------------[ cut here ]------------
field width 38835187 out of range
WARNING: lib/vsprintf.c:2654 at set_field_width lib/vsprintf.c:2654 [inline], CPU#0: syz.1.1100/9494
WARNING: lib/vsprintf.c:2654 at set_field_width lib/vsprintf.c:2651 [inline], CPU#0: syz.1.1100/9494
WARNING: lib/vsprintf.c:2654 at vsnprintf+0x106b/0x1300 lib/vsprintf.c:2918, CPU#0: syz.1.1100/9494
Modules linked in:
CPU: 0 UID: 0 PID: 9494 Comm: syz.1.1100 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:set_field_width lib/vsprintf.c:2654 [inline]
RIP: 0010:set_field_width lib/vsprintf.c:2651 [inline]
RIP: 0010:vsnprintf+0x106e/0x1300 lib/vsprintf.c:2918
Code: 74 08 48 89 df e8 22 64 b0 f6 44 89 74 24 4c 44 0f b6 2b 49 89 de e9 f6 f3 ff ff e8 ec f4 3d f6 48 8d 3d 05 71 8a 05 44 89 ee <67> 48 0f b9 3a 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03
RSP: 0018:ffffc9000f4ef1a0 EFLAGS: 00010087
RAX: 0000000000001cac RBX: ffffffff8ceb5ec2 RCX: ffffc90024c69000
RDX: 0000000000080000 RSI: 00000000025093f3 RDI: ffffffff91580d10
RBP: ffffc9000f4ef290 R08: 0000000000000004 R09: 00000000025093f3
R10: 00000000007fffff R11: 0000000000000001 R12: 0000000000000002
R13: 00000000025093f3 R14: 0000000000000030 R15: 00000000007fffff
FS:  0000000000000000(0000) GS:ffff888096955000(0063) knlGS:00000000f53d5b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000c3d57c7 CR3: 0000000056459000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 va_format+0x14e/0x4b0 lib/vsprintf.c:1725
 pointer+0x929/0xe50 lib/vsprintf.c:2577
 vsnprintf+0x649/0x1300 lib/vsprintf.c:2953
 vprintk_store+0x3b3/0xbe0 kernel/printk/printk.c:2307
 vprintk_emit+0x139/0x6b0 kernel/printk/printk.c:2455
 dev_vprintk_emit+0x391/0x3e0 drivers/base/core.c:5000
 dev_printk_emit+0xd2/0x10d drivers/base/core.c:5011
 __dynamic_dev_dbg+0x252/0x310 lib/dynamic_debug.c:904
 dtv_property_process_get.isra.0+0xf40/0x3690 drivers/media/dvb-core/dvb_frontend.c:1595
 dvb_frontend_handle_compat_ioctl+0x59e/0x710 drivers/media/dvb-core/dvb_frontend.c:2218
 dvb_frontend_compat_ioctl+0xf6/0x180 drivers/media/dvb-core/dvb_frontend.c:2249
 __do_compat_sys_ioctl fs/ioctl.c:695 [inline]
 __se_compat_sys_ioctl fs/ioctl.c:638 [inline]
 __ia32_compat_sys_ioctl+0x2cf/0x360 fs/ioctl.c:638
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7f36fec
Code: Unable to access opcode bytes at 0xf7f36fc2.
RSP: 002b:00000000f53d550c EFLAGS: 00000292 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 0000000080086f53
RDX: 0000000080000080 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	74 08                	je     0xa
   2:	48 89 df             	mov    %rbx,%rdi
   5:	e8 22 64 b0 f6       	call   0xf6b0642c
   a:	44 89 74 24 4c       	mov    %r14d,0x4c(%rsp)
   f:	44 0f b6 2b          	movzbl (%rbx),%r13d
  13:	49 89 de             	mov    %rbx,%r14
  16:	e9 f6 f3 ff ff       	jmp    0xfffff411
  1b:	e8 ec f4 3d f6       	call   0xf63df50c
  20:	48 8d 3d 05 71 8a 05 	lea    0x58a7105(%rip),%rdi        # 0x58a712c
  27:	44 89 ee             	mov    %r13d,%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  36:	fc ff df
  39:	48 89 da             	mov    %rbx,%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx