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: 1 PID: 26069 Comm: kworker/u4:2 Not tainted 4.19.107-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_schedule_buff+0xb56/0x11e0 net/batman-adv/bat_iv_ogm.c:1020
Code: 80 3c 28 00 0f 85 c0 05 00 00 48 8b 1b 48 81 fb 60 39 2c 8c 0f 84 c6 01 00 00 e8 e5 85 67 fa 48 8d 7b 78 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 a2 05 00 00 48 8b 04 24 48 8b 6b 78 80 38 00
RSP: 0018:ffff88820d83fbd0 EFLAGS: 00010206
RAX: 000000000000000f RBX: 0000000000000000 RCX: ffffffff87001480
RDX: 0000000000000000 RSI: ffffffff870012db RDI: 0000000000000078
RBP: 0000000000000000 R08: ffff8880900ce040 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808191cdb0
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880a4074040
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000071a158 CR3: 0000000054df8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:1046 [inline]
 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:1039 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x5e0/0x7a0 net/batman-adv/bat_iv_ogm.c:1865
 process_one_work+0x91f/0x1640 kernel/workqueue.c:2153
 worker_thread+0x96/0xe20 kernel/workqueue.c:2296
 kthread+0x34a/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace 8d6919698782be88 ]---
RIP: 0010:batadv_iv_ogm_schedule_buff+0xb56/0x11e0 net/batman-adv/bat_iv_ogm.c:1020
Code: 80 3c 28 00 0f 85 c0 05 00 00 48 8b 1b 48 81 fb 60 39 2c 8c 0f 84 c6 01 00 00 e8 e5 85 67 fa 48 8d 7b 78 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 a2 05 00 00 48 8b 04 24 48 8b 6b 78 80 38 00
RSP: 0018:ffff88820d83fbd0 EFLAGS: 00010206
RAX: 000000000000000f RBX: 0000000000000000 RCX: ffffffff87001480
RDX: 0000000000000000 RSI: ffffffff870012db RDI: 0000000000000078
RBP: 0000000000000000 R08: ffff8880900ce040 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808191cdb0
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880a4074040
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000071a158 CR3: 0000000054df8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400