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Thu, 08 Feb 2024 07:32:04 -0800 (PST) Date: Thu, 08 Feb 2024 07:32:04 -0800 In-Reply-To: <000000000000b7b62e0610db6b8a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007cea730610e083e8@google.com> Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Write in __hci_acl_create_connection_sync From: syzbot To: davem@davemloft.net, edumazet@google.com, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, luiz.von.dentz@intel.com, marcel@holtmann.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, verdre@v0yd.nl Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable syzbot has bisected this issue to: commit 456561ba8e495e9320c1f304bf1cd3d1043cbe7b Author: Jonas Dre=C3=9Fler Date: Tue Feb 6 11:08:13 2024 +0000 Bluetooth: hci_conn: Only do ACL connections sequentially bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D154f85501800= 00 start commit: b1d3a0e70c38 Add linux-next specific files for 20240208 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=3D174f85501800= 00 console output: https://syzkaller.appspot.com/x/log.txt?x=3D134f8550180000 kernel config: https://syzkaller.appspot.com/x/.config?x=3Dbb693ba195662a0= 6 dashboard link: https://syzkaller.appspot.com/bug?extid=3D3f0a39be7a2035700= 868 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D11d95147e8000= 0 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D107c2d8fe80000 Reported-by: syzbot+3f0a39be7a2035700868@syzkaller.appspotmail.com Fixes: 456561ba8e49 ("Bluetooth: hci_conn: Only do ACL connections sequenti= ally") For information about bisection process see: https://goo.gl/tpsmEJ#bisectio= n