netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'.
BUG: unable to handle kernel paging request at ffff8802cfcde37f
IP: slab_put_obj mm/slab.c:2613 [inline]
IP: free_block+0x158/0x280 mm/slab.c:3406
PGD 9cee067 P4D 9cee067 PUD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 32255 Comm: syz-executor6 Not tainted 4.16.0-rc7+ #5
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:slab_put_obj mm/slab.c:2613 [inline]
RIP: 0010:free_block+0x158/0x280 mm/slab.c:3406
RSP: 0000:ffff8801b3fcf3f8 EFLAGS: 00010082
RAX: 0000000000000007 RBX: ffff8801db234d00 RCX: 00000000ffffffff
RDX: ffff8801cfcde380 RSI: ffff8801cfcde380 RDI: 0000000000000000
RBP: ffff8801b3fcf440 R08: 00000000073f3780 R09: ffff8801dac01358
R10: ffff8801b3fcf308 R11: 0000000000000000 R12: ffff8801dac00340
R13: ffffea00073f37a0 R14: ffff8801dac01300 R15: ffffea00073f3780
FS:  0000000001fac940(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8802cfcde37f CR3: 00000001ca293001 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 cache_flusharray mm/slab.c:3457 [inline]
 ___cache_free+0x20a/0x2f0 mm/slab.c:3515
 qlink_free mm/kasan/quarantine.c:147 [inline]
 qlist_free_all+0x8c/0x160 mm/kasan/quarantine.c:166
 quarantine_reduce+0x141/0x170 mm/kasan/quarantine.c:259
 kasan_kmalloc+0xca/0xe0 mm/kasan/kasan.c:537
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 slab_post_alloc_hook mm/slab.h:443 [inline]
 slab_alloc mm/slab.c:3380 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3540
 anon_vma_chain_alloc mm/rmap.c:128 [inline]
 __anon_vma_prepare+0xbc/0x6b0 mm/rmap.c:182
 anon_vma_prepare include/linux/rmap.h:153 [inline]
 do_huge_pmd_anonymous_page+0x103c/0x19e0 mm/huge_memory.c:679
 create_huge_pmd mm/memory.c:3870 [inline]
 __handle_mm_fault+0x178a/0x38c0 mm/memory.c:4074
 handle_mm_fault+0x44a/0xb10 mm/memory.c:4140
 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1422
 do_page_fault+0xee/0x730 arch/x86/mm/fault.c:1497
 page_fault+0x45/0x50 arch/x86/entry/entry_64.S:1151
RIP: 0033:0x406dbd
RSP: 002b:00007ffe6ac5d2c0 EFLAGS: 00010246
RAX: 0000000020fcdfe8 RBX: 000000000072bea0 RCX: 0000000000000000
RDX: 7e99217328ec5670 RSI: 00000000000000aa RDI: 0000000001fac848
RBP: 0000000000000002 R08: 0000000000000000 R09: 00000000007300a0
R10: 00007ffe6ac5d2c0 R11: 0000000000000246 R12: fffffffffffffffe
R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000002
Code: 0f b6 4c 24 1c 48 c1 ee 20 29 f0 d3 e8 41 0f b6 4c 24 1d 01 f0 49 8b 77 10 d3 e8 8d 4f ff 48 85 f6 41 89 4f 18 0f 84 05 01 00 00 <88> 04 0e 41 8b 47 18 85 c0 0f 84 e0 fe ff ff 49 8b 4e 40 4d 8d 
RIP: slab_put_obj mm/slab.c:2613 [inline] RSP: ffff8801b3fcf3f8
RIP: free_block+0x158/0x280 mm/slab.c:3406 RSP: ffff8801b3fcf3f8
CR2: ffff8802cfcde37f
---[ end trace 74a21a3090e6c2ea ]---