8021q: adding VLAN 0 to HW filter on device batadv0
divide error: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 10407 Comm: syz-executor.5 Not tainted 4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
task: ffff888056678040 task.stack: ffff888056170000
RIP: 0010:fbcon_init+0xcb4/0x1cc0 drivers/video/fbdev/core/fbcon.c:1065
RSP: 0018:ffff8880561777e0 EFLAGS: 00010246
RAX: 0000000000000030 RBX: ffff8880b0a2b000 RCX: ffffc90005fde000
RDX: 0000000000000000 RSI: ffff888098fc18f4 RDI: ffff8880b0a2b1b8
RBP: ffff888098fc1540 R08: ffffffff8b9dc9f0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882388d08c0
R13: 0000000000000008 R14: ffff888098fc1874 R15: 0000000000000030
FS:  00007ff6042b5700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000a2c2c000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 visual_init+0x332/0x5e0 drivers/tty/vt/vt.c:746
 vc_allocate+0x2c5/0x640 drivers/tty/vt/vt.c:802
 con_install+0x4d/0x450 drivers/tty/vt/vt.c:2916
 tty_driver_install_tty drivers/tty/tty_io.c:1225 [inline]
 tty_init_dev.part.0+0x99/0x400 drivers/tty/tty_io.c:1338
 tty_init_dev drivers/tty/tty_io.c:1328 [inline]
 tty_open_by_driver drivers/tty/tty_io.c:1973 [inline]
 tty_open+0x669/0x8b0 drivers/tty/tty_io.c:2021
 chrdev_open+0x23c/0x6d0 fs/char_dev.c:423
 do_dentry_open+0x44b/0xec0 fs/open.c:777
 vfs_open+0x105/0x220 fs/open.c:888
 do_last fs/namei.c:3428 [inline]
 path_openat+0x628/0x2970 fs/namei.c:3571
 do_filp_open+0x179/0x3c0 fs/namei.c:3605
 do_sys_open+0x296/0x410 fs/open.c:1081
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7ff6058f4654
RSP: 002b:00007ff6042b4ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ff605a62f80 RCX: 00007ff6058f4654
RDX: 0000000000000002 RSI: 00007ff6042b4d40 RDI: 00000000ffffff9c
RBP: 00007ff6042b4d40 R08: 0000000000000000 R09: 000000000000000e
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007ffd552a371f R14: 00007ff6042b5300 R15: 0000000000022000
Code: 54 24 30 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 8d 0d 00 00 31 d2 44 89 f8 48 8b 74 24 38 <f7> b5 b0 03 00 00 48 89 f2 48 c1 ea 03 89 44 24 30 48 b8 00 00 
RIP: fbcon_init+0xcb4/0x1cc0 drivers/video/fbdev/core/fbcon.c:1065 RSP: ffff8880561777e0
---[ end trace 6e97f082fb6d6834 ]---
----------------
Code disassembly (best guess):
   0:	54                   	push   %rsp
   1:	24 30                	and    $0x30,%al
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df
   d:	48 c1 ea 03          	shr    $0x3,%rdx
  11:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
  15:	84 c0                	test   %al,%al
  17:	74 08                	je     0x21
  19:	3c 03                	cmp    $0x3,%al
  1b:	0f 8e 8d 0d 00 00    	jle    0xdae
  21:	31 d2                	xor    %edx,%edx
  23:	44 89 f8             	mov    %r15d,%eax
  26:	48 8b 74 24 38       	mov    0x38(%rsp),%rsi
* 2b:	f7 b5 b0 03 00 00    	divl   0x3b0(%rbp) <-- trapping instruction
  31:	48 89 f2             	mov    %rsi,%rdx
  34:	48 c1 ea 03          	shr    $0x3,%rdx
  38:	89 44 24 30          	mov    %eax,0x30(%rsp)
  3c:	48                   	rex.W
  3d:	b8                   	.byte 0xb8