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

2019-05-06 Thread Wolfram Sang
> > The bug was bisected to: > > > > commit 0a1c7959acd9674a0e4e59f911f3e5fbf25fd693 > > Author: Wolfram Sang > > Date: Wed May 17 15:22:18 2017 + > > > > gpu: drm: tc35876x: move header file out of I2C realm > > Bisect seems to have gone off the rails. No idea where or why. Yes,

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

2019-05-06 Thread Daniel Vetter
On Sat, May 04, 2019 at 11:16:05AM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:a4ccb5f9 Merge tag 'drm-fixes-2019-05-03' of git://anongit.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1205d570a0 >

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

2019-05-06 Thread Tetsuo Handa
This seems to be triggered by "pkg/report: skip printk and other printing functions " on syzbot side. The fix should be "kobject: Don't trigger kobject_uevent(KOBJ_REMOVE) twice." in linux-next.git. #syz dup: KASAN: use-after-free Read in string ___

KASAN: use-after-free Read in add_uevent_var

2019-05-06 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:a4ccb5f9 Merge tag 'drm-fixes-2019-05-03' of git://anongit.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1205d570a0 kernel config: https://syzkaller.appspot.com/x/.config?x=2bd0da4b8de0b004