Re: KMSAN: uninit-value in linear_transfer (2)

2018-11-09 Thread Takashi Iwai
On Fri, 09 Nov 2018 13:17:25 +0100, Alexander Potapenko wrote: > > > It's still strange that the conversion function gets called for the > > uninitialized source. But we should clear the vmalloc page in anyway > > for avoiding such a problem. And even better would be to use > > kvzalloc() for a

Re: KMSAN: uninit-value in linear_transfer (2)

2018-11-09 Thread Alexander Potapenko
On Fri, Nov 9, 2018 at 12:18 PM Takashi Iwai wrote: > > On Fri, 09 Nov 2018 10:31:03 +0100, > Alexander Potapenko wrote: > > > > On Thu, Nov 8, 2018 at 9:38 PM syzbot > > wrote: > > > > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit:7438a3b20295 kmsan: pri

Re: KMSAN: uninit-value in linear_transfer (2)

2018-11-09 Thread Takashi Iwai
On Fri, 09 Nov 2018 10:31:03 +0100, Alexander Potapenko wrote: > > On Thu, Nov 8, 2018 at 9:38 PM syzbot > wrote: > > > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit:7438a3b20295 kmsan: print user address when reporting info.. > > git tree: https://github.com

Re: KMSAN: uninit-value in linear_transfer (2)

2018-11-09 Thread Alexander Potapenko
On Thu, Nov 8, 2018 at 9:38 PM syzbot wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit:7438a3b20295 kmsan: print user address when reporting info.. > git tree: https://github.com/google/kmsan.git/master > console output: https://syzkaller.appspot.com/x/log.txt?x

KMSAN: uninit-value in linear_transfer (2)

2018-11-08 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:7438a3b20295 kmsan: print user address when reporting info.. git tree: https://github.com/google/kmsan.git/master console output: https://syzkaller.appspot.com/x/log.txt?x=15b4213340 kernel config: https://syzkaller.appspot.c