[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts. syzkaller login: [ 33.913038] IPVS: ftp: loaded support on port[0] = 21 [ 33.985704] chnl_net:caif_netlink_parms(): no params data found [ 34.058859] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.065486] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.073497] device bridge_slave_0 entered promiscuous mode [ 34.080643] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.087993] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.096173] device bridge_slave_1 entered promiscuous mode [ 34.114309] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 34.123674] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 34.142944] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 34.150259] team0: Port device team_slave_0 added [ 34.156064] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 34.163675] team0: Port device team_slave_1 added [ 34.179206] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 34.185619] 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. [ 34.211667] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 34.223305] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 34.229707] 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. [ 34.254970] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 34.268651] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 34.276409] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 34.295543] device hsr_slave_0 entered promiscuous mode [ 34.302193] device hsr_slave_1 entered promiscuous mode [ 34.308381] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 34.315705] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 34.384293] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.391151] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.398160] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.404709] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.435117] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 34.441465] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.450112] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 34.459208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.468285] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.475843] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.484043] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 34.495328] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 34.501589] 8021q: adding VLAN 0 to HW filter on device team0 [ 34.510465] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 34.519366] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.525754] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.536745] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 34.544828] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.551156] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.566602] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 34.574322] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 34.589227] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 34.599160] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 34.610291] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 34.617875] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 34.625850] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 34.633805] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 34.641444] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 34.653293] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 34.661301] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 34.667986] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 34.678168] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 34.713509] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 34.724142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 34.758075] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 34.765640] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 34.773800] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 34.783843] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 34.791963] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 34.798848] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 34.808177] device veth0_vlan entered promiscuous mode [ 34.817325] device veth1_vlan entered promiscuous mode [ 34.823543] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 34.832448] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 34.845217] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 34.854526] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 34.862866] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 34.870077] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 34.880038] device veth0_macvtap entered promiscuous mode [ 34.886738] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 34.895957] device veth1_macvtap entered promiscuous mode [ 34.905103] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 34.914340] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 34.925132] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 34.932603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 34.940937] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 34.951603] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 34.962784] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program [ 35.105582] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 35.116718] CPU: 0 PID: 8341 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 35.124588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.133924] Call Trace: [ 35.136498] dump_stack+0x1fc/0x2ef [ 35.140132] ccid3_update_send_interval.cold+0x87/0x93 [ 35.145394] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 35.150153] ? ccid3_update_send_interval+0x120/0x120 [ 35.155423] dccp_xmit_packet+0x27e/0x760 [ 35.159554] dccp_write_xmit+0x16d/0x1d0 [ 35.163619] dccp_sendmsg+0x8de/0xc90 [ 35.167404] ? aa_sk_perm+0x534/0x930 [ 35.171185] ? dccp_ioctl+0x160/0x160 [ 35.175088] ? aa_af_perm+0x230/0x230 [ 35.178875] ? kernel_recvmsg+0x220/0x220 [ 35.183007] inet_sendmsg+0x132/0x5a0 [ 35.186797] ? security_socket_sendmsg+0x83/0xb0 [ 35.191539] ? inet_recvmsg+0x5c0/0x5c0 [ 35.195497] sock_sendmsg+0xc3/0x120 [ 35.199193] ___sys_sendmsg+0x3b3/0x8e0 [ 35.203155] ? copy_msghdr_from_user+0x440/0x440 [ 35.208534] ? __fget+0x32f/0x510 [ 35.211977] ? lock_downgrade+0x720/0x720 [ 35.216111] ? check_preemption_disabled+0x41/0x280 [ 35.221111] ? check_preemption_disabled+0x41/0x280 [ 35.226124] ? __fget+0x356/0x510 [ 35.229565] ? do_dup2+0x450/0x450 [ 35.233089] ? lock_downgrade+0x720/0x720 [ 35.237217] ? lock_acquire+0x170/0x3c0 [ 35.241196] ? __fdget+0x1d0/0x230 [ 35.244721] __sys_sendmmsg+0x195/0x470 [ 35.248682] ? __ia32_sys_sendmsg+0x220/0x220 [ 35.253164] ? __sys_connect+0x140/0x2c0 [ 35.257209] ? __ia32_sys_accept+0xb0/0xb0 [ 35.261433] ? __se_sys_futex+0x28f/0x3b0 [ 35.265562] ? __se_sys_futex+0x298/0x3b0 [ 35.269693] ? do_futex+0x1880/0x1880 [ 35.273522] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.278879] __x64_sys_sendmmsg+0x99/0x100 [ 35.283106] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.287678] do_syscall_64+0xf9/0x620 [ 35.291465] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.296642] RIP: 0033:0x7fbe2b3338e9 [ 35.300336] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 35.319322] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 35.327014] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 35.334267] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 35.341617] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 35.348869] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 35.356120] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 35.458217] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 35.469517] CPU: 1 PID: 8347 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 35.477489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.486825] Call Trace: [ 35.489403] dump_stack+0x1fc/0x2ef [ 35.493016] ccid3_update_send_interval.cold+0x87/0x93 [ 35.498276] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 35.503023] ? ccid3_update_send_interval+0x120/0x120 [ 35.508206] dccp_xmit_packet+0x27e/0x760 [ 35.512350] dccp_write_xmit+0x16d/0x1d0 [ 35.516399] dccp_sendmsg+0x8de/0xc90 [ 35.520208] ? aa_sk_perm+0x534/0x930 [ 35.524006] ? dccp_ioctl+0x160/0x160 [ 35.527791] ? aa_af_perm+0x230/0x230 [ 35.531661] ? kernel_recvmsg+0x220/0x220 [ 35.535796] inet_sendmsg+0x132/0x5a0 [ 35.539586] ? security_socket_sendmsg+0x83/0xb0 [ 35.544322] ? inet_recvmsg+0x5c0/0x5c0 [ 35.548280] sock_sendmsg+0xc3/0x120 [ 35.552003] ___sys_sendmsg+0x3b3/0x8e0 [ 35.555971] ? copy_msghdr_from_user+0x440/0x440 [ 35.560729] ? __fget+0x32f/0x510 [ 35.564189] ? lock_downgrade+0x720/0x720 [ 35.568357] ? check_preemption_disabled+0x41/0x280 [ 35.573361] ? check_preemption_disabled+0x41/0x280 [ 35.578370] ? __fget+0x356/0x510 [ 35.581817] ? do_dup2+0x450/0x450 [ 35.585347] ? lock_downgrade+0x720/0x720 [ 35.589476] ? lock_acquire+0x170/0x3c0 [ 35.593436] ? __fdget+0x1d0/0x230 [ 35.596964] __sys_sendmmsg+0x195/0x470 [ 35.600935] ? __ia32_sys_sendmsg+0x220/0x220 [ 35.605433] ? __sys_connect+0x140/0x2c0 [ 35.609481] ? __ia32_sys_accept+0xb0/0xb0 [ 35.613701] ? __se_sys_futex+0x28f/0x3b0 [ 35.617847] ? __se_sys_futex+0x298/0x3b0 [ 35.621980] ? do_futex+0x1880/0x1880 [ 35.625765] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.631129] __x64_sys_sendmmsg+0x99/0x100 [ 35.635432] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.640001] do_syscall_64+0xf9/0x620 [ 35.643790] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.648973] RIP: 0033:0x7fbe2b3338e9 [ 35.652780] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 35.671767] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 35.679456] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 35.686720] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 35.694057] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 35.701507] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 35.708775] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 35.767471] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 35.778445] CPU: 0 PID: 8350 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 35.786360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.795786] Call Trace: [ 35.798367] dump_stack+0x1fc/0x2ef [ 35.801984] ccid3_update_send_interval.cold+0x87/0x93 [ 35.807247] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 35.812065] ? ccid3_update_send_interval+0x120/0x120 [ 35.817249] dccp_xmit_packet+0x27e/0x760 [ 35.821382] dccp_write_xmit+0x16d/0x1d0 [ 35.825426] dccp_sendmsg+0x8de/0xc90 [ 35.829213] ? aa_sk_perm+0x534/0x930 [ 35.832997] ? dccp_ioctl+0x160/0x160 [ 35.836782] ? aa_af_perm+0x230/0x230 [ 35.840569] ? kernel_recvmsg+0x220/0x220 [ 35.844703] inet_sendmsg+0x132/0x5a0 [ 35.848490] ? security_socket_sendmsg+0x83/0xb0 [ 35.853229] ? inet_recvmsg+0x5c0/0x5c0 [ 35.857185] sock_sendmsg+0xc3/0x120 [ 35.860888] ___sys_sendmsg+0x3b3/0x8e0 [ 35.864847] ? copy_msghdr_from_user+0x440/0x440 [ 35.869587] ? __fget+0x32f/0x510 [ 35.873204] ? lock_downgrade+0x720/0x720 [ 35.877346] ? check_preemption_disabled+0x41/0x280 [ 35.882358] ? check_preemption_disabled+0x41/0x280 [ 35.887370] ? __fget+0x356/0x510 [ 35.890812] ? do_dup2+0x450/0x450 [ 35.894426] ? lock_downgrade+0x720/0x720 [ 35.898559] ? lock_acquire+0x170/0x3c0 [ 35.902619] ? __fdget+0x1d0/0x230 [ 35.906163] __sys_sendmmsg+0x195/0x470 [ 35.910142] ? __ia32_sys_sendmsg+0x220/0x220 [ 35.914736] ? __sys_connect+0x140/0x2c0 [ 35.918778] ? __ia32_sys_accept+0xb0/0xb0 [ 35.923010] ? __se_sys_futex+0x28f/0x3b0 [ 35.927142] ? __se_sys_futex+0x298/0x3b0 [ 35.931274] ? do_futex+0x1880/0x1880 [ 35.935072] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.940426] __x64_sys_sendmmsg+0x99/0x100 [ 35.944682] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.949244] do_syscall_64+0xf9/0x620 [ 35.953027] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.958225] RIP: 0033:0x7fbe2b3338e9 [ 35.961925] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 35.980811] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 35.988499] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 35.995838] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 36.003177] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 36.010435] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 36.017692] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program executing program executing program [ 36.209527] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 36.220170] CPU: 0 PID: 8362 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 36.228037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.237387] Call Trace: [ 36.239965] dump_stack+0x1fc/0x2ef [ 36.243581] ccid3_update_send_interval.cold+0x87/0x93 [ 36.248841] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 36.253588] ? ccid3_update_send_interval+0x120/0x120 [ 36.258774] dccp_xmit_packet+0x27e/0x760 [ 36.262905] dccp_write_xmit+0x16d/0x1d0 [ 36.266948] dccp_sendmsg+0x8de/0xc90 [ 36.270738] ? aa_sk_perm+0x534/0x930 [ 36.274522] ? dccp_ioctl+0x160/0x160 [ 36.278307] ? aa_af_perm+0x230/0x230 [ 36.282098] ? kernel_recvmsg+0x220/0x220 [ 36.286237] inet_sendmsg+0x132/0x5a0 [ 36.290459] ? security_socket_sendmsg+0x83/0xb0 [ 36.295211] ? inet_recvmsg+0x5c0/0x5c0 [ 36.299177] sock_sendmsg+0xc3/0x120 [ 36.302879] ___sys_sendmsg+0x3b3/0x8e0 [ 36.306837] ? copy_msghdr_from_user+0x440/0x440 [ 36.311586] ? __fget+0x32f/0x510 [ 36.315030] ? lock_downgrade+0x720/0x720 [ 36.319163] ? check_preemption_disabled+0x41/0x280 [ 36.324181] ? check_preemption_disabled+0x41/0x280 [ 36.329187] ? __fget+0x356/0x510 [ 36.332627] ? do_dup2+0x450/0x450 [ 36.336162] ? lock_downgrade+0x720/0x720 [ 36.340335] ? lock_acquire+0x170/0x3c0 [ 36.344323] ? __fdget+0x1d0/0x230 [ 36.348149] __sys_sendmmsg+0x195/0x470 [ 36.352114] ? __ia32_sys_sendmsg+0x220/0x220 [ 36.356688] ? __sys_connect+0x140/0x2c0 [ 36.360745] ? __ia32_sys_accept+0xb0/0xb0 [ 36.364974] ? __se_sys_futex+0x28f/0x3b0 [ 36.369105] ? __se_sys_futex+0x298/0x3b0 [ 36.373242] ? do_futex+0x1880/0x1880 [ 36.377032] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.382381] __x64_sys_sendmmsg+0x99/0x100 [ 36.386602] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.391170] do_syscall_64+0xf9/0x620 [ 36.394959] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.400130] RIP: 0033:0x7fbe2b3338e9 [ 36.403827] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 36.422713] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 36.430423] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 36.437888] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 36.445147] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 36.452403] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 36.459658] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 36.560591] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 36.571154] CPU: 0 PID: 8368 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 36.579024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.588365] Call Trace: [ 36.591029] dump_stack+0x1fc/0x2ef [ 36.594681] ccid3_update_send_interval.cold+0x87/0x93 [ 36.599942] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 36.604704] ? ccid3_update_send_interval+0x120/0x120 [ 36.610030] dccp_xmit_packet+0x27e/0x760 [ 36.614171] dccp_write_xmit+0x16d/0x1d0 [ 36.618224] dccp_sendmsg+0x8de/0xc90 [ 36.622012] ? aa_sk_perm+0x534/0x930 [ 36.625799] ? dccp_ioctl+0x160/0x160 [ 36.629605] ? aa_af_perm+0x230/0x230 [ 36.633387] ? kernel_recvmsg+0x220/0x220 [ 36.637522] inet_sendmsg+0x132/0x5a0 [ 36.641311] ? security_socket_sendmsg+0x83/0xb0 [ 36.646053] ? inet_recvmsg+0x5c0/0x5c0 [ 36.650100] sock_sendmsg+0xc3/0x120 [ 36.653928] ___sys_sendmsg+0x3b3/0x8e0 [ 36.657974] ? copy_msghdr_from_user+0x440/0x440 [ 36.662805] ? __fget+0x32f/0x510 [ 36.666256] ? lock_downgrade+0x720/0x720 [ 36.670395] ? check_preemption_disabled+0x41/0x280 [ 36.675402] ? check_preemption_disabled+0x41/0x280 [ 36.680410] ? __fget+0x356/0x510 [ 36.683848] ? do_dup2+0x450/0x450 [ 36.687903] ? lock_downgrade+0x720/0x720 [ 36.692031] ? lock_acquire+0x170/0x3c0 [ 36.695991] ? __fdget+0x1d0/0x230 [ 36.699514] __sys_sendmmsg+0x195/0x470 [ 36.703559] ? __ia32_sys_sendmsg+0x220/0x220 [ 36.708044] ? __sys_connect+0x140/0x2c0 [ 36.712108] ? __ia32_sys_accept+0xb0/0xb0 [ 36.716333] ? __se_sys_futex+0x28f/0x3b0 [ 36.720463] ? __se_sys_futex+0x298/0x3b0 [ 36.724593] ? do_futex+0x1880/0x1880 [ 36.728379] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.733727] __x64_sys_sendmmsg+0x99/0x100 [ 36.738059] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.742629] do_syscall_64+0xf9/0x620 [ 36.746416] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.751683] RIP: 0033:0x7fbe2b3338e9 [ 36.755408] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 36.774480] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 36.782179] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 36.789521] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 36.796775] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 36.804025] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 36.811975] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 36.912560] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 36.924278] CPU: 0 PID: 8374 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 36.932298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.941635] Call Trace: [ 36.944213] dump_stack+0x1fc/0x2ef [ 36.947825] ccid3_update_send_interval.cold+0x87/0x93 [ 36.953085] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 36.957819] ? ccid3_update_send_interval+0x120/0x120 [ 36.962989] dccp_xmit_packet+0x27e/0x760 [ 36.967206] dccp_write_xmit+0x16d/0x1d0 [ 36.971250] dccp_sendmsg+0x8de/0xc90 [ 36.975036] ? aa_sk_perm+0x534/0x930 [ 36.978819] ? dccp_ioctl+0x160/0x160 [ 36.982607] ? aa_af_perm+0x230/0x230 [ 36.986392] ? kernel_recvmsg+0x220/0x220 [ 36.990526] inet_sendmsg+0x132/0x5a0 [ 36.994311] ? security_socket_sendmsg+0x83/0xb0 [ 36.999628] ? inet_recvmsg+0x5c0/0x5c0 [ 37.003613] sock_sendmsg+0xc3/0x120 [ 37.007313] ___sys_sendmsg+0x3b3/0x8e0 [ 37.011271] ? copy_msghdr_from_user+0x440/0x440 [ 37.016016] ? __fget+0x32f/0x510 [ 37.019453] ? lock_downgrade+0x720/0x720 [ 37.023584] ? check_preemption_disabled+0x41/0x280 [ 37.028594] ? check_preemption_disabled+0x41/0x280 [ 37.033619] ? __fget+0x356/0x510 [ 37.037082] ? do_dup2+0x450/0x450 [ 37.040612] ? lock_downgrade+0x720/0x720 [ 37.044825] ? lock_acquire+0x170/0x3c0 [ 37.048869] ? __fdget+0x1d0/0x230 [ 37.052480] __sys_sendmmsg+0x195/0x470 [ 37.056437] ? __ia32_sys_sendmsg+0x220/0x220 [ 37.060918] ? __sys_connect+0x140/0x2c0 [ 37.064957] ? __ia32_sys_accept+0xb0/0xb0 [ 37.069173] ? __se_sys_futex+0x28f/0x3b0 [ 37.073410] ? __se_sys_futex+0x298/0x3b0 [ 37.077548] ? do_futex+0x1880/0x1880 [ 37.081334] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.086685] __x64_sys_sendmmsg+0x99/0x100 [ 37.090910] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.095472] do_syscall_64+0xf9/0x620 [ 37.099254] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.104431] RIP: 0033:0x7fbe2b3338e9 [ 37.108129] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 37.127020] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 37.134720] RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 00007fbe2b3338e9 [ 37.141975] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 37.149311] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 37.156561] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 37.163810] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 37.231801] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 37.242872] CPU: 1 PID: 8379 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 37.250741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.261141] Call Trace: [ 37.263825] dump_stack+0x1fc/0x2ef [ 37.267701] ccid3_update_send_interval.cold+0x87/0x93 [ 37.272965] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 37.277771] ? ccid3_update_send_interval+0x120/0x120 [ 37.282947] dccp_xmit_packet+0x27e/0x760 [ 37.287078] dccp_write_xmit+0x16d/0x1d0 [ 37.291131] dccp_sendmsg+0x8de/0xc90 [ 37.294915] ? aa_sk_perm+0x534/0x930 [ 37.298696] ? dccp_ioctl+0x160/0x160 [ 37.302585] ? aa_af_perm+0x230/0x230 [ 37.306379] ? kernel_recvmsg+0x220/0x220 [ 37.310526] inet_sendmsg+0x132/0x5a0 [ 37.314328] ? security_socket_sendmsg+0x83/0xb0 [ 37.319083] ? inet_recvmsg+0x5c0/0x5c0 [ 37.323049] sock_sendmsg+0xc3/0x120 [ 37.326750] ___sys_sendmsg+0x3b3/0x8e0 [ 37.330710] ? copy_msghdr_from_user+0x440/0x440 [ 37.335451] ? __fget+0x32f/0x510 [ 37.338891] ? lock_downgrade+0x720/0x720 [ 37.343022] ? check_preemption_disabled+0x41/0x280 [ 37.348023] ? check_preemption_disabled+0x41/0x280 [ 37.353030] ? __fget+0x356/0x510 [ 37.356553] ? do_dup2+0x450/0x450 [ 37.360083] ? lock_downgrade+0x720/0x720 [ 37.364216] ? lock_acquire+0x170/0x3c0 [ 37.368173] ? __fdget+0x1d0/0x230 [ 37.371696] __sys_sendmmsg+0x195/0x470 [ 37.375655] ? __ia32_sys_sendmsg+0x220/0x220 [ 37.380138] ? __sys_connect+0x140/0x2c0 [ 37.384182] ? __ia32_sys_accept+0xb0/0xb0 [ 37.388588] ? __se_sys_futex+0x28f/0x3b0 [ 37.392728] ? __se_sys_futex+0x298/0x3b0 [ 37.396864] ? do_futex+0x1880/0x1880 [ 37.400653] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.406122] __x64_sys_sendmmsg+0x99/0x100 [ 37.410345] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.414910] do_syscall_64+0xf9/0x620 [ 37.418697] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.423878] RIP: 0033:0x7fbe2b3338e9 [ 37.427579] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 37.446504] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 37.454222] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 37.461501] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 37.468837] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 executing program [ 37.476089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 [ 37.483340] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 37.540988] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 37.551804] CPU: 0 PID: 8382 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 37.559673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.569018] Call Trace: [ 37.571600] dump_stack+0x1fc/0x2ef [ 37.575210] ccid3_update_send_interval.cold+0x87/0x93 [ 37.580561] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 37.585296] ? ccid3_update_send_interval+0x120/0x120 [ 37.590469] dccp_xmit_packet+0x27e/0x760 [ 37.594597] dccp_write_xmit+0x16d/0x1d0 [ 37.598642] dccp_sendmsg+0x8de/0xc90 [ 37.602424] ? aa_sk_perm+0x534/0x930 [ 37.606204] ? dccp_ioctl+0x160/0x160 [ 37.609984] ? aa_af_perm+0x230/0x230 [ 37.613763] ? kernel_recvmsg+0x220/0x220 [ 37.618072] inet_sendmsg+0x132/0x5a0 [ 37.621854] ? security_socket_sendmsg+0x83/0xb0 [ 37.626604] ? inet_recvmsg+0x5c0/0x5c0 [ 37.630568] sock_sendmsg+0xc3/0x120 [ 37.634264] ___sys_sendmsg+0x3b3/0x8e0 [ 37.638224] ? copy_msghdr_from_user+0x440/0x440 [ 37.642962] ? __fget+0x32f/0x510 [ 37.646398] ? lock_downgrade+0x720/0x720 [ 37.650528] ? check_preemption_disabled+0x41/0x280 [ 37.655536] ? check_preemption_disabled+0x41/0x280 [ 37.660538] ? __fget+0x356/0x510 [ 37.663973] ? do_dup2+0x450/0x450 [ 37.667496] ? lock_downgrade+0x720/0x720 [ 37.671633] ? lock_acquire+0x170/0x3c0 [ 37.675591] ? __fdget+0x1d0/0x230 [ 37.679111] __sys_sendmmsg+0x195/0x470 [ 37.683074] ? __ia32_sys_sendmsg+0x220/0x220 [ 37.687557] ? __sys_connect+0x140/0x2c0 [ 37.691607] ? __ia32_sys_accept+0xb0/0xb0 [ 37.695845] ? __se_sys_futex+0x28f/0x3b0 [ 37.699993] ? __se_sys_futex+0x298/0x3b0 [ 37.704134] ? do_futex+0x1880/0x1880 [ 37.707932] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.713279] __x64_sys_sendmmsg+0x99/0x100 [ 37.717510] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.722072] do_syscall_64+0xf9/0x620 [ 37.725855] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.731026] RIP: 0033:0x7fbe2b3338e9 [ 37.734721] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 37.753618] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 37.761307] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 37.768566] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 37.775819] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 37.783069] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 37.790319] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 37.890681] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 37.901281] CPU: 0 PID: 8388 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 37.909147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.918475] Call Trace: [ 37.921047] dump_stack+0x1fc/0x2ef [ 37.924657] ccid3_update_send_interval.cold+0x87/0x93 [ 37.929914] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 37.934671] ? ccid3_update_send_interval+0x120/0x120 [ 37.939847] dccp_xmit_packet+0x27e/0x760 [ 37.943976] dccp_write_xmit+0x16d/0x1d0 [ 37.948020] dccp_sendmsg+0x8de/0xc90 [ 37.951821] ? aa_sk_perm+0x534/0x930 [ 37.955612] ? dccp_ioctl+0x160/0x160 [ 37.959402] ? aa_af_perm+0x230/0x230 [ 37.963202] ? kernel_recvmsg+0x220/0x220 [ 37.967357] inet_sendmsg+0x132/0x5a0 [ 37.971144] ? security_socket_sendmsg+0x83/0xb0 [ 37.975878] ? inet_recvmsg+0x5c0/0x5c0 [ 37.979834] sock_sendmsg+0xc3/0x120 [ 37.983535] ___sys_sendmsg+0x3b3/0x8e0 [ 37.987634] ? copy_msghdr_from_user+0x440/0x440 [ 37.992377] ? __fget+0x32f/0x510 [ 37.995821] ? lock_downgrade+0x720/0x720 [ 38.000053] ? check_preemption_disabled+0x41/0x280 [ 38.005263] ? check_preemption_disabled+0x41/0x280 [ 38.010266] ? __fget+0x356/0x510 [ 38.013709] ? do_dup2+0x450/0x450 [ 38.017234] ? lock_downgrade+0x720/0x720 [ 38.021362] ? lock_acquire+0x170/0x3c0 [ 38.025325] ? __fdget+0x1d0/0x230 [ 38.028846] __sys_sendmmsg+0x195/0x470 [ 38.032803] ? __ia32_sys_sendmsg+0x220/0x220 [ 38.037282] ? __sys_connect+0x140/0x2c0 [ 38.041321] ? __ia32_sys_accept+0xb0/0xb0 [ 38.045554] ? __se_sys_futex+0x28f/0x3b0 [ 38.049690] ? __se_sys_futex+0x298/0x3b0 [ 38.053821] ? do_futex+0x1880/0x1880 [ 38.057602] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.062948] __x64_sys_sendmmsg+0x99/0x100 [ 38.067232] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.071793] do_syscall_64+0xf9/0x620 [ 38.075576] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.080742] RIP: 0033:0x7fbe2b3338e9 [ 38.084530] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 38.103420] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 38.111120] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 38.118381] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 38.125652] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 38.132915] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 38.140170] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 38.192016] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 38.203586] CPU: 0 PID: 8391 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 38.211502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 38.220848] Call Trace: [ 38.223424] dump_stack+0x1fc/0x2ef [ 38.227037] ccid3_update_send_interval.cold+0x87/0x93 [ 38.232305] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 38.237040] ? ccid3_update_send_interval+0x120/0x120 [ 38.242211] dccp_xmit_packet+0x27e/0x760 [ 38.246343] dccp_write_xmit+0x16d/0x1d0 [ 38.250386] dccp_sendmsg+0x8de/0xc90 [ 38.254178] ? aa_sk_perm+0x534/0x930 [ 38.257956] ? dccp_ioctl+0x160/0x160 [ 38.261739] ? aa_af_perm+0x230/0x230 [ 38.265524] ? kernel_recvmsg+0x220/0x220 [ 38.269655] inet_sendmsg+0x132/0x5a0 [ 38.273440] ? security_socket_sendmsg+0x83/0xb0 [ 38.278177] ? inet_recvmsg+0x5c0/0x5c0 [ 38.282138] sock_sendmsg+0xc3/0x120 [ 38.285833] ___sys_sendmsg+0x3b3/0x8e0 [ 38.289792] ? copy_msghdr_from_user+0x440/0x440 [ 38.294531] ? __fget+0x32f/0x510 [ 38.297967] ? lock_downgrade+0x720/0x720 [ 38.302095] ? check_preemption_disabled+0x41/0x280 [ 38.307091] ? check_preemption_disabled+0x41/0x280 [ 38.312089] ? __fget+0x356/0x510 [ 38.315534] ? do_dup2+0x450/0x450 [ 38.319070] ? lock_downgrade+0x720/0x720 [ 38.323198] ? lock_acquire+0x170/0x3c0 [ 38.327218] ? __fdget+0x1d0/0x230 [ 38.330760] __sys_sendmmsg+0x195/0x470 [ 38.334722] ? __ia32_sys_sendmsg+0x220/0x220 [ 38.339207] ? __sys_connect+0x140/0x2c0 [ 38.343272] ? __ia32_sys_accept+0xb0/0xb0 [ 38.347515] ? __se_sys_futex+0x28f/0x3b0 [ 38.351661] ? __se_sys_futex+0x298/0x3b0 [ 38.355965] ? do_futex+0x1880/0x1880 [ 38.359753] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.365099] __x64_sys_sendmmsg+0x99/0x100 [ 38.369352] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.373925] do_syscall_64+0xf9/0x620 [ 38.377710] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.382879] RIP: 0033:0x7fbe2b3338e9 [ 38.386604] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 38.405608] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 38.413312] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 38.420568] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 38.427815] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 38.435061] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program executing program [ 38.442307] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 38.540516] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 38.551213] CPU: 1 PID: 8397 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 38.559078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 38.568416] Call Trace: [ 38.570996] dump_stack+0x1fc/0x2ef [ 38.574608] ccid3_update_send_interval.cold+0x87/0x93 [ 38.579876] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 38.584632] ? ccid3_update_send_interval+0x120/0x120 [ 38.589812] dccp_xmit_packet+0x27e/0x760 [ 38.593942] dccp_write_xmit+0x16d/0x1d0 [ 38.598044] dccp_sendmsg+0x8de/0xc90 [ 38.601831] ? aa_sk_perm+0x534/0x930 [ 38.605612] ? dccp_ioctl+0x160/0x160 [ 38.609395] ? aa_af_perm+0x230/0x230 [ 38.613183] ? kernel_recvmsg+0x220/0x220 [ 38.617324] inet_sendmsg+0x132/0x5a0 [ 38.621113] ? security_socket_sendmsg+0x83/0xb0 [ 38.625857] ? inet_recvmsg+0x5c0/0x5c0 [ 38.629813] sock_sendmsg+0xc3/0x120 [ 38.633508] ___sys_sendmsg+0x3b3/0x8e0 [ 38.637464] ? copy_msghdr_from_user+0x440/0x440 [ 38.642205] ? __fget+0x32f/0x510 [ 38.645642] ? lock_downgrade+0x720/0x720 [ 38.649773] ? check_preemption_disabled+0x41/0x280 [ 38.654777] ? check_preemption_disabled+0x41/0x280 [ 38.659782] ? __fget+0x356/0x510 [ 38.663229] ? do_dup2+0x450/0x450 [ 38.666760] ? lock_downgrade+0x720/0x720 [ 38.670889] ? lock_acquire+0x170/0x3c0 [ 38.674854] ? __fdget+0x1d0/0x230 [ 38.678383] __sys_sendmmsg+0x195/0x470 [ 38.682342] ? __ia32_sys_sendmsg+0x220/0x220 [ 38.686824] ? __sys_connect+0x140/0x2c0 [ 38.690867] ? __ia32_sys_accept+0xb0/0xb0 [ 38.695085] ? __se_sys_futex+0x28f/0x3b0 [ 38.699229] ? __se_sys_futex+0x298/0x3b0 [ 38.703368] ? do_futex+0x1880/0x1880 [ 38.707157] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.712511] __x64_sys_sendmmsg+0x99/0x100 [ 38.716729] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.721294] do_syscall_64+0xf9/0x620 [ 38.725080] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.730254] RIP: 0033:0x7fbe2b3338e9 [ 38.733951] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 38.752839] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 38.760641] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 38.767911] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 38.775239] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 38.782497] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 38.789760] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 38.841571] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 38.852727] CPU: 0 PID: 8400 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 38.860706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 38.870039] Call Trace: [ 38.872613] dump_stack+0x1fc/0x2ef [ 38.876224] ccid3_update_send_interval.cold+0x87/0x93 [ 38.881487] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 38.886225] ? ccid3_update_send_interval+0x120/0x120 [ 38.891394] dccp_xmit_packet+0x27e/0x760 [ 38.895540] dccp_write_xmit+0x16d/0x1d0 [ 38.899595] dccp_sendmsg+0x8de/0xc90 [ 38.903468] ? aa_sk_perm+0x534/0x930 [ 38.907253] ? dccp_ioctl+0x160/0x160 [ 38.911032] ? aa_af_perm+0x230/0x230 [ 38.914813] ? kernel_recvmsg+0x220/0x220 [ 38.918948] inet_sendmsg+0x132/0x5a0 [ 38.922729] ? security_socket_sendmsg+0x83/0xb0 [ 38.927553] ? inet_recvmsg+0x5c0/0x5c0 [ 38.931506] sock_sendmsg+0xc3/0x120 [ 38.935206] ___sys_sendmsg+0x3b3/0x8e0 [ 38.939160] ? copy_msghdr_from_user+0x440/0x440 [ 38.943899] ? __fget+0x32f/0x510 [ 38.947337] ? lock_downgrade+0x720/0x720 [ 38.951493] ? check_preemption_disabled+0x41/0x280 [ 38.956512] ? check_preemption_disabled+0x41/0x280 [ 38.961513] ? __fget+0x356/0x510 [ 38.964946] ? do_dup2+0x450/0x450 [ 38.968469] ? lock_downgrade+0x720/0x720 [ 38.972599] ? lock_acquire+0x170/0x3c0 [ 38.976555] ? __fdget+0x1d0/0x230 [ 38.980076] __sys_sendmmsg+0x195/0x470 [ 38.984042] ? __ia32_sys_sendmsg+0x220/0x220 [ 38.988529] ? __sys_connect+0x140/0x2c0 [ 38.992570] ? __ia32_sys_accept+0xb0/0xb0 [ 38.996787] ? __se_sys_futex+0x28f/0x3b0 [ 39.000916] ? __se_sys_futex+0x298/0x3b0 [ 39.005049] ? do_futex+0x1880/0x1880 [ 39.008830] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.014175] __x64_sys_sendmmsg+0x99/0x100 [ 39.018390] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.022952] do_syscall_64+0xf9/0x620 [ 39.026739] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.031906] RIP: 0033:0x7fbe2b3338e9 [ 39.035600] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 39.054478] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 39.062173] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007fbe2b3338e9 [ 39.069420] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 39.076667] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 39.083916] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program executing program [ 39.091251] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program executing program executing program executing program executing program executing program [ 39.406216] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 39.416940] CPU: 1 PID: 8424 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 39.424812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 39.434151] Call Trace: [ 39.436726] dump_stack+0x1fc/0x2ef [ 39.440342] ccid3_update_send_interval.cold+0x87/0x93 [ 39.445602] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 39.450342] ? ccid3_update_send_interval+0x120/0x120 [ 39.455601] dccp_xmit_packet+0x27e/0x760 [ 39.459733] dccp_write_xmit+0x16d/0x1d0 [ 39.463773] dccp_sendmsg+0x8de/0xc90 [ 39.467554] ? aa_sk_perm+0x534/0x930 [ 39.471335] ? dccp_ioctl+0x160/0x160 [ 39.475116] ? aa_af_perm+0x230/0x230 [ 39.478910] ? kernel_recvmsg+0x220/0x220 [ 39.483047] inet_sendmsg+0x132/0x5a0 [ 39.486957] ? security_socket_sendmsg+0x83/0xb0 [ 39.491700] ? inet_recvmsg+0x5c0/0x5c0 [ 39.495770] sock_sendmsg+0xc3/0x120 [ 39.499468] ___sys_sendmsg+0x3b3/0x8e0 [ 39.503443] ? copy_msghdr_from_user+0x440/0x440 [ 39.508186] ? __fget+0x32f/0x510 [ 39.511628] ? lock_downgrade+0x720/0x720 [ 39.515759] ? check_preemption_disabled+0x41/0x280 [ 39.520773] ? check_preemption_disabled+0x41/0x280 [ 39.525893] ? __fget+0x356/0x510 [ 39.529340] ? do_dup2+0x450/0x450 [ 39.532876] ? lock_downgrade+0x720/0x720 [ 39.537711] ? lock_acquire+0x170/0x3c0 [ 39.541673] ? __fdget+0x1d0/0x230 [ 39.545196] __sys_sendmmsg+0x195/0x470 [ 39.549262] ? __ia32_sys_sendmsg+0x220/0x220 [ 39.553754] ? __sys_connect+0x140/0x2c0 [ 39.557795] ? __ia32_sys_accept+0xb0/0xb0 [ 39.562024] ? __se_sys_futex+0x28f/0x3b0 [ 39.566180] ? __se_sys_futex+0x298/0x3b0 [ 39.570316] ? do_futex+0x1880/0x1880 [ 39.574101] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.579546] __x64_sys_sendmmsg+0x99/0x100 [ 39.583764] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.588326] do_syscall_64+0xf9/0x620 [ 39.592113] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.597285] RIP: 0033:0x7fbe2b3338e9 [ 39.600987] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 39.619916] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 39.627694] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 39.634954] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 39.642215] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 39.649472] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 39.656735] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 39.714654] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 39.726346] CPU: 0 PID: 8427 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 39.734214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 39.743547] Call Trace: [ 39.746556] dump_stack+0x1fc/0x2ef [ 39.750174] ccid3_update_send_interval.cold+0x87/0x93 [ 39.755434] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 39.760174] ? ccid3_update_send_interval+0x120/0x120 [ 39.765354] dccp_xmit_packet+0x27e/0x760 [ 39.769488] dccp_write_xmit+0x16d/0x1d0 [ 39.773535] dccp_sendmsg+0x8de/0xc90 [ 39.777347] ? aa_sk_perm+0x534/0x930 [ 39.781302] ? dccp_ioctl+0x160/0x160 [ 39.785087] ? aa_af_perm+0x230/0x230 [ 39.788912] ? kernel_recvmsg+0x220/0x220 [ 39.793043] inet_sendmsg+0x132/0x5a0 [ 39.796889] ? security_socket_sendmsg+0x83/0xb0 [ 39.801663] ? inet_recvmsg+0x5c0/0x5c0 [ 39.805625] sock_sendmsg+0xc3/0x120 [ 39.809323] ___sys_sendmsg+0x3b3/0x8e0 [ 39.813281] ? copy_msghdr_from_user+0x440/0x440 [ 39.818021] ? __fget+0x32f/0x510 [ 39.821500] ? lock_downgrade+0x720/0x720 [ 39.825659] ? check_preemption_disabled+0x41/0x280 [ 39.830658] ? check_preemption_disabled+0x41/0x280 [ 39.835748] ? __fget+0x356/0x510 [ 39.839184] ? do_dup2+0x450/0x450 [ 39.842715] ? lock_downgrade+0x720/0x720 [ 39.846844] ? lock_acquire+0x170/0x3c0 [ 39.850803] ? __fdget+0x1d0/0x230 [ 39.854325] __sys_sendmmsg+0x195/0x470 [ 39.858283] ? __ia32_sys_sendmsg+0x220/0x220 [ 39.862765] ? __sys_connect+0x140/0x2c0 [ 39.866807] ? __ia32_sys_accept+0xb0/0xb0 [ 39.871033] ? __se_sys_futex+0x28f/0x3b0 [ 39.875166] ? __se_sys_futex+0x298/0x3b0 [ 39.879298] ? do_futex+0x1880/0x1880 [ 39.883084] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.888468] __x64_sys_sendmmsg+0x99/0x100 [ 39.892689] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.897254] do_syscall_64+0xf9/0x620 [ 39.901043] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.906217] RIP: 0033:0x7fbe2b3338e9 [ 39.909914] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 39.928798] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 39.936505] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fbe2b3338e9 [ 39.943757] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 39.951009] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 39.958263] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program executing program [ 39.965515] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program executing program [ 40.112480] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 40.123111] CPU: 0 PID: 8439 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 40.131098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 40.140434] Call Trace: [ 40.143016] dump_stack+0x1fc/0x2ef [ 40.146644] ccid3_update_send_interval.cold+0x87/0x93 [ 40.152027] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 40.156791] ? ccid3_update_send_interval+0x120/0x120 [ 40.161995] dccp_xmit_packet+0x27e/0x760 [ 40.166148] dccp_write_xmit+0x16d/0x1d0 [ 40.170195] dccp_sendmsg+0x8de/0xc90 [ 40.173989] ? aa_sk_perm+0x534/0x930 [ 40.177781] ? dccp_ioctl+0x160/0x160 [ 40.181568] ? aa_af_perm+0x230/0x230 [ 40.185370] ? kernel_recvmsg+0x220/0x220 [ 40.189535] inet_sendmsg+0x132/0x5a0 [ 40.193329] ? security_socket_sendmsg+0x83/0xb0 [ 40.198160] ? inet_recvmsg+0x5c0/0x5c0 [ 40.202120] sock_sendmsg+0xc3/0x120 [ 40.205822] ___sys_sendmsg+0x3b3/0x8e0 [ 40.209788] ? copy_msghdr_from_user+0x440/0x440 [ 40.214530] ? __fget+0x32f/0x510 [ 40.217967] ? lock_downgrade+0x720/0x720 [ 40.222126] ? check_preemption_disabled+0x41/0x280 [ 40.227214] ? check_preemption_disabled+0x41/0x280 [ 40.232225] ? __fget+0x356/0x510 [ 40.235661] ? do_dup2+0x450/0x450 [ 40.239185] ? lock_downgrade+0x720/0x720 [ 40.243323] ? lock_acquire+0x170/0x3c0 [ 40.247286] ? __fdget+0x1d0/0x230 [ 40.250811] __sys_sendmmsg+0x195/0x470 [ 40.254787] ? __ia32_sys_sendmsg+0x220/0x220 [ 40.259276] ? __sys_connect+0x140/0x2c0 [ 40.263328] ? __ia32_sys_accept+0xb0/0xb0 [ 40.267561] ? __se_sys_futex+0x28f/0x3b0 [ 40.271703] ? __se_sys_futex+0x298/0x3b0 [ 40.275837] ? do_futex+0x1880/0x1880 [ 40.279625] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 40.284978] __x64_sys_sendmmsg+0x99/0x100 [ 40.289303] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.293878] do_syscall_64+0xf9/0x620 [ 40.297668] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.302841] RIP: 0033:0x7fbe2b3338e9 [ 40.306539] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 40.325530] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 40.333396] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 40.340760] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 40.348008] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 40.355256] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 40.362506] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 40.469980] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 40.480642] CPU: 0 PID: 8447 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 40.488509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 40.497865] Call Trace: [ 40.500443] dump_stack+0x1fc/0x2ef [ 40.504055] ccid3_update_send_interval.cold+0x87/0x93 [ 40.509316] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 40.514055] ? ccid3_update_send_interval+0x120/0x120 [ 40.519322] dccp_xmit_packet+0x27e/0x760 [ 40.523463] dccp_write_xmit+0x16d/0x1d0 [ 40.527503] dccp_sendmsg+0x8de/0xc90 [ 40.531293] ? aa_sk_perm+0x534/0x930 [ 40.535079] ? dccp_ioctl+0x160/0x160 [ 40.538861] ? aa_af_perm+0x230/0x230 [ 40.542641] ? kernel_recvmsg+0x220/0x220 [ 40.546770] inet_sendmsg+0x132/0x5a0 [ 40.550556] ? security_socket_sendmsg+0x83/0xb0 [ 40.555296] ? inet_recvmsg+0x5c0/0x5c0 [ 40.559261] sock_sendmsg+0xc3/0x120 [ 40.562962] ___sys_sendmsg+0x3b3/0x8e0 [ 40.566927] ? copy_msghdr_from_user+0x440/0x440 [ 40.571663] ? __fget+0x32f/0x510 [ 40.575106] ? lock_downgrade+0x720/0x720 [ 40.579253] ? check_preemption_disabled+0x41/0x280 [ 40.584251] ? check_preemption_disabled+0x41/0x280 [ 40.589250] ? __fget+0x356/0x510 [ 40.592686] ? do_dup2+0x450/0x450 [ 40.596280] ? lock_downgrade+0x720/0x720 [ 40.600408] ? lock_acquire+0x170/0x3c0 [ 40.604360] ? __fdget+0x1d0/0x230 [ 40.607884] __sys_sendmmsg+0x195/0x470 [ 40.611842] ? __ia32_sys_sendmsg+0x220/0x220 [ 40.616321] ? __sys_connect+0x140/0x2c0 [ 40.620365] ? __ia32_sys_accept+0xb0/0xb0 [ 40.624589] ? __se_sys_futex+0x28f/0x3b0 [ 40.628720] ? __se_sys_futex+0x298/0x3b0 [ 40.632938] ? do_futex+0x1880/0x1880 [ 40.636720] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 40.642065] __x64_sys_sendmmsg+0x99/0x100 [ 40.646282] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.650844] do_syscall_64+0xf9/0x620 [ 40.654629] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.659797] RIP: 0033:0x7fbe2b3338e9 [ 40.663490] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 40.682371] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 40.690056] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 40.697306] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 40.704663] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 40.711920] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program executing program [ 40.719171] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 40.857556] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 40.868199] CPU: 1 PID: 8456 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 40.876149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 40.885483] Call Trace: [ 40.888064] dump_stack+0x1fc/0x2ef [ 40.891743] ccid3_update_send_interval.cold+0x87/0x93 [ 40.897180] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 40.901923] ? ccid3_update_send_interval+0x120/0x120 [ 40.907100] dccp_xmit_packet+0x27e/0x760 [ 40.911232] dccp_write_xmit+0x16d/0x1d0 [ 40.915278] dccp_sendmsg+0x8de/0xc90 [ 40.919064] ? aa_sk_perm+0x534/0x930 [ 40.922847] ? dccp_ioctl+0x160/0x160 [ 40.926633] ? aa_af_perm+0x230/0x230 [ 40.930424] ? kernel_recvmsg+0x220/0x220 [ 40.934553] inet_sendmsg+0x132/0x5a0 [ 40.938342] ? security_socket_sendmsg+0x83/0xb0 [ 40.943086] ? inet_recvmsg+0x5c0/0x5c0 [ 40.947039] sock_sendmsg+0xc3/0x120 [ 40.950735] ___sys_sendmsg+0x3b3/0x8e0 [ 40.954697] ? copy_msghdr_from_user+0x440/0x440 [ 40.959526] ? __fget+0x32f/0x510 [ 40.962961] ? lock_downgrade+0x720/0x720 [ 40.967091] ? check_preemption_disabled+0x41/0x280 [ 40.972091] ? check_preemption_disabled+0x41/0x280 [ 40.977089] ? __fget+0x356/0x510 [ 40.980523] ? do_dup2+0x450/0x450 [ 40.984073] ? lock_downgrade+0x720/0x720 [ 40.988200] ? lock_acquire+0x170/0x3c0 [ 40.992162] ? __fdget+0x1d0/0x230 [ 40.995683] __sys_sendmmsg+0x195/0x470 [ 40.999659] ? __ia32_sys_sendmsg+0x220/0x220 [ 41.004139] ? __sys_connect+0x140/0x2c0 [ 41.008179] ? __ia32_sys_accept+0xb0/0xb0 [ 41.012398] ? __se_sys_futex+0x28f/0x3b0 [ 41.016530] ? __se_sys_futex+0x298/0x3b0 [ 41.020662] ? do_futex+0x1880/0x1880 [ 41.024517] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.029866] __x64_sys_sendmmsg+0x99/0x100 [ 41.034084] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.038659] do_syscall_64+0xf9/0x620 [ 41.042450] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.047630] RIP: 0033:0x7fbe2b3338e9 [ 41.051345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 41.070224] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 41.077931] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007fbe2b3338e9 [ 41.085180] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 41.092431] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 41.099681] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 41.106927] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 41.205461] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 41.216321] CPU: 0 PID: 8462 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 41.224193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.233526] Call Trace: [ 41.236100] dump_stack+0x1fc/0x2ef [ 41.239709] ccid3_update_send_interval.cold+0x87/0x93 [ 41.244972] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 41.249716] ? ccid3_update_send_interval+0x120/0x120 [ 41.254889] dccp_xmit_packet+0x27e/0x760 [ 41.259023] dccp_write_xmit+0x16d/0x1d0 [ 41.263067] dccp_sendmsg+0x8de/0xc90 [ 41.266850] ? aa_sk_perm+0x534/0x930 [ 41.270632] ? dccp_ioctl+0x160/0x160 [ 41.274415] ? aa_af_perm+0x230/0x230 [ 41.278201] ? kernel_recvmsg+0x220/0x220 [ 41.282347] inet_sendmsg+0x132/0x5a0 [ 41.286134] ? security_socket_sendmsg+0x83/0xb0 [ 41.290874] ? inet_recvmsg+0x5c0/0x5c0 [ 41.294915] sock_sendmsg+0xc3/0x120 [ 41.298609] ___sys_sendmsg+0x3b3/0x8e0 [ 41.302563] ? copy_msghdr_from_user+0x440/0x440 [ 41.307396] ? __fget+0x32f/0x510 [ 41.310838] ? lock_downgrade+0x720/0x720 [ 41.314970] ? check_preemption_disabled+0x41/0x280 [ 41.319967] ? check_preemption_disabled+0x41/0x280 [ 41.324966] ? __fget+0x356/0x510 [ 41.328399] ? do_dup2+0x450/0x450 [ 41.331950] ? lock_downgrade+0x720/0x720 [ 41.336075] ? lock_acquire+0x170/0x3c0 [ 41.340031] ? __fdget+0x1d0/0x230 [ 41.343554] __sys_sendmmsg+0x195/0x470 [ 41.347508] ? __ia32_sys_sendmsg+0x220/0x220 [ 41.351990] ? __sys_connect+0x140/0x2c0 [ 41.356028] ? __ia32_sys_accept+0xb0/0xb0 [ 41.360258] ? __se_sys_futex+0x28f/0x3b0 [ 41.364397] ? __se_sys_futex+0x298/0x3b0 [ 41.368530] ? do_futex+0x1880/0x1880 [ 41.372323] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.377667] __x64_sys_sendmmsg+0x99/0x100 [ 41.381887] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.386448] do_syscall_64+0xf9/0x620 [ 41.390236] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.395405] RIP: 0033:0x7fbe2b3338e9 [ 41.399113] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 41.418004] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 41.425788] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 41.433038] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 41.440286] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 41.447534] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program executing program [ 41.454786] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 41.553954] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 41.564733] CPU: 0 PID: 8468 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 41.572601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.581934] Call Trace: [ 41.584507] dump_stack+0x1fc/0x2ef [ 41.588119] ccid3_update_send_interval.cold+0x87/0x93 [ 41.593378] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 41.598124] ? ccid3_update_send_interval+0x120/0x120 [ 41.603308] dccp_xmit_packet+0x27e/0x760 [ 41.607441] dccp_write_xmit+0x16d/0x1d0 [ 41.611483] dccp_sendmsg+0x8de/0xc90 [ 41.615269] ? aa_sk_perm+0x534/0x930 [ 41.619047] ? dccp_ioctl+0x160/0x160 [ 41.622828] ? aa_af_perm+0x230/0x230 [ 41.626609] ? kernel_recvmsg+0x220/0x220 [ 41.630745] inet_sendmsg+0x132/0x5a0 [ 41.634527] ? security_socket_sendmsg+0x83/0xb0 [ 41.639266] ? inet_recvmsg+0x5c0/0x5c0 [ 41.643223] sock_sendmsg+0xc3/0x120 [ 41.646915] ___sys_sendmsg+0x3b3/0x8e0 [ 41.650873] ? copy_msghdr_from_user+0x440/0x440 [ 41.655612] ? __fget+0x32f/0x510 [ 41.659048] ? lock_downgrade+0x720/0x720 [ 41.663187] ? check_preemption_disabled+0x41/0x280 [ 41.668190] ? check_preemption_disabled+0x41/0x280 [ 41.673186] ? __fget+0x356/0x510 [ 41.676622] ? do_dup2+0x450/0x450 [ 41.680144] ? lock_downgrade+0x720/0x720 [ 41.684306] ? lock_acquire+0x170/0x3c0 [ 41.688260] ? __fdget+0x1d0/0x230 [ 41.691780] __sys_sendmmsg+0x195/0x470 [ 41.695744] ? __ia32_sys_sendmsg+0x220/0x220 [ 41.700225] ? __sys_connect+0x140/0x2c0 [ 41.704267] ? __ia32_sys_accept+0xb0/0xb0 [ 41.708496] ? __se_sys_futex+0x28f/0x3b0 [ 41.712636] ? __se_sys_futex+0x298/0x3b0 [ 41.716766] ? do_futex+0x1880/0x1880 [ 41.720549] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.725900] __x64_sys_sendmmsg+0x99/0x100 [ 41.730115] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.734791] do_syscall_64+0xf9/0x620 [ 41.738583] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.743758] RIP: 0033:0x7fbe2b3338e9 [ 41.747459] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 41.766350] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 41.774132] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 41.781472] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 41.788722] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 41.795973] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 41.803220] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 41.859977] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 41.871263] CPU: 0 PID: 8471 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 41.879158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.888517] Call Trace: [ 41.891106] dump_stack+0x1fc/0x2ef [ 41.894727] ccid3_update_send_interval.cold+0x87/0x93 [ 41.899986] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 41.904733] ? ccid3_update_send_interval+0x120/0x120 [ 41.909911] dccp_xmit_packet+0x27e/0x760 [ 41.914049] dccp_write_xmit+0x16d/0x1d0 [ 41.918093] dccp_sendmsg+0x8de/0xc90 [ 41.921872] ? aa_sk_perm+0x534/0x930 [ 41.925650] ? dccp_ioctl+0x160/0x160 [ 41.929430] ? aa_af_perm+0x230/0x230 [ 41.933232] ? kernel_recvmsg+0x220/0x220 [ 41.937361] inet_sendmsg+0x132/0x5a0 [ 41.941143] ? security_socket_sendmsg+0x83/0xb0 [ 41.945881] ? inet_recvmsg+0x5c0/0x5c0 [ 41.949833] sock_sendmsg+0xc3/0x120 [ 41.953525] ___sys_sendmsg+0x3b3/0x8e0 [ 41.957494] ? copy_msghdr_from_user+0x440/0x440 [ 41.962242] ? __fget+0x32f/0x510 [ 41.965684] ? lock_downgrade+0x720/0x720 [ 41.969817] ? check_preemption_disabled+0x41/0x280 [ 41.974823] ? check_preemption_disabled+0x41/0x280 [ 41.979832] ? __fget+0x356/0x510 [ 41.983272] ? do_dup2+0x450/0x450 [ 41.986800] ? lock_downgrade+0x720/0x720 [ 41.990939] ? lock_acquire+0x170/0x3c0 [ 41.994913] ? __fdget+0x1d0/0x230 [ 41.998452] __sys_sendmmsg+0x195/0x470 [ 42.002419] ? __ia32_sys_sendmsg+0x220/0x220 [ 42.006904] ? __sys_connect+0x140/0x2c0 [ 42.010956] ? __ia32_sys_accept+0xb0/0xb0 [ 42.015188] ? __se_sys_futex+0x28f/0x3b0 [ 42.019329] ? __se_sys_futex+0x298/0x3b0 [ 42.023464] ? do_futex+0x1880/0x1880 [ 42.027251] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.032607] __x64_sys_sendmmsg+0x99/0x100 [ 42.036830] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.041394] do_syscall_64+0xf9/0x620 [ 42.045178] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.050351] RIP: 0033:0x7fbe2b3338e9 [ 42.054046] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 42.073013] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 42.080701] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 42.087964] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 42.095211] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 42.102457] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 42.109712] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program executing program executing program [ 42.289096] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 42.300408] CPU: 0 PID: 8483 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 42.308316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 42.317737] Call Trace: [ 42.320311] dump_stack+0x1fc/0x2ef [ 42.323919] ccid3_update_send_interval.cold+0x87/0x93 [ 42.329179] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 42.333916] ? ccid3_update_send_interval+0x120/0x120 [ 42.339085] dccp_xmit_packet+0x27e/0x760 [ 42.343245] dccp_write_xmit+0x16d/0x1d0 [ 42.347375] dccp_sendmsg+0x8de/0xc90 [ 42.351160] ? aa_sk_perm+0x534/0x930 [ 42.354973] ? dccp_ioctl+0x160/0x160 [ 42.358755] ? aa_af_perm+0x230/0x230 [ 42.362543] ? kernel_recvmsg+0x220/0x220 [ 42.366675] inet_sendmsg+0x132/0x5a0 [ 42.370534] ? security_socket_sendmsg+0x83/0xb0 [ 42.375456] ? inet_recvmsg+0x5c0/0x5c0 [ 42.379432] sock_sendmsg+0xc3/0x120 [ 42.383132] ___sys_sendmsg+0x3b3/0x8e0 [ 42.387089] ? copy_msghdr_from_user+0x440/0x440 [ 42.391827] ? __fget+0x32f/0x510 [ 42.395276] ? lock_downgrade+0x720/0x720 [ 42.399402] ? check_preemption_disabled+0x41/0x280 [ 42.404485] ? check_preemption_disabled+0x41/0x280 [ 42.409480] ? __fget+0x356/0x510 [ 42.412912] ? do_dup2+0x450/0x450 [ 42.416447] ? lock_downgrade+0x720/0x720 [ 42.420574] ? lock_acquire+0x170/0x3c0 [ 42.424526] ? __fdget+0x1d0/0x230 [ 42.428047] __sys_sendmmsg+0x195/0x470 [ 42.432000] ? __ia32_sys_sendmsg+0x220/0x220 [ 42.436480] ? __sys_connect+0x140/0x2c0 [ 42.440523] ? __ia32_sys_accept+0xb0/0xb0 [ 42.444739] ? __se_sys_futex+0x28f/0x3b0 [ 42.448866] ? __se_sys_futex+0x298/0x3b0 [ 42.453005] ? do_futex+0x1880/0x1880 [ 42.456789] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.462130] __x64_sys_sendmmsg+0x99/0x100 [ 42.466345] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.470904] do_syscall_64+0xf9/0x620 [ 42.474687] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.479856] RIP: 0033:0x7fbe2b3338e9 [ 42.483549] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 42.502430] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 42.510126] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fbe2b3338e9 [ 42.517392] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 42.524664] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 42.531935] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 42.539186] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program executing program [ 42.681517] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 42.692178] CPU: 1 PID: 8492 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 42.700046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 42.709590] Call Trace: [ 42.712165] dump_stack+0x1fc/0x2ef [ 42.715862] ccid3_update_send_interval.cold+0x87/0x93 [ 42.721122] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 42.725868] ? ccid3_update_send_interval+0x120/0x120 [ 42.731046] dccp_xmit_packet+0x27e/0x760 [ 42.735177] dccp_write_xmit+0x16d/0x1d0 [ 42.739221] dccp_sendmsg+0x8de/0xc90 [ 42.743011] ? aa_sk_perm+0x534/0x930 [ 42.746791] ? dccp_ioctl+0x160/0x160 [ 42.750578] ? aa_af_perm+0x230/0x230 [ 42.754365] ? kernel_recvmsg+0x220/0x220 [ 42.758507] inet_sendmsg+0x132/0x5a0 [ 42.762307] ? security_socket_sendmsg+0x83/0xb0 [ 42.767043] ? inet_recvmsg+0x5c0/0x5c0 [ 42.770998] sock_sendmsg+0xc3/0x120 [ 42.774780] ___sys_sendmsg+0x3b3/0x8e0 [ 42.778737] ? copy_msghdr_from_user+0x440/0x440 [ 42.783569] ? __fget+0x32f/0x510 [ 42.787006] ? lock_downgrade+0x720/0x720 [ 42.791145] ? check_preemption_disabled+0x41/0x280 [ 42.796145] ? check_preemption_disabled+0x41/0x280 [ 42.801159] ? __fget+0x356/0x510 [ 42.804594] ? do_dup2+0x450/0x450 [ 42.808115] ? lock_downgrade+0x720/0x720 [ 42.812245] ? lock_acquire+0x170/0x3c0 [ 42.816201] ? __fdget+0x1d0/0x230 [ 42.819727] __sys_sendmmsg+0x195/0x470 [ 42.823686] ? __ia32_sys_sendmsg+0x220/0x220 [ 42.828165] ? __sys_connect+0x140/0x2c0 [ 42.832203] ? __ia32_sys_accept+0xb0/0xb0 [ 42.836425] ? __se_sys_futex+0x28f/0x3b0 [ 42.840558] ? __se_sys_futex+0x298/0x3b0 [ 42.844753] ? do_futex+0x1880/0x1880 [ 42.848539] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.853883] __x64_sys_sendmmsg+0x99/0x100 [ 42.858109] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.862677] do_syscall_64+0xf9/0x620 [ 42.866461] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.871635] RIP: 0033:0x7fbe2b3338e9 [ 42.875333] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 42.894218] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 42.901915] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 42.909169] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 42.916420] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 42.923673] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 42.930930] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 43.029724] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 43.040436] CPU: 0 PID: 8498 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 43.048298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.057631] Call Trace: [ 43.060201] dump_stack+0x1fc/0x2ef [ 43.063820] ccid3_update_send_interval.cold+0x87/0x93 [ 43.069088] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 43.073923] ? ccid3_update_send_interval+0x120/0x120 [ 43.079098] dccp_xmit_packet+0x27e/0x760 [ 43.083236] dccp_write_xmit+0x16d/0x1d0 [ 43.087279] dccp_sendmsg+0x8de/0xc90 [ 43.091062] ? aa_sk_perm+0x534/0x930 [ 43.094847] ? dccp_ioctl+0x160/0x160 [ 43.098628] ? aa_af_perm+0x230/0x230 [ 43.102410] ? kernel_recvmsg+0x220/0x220 [ 43.106542] inet_sendmsg+0x132/0x5a0 [ 43.110327] ? security_socket_sendmsg+0x83/0xb0 [ 43.115063] ? inet_recvmsg+0x5c0/0x5c0 [ 43.119018] sock_sendmsg+0xc3/0x120 [ 43.122710] ___sys_sendmsg+0x3b3/0x8e0 [ 43.126666] ? copy_msghdr_from_user+0x440/0x440 [ 43.131405] ? __fget+0x32f/0x510 [ 43.134840] ? lock_downgrade+0x720/0x720 [ 43.138967] ? check_preemption_disabled+0x41/0x280 [ 43.143963] ? check_preemption_disabled+0x41/0x280 [ 43.148957] ? __fget+0x356/0x510 [ 43.152400] ? do_dup2+0x450/0x450 [ 43.155921] ? lock_downgrade+0x720/0x720 [ 43.160048] ? lock_acquire+0x170/0x3c0 [ 43.164002] ? __fdget+0x1d0/0x230 [ 43.167525] __sys_sendmmsg+0x195/0x470 [ 43.171483] ? __ia32_sys_sendmsg+0x220/0x220 [ 43.175961] ? __sys_connect+0x140/0x2c0 [ 43.180008] ? __ia32_sys_accept+0xb0/0xb0 [ 43.184247] ? __se_sys_futex+0x28f/0x3b0 [ 43.188385] ? __se_sys_futex+0x298/0x3b0 [ 43.192513] ? do_futex+0x1880/0x1880 [ 43.196307] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 43.201660] __x64_sys_sendmmsg+0x99/0x100 [ 43.205882] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.210458] do_syscall_64+0xf9/0x620 [ 43.214255] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.219429] RIP: 0033:0x7fbe2b3338e9 [ 43.223124] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 43.242003] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 43.249691] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 43.256949] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 43.264203] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 43.271461] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 43.278818] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 43.379213] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 43.390025] CPU: 1 PID: 8504 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 43.397903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.407245] Call Trace: [ 43.409824] dump_stack+0x1fc/0x2ef [ 43.413528] ccid3_update_send_interval.cold+0x87/0x93 [ 43.418790] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 43.423533] ? ccid3_update_send_interval+0x120/0x120 [ 43.428710] dccp_xmit_packet+0x27e/0x760 [ 43.432838] dccp_write_xmit+0x16d/0x1d0 [ 43.436879] dccp_sendmsg+0x8de/0xc90 [ 43.440661] ? aa_sk_perm+0x534/0x930 [ 43.444440] ? dccp_ioctl+0x160/0x160 [ 43.448235] ? aa_af_perm+0x230/0x230 [ 43.452026] ? kernel_recvmsg+0x220/0x220 [ 43.456154] inet_sendmsg+0x132/0x5a0 [ 43.459946] ? security_socket_sendmsg+0x83/0xb0 [ 43.464877] ? inet_recvmsg+0x5c0/0x5c0 [ 43.468842] sock_sendmsg+0xc3/0x120 [ 43.472552] ___sys_sendmsg+0x3b3/0x8e0 [ 43.476513] ? copy_msghdr_from_user+0x440/0x440 [ 43.481252] ? __fget+0x32f/0x510 [ 43.484687] ? lock_downgrade+0x720/0x720 [ 43.488825] ? check_preemption_disabled+0x41/0x280 [ 43.493832] ? check_preemption_disabled+0x41/0x280 [ 43.498850] ? __fget+0x356/0x510 [ 43.502297] ? do_dup2+0x450/0x450 [ 43.505823] ? lock_downgrade+0x720/0x720 [ 43.509953] ? lock_acquire+0x170/0x3c0 [ 43.513910] ? __fdget+0x1d0/0x230 [ 43.517449] __sys_sendmmsg+0x195/0x470 [ 43.521415] ? __ia32_sys_sendmsg+0x220/0x220 [ 43.525895] ? __sys_connect+0x140/0x2c0 [ 43.529937] ? __ia32_sys_accept+0xb0/0xb0 [ 43.534176] ? __se_sys_futex+0x28f/0x3b0 [ 43.538314] ? __se_sys_futex+0x298/0x3b0 [ 43.542445] ? do_futex+0x1880/0x1880 [ 43.546228] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 43.551592] __x64_sys_sendmmsg+0x99/0x100 [ 43.555830] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.560409] do_syscall_64+0xf9/0x620 [ 43.564196] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.569367] RIP: 0033:0x7fbe2b3338e9 [ 43.573094] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 43.591984] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 43.599674] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 43.606921] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 43.614172] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 43.621448] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 43.628697] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program executing program executing program executing program [ 43.819301] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 43.830526] CPU: 1 PID: 8521 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 43.838404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.847755] Call Trace: [ 43.850334] dump_stack+0x1fc/0x2ef [ 43.853945] ccid3_update_send_interval.cold+0x87/0x93 [ 43.859213] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 43.863959] ? ccid3_update_send_interval+0x120/0x120 [ 43.869154] dccp_xmit_packet+0x27e/0x760 [ 43.873294] dccp_write_xmit+0x16d/0x1d0 [ 43.877346] dccp_sendmsg+0x8de/0xc90 [ 43.881253] ? aa_sk_perm+0x534/0x930 [ 43.885036] ? dccp_ioctl+0x160/0x160 [ 43.888821] ? aa_af_perm+0x230/0x230 [ 43.892611] ? kernel_recvmsg+0x220/0x220 [ 43.896755] inet_sendmsg+0x132/0x5a0 [ 43.900549] ? security_socket_sendmsg+0x83/0xb0 [ 43.905288] ? inet_recvmsg+0x5c0/0x5c0 [ 43.909247] sock_sendmsg+0xc3/0x120 [ 43.912947] ___sys_sendmsg+0x3b3/0x8e0 [ 43.916904] ? copy_msghdr_from_user+0x440/0x440 [ 43.921644] ? __fget+0x32f/0x510 [ 43.925101] ? lock_downgrade+0x720/0x720 [ 43.929233] ? check_preemption_disabled+0x41/0x280 [ 43.934228] ? check_preemption_disabled+0x41/0x280 [ 43.939230] ? __fget+0x356/0x510 [ 43.942675] ? do_dup2+0x450/0x450 [ 43.946205] ? lock_downgrade+0x720/0x720 [ 43.950783] ? lock_acquire+0x170/0x3c0 [ 43.954757] ? __fdget+0x1d0/0x230 [ 43.958283] __sys_sendmmsg+0x195/0x470 [ 43.962239] ? __ia32_sys_sendmsg+0x220/0x220 [ 43.966721] ? __sys_connect+0x140/0x2c0 [ 43.970758] ? __ia32_sys_accept+0xb0/0xb0 [ 43.974978] ? __se_sys_futex+0x28f/0x3b0 [ 43.979122] ? __se_sys_futex+0x298/0x3b0 [ 43.983356] ? do_futex+0x1880/0x1880 [ 43.987139] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 43.992488] __x64_sys_sendmmsg+0x99/0x100 [ 43.996707] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.001274] do_syscall_64+0xf9/0x620 [ 44.005059] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.010227] RIP: 0033:0x7fbe2b3338e9 [ 44.013926] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 44.032809] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 44.040500] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 44.047751] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 44.055019] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 44.062358] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 44.069609] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program executing program [ 44.211441] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 44.222070] CPU: 0 PID: 8530 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 44.229934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 44.239265] Call Trace: [ 44.241837] dump_stack+0x1fc/0x2ef [ 44.245449] ccid3_update_send_interval.cold+0x87/0x93 [ 44.250708] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 44.255445] ? ccid3_update_send_interval+0x120/0x120 [ 44.260631] dccp_xmit_packet+0x27e/0x760 [ 44.264771] dccp_write_xmit+0x16d/0x1d0 [ 44.268815] dccp_sendmsg+0x8de/0xc90 [ 44.272599] ? aa_sk_perm+0x534/0x930 [ 44.276380] ? dccp_ioctl+0x160/0x160 [ 44.280171] ? aa_af_perm+0x230/0x230 [ 44.283955] ? kernel_recvmsg+0x220/0x220 [ 44.288088] inet_sendmsg+0x132/0x5a0 [ 44.291882] ? security_socket_sendmsg+0x83/0xb0 [ 44.296639] ? inet_recvmsg+0x5c0/0x5c0 [ 44.300603] sock_sendmsg+0xc3/0x120 [ 44.304304] ___sys_sendmsg+0x3b3/0x8e0 [ 44.308263] ? copy_msghdr_from_user+0x440/0x440 [ 44.313000] ? __fget+0x32f/0x510 [ 44.316614] ? lock_downgrade+0x720/0x720 [ 44.320835] ? check_preemption_disabled+0x41/0x280 [ 44.325834] ? check_preemption_disabled+0x41/0x280 [ 44.330836] ? __fget+0x356/0x510 [ 44.334269] ? do_dup2+0x450/0x450 [ 44.337793] ? lock_downgrade+0x720/0x720 [ 44.341917] ? lock_acquire+0x170/0x3c0 [ 44.345871] ? __fdget+0x1d0/0x230 [ 44.349392] __sys_sendmmsg+0x195/0x470 [ 44.353350] ? __ia32_sys_sendmsg+0x220/0x220 [ 44.357833] ? __sys_connect+0x140/0x2c0 [ 44.361877] ? __ia32_sys_accept+0xb0/0xb0 [ 44.366103] ? __se_sys_futex+0x28f/0x3b0 [ 44.370241] ? __se_sys_futex+0x298/0x3b0 [ 44.374370] ? do_futex+0x1880/0x1880 [ 44.378157] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 44.383507] __x64_sys_sendmmsg+0x99/0x100 [ 44.387721] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.392283] do_syscall_64+0xf9/0x620 [ 44.396066] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.401232] RIP: 0033:0x7fbe2b3338e9 [ 44.404926] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 44.423911] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 44.431595] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fbe2b3338e9 [ 44.438841] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 44.446088] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 44.453339] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program executing program [ 44.460590] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 executing program [ 44.569616] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 44.580167] CPU: 1 PID: 8539 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 44.588126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 44.597467] Call Trace: [ 44.600049] dump_stack+0x1fc/0x2ef [ 44.603665] ccid3_update_send_interval.cold+0x87/0x93 [ 44.608937] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 44.613679] ? ccid3_update_send_interval+0x120/0x120 [ 44.618856] dccp_xmit_packet+0x27e/0x760 [ 44.622988] dccp_write_xmit+0x16d/0x1d0 [ 44.627031] dccp_sendmsg+0x8de/0xc90 [ 44.630817] ? aa_sk_perm+0x534/0x930 [ 44.634605] ? dccp_ioctl+0x160/0x160 [ 44.638385] ? aa_af_perm+0x230/0x230 [ 44.642167] ? kernel_recvmsg+0x220/0x220 [ 44.646297] inet_sendmsg+0x132/0x5a0 [ 44.650079] ? security_socket_sendmsg+0x83/0xb0 [ 44.654824] ? inet_recvmsg+0x5c0/0x5c0 [ 44.658868] sock_sendmsg+0xc3/0x120 [ 44.662564] ___sys_sendmsg+0x3b3/0x8e0 [ 44.666518] ? copy_msghdr_from_user+0x440/0x440 [ 44.671258] ? __fget+0x32f/0x510 [ 44.674705] ? lock_downgrade+0x720/0x720 [ 44.678843] ? check_preemption_disabled+0x41/0x280 [ 44.683842] ? check_preemption_disabled+0x41/0x280 [ 44.688843] ? __fget+0x356/0x510 [ 44.692294] ? do_dup2+0x450/0x450 [ 44.695908] ? lock_downgrade+0x720/0x720 [ 44.700035] ? lock_acquire+0x170/0x3c0 [ 44.703992] ? __fdget+0x1d0/0x230 [ 44.707523] __sys_sendmmsg+0x195/0x470 [ 44.711492] ? __ia32_sys_sendmsg+0x220/0x220 [ 44.715974] ? __sys_connect+0x140/0x2c0 [ 44.720015] ? __ia32_sys_accept+0xb0/0xb0 [ 44.724244] ? __se_sys_futex+0x28f/0x3b0 [ 44.728393] ? __se_sys_futex+0x298/0x3b0 [ 44.732521] ? do_futex+0x1880/0x1880 [ 44.736301] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 44.741659] __x64_sys_sendmmsg+0x99/0x100 [ 44.745894] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.750462] do_syscall_64+0xf9/0x620 [ 44.754251] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.759418] RIP: 0033:0x7fbe2b3338e9 [ 44.763111] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 44.781999] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 44.789691] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 44.796949] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 44.804220] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 44.811469] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program [ 44.818720] R13: 00007fbe2b3894f4 R14: 00007fbe2b2e1400 R15: 0000000000022000 [ 44.875003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:101/ccid3_update_send_interval() [ 44.886179] CPU: 0 PID: 8542 Comm: syz-executor219 Not tainted 4.19.211-syzkaller #0 [ 44.894049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 44.903395] Call Trace: [ 44.905981] dump_stack+0x1fc/0x2ef [ 44.909589] ccid3_update_send_interval.cold+0x87/0x93 [ 44.914848] ccid3_hc_tx_packet_sent+0x12e/0x160 [ 44.919587] ? ccid3_update_send_interval+0x120/0x120 [ 44.924756] dccp_xmit_packet+0x27e/0x760 [ 44.928886] dccp_write_xmit+0x16d/0x1d0 [ 44.932944] dccp_sendmsg+0x8de/0xc90 [ 44.936732] ? aa_sk_perm+0x534/0x930 [ 44.940509] ? dccp_ioctl+0x160/0x160 [ 44.944286] ? aa_af_perm+0x230/0x230 [ 44.948066] ? kernel_recvmsg+0x220/0x220 [ 44.952194] inet_sendmsg+0x132/0x5a0 [ 44.955977] ? security_socket_sendmsg+0x83/0xb0 [ 44.960712] ? inet_recvmsg+0x5c0/0x5c0 [ 44.964669] sock_sendmsg+0xc3/0x120 [ 44.968362] ___sys_sendmsg+0x3b3/0x8e0 [ 44.972315] ? copy_msghdr_from_user+0x440/0x440 [ 44.977143] ? __fget+0x32f/0x510 [ 44.980581] ? lock_downgrade+0x720/0x720 [ 44.984710] ? check_preemption_disabled+0x41/0x280 [ 44.990162] ? check_preemption_disabled+0x41/0x280 [ 44.995157] ? __fget+0x356/0x510 [ 44.998591] ? do_dup2+0x450/0x450 [ 45.002113] ? lock_downgrade+0x720/0x720 [ 45.006239] ? lock_acquire+0x170/0x3c0 [ 45.010195] ? __fdget+0x1d0/0x230 [ 45.013718] __sys_sendmmsg+0x195/0x470 [ 45.017673] ? __ia32_sys_sendmsg+0x220/0x220 [ 45.022159] ? __sys_connect+0x140/0x2c0 [ 45.026200] ? __ia32_sys_accept+0xb0/0xb0 [ 45.030422] ? __se_sys_futex+0x28f/0x3b0 [ 45.034547] ? __se_sys_futex+0x298/0x3b0 [ 45.038674] ? do_futex+0x1880/0x1880 [ 45.042461] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 45.047803] __x64_sys_sendmmsg+0x99/0x100 [ 45.052021] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 45.056676] do_syscall_64+0xf9/0x620 [ 45.060458] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.065713] RIP: 0033:0x7fbe2b3338e9 [ 45.069500] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 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 b8 ff ff ff f7 d8 64 89 01 48 [ 45.088379] RSP: 002b:00007fbe2b2e1308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 45.096063] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbe2b3338e9 [ 45.103314] RDX: 0000000000000001 RSI: 0000000020001e80 RDI: 0000000000000004 [ 45.110561] RBP: 00007fbe2b3bc4c8 R08: 0000000000000000 R09: 0000000000000000 [ 45.117816] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe2b3bc4c0 executing program