------------[ cut here ]------------
WARNING: CPU: 1 PID: 13096 at fs/overlayfs/file.c:55 ovl_change_flags fs/overlayfs/file.c:55 [inline]
WARNING: CPU: 1 PID: 13096 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: 1 PID: 13096 Comm: syz-executor.1 Not tainted 5.5.0-rc7-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+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 be de 2d ff e9 fb fc ff ff e8 b4 de 2d ff e9 c7 fc ff ff 4c 89 f7 e8 47 df 2d ff e9 5e fd ff ff e8 5d 1a f0 fe <0f> 0b 41 bc fb ff ff ff e9 f9 fc ff ff e8 ab de 2d ff e9 85 fb ff
RSP: 0018:ffffc900010d7d98 EFLAGS: 00010212
RAX: 0000000000040000 RBX: 0000000004149002 RCX: ffffc90005c21000
RDX: 000000000000003f RSI: ffffffff8284dd03 RDI: 0000000000000005
RBP: ffffc900010d7dc8 R08: ffff888092248480 R09: ffff888092248d10
R10: fffffbfff14f66d0 R11: ffffffff8a7b3687 R12: 000000000014b002
R13: ffff888094e00000 R14: ffff888094e00078 R15: ffff8880915954c8
 ovl_fsync+0x97/0x250 fs/overlayfs/file.c:300
 vfs_fsync_range+0x141/0x230 fs/sync.c:197
 vfs_fsync fs/sync.c:211 [inline]
 do_fsync+0x54/0xa0 fs/sync.c:221
 __do_sys_fsync fs/sync.c:229 [inline]
 __se_sys_fsync fs/sync.c:227 [inline]
 __x64_sys_fsync+0x33/0x40 fs/sync.c:227
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b349
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe9bd3bec78 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007fe9bd3bf6d4 RCX: 000000000045b349
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000000e2 R14: 00000000004c21a1 R15: 000000000075bf2c
Kernel Offset: disabled
Rebooting in 86400 seconds..