Re: KASAN warning in bt_for_each

2019-02-14 Thread Bart Van Assche
On Thu, 2019-02-14 at 13:50 -0700, Jens Axboe wrote: > On 2/14/19 1:45 PM, Evan Green wrote: > > On Thu, Feb 14, 2019 at 11:33 AM Bart Van Assche wrote: > > > > > > On Thu, 2019-02-14 at 10:04 -0800, Evan Green wrote: > > > > Greetings, block experts! > > > > > > > > I'm trying to track down a K

Re: KASAN warning in bt_for_each

2019-02-14 Thread Jens Axboe
On 2/14/19 1:45 PM, Evan Green wrote: > On Thu, Feb 14, 2019 at 11:33 AM Bart Van Assche wrote: >> >> On Thu, 2019-02-14 at 10:04 -0800, Evan Green wrote: >>> Greetings, block experts! >>> >>> I'm trying to track down a KASAN warning I'm seeing in our downstream >>> 4.19 kernel, and I could use a

Re: KASAN warning in bt_for_each

2019-02-14 Thread Evan Green
On Thu, Feb 14, 2019 at 11:33 AM Bart Van Assche wrote: > > On Thu, 2019-02-14 at 10:04 -0800, Evan Green wrote: > > Greetings, block experts! > > > > I'm trying to track down a KASAN warning I'm seeing in our downstream > > 4.19 kernel, and I could use a little help. The warning looks like > > th

Re: KASAN warning in bt_for_each

2019-02-14 Thread Bart Van Assche
On Thu, 2019-02-14 at 10:04 -0800, Evan Green wrote: > Greetings, block experts! > > I'm trying to track down a KASAN warning I'm seeing in our downstream > 4.19 kernel, and I could use a little help. The warning looks like > this: > > [ 224.564894] BUG: KASAN: use-after-free in bt_for_each+0x1a

KASAN warning in bt_for_each

2019-02-14 Thread Evan Green
Greetings, block experts! I'm trying to track down a KASAN warning I'm seeing in our downstream 4.19 kernel, and I could use a little help. The warning looks like this: [ 224.564894] BUG: KASAN: use-after-free in bt_for_each+0x1ac/0x28c [ 224.571195] Read of size 8 at addr ffc17c621340 by t