DUID 00:04:92:3d:a4:bf:d8:99:95:1d:d2:9f:0e:34:7d:20:a7:e6 forked to background, child pid 3179 [ 23.844976][ T3180] 8021q: adding VLAN 0 to HW filter on device bond0 [ 23.856849][ T3180] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.51' (ECDSA) to the list of known hosts. syzkaller login: [ 50.857166][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 50.886414][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.893739][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.901769][ T3595] device bridge_slave_0 entered promiscuous mode [ 50.910002][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.917083][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.925038][ T3595] device bridge_slave_1 entered promiscuous mode [ 50.941292][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.951754][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.970100][ T3595] team0: Port device team_slave_0 added [ 50.976894][ T3595] team0: Port device team_slave_1 added [ 50.990919][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.998033][ T3595] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.023967][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.035546][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.042545][ T3595] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.068555][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.092188][ T3595] device hsr_slave_0 entered promiscuous mode [ 51.098906][ T3595] device hsr_slave_1 entered promiscuous mode [ 51.155143][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.163806][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.172390][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.181034][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.196711][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.203838][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.211140][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.218286][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.248596][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.259940][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.268359][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.275973][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.285079][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.295175][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.304649][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.313238][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.320328][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.339968][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.348380][ T3600] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.355420][ T3600] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.363492][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.371999][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.380912][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.391960][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.399713][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.409771][ T3595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.423044][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.430786][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.441369][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.456484][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.472120][ T3595] device veth0_vlan entered promiscuous mode [ 51.479510][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.488116][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.495800][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.506856][ T3595] device veth1_vlan entered promiscuous mode [ 51.514191][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.530270][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.538662][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.548781][ T3595] device veth0_macvtap entered promiscuous mode [ 51.558013][ T3595] device veth1_macvtap entered promiscuous mode [ 51.570573][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.578574][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.588918][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.599059][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 executing program [ 51.608235][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.616934][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.626185][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.635696][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.646630][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program executing program [ 51.669141][ T3605] netlink: 244 bytes leftover after parsing attributes in process `syz-executor226'. [ 51.682324][ T3605] dccp_xmit_packet: Payload too large (65475) for featneg. [ 51.700963][ T3606] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program executing program [ 51.729916][ T3608] dccp_xmit_packet: Payload too large (65475) for featneg. [ 51.747402][ T3609] dccp_xmit_packet: Payload too large (65475) for featneg. [ 51.765479][ T3610] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program executing program [ 51.784161][ T3611] dccp_xmit_packet: Payload too large (65475) for featneg. [ 51.804436][ T3612] dccp_xmit_packet: Payload too large (65475) for featneg. [ 51.824994][ T3613] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program [ 51.843404][ T3614] dccp_xmit_packet: Payload too large (65475) for featneg. [ 51.862472][ T3615] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program executing program executing program [ 51.882761][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 52.136433][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program [ 52.194402][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 52.402349][ C1] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program [ 52.480709][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() [ 52.502899][ C0] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 52.516837][ C0] CPU: 0 PID: 3667 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 52.526725][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 52.536773][ C0] Call Trace: [ 52.540041][ C0] [ 52.542884][ C0] dump_stack_lvl+0xcd/0x134 [ 52.547485][ C0] tfrc_rx_hist_sample_rtt+0x4ce/0x4e0 [ 52.552933][ C0] ccid3_hc_rx_packet_recv+0x603/0xf50 [ 52.558384][ C0] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 52.563830][ C0] dccp_deliver_input_to_ccids+0xe1/0x260 [ 52.569552][ C0] dccp_rcv_established+0x107/0x160 [ 52.574749][ C0] dccp_v4_do_rcv+0x164/0x1a0 [ 52.579424][ C0] __sk_receive_skb+0x294/0x820 [ 52.584266][ C0] dccp_v4_rcv+0xfbb/0x18d0 [ 52.588761][ C0] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 52.594130][ C0] ip_local_deliver_finish+0x2e8/0x4c0 [ 52.599586][ C0] ip_local_deliver+0x1aa/0x200 [ 52.604436][ C0] ip_rcv_finish+0x1cb/0x2f0 [ 52.609024][ C0] ip_rcv+0xaa/0xd0 [ 52.612826][ C0] ? ip_rcv+0x0/0xd0 [ 52.616712][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 52.622598][ C0] ? __netif_receive_skb_one_core+0x0/0x180 [ 52.628490][ C0] ? do_raw_spin_lock+0x120/0x2a0 [ 52.633506][ C0] ? do_raw_spin_lock+0x0/0x2a0 [ 52.638368][ C0] ? trace_hardirqs_on+0x2d/0x180 [ 52.643383][ C0] __netif_receive_skb+0x1f/0x1c0 [ 52.648429][ C0] process_backlog+0x3e0/0x810 [ 52.653187][ C0] __napi_poll+0xb8/0x770 [ 52.657543][ C0] net_rx_action+0x9fc/0xde0 [ 52.662125][ C0] ? net_rx_action+0x0/0xde0 [ 52.666707][ C0] ? sched_clock_cpu+0x0/0x2b0 [ 52.671564][ C0] ? net_tx_action+0x89e/0xe40 [ 52.676323][ C0] __do_softirq+0x1f7/0xad8 [ 52.680838][ C0] __irq_exit_rcu+0x123/0x180 [ 52.685508][ C0] irq_exit_rcu+0x5/0x20 [ 52.689747][ C0] sysvec_apic_timer_interrupt+0x93/0xc0 [ 52.695385][ C0] [ 52.698298][ C0] [ 52.701225][ C0] asm_sysvec_x86_platform_ipi-0xa/0x20 [ 52.706797][ C0] RIP: 0010:__rcu_read_lock+0x6a/0xf0 [ 52.712164][ C0] Code: 25 40 97 03 00 48 8d bd 3c 04 00 00 8b 9b 3c 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 <83> e0 07 83 c3 01 83 c0 03 38 d0 7c 04 84 d2 75 58 48 b8 00 00 00 [ 52.731773][ C0] RSP: 0018:ffffc900040bf2f0 EFLAGS: 00000a03 [ 52.737830][ C0] RAX: ffff888028d0217c RBX: 0000000000000000 RCX: 0000000000000000 [ 52.745806][ C0] RDX: 0000000000000000 RSI: ffffffff8189e06c RDI: ffff888028d0217c [ 52.753766][ C0] RBP: ffff888028d01d40 R08: 0000000000000005 R09: 0000000000000000 [ 52.761722][ C0] R10: 0000000080000000 R11: 000000000008c001 R12: ffffc900040bf420 [ 52.769683][ C0] R13: 0000000000000000 R14: ffff888028d01d40 R15: ffffea0001c5ce00 [ 52.777653][ C0] ? is_bpf_text_address+0xc/0x170 [ 52.782783][ C0] is_bpf_text_address+0x11/0x170 [ 52.787810][ C0] kernel_text_address+0x39/0x80 [ 52.792772][ C0] __kernel_text_address+0x9/0x30 [ 52.797791][ C0] unwind_get_return_address+0x51/0x90 [ 52.803243][ C0] ? stack_trace_consume_entry+0x0/0x160 [ 52.808873][ C0] arch_stack_walk+0x93/0xe0 [ 52.813457][ C0] ? __kmem_cache_free+0xab/0x3b0 [ 52.818470][ C0] stack_trace_save+0x8c/0xc0 [ 52.823139][ C0] ? stack_trace_save+0x0/0xc0 [ 52.827897][ C0] ? kasan_set_track-0xf/0x30 [ 52.832571][ C0] ? __kmalloc_node_track_caller+0x55/0xc0 [ 52.838378][ C0] ? __alloc_skb+0xd9/0x2f0 [ 52.842886][ C0] ? alloc_skb_with_frags+0x93/0x6c0 [ 52.848186][ C0] ? sock_alloc_send_pskb+0x7a3/0x930 [ 52.853556][ C0] ? dccp_sendmsg+0x2e5/0xd20 [ 52.858230][ C0] ? inet_sendmsg+0x99/0xe0 [ 52.862740][ C0] ? sock_sendmsg+0xcf/0x120 [ 52.867320][ C0] ? ____sys_sendmsg+0x334/0x8c0 [ 52.872250][ C0] kasan_save_stack+0x1e/0x40 [ 52.876923][ C0] ? kasan_save_stack+0x1e/0x40 [ 52.881774][ C0] ? __kasan_unpoison_range-0xf/0x10 [ 52.887060][ C0] ? kasan_save_free_info+0x2a/0x40 [ 52.892265][ C0] ? ____kasan_slab_free+0x160/0x1c0 [ 52.897572][ C0] ? slab_free_freelist_hook+0x8b/0x1c0 [ 52.903122][ C0] ? __kmem_cache_free+0xab/0x3b0 [ 52.908147][ C0] ? skb_free_head+0xac/0x110 [ 52.912838][ C0] ? skb_release_data+0x5e5/0x7f0 [ 52.917855][ C0] ? kfree_skb_reason+0x186/0x4b0 [ 52.922880][ C0] ? dccp_qpolicy_top-0xd/0x90 [ 52.927656][ C0] ? dccp_write_xmit+0x182/0x1d0 [ 52.932609][ C0] ? dccp_sendmsg+0xaea/0xd20 [ 52.937285][ C0] ? inet_sendmsg+0x99/0xe0 [ 52.941779][ C0] ? sock_sendmsg+0xcf/0x120 [ 52.946357][ C0] ? ____sys_sendmsg+0x334/0x8c0 [ 52.951293][ C0] ? ___sys_sendmsg+0x110/0x1b0 [ 52.956135][ C0] ? __sys_sendmmsg+0x18b/0x460 [ 52.960976][ C0] ? __x64_sys_sendmmsg+0x99/0x100 [ 52.966170][ C0] ? do_syscall_64+0x35/0xb0 [ 52.970765][ C0] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.976830][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 52.982283][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 52.987737][ C0] ? lock_acquire+0x4fc/0x630 [ 52.992412][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 52.997879][ C0] ? lock_release+0x5cb/0x810 [ 53.002543][ C0] ? debug_check_no_obj_freed+0x20c/0x420 [ 53.008253][ C0] ? lock_release+0x0/0x810 [ 53.012742][ C0] ? do_raw_spin_lock+0x0/0x2a0 [ 53.017579][ C0] ? __kmem_cache_alloc_node+0x1df/0x3e0 [ 53.023213][ C0] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 53.029010][ C0] ? trace_hardirqs_on+0x2d/0x180 [ 53.034039][ C0] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 53.039847][ C0] ? debug_check_no_obj_freed+0x20c/0x420 [ 53.045563][ C0] __kasan_unpoison_range-0xf/0x10 [ 53.050675][ C0] kasan_save_free_info+0x2a/0x40 [ 53.055716][ C0] ____kasan_slab_free+0x160/0x1c0 [ 53.060824][ C0] slab_free_freelist_hook+0x8b/0x1c0 [ 53.066188][ C0] ? skb_free_head+0xac/0x110 [ 53.071117][ C0] __kmem_cache_free+0xab/0x3b0 [ 53.075982][ C0] skb_free_head+0xac/0x110 [ 53.080486][ C0] skb_release_data+0x5e5/0x7f0 [ 53.085338][ C0] ? dccp_qpolicy_top-0xd/0x90 [ 53.090108][ C0] ? dccp_qpolicy_top-0xd/0x90 [ 53.094867][ C0] kfree_skb_reason+0x186/0x4b0 [ 53.099720][ C0] dccp_qpolicy_top-0xd/0x90 [ 53.104341][ C0] dccp_write_xmit+0x182/0x1d0 [ 53.109097][ C0] ? trace_hardirqs_on+0x2d/0x180 [ 53.114111][ C0] dccp_sendmsg+0xaea/0xd20 [ 53.118612][ C0] ? dccp_sendmsg+0x0/0xd20 [ 53.123109][ C0] ? aa_sk_perm+0x0/0xaa0 [ 53.127447][ C0] ? __import_iovec+0x1f7/0x610 [ 53.132313][ C0] inet_sendmsg+0x99/0xe0 [ 53.136648][ C0] ? inet_sendmsg+0x0/0xe0 [ 53.141137][ C0] sock_sendmsg+0xcf/0x120 [ 53.145544][ C0] ____sys_sendmsg+0x334/0x8c0 [ 53.150298][ C0] ? copy_msghdr_from_user+0xfc/0x150 [ 53.155662][ C0] ? ____sys_sendmsg+0x0/0x8c0 [ 53.160411][ C0] ? __handle_mm_fault+0x0/0x3dc0 [ 53.165430][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 53.170881][ C0] ? lock_release+0x5cb/0x810 [ 53.175546][ C0] ___sys_sendmsg+0x110/0x1b0 [ 53.180215][ C0] ? ___sys_sendmsg+0x0/0x1b0 [ 53.184881][ C0] ? do_user_addr_fault+0x4e0/0x1210 [ 53.190350][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 53.195817][ C0] ? lock_acquire+0x4fc/0x630 [ 53.200496][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 53.205952][ C0] ? lock_release+0x5cb/0x810 [ 53.210708][ C0] ? __might_fault+0xd1/0x170 [ 53.216535][ C0] ? lock_release+0x0/0x810 [ 53.221041][ C0] ? asm_exc_machine_check-0xe/0x40 [ 53.226246][ C0] __sys_sendmmsg+0x18b/0x460 [ 53.230923][ C0] ? __sys_sendmmsg+0x0/0x460 [ 53.236254][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 53.241736][ C0] ? lock_release+0x5cb/0x810 [ 53.246418][ C0] ? __ct_user_exit+0xff/0x150 [ 53.251189][ C0] ? lock_release+0x0/0x810 [ 53.255723][ C0] ? lock_release+0x0/0x810 [ 53.260218][ C0] ? __up_read+0x0/0x720 [ 53.264480][ C0] ? vtime_user_exit+0x218/0x6c0 [ 53.269421][ C0] __x64_sys_sendmmsg+0x99/0x100 [ 53.274375][ C0] ? syscall_enter_from_user_mode+0x22/0xb0 [ 53.280264][ C0] do_syscall_64+0x35/0xb0 [ 53.284702][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.290611][ C0] RIP: 0033:0x7faca2b3fe19 [ 53.295011][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 53.314609][ C0] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 53.323027][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 executing program executing program executing program [ 53.331092][ C0] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 [ 53.339050][ C0] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 53.347014][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 [ 53.354977][ C0] R13: 00000000000f4240 R14: 000000000000cce5 R15: 00007fffdb441b14 [ 53.363068][ C0] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 53.544850][ C1] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 53.764329][ C1] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 54.576235][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 54.922943][ C1] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 55.113863][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 55.442839][ C1] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 55.456809][ C1] CPU: 1 PID: 3849 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 55.466699][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 55.476750][ C1] Call Trace: [ 55.480051][ C1] [ 55.482891][ C1] dump_stack_lvl+0xcd/0x134 [ 55.487588][ C1] tfrc_rx_hist_sample_rtt+0x4ce/0x4e0 [ 55.493047][ C1] ccid3_hc_rx_packet_recv+0x603/0xf50 [ 55.498519][ C1] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 55.503986][ C1] dccp_deliver_input_to_ccids+0xe1/0x260 [ 55.509722][ C1] dccp_rcv_established+0x107/0x160 [ 55.514920][ C1] dccp_v4_do_rcv+0x164/0x1a0 [ 55.519616][ C1] __sk_receive_skb+0x294/0x820 [ 55.524478][ C1] dccp_v4_rcv+0xfbb/0x18d0 [ 55.528992][ C1] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 55.534449][ C1] ip_local_deliver_finish+0x2e8/0x4c0 [ 55.539918][ C1] ip_local_deliver+0x1aa/0x200 [ 55.544769][ C1] ip_rcv_finish+0x1cb/0x2f0 [ 55.549360][ C1] ip_rcv+0xaa/0xd0 [ 55.553165][ C1] ? ip_rcv+0x0/0xd0 [ 55.557054][ C1] __netif_receive_skb_one_core+0x114/0x180 [ 55.563054][ C1] ? __netif_receive_skb_one_core+0x0/0x180 [ 55.568963][ C1] ? do_raw_spin_lock+0x120/0x2a0 [ 55.573986][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 55.578824][ C1] ? trace_hardirqs_on+0x2d/0x180 [ 55.583837][ C1] __netif_receive_skb+0x1f/0x1c0 [ 55.588856][ C1] process_backlog+0x3e0/0x810 [ 55.593611][ C1] __napi_poll+0xb8/0x770 [ 55.597930][ C1] net_rx_action+0x9fc/0xde0 [ 55.602510][ C1] ? net_rx_action+0x0/0xde0 [ 55.607088][ C1] ? sched_clock_cpu+0x0/0x2b0 [ 55.611951][ C1] ? net_tx_action+0x89e/0xe40 [ 55.622198][ C1] __do_softirq+0x1f7/0xad8 [ 55.626703][ C1] __irq_exit_rcu+0x123/0x180 [ 55.631370][ C1] irq_exit_rcu+0x5/0x20 [ 55.635602][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 55.641238][ C1] [ 55.644155][ C1] [ 55.647081][ C1] asm_sysvec_x86_platform_ipi-0xa/0x20 [ 55.652621][ C1] RIP: 0010:stack_trace_save+0x6c/0xc0 [ 55.658083][ C1] Code: 00 00 f3 c7 43 08 f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 44 24 78 31 c0 48 89 7c 24 20 48 c7 c7 30 0e 6b 81 89 74 24 28 <48> 8d 74 24 20 89 54 24 2c 48 c7 44 24 30 00 00 00 00 65 48 8b 14 [ 55.677685][ C1] RSP: 0018:ffffc900046df390 EFLAGS: 00000246 [ 55.683755][ C1] RAX: 0000000000000000 RBX: fffff520008dbe72 RCX: 0000000000000000 [ 55.691714][ C1] RDX: 0000000000000001 RSI: 0000000000000040 RDI: ffffffff816b0e30 [ 55.699673][ C1] RBP: ffff888011842000 R08: ffffc900046df628 R09: ffffed100f7bb0c0 [ 55.707640][ C1] R10: 0000000000000000 R11: 000000000008c001 R12: 0000000000082cc0 [ 55.715614][ C1] R13: 0000000000000600 R14: ffffffff87545563 R15: 0000000000000600 [ 55.723578][ C1] ? alloc_skb_with_frags+0x93/0x6c0 [ 55.728872][ C1] ? stack_trace_consume_entry+0x0/0x160 [ 55.734509][ C1] ? stack_trace_save+0x0/0xc0 [ 55.739271][ C1] ? kasan_set_track-0xf/0x30 [ 55.743956][ C1] kasan_save_stack+0x1e/0x40 [ 55.748678][ C1] ? kmem_cache_alloc_node+0x2fc/0x400 [ 55.754281][ C1] ? __alloc_skb+0x210/0x2f0 [ 55.758901][ C1] ? alloc_skb_with_frags+0x93/0x6c0 [ 55.764209][ C1] ? sock_alloc_send_pskb+0x7a3/0x930 [ 55.769572][ C1] ? dccp_sendmsg+0x2e5/0xd20 [ 55.774255][ C1] ? inet_sendmsg+0x99/0xe0 [ 55.778747][ C1] ? sock_sendmsg+0xcf/0x120 [ 55.783330][ C1] ? ____sys_sendmsg+0x334/0x8c0 [ 55.788256][ C1] ? ___sys_sendmsg+0x110/0x1b0 [ 55.793114][ C1] ? __sys_sendmmsg+0x18b/0x460 [ 55.797966][ C1] ? __x64_sys_sendmmsg+0x99/0x100 [ 55.803070][ C1] ? do_syscall_64+0x35/0xb0 [ 55.807676][ C1] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.813764][ C1] ? kasan_save_free_info+0x2a/0x40 [ 55.818956][ C1] ? ____kasan_slab_free+0x160/0x1c0 [ 55.824238][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 55.829696][ C1] ? lock_acquire+0x4fc/0x630 [ 55.834365][ C1] ? ____kasan_slab_free+0x160/0x1c0 [ 55.839656][ C1] ? lock_acquire+0x0/0x630 [ 55.844156][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 55.849621][ C1] ? lock_release+0x5cb/0x810 [ 55.854291][ C1] ? inet_sendmsg+0x99/0xe0 [ 55.858786][ C1] ? __kmem_cache_alloc_node+0x4a/0x3e0 [ 55.864326][ C1] ? lock_release+0x0/0x810 [ 55.868907][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 55.874371][ C1] ? lock_release+0x5cb/0x810 [ 55.879040][ C1] ? lock_release+0x5cb/0x810 [ 55.883725][ C1] ? kmem_cache_alloc_node+0x49/0x400 [ 55.889096][ C1] ? __kmem_cache_alloc_node+0x1df/0x3e0 [ 55.894722][ C1] __kasan_unpoison_range-0xf/0x10 [ 55.899839][ C1] ____kasan_slab_free-0xf/0x1c0 [ 55.904796][ C1] __kmalloc_node_track_caller+0x55/0xc0 [ 55.910423][ C1] __alloc_skb+0xd9/0x2f0 [ 55.914744][ C1] alloc_skb_with_frags+0x93/0x6c0 [ 55.919848][ C1] ? aa_label_sk_perm+0x156/0x530 [ 55.924865][ C1] sock_alloc_send_pskb+0x7a3/0x930 [ 55.930051][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 55.935505][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 55.940956][ C1] ? lock_acquire+0x4fc/0x630 [ 55.945623][ C1] ? sock_alloc_send_pskb+0x0/0x930 [ 55.950811][ C1] ? lock_release+0x0/0x810 [ 55.955304][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 55.960149][ C1] ? __local_bh_enable_ip+0xa0/0x120 [ 55.965431][ C1] dccp_sendmsg+0x2e5/0xd20 [ 55.969932][ C1] ? aa_sk_perm+0x30f/0xaa0 [ 55.974441][ C1] ? dccp_sendmsg+0x0/0xd20 [ 55.978935][ C1] ? aa_sk_perm+0x0/0xaa0 [ 55.983272][ C1] ? __import_iovec+0x1f7/0x610 [ 55.988120][ C1] inet_sendmsg+0x99/0xe0 [ 55.992449][ C1] ? inet_sendmsg+0x0/0xe0 [ 55.996855][ C1] sock_sendmsg+0xcf/0x120 [ 56.001264][ C1] ____sys_sendmsg+0x334/0x8c0 [ 56.006023][ C1] ? copy_msghdr_from_user+0xfc/0x150 [ 56.011392][ C1] ? ____sys_sendmsg+0x0/0x8c0 [ 56.016151][ C1] ? __handle_mm_fault+0x0/0x3dc0 [ 56.021173][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.026626][ C1] ? lock_release+0x5cb/0x810 [ 56.031303][ C1] ___sys_sendmsg+0x110/0x1b0 [ 56.035973][ C1] ? ___sys_sendmsg+0x0/0x1b0 [ 56.040644][ C1] ? do_user_addr_fault+0x4e0/0x1210 [ 56.045922][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.051373][ C1] ? lock_acquire+0x4fc/0x630 [ 56.056039][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.061496][ C1] ? lock_release+0x5cb/0x810 [ 56.066164][ C1] ? __might_fault+0xd1/0x170 [ 56.070828][ C1] ? lock_release+0x0/0x810 [ 56.075314][ C1] ? asm_exc_machine_check-0xe/0x40 [ 56.080509][ C1] __sys_sendmmsg+0x18b/0x460 [ 56.085200][ C1] ? __sys_sendmmsg+0x0/0x460 [ 56.089873][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.095346][ C1] ? lock_release+0x5cb/0x810 [ 56.100021][ C1] ? __ct_user_exit+0xff/0x150 [ 56.104776][ C1] ? lock_release+0x0/0x810 [ 56.109269][ C1] ? lock_release+0x0/0x810 [ 56.113758][ C1] ? __up_read+0x0/0x720 [ 56.117996][ C1] ? vtime_user_exit+0x218/0x6c0 [ 56.122929][ C1] __x64_sys_sendmmsg+0x99/0x100 [ 56.127858][ C1] ? syscall_enter_from_user_mode+0x22/0xb0 [ 56.133747][ C1] do_syscall_64+0x35/0xb0 [ 56.138155][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.144041][ C1] RIP: 0033:0x7faca2b3fe19 [ 56.148441][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 56.168037][ C1] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 56.176438][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 [ 56.184397][ C1] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 executing program [ 56.192354][ C1] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 56.200311][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 [ 56.208277][ C1] R13: 00000000000f4240 R14: 000000000000d86b R15: 00007fffdb441b14 [ 56.216245][ C1] [ 56.236586][ C1] BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:691/ccid3_first_li() [ 56.246213][ C1] CPU: 1 PID: 3850 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 56.256091][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 56.266136][ C1] Call Trace: [ 56.269404][ C1] [ 56.272233][ C1] dump_stack_lvl+0xcd/0x134 [ 56.276818][ C1] ccid3_first_li.cold+0x67/0x17a [ 56.281834][ C1] tfrc_lh_interval_add+0x640/0x8e0 [ 56.287029][ C1] ? ccid3_first_li+0x0/0x400 [ 56.291696][ C1] tfrc_rx_handle_loss+0x476/0x2030 [ 56.296881][ C1] ? ccid3_first_li+0x0/0x400 [ 56.301556][ C1] ccid3_hc_rx_packet_recv+0x3a9/0xf50 [ 56.307007][ C1] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 56.312454][ C1] dccp_deliver_input_to_ccids+0xe1/0x260 [ 56.318177][ C1] dccp_rcv_established+0x107/0x160 [ 56.323392][ C1] dccp_v4_do_rcv+0x164/0x1a0 [ 56.328065][ C1] __sk_receive_skb+0x294/0x820 [ 56.332907][ C1] dccp_v4_rcv+0xfbb/0x18d0 [ 56.337404][ C1] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 56.342772][ C1] ip_local_deliver_finish+0x2e8/0x4c0 [ 56.348227][ C1] ip_local_deliver+0x1aa/0x200 [ 56.353074][ C1] ip_rcv_finish+0x1cb/0x2f0 [ 56.357669][ C1] ip_rcv+0xaa/0xd0 [ 56.361470][ C1] ? ip_rcv+0x0/0xd0 [ 56.365358][ C1] __netif_receive_skb_one_core+0x114/0x180 [ 56.371243][ C1] ? __netif_receive_skb_one_core+0x0/0x180 [ 56.377132][ C1] ? do_raw_spin_lock+0x120/0x2a0 [ 56.382144][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 56.386985][ C1] __netif_receive_skb+0x1f/0x1c0 [ 56.392000][ C1] process_backlog+0x3e0/0x810 [ 56.396755][ C1] __napi_poll+0xb8/0x770 [ 56.401076][ C1] net_rx_action+0x9fc/0xde0 [ 56.405678][ C1] ? net_rx_action+0x0/0xde0 [ 56.410260][ C1] ? sched_clock_cpu+0x0/0x2b0 [ 56.415021][ C1] __do_softirq+0x1f7/0xad8 [ 56.419519][ C1] do_softirq.part.0+0xde/0x130 [ 56.424358][ C1] [ 56.427274][ C1] [ 56.430192][ C1] ? ip_finish_output2+0x7a2/0x2170 [ 56.435380][ C1] __local_bh_enable_ip+0x102/0x120 [ 56.440576][ C1] ip_finish_output2+0x7d0/0x2170 [ 56.445590][ C1] ? ip_finish_output2+0x0/0x2170 [ 56.450610][ C1] ? ip_skb_dst_mtu+0x0/0xcc0 [ 56.455296][ C1] ? lock_acquire+0x4fc/0x630 [ 56.459961][ C1] __ip_finish_output+0x396/0x650 [ 56.464987][ C1] ip_finish_output+0x2d/0x280 [ 56.469745][ C1] ip_output+0x19f/0x310 [ 56.473973][ C1] __ip_queue_xmit+0x8de/0x1be0 [ 56.478811][ C1] dccp_transmit_skb+0x7e9/0x1420 [ 56.483825][ C1] dccp_send_sync+0x1c0/0x260 [ 56.488494][ C1] __dccp_rcv_established.constprop.0+0x265/0x3b0 [ 56.494898][ C1] dccp_rcv_established+0x112/0x160 [ 56.500102][ C1] dccp_v4_do_rcv+0x164/0x1a0 [ 56.504799][ C1] __release_sock+0x12f/0x3a0 [ 56.509470][ C1] release_sock+0x54/0x1b0 [ 56.513891][ C1] dccp_sendmsg+0x6cc/0xd20 [ 56.518389][ C1] ? dccp_sendmsg+0x0/0xd20 [ 56.522881][ C1] ? aa_sk_perm+0x0/0xaa0 [ 56.527198][ C1] ? __import_iovec+0x1f7/0x610 [ 56.532053][ C1] inet_sendmsg+0x99/0xe0 [ 56.536372][ C1] ? inet_sendmsg+0x0/0xe0 [ 56.540775][ C1] sock_sendmsg+0xcf/0x120 [ 56.545279][ C1] ____sys_sendmsg+0x334/0x8c0 [ 56.550061][ C1] ? copy_msghdr_from_user+0xfc/0x150 [ 56.555425][ C1] ? ____sys_sendmsg+0x0/0x8c0 [ 56.560182][ C1] ? lock_release+0x0/0x810 [ 56.564671][ C1] ___sys_sendmsg+0x110/0x1b0 [ 56.569340][ C1] ? ___sys_sendmsg+0x0/0x1b0 [ 56.574007][ C1] ? get_page_from_freelist+0x0/0x2d50 [ 56.579450][ C1] ? prepare_alloc_pages+0x178/0x570 [ 56.584718][ C1] ? lock_acquire+0x0/0x630 [ 56.589207][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.594661][ C1] ? lock_acquire+0x4fc/0x630 [ 56.599324][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.604783][ C1] ? lock_acquire+0x4fc/0x630 [ 56.609445][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.614894][ C1] ? lock_release+0x5cb/0x810 [ 56.619556][ C1] ? lock_release+0x5cb/0x810 [ 56.624246][ C1] ? folio_add_lru+0x341/0x680 [ 56.628997][ C1] ? lock_release+0x0/0x810 [ 56.633487][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.638955][ C1] ? lock_release+0x5cb/0x810 [ 56.643619][ C1] ? __handle_mm_fault+0x2e5a/0x3dc0 [ 56.648894][ C1] ? lock_release+0x0/0x810 [ 56.653383][ C1] ? folio_flags.constprop.0+0x53/0x150 [ 56.658915][ C1] ? __fget_light+0x20a/0x270 [ 56.663583][ C1] __sys_sendmmsg+0x18b/0x460 [ 56.668260][ C1] ? __sys_sendmmsg+0x0/0x460 [ 56.672932][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 56.678383][ C1] ? lock_release+0x5cb/0x810 [ 56.683053][ C1] ? __ct_user_exit+0xff/0x150 [ 56.687803][ C1] ? lock_release+0x0/0x810 [ 56.692293][ C1] ? lock_release+0x0/0x810 [ 56.696781][ C1] ? __up_read+0x0/0x720 [ 56.701017][ C1] ? vtime_user_exit+0x218/0x6c0 [ 56.705948][ C1] __x64_sys_sendmmsg+0x99/0x100 [ 56.710875][ C1] ? syscall_enter_from_user_mode+0x22/0xb0 [ 56.716753][ C1] do_syscall_64+0x35/0xb0 [ 56.721164][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.727050][ C1] RIP: 0033:0x7faca2b3fe19 [ 56.731458][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 56.751063][ C1] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 56.759464][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 [ 56.767419][ C1] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 [ 56.775405][ C1] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 56.783377][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 [ 56.791337][ C1] R13: 00000000000f4240 R14: 000000000000d875 R15: 00007fffdb441b14 executing program executing program [ 56.799307][ C1] [ 56.815720][ T3851] net_ratelimit: 226 callbacks suppressed [ 56.815732][ T3851] dccp_xmit_packet: Payload too large (65475) for featneg. executing program [ 56.839380][ T3852] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program executing program [ 56.876614][ T3853] dccp_xmit_packet: Payload too large (65475) for featneg. [ 56.897127][ T3854] dccp_xmit_packet: Payload too large (65475) for featneg. [ 56.915707][ T3855] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program executing program [ 56.934389][ T3856] dccp_xmit_packet: Payload too large (65475) for featneg. [ 56.962628][ T3858] dccp_xmit_packet: Payload too large (65475) for featneg. [ 56.980139][ T3859] dccp_xmit_packet: Payload too large (65475) for featneg. [ 56.990831][ C0] ccid3_first_li: No RTT estimate available, using fallback RTT [ 56.998539][ C0] ccid3_first_li: X_recv==0 [ 57.003042][ C0] BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:691/ccid3_first_li() [ 57.012518][ C0] CPU: 0 PID: 3859 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 57.022420][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 57.032465][ C0] Call Trace: [ 57.035736][ C0] [ 57.038579][ C0] dump_stack_lvl+0xcd/0x134 [ 57.043167][ C0] ccid3_first_li.cold+0x67/0x17a [ 57.048197][ C0] tfrc_lh_interval_add+0x640/0x8e0 [ 57.053407][ C0] ? ccid3_first_li+0x0/0x400 [ 57.058082][ C0] tfrc_rx_handle_loss+0x476/0x2030 [ 57.063291][ C0] ? ccid3_first_li+0x0/0x400 [ 57.067960][ C0] ccid3_hc_rx_packet_recv+0x3a9/0xf50 [ 57.073411][ C0] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 57.078861][ C0] dccp_deliver_input_to_ccids+0xe1/0x260 [ 57.084570][ C0] dccp_rcv_established+0x107/0x160 [ 57.089765][ C0] dccp_v4_do_rcv+0x164/0x1a0 [ 57.094431][ C0] __sk_receive_skb+0x294/0x820 [ 57.099271][ C0] dccp_v4_rcv+0xfbb/0x18d0 [ 57.103764][ C0] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 57.109131][ C0] ip_local_deliver_finish+0x2e8/0x4c0 [ 57.114584][ C0] ip_local_deliver+0x1aa/0x200 [ 57.119428][ C0] ip_rcv_finish+0x1cb/0x2f0 [ 57.124012][ C0] ip_rcv+0xaa/0xd0 [ 57.127827][ C0] ? ip_rcv+0x0/0xd0 [ 57.131742][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 57.137636][ C0] ? __netif_receive_skb_one_core+0x0/0x180 [ 57.143537][ C0] ? do_raw_spin_lock+0x120/0x2a0 [ 57.148549][ C0] ? do_raw_spin_lock+0x0/0x2a0 [ 57.153389][ C0] __netif_receive_skb+0x1f/0x1c0 [ 57.158421][ C0] process_backlog+0x3e0/0x810 [ 57.163178][ C0] __napi_poll+0xb8/0x770 [ 57.167592][ C0] net_rx_action+0x9fc/0xde0 [ 57.172186][ C0] ? net_rx_action+0x0/0xde0 [ 57.176764][ C0] ? sched_clock_cpu+0x0/0x2b0 [ 57.181519][ C0] __do_softirq+0x1f7/0xad8 [ 57.186012][ C0] do_softirq.part.0+0xde/0x130 [ 57.190852][ C0] [ 57.193766][ C0] [ 57.196679][ C0] ? ip_finish_output2+0x7a2/0x2170 [ 57.201868][ C0] __local_bh_enable_ip+0x102/0x120 [ 57.207053][ C0] ip_finish_output2+0x7d0/0x2170 [ 57.212080][ C0] ? ip_finish_output2+0x0/0x2170 [ 57.217104][ C0] ? ip_skb_dst_mtu+0x0/0xcc0 [ 57.221769][ C0] ? lock_acquire+0x4fc/0x630 [ 57.226435][ C0] __ip_finish_output+0x396/0x650 [ 57.231453][ C0] ip_finish_output+0x2d/0x280 [ 57.236225][ C0] ip_output+0x19f/0x310 [ 57.240455][ C0] __ip_queue_xmit+0x8de/0x1be0 [ 57.245302][ C0] dccp_transmit_skb+0x7e9/0x1420 [ 57.250320][ C0] dccp_send_sync+0x1c0/0x260 [ 57.254989][ C0] __dccp_rcv_established.constprop.0+0x265/0x3b0 [ 57.261397][ C0] dccp_rcv_established+0x112/0x160 [ 57.266590][ C0] dccp_v4_do_rcv+0x164/0x1a0 [ 57.271272][ C0] __release_sock+0x12f/0x3a0 [ 57.276027][ C0] release_sock+0x54/0x1b0 [ 57.280437][ C0] dccp_sendmsg+0x6cc/0xd20 [ 57.284936][ C0] ? dccp_sendmsg+0x0/0xd20 [ 57.289459][ C0] ? aa_sk_perm+0x0/0xaa0 [ 57.293781][ C0] ? __import_iovec+0x1f7/0x610 [ 57.298626][ C0] inet_sendmsg+0x99/0xe0 [ 57.302954][ C0] ? inet_sendmsg+0x0/0xe0 [ 57.307356][ C0] sock_sendmsg+0xcf/0x120 [ 57.311761][ C0] ____sys_sendmsg+0x334/0x8c0 [ 57.316514][ C0] ? copy_msghdr_from_user+0xfc/0x150 [ 57.321878][ C0] ? ____sys_sendmsg+0x0/0x8c0 [ 57.326631][ C0] ? __handle_mm_fault+0x0/0x3dc0 [ 57.331647][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 57.337104][ C0] ? lock_release+0x5cb/0x810 [ 57.341769][ C0] ___sys_sendmsg+0x110/0x1b0 [ 57.346440][ C0] ? ___sys_sendmsg+0x0/0x1b0 [ 57.351105][ C0] ? do_user_addr_fault+0x4e0/0x1210 [ 57.356475][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 57.361931][ C0] ? lock_acquire+0x4fc/0x630 [ 57.366598][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 57.372055][ C0] ? lock_release+0x5cb/0x810 [ 57.376723][ C0] ? __might_fault+0xd1/0x170 [ 57.381385][ C0] ? lock_release+0x0/0x810 [ 57.385875][ C0] ? asm_exc_machine_check-0xe/0x40 [ 57.391072][ C0] __sys_sendmmsg+0x18b/0x460 [ 57.395749][ C0] ? __sys_sendmmsg+0x0/0x460 [ 57.400423][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 57.405880][ C0] ? lock_release+0x5cb/0x810 [ 57.410547][ C0] ? __ct_user_exit+0xff/0x150 [ 57.415301][ C0] ? lock_release+0x0/0x810 [ 57.419795][ C0] ? lock_release+0x0/0x810 [ 57.424283][ C0] ? __up_read+0x0/0x720 [ 57.428523][ C0] ? vtime_user_exit+0x218/0x6c0 [ 57.433459][ C0] __x64_sys_sendmmsg+0x99/0x100 [ 57.438391][ C0] ? syscall_enter_from_user_mode+0x22/0xb0 [ 57.444273][ C0] do_syscall_64+0x35/0xb0 [ 57.448695][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.454581][ C0] RIP: 0033:0x7faca2b3fe19 [ 57.458982][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 57.478600][ C0] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 executing program executing program executing program [ 57.487008][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 [ 57.494968][ C0] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 [ 57.502939][ C0] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 57.510898][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 [ 57.518856][ C0] R13: 00000000000f4240 R14: 000000000000de68 R15: 00007fffdb441b14 [ 57.526820][ C0] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 57.676045][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 58.020917][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 58.537590][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 58.732781][ C1] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 58.746721][ C1] CPU: 1 PID: 3966 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 58.756597][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 58.766726][ C1] Call Trace: [ 58.769990][ C1] [ 58.772822][ C1] dump_stack_lvl+0xcd/0x134 [ 58.777407][ C1] tfrc_rx_hist_sample_rtt+0x4ce/0x4e0 [ 58.782855][ C1] ccid3_hc_rx_packet_recv+0x603/0xf50 [ 58.788301][ C1] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 58.793746][ C1] dccp_deliver_input_to_ccids+0xe1/0x260 [ 58.799469][ C1] dccp_rcv_established+0x107/0x160 [ 58.804680][ C1] dccp_v4_do_rcv+0x164/0x1a0 [ 58.809363][ C1] __sk_receive_skb+0x294/0x820 [ 58.814220][ C1] dccp_v4_rcv+0xfbb/0x18d0 [ 58.818733][ C1] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 58.824120][ C1] ip_local_deliver_finish+0x2e8/0x4c0 [ 58.829594][ C1] ip_local_deliver+0x1aa/0x200 [ 58.834457][ C1] ip_rcv_finish+0x1cb/0x2f0 [ 58.839068][ C1] ip_rcv+0xaa/0xd0 [ 58.842887][ C1] ? ip_rcv+0x0/0xd0 [ 58.846821][ C1] __netif_receive_skb_one_core+0x114/0x180 [ 58.852739][ C1] ? __netif_receive_skb_one_core+0x0/0x180 [ 58.858651][ C1] ? do_raw_spin_lock+0x120/0x2a0 [ 58.863701][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 58.868574][ C1] ? trace_hardirqs_on+0x2d/0x180 [ 58.873628][ C1] __netif_receive_skb+0x1f/0x1c0 [ 58.878837][ C1] process_backlog+0x3e0/0x810 [ 58.883619][ C1] __napi_poll+0xb8/0x770 [ 58.888041][ C1] net_rx_action+0x9fc/0xde0 [ 58.892639][ C1] ? net_rx_action+0x0/0xde0 [ 58.897234][ C1] ? sched_clock_cpu+0x0/0x2b0 [ 58.902010][ C1] ? net_tx_action+0x89e/0xe40 [ 58.907030][ C1] __do_softirq+0x1f7/0xad8 [ 58.911734][ C1] __irq_exit_rcu+0x123/0x180 [ 58.916424][ C1] irq_exit_rcu+0x5/0x20 [ 58.920671][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 58.926318][ C1] [ 58.929245][ C1] [ 58.932169][ C1] asm_sysvec_x86_platform_ipi-0xa/0x20 [ 58.937733][ C1] RIP: 0010:mtree_range_walk+0x535/0x920 [ 58.943374][ C1] Code: 80 3c 08 00 0f 85 b4 03 00 00 48 8b 6d 00 4c 89 e6 31 ff e8 dd 31 39 f8 48 83 c5 01 4d 85 e4 4c 0f 44 64 24 40 e9 62 fd ff ff d6 34 39 f8 48 8b 04 24 48 8d 68 08 e9 ed fb ff ff e8 c4 34 39 [ 58.963070][ C1] RSP: 0018:ffffc90004f07960 EFLAGS: 00000202 [ 58.969141][ C1] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff89435c2e [ 58.977113][ C1] RDX: ffff8880230b0000 RSI: 0000000000000000 RDI: 0000000000000005 [ 58.985095][ C1] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000003 [ 58.993067][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 00007faca2bb9fff [ 59.001039][ C1] R13: ffff88807d17780c R14: 0000000000000000 R15: ffff88807d7a6cc0 [ 59.009016][ C1] ? mtree_range_walk+0x10e/0x920 [ 59.014059][ C1] mt_find+0x463/0xee0 [ 59.018130][ C1] ? lock_acquire+0x0/0x630 [ 59.022637][ C1] ? mt_find+0x0/0xee0 [ 59.026712][ C1] find_vma+0x108/0x1a0 [ 59.030876][ C1] ? find_vma+0x0/0x1a0 [ 59.035061][ C1] ? ___sys_sendmsg+0x0/0x1b0 [ 59.039773][ C1] do_user_addr_fault+0x2c1/0x1210 [ 59.044912][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 59.050387][ C1] exc_page_fault+0x94/0x170 [ 59.054995][ C1] asm_exc_machine_check-0xe/0x40 [ 59.060031][ C1] RIP: 0010:__put_user_nocheck_4-0xe/0x10 [ 59.065766][ C1] Code: 01 31 c9 0f 01 ca c3 90 0f 01 cb 66 89 01 31 c9 0f 01 ca c3 0f 1f 40 00 48 bb fd ef ff ff ff 7f 00 00 48 39 d9 73 54 0f 01 cb <89> 01 31 c9 0f 01 ca c3 66 0f 1f 44 00 00 0f 01 cb 89 01 31 c9 0f [ 59.085394][ C1] RSP: 0018:ffffc90004f07ce8 EFLAGS: 00050293 [ 59.091460][ C1] RAX: 0000000000000000 RBX: 00007fffffffeffd RCX: 0000000020002038 [ 59.099436][ C1] RDX: ffff8880230b0000 RSI: ffffffff87514248 RDI: ffffffff8dc23410 [ 59.107412][ C1] RBP: 0000000000040000 R08: 0000000000000000 R09: ffffffff8dc23417 [ 59.115386][ C1] R10: 0000000000000000 R11: 000000000008c001 R12: 0000000000000006 [ 59.123356][ C1] R13: 0000000020002000 R14: 0000000000000400 R15: 00000000000003ff [ 59.131332][ C1] ? __sys_sendmmsg+0x1b8/0x460 [ 59.136204][ C1] __sys_sendmmsg+0x1c5/0x460 [ 59.140918][ C1] ? __sys_sendmmsg+0x0/0x460 [ 59.145607][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 59.151079][ C1] ? lock_release+0x5cb/0x810 [ 59.155771][ C1] ? __ct_user_exit+0xff/0x150 [ 59.160540][ C1] ? lock_release+0x0/0x810 [ 59.165048][ C1] ? lock_release+0x0/0x810 [ 59.169550][ C1] ? __up_read+0x0/0x720 [ 59.173817][ C1] ? vtime_user_exit+0x218/0x6c0 [ 59.178771][ C1] __x64_sys_sendmmsg+0x99/0x100 [ 59.183726][ C1] ? syscall_enter_from_user_mode+0x22/0xb0 [ 59.189622][ C1] do_syscall_64+0x35/0xb0 [ 59.194048][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 59.199951][ C1] RIP: 0033:0x7faca2b3fe19 [ 59.204366][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 59.223978][ C1] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 executing program executing program [ 59.232390][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 [ 59.240364][ C1] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 [ 59.248333][ C1] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 59.256306][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 [ 59.264277][ C1] R13: 00000000000f4240 R14: 000000000000e545 R15: 00007fffdb441b14 [ 59.272281][ C1] executing program executing program executing program executing program executing program [ 59.301072][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 59.429989][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 59.522936][ C1] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 59.807030][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program [ 59.893968][ C1] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 59.907984][ C1] CPU: 1 PID: 4021 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 59.917874][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 59.927934][ C1] Call Trace: [ 59.931200][ C1] [ 59.934031][ C1] dump_stack_lvl+0xcd/0x134 [ 59.938620][ C1] tfrc_rx_hist_sample_rtt+0x4ce/0x4e0 [ 59.944072][ C1] ccid3_hc_rx_packet_recv+0x603/0xf50 [ 59.949527][ C1] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 59.954976][ C1] dccp_deliver_input_to_ccids+0xe1/0x260 [ 59.960687][ C1] dccp_rcv_established+0x107/0x160 [ 59.965878][ C1] dccp_v4_do_rcv+0x164/0x1a0 [ 59.970556][ C1] __sk_receive_skb+0x294/0x820 [ 59.975421][ C1] dccp_v4_rcv+0xfbb/0x18d0 [ 59.979932][ C1] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 59.985322][ C1] ip_local_deliver_finish+0x2e8/0x4c0 [ 59.990795][ C1] ip_local_deliver+0x1aa/0x200 [ 59.995675][ C1] ip_rcv_finish+0x1cb/0x2f0 [ 60.000297][ C1] ip_rcv+0xaa/0xd0 [ 60.004128][ C1] ? ip_rcv+0x0/0xd0 [ 60.008041][ C1] __netif_receive_skb_one_core+0x114/0x180 [ 60.013945][ C1] ? __netif_receive_skb_one_core+0x0/0x180 [ 60.019845][ C1] ? do_raw_spin_lock+0x120/0x2a0 [ 60.024874][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 60.029729][ C1] ? trace_hardirqs_on+0x2d/0x180 [ 60.034759][ C1] __netif_receive_skb+0x1f/0x1c0 [ 60.039794][ C1] process_backlog+0x3e0/0x810 [ 60.044578][ C1] __napi_poll+0xb8/0x770 [ 60.048917][ C1] net_rx_action+0x9fc/0xde0 [ 60.053516][ C1] ? net_rx_action+0x0/0xde0 [ 60.058121][ C1] ? sched_clock_cpu+0x0/0x2b0 [ 60.062892][ C1] ? net_tx_action+0x89e/0xe40 [ 60.067663][ C1] __do_softirq+0x1f7/0xad8 [ 60.072177][ C1] __irq_exit_rcu+0x123/0x180 [ 60.076859][ C1] irq_exit_rcu+0x5/0x20 [ 60.081108][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 60.086756][ C1] [ 60.089686][ C1] [ 60.092627][ C1] asm_sysvec_x86_platform_ipi-0xa/0x20 [ 60.098272][ C1] RIP: 0010:unwind_next_frame+0xce8/0x1cc0 [ 60.104089][ C1] Code: 49 8d 7d 58 49 c7 45 50 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e3 0d 00 00 4c 89 e2 <49> c7 45 58 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 [ 60.123699][ C1] RSP: 0018:ffffc900050cf360 EFLAGS: 00000246 [ 60.129766][ C1] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff8e4d6611 [ 60.137739][ C1] RDX: ffffc900050cf405 RSI: 1ffff92000a19e83 RDI: ffffc900050cf428 [ 60.145711][ C1] RBP: ffffc900050cf418 R08: ffffffff8e4d660c R09: ffffc900050cf404 [ 60.153685][ C1] R10: fffff52000a19e85 R11: ffffc900050cf7a0 R12: ffffc900050cf405 [ 60.161654][ C1] R13: ffffc900050cf3d0 R14: ffffc900050cf7a8 R15: ffffffff8e4d6610 [ 60.169635][ C1] ? slab_free_freelist_hook+0x8b/0x1c0 [ 60.175190][ C1] ? stack_trace_consume_entry+0x0/0x160 [ 60.180843][ C1] arch_stack_walk+0x7d/0xe0 [ 60.185439][ C1] ? kmem_cache_free+0xea/0x5b0 [ 60.190298][ C1] ? kmem_cache_free+0xea/0x5b0 [ 60.195156][ C1] stack_trace_save+0x8c/0xc0 [ 60.199841][ C1] ? stack_trace_save+0x0/0xc0 [ 60.204615][ C1] ? kasan_save_free_info+0x2a/0x40 [ 60.209816][ C1] ? ____kasan_slab_free+0x160/0x1c0 [ 60.215108][ C1] ? slab_free_freelist_hook+0x8b/0x1c0 [ 60.220658][ C1] ? __kmem_cache_free+0xab/0x3b0 [ 60.225707][ C1] ? skb_free_head+0xac/0x110 [ 60.230388][ C1] ? skb_release_data+0x5e5/0x7f0 [ 60.235418][ C1] ? kfree_skb_reason+0x186/0x4b0 [ 60.240446][ C1] ? dccp_qpolicy_top-0xd/0x90 [ 60.245220][ C1] kasan_save_stack+0x1e/0x40 [ 60.249903][ C1] ? kasan_save_stack+0x1e/0x40 [ 60.254761][ C1] ? __kasan_unpoison_range-0xf/0x10 [ 60.260150][ C1] ? kasan_save_free_info+0x2a/0x40 [ 60.265355][ C1] ? ____kasan_slab_free+0x160/0x1c0 [ 60.270651][ C1] ? slab_free_freelist_hook+0x8b/0x1c0 [ 60.276205][ C1] ? do_syscall_64+0x35/0xb0 [ 60.280806][ C1] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.286883][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 60.292355][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 60.297823][ C1] ? lock_acquire+0x4fc/0x630 [ 60.302499][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 60.307968][ C1] ? lock_release+0x5cb/0x810 [ 60.312646][ C1] ? kmem_cache_alloc_node+0x49/0x400 [ 60.318025][ C1] ? debug_check_no_obj_freed+0x20c/0x420 [ 60.323750][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 60.329246][ C1] ? lock_acquire+0x4fc/0x630 [ 60.333925][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 60.339396][ C1] ? lock_release+0x5cb/0x810 [ 60.344075][ C1] ? debug_check_no_obj_freed+0x20c/0x420 [ 60.349802][ C1] ? lock_release+0x0/0x810 [ 60.354318][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 60.359258][ C1] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 60.365082][ C1] ? debug_check_no_obj_freed+0x20c/0x420 [ 60.370831][ C1] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 60.376642][ C1] ? trace_hardirqs_on+0x2d/0x180 [ 60.381667][ C1] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 60.387476][ C1] ? debug_check_no_obj_freed+0x20c/0x420 [ 60.393202][ C1] __kasan_unpoison_range-0xf/0x10 [ 60.398329][ C1] kasan_save_free_info+0x2a/0x40 [ 60.403357][ C1] ____kasan_slab_free+0x160/0x1c0 [ 60.408479][ C1] slab_free_freelist_hook+0x8b/0x1c0 [ 60.413865][ C1] ? kfree_skbmem+0xef/0x1b0 [ 60.418464][ C1] ? dccp_qpolicy_top-0xd/0x90 [ 60.423238][ C1] kmem_cache_free+0xea/0x5b0 [ 60.427927][ C1] ? dccp_qpolicy_top-0xd/0x90 [ 60.432748][ C1] kfree_skbmem+0xef/0x1b0 [ 60.437180][ C1] kfree_skb_reason+0x193/0x4b0 [ 60.442047][ C1] dccp_qpolicy_top-0xd/0x90 [ 60.446650][ C1] dccp_write_xmit+0x182/0x1d0 [ 60.451421][ C1] ? trace_hardirqs_on+0x2d/0x180 [ 60.456463][ C1] dccp_sendmsg+0xaea/0xd20 [ 60.460979][ C1] ? dccp_sendmsg+0x0/0xd20 [ 60.465489][ C1] ? aa_sk_perm+0x0/0xaa0 [ 60.469824][ C1] ? __import_iovec+0x1f7/0x610 [ 60.474676][ C1] inet_sendmsg+0x99/0xe0 [ 60.479008][ C1] ? inet_sendmsg+0x0/0xe0 [ 60.483429][ C1] sock_sendmsg+0xcf/0x120 [ 60.487859][ C1] ____sys_sendmsg+0x334/0x8c0 [ 60.492715][ C1] ? copy_msghdr_from_user+0xfc/0x150 [ 60.498102][ C1] ? ____sys_sendmsg+0x0/0x8c0 [ 60.502878][ C1] ? __handle_mm_fault+0x0/0x3dc0 [ 60.507911][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 60.513383][ C1] ? lock_release+0x5cb/0x810 [ 60.518060][ C1] ___sys_sendmsg+0x110/0x1b0 [ 60.522750][ C1] ? ___sys_sendmsg+0x0/0x1b0 [ 60.527442][ C1] ? do_user_addr_fault+0x4e0/0x1210 [ 60.532740][ C1] ? exc_page_fault+0xbc/0x170 [ 60.537518][ C1] ? trace_hardirqs_on+0x2d/0x180 [ 60.542542][ C1] ? exc_page_fault+0xbc/0x170 [ 60.547319][ C1] ? asm_exc_machine_check-0xe/0x40 [ 60.552547][ C1] __sys_sendmmsg+0x18b/0x460 [ 60.557245][ C1] ? __sys_sendmmsg+0x0/0x460 [ 60.561935][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 60.567406][ C1] ? lock_release+0x5cb/0x810 [ 60.572085][ C1] ? __ct_user_exit+0xff/0x150 [ 60.576862][ C1] ? lock_release+0x0/0x810 [ 60.581451][ C1] ? lock_release+0x0/0x810 [ 60.585953][ C1] ? __up_read+0x0/0x720 [ 60.590214][ C1] ? vtime_user_exit+0x218/0x6c0 [ 60.595165][ C1] __x64_sys_sendmmsg+0x99/0x100 [ 60.600113][ C1] ? syscall_enter_from_user_mode+0x22/0xb0 [ 60.606021][ C1] do_syscall_64+0x35/0xb0 [ 60.610447][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.616351][ C1] RIP: 0033:0x7faca2b3fe19 [ 60.620811][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 executing program [ 60.640420][ C1] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 60.648832][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 [ 60.656800][ C1] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 [ 60.664770][ C1] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 60.672740][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 [ 60.680713][ C1] R13: 00000000000f4240 R14: 000000000000e9ce R15: 00007fffdb441b14 [ 60.688778][ C1] executing program executing program executing program executing program executing program [ 60.707766][ C0] Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1534/dccp_feat_activate_values() executing program executing program executing program executing program executing program [ 60.815775][ C0] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 60.829695][ C0] CPU: 0 PID: 4032 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 60.839570][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 60.849612][ C0] Call Trace: [ 60.852879][ C0] [ 60.855712][ C0] dump_stack_lvl+0xcd/0x134 [ 60.860300][ C0] tfrc_rx_hist_sample_rtt+0x4ce/0x4e0 [ 60.865755][ C0] ccid3_hc_rx_packet_recv+0x603/0xf50 [ 60.871203][ C0] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 60.876650][ C0] dccp_deliver_input_to_ccids+0xe1/0x260 [ 60.882373][ C0] dccp_rcv_established+0x107/0x160 [ 60.887629][ C0] dccp_v4_do_rcv+0x164/0x1a0 [ 60.892313][ C0] __sk_receive_skb+0x294/0x820 [ 60.897155][ C0] dccp_v4_rcv+0xfbb/0x18d0 [ 60.901648][ C0] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 60.907022][ C0] ip_local_deliver_finish+0x2e8/0x4c0 [ 60.912496][ C0] ip_local_deliver+0x1aa/0x200 [ 60.917372][ C0] ip_rcv_finish+0x1cb/0x2f0 [ 60.921981][ C0] ip_rcv+0xaa/0xd0 [ 60.925809][ C0] ? ip_rcv+0x0/0xd0 [ 60.929721][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 60.935630][ C0] ? __netif_receive_skb_one_core+0x0/0x180 [ 60.941531][ C0] ? do_raw_spin_lock+0x120/0x2a0 [ 60.946560][ C0] ? do_raw_spin_lock+0x0/0x2a0 [ 60.951417][ C0] ? trace_hardirqs_on+0x2d/0x180 [ 60.956445][ C0] __netif_receive_skb+0x1f/0x1c0 [ 60.961481][ C0] process_backlog+0x3e0/0x810 [ 60.966255][ C0] __napi_poll+0xb8/0x770 [ 60.970594][ C0] net_rx_action+0x9fc/0xde0 [ 60.975198][ C0] ? net_rx_action+0x0/0xde0 [ 60.979795][ C0] ? sched_clock_cpu+0x0/0x2b0 [ 60.984567][ C0] ? net_tx_action+0x89e/0xe40 [ 60.989343][ C0] __do_softirq+0x1f7/0xad8 [ 60.993861][ C0] do_softirq.part.0+0xde/0x130 [ 60.998721][ C0] [ 61.001643][ C0] [ 61.004570][ C0] ? ip_finish_output2+0x7a2/0x2170 [ 61.009771][ C0] __local_bh_enable_ip+0x102/0x120 [ 61.014999][ C0] ip_finish_output2+0x7d0/0x2170 [ 61.020832][ C0] ? ip_finish_output2+0x0/0x2170 [ 61.025881][ C0] ? ip_skb_dst_mtu+0x0/0xcc0 [ 61.030572][ C0] ? lock_acquire+0x4fc/0x630 [ 61.035260][ C0] __ip_finish_output+0x396/0x650 [ 61.040289][ C0] ip_finish_output+0x2d/0x280 [ 61.045058][ C0] ip_output+0x19f/0x310 [ 61.049304][ C0] __ip_queue_xmit+0x8de/0x1be0 [ 61.054179][ C0] dccp_transmit_skb+0x7e9/0x1420 [ 61.059218][ C0] dccp_send_sync+0x1c0/0x260 [ 61.063911][ C0] __dccp_rcv_established.constprop.0+0x265/0x3b0 [ 61.070344][ C0] dccp_rcv_established+0x112/0x160 [ 61.075555][ C0] dccp_v4_do_rcv+0x164/0x1a0 [ 61.080245][ C0] __release_sock+0x12f/0x3a0 [ 61.084928][ C0] release_sock+0x54/0x1b0 [ 61.089609][ C0] dccp_sendmsg+0x6cc/0xd20 [ 61.094127][ C0] ? dccp_sendmsg+0x0/0xd20 [ 61.098640][ C0] ? aa_sk_perm+0x0/0xaa0 [ 61.102973][ C0] ? __import_iovec+0x1f7/0x610 [ 61.107826][ C0] inet_sendmsg+0x99/0xe0 [ 61.112169][ C0] ? inet_sendmsg+0x0/0xe0 [ 61.116592][ C0] sock_sendmsg+0xcf/0x120 [ 61.121103][ C0] ____sys_sendmsg+0x334/0x8c0 [ 61.125875][ C0] ? copy_msghdr_from_user+0xfc/0x150 [ 61.131261][ C0] ? ____sys_sendmsg+0x0/0x8c0 [ 61.136037][ C0] ? __handle_mm_fault+0x0/0x3dc0 [ 61.141071][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.146544][ C0] ? lock_release+0x5cb/0x810 [ 61.151227][ C0] ___sys_sendmsg+0x110/0x1b0 [ 61.155921][ C0] ? ___sys_sendmsg+0x0/0x1b0 [ 61.160612][ C0] ? do_user_addr_fault+0x4e0/0x1210 [ 61.165910][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.171383][ C0] ? lock_acquire+0x4fc/0x630 [ 61.176065][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.181536][ C0] ? lock_release+0x5cb/0x810 [ 61.186220][ C0] ? __might_fault+0xd1/0x170 [ 61.190905][ C0] ? lock_release+0x0/0x810 [ 61.195495][ C0] ? asm_exc_machine_check-0xe/0x40 [ 61.200709][ C0] __sys_sendmmsg+0x18b/0x460 [ 61.205403][ C0] ? __sys_sendmmsg+0x0/0x460 [ 61.210096][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.215608][ C0] ? lock_release+0x5cb/0x810 [ 61.220288][ C0] ? __ct_user_exit+0xff/0x150 [ 61.225071][ C0] ? lock_release+0x0/0x810 [ 61.229576][ C0] ? lock_release+0x0/0x810 [ 61.234082][ C0] ? __up_read+0x0/0x720 [ 61.238337][ C0] ? vtime_user_exit+0x218/0x6c0 [ 61.243287][ C0] __x64_sys_sendmmsg+0x99/0x100 [ 61.248239][ C0] ? syscall_enter_from_user_mode+0x22/0xb0 [ 61.254139][ C0] do_syscall_64+0x35/0xb0 [ 61.258568][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.264474][ C0] RIP: 0033:0x7faca2b3fe19 [ 61.268897][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 61.288769][ C0] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 61.297190][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 [ 61.305173][ C0] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 executing program executing program executing program [ 61.313143][ C0] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 61.321112][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 [ 61.329085][ C0] R13: 00000000000f4240 R14: 000000000000ed6a R15: 00007fffdb441b14 [ 61.337065][ C0] executing program executing program executing program executing program executing program executing program executing program executing program [ 61.462988][ C1] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt() [ 61.476921][ C1] CPU: 1 PID: 4043 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 61.486797][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 61.496847][ C1] Call Trace: [ 61.500111][ C1] [ 61.502939][ C1] dump_stack_lvl+0xcd/0x134 [ 61.507529][ C1] tfrc_rx_hist_sample_rtt+0x4ce/0x4e0 [ 61.513014][ C1] ccid3_hc_rx_packet_recv+0x603/0xf50 [ 61.518476][ C1] ? ccid3_hc_rx_packet_recv+0x0/0xf50 [ 61.523931][ C1] dccp_deliver_input_to_ccids+0xe1/0x260 [ 61.529644][ C1] dccp_rcv_established+0x107/0x160 [ 61.534843][ C1] dccp_v4_do_rcv+0x164/0x1a0 [ 61.539506][ C1] __sk_receive_skb+0x294/0x820 [ 61.544348][ C1] dccp_v4_rcv+0xfbb/0x18d0 [ 61.548841][ C1] ip_protocol_deliver_rcu+0x9b/0x7c0 [ 61.554212][ C1] ip_local_deliver_finish+0x2e8/0x4c0 [ 61.559664][ C1] ip_local_deliver+0x1aa/0x200 [ 61.564505][ C1] ip_rcv_finish+0x1cb/0x2f0 [ 61.569088][ C1] ip_rcv+0xaa/0xd0 [ 61.572891][ C1] ? ip_rcv+0x0/0xd0 [ 61.576777][ C1] __netif_receive_skb_one_core+0x114/0x180 [ 61.582668][ C1] ? __netif_receive_skb_one_core+0x0/0x180 [ 61.588575][ C1] ? do_raw_spin_lock+0x120/0x2a0 [ 61.593640][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 61.598495][ C1] ? trace_hardirqs_on+0x2d/0x180 [ 61.603528][ C1] __netif_receive_skb+0x1f/0x1c0 [ 61.608564][ C1] process_backlog+0x3e0/0x810 [ 61.613338][ C1] __napi_poll+0xb8/0x770 [ 61.617677][ C1] net_rx_action+0x9fc/0xde0 [ 61.622278][ C1] ? net_rx_action+0x0/0xde0 [ 61.626870][ C1] ? sched_clock_cpu+0x0/0x2b0 [ 61.632271][ C1] ? net_tx_action+0x89e/0xe40 [ 61.637055][ C1] __do_softirq+0x1f7/0xad8 [ 61.641580][ C1] __irq_exit_rcu+0x123/0x180 [ 61.646265][ C1] irq_exit_rcu+0x5/0x20 [ 61.650513][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 61.656163][ C1] [ 61.659101][ C1] [ 61.662028][ C1] asm_sysvec_x86_platform_ipi-0xa/0x20 [ 61.667588][ C1] RIP: 0010:unwind_next_frame+0x8c5/0x1cc0 [ 61.673407][ C1] Code: ff 80 3d 28 87 76 0c 00 0f 85 ee fa ff ff e9 ad 3f 15 08 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 08 48 c1 ea 03 80 3c 02 00 <0f> 85 73 10 00 00 4c 89 c0 4d 8b 75 38 48 ba 00 00 00 00 00 fc ff [ 61.693106][ C1] RSP: 0018:ffffc90004fff288 EFLAGS: 00000246 [ 61.699171][ C1] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff8eb8f003 [ 61.707236][ C1] RDX: 1ffff920009ffe66 RSI: 0000000000000001 RDI: 0000000000000001 [ 61.715208][ C1] RBP: ffffc90004fff340 R08: ffffffff8eb8effe R09: ffffc90004fff32c [ 61.723180][ C1] R10: fffff520009ffe6a R11: 000000000008c001 R12: ffffc90004fff32d [ 61.731176][ C1] R13: ffffc90004fff2f8 R14: ffffffff87507a6e R15: ffffffff8eb8f002 [ 61.739157][ C1] ? sock_sendmsg+0xce/0x120 [ 61.743788][ C1] ? unwind_next_frame+0x2a3/0x1cc0 [ 61.749000][ C1] ? sock_sendmsg+0xcf/0x120 [ 61.753598][ C1] ? kernel_text_address+0xd/0x80 [ 61.758642][ C1] ? stack_trace_consume_entry+0x0/0x160 [ 61.764289][ C1] arch_stack_walk+0x7d/0xe0 [ 61.768885][ C1] ? sock_sendmsg+0xcf/0x120 [ 61.773482][ C1] ? alloc_skb_with_frags+0x93/0x6c0 [ 61.778787][ C1] stack_trace_save+0x8c/0xc0 [ 61.783479][ C1] ? stack_trace_save+0x0/0xc0 [ 61.788259][ C1] ? kasan_set_track-0xf/0x30 [ 61.792943][ C1] kasan_save_stack+0x1e/0x40 [ 61.797643][ C1] ? kasan_save_stack+0x1e/0x40 [ 61.803043][ C1] ? __kasan_unpoison_range-0xf/0x10 [ 61.808362][ C1] ? ____kasan_slab_free-0xf/0x1c0 [ 61.813502][ C1] ? __kmalloc_node_track_caller+0x55/0xc0 [ 61.819330][ C1] ? __alloc_skb+0xd9/0x2f0 [ 61.823860][ C1] ? alloc_skb_with_frags+0x93/0x6c0 [ 61.829168][ C1] ? sock_alloc_send_pskb+0x7a3/0x930 [ 61.834588][ C1] ? dccp_sendmsg+0x2e5/0xd20 [ 61.839278][ C1] ? inet_sendmsg+0x99/0xe0 [ 61.843786][ C1] ? sock_sendmsg+0xcf/0x120 [ 61.848379][ C1] ? __x64_sys_sendmmsg+0x99/0x100 [ 61.853534][ C1] ? do_syscall_64+0x35/0xb0 [ 61.858147][ C1] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.864238][ C1] ? kasan_save_free_info+0x2a/0x40 [ 61.869438][ C1] ? ____kasan_slab_free+0x160/0x1c0 [ 61.874735][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.880210][ C1] ? lock_acquire+0x4fc/0x630 [ 61.884892][ C1] ? ____kasan_slab_free+0x160/0x1c0 [ 61.890189][ C1] ? lock_acquire+0x0/0x630 [ 61.894704][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.900179][ C1] ? lock_release+0x5cb/0x810 [ 61.904894][ C1] ? inet_sendmsg+0x99/0xe0 [ 61.909410][ C1] ? __kmem_cache_alloc_node+0x4a/0x3e0 [ 61.914993][ C1] ? lock_release+0x0/0x810 [ 61.919526][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.925011][ C1] ? lock_release+0x5cb/0x810 [ 61.929694][ C1] ? lock_release+0x5cb/0x810 [ 61.934373][ C1] ? kmem_cache_alloc_node+0x49/0x400 [ 61.939759][ C1] ? __kmem_cache_alloc_node+0x1df/0x3e0 [ 61.945402][ C1] __kasan_unpoison_range-0xf/0x10 [ 61.950525][ C1] ____kasan_slab_free-0xf/0x1c0 [ 61.955474][ C1] __kmalloc_node_track_caller+0x55/0xc0 [ 61.961130][ C1] __alloc_skb+0xd9/0x2f0 [ 61.965479][ C1] alloc_skb_with_frags+0x93/0x6c0 [ 61.970604][ C1] ? aa_label_sk_perm+0x156/0x530 [ 61.975642][ C1] sock_alloc_send_pskb+0x7a3/0x930 [ 61.980949][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.986450][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 61.991932][ C1] ? lock_acquire+0x4fc/0x630 [ 61.996620][ C1] ? sock_alloc_send_pskb+0x0/0x930 [ 62.001824][ C1] ? lock_release+0x0/0x810 [ 62.006330][ C1] ? do_raw_spin_lock+0x0/0x2a0 [ 62.011190][ C1] ? __local_bh_enable_ip+0xa0/0x120 [ 62.016483][ C1] dccp_sendmsg+0x2e5/0xd20 [ 62.021089][ C1] ? aa_sk_perm+0x30f/0xaa0 [ 62.025693][ C1] ? dccp_sendmsg+0x0/0xd20 [ 62.030212][ C1] ? aa_sk_perm+0x0/0xaa0 [ 62.034562][ C1] ? __import_iovec+0x1f7/0x610 [ 62.039422][ C1] inet_sendmsg+0x99/0xe0 [ 62.043770][ C1] ? inet_sendmsg+0x0/0xe0 [ 62.048201][ C1] sock_sendmsg+0xcf/0x120 [ 62.052723][ C1] ____sys_sendmsg+0x334/0x8c0 [ 62.057506][ C1] ? copy_msghdr_from_user+0xfc/0x150 [ 62.062901][ C1] ? ____sys_sendmsg+0x0/0x8c0 [ 62.067677][ C1] ? __handle_mm_fault+0x0/0x3dc0 [ 62.072713][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 62.078186][ C1] ? lock_release+0x5cb/0x810 [ 62.082871][ C1] ___sys_sendmsg+0x110/0x1b0 [ 62.087561][ C1] ? ___sys_sendmsg+0x0/0x1b0 [ 62.092251][ C1] ? do_user_addr_fault+0x4e0/0x1210 [ 62.097570][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 62.103051][ C1] ? lock_acquire+0x4fc/0x630 [ 62.107739][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 62.113494][ C1] ? lock_release+0x5cb/0x810 [ 62.118186][ C1] ? __might_fault+0xd1/0x170 [ 62.122871][ C1] ? lock_release+0x0/0x810 [ 62.127383][ C1] ? asm_exc_machine_check-0xe/0x40 [ 62.133038][ C1] __sys_sendmmsg+0x18b/0x460 [ 62.137739][ C1] ? __sys_sendmmsg+0x0/0x460 [ 62.142449][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 62.147926][ C1] ? lock_release+0x5cb/0x810 [ 62.152609][ C1] ? __ct_user_exit+0xff/0x150 [ 62.157381][ C1] ? lock_release+0x0/0x810 [ 62.161895][ C1] ? lock_release+0x0/0x810 [ 62.166401][ C1] ? __up_read+0x0/0x720 [ 62.170665][ C1] ? vtime_user_exit+0x218/0x6c0 [ 62.175624][ C1] __x64_sys_sendmmsg+0x99/0x100 [ 62.180661][ C1] ? syscall_enter_from_user_mode+0x22/0xb0 [ 62.186559][ C1] do_syscall_64+0x35/0xb0 [ 62.190987][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.196894][ C1] RIP: 0033:0x7faca2b3fe19 [ 62.201308][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 62.221006][ C1] RSP: 002b:00007fffdb441b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 62.229605][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007faca2b3fe19 [ 62.237579][ C1] RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 [ 62.245550][ C1] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 62.253521][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdb441b20 executing program executing program [ 62.261493][ C1] R13: 00000000000f4240 R14: 000000000000efef R15: 00007fffdb441b14 [ 62.269472][ C1] [ 62.289405][ T4044] net_ratelimit: 173 callbacks suppressed [ 62.289419][ T4044] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program executing program [ 62.312848][ T4045] dccp_xmit_packet: Payload too large (65475) for featneg. [ 62.330509][ T4046] dccp_xmit_packet: Payload too large (65475) for featneg. [ 62.350862][ T4047] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program executing program [ 62.369035][ T4048] dccp_xmit_packet: Payload too large (65475) for featneg. [ 62.386624][ T4049] dccp_xmit_packet: Payload too large (65475) for featneg. [ 62.403552][ T4050] dccp_xmit_packet: Payload too large (65475) for featneg. executing program executing program [ 62.423906][ T4051] dccp_xmit_packet: Payload too large (65475) for featneg. [ 62.452673][ T4053] dccp_xmit_packet: Payload too large (65475) for featneg. [ 62.461681][ C0] ccid3_first_li: No RTT estimate available, using fallback RTT [ 62.469369][ C0] BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:691/ccid3_first_li() [ 62.478884][ C0] CPU: 0 PID: 4053 Comm: syz-executor226 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 62.488863][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 62.498916][ C0] Call Trace: [ 62.502184][ C0] [ 62.505015][ C0] dump_stack_lvl+0xcd/0x134 [ 62.509623][ C0] ccid3_first_li.cold+0x67/0x17a [ 62.514679][ C0] tfrc_lh_interval_add+0x640/0x8e0 [ 62.519876][ C0] ? ccid3_first_li+0x0/0x400