kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10425 Comm: kworker/u4:5 Not tainted 5.3.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xec0 net/batman-adv/bat_iv_ogm.c:599 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 cb 0b 00 00 RSP: 0018:ffff8880b15f7ac0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff888097c8ed00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8880b15f7bd8 R08: ffff888097c8ed00 R09: 0000000000000001 R10: ffffed10162bef8f R11: 0000000000000003 R12: ffff888097c8ed00 R13: dffffc0000000000 R14: ffff8880a5ce8b40 R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8880ba200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3732e85000 CR3: 00000000a3df7000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_ogm_schedule+0xb47/0xe80 net/batman-adv/bat_iv_ogm.c:807 batadv_iv_send_outstanding_bat_ogm_packet+0x54c/0x780 net/batman-adv/bat_iv_ogm.c:1669 process_one_work+0x7d2/0x1560 kernel/workqueue.c:2269 worker_thread+0x85/0xb60 kernel/workqueue.c:2415 kthread+0x331/0x3f0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace a95b82a1ec97a07a ]--- RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xec0 net/batman-adv/bat_iv_ogm.c:599 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 cb 0b 00 00 RSP: 0018:ffff8880b15f7ac0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff888097c8ed00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8880b15f7bd8 R08: ffff888097c8ed00 R09: 0000000000000001 R10: ffffed10162bef8f R11: 0000000000000003 R12: ffff888097c8ed00 R13: dffffc0000000000 R14: ffff8880a5ce8b40 R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8880ba200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3732e85000 CR3: 00000000b35fe000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400