syzbot

kernel BUG at mm/slab.c:3256!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 2949 Comm: syzkaller050748 Not tainted 4.13.0-rc7+ #36
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d2cb4380 task.stack: ffff8801d2548000
RIP: 0010:____cache_alloc_node+0x1d4/0x1e0 mm/slab.c:3292
RSP: 0018:ffff8801d254f538 EFLAGS: 00010092
RAX: fffffffffffffe00 RBX: 00000000014012c0 RCX: 0000000000000000
RDX: 00000000fffffe00 RSI: 00000000014012c0 RDI: ffff8801dac004c0
RBP: ffff8801d254f5c0 R08: 0000000000400000 R09: 00000000014092c0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801dac004c0
R13: ffff8801dac004c0 R14: 0000000000000000 R15: 00000000fffffe00
FS:  00000000009be880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020ff2fe4 CR3: 00000001d3afa000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kmalloc_node include/linux/slab.h:531 [inline]
 alloc_vmap_area+0x11c/0x8c0 mm/vmalloc.c:421
 __get_vm_area_node+0xe8/0x340 mm/vmalloc.c:1411
 __vmalloc_node_range+0xa3/0x730 mm/vmalloc.c:1762
 __vmalloc_node mm/vmalloc.c:1812 [inline]
 __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1834
 bpf_map_area_alloc+0x62/0x80 kernel/bpf/syscall.c:123
 sock_map_alloc+0x4d2/0x610 kernel/bpf/sockmap.c:523
 find_and_alloc_map kernel/bpf/syscall.c:100 [inline]
 map_create kernel/bpf/syscall.c:330 [inline]
 SYSC_bpf kernel/bpf/syscall.c:1462 [inline]
 SyS_bpf+0xc56/0x4c40 kernel/bpf/syscall.c:1443
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x43fcd9
RSP: 002b:00007fff87df72a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9
RDX: 000000000000001c RSI: 0000000020ff2fe4 RDI: 0000000000000000
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000217 R12: 0000000000401640
R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000
Code: 83 c2 01 89 50 18 4c 03 70 08 e8 38 f4 ff ff 4d 85 f6 0f 85 3e ff ff ff 44 89 fe 4c 89 ef e8 94 fb ff ff 49 89 c6 e9 2b ff ff ff <0f> 0b 0f 0b 0f 0b 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 
RIP: ____cache_alloc_node+0x1d4/0x1e0 mm/slab.c:3292 RSP: ffff8801d254f538
---[ end trace 18ac8f0584eb2092 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..