WARNING: CPU: 0 PID: 5552 at mm/slab_common.c:1027 kmalloc_slab+0x6e/0x80 mm/slab_common.c:1027
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 5552 Comm: syz-executor302 Not tainted 4.19.0-rc4-next-20180921+ #77
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+0x1d3/0x2c4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x254/0x2d0 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:969
RIP: 0010:kmalloc_slab+0x6e/0x80 mm/slab_common.c:1027
Code: e9 04 f7 d0 83 e6 01 21 c8 83 e0 01 8d 04 70 48 6b c0 17 48 01 d0 48 8b 04 c5 60 da 37 89 5d c3 31 c0 81 e6 00 02 00 00 75 f4 <0f> 0b 5d c3 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 c7 c7
RSP: 0018:ffff8801d8f7f978 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000fffffffd RCX: ffffffff853521f7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000003fffffff60
RBP: ffff8801d8f7f978 R08: ffff8801bc35e240 R09: ffffed003998e121
R10: ffff8801d8f7fa48 R11: ffff8801ccc7090f R12: 0000000000000000
R13: 0000000000000000 R14: ffff8801d93fc500 R15: 00000000006080c0
 __do_kmalloc mm/slab.c:3713 [inline]
 __kmalloc+0x25/0x760 mm/slab.c:3727
 kmalloc include/linux/slab.h:551 [inline]
 kzalloc include/linux/slab.h:741 [inline]
 input_mt_init_slots+0xe5/0x4a0 drivers/input/input-mt.c:52
 uinput_create_device drivers/input/misc/uinput.c:335 [inline]
 uinput_ioctl_handler.isra.10+0x2049/0x2540 drivers/input/misc/uinput.c:876
 uinput_ioctl+0x4c/0x60 drivers/input/misc/uinput.c:1047
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl fs/ioctl.c:707 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441859
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:00007fffdfd762c8 EFLAGS: 00000286 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441859
RDX: 0000000000441859 RSI: 0000000000005501 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fffdfd76448 R09: 00007fffdfd76448
R10: 00007fffdfd76448 R11: 0000000000000286 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00000000307a7973
Kernel Offset: disabled
Rebooting in 86400 seconds..