin@...ux.intel.com,
        jolsa@...hat.com, linux-kernel@...r.kernel.org, mingo@...hat.com,
        namhyung@...nel.org, oleg@...hat.com, peterz@...radead.org,
        ravi.bangoria@...ux.ibm.com, rostedt@...dmis.org,
        songliubraving@...com, syzkaller-bugs@...glegroups.com
Subject: Re: general protection fault in delayed_uprobe_remove

syzbot has bisected this bug to:

commit a6ca88b241d5e929e6e60b12ad8cd288f0ffa256
Author: Song Liu <songliubraving@...com>
Date:   Tue Oct 2 05:36:36 2018 +0000

     trace_uprobe: support reference counter in fd-based uprobe

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12c86993200000
start commit:   a6ca88b2 trace_uprobe: support reference counter in fd-bas..
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=11c86993200000
console output: https://syzkaller.appspot.com/x/log.txt?x=16c86993200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2a22859d870756c1
dashboard link: https://syzkaller.appspot.com/bug?extid=eab6e18f95a9fe69005e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=137174f5400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1278485d400000

Reported-by: syzbot+eab6e18f95a9fe69005e@...kaller.appspotmail.com
Fixes: a6ca88b241d5 ("trace_uprobe: support reference counter in fd-based  
uprobe")