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

2018-11-20 Thread Dmitry Vyukov
On Tue, Nov 20, 2018 at 12:08 PM, Jeff Layton wrote: > On Tue, 2018-11-20 at 07:57 +0100, Dmitry Vyukov wrote: >> On Sat, Nov 17, 2018 at 3:03 PM, Bruce Fields wrote: >> > On Sat, Nov 17, 2018 at 08:33:27AM -0500, Jeff Layton wrote: >> > > Thanks for the explanation, Dmitry. I've added the tag to

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

2018-11-20 Thread Jeff Layton
On Tue, 2018-11-20 at 07:57 +0100, Dmitry Vyukov wrote: > On Sat, Nov 17, 2018 at 3:03 PM, Bruce Fields wrote: > > On Sat, Nov 17, 2018 at 08:33:27AM -0500, Jeff Layton wrote: > > > Thanks for the explanation, Dmitry. I've added the tag to the patch in > > > my tree. It should show up in linux-nex

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

2018-11-19 Thread Dmitry Vyukov
On Sat, Nov 17, 2018 at 3:03 PM, Bruce Fields wrote: > On Sat, Nov 17, 2018 at 08:33:27AM -0500, Jeff Layton wrote: >> Thanks for the explanation, Dmitry. I've added the tag to the patch in >> my tree. It should show up in linux-next soon. >> >> I still find it a little misleading to say that syzb

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

2018-11-17 Thread Bruce Fields
On Sat, Nov 17, 2018 at 08:33:27AM -0500, Jeff Layton wrote: > Thanks for the explanation, Dmitry. I've added the tag to the patch in > my tree. It should show up in linux-next soon. > > I still find it a little misleading to say that syzbot reported a bug > when it actually found a bug inside an

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

2018-11-17 Thread Jeff Layton
On Fri, 2018-11-16 at 12:37 -0800, Dmitry Vyukov wrote: > On Thu, Nov 15, 2018 at 3:41 PM, NeilBrown wrote: > > On Thu, Nov 15 2018, Dmitry Vyukov wrote: > > > > > On Wed, Nov 14, 2018 at 2:36 AM, Jeff Layton wrote: > > > > On Wed, 2018-11-14 at 07:40 +1100, NeilBrown wrote: > > > > > On Tue, No

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

2018-11-16 Thread Dmitry Vyukov
On Thu, Nov 15, 2018 at 3:41 PM, NeilBrown wrote: > On Thu, Nov 15 2018, Dmitry Vyukov wrote: > >> On Wed, Nov 14, 2018 at 2:36 AM, Jeff Layton wrote: >>> On Wed, 2018-11-14 at 07:40 +1100, NeilBrown wrote: On Tue, Nov 13 2018, Jeff Layton wrote: > On Mon, 2018-11-12 at 12:34 -0800

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

2018-11-15 Thread NeilBrown
On Thu, Nov 15 2018, Dmitry Vyukov wrote: > On Wed, Nov 14, 2018 at 2:36 AM, Jeff Layton wrote: >> On Wed, 2018-11-14 at 07:40 +1100, NeilBrown wrote: >>> On Tue, Nov 13 2018, Jeff Layton wrote: >>> >>> > On Mon, 2018-11-12 at 12:34 -0800, syzbot wrote: >>> > > Hello, >>> > > >>> > > syzbot found

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

2018-11-15 Thread Dmitry Vyukov
On Wed, Nov 14, 2018 at 2:36 AM, Jeff Layton wrote: > On Wed, 2018-11-14 at 07:40 +1100, NeilBrown wrote: >> On Tue, Nov 13 2018, Jeff Layton wrote: >> >> > On Mon, 2018-11-12 at 12:34 -0800, syzbot wrote: >> > > Hello, >> > > >> > > syzbot found the following crash on: >> > > >> > > HEAD commit:

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

2018-11-14 Thread Jeff Layton
On Wed, 2018-11-14 at 07:40 +1100, NeilBrown wrote: > On Tue, Nov 13 2018, Jeff Layton wrote: > > > On Mon, 2018-11-12 at 12:34 -0800, syzbot wrote: > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit:442b8cea2477 Add linux-next specific files for 20181109 >

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

2018-11-13 Thread NeilBrown
On Tue, Nov 13 2018, Jeff Layton wrote: > On Mon, 2018-11-12 at 12:34 -0800, syzbot wrote: >> Hello, >> >> syzbot found the following crash on: >> >> HEAD commit:442b8cea2477 Add linux-next specific files for 20181109 >> git tree: linux-next >> console output: https://syzkaller.appspot

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

2018-11-13 Thread syzbot
syzbot has found a reproducer for the following crash on: HEAD commit:442b8cea2477 Add linux-next specific files for 20181109 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12fbd90540 kernel config: https://syzkaller.appspot.com/x/.config?x=2f72bdb11

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

2018-11-13 Thread Jeff Layton
On Mon, 2018-11-12 at 12:34 -0800, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:442b8cea2477 Add linux-next specific files for 20181109 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=115dbad540 > kernel config:

KASAN: use-after-free Read in locks_delete_block

2018-11-12 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:442b8cea2477 Add linux-next specific files for 20181109 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=115dbad540 kernel config: https://syzkaller.appspot.com/x/.config?x=2f72bdb11df9fbe8 dashb