syzbot

RDX: 0000000000000012 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007f0e998c61d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffc8fd19b6f R14: 00007f0e998c6300 R15: 0000000000022000
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1313 at block/genhd.c:719 __device_add_disk.cold+0x69/0x188 block/genhd.c:719
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 1313 Comm: syz-executor.4 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:__device_add_disk.cold+0x69/0x188 block/genhd.c:719
Code: 02 84 c0 74 08 3c 03 0f 8e a8 00 00 00 44 8b a5 b8 05 00 00 e9 75 29 6b fb e8 13 bb 66 f9 48 c7 c7 20 72 b2 88 e8 1d 76 f7 ff <0f> 0b e9 9d 35 6b fb e8 fb ba 66 f9 48 c7 c7 20 72 b2 88 e8 05 76
RSP: 0018:ffff888046fcf6b8 EFLAGS: 00010282
RAX: 0000000000000024 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff814dfcf1 RDI: ffffed1008df9ec9
RBP: ffff8880479911c0 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888047991250
R13: ffff888047991818 R14: 00000000fffffff4 R15: ffff8880479911c4
 add_disk include/linux/genhd.h:409 [inline]
 md_alloc+0x981/0x1090 drivers/md/md.c:5408
 md_probe+0x35/0x40 drivers/md/md.c:5436
 kobj_lookup+0x268/0x460 drivers/base/map.c:124
 get_gendisk+0x48/0x380 block/genhd.c:856
 bdev_get_gendisk fs/block_dev.c:1080 [inline]
 __blkdev_get+0x461/0x1480 fs/block_dev.c:1473
 blkdev_get+0xb0/0x940 fs/block_dev.c:1627
 blkdev_get_by_dev+0x3b/0x70 fs/block_dev.c:1752
 swsusp_check+0x4d/0x280 kernel/power/swap.c:1516
 software_resume+0x1c6/0x390 kernel/power/hibernate.c:870
 resume_store+0xf9/0x130 kernel/power/hibernate.c:1072
 kobj_attr_store+0x50/0x80 lib/kobject.c:811
 sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:140
 kernfs_fop_write+0x2b0/0x470 fs/kernfs/file.c:316
 __vfs_write+0xf7/0x770 fs/read_write.c:485
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_write+0x12b/0x2a0 fs/read_write.c:599
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0e998c6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000012 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007f0e998c61d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffc8fd19b6f R14: 00007f0e998c6300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..