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**   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
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**                                                      **
WARNING: CPU: 0 PID: 10042 at fs/overlayfs/file.c:60 ovl_change_flags fs/overlayfs/file.c:60 [inline]
WARNING: CPU: 0 PID: 10042 at fs/overlayfs/file.c:60 ovl_real_fdget_meta.cold+0x11/0x1e fs/overlayfs/file.c:111
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 10042 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
** trace_printk() being used. Allocating extra memory.  **
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
**                                                      **
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:ovl_change_flags fs/overlayfs/file.c:60 [inline]
RIP: 0010:ovl_real_fdget_meta.cold+0x11/0x1e fs/overlayfs/file.c:111
Code: e8 42 ff 69 f9 44 89 f6 48 c7 c7 a0 97 99 88 e8 9e 30 fb ff e9 72 e5 71 fa e8 29 ff 69 f9 48 c7 c7 80 9e 99 88 e8 88 30 fb ff <0f> 0b 41 bd fb ff ff ff e9 4a f3 71 fa e8 0b ff 69 f9 48 c7 c7 80
RSP: 0018:ffff88804bab7e10 EFLAGS: 00010286
** This means that this is a DEBUG kernel and it is     **
RAX: 0000000000000024 RBX: 0000000000002000 RCX: 0000000000000000
RDX: 000000000000aa4f RSI: ffffffff814dff01 RDI: ffffed1009756fb4
RBP: 0000000004048000 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880aa1a4340
R13: ffff88804e74d3f0 R14: 000000000000a000 R15: ffff8880aa1a43b8
 ovl_real_fdget fs/overlayfs/file.c:118 [inline]
 ovl_llseek+0xe5/0x340 fs/overlayfs/file.c:168
** unsafe for production use.                           **
 vfs_llseek fs/read_write.c:300 [inline]
 ksys_lseek+0x14f/0x1b0 fs/read_write.c:313
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f98c310f209
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f98c1a84168 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f98c3221f60 RCX: 00007f98c310f209
RDX: 0000000000000000 RSI: 00000000000007ff RDI: 0000000000000004
RBP: 00007f98c3169161 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf787572f R14: 00007f98c1a84300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..