------------[ cut here ]------------
WARNING: CPU: 1 PID: 5782 at block/bdev.c:643 blkdev_flush_mapping+0xac/0x290 block/bdev.c:643
Modules linked in:
CPU: 1 PID: 5782 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:blkdev_flush_mapping+0xac/0x290 block/bdev.c:643
Code: 42 80 3c 28 00 74 08 4c 89 f7 e8 8f 32 cc fd 49 8b 3e 48 ba ff ff ff ff ff ff ff 7f 31 f6 e8 5b bf a1 fd eb 11 e8 44 af 73 fd <0f> 0b 48 85 db 75 9f e8 38 af 73 fd 48 89 1c 24 4c 8d b3 80 00 00
RSP: 0018:ffffc90004537da0 EFLAGS: 00010293
RAX: ffffffff8413c2dc RBX: ffff888148d24680 RCX: ffff88802fd20000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000002 R08: ffff888148d246bb R09: 1ffff110291a48d7
R10: dffffc0000000000 R11: ffffed10291a48d8 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888148d247b4 R15: ffff888148d246b8
FS:  00007fc456958880(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555638c24e8 CR3: 00000000608b2000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 blkdev_put_whole block/bdev.c:676 [inline]
 blkdev_put+0x49a/0x7a0 block/bdev.c:954
 blkdev_release+0x84/0x90 block/fops.c:604
 __fput+0x221/0x940 fs/file_table.c:418
 __do_sys_close fs/open.c:1574 [inline]
 __se_sys_close+0x15c/0x1e0 fs/open.c:1559
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fc4562a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffde50018d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fc456958880 RCX: 00007fc4562a7407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fc4569586e8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
R13: 000055dc4e9b1410 R14: 0000000000000008 R15: 000055dc4e9c3690
 </TASK>