9pnet: Insufficient options for proto=fd BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt() CPU: 1 PID: 21231 Comm: syz-executor0 Not tainted 5.0.0-rc5+ #63 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 tfrc_rx_hist_sample_rtt.cold+0x56/0x61 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x5c6/0xeb0 net/dccp/ccids/ccid3.c:767 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xee/0x280 net/dccp/input.c:180 dccp_rcv_established net/dccp/input.c:378 [inline] dccp_rcv_established+0x83/0xb0 net/dccp/input.c:368 dccp_v4_do_rcv+0x139/0x190 net/dccp/ipv4.c:659 sk_backlog_rcv include/net/sock.h:936 [inline] __sk_receive_skb+0x341/0xbf0 net/core/sock.c:473 dccp_v4_rcv+0xeaa/0x1bf1 net/dccp/ipv4.c:880 ip_protocol_deliver_rcu+0x60/0x8e0 net/ipv4/ip_input.c:208 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:234 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:255 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1f4/0x2f0 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0033:0x40bd53 Code: c3 5f ff ff 48 39 d8 77 34 bf e8 03 00 00 bd 00 bf 73 00 e8 7f c0 04 00 eb 0c 48 81 c5 a0 00 00 00 4c 39 e5 74 cc 80 7d 21 00 <74> ee 8b 45 0c 85 c0 74 e7 48 89 ef e8 4c f3 ff ff eb dd 83 3d 97 RSP: 002b:00007ffd0fa72390 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 000000000008cf29 RCX: 00000000004854d1 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000000073bf00 R08: 000000000008cc09 R09: 000000000008cc09 R10: 00007ffd0fa72450 R11: 0000000000000000 R12: 000000000073c900 R13: 000000000008cc3f R14: 00000000000003e8 R15: 000000000073bf0c dccp_close: ABORT with 8192 bytes unread ax25_connect(): syz-executor2 uses autobind, please contact jreuter@yaina.de 9pnet: Insufficient options for proto=fd kauditd_printk_skb: 6 callbacks suppressed audit: type=1800 audit(1549633475.194:154): pid=21352 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor0" name="file0" dev="sda1" ino=17246 res=0 audit: type=1804 audit(1549633475.244:155): pid=21352 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor0" name="/root/syzkaller-testdir823062821/syzkaller.6WEocu/173/file0" dev="sda1" ino=17246 res=1 raw_sendmsg: syz-executor1 forgot to set AF_INET. Fix it! audit: type=1804 audit(1549633475.994:156): pid=21368 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor0" name="/root/syzkaller-testdir823062821/syzkaller.6WEocu/173/file0" dev="sda1" ino=17246 res=1 audit: type=1804 audit(1549633476.024:157): pid=21368 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor0" name="/root/syzkaller-testdir823062821/syzkaller.6WEocu/173/file0" dev="sda1" ino=17246 res=1 audit: type=1800 audit(1549633476.324:158): pid=21393 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor0" name="file0" dev="sda1" ino=17243 res=0 audit: type=1804 audit(1549633476.374:159): pid=21393 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor0" name="/root/syzkaller-testdir823062821/syzkaller.6WEocu/174/file0" dev="sda1" ino=17243 res=1 overlayfs: filesystem on './file0' not supported as upperdir proc: unrecognized mount option "%]?!/^use™A‰urppp0vmnet1wlan0selinuxnodev" or missing value audit: type=1800 audit(1549633478.374:160): pid=21417 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor0" name="file0" dev="sda1" ino=16929 res=0 proc: unrecognized mount option "%]?!/^use™A‰urppp0vmnet1wlan0selinuxnodev" or missing value audit: type=1804 audit(1549633478.444:161): pid=21417 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor0" name="/root/syzkaller-testdir823062821/syzkaller.6WEocu/175/file0" dev="sda1" ino=16929 res=1 audit: type=1800 audit(1549633479.404:162): pid=21443 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor0" name="file0" dev="sda1" ino=16929 res=0 audit: type=1804 audit(1549633479.444:163): pid=21443 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor0" name="/root/syzkaller-testdir823062821/syzkaller.6WEocu/176/file0" dev="sda1" ino=16929 res=1