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WARNING: CPU: 1 PID: 12898 at fs/overlayfs/file.c:66 ovl_change_flags fs/overlayfs/file.c:66 [inline]
WARNING: CPU: 1 PID: 12898 at fs/overlayfs/file.c:66 ovl_real_fdget_meta+0x597/0x640 fs/overlayfs/file.c:117
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 12898 Comm: syz-executor.4 Not tainted 5.6.0-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+0x1e9/0x30e lib/dump_stack.c:118
 panic+0x264/0x7a0 kernel/panic.c:221
 __warn+0x209/0x210 kernel/panic.c:582
 report_bug+0x1ac/0x2d0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:175 [inline]
 do_error_trap+0xca/0x1c0 arch/x86/kernel/traps.c:267
 do_invalid_op+0x32/0x40 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:66 [inline]
RIP: 0010:ovl_real_fdget_meta+0x597/0x640 fs/overlayfs/file.c:117
Code: ff df e9 f2 fb ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 03 fc ff ff 4c 89 e7 e8 03 f0 2a ff e9 f6 fb ff ff e8 59 29 ed fe <0f> 0b 41 bd fb ff ff ff e9 11 fc ff ff 48 8b 4c 24 10 80 e1 07 80
RSP: 0018:ffffc90004a47e30 EFLAGS: 00010287
RAX: ffffffff8288d777 RBX: 0000000004042000 RCX: 0000000000040000
RDX: ffffc90011cc8000 RSI: 000000000000002a RDI: 000000000000002b
RBP: 000000000000a001 R08: ffffffff8288d4db R09: ffffed100aad8e04
R10: ffffed100aad8e04 R11: 0000000000000000 R12: ffff8880415f0b40
R13: 0000000000000000 R14: 0000000000002000 R15: 1ffff110082be168
 ovl_fsync+0x4f/0x1c0 fs/overlayfs/file.c:422
 vfs_fsync_range fs/sync.c:197 [inline]
 vfs_fsync fs/sync.c:211 [inline]
 do_fsync fs/sync.c:221 [inline]
 __do_sys_fdatasync fs/sync.c:234 [inline]
 __se_sys_fdatasync fs/sync.c:232 [inline]
 __x64_sys_fdatasync+0xb1/0x100 fs/sync.c:232
 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c879
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:00007fc33cea6c78 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
RAX: ffffffffffffffda RBX: 00007fc33cea76d4 RCX: 000000000045c879
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000000c6 R14: 00000000004c354f R15: 000000000076bf0c
Kernel Offset: disabled
Rebooting in 86400 seconds..