bridge0: port 1(bridge_slave_0) entered disabled state
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
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: 27239 Comm: kworker/u4:2 Not tainted 4.19.98-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+0x3d5/0x12b0 net/batman-adv/bat_iv_ogm.c:995
Code: c1 ea 03 80 3c 02 00 0f 85 6e 0e 00 00 4d 8b a7 90 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 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 86
RSP: 0018:ffff88805b44fbb0 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11014aeb18e
RDX: 0000000000000002 RSI: ffffffff8734e019 RDI: 0000000000000016
RBP: ffff88805b44fcb8 R08: ffff8880a5758400 R09: 0000000000000003
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000
R13: 0000000000000001 R14: ffff88805b44fc50 R15: ffff88808fa2e000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c428941e40 CR3: 000000008fff2000 CR4: 00000000001406f0
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+0x5f2/0x7b0 net/batman-adv/bat_iv_ogm.c:1865
 process_one_work+0x989/0x1750 kernel/workqueue.c:2153
 worker_thread+0x98/0xe40 kernel/workqueue.c:2296
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace 81dfa7b2a1d785fc ]---
RIP: 0010:batadv_iv_ogm_schedule_buff+0x3d5/0x12b0 net/batman-adv/bat_iv_ogm.c:995
Code: c1 ea 03 80 3c 02 00 0f 85 6e 0e 00 00 4d 8b a7 90 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 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 86
RSP: 0018:ffff88805b44fbb0 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11014aeb18e
RDX: 0000000000000002 RSI: ffffffff8734e019 RDI: 0000000000000016
RBP: ffff88805b44fcb8 R08: ffff8880a5758400 R09: 0000000000000003
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000
R13: 0000000000000001 R14: ffff88805b44fc50 R15: ffff88808fa2e000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c428941e40 CR3: 000000008fff2000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400