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WARNING: CPU: 0 PID: 23669 at fs/overlayfs/file.c:55 ovl_change_flags fs/overlayfs/file.c:55 [inline]
WARNING: CPU: 0 PID: 23669 at fs/overlayfs/file.c:55 ovl_real_fdget_meta+0x570/0x610 fs/overlayfs/file.c:106
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 23669 Comm: syz-executor.5 Not tainted 5.5.0-rc6-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+0x1fb/0x318 lib/dump_stack.c:118
 panic+0x264/0x7a9 kernel/panic.c:221
 __warn+0x209/0x210 kernel/panic.c:582
 report_bug+0x1b6/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0xda/0x440 arch/x86/kernel/traps.c:267
 do_invalid_op+0x36/0x40 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+0x570/0x610 fs/overlayfs/file.c:106
Code: 89 da e9 18 fc ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 29 fc ff ff 4c 89 ef e8 ba 91 2a ff e9 1c fc ff ff e8 c0 4e ee fe <0f> 0b 41 bc fb ff ff ff e9 3a fc ff ff 48 8b 4d c8 80 e1 07 80 c1
RSP: 0018:ffffc90001b97e00 EFLAGS: 00010287
RAX: ffffffff82882f00 RBX: 000000000014b002 RCX: 0000000000040000
RDX: ffffc900159b7000 RSI: 000000000000002a RDI: 000000000000002b
RBP: ffffc90001b97e60 R08: ffffffff82882c8b R09: fffffbfff12891d5
R10: fffffbfff12891d5 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88809dd060b8 R14: 0000000004002000 R15: 0000000000002000
 ovl_fsync+0x4e/0x1c0 fs/overlayfs/file.c:300
 vfs_fsync_range fs/sync.c:197 [inline]
 vfs_fsync fs/sync.c:211 [inline]
 do_fsync fs/sync.c:221 [inline]
 __do_sys_fsync fs/sync.c:229 [inline]
 __se_sys_fsync fs/sync.c:227 [inline]
 __x64_sys_fsync+0x1c3/0x200 fs/sync.c:227
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45aff9
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:00007f4f0effcc78 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007f4f0effd6d4 RCX: 000000000045aff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000000e2 R14: 00000000004c1d84 R15: 000000000075bf2c
Kernel Offset: disabled
Rebooting in 86400 seconds..