Re: WARNING in tty_set_ldisc

2018-04-05 Thread Alan Cox
rror pointer dereference at tty_ldisc_restore(). > > syzbot is reporting crashes [1] triggered by memory allocation failure at > tty_ldisc_get() from tty_ldisc_restore(). While syzbot stops at WARN_ON() > due to panic_on_warn == true, panic_on_warn == false will after all trigger > an OOPS by dere

Re: WARNING in tty_set_ldisc

2018-04-05 Thread Tetsuo Handa
On 2017/11/05 19:34, Greg KH wrote: > On Sun, Nov 05, 2017 at 01:45:01AM -0700, syzbot wrote: >> Hello, >> >> syzkaller hit the following crash on >> 9c323bff13f92832e03657cabdd70d731408d621 >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master >> compiler: gcc (GCC) 7.1.1 2017

Re: WARNING in tty_set_ldisc

2017-11-06 Thread Dmitry Vyukov
On Sun, Nov 5, 2017 at 11:34 AM, Greg KH wrote: > On Sun, Nov 05, 2017 at 01:45:01AM -0700, syzbot wrote: >> Hello, >> >> syzkaller hit the following crash on >> 9c323bff13f92832e03657cabdd70d731408d621 >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master >> compiler: gcc (GC

Re: WARNING in tty_set_ldisc

2017-11-05 Thread Greg KH
On Sun, Nov 05, 2017 at 01:45:01AM -0700, syzbot wrote: > Hello, > > syzkaller hit the following crash on > 9c323bff13f92832e03657cabdd70d731408d621 > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached > Raw console ou