------------[ cut here ]------------
WARNING: CPU: 0 PID: 7091 at fs/overlayfs/file.c:60 ovl_change_flags fs/overlayfs/file.c:60 [inline]
WARNING: CPU: 0 PID: 7091 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: 0 PID: 7091 Comm: syz-executor.4 Not tainted 4.19.211-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: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
 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 42 ff 69 f9 44 89 f6 48 c7 c7 a0 97 99 88 e8 9e 30 fb ff e9 72 e5 71 fa e8 29 ff 69 f9 48 c7 c7 80 9e 99 88 e8 88 30 fb ff <0f> 0b 41 bd fb ff ff ff e9 4a f3 71 fa e8 0b ff 69 f9 48 c7 c7 80
RSP: 0018:ffff88803a367b70 EFLAGS: 00010286
RAX: 0000000000000024 RBX: 0000000000002000 RCX: 0000000000000000
RDX: 000000000000a4bb RSI: ffffffff814dff01 RDI: ffffed100746cf60
RBP: 0000000004048000 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888097770540
R13: ffff88802428d2b0 R14: 000000000000a000 R15: ffff8880977705b8
 ovl_real_fdget fs/overlayfs/file.c:118 [inline]
 ovl_real_ioctl+0x7a/0x170 fs/overlayfs/file.c:401
 ovl_ioctl_set_flags+0x18f/0x310 fs/overlayfs/file.c:441
 ovl_ioctl_set_fsflags fs/overlayfs/file.c:477 [inline]
 ovl_ioctl+0x16c/0x2f0 fs/overlayfs/file.c:521
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 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: 0033:0x7f6b39394e99
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:00007f6b37d0a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6b394a7f60 RCX: 00007f6b39394e99
RDX: 00000000200003c0 RSI: 0000000040086602 RDI: 0000000000000004
RBP: 00007f6b393ef031 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe9116505f R14: 00007f6b37d0a300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..