BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:425/tfrc_rx_hist_sample_rtt() CPU: 0 PID: 6251 Comm: syz-executor5 Not tainted 4.16.0+ #12 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1a7/0x27d lib/dump_stack.c:53 tfrc_rx_hist_sample_rtt+0x407/0x4d0 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x696/0xeb3 net/dccp/ccids/ccid3.c:765 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xd9/0x250 net/dccp/input.c:180 dccp_rcv_established+0x88/0xb0 net/dccp/input.c:378 dccp_v4_do_rcv+0x135/0x160 net/dccp/ipv4.c:653 sk_backlog_rcv include/net/sock.h:908 [inline] __sk_receive_skb+0x2ec/0xc00 net/core/sock.c:513 dccp_v4_rcv+0xf6c/0x1cb0 net/dccp/ipv4.c:874 ip_local_deliver_finish+0x2ed/0xbf0 net/ipv4/ip_input.c:216 NF_HOOK include/linux/netfilter.h:288 [inline] ip_local_deliver+0x1ce/0x6e0 net/ipv4/ip_input.c:257 dst_input include/net/dst.h:449 [inline] ip_rcv_finish+0x719/0x2030 net/ipv4/ip_input.c:397 NF_HOOK include/linux/netfilter.h:288 [inline] ip_rcv+0xb7f/0x1820 net/ipv4/ip_input.c:493 __netif_receive_skb_core+0x1a52/0x3480 net/core/dev.c:4562 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4627 process_backlog+0x203/0x740 net/core/dev.c:5307 napi_poll net/core/dev.c:5705 [inline] net_rx_action+0x788/0x1910 net/core/dev.c:5771 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1045 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 do_softirq kernel/softirq.c:177 [inline] __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:728 [inline] ip_finish_output2+0x962/0x1550 net/ipv4/ip_output.c:231 ip_finish_output+0x864/0xd60 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:277 [inline] ip_output+0x1d2/0x860 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_queue_xmit+0x8c0/0x1920 net/ipv4/ip_output.c:504 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_xmit_packet+0x215/0x740 net/dccp/output.c:281 dccp_write_xmit+0x17d/0x1d0 net/dccp/output.c:363 dccp_sendmsg+0x9da/0xe60 net/dccp/proto.c:818 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2116 __sys_sendmsg+0x105/0x250 net/socket.c:2154 SYSC_sendmsg net/socket.c:2163 [inline] SyS_sendmsg+0x29/0x30 net/socket.c:2161 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4552d9 RSP: 002b:00007fc821f68c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fc821f696d4 RCX: 00000000004552d9 RDX: 0000000000000800 RSI: 0000000020000240 RDI: 0000000000000015 RBP: 000000000072bf58 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004e4 R14: 00000000006fa600 R15: 0000000000000001 dccp_close: ABORT with 1 bytes unread kvm [6377]: vcpu0, guest rIP: 0xfff0 Hyper-V unhandled rdmsr: 0x40000004 kvm [6377]: vcpu0, guest rIP: 0xfff0 Hyper-V unhandled rdmsr: 0x40000004 FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) ntfs: (device loop3): read_ntfs_boot_sector(): Primary boot sector is invalid. ntfs: (device loop3): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover. ntfs: (device loop3): ntfs_fill_super(): Not an NTFS volume. FAT-fs (loop1): Unrecognized mount option "˶>O1e3[YqmΕneR! ACIeeF&vw0|j*tuh@Obc_uw` Iwƹ`y % dBU " or missing value hfsplus: unable to parse mount options hfsplus: unable to parse mount options BFS-fs: bfs_fill_super(): No BFS filesystem on loop3 (magic=00000000) ntfs: (device loop3): read_ntfs_boot_sector(): Primary boot sector is invalid. ntfs: (device loop3): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover. ntfs: (device loop3): ntfs_fill_super(): Not an NTFS volume. REISERFS (device loop4): found reiserfs format "3.6" with standard journal REISERFS (device loop4): using ordered data mode reiserfs: using flush barriers REISERFS (device loop4): journal params: device loop4, size 0, journal first block 15, max trans len 1024, max batch 900, max commit age 30, max trans age 30 REISERFS warning (device loop4): journal-2004 journal_init: Journal cnode memory allocation failed (0 bytes). Journal is too large for available memory. Usually this is due to a journal that is too large. binder: 6654:6655 got transaction with unaligned buffers size, 58534 binder: 6654:6655 transaction failed 29201/-22, size 0-0 line 3008 REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space binder: 6654:6655 ioctl 9000aea4 20000700 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: binder_alloc_mmap_handler: 6654 20265000-20279000 already mapped failed -16 binder: 6654:6667 ioctl 40046207 0 returned -16 REISERFS (device loop4): found reiserfs format "3.6" with standard journal REISERFS (device loop4): using ordered data mode reiserfs: using flush barriers binder: 6654:6667 ioctl c0306201 20000fd0 returned -14 REISERFS (device loop4): journal params: device loop4, size 0, journal first block 15, max trans len 1024, max batch 900, max commit age 30, max trans age 30 REISERFS warning (device loop4): journal-2004 journal_init: Journal cnode memory allocation failed (0 bytes). Journal is too large for available memory. Usually this is due to a journal that is too large. REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space bond0 (unregistering): Released all slaves QAT: Invalid ioctl REISERFS (device loop4): found reiserfs format "3.6" with standard journal capability: warning: `syz-executor1' uses deprecated v2 capabilities in a way that may be insecure REISERFS (device loop4): using ordered data mode reiserfs: using flush barriers REISERFS (device loop4): journal params: device loop4, size 0, journal first block 15, max trans len 1024, max batch 900, max commit age 30, max trans age 30 REISERFS warning (device loop4): journal-2004 journal_init: Journal cnode memory allocation failed (0 bytes). Journal is too large for available memory. Usually this is due to a journal that is too large. REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space IPVS: ftp: loaded support on port[0] = 21 IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready 8021q: adding VLAN 0 to HW filter on device bond0 IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready Option 'ܿ ' to dns_resolver key: bad/missing value