WARNING: CPU: 0 PID: 13533 at drivers/staging/android/ion/ion.c:117 ion_buffer_destroy+0xe3/0x1a0 drivers/staging/android/ion/ion.c:117
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 13533 Comm: syz-executor0 Not tainted 4.17.0+ #92
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+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:ion_buffer_destroy+0xe3/0x1a0 drivers/staging/android/ion/ion.c:117
Code: 85 b9 00 00 00 49 8b 44 24 08 48 89 df e8 15 c4 00 02 48 89 df e8 0d 5a f7 fb 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 5d 91 ba fb <0f> 0b 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 18 48 89 fa 48 c1 
RSP: 0018:ffff880187f7f8a8 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff8801cfa69c80 RCX: ffffc90001eb4000
RDX: 00000000000002b4 RSI: ffffffff85bfac03 RDI: 0000000000000005
RBP: ffff880187f7f8d0 R08: ffff8801d28ea140 R09: ffffed0039cbc82e
R10: ffffed0039cbc82e R11: ffff8801ce5e4173 R12: ffffffff89724920
R13: ffff8801ce5e40c0 R14: 0000000000000002 R15: ffff8801cfa69ca0
 _ion_heap_freelist_drain+0x431/0x6a0 drivers/staging/android/ion/ion_heap.c:198
 ion_heap_freelist_drain+0x1f/0x30 drivers/staging/android/ion/ion_heap.c:208
 ion_buffer_create drivers/staging/android/ion/ion.c:84 [inline]
 ion_alloc+0x34e/0xa30 drivers/staging/android/ion/ion.c:405
 ion_ioctl+0x203/0x404 drivers/staging/android/ion/ion-ioctl.c:76
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x1cf/0x16f0 fs/ioctl.c:684
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701
 __do_sys_ioctl fs/ioctl.c:708 [inline]
 __se_sys_ioctl fs/ioctl.c:706 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4559f9
Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007f22c6230c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f22c62316d4 RCX: 00000000004559f9
RDX: 0000000020000080 RSI: 00000000c0184900 RDI: 0000000000000015
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004bd4e8 R14: 00000000004cb2d0 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..