general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 PID: 165 Comm: kworker/u4:3 Not tainted 5.6.0-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_schedule_buff+0x3f4/0x1220 net/batman-adv/bat_iv_ogm.c:814
Code: 48 c1 ea 03 80 3c 02 00 0f 85 42 0d 00 00 49 8b af 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 16 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 fa
RSP: 0018:ffffc900012f7bd0 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110151ee971
RDX: 0000000000000002 RSI: ffffffff8797e789 RDI: 0000000000000016
RBP: 0000000000000000 R08: ffff8880a8f74300 R09: fffffbfff14cb929
R10: fffffbfff14cb928 R11: ffffffff8a65c947 R12: 0000000000000000
R13: ffff888099eb1800 R14: ffff88808ebebc00 R15: ffff888099eb1800
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc054abc30 CR3: 0000000062ed1000 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:865 [inline]
 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:858 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x5c8/0x7c0 net/batman-adv/bat_iv_ogm.c:1718
 process_one_work+0x94b/0x1690 kernel/workqueue.c:2264
 worker_thread+0x96/0xe20 kernel/workqueue.c:2410
 kthread+0x357/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 80cc50c41e46a8a3 ]---
RIP: 0010:batadv_iv_ogm_schedule_buff+0x3f4/0x1220 net/batman-adv/bat_iv_ogm.c:814
Code: 48 c1 ea 03 80 3c 02 00 0f 85 42 0d 00 00 49 8b af 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 16 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 fa
RSP: 0018:ffffc900012f7bd0 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110151ee971
RDX: 0000000000000002 RSI: ffffffff8797e789 RDI: 0000000000000016
RBP: 0000000000000000 R08: ffff8880a8f74300 R09: fffffbfff14cb929
R10: fffffbfff14cb928 R11: ffffffff8a65c947 R12: 0000000000000000
R13: ffff888099eb1800 R14: ffff88808ebebc00 R15: ffff888099eb1800
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc054abc30 CR3: 000000009f597000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400