kasan: CONFIG_KASAN_INLINE enabled
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
kasan: GPF could be caused by NULL-ptr deref or user memory access
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold.4+0xa/0x11 lib/fault-inject.c:149
general protection fault: 0000 [#1] SMP KASAN
CPU: 0 PID: 16660 Comm: syz-executor6 Not tainted 4.18.0-rc4-next-20180713+ #7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:print_bad_pte+0xad/0x5f0 mm/memory.c:730
Code: 
89 
f8 
48 
c1 
e8 
03 80 
3c 
18 
00 0f 
85 
32 
02 
00 00 
48 
b8 
 __should_failslab+0x124/0x180 mm/failslab.c:32
00 00 
 should_failslab+0x9/0x14 mm/slab_common.c:1557
00 
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc_node mm/slab.c:3299 [inline]
 kmem_cache_alloc_node_trace+0x26f/0x770 mm/slab.c:3661
00 
00 
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696
fc 
 __kmalloc_reserve.isra.41+0x3a/0xe0 net/core/skbuff.c:137
ff 
 __alloc_skb+0x155/0x790 net/core/skbuff.c:205
df 
4d 
8b 
66 
40 
49 
8d 
7c 24 
50 
 alloc_skb include/linux/skbuff.h:988 [inline]
 alloc_uevent_skb+0x89/0x220 lib/kobject_uevent.c:288
48 89 
 uevent_net_broadcast_untagged lib/kobject_uevent.c:324 [inline]
 kobject_uevent_net_broadcast lib/kobject_uevent.c:406 [inline]
 kobject_uevent_env+0x866/0x1110 lib/kobject_uevent.c:587
fa 
48 
 kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:636
c1 
 device_add+0x95d/0x16f0 drivers/base/core.c:1915
ea 
03 
<80> 
3c 
 device_create_groups_vargs+0x1ff/0x270 drivers/base/core.c:2512
02 
 device_create_vargs+0x46/0x60 drivers/base/core.c:2552
00 
 bdi_register_va.part.12+0xc3/0x9c0 mm/backing-dev.c:914
0f 
85 
18 02 
00 
00 
48 
b8 
00 
00 
 bdi_register_va+0x68/0x80 mm/backing-dev.c:930
00 
 super_setup_bdi_name+0x12d/0x240 fs/super.c:1446
00 
00 
fc 
ff 
 super_setup_bdi+0x7f/0xb0 fs/super.c:1467
df 
 v9fs_fill_super fs/9p/vfs_super.c:90 [inline]
 v9fs_mount+0x268/0x900 fs/9p/vfs_super.c:146
4c 
89 
 legacy_get_tree+0x118/0x440 fs/fs_context.c:659
RSP: 0018:ffff88018f31ed88 EFLAGS: 00010202
 vfs_get_tree+0x1cb/0x5c0 fs/super.c:1743
 do_new_mount fs/namespace.c:2567 [inline]
 do_mount+0x6c1/0x1fb0 fs/namespace.c:2889
RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffc90001baf000
RDX: 090000010797f1b3 RSI: ffffffff81ab917e RDI: 480000083cbf8d99
RBP: ffff88018f31ee48 R08: ffff880198f8c180 R09: ffffed003ae0a7e0
R10: ffffed003ae0a7e0 R11: ffff8801d7053f07 R12: 480000083cbf8d49
R13: 1ffff10031e63db8 R14: ffffffff815f30e0 R15: ffffffff81abed00
FS:  00007f1dcdd34700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31a23000 CR3: 00000001cb0fc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 ksys_mount+0x12d/0x140 fs/namespace.c:3105
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 __do_sys_mount fs/namespace.c:3119 [inline]
 __se_sys_mount fs/namespace.c:3116 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3116
Call Trace:
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 _vm_normal_page+0x2c3/0x340 mm/memory.c:860
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
 copy_one_pte mm/memory.c:1039 [inline]
 copy_pte_range mm/memory.c:1103 [inline]
 copy_pmd_range mm/memory.c:1154 [inline]
 copy_pud_range mm/memory.c:1188 [inline]
 copy_p4d_range mm/memory.c:1210 [inline]
 copy_page_range+0xd15/0x24c0 mm/memory.c:1272
RIP: 0033:0x455ab9
Code: 
1d 
ba 
fb 
ff 
c3 
66 
2e 
 shrink_slab_memcg mm/vmscan.c:598 [inline]
 shrink_slab+0x861/0xa60 mm/vmscan.c:671
0f 
1f 
84 
00 
00 
00 
00 00 
66 
 shrink_node+0x429/0x16a0 mm/vmscan.c:2735
90 
48 
89 
f8 
48 
89 
f7 
 shrink_zones mm/vmscan.c:2964 [inline]
 do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
48 
89 
d6 
48 
89 
ca 
4d 
 try_to_free_mem_cgroup_pages+0x49d/0xc90 mm/vmscan.c:3324
89 
c2 4d 
89 
c8 4c 
8b 
4c 
24 
08 
0f 
05 
<48> 
3d 
01 
f0 
ff 
 memory_high_write+0x283/0x310 mm/memcontrol.c:5611
ff 0f 
83 
eb 
b9 
 cgroup_file_write+0x31f/0x840 kernel/cgroup/cgroup.c:3502
fb 
ff 
c3 
66 
 kernfs_fop_write+0x2ba/0x480 fs/kernfs/file.c:316
2e 
 __vfs_write+0x117/0x9d0 fs/read_write.c:485
0f 
1f 
84 
00 
00 
00 00 
RSP: 002b:00007fe830814c68 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe8308156d4 RCX: 0000000000455ab9
 vfs_write+0x1fc/0x560 fs/read_write.c:549
RDX: 0000000020000080 RSI: 0000000020000300 RDI: 0000000000000000
 ksys_write+0x101/0x260 fs/read_write.c:598
RBP: 000000000072bea0 R08: 0000000020000bc0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016
R13: 00000000004c0201 R14: 00000000004cfe50 R15: 000000000000005b
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455ab9
Code: 1d ba 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 b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007f1dcdd33c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1dcdd346d4 RCX: 0000000000455ab9
RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000015
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004c2cae R14: 00000000004d4cc8 R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace e75e635afdb00c9d ]---
RIP: 0010:print_bad_pte+0xad/0x5f0 mm/memory.c:730
Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 32 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 66 40 49 8d 7c 24 50 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 18 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 
RSP: 0018:ffff88018f31ed88 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffc90001baf000
RDX: 090000010797f1b3 RSI: ffffffff81ab917e RDI: 480000083cbf8d99
RBP: ffff88018f31ee48 R08: ffff880198f8c180 R09: ffffed003ae0a7e0
R10: ffffed003ae0a7e0 R11: ffff8801d7053f07 R12: 480000083cbf8d49
R13: 1ffff10031e63db8 R14: ffffffff815f30e0 R15: ffffffff81abed00
FS:  00007f1dcdd34700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31a23000 CR3: 00000001cb0fc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400