netlink: 4 bytes leftover after parsing attributes in process `syz-executor7'. input: syz1 as /devices/virtual/input/input56 input: syz1 as /devices/virtual/input/input57 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 15139 at mm/page_alloc.c:3556 __alloc_pages_slowpath+0x138a/0x1e50 mm/page_alloc.c:3556 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 15139 Comm: syz-executor0 Not tainted 4.9.124-g09eb2ba #83 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff88018de97628 ffffffff81eb95e9 ffffffff83c48ac0 00000000ffffffff 0000000000000000 0000000000000001 0000000000000de4 ffff88018de976e8 ffffffff81423eb5 0000000041b58ab3 ffffffff843bb8e8 ffffffff81423cf6 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x3bc kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] __alloc_pages_slowpath+0x138a/0x1e50 mm/page_alloc.c:3556 [] __alloc_pages_nodemask+0x354/0x700 mm/page_alloc.c:3862 [] __alloc_pages include/linux/gfp.h:433 [inline] [] __alloc_pages_node include/linux/gfp.h:446 [inline] [] alloc_pages_node include/linux/gfp.h:460 [inline] [] kmalloc_order+0x2a/0x70 mm/slab_common.c:1043 [] kmalloc_order_trace+0x1f/0x190 mm/slab_common.c:1054 [] kmalloc_large include/linux/slab.h:422 [inline] [] __kmalloc+0x194/0x300 mm/slub.c:3730 [] kmalloc include/linux/slab.h:495 [inline] [] vga_arb_write+0xd8/0xcc0 drivers/gpu/vga/vgaarb.c:1032 [] __vfs_write+0x115/0x580 fs/read_write.c:507 [] vfs_write+0x187/0x530 fs/read_write.c:557 [] SYSC_write fs/read_write.c:604 [inline] [] SyS_write+0xd9/0x1c0 fs/read_write.c:596 [] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..