BUG: unable to handle kernel paging request at ffffe902ff8ecec0
#PF error: [normal kernel read fault]
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 18879 Comm: syz-executor.5 Not tainted 5.1.0-rc2+ #116
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:____cache_alloc mm/slab.c:3120 [inline]
RIP: 0010:__do_cache_alloc mm/slab.c:3349 [inline]
RIP: 0010:slab_alloc mm/slab.c:3384 [inline]
RIP: 0010:kmem_cache_alloc+0x1c9/0x6f0 mm/slab.c:3554
Code: 7d 00 e8 8a 04 89 01 89 c0 4c 03 3c c5 60 20 6d 88 41 8b 17 85 d2 0f 84 98 01 00 00 83 ea 01 41 c7 47 0c 01 00 00 00 41 89 17 <4d> 8b 7c d7 10 4d 85 ff 0f 85 f2 fe ff ff 65 8b 15 ba 7a 5a 7e 89
RSP: 0018:ffff8880a7f5f858 EFLAGS: 00010012
RAX: 0000000000000001 RBX: 0000000000000dc0 RCX: ffffc90010860000
RDX: 000000005ff776bf RSI: ffffffff83310fdc RDI: 0000000000000007
RBP: ffff8880a7f5f8c0 R08: ffff888099ea44c0 R09: 0000000000000002
R10: ffff888099ea4d68 R11: ffff888099ea44c0 R12: ffff88809b733500
R13: ffff88809b733500 R14: 0000000000000dc0 R15: ffffe8ffffd318b8
FS:  00007fa7526b9700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffe902ff8ecec0 CR3: 000000009426d000 CR4: 00000000001406e0
Call Trace:
 kmem_cache_zalloc include/linux/slab.h:730 [inline]
 dccp_ackvec_alloc+0x24/0x130 net/dccp/ackvec.c:22
 dccp_hdlr_ackvec net/dccp/feat.c:90 [inline]
 dccp_hdlr_ackvec+0x102/0x170 net/dccp/feat.c:84
 __dccp_feat_activate+0x17a/0x270 net/dccp/feat.c:344
 dccp_feat_activate_values+0x33a/0x766 net/dccp/feat.c:1538
 dccp_rcv_request_sent_state_process net/dccp/input.c:472 [inline]
 dccp_rcv_state_process+0x116f/0x1935 net/dccp/input.c:680
 dccp_v4_do_rcv+0x100/0x190 net/dccp/ipv4.c:688
 sk_backlog_rcv include/net/sock.h:945 [inline]
 __release_sock+0x12e/0x3a0 net/core/sock.c:2413
 release_sock+0x59/0x1c0 net/core/sock.c:2929
 inet_wait_for_connect net/ipv4/af_inet.c:592 [inline]
 __inet_stream_connect+0x59f/0xea0 net/ipv4/af_inet.c:684
 inet_stream_connect+0x58/0xa0 net/ipv4/af_inet.c:723
 __sys_connect+0x266/0x330 net/socket.c:1808
 __do_sys_connect net/socket.c:1819 [inline]
 __se_sys_connect net/socket.c:1816 [inline]
 __x64_sys_connect+0x73/0xb0 net/socket.c:1816
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458209
Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa7526b8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458209
RDX: 0000000000000010 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa7526b96d4
R13: 00000000004be59f R14: 00000000004cf128 R15: 00000000ffffffff
Modules linked in:
CR2: ffffe902ff8ecec0
---[ end trace 33598ff6d73c547f ]---
RIP: 0010:____cache_alloc mm/slab.c:3120 [inline]
RIP: 0010:__do_cache_alloc mm/slab.c:3349 [inline]
RIP: 0010:slab_alloc mm/slab.c:3384 [inline]
RIP: 0010:kmem_cache_alloc+0x1c9/0x6f0 mm/slab.c:3554
Code: 7d 00 e8 8a 04 89 01 89 c0 4c 03 3c c5 60 20 6d 88 41 8b 17 85 d2 0f 84 98 01 00 00 83 ea 01 41 c7 47 0c 01 00 00 00 41 89 17 <4d> 8b 7c d7 10 4d 85 ff 0f 85 f2 fe ff ff 65 8b 15 ba 7a 5a 7e 89
RSP: 0018:ffff8880a7f5f858 EFLAGS: 00010012
RAX: 0000000000000001 RBX: 0000000000000dc0 RCX: ffffc90010860000
RDX: 000000005ff776bf RSI: ffffffff83310fdc RDI: 0000000000000007
RBP: ffff8880a7f5f8c0 R08: ffff888099ea44c0 R09: 0000000000000002
R10: ffff888099ea4d68 R11: ffff888099ea44c0 R12: ffff88809b733500
R13: ffff88809b733500 R14: 0000000000000dc0 R15: ffffe8ffffd318b8
FS:  00007fa7526b9700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffe902ff8ecec0 CR3: 000000009426d000 CR4: 00000000001406e0