pci (null): Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
pci (null): pci_fixup_video+0x0/0x280 arch/x86/pci/fixup.c:312 took 10261 usecs
------------[ cut here ]------------
ret < 0
WARNING: drivers/pci/probe.c:2768 at pci_device_add+0x133b/0x1810 drivers/pci/probe.c:2768, CPU#0: syz.4.1173/10940
Modules linked in:
CPU: 0 UID: 0 PID: 10940 Comm: syz.4.1173 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:pci_device_add+0x133b/0x1810 drivers/pci/probe.c:2768
Code: e5 04 83 e0 8f 09 e8 88 83 c8 00 00 00 e9 28 f4 ff ff e8 38 3a b0 fc 90 0f 0b 90 90 0f 0b 90 e9 0e f7 ff ff e8 26 3a b0 fc 90 <0f> 0b 90 e9 7e fa ff ff e8 18 3a b0 fc 90 0f 0b 90 e9 11 fa ff ff
RSP: 0018:ffffc90002d7f910 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000ffffffea RCX: ffffffff85596e59
RDX: ffff888026382540 RSI: ffffffff855973da RDI: ffff888026382540
RBP: ffff88801c2e5000 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffea R11: 0000000000000000 R12: ffff888021546028
R13: ffff888021546000 R14: 0000000000000001 R15: ffff88801e2c0000
FS:  0000000000000000(0000) GS:ffff888096bdf000(0063) knlGS:00000000f5454b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000745e3000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pci_scan_single_device drivers/pci/probe.c:2792 [inline]
 pci_scan_single_device+0x1d0/0x240 drivers/pci/probe.c:2778
 pci_scan_slot+0x1c9/0x7c0 drivers/pci/probe.c:2875
 pci_scan_child_bus_extend+0x6b/0x7b0 drivers/pci/probe.c:3094
 pci_scan_child_bus drivers/pci/probe.c:3207 [inline]
 pci_rescan_bus+0x18/0x40 drivers/pci/probe.c:3498
 rescan_store+0xfb/0x130 drivers/pci/pci-sysfs.c:473
 bus_attr_store+0x74/0xb0 drivers/base/bus.c:172
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xe7/0x970 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fd3fec
Code: Unable to access opcode bytes at 0xf7fd3fc2.
RSP: 002b:00000000f545450c EFLAGS: 00000292 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00000000800001c0
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>