Re: KASAN: use-after-free Read in iowarrior_disconnect

2019-08-20 Thread Alan Stern
On Tue, 20 Aug 2019, Oliver Neukum wrote: > Am Dienstag, den 20.08.2019, 10:18 -0400 schrieb Alan Stern: > > On Mon, 19 Aug 2019, Oliver Neukum wrote: > > > > > Am Montag, den 19.08.2019, 07:48 -0700 schrieb syzbot: > > > > Hello, > > > > > > > > syzbot found the following crash on: > > > > > >

Re: KASAN: use-after-free Read in iowarrior_disconnect

2019-08-20 Thread Oliver Neukum
Am Dienstag, den 20.08.2019, 16:38 +0200 schrieb Oliver Neukum: > Am Dienstag, den 20.08.2019, 10:18 -0400 schrieb Alan Stern: > > On Mon, 19 Aug 2019, Oliver Neukum wrote: > > > > > Am Montag, den 19.08.2019, 07:48 -0700 schrieb syzbot: > > > > Hello, > > > > > > > > syzbot found the following c

Re: KASAN: use-after-free Read in iowarrior_disconnect

2019-08-20 Thread Oliver Neukum
Am Dienstag, den 20.08.2019, 10:18 -0400 schrieb Alan Stern: > On Mon, 19 Aug 2019, Oliver Neukum wrote: > > > Am Montag, den 19.08.2019, 07:48 -0700 schrieb syzbot: > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit:d0847550 usb-fuzzer: main usb gadget fuz

Re: KASAN: use-after-free Read in iowarrior_disconnect

2019-08-20 Thread Alan Stern
Oops, I replied to the wrong email message -- sorry. This was intended to be about the problem with the yurex driver, not the iowarrior driver. Alan Stern On Tue, 20 Aug 2019, Alan Stern wrote: > On Mon, 19 Aug 2019, Oliver Neukum wrote: > > > Am Montag, den 19.08.2019, 07:48 -0700 schrieb sy

Re: KASAN: use-after-free Read in iowarrior_disconnect

2019-08-20 Thread Alan Stern
On Mon, 19 Aug 2019, Oliver Neukum wrote: > Am Montag, den 19.08.2019, 07:48 -0700 schrieb syzbot: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit:d0847550 usb-fuzzer: main usb gadget fuzzer driver > > git tree: https://github.com/google/kasan.git usb-fuzzer

Re: KASAN: use-after-free Read in iowarrior_disconnect

2019-08-19 Thread syzbot
Hello, syzbot has tested the proposed patch but the reproducer still triggered crash: possible deadlock in usb_deregister_dev usb 4-1: USB disconnect, device number 2 == WARNING: possible circular locking dependency detected 5.3.0-rc4+ #1 No

Re: KASAN: use-after-free Read in iowarrior_disconnect

2019-08-19 Thread Oliver Neukum
Am Montag, den 19.08.2019, 07:48 -0700 schrieb syzbot: > Hello, > > syzbot found the following crash on: > > HEAD commit:d0847550 usb-fuzzer: main usb gadget fuzzer driver > git tree: https://github.com/google/kasan.git usb-fuzzer > console output: https://syzkaller.appspot.com/x/log.tx