------------[ cut here ]------------
WARNING: CPU: 3 PID: 8634 at fs/overlayfs/file.c:55 ovl_change_flags fs/overlayfs/file.c:55 [inline]
WARNING: CPU: 3 PID: 8634 at fs/overlayfs/file.c:55 ovl_real_fdget_meta+0x4a3/0x540 fs/overlayfs/file.c:106
Kernel panic - not syncing: panic_on_warn set ...
CPU: 3 PID: 8634 Comm: syz-executor.2 Not tainted 5.5.0-rc6-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x3e kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:ovl_change_flags fs/overlayfs/file.c:55 [inline]
RIP: 0010:ovl_real_fdget_meta+0x4a3/0x540 fs/overlayfs/file.c:106
Code: ff 4c 89 f7 e8 3e e8 2d ff e9 fb fc ff ff e8 34 e8 2d ff e9 c7 fc ff ff 4c 89 f7 e8 c7 e8 2d ff e9 5e fd ff ff e8 cd 28 f0 fe <0f> 0b 41 bc fb ff ff ff e9 f9 fc ff ff e8 2b e8 2d ff e9 85 fb ff
RSP: 0018:ffffc90003797b38 EFLAGS: 00010212
RAX: 0000000000040000 RBX: 0000000004149002 RCX: ffffc9000f21d000
RDX: 0000000000006109 RSI: ffffffff8284ccb3 RDI: 0000000000000005
RBP: ffffc90003797b68 R08: ffff88805c9ac340 R09: ffffed100521a4c9
R10: ffffed100521a4c8 R11: ffff8880290d2647 R12: 000000000014b002
R13: ffff88802012f5c0 R14: ffff88802012f638 R15: ffff88801c3a98c8
 ovl_real_fdget fs/overlayfs/file.c:113 [inline]
 ovl_real_ioctl+0x84/0x190 fs/overlayfs/file.c:396
 ovl_ioctl_set_flags+0x198/0x320 fs/overlayfs/file.c:436
 ovl_ioctl_set_fsflags fs/overlayfs/file.c:472 [inline]
 ovl_ioctl+0x191/0x330 fs/overlayfs/file.c:516
 vfs_ioctl fs/ioctl.c:47 [inline]
 file_ioctl fs/ioctl.c:545 [inline]
 do_vfs_ioctl+0x977/0x14e0 fs/ioctl.c:732
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:749
 __do_sys_ioctl fs/ioctl.c:756 [inline]
 __se_sys_ioctl fs/ioctl.c:754 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:754
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b089
Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2ef3bc8c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000072bf00 RCX: 000000000045b089
RDX: 0000000020000300 RSI: 0000000040086602 RDI: 0000000000000003
RBP: 00007f2ef3bc96d4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000002d2 R14: 00000000004aa9ca R15: 00000000006e9fc0
Kernel Offset: disabled
Rebooting in 86400 seconds..