On 4/18/17 2:43 PM, Andrey Konovalov wrote: > I've finally managed to reproduce one of the crashes on commit > 4f7d029b9bf009fbee76bb10c0c4351a1870d2f3 (4.11-rc7). > > I'm not sure if this bug has the same root cause as the first one > reported in this thread, but it definitely has to do with ipv6 > routing. > > C reproducer, syzkaller program and my .config are attached. > > Thanks! > > kasan: CONFIG_KASAN_INLINE enabled > kasan: GPF could be caused by NULL-ptr deref or user memory access > general protection fault: 0000 [#1] SMP KASAN > Modules linked in: > CPU: 1 PID: 4035 Comm: a.out Not tainted 4.11.0-rc7+ #250 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 > task: ffff880069809600 task.stack: ffff880062dc8000 > RIP: 0010:ip6_rt_cache_alloc+0xa6/0x560 net/ipv6/route.c:975
>From a quick glance seems to be a different bug than Dmitry's.