WARNING: CPU: 0 PID: 31311 at mm/slab_common.c:1031 kmalloc_slab+0x56/0x70 mm/slab_common.c:1031
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 31311 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #260
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+0x1c4/0x2b4 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:993
RIP: 0010:kmalloc_slab+0x56/0x70 mm/slab_common.c:1031
Code: c5 60 ab 00 89 5d c3 48 85 ff b8 10 00 00 00 74 f4 83 ef 01 c1 ef 03 0f b6 87 80 aa 00 89 eb d8 31 c0 81 e6 00 02 00 00 75 db <0f> 0b 5d c3 48 8b 04 c5 a0 aa 00 89 5d c3 66 90 66 2e 0f 1f 84 00
RSP: 0018:ffff880187f5f978 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000080000001 RCX: ffffc90009ec2000
RDX: 0000000000000052 RSI: 0000000000000000 RDI: 0000002000000060
RBP: ffff880187f5f978 R08: ffff8801c3a3a040 R09: ffffed003a3f8a41
R10: ffff880187f5fa48 R11: ffff8801d1fc520f R12: 0000000000000000
R13: 0000000000000000 R14: ffff8801d7e0d280 R15: 00000000006080c0
 __do_kmalloc mm/slab.c:3713 [inline]
 __kmalloc+0x25/0x760 mm/slab.c:3727
 kmalloc include/linux/slab.h:518 [inline]
 kzalloc include/linux/slab.h:707 [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: 0033:0x457579
Code: 1d b4 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f02ea6f2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000457579
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f02ea6f36d4
R13: 00000000004c1284 R14: 00000000004d1e78 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..