BUG: unable to handle kernel paging request at ffff8802d6df13ff
PGD af1c067 P4D af1c067 PUD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 4495 Comm: sshd Not tainted 4.16.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:slab_put_obj mm/slab.c:2625 [inline]
RIP: 0010:free_block+0x155/0x280 mm/slab.c:3418
RSP: 0018:ffff8801cf507148 EFLAGS: 00010086
RAX: 0000000000000019 RBX: ffff8801db134d90 RCX: 00000000ffffffff
RDX: ffff8801d6df1c80 RSI: ffff8801d6df1400 RDI: 0000000000000000
RBP: ffff8801cf507190 R08: 00000000075b7c40 R09: ffff8801dac01358
R10: ffffed003b580260 R11: ffff8801dac01303 R12: ffffea00075b7c60
R13: ffff8801dac00340 R14: ffff8801dac01300 R15: ffffea00075b7c40
FS:  00007efc1cace7c0(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8802d6df13ff CR3: 00000001d3702000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 cache_flusharray mm/slab.c:3469 [inline]
 ___cache_free+0x20a/0x2f0 mm/slab.c:3527
 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+0x99/0xe0 mm/kasan/kasan.c:538
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
 slab_post_alloc_hook mm/slab.h:444 [inline]
 slab_alloc_node mm/slab.c:3335 [inline]
 kmem_cache_alloc_node+0x131/0x780 mm/slab.c:3642
 __alloc_skb+0x111/0x780 net/core/skbuff.c:193
 alloc_skb_fclone include/linux/skbuff.h:1029 [inline]
 sk_stream_alloc_skb+0x139/0x960 net/ipv4/tcp.c:875
 tcp_sendmsg_locked+0xe9f/0x3e10 net/ipv4/tcp.c:1289
 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1446
 inet_sendmsg+0x19f/0x690 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:639
 sock_write_iter+0x35a/0x5a0 net/socket.c:908
 call_write_iter include/linux/fs.h:1784 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x5bc/0x880 fs/read_write.c:487
 vfs_write+0x1f8/0x560 fs/read_write.c:549
 ksys_write+0xf9/0x250 fs/read_write.c:598
 SYSC_write fs/read_write.c:610 [inline]
 SyS_write+0x24/0x30 fs/read_write.c:607
 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7efc1ae69370
RSP: 002b:00007fff20308fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000148 RCX: 00007efc1ae69370
RDX: 0000000000000148 RSI: 0000556b9dca91e0 RDI: 0000000000000003
RBP: 0000556b9dca91e0 R08: 0000000000000001 R09: 0101010101010101
R10: 0000000000000008 R11: 0000000000000246 R12: 00007fff2030902c
R13: 0000556b9c923fb4 R14: 0000000000000028 R15: 0000556b9c925ca0
Code: f1 41 0f b6 4d 1c 48 c1 ee 20 29 f0 d3 e8 41 0f b6 4d 1d 01 f0 49 8b 77 10 d3 e8 8d 4f ff 41 89 4f 18 48 85 f6 0f 84 05 01 00 00 <88> 04 0e 41 8b 47 18 85 c0 0f 84 e3 fe ff ff 49 8b 4e 40 4d 8d 
RIP: slab_put_obj mm/slab.c:2625 [inline] RSP: ffff8801cf507148
RIP: free_block+0x155/0x280 mm/slab.c:3418 RSP: ffff8801cf507148
CR2: ffff8802d6df13ff
---[ end trace 73bd55e379947bca ]---