netlink: 1 bytes leftover after parsing attributes in process `syz-executor1'.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000106
IP: qlist_free_all+0x37/0x160 mm/kasan/quarantine.c:163
PGD 1c639c067 P4D 1c639c067 PUD 1a42af067 PMD 0 
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3350 Comm: syz-executor7 Not tainted 4.14.0+ #102
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c5a08180 task.stack: ffff8801a3a08000
RIP: 0010:qlist_free_all+0x37/0x160 mm/kasan/quarantine.c:163
RSP: 0018:ffff8801a3a0fac0 EFLAGS: 00010246
RAX: ffff8801cb4ec100 RBX: 0000000000000286 RCX: 0000000000000000
RDX: ffffea00072d3b00 RSI: ffffea000732aa1f RDI: 0000000000000286
RBP: ffff8801a3a0faf8 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: ffff8801cb4ec100 R15: ffffffff85ecb540
FS:  0000000000000000(0000) GS:ffff8801db500000(0063) knlGS:000000000999f900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000000106 CR3: 00000001a3de9000 CR4: 00000000001406e0
Call Trace:
 quarantine_reduce+0x141/0x170 mm/kasan/quarantine.c:259
 kasan_kmalloc+0xca/0xe0 mm/kasan/kasan.c:536
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 slab_post_alloc_hook mm/slab.h:442 [inline]
 slab_alloc mm/slab.c:3385 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3545
 getname_flags+0xcb/0x580 fs/namei.c:138
 getname fs/namei.c:209 [inline]
 do_rmdir+0xd2/0x5f0 fs/namei.c:3895
 SYSC_rmdir fs/namei.c:3946 [inline]
 SyS_rmdir+0x1a/0x20 fs/namei.c:3944
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125
RIP: 0023:0xf7f01c79
RSP: 002b:00000000084796bc EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 000000000847a7dc RCX: 00000000000108b0
RDX: 000000000847a7dc RSI: 0000000000000065 RDI: 00000000080cd5c9
RBP: 000000000847974c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: 55 48 89 e5 41 57 41 56 41 55 41 54 49 c7 c7 40 b5 ec 85 53 49 89 f4 48 83 ec 10 48 89 7d c8 4d 85 e4 4d 89 e5 0f 84 c8 00 00 00 <49> 63 95 04 01 00 00 4c 8b 30 48 29 d0 49 83 3f 00 48 89 c6 0f 
RIP: qlist_free_all+0x37/0x160 mm/kasan/quarantine.c:163 RSP: ffff8801a3a0fac0
CR2: 0000000000000106
---[ end trace 592b0c53fd275ec9 ]---