------------[ cut here ]------------
WARNING: CPU: 1 PID: 13578 at fs/overlayfs/file.c:60 ovl_change_flags fs/overlayfs/file.c:60 [inline]
WARNING: CPU: 1 PID: 13578 at fs/overlayfs/file.c:60 ovl_real_fdget_meta.cold+0x11/0x1e fs/overlayfs/file.c:111
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 13578 Comm: syz-executor.2 Not tainted 4.19.190-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:186
 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:ovl_change_flags fs/overlayfs/file.c:60 [inline]
RIP: 0010:ovl_real_fdget_meta.cold+0x11/0x1e fs/overlayfs/file.c:111
Code: e8 8e 27 6b f9 44 89 f6 48 c7 c7 20 8f 99 88 e8 a4 2f fb ff e9 ae f7 72 fa e8 75 27 6b f9 48 c7 c7 00 96 99 88 e8 8e 2f fb ff <0f> 0b 41 bd fb ff ff ff e9 86 05 73 fa e8 57 27 6b f9 48 c7 c7 00
RSP: 0018:ffff88804134fb50 EFLAGS: 00010286
RAX: 0000000000000024 RBX: 0000000000002000 RCX: 0000000000000000
RDX: 0000000000009492 RSI: ffffffff814dde61 RDI: ffffed1008269f5c
RBP: 0000000004048000 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b313b780
R13: ffff8880402078b0 R14: 000000000000a000 R15: ffff8880b313b7f8
 ovl_real_fdget fs/overlayfs/file.c:118 [inline]
 ovl_copyfile+0xb7/0x5b0 fs/overlayfs/file.c:569
 ovl_dedupe_file_range+0x93/0xc0 fs/overlayfs/file.c:633
 vfs_dedupe_file_range_one.part.0+0x1a9/0x280 fs/read_write.c:2082
 vfs_dedupe_file_range_one fs/read_write.c:2150 [inline]
 vfs_dedupe_file_range+0x488/0x700 fs/read_write.c:2150
 ioctl_file_dedupe_range fs/ioctl.c:606 [inline]
 do_vfs_ioctl+0x86f/0x12e0 fs/ioctl.c:684
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665d9
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:00007fab9ca92188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665d9
RDX: 00000000200003c0 RSI: 00000000c0189436 RDI: 0000000000000006
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007fff875183ff R14: 00007fab9ca92300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..