[ 42.931880] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.941110] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 42.951139] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.960269] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 42.970419] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.980168] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 42.987584] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 42.996060] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 43.004319] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 189.842938] NOHZ: local_softirq_pending 08 [ 459.825557] syz-executor.0 (6477) used greatest stack depth: 23776 bytes left [ 459.833708] syz-executor.2 (6459) used greatest stack depth: 23728 bytes left [ 460.207068] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 460.213782] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 460.220912] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 460.227652] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 460.235463] kasan: CONFIG_KASAN_INLINE enabled [ 460.240047] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 460.248422] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 460.254659] CPU: 1 PID: 23 Comm: kworker/u4:1 Not tainted 4.19.0-rc6-syzkaller #0 [ 460.262248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 460.271708] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [ 460.278785] RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 [ 460.284305] Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 99 0b 00 00 [ 460.303208] RSP: 0018:ffff8800a99bfac0 EFLAGS: 00010246 [ 460.308559] RAX: dffffc0000000000 RBX: ffff8800884ae040 RCX: 0000000000000000 [ 460.315909] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 460.323151] RBP: ffff8800a99bfbd8 R08: ffff880086bee840 R09: 0000000000000001 [ 460.330395] R10: ffffed0015337f8f R11: 0000000000000003 R12: ffff880086bee840 [ 460.337663] R13: dffffc0000000000 R14: ffffed0010d7dd16 R15: 000000000000003c [ 460.344929] FS: 0000000000000000(0000) GS:ffff8800aeb00000(0000) knlGS:0000000000000000 [ 460.353148] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 460.359007] CR2: 00007f0379b39000 CR3: 00000000978b2000 CR4: 00000000001406e0 [ 460.366253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 460.373494] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 460.380736] Call Trace: [ 460.383373] ? __rcu_report_exp_rnp+0x150/0x1b0 [ 460.388018] ? rcu_read_unlock_special+0x82c/0xf30 [ 460.393026] ? trace_hardirqs_on+0x28/0x190 [ 460.397339] ? rcu_report_exp_cpu_mult+0x63/0xa0 [ 460.402068] ? batadv_iv_ogm_iface_enable+0x370/0x370 [ 460.407261] ? lock_acquire+0x180/0x3a0 [ 460.411222] ? batadv_iv_ogm_schedule+0x916/0xe80 [ 460.416045] batadv_iv_ogm_schedule+0xb47/0xe80 [ 460.420685] ? batadv_iv_ogm_queue_add+0xe50/0xe50 [ 460.425603] batadv_iv_send_outstanding_bat_ogm_packet+0x4a2/0x7a0 [ 460.431952] ? process_one_work+0x71b/0x14f0 [ 460.436335] ? trace_hardirqs_on+0x28/0x190 [ 460.440627] process_one_work+0x7b9/0x14f0 [ 460.444833] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 460.449488] ? lock_acquire+0x180/0x3a0 [ 460.453469] ? kasan_check_write+0x14/0x20 [ 460.457675] ? do_raw_spin_lock+0xc1/0x200 [ 460.461893] worker_thread+0x85/0xb60 [ 460.465691] ? __kthread_parkme+0x47/0x190 [ 460.469932] kthread+0x324/0x3e0 [ 460.473289] ? process_one_work+0x14f0/0x14f0 [ 460.477756] ? kthread_park+0x120/0x120 [ 460.481741] ret_from_fork+0x24/0x30 [ 460.485443] Modules linked in: [ 460.489045] ---[ end trace 06d65fdbe4b642f7 ]--- [ 460.493806] RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 [ 460.499293] Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 99 0b 00 00 [ 460.518253] RSP: 0018:ffff8800a99bfac0 EFLAGS: 00010246 [ 460.523618] RAX: dffffc0000000000 RBX: ffff8800884ae040 RCX: 0000000000000000 [ 460.530911] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 460.538236] RBP: ffff8800a99bfbd8 R08: ffff880086bee840 R09: 0000000000000001 [ 460.545570] R10: ffffed0015337f8f R11: 0000000000000003 R12: ffff880086bee840 [ 460.552826] R13: dffffc0000000000 R14: ffffed0010d7dd16 R15: 000000000000003c [ 460.560142] FS: 0000000000000000(0000) GS:ffff8800aeb00000(0000) knlGS:0000000000000000 [ 460.568383] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 460.574261] CR2: 00007f0379b39000 CR3: 00000000978b2000 CR4: 00000000001406e0 [ 460.581573] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 460.588895] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 460.596210] Kernel panic - not syncing: Fatal exception [ 460.602695] Kernel Offset: disabled [ 460.607276] Rebooting in 86400 seconds..