linux-kernel - Re: [syzbot] [net?] KASAN: slab-use-after-free Read in ptp

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Message-ID: <000000000000e08cbb060c2ea1ca@google.com>
Date:   Sun, 10 Dec 2023 13:38:04 -0800
From:   syzbot <syzbot+9704e6f099d952508943@...kaller.appspotmail.com>
To:     davem@...emloft.net, eadavis@...com, eadavis@...a.com,
        kuba@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, reibax@...il.com, richardcochran@...il.com,
        syzkaller-bugs@...glegroups.com, twuufnxlz@...il.com,
        wojciech.drewek@...el.com
Subject: Re: [syzbot] [net?] KASAN: slab-use-after-free Read in ptp_read

syzbot suspects this issue was fixed by commit:

commit b714ca2ccf6a90733f6ceb14abb6ce914f8832c3
Author: Edward Adam Davis <eadavis@...com>
Date:   Tue Nov 7 08:00:40 2023 +0000

    ptp: ptp_read should not release queue

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10477d6ce80000
start commit:   4bbdb725a36b Merge tag 'iommu-updates-v6.7' of git://git.k..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=beb32a598fd79db9
dashboard link: https://syzkaller.appspot.com/bug?extid=9704e6f099d952508943
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17233388e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17a3f898e80000

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

#syz fix: ptp: ptp_read should not release queue

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