netdev - Re: [syzbot] KASAN: use-after-free Read in j1939_xtp_rx_dat

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Date:   Sat, 28 May 2022 08:54:06 -0700
From:   syzbot <syzbot+a9dce1ff45c3bbeceb3a@...kaller.appspotmail.com>
To:     davem@...emloft.net, elver@...gle.com, hdanton@...a.com,
        john.ogness@...utronix.de, kernel@...gutronix.de, kuba@...nel.org,
        linux-can@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux@...pel-privat.de, mkl@...gutronix.de, netdev@...r.kernel.org,
        pabeni@...hat.com, pmladek@...e.com, robin@...tonic.nl,
        rostedt@...dmis.org, socketcan@...tkopp.net,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] KASAN: use-after-free Read in j1939_xtp_rx_dat_one (3)

syzbot suspects this issue was fixed by commit:

commit 701850dc0c31bfadf75a0a74af7d2c97859945ec
Author: Marco Elver <elver@...gle.com>
Date:   Tue May 3 07:38:44 2022 +0000

    printk, tracing: fix console tracepoint

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=153df725f00000
start commit:   ae085d7f9365 mm: kfence: fix missing objcg housekeeping fo..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=6bae4cd50262530e
dashboard link: https://syzkaller.appspot.com/bug?extid=a9dce1ff45c3bbeceb3a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12529653700000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14b64ea5700000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: printk, tracing: fix console tracepoint

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