linux-kernel - Re: KASAN: slab-out-of-bounds Read in _decode

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Date:   Thu, 21 Mar 2019 16:08:00 -0700
From:   syzbot <syzbot+240f9766d6be3d69431e@...kaller.appspotmail.com>
To:     bhelgaas@...gle.com, daniel@...earbox.net, davem@...emloft.net,
        devel@...ica.org, herbert@...dor.apana.org.au,
        kuznet@....inr.ac.ru, lenb@...nel.org, linux-acpi@...r.kernel.org,
        linux-can@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, lv.zheng@...el.com, mkl@...gutronix.de,
        netdev@...r.kernel.org, rafael.j.wysocki@...el.com,
        rjw@...ysocki.net, robert.moore@...el.com, socketcan@...tkopp.net,
        steffen.klassert@...unet.com, syzkaller-bugs@...glegroups.com,
        yoshfuji@...ux-ipv6.org
Subject: Re: KASAN: slab-out-of-bounds Read in _decode_session6 (2)

syzbot has bisected this bug to:

commit 64fd1c7040880292710e6592ddc88d0d73cfb6fb
Author: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Date:   Mon Jun 12 20:48:41 2017 +0000

     ACPI / PM: Run wakeup notify handlers synchronously

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1555b12b200000
start commit:   64fd1c70 ACPI / PM: Run wakeup notify handlers synchronously
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1755b12b200000
console output: https://syzkaller.appspot.com/x/log.txt?x=1355b12b200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=93932074d01b4a5
dashboard link: https://syzkaller.appspot.com/bug?extid=240f9766d6be3d69431e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13f35e4d400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1280edbd400000

Reported-by: syzbot+240f9766d6be3d69431e@...kaller.appspotmail.com
Fixes: 64fd1c704088 ("ACPI / PM: Run wakeup notify handlers synchronously")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection