FAT-fs (loop0): error, fat_get_cluster: invalid cluster chain (i_pos 0)
FAT-fs (loop2): error, fat_get_cluster: invalid cluster chain (i_pos 0)
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
------------[ cut here ]------------
FAT-fs (loop0): error, fat_get_cluster: invalid cluster chain (i_pos 0)
WARNING: CPU: 0 PID: 17388 at fs/inode.c:286 drop_nlink.cold+0x11/0x41 fs/inode.c:286
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 17388 Comm: syz-executor128 Not tainted 4.19.211-syzkaller #0
FAT-fs (loop1): Filesystem has been set read-only
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
 __warn.cold+0x20/0x5a kernel/panic.c:541
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
 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
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:drop_nlink.cold+0x11/0x41 fs/inode.c:286
Code: f9 e8 9c bd 6d f9 48 c7 c7 80 a8 74 88 e8 fb ee fe ff 0f 0b e9 9f 50 b4 f9 e8 84 bd 6d f9 48 c7 c7 80 b0 74 88 e8 e3 ee fe ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
RSP: 0018:ffff88809e8efce8 EFLAGS: 00010282
RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1013d1df8f
RBP: ffff888087994b90 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888087994bd8
R13: ffff88808a365e20 R14: ffff88809e8efd68 R15: ffff888096e5ebc0
FAT-fs (loop1): error, fat_get_cluster: invalid cluster chain (i_pos 0)
 vfat_rmdir+0x2f6/0x4f0 fs/fat/namei_vfat.c:810
 vfs_rmdir.part.0+0x10f/0x3d0 fs/namei.c:3882
 vfs_rmdir fs/namei.c:3868 [inline]
 do_rmdir+0x3fd/0x490 fs/namei.c:3943
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f2f18060f89
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2f18003208 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 000000000000001b RCX: 00007f2f18060f89
RDX: 00007f2f18060f89 RSI: 00007f2f18060f89 RDI: 00000000200000c0
RBP: 00007f2f180e5240 R08: 00007f2f180e5248 R09: 00007f2f180e5248
R10: 00007f2f180e5248 R11: 0000000000000246 R12: 00007f2f180e524c
R13: 00007fffc08f63bf R14: 00007f2f18003300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..