------------[ cut here ]------------
WARNING: CPU: 0 PID: 222 at block/blk-map.c:488 blk_rq_append_bio+0x46e/0x600 block/blk-map.c:506
Modules linked in:
CPU: 0 PID: 222 Comm: kworker/u4:5 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound async_run_entry_fn
RIP: 0010:blk_rq_append_bio+0x46e/0x600 block/blk-map.c:488
Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 38 01 00 00 49 89 9e a0 00 00 00 31 c0 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b 48 83 c4 20 b8 ea ff ff ff 5b 5d 41 5c 41 5d 41 5e 41 5f c3
RSP: 0018:ffffc900018ff730 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff888019e0ef00 RCX: 0000000000000008
RDX: 1ffff110033c1e73 RSI: ffff88803cfd5400 RDI: ffff888019e0f398
RBP: ffff888019e0ef00 R08: 0000000000000000 R09: ffff88803cfd5470
R10: fffffbfff186b941 R11: 0000000000000001 R12: ffff88803cfd5400
R13: 0000000000000008 R14: ffff88803e2e4000 R15: ffff888143cdb400
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000030ea708 CR3: 0000000010786000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 blk_rq_map_kern+0x434/0x570 block/blk-map.c:653
 __scsi_execute+0x442/0x560 drivers/scsi/scsi_lib.c:224
 scsi_execute_req include/scsi/scsi_device.h:461 [inline]
 read_capacity_10+0x143/0x5a0 drivers/scsi/sd.c:2442
 sd_read_capacity drivers/scsi/sd.c:2519 [inline]
 sd_revalidate_disk.isra.0+0x177a/0x6940 drivers/scsi/sd.c:3203
 sd_probe+0x8b2/0xf10 drivers/scsi/sd.c:3459
 really_probe+0x1fd/0xc60 drivers/base/dd.c:554
 driver_probe_device+0x1ed/0x380 drivers/base/dd.c:740
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431
 __device_attach_async_helper+0x191/0x240 drivers/base/dd.c:872
 async_run_entry_fn+0xbb/0x640 kernel/async.c:123
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294