------------[ cut here ]------------
WARNING: CPU: 1 PID: 9420 at fs/overlayfs/file.c:55 ovl_change_flags fs/overlayfs/file.c:55 [inline]
WARNING: CPU: 1 PID: 9420 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: 9420 Comm: syz-executor247 Not tainted 5.5.0-rc2-next-20191220-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 8e 7d 2d ff e9 fb fc ff ff e8 84 7d 2d ff e9 c7 fc ff ff 4c 89 f7 e8 17 7e 2d ff e9 5e fd ff ff e8 ed 92 ef fe <0f> 0b 41 bc fb ff ff ff e9 f9 fc ff ff e8 7b 7d 2d ff e9 85 fb ff
RSP: 0018:ffffc900028273e8 EFLAGS: 00010293
RAX: ffff8880939c2040 RBX: 0000000004048000 RCX: ffffffff8285c076
RDX: 0000000000000000 RSI: ffffffff8285c2a3 RDI: 0000000000000005
RBP: ffffc90002827418 R08: ffff8880939c2040 R09: 0000000000000000
R10: ffffed1043789756 R11: ffff88821bc4bab3 R12: 000000000000a000
R13: ffff888098c80280 R14: ffff888098c802f8 R15: ffff888090292608
 ovl_real_fdget fs/overlayfs/file.c:113 [inline]
 ovl_read_iter+0x11a/0x370 fs/overlayfs/file.c:238
 call_read_iter include/linux/fs.h:1895 [inline]
 do_iter_readv_writev+0x711/0x8f0 fs/read_write.c:691
 do_iter_read+0x27c/0x660 fs/read_write.c:933
 vfs_readv+0xf0/0x160 fs/read_write.c:997
 kernel_readv fs/splice.c:365 [inline]
 default_file_splice_read+0x4fb/0xa20 fs/splice.c:422
 do_splice_to+0x127/0x180 fs/splice.c:892
 splice_direct_to_actor+0x320/0xa30 fs/splice.c:971
 do_splice_direct+0x1da/0x2a0 fs/splice.c:1080
 do_sendfile+0x597/0xd00 fs/read_write.c:1464
 __do_sys_sendfile64 fs/read_write.c:1525 [inline]
 __se_sys_sendfile64 fs/read_write.c:1511 [inline]
 __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1511
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4402f9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffec66aece8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 0000800000000024 R11: 0000000000000246 R12: 0000000000401b80
R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..