------------[ cut here ]------------
WARNING: CPU: 0 PID: 4769 at mm/page_alloc.c:3532 __alloc_pages_slowpath+0x116c/0x1e50 mm/page_alloc.c:3532
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4769 Comm: syzkaller982139 Not tainted 4.9.44-g6e05535 #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d1c1f5e0 ffffffff81d929c9 ffffffff83a46b40 ffff8801d1c1f6b8
 ffffffff83aa3b00 ffffffff814519ac 0000000000000009 ffff8801d1c1f6a8
 ffffffff8142e101 0000000041b58ab3 ffffffff84184158 ffffffff8142df45
Call Trace:
 [<ffffffff81d929c9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d929c9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8142e101>] panic+0x1bc/0x3a8 kernel/panic.c:179
 [<ffffffff81131e54>] __warn+0x1c4/0x1e0 kernel/panic.c:542
 [<ffffffff811320bc>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff814519ac>] __alloc_pages_slowpath+0x116c/0x1e50 mm/page_alloc.c:3532
 [<ffffffff814529cb>] __alloc_pages_nodemask+0x33b/0x6b0 mm/page_alloc.c:3839
 [<ffffffff814a5fea>] __alloc_pages include/linux/gfp.h:433 [inline]
 [<ffffffff814a5fea>] __alloc_pages_node include/linux/gfp.h:446 [inline]
 [<ffffffff814a5fea>] alloc_pages_node include/linux/gfp.h:460 [inline]
 [<ffffffff814a5fea>] kmalloc_order+0x2a/0x70 mm/slab_common.c:1038
 [<ffffffff814a604f>] kmalloc_order_trace+0x1f/0x190 mm/slab_common.c:1049
 [<ffffffff81537fdd>] kmalloc_large include/linux/slab.h:422 [inline]
 [<ffffffff81537fdd>] __kmalloc+0x19d/0x310 mm/slub.c:3730
 [<ffffffff8243956a>] kmalloc include/linux/slab.h:495 [inline]
 [<ffffffff8243956a>] vga_arb_write+0xda/0xda0 drivers/gpu/vga/vgaarb.c:1032
 [<ffffffff8156b151>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156ef20>] do_loop_readv_writev fs/read_write.c:880 [inline]
 [<ffffffff8156ef20>] do_readv_writev+0x520/0x750 fs/read_write.c:874
 [<ffffffff8156f687>] vfs_writev+0x87/0xc0 fs/read_write.c:911
 [<ffffffff8156fa25>] do_pwritev+0x115/0x1a0 fs/read_write.c:998
 [<ffffffff815727e0>] SYSC_pwritev fs/read_write.c:1045 [inline]
 [<ffffffff815727e0>] SyS_pwritev+0x30/0x40 fs/read_write.c:1040
 [<ffffffff838a6805>] entry_SYSCALL_64_fastpath+0x23/0xc6
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..