[ 498.941866] syz-executor.3 (5912) used greatest stack depth: 24184 bytes left [ 499.770960] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 499.777827] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 499.786293] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 499.793006] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 499.800361] kasan: CONFIG_KASAN_INLINE enabled [ 499.802929] device bridge_slave_1 left promiscuous mode [ 499.803491] bridge0: port 2(bridge_slave_1) entered disabled state [ 499.817300] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 499.824839] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 499.831319] Modules linked in: [ 499.835355] CPU: 0 PID: 27 Comm: kworker/u4:2 Not tainted 4.8.0-syzkaller #0 [ 499.842601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 499.852065] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [ 499.859257] task: ffff88012b2d6700 task.stack: ffff88012b2e0000 [ 499.865281] RIP: 0010:[] [] batadv_iv_ogm_queue_add+0x2f/0x1150 [ 499.874641] RSP: 0018:ffff88012b2e7a58 EFLAGS: 00010292 [ 499.880060] RAX: dffffc0000000000 RBX: ffff880106df9300 RCX: ffff880106df9300 [ 499.887316] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 499.894566] RBP: ffff88012b2e7af8 R08: ffff880106df9300 R09: 0000000000000001 [ 499.901809] R10: ffff88012b2d6f60 R11: ffff88012b2d6700 R12: 000000000000003c [ 499.909142] R13: 0000000000000000 R14: ffff880106df9300 R15: ffff880128875e00 [ 499.918832] FS: 0000000000000000(0000) GS:ffff88012c000000(0000) knlGS:0000000000000000 [ 499.927026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 499.932907] CR2: 000055a44afe6230 CR3: 000000011be23000 CR4: 00000000001406f0 [ 499.940151] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 499.947391] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 499.954633] Stack: [ 499.956753] 0000000000000000 0000000000000000 0000000000000002 0000000000000000 [ 499.964765] ffff88012b2e7af8 0000000000000282 0000000000000000 ffffffff85c5fe8d [ 499.972742] ffff880100000000 00000000000003d4 0000000100004df3 ffff88012a18fdc0 [ 499.980760] Call Trace: [ 499.983319] [] ? batadv_iv_ogm_schedule+0x7cd/0xcc0 [ 499.989953] [] batadv_iv_ogm_schedule+0x95e/0xcc0 [ 499.997109] [] batadv_iv_send_outstanding_bat_ogm_packet+0x2d0/0xbe0 [ 500.005299] [] process_one_work+0x67d/0x14f0 [ 500.011327] [] ? process_one_work+0x5d2/0x14f0 [ 500.017546] [] ? cancel_delayed_work_sync+0x10/0x10 [ 500.024199] [] worker_thread+0xda/0xf10 [ 500.029800] [] ? process_one_work+0x14f0/0x14f0 [ 500.036093] [] kthread+0x209/0x2d0 [ 500.041300] [] ? kthread_create_on_node+0x390/0x390 [ 500.048015] [] ret_from_fork+0x1f/0x40 [ 500.053525] [] ? kthread_create_on_node+0x390/0x390 [ 500.060159] Code: 00 00 00 fc ff df 55 48 89 e5 41 57 49 89 ff 48 8d 7e 03 41 56 41 55 49 89 f5 41 54 41 89 d4 48 89 fa 48 c1 ea 03 53 48 83 ec 78 <0f> b6 04 02 48 89 fa 48 89 4d a8 83 e2 07 4c 89 45 b8 44 89 4d [ 500.087090] RIP [] batadv_iv_ogm_queue_add+0x2f/0x1150 [ 500.094110] RSP [ 500.098825] ---[ end trace 7c872a8f92fa6202 ]--- [ 500.103916] Kernel panic - not syncing: Fatal exception [ 500.110541] Kernel Offset: disabled