syzbot

loop0: detected capacity change from 0 to 4
erofs: (device loop0): mounted with root inode @ nid 36.
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WARNING: CPU: 1 PID: 3607 at fs/iomap/iter.c:35 iomap_iter+0x7f2/0x8a0 fs/iomap/iter.c:78
Modules linked in:
CPU: 1 PID: 3607 Comm: syz-executor219 Not tainted 6.0.0-rc6-syzkaller-00321-g105a36f3694e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:iomap_iter_done fs/iomap/iter.c:35 [inline]
RIP: 0010:iomap_iter+0x7f2/0x8a0 fs/iomap/iter.c:78
Code: c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 66 d9 7f ff 0f 0b e9 9e fe ff ff e8 5a d9 7f ff 0f 0b e9 d0 fe ff ff e8 4e d9 7f ff <0f> 0b e9 34 ff ff ff e8 42 d9 7f ff 0f 0b 41 bd fb ff ff ff eb bb
RSP: 0018:ffffc900037cf828 EFLAGS: 00010293
RAX: ffffffff8207b0b2 RBX: 0000000000000004 RCX: ffff88807dd18000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 0000000000000004 R08: ffffffff8207afda R09: fffffbfff1c164fe
R10: fffffbfff1c164fe R11: 1ffffffff1c164fd R12: ffffc900037cf968
R13: 1ffff920006f9f32 R14: 1ffff920006f9f2c R15: dffffc0000000000
FS:  00005555564f6300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdced66000 CR3: 000000007151a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 iomap_fiemap+0x1b9/0x9a0 fs/iomap/fiemap.c:80
 ioctl_fiemap fs/ioctl.c:219 [inline]
 do_vfs_ioctl+0x187f/0x29a0 fs/ioctl.c:810
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl+0x83/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7f771a1de9
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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdced653c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f771a1de9
RDX: 00000000200002c0 RSI: 00000000c020660b RDI: 0000000000000005
RBP: 00007f7f771615e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffdced65280 R11: 0000000000000246 R12: 00007f7f77161670
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>