Re: idr: use-after-free write in ida_get_new_above

2017-03-05 Thread Dmitry Vyukov
--Original Message- >> From: Dmitry Vyukov [mailto:dvyu...@google.com] >> Sent: Friday, March 3, 2017 5:06 AM >> To: Matthew Wilcox ; Andrew Morton >> ; ross.zwis...@linux.intel.com; Johannes Weiner >> ; Jan Kara ; LKML > ker...@vger.kernel.org>; Tejun Heo

Re: idr: use-after-free write in ida_get_new_above

2017-03-03 Thread Dmitry Vyukov
On Fri, Mar 3, 2017 at 10:51 AM, Dmitry Vyukov wrote: > Hello, > > I am hitting the following use-after-free reports while running > syzkaller fuzzer on commit c82be9d2244aacea9851c86f4fb74694c99cd874: > > == > BUG: KASAN: use-after-f

RE: idr: use-after-free write in ida_get_new_above

2017-03-03 Thread Matthew Wilcox
..@linux.intel.com; Johannes Weiner > ; Jan Kara ; LKML ker...@vger.kernel.org>; Tejun Heo > Cc: syzkaller > Subject: Re: idr: use-after-free write in ida_get_new_above > > On Fri, Mar 3, 2017 at 10:51 AM, Dmitry Vyukov > wrote: > > Hello, > > >

idr: use-after-free write in ida_get_new_above

2017-03-03 Thread Dmitry Vyukov
Hello, I am hitting the following use-after-free reports while running syzkaller fuzzer on commit c82be9d2244aacea9851c86f4fb74694c99cd874: == BUG: KASAN: use-after-free in ida_get_new_above+0x564/0x9b0 lib/idr.c:295 at addr 8801