Re: [PATCH] Bluetooth: hci_ldisc: check for missing tty operations

2019-07-06 Thread Vladis Dronov
gt; , "Ilya Faenson" > Sent: Saturday, July 6, 2019 12:35:39 PM > Subject: Re: [PATCH] Bluetooth: hci_ldisc: check for missing tty operations > > Hi Vladis, > > > Certain ttys lack operations (eg: pty_unix98_ops) which still can be > > called by certain hci ua

Re: [PATCH] Bluetooth: hci_ldisc: check for missing tty operations

2019-07-06 Thread Marcel Holtmann
Hi Vladis, > Certain ttys lack operations (eg: pty_unix98_ops) which still can be > called by certain hci uart proto (eg: mrvl, ath). Currently this leads > to execution at address 0x0. Fix this by adding checks for missing tty > operations. so I really prefer that we just fail setting the line d

[PATCH] Bluetooth: hci_ldisc: check for missing tty operations

2019-06-25 Thread Vladis Dronov
Certain ttys lack operations (eg: pty_unix98_ops) which still can be called by certain hci uart proto (eg: mrvl, ath). Currently this leads to execution at address 0x0. Fix this by adding checks for missing tty operations. Link: https://syzkaller.appspot.com/bug?id=1b42faa2848963564a5b1b7f8c837ea