Warning: Permanently added '10.128.1.39' (ED25519) to the list of known hosts. 1970/01/01 00:01:23 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:01:24 parsed 1 programs [ 87.274416][ T4435] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 97.794078][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.796383][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.800098][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 97.812064][ T307] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.815074][ T307] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.817631][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 99.338077][ T4497] chnl_net:caif_netlink_parms(): no params data found [ 99.371135][ T4497] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.374829][ T4497] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.377517][ T4497] device bridge_slave_0 entered promiscuous mode [ 99.381169][ T4497] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.383862][ T4497] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.386483][ T4497] device bridge_slave_1 entered promiscuous mode [ 99.402403][ T4497] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.407362][ T4497] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.424631][ T4497] team0: Port device team_slave_0 added [ 99.428287][ T4497] team0: Port device team_slave_1 added [ 99.442269][ T4497] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.444530][ T4497] 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. [ 99.451638][ T4497] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.459131][ T4497] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.461149][ T4497] 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. [ 99.469018][ T4497] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.525515][ T4497] device hsr_slave_0 entered promiscuous mode [ 99.583682][ T4497] device hsr_slave_1 entered promiscuous mode [ 100.338531][ T4497] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 100.377532][ T4497] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 100.425035][ T4497] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 100.454937][ T4497] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 100.520912][ T4497] 8021q: adding VLAN 0 to HW filter on device bond0 [ 100.530036][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 100.532786][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 100.539765][ T4497] 8021q: adding VLAN 0 to HW filter on device team0 [ 100.546590][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 100.549324][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 100.552019][ T307] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.554090][ T307] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.565444][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 100.568006][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 100.570737][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 100.573729][ T307] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.575758][ T307] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.578168][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 100.592238][ T4497] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 100.600344][ T4497] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 100.635878][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 100.639040][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 100.642608][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 100.648330][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 100.651481][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 100.654721][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 100.657460][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 100.660304][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 100.662922][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 100.672048][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 100.676012][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 100.751689][ T4497] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 100.757784][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 100.759965][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 100.770832][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 100.776174][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 100.788006][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 100.790778][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 100.795606][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 100.798160][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 100.802521][ T4497] device veth0_vlan entered promiscuous mode [ 100.812129][ T4497] device veth1_vlan entered promiscuous mode [ 100.827134][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 100.829788][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 100.832569][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 100.836776][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 100.841115][ T4497] device veth0_macvtap entered promiscuous mode [ 100.845928][ T4497] device veth1_macvtap entered promiscuous mode [ 100.854798][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 100.857691][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 100.861332][ T4497] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 100.867639][ T4497] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 100.871203][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 100.874246][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 100.878166][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 100.881245][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 100.885305][ T4497] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.887997][ T4497] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.890482][ T4497] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.892863][ T4497] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:41 executed programs: 0 [ 101.448268][ T4624] chnl_net:caif_netlink_parms(): no params data found [ 101.495888][ T4624] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.497985][ T4624] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.500683][ T4624] device bridge_slave_0 entered promiscuous mode [ 101.505240][ T4624] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.507195][ T4624] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.509722][ T4624] device bridge_slave_1 entered promiscuous mode [ 101.523905][ T4624] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 101.528189][ T4624] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 101.547266][ T4624] team0: Port device team_slave_0 added [ 101.550501][ T4624] team0: Port device team_slave_1 added [ 101.564065][ T4624] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 101.565966][ T4624] 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. [ 101.572960][ T4624] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 101.577554][ T4624] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 101.579448][ T4624] 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. [ 101.586743][ T4624] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.655396][ T4624] device hsr_slave_0 entered promiscuous mode [ 101.683637][ T4624] device hsr_slave_1 entered promiscuous mode [ 101.723317][ T4624] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 101.725459][ T4624] Cannot create hsr debugfs directory [ 101.826640][ T4624] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.383632][ T4104] Bluetooth: hci0: command 0x0409 tx timeout [ 104.019101][ T4624] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.453405][ T4105] Bluetooth: hci0: command 0x041b tx timeout [ 105.848782][ T4624] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.930279][ T4624] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 106.150572][ T4624] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 106.188669][ T4624] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 106.225104][ T4624] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 106.265531][ T4624] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 106.347982][ T4624] 8021q: adding VLAN 0 to HW filter on device bond0 [ 106.355137][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 106.357870][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 106.362400][ T4624] 8021q: adding VLAN 0 to HW filter on device team0 [ 106.368883][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 106.371733][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 106.374676][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.376656][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.378966][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 106.383679][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 106.386487][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 106.389041][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.390924][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 106.398973][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 106.415448][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 106.423718][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 106.427330][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 106.430264][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 106.435484][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 106.438303][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 106.442220][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 106.445781][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 106.450466][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 106.453139][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 106.459077][ T4624] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 106.842729][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 106.845103][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 106.851427][ T4624] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 106.862055][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 106.865312][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 106.882470][ T4624] device veth0_vlan entered promiscuous mode [ 106.888326][ T4624] device veth1_vlan entered promiscuous mode [ 106.894927][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 106.897652][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 106.900330][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 106.902932][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 106.910347][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 106.912852][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 106.923047][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 106.926033][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 106.931071][ T4624] device veth0_macvtap entered promiscuous mode [ 106.936869][ T4624] device veth1_macvtap entered promiscuous mode [ 106.946671][ T4624] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 106.949779][ T4624] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 106.954155][ T4624] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 106.956505][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 106.959199][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 106.961749][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 106.965017][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 106.969830][ T4624] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 106.972753][ T4624] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 106.976866][ T4624] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 106.979012][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 106.981885][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 106.989464][ T4624] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 106.991884][ T4624] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 106.995478][ T4624] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 106.997794][ T4624] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.041508][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.052049][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.057296][ T1629] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 107.060891][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.063093][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.066327][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:47 executed programs: 2 [ 107.098218][ T4873] dccp_xmit_packet: Payload too large (65475) for featneg. [ 107.132673][ T4875] dccp_xmit_packet: Payload too large (65475) for featneg. [ 107.175992][ T4877] dccp_xmit_packet: Payload too large (65475) for featneg. [ 107.192033][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.196009][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.198152][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.200875][ T4877] Call trace: [ 107.201797][ T4877] dump_backtrace+0x0/0x43c [ 107.203120][ T4877] show_stack+0x2c/0x3c [ 107.204304][ T4877] __dump_stack+0x30/0x40 [ 107.205566][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.206785][ T4877] dump_stack+0x1c/0x5c [ 107.207884][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.209427][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.210734][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.212309][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.213583][ T4877] inet_sendmsg+0x154/0x284 [ 107.214833][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.216047][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.217513][ T4877] invoke_syscall+0x98/0x2b8 [ 107.218788][ T4877] el0_svc_common+0x138/0x258 [ 107.220028][ T4877] do_el0_svc+0x58/0x14c [ 107.221195][ T4877] el0_svc+0x78/0x1e0 [ 107.222356][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.223630][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.226944][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.230101][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.232241][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.234966][ T4877] Call trace: [ 107.235871][ T4877] dump_backtrace+0x0/0x43c [ 107.237152][ T4877] show_stack+0x2c/0x3c [ 107.238327][ T4877] __dump_stack+0x30/0x40 [ 107.239561][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.240753][ T4877] dump_stack+0x1c/0x5c [ 107.242002][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.243511][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.244899][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.246233][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.247507][ T4877] inet_sendmsg+0x154/0x284 [ 107.248765][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.249974][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.251280][ T4877] invoke_syscall+0x98/0x2b8 [ 107.252614][ T4877] el0_svc_common+0x138/0x258 [ 107.253915][ T4877] do_el0_svc+0x58/0x14c [ 107.255066][ T4877] el0_svc+0x78/0x1e0 [ 107.256229][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.257619][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.260067][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.264184][ T4877] CPU: 1 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.266416][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.269060][ T4877] Call trace: [ 107.269945][ T4877] dump_backtrace+0x0/0x43c [ 107.271129][ T4877] show_stack+0x2c/0x3c [ 107.272289][ T4877] __dump_stack+0x30/0x40 [ 107.273490][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.274739][ T4877] dump_stack+0x1c/0x5c [ 107.275985][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.277545][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.278985][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.280260][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.281612][ T4877] inet_sendmsg+0x154/0x284 [ 107.282894][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.284105][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.285448][ T4877] invoke_syscall+0x98/0x2b8 [ 107.286703][ T4877] el0_svc_common+0x138/0x258 [ 107.288026][ T4877] do_el0_svc+0x58/0x14c [ 107.289243][ T4877] el0_svc+0x78/0x1e0 [ 107.290335][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.291826][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.294849][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.298212][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.300396][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.303309][ T4877] Call trace: [ 107.304224][ T4877] dump_backtrace+0x0/0x43c [ 107.305497][ T4877] show_stack+0x2c/0x3c [ 107.306627][ T4877] __dump_stack+0x30/0x40 [ 107.307801][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.309054][ T4877] dump_stack+0x1c/0x5c [ 107.310227][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.311717][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.312999][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.314305][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.315505][ T4877] inet_sendmsg+0x154/0x284 [ 107.316737][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.317994][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.319393][ T4877] invoke_syscall+0x98/0x2b8 [ 107.320621][ T4877] el0_svc_common+0x138/0x258 [ 107.321919][ T4877] do_el0_svc+0x58/0x14c [ 107.323099][ T4877] el0_svc+0x78/0x1e0 [ 107.324148][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.325617][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.328972][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.332395][ T4877] CPU: 1 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.334510][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.337268][ T4877] Call trace: [ 107.338211][ T4877] dump_backtrace+0x0/0x43c [ 107.339472][ T4877] show_stack+0x2c/0x3c [ 107.340587][ T4877] __dump_stack+0x30/0x40 [ 107.341743][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.342946][ T4877] dump_stack+0x1c/0x5c [ 107.344193][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.345678][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.347161][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.348456][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.349757][ T4877] inet_sendmsg+0x154/0x284 [ 107.350968][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.352218][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.353569][ T4877] invoke_syscall+0x98/0x2b8 [ 107.354858][ T4877] el0_svc_common+0x138/0x258 [ 107.356186][ T4877] do_el0_svc+0x58/0x14c [ 107.357357][ T4877] el0_svc+0x78/0x1e0 [ 107.358522][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.359921][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.362840][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.366697][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.368913][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.371633][ T4877] Call trace: [ 107.372558][ T4877] dump_backtrace+0x0/0x43c [ 107.373805][ T4877] show_stack+0x2c/0x3c [ 107.375014][ T4877] __dump_stack+0x30/0x40 [ 107.376226][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.377501][ T4877] dump_stack+0x1c/0x5c [ 107.378646][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.380197][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.381516][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.382828][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.384115][ T4877] inet_sendmsg+0x154/0x284 [ 107.385398][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.386633][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.387926][ T4877] invoke_syscall+0x98/0x2b8 [ 107.389174][ T4877] el0_svc_common+0x138/0x258 [ 107.390459][ T4877] do_el0_svc+0x58/0x14c [ 107.391631][ T4877] el0_svc+0x78/0x1e0 [ 107.392801][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.394187][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.396471][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.399674][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.401886][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.404793][ T4877] Call trace: [ 107.405717][ T4877] dump_backtrace+0x0/0x43c [ 107.406994][ T4877] show_stack+0x2c/0x3c [ 107.408127][ T4877] __dump_stack+0x30/0x40 [ 107.409353][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.410636][ T4877] dump_stack+0x1c/0x5c [ 107.411759][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.413226][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.414561][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.415920][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.417201][ T4877] inet_sendmsg+0x154/0x284 [ 107.418469][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.419757][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.421095][ T4877] invoke_syscall+0x98/0x2b8 [ 107.422391][ T4877] el0_svc_common+0x138/0x258 [ 107.423806][ T4877] do_el0_svc+0x58/0x14c [ 107.424981][ T4877] el0_svc+0x78/0x1e0 [ 107.426185][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.427613][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.429828][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.432986][ T4877] CPU: 1 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.435348][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.438110][ T4877] Call trace: [ 107.439016][ T4877] dump_backtrace+0x0/0x43c [ 107.440242][ T4877] show_stack+0x2c/0x3c [ 107.441411][ T4877] __dump_stack+0x30/0x40 [ 107.442649][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.443926][ T4877] dump_stack+0x1c/0x5c [ 107.445089][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.446627][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.447942][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.449315][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.450605][ T4877] inet_sendmsg+0x154/0x284 [ 107.451852][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.453106][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.454423][ T4877] invoke_syscall+0x98/0x2b8 [ 107.455661][ T4877] el0_svc_common+0x138/0x258 [ 107.456977][ T4877] do_el0_svc+0x58/0x14c [ 107.458158][ T4877] el0_svc+0x78/0x1e0 [ 107.459261][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.460725][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.466270][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.469437][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.471657][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.474489][ T4877] Call trace: [ 107.475419][ T4877] dump_backtrace+0x0/0x43c [ 107.476699][ T4877] show_stack+0x2c/0x3c [ 107.477952][ T4877] __dump_stack+0x30/0x40 [ 107.479229][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.480617][ T4877] dump_stack+0x1c/0x5c [ 107.481753][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.483347][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.484776][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.486126][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.487429][ T4877] inet_sendmsg+0x154/0x284 [ 107.488700][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.489978][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.491332][ T4877] invoke_syscall+0x98/0x2b8 [ 107.492608][ T4877] el0_svc_common+0x138/0x258 [ 107.493872][ T4877] do_el0_svc+0x58/0x14c [ 107.495003][ T4877] el0_svc+0x78/0x1e0 [ 107.496192][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.497533][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.499832][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.503518][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.505793][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.508500][ T4877] Call trace: [ 107.509378][ T4877] dump_backtrace+0x0/0x43c [ 107.510691][ T4877] show_stack+0x2c/0x3c [ 107.511847][ T4877] __dump_stack+0x30/0x40 [ 107.513066][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.514347][ T4877] dump_stack+0x1c/0x5c [ 107.515470][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.517073][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.518545][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.519881][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.521099][ T4877] inet_sendmsg+0x154/0x284 [ 107.522341][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.523594][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.524978][ T4877] invoke_syscall+0x98/0x2b8 [ 107.526258][ T4877] el0_svc_common+0x138/0x258 [ 107.527509][ T4877] do_el0_svc+0x58/0x14c [ 107.528724][ T4877] el0_svc+0x78/0x1e0 [ 107.529814][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.531117][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.533339][ T4877] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.533755][ T4103] Bluetooth: hci0: command 0x040f tx timeout [ 107.536334][ T4877] CPU: 0 PID: 4877 Comm: syz.0.18 Not tainted 5.15.185-syzkaller #0 [ 107.540167][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.542861][ T4877] Call trace: [ 107.543826][ T4877] dump_backtrace+0x0/0x43c [ 107.545103][ T4877] show_stack+0x2c/0x3c [ 107.546301][ T4877] __dump_stack+0x30/0x40 [ 107.547538][ T4877] dump_stack_lvl+0xf8/0x160 [ 107.548821][ T4877] dump_stack+0x1c/0x5c [ 107.549978][ T4877] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.551479][ T4877] dccp_xmit_packet+0x298/0x448 [ 107.552872][ T4877] dccp_write_xmit+0x118/0x1d0 [ 107.554192][ T4877] dccp_sendmsg+0x538/0x8a8 [ 107.555485][ T4877] inet_sendmsg+0x154/0x284 [ 107.556699][ T4877] __sys_sendto+0x2e8/0x3d8 [ 107.557894][ T4877] __arm64_sys_sendto+0xd8/0xf8 [ 107.559249][ T4877] invoke_syscall+0x98/0x2b8 [ 107.560525][ T4877] el0_svc_common+0x138/0x258 [ 107.561826][ T4877] do_el0_svc+0x58/0x14c [ 107.563038][ T4877] el0_svc+0x78/0x1e0 [ 107.564160][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 107.565530][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 107.588024][ T4879] dccp_xmit_packet: Payload too large (65475) for featneg. [ 107.624348][ T4881] dccp_xmit_packet: Payload too large (65475) for featneg. [ 107.641615][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.645028][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.647181][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.650038][ T4881] Call trace: [ 107.650899][ T4881] dump_backtrace+0x0/0x43c [ 107.652160][ T4881] show_stack+0x2c/0x3c [ 107.653262][ T4881] __dump_stack+0x30/0x40 [ 107.654435][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.655687][ T4881] dump_stack+0x1c/0x5c [ 107.656799][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.658283][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.659598][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.660846][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.662085][ T4881] inet_sendmsg+0x154/0x284 [ 107.663308][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.664571][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.665965][ T4881] invoke_syscall+0x98/0x2b8 [ 107.667232][ T4881] el0_svc_common+0x138/0x258 [ 107.668468][ T4881] do_el0_svc+0x58/0x14c [ 107.669593][ T4881] el0_svc+0x78/0x1e0 [ 107.670695][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.672019][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.673655][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.676661][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.678877][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.681666][ T4881] Call trace: [ 107.682650][ T4881] dump_backtrace+0x0/0x43c [ 107.683880][ T4881] show_stack+0x2c/0x3c [ 107.685053][ T4881] __dump_stack+0x30/0x40 [ 107.686248][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.687534][ T4881] dump_stack+0x1c/0x5c [ 107.688708][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.690231][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.691599][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.692886][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.694130][ T4881] inet_sendmsg+0x154/0x284 [ 107.695406][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.696616][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.697932][ T4881] invoke_syscall+0x98/0x2b8 [ 107.699200][ T4881] el0_svc_common+0x138/0x258 [ 107.700497][ T4881] do_el0_svc+0x58/0x14c [ 107.701688][ T4881] el0_svc+0x78/0x1e0 [ 107.702803][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.704220][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.705977][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.709493][ T4881] CPU: 1 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.711805][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.714565][ T4881] Call trace: [ 107.715442][ T4881] dump_backtrace+0x0/0x43c [ 107.716636][ T4881] show_stack+0x2c/0x3c [ 107.717748][ T4881] __dump_stack+0x30/0x40 [ 107.719000][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.720270][ T4881] dump_stack+0x1c/0x5c [ 107.721383][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.722869][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.724251][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.725595][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.726816][ T4881] inet_sendmsg+0x154/0x284 [ 107.728018][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.729238][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.730541][ T4881] invoke_syscall+0x98/0x2b8 [ 107.731761][ T4881] el0_svc_common+0x138/0x258 [ 107.733031][ T4881] do_el0_svc+0x58/0x14c [ 107.734201][ T4881] el0_svc+0x78/0x1e0 [ 107.735328][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.736771][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.740001][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.743395][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.745639][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.748439][ T4881] Call trace: [ 107.749319][ T4881] dump_backtrace+0x0/0x43c [ 107.750591][ T4881] show_stack+0x2c/0x3c [ 107.751731][ T4881] __dump_stack+0x30/0x40 [ 107.752941][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.754208][ T4881] dump_stack+0x1c/0x5c [ 107.755348][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.756862][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.758230][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.759583][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.760810][ T4881] inet_sendmsg+0x154/0x284 [ 107.762069][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.763330][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.764685][ T4881] invoke_syscall+0x98/0x2b8 [ 107.765962][ T4881] el0_svc_common+0x138/0x258 [ 107.767244][ T4881] do_el0_svc+0x58/0x14c [ 107.768387][ T4881] el0_svc+0x78/0x1e0 [ 107.769526][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.770880][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.774659][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.777701][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.779836][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.782574][ T4881] Call trace: [ 107.783437][ T4881] dump_backtrace+0x0/0x43c [ 107.784620][ T4881] show_stack+0x2c/0x3c [ 107.785726][ T4881] __dump_stack+0x30/0x40 [ 107.786864][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.788101][ T4881] dump_stack+0x1c/0x5c [ 107.789277][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.790746][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.792083][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.793409][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.794654][ T4881] inet_sendmsg+0x154/0x284 [ 107.795843][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.797032][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.798398][ T4881] invoke_syscall+0x98/0x2b8 [ 107.799818][ T4881] el0_svc_common+0x138/0x258 [ 107.801258][ T4881] do_el0_svc+0x58/0x14c [ 107.802418][ T4881] el0_svc+0x78/0x1e0 [ 107.803495][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.804842][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.807310][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.810376][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.812463][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.815282][ T4881] Call trace: [ 107.816218][ T4881] dump_backtrace+0x0/0x43c [ 107.817443][ T4881] show_stack+0x2c/0x3c [ 107.818599][ T4881] __dump_stack+0x30/0x40 [ 107.819801][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.821025][ T4881] dump_stack+0x1c/0x5c [ 107.822221][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.823700][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.824976][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.826264][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.827505][ T4881] inet_sendmsg+0x154/0x284 [ 107.828725][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.829990][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.831330][ T4881] invoke_syscall+0x98/0x2b8 [ 107.832610][ T4881] el0_svc_common+0x138/0x258 [ 107.833870][ T4881] do_el0_svc+0x58/0x14c [ 107.835090][ T4881] el0_svc+0x78/0x1e0 [ 107.836179][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.837538][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.839177][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.842224][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.844352][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.847153][ T4881] Call trace: [ 107.847996][ T4881] dump_backtrace+0x0/0x43c [ 107.849253][ T4881] show_stack+0x2c/0x3c [ 107.850355][ T4881] __dump_stack+0x30/0x40 [ 107.851574][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.852755][ T4881] dump_stack+0x1c/0x5c [ 107.853904][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.855475][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.856808][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.858078][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.859320][ T4881] inet_sendmsg+0x154/0x284 [ 107.860556][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.861794][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.863100][ T4881] invoke_syscall+0x98/0x2b8 [ 107.864412][ T4881] el0_svc_common+0x138/0x258 [ 107.865643][ T4881] do_el0_svc+0x58/0x14c [ 107.866826][ T4881] el0_svc+0x78/0x1e0 [ 107.867948][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.869330][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.872420][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.881153][ T4881] CPU: 1 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.883197][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.885982][ T4881] Call trace: [ 107.886913][ T4881] dump_backtrace+0x0/0x43c [ 107.888164][ T4881] show_stack+0x2c/0x3c [ 107.889340][ T4881] __dump_stack+0x30/0x40 [ 107.890565][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.891902][ T4881] dump_stack+0x1c/0x5c [ 107.893021][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.894602][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.896002][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.897332][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.898646][ T4881] inet_sendmsg+0x154/0x284 [ 107.899934][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.901206][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.902583][ T4881] invoke_syscall+0x98/0x2b8 [ 107.903872][ T4881] el0_svc_common+0x138/0x258 [ 107.905152][ T4881] do_el0_svc+0x58/0x14c [ 107.906377][ T4881] el0_svc+0x78/0x1e0 [ 107.907447][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.908877][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.911442][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.914985][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.917232][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.920076][ T4881] Call trace: [ 107.920976][ T4881] dump_backtrace+0x0/0x43c [ 107.922258][ T4881] show_stack+0x2c/0x3c [ 107.923454][ T4881] __dump_stack+0x30/0x40 [ 107.924644][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.925918][ T4881] dump_stack+0x1c/0x5c [ 107.927047][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.928589][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.929982][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.931385][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.932640][ T4881] inet_sendmsg+0x154/0x284 [ 107.933916][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.935224][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.936571][ T4881] invoke_syscall+0x98/0x2b8 [ 107.937863][ T4881] el0_svc_common+0x138/0x258 [ 107.939152][ T4881] do_el0_svc+0x58/0x14c [ 107.940403][ T4881] el0_svc+0x78/0x1e0 [ 107.941545][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.942951][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 107.944676][ T4881] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 107.947818][ T4881] CPU: 0 PID: 4881 Comm: syz.0.20 Not tainted 5.15.185-syzkaller #0 [ 107.950082][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.952835][ T4881] Call trace: [ 107.953724][ T4881] dump_backtrace+0x0/0x43c [ 107.955038][ T4881] show_stack+0x2c/0x3c [ 107.956199][ T4881] __dump_stack+0x30/0x40 [ 107.957407][ T4881] dump_stack_lvl+0xf8/0x160 [ 107.958702][ T4881] dump_stack+0x1c/0x5c [ 107.959893][ T4881] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 107.961427][ T4881] dccp_xmit_packet+0x298/0x448 [ 107.962784][ T4881] dccp_write_xmit+0x118/0x1d0 [ 107.964138][ T4881] dccp_sendmsg+0x538/0x8a8 [ 107.965461][ T4881] inet_sendmsg+0x154/0x284 [ 107.966751][ T4881] __sys_sendto+0x2e8/0x3d8 [ 107.968072][ T4881] __arm64_sys_sendto+0xd8/0xf8 [ 107.969492][ T4881] invoke_syscall+0x98/0x2b8 [ 107.970823][ T4881] el0_svc_common+0x138/0x258 [ 107.972127][ T4881] do_el0_svc+0x58/0x14c [ 107.973428][ T4881] el0_svc+0x78/0x1e0 [ 107.974500][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 107.975989][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 108.000016][ T4883] dccp_xmit_packet: Payload too large (65475) for featneg. [ 108.018418][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.021529][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.023643][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.026467][ T4883] Call trace: [ 108.027389][ T4883] dump_backtrace+0x0/0x43c [ 108.028689][ T4883] show_stack+0x2c/0x3c [ 108.029783][ T4883] __dump_stack+0x30/0x40 [ 108.030991][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.032288][ T4883] dump_stack+0x1c/0x5c [ 108.033450][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.034968][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.036315][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.037758][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.039001][ T4883] inet_sendmsg+0x154/0x284 [ 108.040285][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.041510][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.042875][ T4883] invoke_syscall+0x98/0x2b8 [ 108.044263][ T4883] el0_svc_common+0x138/0x258 [ 108.045520][ T4883] do_el0_svc+0x58/0x14c [ 108.046718][ T4883] el0_svc+0x78/0x1e0 [ 108.047824][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.049156][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.050725][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.054585][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.056823][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.059656][ T4883] Call trace: [ 108.060548][ T4883] dump_backtrace+0x0/0x43c [ 108.061793][ T4883] show_stack+0x2c/0x3c [ 108.062964][ T4883] __dump_stack+0x30/0x40 [ 108.064194][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.065440][ T4883] dump_stack+0x1c/0x5c [ 108.066582][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.068065][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.069386][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.070705][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.071967][ T4883] inet_sendmsg+0x154/0x284 [ 108.073273][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.074527][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.075894][ T4883] invoke_syscall+0x98/0x2b8 [ 108.077176][ T4883] el0_svc_common+0x138/0x258 [ 108.078456][ T4883] do_el0_svc+0x58/0x14c [ 108.079603][ T4883] el0_svc+0x78/0x1e0 [ 108.080737][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.082099][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.083747][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.087018][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.089173][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.091966][ T4883] Call trace: [ 108.092883][ T4883] dump_backtrace+0x0/0x43c [ 108.094155][ T4883] show_stack+0x2c/0x3c [ 108.095340][ T4883] __dump_stack+0x30/0x40 [ 108.096558][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.097860][ T4883] dump_stack+0x1c/0x5c [ 108.098987][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.100730][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.102179][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.103529][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.104761][ T4883] inet_sendmsg+0x154/0x284 [ 108.106012][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.107295][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.108727][ T4883] invoke_syscall+0x98/0x2b8 [ 108.110010][ T4883] el0_svc_common+0x138/0x258 [ 108.111304][ T4883] do_el0_svc+0x58/0x14c [ 108.112482][ T4883] el0_svc+0x78/0x1e0 [ 108.113601][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.115030][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.117726][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.120993][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.123232][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.126022][ T4883] Call trace: [ 108.126932][ T4883] dump_backtrace+0x0/0x43c [ 108.128157][ T4883] show_stack+0x2c/0x3c [ 108.129359][ T4883] __dump_stack+0x30/0x40 [ 108.130622][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.131940][ T4883] dump_stack+0x1c/0x5c [ 108.133121][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.134699][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.136114][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.137424][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.138753][ T4883] inet_sendmsg+0x154/0x284 [ 108.139996][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.141219][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.142534][ T4883] invoke_syscall+0x98/0x2b8 [ 108.143801][ T4883] el0_svc_common+0x138/0x258 [ 108.145084][ T4883] do_el0_svc+0x58/0x14c [ 108.146238][ T4883] el0_svc+0x78/0x1e0 [ 108.147311][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.148709][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.150450][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.155307][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.157552][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.160188][ T4883] Call trace: [ 108.161060][ T4883] dump_backtrace+0x0/0x43c [ 108.162352][ T4883] show_stack+0x2c/0x3c [ 108.163544][ T4883] __dump_stack+0x30/0x40 [ 108.164731][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.166008][ T4883] dump_stack+0x1c/0x5c [ 108.167146][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.168690][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.169982][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.171287][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.172513][ T4883] inet_sendmsg+0x154/0x284 [ 108.173748][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.174998][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.176393][ T4883] invoke_syscall+0x98/0x2b8 [ 108.177683][ T4883] el0_svc_common+0x138/0x258 [ 108.178898][ T4883] do_el0_svc+0x58/0x14c [ 108.180120][ T4883] el0_svc+0x78/0x1e0 [ 108.181259][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.182658][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.185659][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.188825][ T4883] CPU: 1 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.191078][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.193793][ T4883] Call trace: [ 108.194654][ T4883] dump_backtrace+0x0/0x43c [ 108.195887][ T4883] show_stack+0x2c/0x3c [ 108.197072][ T4883] __dump_stack+0x30/0x40 [ 108.198338][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.199634][ T4883] dump_stack+0x1c/0x5c [ 108.200759][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.202292][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.203664][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.204989][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.206255][ T4883] inet_sendmsg+0x154/0x284 [ 108.207561][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.208838][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.210186][ T4883] invoke_syscall+0x98/0x2b8 [ 108.211496][ T4883] el0_svc_common+0x138/0x258 [ 108.212797][ T4883] do_el0_svc+0x58/0x14c [ 108.213946][ T4883] el0_svc+0x78/0x1e0 [ 108.215002][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.216454][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.219799][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.223050][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.225355][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.228039][ T4883] Call trace: [ 108.228979][ T4883] dump_backtrace+0x0/0x43c [ 108.230199][ T4883] show_stack+0x2c/0x3c [ 108.231273][ T4883] __dump_stack+0x30/0x40 [ 108.232466][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.233730][ T4883] dump_stack+0x1c/0x5c [ 108.234891][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.236368][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.237717][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.238999][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.240177][ T4883] inet_sendmsg+0x154/0x284 [ 108.241318][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.242563][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.243945][ T4883] invoke_syscall+0x98/0x2b8 [ 108.245309][ T4883] el0_svc_common+0x138/0x258 [ 108.246612][ T4883] do_el0_svc+0x58/0x14c [ 108.247791][ T4883] el0_svc+0x78/0x1e0 [ 108.248844][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.250216][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.252125][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.255925][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.258163][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.260948][ T4883] Call trace: [ 108.261861][ T4883] dump_backtrace+0x0/0x43c [ 108.263094][ T4883] show_stack+0x2c/0x3c [ 108.264302][ T4883] __dump_stack+0x30/0x40 [ 108.265469][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.266751][ T4883] dump_stack+0x1c/0x5c [ 108.267910][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.269462][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.270790][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.272099][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.273370][ T4883] inet_sendmsg+0x154/0x284 [ 108.274627][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.275839][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.277161][ T4883] invoke_syscall+0x98/0x2b8 [ 108.278485][ T4883] el0_svc_common+0x138/0x258 [ 108.279827][ T4883] do_el0_svc+0x58/0x14c [ 108.281058][ T4883] el0_svc+0x78/0x1e0 [ 108.282189][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.283505][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.285206][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.288235][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.290505][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.293211][ T4883] Call trace: [ 108.294151][ T4883] dump_backtrace+0x0/0x43c [ 108.295447][ T4883] show_stack+0x2c/0x3c [ 108.296651][ T4883] __dump_stack+0x30/0x40 [ 108.297844][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.299107][ T4883] dump_stack+0x1c/0x5c [ 108.300265][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.301716][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.303009][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.304306][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.305519][ T4883] inet_sendmsg+0x154/0x284 [ 108.306769][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.307986][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.309680][ T4883] invoke_syscall+0x98/0x2b8 [ 108.310907][ T4883] el0_svc_common+0x138/0x258 [ 108.312210][ T4883] do_el0_svc+0x58/0x14c [ 108.313394][ T4883] el0_svc+0x78/0x1e0 [ 108.314553][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.315935][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.317964][ T4883] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.321081][ T4883] CPU: 0 PID: 4883 Comm: syz.0.21 Not tainted 5.15.185-syzkaller #0 [ 108.323296][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.325987][ T4883] Call trace: [ 108.326898][ T4883] dump_backtrace+0x0/0x43c [ 108.328160][ T4883] show_stack+0x2c/0x3c [ 108.329284][ T4883] __dump_stack+0x30/0x40 [ 108.330449][ T4883] dump_stack_lvl+0xf8/0x160 [ 108.331709][ T4883] dump_stack+0x1c/0x5c [ 108.332859][ T4883] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.334404][ T4883] dccp_xmit_packet+0x298/0x448 [ 108.335730][ T4883] dccp_write_xmit+0x118/0x1d0 [ 108.337032][ T4883] dccp_sendmsg+0x538/0x8a8 [ 108.338286][ T4883] inet_sendmsg+0x154/0x284 [ 108.339520][ T4883] __sys_sendto+0x2e8/0x3d8 [ 108.340756][ T4883] __arm64_sys_sendto+0xd8/0xf8 [ 108.342153][ T4883] invoke_syscall+0x98/0x2b8 [ 108.343484][ T4883] el0_svc_common+0x138/0x258 [ 108.344750][ T4883] do_el0_svc+0x58/0x14c [ 108.345926][ T4883] el0_svc+0x78/0x1e0 [ 108.347069][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 108.348502][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 108.369901][ T4885] dccp_xmit_packet: Payload too large (65475) for featneg. [ 108.390000][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.393667][ T4885] CPU: 1 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.396031][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.399088][ T4885] Call trace: [ 108.400095][ T4885] dump_backtrace+0x0/0x43c [ 108.401479][ T4885] show_stack+0x2c/0x3c [ 108.402708][ T4885] __dump_stack+0x30/0x40 [ 108.403958][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.405315][ T4885] dump_stack+0x1c/0x5c [ 108.406473][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.408045][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.409416][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.410746][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.411952][ T4885] inet_sendmsg+0x154/0x284 [ 108.413240][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.414440][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.415801][ T4885] invoke_syscall+0x98/0x2b8 [ 108.417134][ T4885] el0_svc_common+0x138/0x258 [ 108.418620][ T4885] do_el0_svc+0x58/0x14c [ 108.419876][ T4885] el0_svc+0x78/0x1e0 [ 108.421028][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.422446][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.425126][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.428323][ T4885] CPU: 1 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.430505][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.433262][ T4885] Call trace: [ 108.434315][ T4885] dump_backtrace+0x0/0x43c [ 108.435640][ T4885] show_stack+0x2c/0x3c [ 108.436882][ T4885] __dump_stack+0x30/0x40 [ 108.438110][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.439450][ T4885] dump_stack+0x1c/0x5c [ 108.440632][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.442216][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.443596][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.444924][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.446163][ T4885] inet_sendmsg+0x154/0x284 [ 108.447464][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.448798][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.450195][ T4885] invoke_syscall+0x98/0x2b8 [ 108.451484][ T4885] el0_svc_common+0x138/0x258 [ 108.452834][ T4885] do_el0_svc+0x58/0x14c [ 108.454040][ T4885] el0_svc+0x78/0x1e0 [ 108.455132][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.456545][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.458271][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.461296][ T4885] CPU: 1 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.463653][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.466499][ T4885] Call trace: [ 108.467386][ T4885] dump_backtrace+0x0/0x43c [ 108.468604][ T4885] show_stack+0x2c/0x3c [ 108.469796][ T4885] __dump_stack+0x30/0x40 [ 108.471064][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.472398][ T4885] dump_stack+0x1c/0x5c [ 108.473543][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.475041][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.476415][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.477714][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.479007][ T4885] inet_sendmsg+0x154/0x284 [ 108.480272][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.481535][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.482913][ T4885] invoke_syscall+0x98/0x2b8 [ 108.484166][ T4885] el0_svc_common+0x138/0x258 [ 108.485433][ T4885] do_el0_svc+0x58/0x14c [ 108.486621][ T4885] el0_svc+0x78/0x1e0 [ 108.487778][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.489182][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.491910][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.496371][ T4885] CPU: 0 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.498620][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.501544][ T4885] Call trace: [ 108.502530][ T4885] dump_backtrace+0x0/0x43c [ 108.503872][ T4885] show_stack+0x2c/0x3c [ 108.505070][ T4885] __dump_stack+0x30/0x40 [ 108.506320][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.507607][ T4885] dump_stack+0x1c/0x5c [ 108.508783][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.510381][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.511669][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.512963][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.514239][ T4885] inet_sendmsg+0x154/0x284 [ 108.515467][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.516688][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.518049][ T4885] invoke_syscall+0x98/0x2b8 [ 108.519364][ T4885] el0_svc_common+0x138/0x258 [ 108.520633][ T4885] do_el0_svc+0x58/0x14c [ 108.521820][ T4885] el0_svc+0x78/0x1e0 [ 108.522891][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.524275][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.527636][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.530778][ T4885] CPU: 1 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.533040][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.535770][ T4885] Call trace: [ 108.536674][ T4885] dump_backtrace+0x0/0x43c [ 108.537993][ T4885] show_stack+0x2c/0x3c [ 108.539106][ T4885] __dump_stack+0x30/0x40 [ 108.540427][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.541752][ T4885] dump_stack+0x1c/0x5c [ 108.543048][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.544542][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.545886][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.547153][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.548396][ T4885] inet_sendmsg+0x154/0x284 [ 108.549654][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.550926][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.552335][ T4885] invoke_syscall+0x98/0x2b8 [ 108.553618][ T4885] el0_svc_common+0x138/0x258 [ 108.554984][ T4885] do_el0_svc+0x58/0x14c [ 108.556135][ T4885] el0_svc+0x78/0x1e0 [ 108.557250][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.558650][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.560942][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.565884][ T4885] CPU: 0 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.568072][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.570945][ T4885] Call trace: [ 108.571849][ T4885] dump_backtrace+0x0/0x43c [ 108.573159][ T4885] show_stack+0x2c/0x3c [ 108.574323][ T4885] __dump_stack+0x30/0x40 [ 108.575566][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.576814][ T4885] dump_stack+0x1c/0x5c [ 108.578045][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.579638][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.581025][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.582371][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.583637][ T4885] inet_sendmsg+0x154/0x284 [ 108.584921][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.586228][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.587582][ T4885] invoke_syscall+0x98/0x2b8 [ 108.588875][ T4885] el0_svc_common+0x138/0x258 [ 108.590170][ T4885] do_el0_svc+0x58/0x14c [ 108.591423][ T4885] el0_svc+0x78/0x1e0 [ 108.592513][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.593865][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.601175][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.605479][ T4885] CPU: 1 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.607635][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.610255][ T4885] Call trace: [ 108.611155][ T4885] dump_backtrace+0x0/0x43c [ 108.612360][ T4885] show_stack+0x2c/0x3c [ 108.613487][ T4885] __dump_stack+0x30/0x40 [ 108.614684][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.615952][ T4885] dump_stack+0x1c/0x5c [ 108.617062][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.618546][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.619817][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.621069][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.622345][ T4885] inet_sendmsg+0x154/0x284 [ 108.623776][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.624942][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.626440][ T4885] invoke_syscall+0x98/0x2b8 [ 108.627791][ T4885] el0_svc_common+0x138/0x258 [ 108.629073][ T4885] do_el0_svc+0x58/0x14c [ 108.630277][ T4885] el0_svc+0x78/0x1e0 [ 108.631423][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.632790][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.635829][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.638893][ T4885] CPU: 0 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.641053][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.643864][ T4885] Call trace: [ 108.644806][ T4885] dump_backtrace+0x0/0x43c [ 108.646012][ T4885] show_stack+0x2c/0x3c [ 108.647139][ T4885] __dump_stack+0x30/0x40 [ 108.648377][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.649613][ T4885] dump_stack+0x1c/0x5c [ 108.650799][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.652356][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.653669][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.655015][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.656252][ T4885] inet_sendmsg+0x154/0x284 [ 108.657531][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.658744][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.660084][ T4885] invoke_syscall+0x98/0x2b8 [ 108.661345][ T4885] el0_svc_common+0x138/0x258 [ 108.662637][ T4885] do_el0_svc+0x58/0x14c [ 108.663823][ T4885] el0_svc+0x78/0x1e0 [ 108.664929][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.666313][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.668261][ T4885] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.671401][ T4885] CPU: 0 PID: 4885 Comm: syz.0.22 Not tainted 5.15.185-syzkaller #0 [ 108.673660][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.676481][ T4885] Call trace: [ 108.677365][ T4885] dump_backtrace+0x0/0x43c [ 108.678613][ T4885] show_stack+0x2c/0x3c [ 108.679809][ T4885] __dump_stack+0x30/0x40 [ 108.681164][ T4885] dump_stack_lvl+0xf8/0x160 [ 108.682481][ T4885] dump_stack+0x1c/0x5c [ 108.683623][ T4885] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.685098][ T4885] dccp_xmit_packet+0x298/0x448 [ 108.686394][ T4885] dccp_write_xmit+0x118/0x1d0 [ 108.687696][ T4885] dccp_sendmsg+0x538/0x8a8 [ 108.688921][ T4885] inet_sendmsg+0x154/0x284 [ 108.690150][ T4885] __sys_sendto+0x2e8/0x3d8 [ 108.691474][ T4885] __arm64_sys_sendto+0xd8/0xf8 [ 108.692835][ T4885] invoke_syscall+0x98/0x2b8 [ 108.694110][ T4885] el0_svc_common+0x138/0x258 [ 108.695463][ T4885] do_el0_svc+0x58/0x14c [ 108.696649][ T4885] el0_svc+0x78/0x1e0 [ 108.697793][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 108.699182][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 108.719236][ T4887] dccp_xmit_packet: Payload too large (65475) for featneg. [ 108.735891][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.739020][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.741203][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.744006][ T4887] Call trace: [ 108.744952][ T4887] dump_backtrace+0x0/0x43c [ 108.746228][ T4887] show_stack+0x2c/0x3c [ 108.747439][ T4887] __dump_stack+0x30/0x40 [ 108.748689][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.749955][ T4887] dump_stack+0x1c/0x5c [ 108.751055][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.752549][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.753837][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.755074][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.756362][ T4887] inet_sendmsg+0x154/0x284 [ 108.757622][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.758823][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.760183][ T4887] invoke_syscall+0x98/0x2b8 [ 108.761486][ T4887] el0_svc_common+0x138/0x258 [ 108.762770][ T4887] do_el0_svc+0x58/0x14c [ 108.763962][ T4887] el0_svc+0x78/0x1e0 [ 108.765085][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.766491][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.768790][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.772060][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.774268][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.776996][ T4887] Call trace: [ 108.777899][ T4887] dump_backtrace+0x0/0x43c [ 108.779134][ T4887] show_stack+0x2c/0x3c [ 108.780270][ T4887] __dump_stack+0x30/0x40 [ 108.781544][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.782847][ T4887] dump_stack+0x1c/0x5c [ 108.783968][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.785484][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.786808][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.788122][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.789364][ T4887] inet_sendmsg+0x154/0x284 [ 108.790552][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.791870][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.793247][ T4887] invoke_syscall+0x98/0x2b8 [ 108.794487][ T4887] el0_svc_common+0x138/0x258 [ 108.795771][ T4887] do_el0_svc+0x58/0x14c [ 108.796929][ T4887] el0_svc+0x78/0x1e0 [ 108.797989][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.799352][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.801910][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.805165][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.807263][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.810076][ T4887] Call trace: [ 108.810942][ T4887] dump_backtrace+0x0/0x43c [ 108.812191][ T4887] show_stack+0x2c/0x3c [ 108.813356][ T4887] __dump_stack+0x30/0x40 [ 108.814623][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.815973][ T4887] dump_stack+0x1c/0x5c [ 108.817129][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.818741][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.820099][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.821409][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.822627][ T4887] inet_sendmsg+0x154/0x284 [ 108.823917][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.825179][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.826541][ T4887] invoke_syscall+0x98/0x2b8 [ 108.827769][ T4887] el0_svc_common+0x138/0x258 [ 108.829039][ T4887] do_el0_svc+0x58/0x14c [ 108.830222][ T4887] el0_svc+0x78/0x1e0 [ 108.831312][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.832732][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.834604][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.837749][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.839969][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.842922][ T4887] Call trace: [ 108.843787][ T4887] dump_backtrace+0x0/0x43c [ 108.845038][ T4887] show_stack+0x2c/0x3c [ 108.846154][ T4887] __dump_stack+0x30/0x40 [ 108.847300][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.848546][ T4887] dump_stack+0x1c/0x5c [ 108.849722][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.851224][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.852514][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.853819][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.855066][ T4887] inet_sendmsg+0x154/0x284 [ 108.856359][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.857586][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.858905][ T4887] invoke_syscall+0x98/0x2b8 [ 108.860108][ T4887] el0_svc_common+0x138/0x258 [ 108.861364][ T4887] do_el0_svc+0x58/0x14c [ 108.862523][ T4887] el0_svc+0x78/0x1e0 [ 108.863595][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.865023][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.866604][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.869767][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.869832][ T1614] device hsr_slave_0 left promiscuous mode [ 108.871788][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.871798][ T4887] Call trace: [ 108.871802][ T4887] dump_backtrace+0x0/0x43c [ 108.871816][ T4887] show_stack+0x2c/0x3c [ 108.879383][ T4887] __dump_stack+0x30/0x40 [ 108.880624][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.881947][ T4887] dump_stack+0x1c/0x5c [ 108.883105][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.884560][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.885891][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.887126][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.888407][ T4887] inet_sendmsg+0x154/0x284 [ 108.889665][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.890928][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.892251][ T4887] invoke_syscall+0x98/0x2b8 [ 108.893520][ T4887] el0_svc_common+0x138/0x258 [ 108.894735][ T4887] do_el0_svc+0x58/0x14c [ 108.895838][ T4887] el0_svc+0x78/0x1e0 [ 108.896891][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.898302][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.900602][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.903790][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.905934][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.908642][ T4887] Call trace: [ 108.909453][ T4887] dump_backtrace+0x0/0x43c [ 108.910632][ T4887] show_stack+0x2c/0x3c [ 108.911733][ T4887] __dump_stack+0x30/0x40 [ 108.912853][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.914046][ T4887] dump_stack+0x1c/0x5c [ 108.915175][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.916627][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.917928][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.919193][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.920459][ T4887] inet_sendmsg+0x154/0x284 [ 108.921669][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.922911][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.924286][ T4887] invoke_syscall+0x98/0x2b8 [ 108.925572][ T4887] el0_svc_common+0x138/0x258 [ 108.926920][ T4887] do_el0_svc+0x58/0x14c [ 108.928089][ T4887] el0_svc+0x78/0x1e0 [ 108.929200][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.930543][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.932163][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.935468][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.937566][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.940383][ T4887] Call trace: [ 108.941247][ T4887] dump_backtrace+0x0/0x43c [ 108.942519][ T4887] show_stack+0x2c/0x3c [ 108.943591][ T4887] __dump_stack+0x30/0x40 [ 108.944807][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.946154][ T4887] dump_stack+0x1c/0x5c [ 108.947360][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.948926][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.950256][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.951601][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.952781][ T4887] inet_sendmsg+0x154/0x284 [ 108.953999][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.955257][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.956572][ T4887] invoke_syscall+0x98/0x2b8 [ 108.957793][ T4887] el0_svc_common+0x138/0x258 [ 108.959079][ T4887] do_el0_svc+0x58/0x14c [ 108.960263][ T4887] el0_svc+0x78/0x1e0 [ 108.961378][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.962746][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.964351][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.967344][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 108.969534][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.972302][ T4887] Call trace: [ 108.973179][ T4887] dump_backtrace+0x0/0x43c [ 108.974602][ T4887] show_stack+0x2c/0x3c [ 108.975738][ T4887] __dump_stack+0x30/0x40 [ 108.976928][ T4887] dump_stack_lvl+0xf8/0x160 [ 108.978258][ T4887] dump_stack+0x1c/0x5c [ 108.979445][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 108.980959][ T4887] dccp_xmit_packet+0x298/0x448 [ 108.982337][ T4887] dccp_write_xmit+0x118/0x1d0 [ 108.983618][ T4887] dccp_sendmsg+0x538/0x8a8 [ 108.984851][ T4887] inet_sendmsg+0x154/0x284 [ 108.986112][ T4887] __sys_sendto+0x2e8/0x3d8 [ 108.987363][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 108.988649][ T4887] invoke_syscall+0x98/0x2b8 [ 108.989856][ T4887] el0_svc_common+0x138/0x258 [ 108.991095][ T4887] do_el0_svc+0x58/0x14c [ 108.992274][ T4887] el0_svc+0x78/0x1e0 [ 108.993339][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 108.994709][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 108.996806][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 108.997049][ T1614] device hsr_slave_1 left promiscuous mode [ 108.999940][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 109.003554][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.006284][ T4887] Call trace: [ 109.007206][ T4887] dump_backtrace+0x0/0x43c [ 109.008426][ T4887] show_stack+0x2c/0x3c [ 109.009557][ T4887] __dump_stack+0x30/0x40 [ 109.010808][ T4887] dump_stack_lvl+0xf8/0x160 [ 109.012153][ T4887] dump_stack+0x1c/0x5c [ 109.013283][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.014723][ T4887] dccp_xmit_packet+0x298/0x448 [ 109.016045][ T4887] dccp_write_xmit+0x118/0x1d0 [ 109.017328][ T4887] dccp_sendmsg+0x538/0x8a8 [ 109.018554][ T4887] inet_sendmsg+0x154/0x284 [ 109.019764][ T4887] __sys_sendto+0x2e8/0x3d8 [ 109.020979][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 109.022332][ T4887] invoke_syscall+0x98/0x2b8 [ 109.023603][ T4887] el0_svc_common+0x138/0x258 [ 109.024907][ T4887] do_el0_svc+0x58/0x14c [ 109.026064][ T4887] el0_svc+0x78/0x1e0 [ 109.027172][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 109.028489][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 109.030058][ T4887] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.033069][ T4887] CPU: 0 PID: 4887 Comm: syz.0.23 Not tainted 5.15.185-syzkaller #0 [ 109.035371][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.038152][ T4887] Call trace: [ 109.039017][ T4887] dump_backtrace+0x0/0x43c [ 109.040289][ T4887] show_stack+0x2c/0x3c [ 109.041509][ T4887] __dump_stack+0x30/0x40 [ 109.042715][ T4887] dump_stack_lvl+0xf8/0x160 [ 109.044000][ T4887] dump_stack+0x1c/0x5c [ 109.045117][ T4887] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.046586][ T4887] dccp_xmit_packet+0x298/0x448 [ 109.047995][ T4887] dccp_write_xmit+0x118/0x1d0 [ 109.049330][ T4887] dccp_sendmsg+0x538/0x8a8 [ 109.050592][ T4887] inet_sendmsg+0x154/0x284 [ 109.051791][ T4887] __sys_sendto+0x2e8/0x3d8 [ 109.053011][ T4887] __arm64_sys_sendto+0xd8/0xf8 [ 109.054346][ T4887] invoke_syscall+0x98/0x2b8 [ 109.055618][ T4887] el0_svc_common+0x138/0x258 [ 109.056964][ T4887] do_el0_svc+0x58/0x14c [ 109.058135][ T4887] el0_svc+0x78/0x1e0 [ 109.059280][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 109.060608][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 109.079018][ T4889] dccp_xmit_packet: Payload too large (65475) for featneg. [ 109.097216][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.100221][ T4889] CPU: 1 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.102516][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.105230][ T4889] Call trace: [ 109.106121][ T4889] dump_backtrace+0x0/0x43c [ 109.107402][ T4889] show_stack+0x2c/0x3c [ 109.108492][ T4889] __dump_stack+0x30/0x40 [ 109.109655][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.110866][ T4889] dump_stack+0x1c/0x5c [ 109.111958][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.113478][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.114815][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.116072][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.117405][ T4889] inet_sendmsg+0x154/0x284 [ 109.118616][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.119904][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.121247][ T4889] invoke_syscall+0x98/0x2b8 [ 109.122522][ T4889] el0_svc_common+0x138/0x258 [ 109.123873][ T4889] do_el0_svc+0x58/0x14c [ 109.124994][ T4889] el0_svc+0x78/0x1e0 [ 109.126072][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.127409][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.129132][ T1614] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 109.131268][ T1614] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 109.133241][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.136994][ T1614] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 109.137302][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.139135][ T1614] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 109.141273][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.145960][ T4889] Call trace: [ 109.146850][ T4889] dump_backtrace+0x0/0x43c [ 109.148120][ T4889] show_stack+0x2c/0x3c [ 109.149228][ T4889] __dump_stack+0x30/0x40 [ 109.150448][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.151790][ T4889] dump_stack+0x1c/0x5c [ 109.152901][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.154421][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.155785][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.157179][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.158338][ T4889] inet_sendmsg+0x154/0x284 [ 109.159509][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.160716][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.162100][ T4889] invoke_syscall+0x98/0x2b8 [ 109.163397][ T4889] el0_svc_common+0x138/0x258 [ 109.164784][ T4889] do_el0_svc+0x58/0x14c [ 109.165923][ T4889] el0_svc+0x78/0x1e0 [ 109.166996][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.168373][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.172012][ T1614] device bridge_slave_1 left promiscuous mode [ 109.172790][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.174121][ T1614] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.176825][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.180945][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.183651][ T4889] Call trace: [ 109.184618][ T4889] dump_backtrace+0x0/0x43c [ 109.185906][ T4889] show_stack+0x2c/0x3c [ 109.186980][ T4889] __dump_stack+0x30/0x40 [ 109.188212][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.189419][ T4889] dump_stack+0x1c/0x5c [ 109.190544][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.192068][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.193533][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.194815][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.196061][ T4889] inet_sendmsg+0x154/0x284 [ 109.197228][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.198399][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.199665][ T4889] invoke_syscall+0x98/0x2b8 [ 109.200861][ T4889] el0_svc_common+0x138/0x258 [ 109.202155][ T4889] do_el0_svc+0x58/0x14c [ 109.203291][ T4889] el0_svc+0x78/0x1e0 [ 109.204388][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.205738][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.207588][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.210861][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.213018][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.215771][ T4889] Call trace: [ 109.216667][ T4889] dump_backtrace+0x0/0x43c [ 109.217965][ T4889] show_stack+0x2c/0x3c [ 109.219162][ T4889] __dump_stack+0x30/0x40 [ 109.220282][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.221556][ T4889] dump_stack+0x1c/0x5c [ 109.222635][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.224088][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.225471][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.226821][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.228049][ T4889] inet_sendmsg+0x154/0x284 [ 109.229298][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.230500][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.231855][ T4889] invoke_syscall+0x98/0x2b8 [ 109.233151][ T4889] el0_svc_common+0x138/0x258 [ 109.234450][ T4889] do_el0_svc+0x58/0x14c [ 109.235614][ T4889] el0_svc+0x78/0x1e0 [ 109.236670][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.238053][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.239738][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.242848][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.245047][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.247779][ T4889] Call trace: [ 109.248683][ T4889] dump_backtrace+0x0/0x43c [ 109.249892][ T4889] show_stack+0x2c/0x3c [ 109.251032][ T4889] __dump_stack+0x30/0x40 [ 109.252248][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.253469][ T4889] dump_stack+0x1c/0x5c [ 109.254579][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.256069][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.257388][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.258655][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.259903][ T4889] inet_sendmsg+0x154/0x284 [ 109.261107][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.262295][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.263624][ T4889] invoke_syscall+0x98/0x2b8 [ 109.264825][ T4889] el0_svc_common+0x138/0x258 [ 109.266130][ T4889] do_el0_svc+0x58/0x14c [ 109.267382][ T4889] el0_svc+0x78/0x1e0 [ 109.268535][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.269896][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.271595][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.274732][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.276935][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.279684][ T4889] Call trace: [ 109.280541][ T4889] dump_backtrace+0x0/0x43c [ 109.281781][ T4889] show_stack+0x2c/0x3c [ 109.282993][ T4889] __dump_stack+0x30/0x40 [ 109.284174][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.285433][ T4889] dump_stack+0x1c/0x5c [ 109.286559][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.288084][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.289401][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.290721][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.291936][ T4889] inet_sendmsg+0x154/0x284 [ 109.293205][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.294406][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.295782][ T4889] invoke_syscall+0x98/0x2b8 [ 109.297036][ T4889] el0_svc_common+0x138/0x258 [ 109.298310][ T4889] do_el0_svc+0x58/0x14c [ 109.299493][ T4889] el0_svc+0x78/0x1e0 [ 109.300566][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.301952][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.303562][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.305199][ T1614] device bridge_slave_0 left promiscuous mode [ 109.306578][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.306593][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.306600][ T4889] Call trace: [ 109.306603][ T4889] dump_backtrace+0x0/0x43c [ 109.308523][ T1614] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.310539][ T4889] show_stack+0x2c/0x3c [ 109.310556][ T4889] __dump_stack+0x30/0x40 [ 109.310566][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.320980][ T4889] dump_stack+0x1c/0x5c [ 109.322151][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.323658][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.325013][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.326309][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.327503][ T4889] inet_sendmsg+0x154/0x284 [ 109.328744][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.330066][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.331374][ T4889] invoke_syscall+0x98/0x2b8 [ 109.332592][ T4889] el0_svc_common+0x138/0x258 [ 109.333837][ T4889] do_el0_svc+0x58/0x14c [ 109.335055][ T4889] el0_svc+0x78/0x1e0 [ 109.336189][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.337558][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.339250][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.342170][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.344377][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.347283][ T4889] Call trace: [ 109.348154][ T4889] dump_backtrace+0x0/0x43c [ 109.349343][ T4889] show_stack+0x2c/0x3c [ 109.350460][ T4889] __dump_stack+0x30/0x40 [ 109.351630][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.352890][ T4889] dump_stack+0x1c/0x5c [ 109.354073][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.355613][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.356951][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.358224][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.359470][ T4889] inet_sendmsg+0x154/0x284 [ 109.360674][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.361864][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.363167][ T4889] invoke_syscall+0x98/0x2b8 [ 109.364408][ T4889] el0_svc_common+0x138/0x258 [ 109.365682][ T4889] do_el0_svc+0x58/0x14c [ 109.366863][ T4889] el0_svc+0x78/0x1e0 [ 109.367963][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.369366][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.370950][ T4889] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.374152][ T4889] CPU: 0 PID: 4889 Comm: syz.0.24 Not tainted 5.15.185-syzkaller #0 [ 109.376381][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.379058][ T4889] Call trace: [ 109.379964][ T4889] dump_backtrace+0x0/0x43c [ 109.381186][ T4889] show_stack+0x2c/0x3c [ 109.382305][ T4889] __dump_stack+0x30/0x40 [ 109.383531][ T4889] dump_stack_lvl+0xf8/0x160 [ 109.384922][ T4889] dump_stack+0x1c/0x5c [ 109.386110][ T4889] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.387632][ T4889] dccp_xmit_packet+0x298/0x448 [ 109.388968][ T4889] dccp_write_xmit+0x118/0x1d0 [ 109.390278][ T4889] dccp_sendmsg+0x538/0x8a8 [ 109.391560][ T4889] inet_sendmsg+0x154/0x284 [ 109.392800][ T4889] __sys_sendto+0x2e8/0x3d8 [ 109.394121][ T4889] __arm64_sys_sendto+0xd8/0xf8 [ 109.395418][ T4889] invoke_syscall+0x98/0x2b8 [ 109.396683][ T4889] el0_svc_common+0x138/0x258 [ 109.398013][ T4889] do_el0_svc+0x58/0x14c [ 109.399155][ T4889] el0_svc+0x78/0x1e0 [ 109.400237][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 109.401637][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 109.428060][ T4891] dccp_xmit_packet: Payload too large (65475) for featneg. [ 109.443948][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.447089][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.449294][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.451987][ T4891] Call trace: [ 109.452856][ T4891] dump_backtrace+0x0/0x43c [ 109.454190][ T4891] show_stack+0x2c/0x3c [ 109.455359][ T4891] __dump_stack+0x30/0x40 [ 109.456532][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.457817][ T4891] dump_stack+0x1c/0x5c [ 109.458984][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.460516][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.461911][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.463194][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.464733][ T4891] inet_sendmsg+0x154/0x284 [ 109.466117][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.467368][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.468763][ T4891] invoke_syscall+0x98/0x2b8 [ 109.470002][ T4891] el0_svc_common+0x138/0x258 [ 109.471319][ T4891] do_el0_svc+0x58/0x14c [ 109.472479][ T4891] el0_svc+0x78/0x1e0 [ 109.473633][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.475059][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.478530][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.481715][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.484093][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.486890][ T4891] Call trace: [ 109.487855][ T4891] dump_backtrace+0x0/0x43c [ 109.489114][ T4891] show_stack+0x2c/0x3c [ 109.490319][ T4891] __dump_stack+0x30/0x40 [ 109.491525][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.492729][ T4891] dump_stack+0x1c/0x5c [ 109.493881][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.495391][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.496671][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.497960][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.499249][ T4891] inet_sendmsg+0x154/0x284 [ 109.500452][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.501758][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.503102][ T4891] invoke_syscall+0x98/0x2b8 [ 109.504403][ T4891] el0_svc_common+0x138/0x258 [ 109.505709][ T4891] do_el0_svc+0x58/0x14c [ 109.506910][ T4891] el0_svc+0x78/0x1e0 [ 109.507994][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.509395][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.510999][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.514059][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.516242][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.519045][ T4891] Call trace: [ 109.519962][ T4891] dump_backtrace+0x0/0x43c [ 109.521217][ T4891] show_stack+0x2c/0x3c [ 109.522394][ T4891] __dump_stack+0x30/0x40 [ 109.523528][ T1614] device veth1_macvtap left promiscuous mode [ 109.523604][ T1614] device veth0_macvtap left promiscuous mode [ 109.525220][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.525236][ T4891] dump_stack+0x1c/0x5c [ 109.525244][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.525257][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.527080][ T1614] device veth1_vlan left promiscuous mode [ 109.528246][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.529419][ T1614] device veth0_vlan left promiscuous mode [ 109.530781][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.537887][ T4891] inet_sendmsg+0x154/0x284 [ 109.539150][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.540394][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.541738][ T4891] invoke_syscall+0x98/0x2b8 [ 109.543016][ T4891] el0_svc_common+0x138/0x258 [ 109.544246][ T4891] do_el0_svc+0x58/0x14c [ 109.545430][ T4891] el0_svc+0x78/0x1e0 [ 109.546542][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.547871][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.549501][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.552678][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.554768][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.557560][ T4891] Call trace: [ 109.558497][ T4891] dump_backtrace+0x0/0x43c [ 109.559832][ T4891] show_stack+0x2c/0x3c [ 109.561050][ T4891] __dump_stack+0x30/0x40 [ 109.562241][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.563592][ T4891] dump_stack+0x1c/0x5c [ 109.564728][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.566228][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.567560][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.569013][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.570353][ T4891] inet_sendmsg+0x154/0x284 [ 109.571718][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.572985][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.574431][ T4891] invoke_syscall+0x98/0x2b8 [ 109.575681][ T4891] el0_svc_common+0x138/0x258 [ 109.577010][ T4891] do_el0_svc+0x58/0x14c [ 109.578208][ T4891] el0_svc+0x78/0x1e0 [ 109.579342][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.580699][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.582376][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.585696][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.587934][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.590701][ T4891] Call trace: [ 109.591631][ T4891] dump_backtrace+0x0/0x43c [ 109.592920][ T4891] show_stack+0x2c/0x3c [ 109.594083][ T4891] __dump_stack+0x30/0x40 [ 109.595319][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.596617][ T4891] dump_stack+0x1c/0x5c [ 109.597764][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.599339][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.600702][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.602064][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.603329][ T4891] inet_sendmsg+0x154/0x284 [ 109.604592][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.605860][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.607206][ T4891] invoke_syscall+0x98/0x2b8 [ 109.608537][ T4891] el0_svc_common+0x138/0x258 [ 109.609881][ T4891] do_el0_svc+0x58/0x14c [ 109.611052][ T4891] el0_svc+0x78/0x1e0 [ 109.612191][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.613550][ T4107] Bluetooth: hci0: command 0x0419 tx timeout [ 109.613631][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.619265][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.622557][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.624896][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.627743][ T4891] Call trace: [ 109.628710][ T4891] dump_backtrace+0x0/0x43c [ 109.630024][ T4891] show_stack+0x2c/0x3c [ 109.631188][ T4891] __dump_stack+0x30/0x40 [ 109.632464][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.633774][ T4891] dump_stack+0x1c/0x5c [ 109.635031][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.636662][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.638005][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.639365][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.640665][ T4891] inet_sendmsg+0x154/0x284 [ 109.641929][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.643184][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.644511][ T4891] invoke_syscall+0x98/0x2b8 [ 109.645852][ T4891] el0_svc_common+0x138/0x258 [ 109.647198][ T4891] do_el0_svc+0x58/0x14c [ 109.648437][ T4891] el0_svc+0x78/0x1e0 [ 109.649633][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.651070][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.652839][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.658851][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.661114][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.663784][ T4891] Call trace: [ 109.664768][ T4891] dump_backtrace+0x0/0x43c [ 109.666073][ T4891] show_stack+0x2c/0x3c [ 109.667236][ T4891] __dump_stack+0x30/0x40 [ 109.668440][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.669691][ T4891] dump_stack+0x1c/0x5c [ 109.670859][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.672402][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.673782][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.675193][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.676388][ T4891] inet_sendmsg+0x154/0x284 [ 109.677685][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.678910][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.680244][ T4891] invoke_syscall+0x98/0x2b8 [ 109.681502][ T4891] el0_svc_common+0x138/0x258 [ 109.682794][ T4891] do_el0_svc+0x58/0x14c [ 109.683990][ T4891] el0_svc+0x78/0x1e0 [ 109.685130][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.686506][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.690621][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.693980][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.696251][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.699072][ T4891] Call trace: [ 109.699947][ T4891] dump_backtrace+0x0/0x43c [ 109.701219][ T4891] show_stack+0x2c/0x3c [ 109.702348][ T4891] __dump_stack+0x30/0x40 [ 109.703641][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.704934][ T4891] dump_stack+0x1c/0x5c [ 109.706078][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.707605][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.708970][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.710357][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.711617][ T4891] inet_sendmsg+0x154/0x284 [ 109.712877][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.714313][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.715736][ T4891] invoke_syscall+0x98/0x2b8 [ 109.717061][ T4891] el0_svc_common+0x138/0x258 [ 109.718402][ T4891] do_el0_svc+0x58/0x14c [ 109.719548][ T4891] el0_svc+0x78/0x1e0 [ 109.720679][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.722167][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.723824][ T4891] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.727050][ T4891] CPU: 0 PID: 4891 Comm: syz.0.25 Not tainted 5.15.185-syzkaller #0 [ 109.729305][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.732077][ T4891] Call trace: [ 109.732948][ T4891] dump_backtrace+0x0/0x43c [ 109.734152][ T4891] show_stack+0x2c/0x3c [ 109.735334][ T4891] __dump_stack+0x30/0x40 [ 109.736485][ T4891] dump_stack_lvl+0xf8/0x160 [ 109.737679][ T4891] dump_stack+0x1c/0x5c [ 109.738896][ T4891] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.740416][ T4891] dccp_xmit_packet+0x298/0x448 [ 109.741759][ T4891] dccp_write_xmit+0x118/0x1d0 [ 109.743107][ T4891] dccp_sendmsg+0x538/0x8a8 [ 109.744446][ T4891] inet_sendmsg+0x154/0x284 [ 109.745708][ T4891] __sys_sendto+0x2e8/0x3d8 [ 109.746946][ T4891] __arm64_sys_sendto+0xd8/0xf8 [ 109.748297][ T4891] invoke_syscall+0x98/0x2b8 [ 109.749576][ T4891] el0_svc_common+0x138/0x258 [ 109.750915][ T4891] do_el0_svc+0x58/0x14c [ 109.752169][ T4891] el0_svc+0x78/0x1e0 [ 109.753292][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 109.754719][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 109.804866][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.808287][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 109.810564][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.813422][ T4893] Call trace: [ 109.814382][ T4893] dump_backtrace+0x0/0x43c [ 109.815723][ T4893] show_stack+0x2c/0x3c [ 109.816863][ T4893] __dump_stack+0x30/0x40 [ 109.818102][ T4893] dump_stack_lvl+0xf8/0x160 [ 109.819377][ T4893] dump_stack+0x1c/0x5c [ 109.820589][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.822186][ T4893] dccp_xmit_packet+0x298/0x448 [ 109.823518][ T4893] dccp_write_xmit+0x118/0x1d0 [ 109.824891][ T4893] dccp_sendmsg+0x538/0x8a8 [ 109.826187][ T4893] inet_sendmsg+0x154/0x284 [ 109.827476][ T4893] __sys_sendto+0x2e8/0x3d8 [ 109.828741][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 109.830077][ T4893] invoke_syscall+0x98/0x2b8 [ 109.831412][ T4893] el0_svc_common+0x138/0x258 [ 109.832734][ T4893] do_el0_svc+0x58/0x14c [ 109.833944][ T4893] el0_svc+0x78/0x1e0 [ 109.835080][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 109.836537][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 109.839084][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.842230][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 109.844422][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.847246][ T4893] Call trace: [ 109.848170][ T4893] dump_backtrace+0x0/0x43c [ 109.849450][ T4893] show_stack+0x2c/0x3c [ 109.850643][ T4893] __dump_stack+0x30/0x40 [ 109.851849][ T4893] dump_stack_lvl+0xf8/0x160 [ 109.853156][ T4893] dump_stack+0x1c/0x5c [ 109.854307][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.855851][ T4893] dccp_xmit_packet+0x298/0x448 [ 109.857210][ T4893] dccp_write_xmit+0x118/0x1d0 [ 109.858560][ T4893] dccp_sendmsg+0x538/0x8a8 [ 109.859829][ T4893] inet_sendmsg+0x154/0x284 [ 109.861135][ T4893] __sys_sendto+0x2e8/0x3d8 [ 109.862347][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 109.863688][ T4893] invoke_syscall+0x98/0x2b8 [ 109.864996][ T4893] el0_svc_common+0x138/0x258 [ 109.866367][ T4893] do_el0_svc+0x58/0x14c [ 109.867490][ T4893] el0_svc+0x78/0x1e0 [ 109.868602][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 109.869983][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 109.872401][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.875631][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 109.877794][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.880535][ T4893] Call trace: [ 109.881422][ T4893] dump_backtrace+0x0/0x43c [ 109.882683][ T4893] show_stack+0x2c/0x3c [ 109.883869][ T4893] __dump_stack+0x30/0x40 [ 109.885103][ T4893] dump_stack_lvl+0xf8/0x160 [ 109.886350][ T4893] dump_stack+0x1c/0x5c [ 109.887519][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.889102][ T4893] dccp_xmit_packet+0x298/0x448 [ 109.890433][ T4893] dccp_write_xmit+0x118/0x1d0 [ 109.891784][ T4893] dccp_sendmsg+0x538/0x8a8 [ 109.893033][ T4893] inet_sendmsg+0x154/0x284 [ 109.894368][ T4893] __sys_sendto+0x2e8/0x3d8 [ 109.895624][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 109.896984][ T4893] invoke_syscall+0x98/0x2b8 [ 109.898319][ T4893] el0_svc_common+0x138/0x258 [ 109.899665][ T4893] do_el0_svc+0x58/0x14c [ 109.900913][ T4893] el0_svc+0x78/0x1e0 [ 109.902059][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 109.903490][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 109.907016][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.910273][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 109.912528][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.915364][ T4893] Call trace: [ 109.916294][ T4893] dump_backtrace+0x0/0x43c [ 109.917563][ T4893] show_stack+0x2c/0x3c [ 109.918700][ T4893] __dump_stack+0x30/0x40 [ 109.919929][ T4893] dump_stack_lvl+0xf8/0x160 [ 109.921226][ T4893] dump_stack+0x1c/0x5c [ 109.922357][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.923903][ T4893] dccp_xmit_packet+0x298/0x448 [ 109.925288][ T4893] dccp_write_xmit+0x118/0x1d0 [ 109.926655][ T4893] dccp_sendmsg+0x538/0x8a8 [ 109.927920][ T4893] inet_sendmsg+0x154/0x284 [ 109.929222][ T4893] __sys_sendto+0x2e8/0x3d8 [ 109.930582][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 109.931945][ T4893] invoke_syscall+0x98/0x2b8 [ 109.933230][ T4893] el0_svc_common+0x138/0x258 [ 109.934552][ T4893] do_el0_svc+0x58/0x14c [ 109.935733][ T4893] el0_svc+0x78/0x1e0 [ 109.936846][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 109.938263][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 109.941698][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.944983][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 109.946245][ T1614] team0 (unregistering): Port device team_slave_1 removed [ 109.947196][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.947207][ T4893] Call trace: [ 109.947211][ T4893] dump_backtrace+0x0/0x43c [ 109.954108][ T4893] show_stack+0x2c/0x3c [ 109.955328][ T4893] __dump_stack+0x30/0x40 [ 109.956577][ T4893] dump_stack_lvl+0xf8/0x160 [ 109.957855][ T4893] dump_stack+0x1c/0x5c [ 109.958962][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.960538][ T4893] dccp_xmit_packet+0x298/0x448 [ 109.961924][ T4893] dccp_write_xmit+0x118/0x1d0 [ 109.963229][ T4893] dccp_sendmsg+0x538/0x8a8 [ 109.964508][ T4893] inet_sendmsg+0x154/0x284 [ 109.965752][ T4893] __sys_sendto+0x2e8/0x3d8 [ 109.967085][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 109.968434][ T4893] invoke_syscall+0x98/0x2b8 [ 109.969720][ T4893] el0_svc_common+0x138/0x258 [ 109.971100][ T4893] do_el0_svc+0x58/0x14c [ 109.972399][ T4893] el0_svc+0x78/0x1e0 [ 109.973540][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 109.974890][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 109.976585][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 109.979213][ T1614] team0 (unregistering): Port device team_slave_0 removed [ 109.979896][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 109.983999][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.986831][ T4893] Call trace: [ 109.987710][ T4893] dump_backtrace+0x0/0x43c [ 109.988971][ T4893] show_stack+0x2c/0x3c [ 109.990171][ T4893] __dump_stack+0x30/0x40 [ 109.991402][ T4893] dump_stack_lvl+0xf8/0x160 [ 109.992652][ T4893] dump_stack+0x1c/0x5c [ 109.993771][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 109.995243][ T4893] dccp_xmit_packet+0x298/0x448 [ 109.996628][ T4893] dccp_write_xmit+0x118/0x1d0 [ 109.997962][ T4893] dccp_sendmsg+0x538/0x8a8 [ 109.999191][ T4893] inet_sendmsg+0x154/0x284 [ 110.000445][ T4893] __sys_sendto+0x2e8/0x3d8 [ 110.001700][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 110.003025][ T4893] invoke_syscall+0x98/0x2b8 [ 110.004316][ T4893] el0_svc_common+0x138/0x258 [ 110.005631][ T4893] do_el0_svc+0x58/0x14c [ 110.006852][ T4893] el0_svc+0x78/0x1e0 [ 110.007916][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 110.009330][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 110.010996][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.012354][ T1614] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 110.014182][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 110.018570][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.021374][ T4893] Call trace: [ 110.022282][ T4893] dump_backtrace+0x0/0x43c [ 110.023518][ T4893] show_stack+0x2c/0x3c [ 110.024656][ T4893] __dump_stack+0x30/0x40 [ 110.025903][ T4893] dump_stack_lvl+0xf8/0x160 [ 110.027229][ T4893] dump_stack+0x1c/0x5c [ 110.028378][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.029875][ T4893] dccp_xmit_packet+0x298/0x448 [ 110.031214][ T4893] dccp_write_xmit+0x118/0x1d0 [ 110.032512][ T4893] dccp_sendmsg+0x538/0x8a8 [ 110.033774][ T4893] inet_sendmsg+0x154/0x284 [ 110.035030][ T4893] __sys_sendto+0x2e8/0x3d8 [ 110.036262][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 110.037612][ T4893] invoke_syscall+0x98/0x2b8 [ 110.038981][ T4893] el0_svc_common+0x138/0x258 [ 110.040339][ T4893] do_el0_svc+0x58/0x14c [ 110.041511][ T4893] el0_svc+0x78/0x1e0 [ 110.042681][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 110.044153][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 110.045725][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.048862][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 110.050997][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.053707][ T4893] Call trace: [ 110.054616][ T4893] dump_backtrace+0x0/0x43c [ 110.055851][ T4893] show_stack+0x2c/0x3c [ 110.056996][ T4893] __dump_stack+0x30/0x40 [ 110.058223][ T4893] dump_stack_lvl+0xf8/0x160 [ 110.059478][ T4893] dump_stack+0x1c/0x5c [ 110.060614][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.062172][ T4893] dccp_xmit_packet+0x298/0x448 [ 110.063473][ T4893] dccp_write_xmit+0x118/0x1d0 [ 110.064767][ T4893] dccp_sendmsg+0x538/0x8a8 [ 110.065976][ T4893] inet_sendmsg+0x154/0x284 [ 110.067134][ T4893] __sys_sendto+0x2e8/0x3d8 [ 110.068405][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 110.069837][ T4893] invoke_syscall+0x98/0x2b8 [ 110.071089][ T4893] el0_svc_common+0x138/0x258 [ 110.072394][ T4893] do_el0_svc+0x58/0x14c [ 110.073531][ T4893] el0_svc+0x78/0x1e0 [ 110.074612][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 110.075922][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 110.077633][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.080854][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 110.083080][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.085996][ T4893] Call trace: [ 110.086945][ T4893] dump_backtrace+0x0/0x43c [ 110.088243][ T4893] show_stack+0x2c/0x3c [ 110.089398][ T4893] __dump_stack+0x30/0x40 [ 110.090590][ T4893] dump_stack_lvl+0xf8/0x160 [ 110.091874][ T4893] dump_stack+0x1c/0x5c [ 110.093001][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.094514][ T4893] dccp_xmit_packet+0x298/0x448 [ 110.095933][ T4893] dccp_write_xmit+0x118/0x1d0 [ 110.097299][ T4893] dccp_sendmsg+0x538/0x8a8 [ 110.098528][ T4893] inet_sendmsg+0x154/0x284 [ 110.099753][ T4893] __sys_sendto+0x2e8/0x3d8 [ 110.101038][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 110.102447][ T4893] invoke_syscall+0x98/0x2b8 [ 110.103745][ T4893] el0_svc_common+0x138/0x258 [ 110.105054][ T4893] do_el0_svc+0x58/0x14c [ 110.106290][ T4893] el0_svc+0x78/0x1e0 [ 110.107393][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 110.108773][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 110.110875][ T4893] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.114198][ T4893] CPU: 0 PID: 4893 Comm: syz.0.26 Not tainted 5.15.185-syzkaller #0 [ 110.116430][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.119209][ T4893] Call trace: [ 110.120111][ T4893] dump_backtrace+0x0/0x43c [ 110.121379][ T4893] show_stack+0x2c/0x3c [ 110.122482][ T4893] __dump_stack+0x30/0x40 [ 110.123658][ T4893] dump_stack_lvl+0xf8/0x160 [ 110.124889][ T4893] dump_stack+0x1c/0x5c [ 110.126091][ T4893] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.127614][ T4893] dccp_xmit_packet+0x298/0x448 [ 110.128980][ T4893] dccp_write_xmit+0x118/0x1d0 [ 110.130269][ T4893] dccp_sendmsg+0x538/0x8a8 [ 110.131512][ T4893] inet_sendmsg+0x154/0x284 [ 110.132773][ T4893] __sys_sendto+0x2e8/0x3d8 [ 110.133980][ T4893] __arm64_sys_sendto+0xd8/0xf8 [ 110.135407][ T4893] invoke_syscall+0x98/0x2b8 [ 110.136706][ T4893] el0_svc_common+0x138/0x258 [ 110.138029][ T4893] do_el0_svc+0x58/0x14c [ 110.139180][ T4893] el0_svc+0x78/0x1e0 [ 110.140308][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 110.141665][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 110.147403][ T1614] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 110.181135][ T4895] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.184683][ T4895] CPU: 1 PID: 4895 Comm: syz.0.27 Not tainted 5.15.185-syzkaller #0 [ 110.186889][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.189650][ T4895] Call trace: [ 110.190589][ T4895] dump_backtrace+0x0/0x43c [ 110.191900][ T4895] show_stack+0x2c/0x3c [ 110.193100][ T4895] __dump_stack+0x30/0x40 [ 110.194259][ T4895] dump_stack_lvl+0xf8/0x160 [ 110.195537][ T4895] dump_stack+0x1c/0x5c [ 110.196736][ T4895] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.198329][ T4895] dccp_xmit_packet+0x298/0x448 [ 110.199705][ T4895] dccp_write_xmit+0x118/0x1d0 [ 110.201060][ T4895] dccp_sendmsg+0x538/0x8a8 [ 110.202417][ T4895] inet_sendmsg+0x154/0x284 [ 110.203624][ T4895] __sys_sendto+0x2e8/0x3d8 [ 110.204891][ T4895] __arm64_sys_sendto+0xd8/0xf8 [ 110.206331][ T4895] invoke_syscall+0x98/0x2b8 [ 110.207641][ T4895] el0_svc_common+0x138/0x258 [ 110.208930][ T4895] do_el0_svc+0x58/0x14c [ 110.210090][ T4895] el0_svc+0x78/0x1e0 [ 110.211237][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 110.212707][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 110.216806][ T4895] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.219920][ T4895] CPU: 1 PID: 4895 Comm: syz.0.27 Not tainted 5.15.185-syzkaller #0 [ 110.222089][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.224906][ T4895] Call trace: [ 110.225824][ T4895] dump_backtrace+0x0/0x43c [ 110.227094][ T4895] show_stack+0x2c/0x3c [ 110.228323][ T4895] __dump_stack+0x30/0x40 [ 110.229609][ T4895] dump_stack_lvl+0xf8/0x160 [ 110.230951][ T4895] dump_stack+0x1c/0x5c [ 110.232191][ T4895] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.233810][ T4895] dccp_xmit_packet+0x298/0x448 [ 110.235193][ T4895] dccp_write_xmit+0x118/0x1d0 [ 110.236591][ T4895] dccp_sendmsg+0x538/0x8a8 [ 110.237815][ T4895] inet_sendmsg+0x154/0x284 [ 110.239077][ T4895] __sys_sendto+0x2e8/0x3d8 [ 110.240391][ T4895] __arm64_sys_sendto+0xd8/0xf8 [ 110.241787][ T4895] invoke_syscall+0x98/0x2b8 [ 110.243108][ T4895] el0_svc_common+0x138/0x258 [ 110.244456][ T4895] do_el0_svc+0x58/0x14c [ 110.245644][ T4895] el0_svc+0x78/0x1e0 [ 110.246732][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 110.248133][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 110.250843][ T4895] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.254109][ T4895] CPU: 1 PID: 4895 Comm: syz.0.27 Not tainted 5.15.185-syzkaller #0 [ 110.256346][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.259160][ T4895] Call trace: [ 110.259997][ T4895] dump_backtrace+0x0/0x43c [ 110.261272][ T4895] show_stack+0x2c/0x3c [ 110.262415][ T4895] __dump_stack+0x30/0x40 [ 110.263613][ T4895] dump_stack_lvl+0xf8/0x160 [ 110.264907][ T4895] dump_stack+0x1c/0x5c [ 110.266033][ T4895] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.267495][ T4895] dccp_xmit_packet+0x298/0x448 [ 110.268776][ T4895] dccp_write_xmit+0x118/0x1d0 [ 110.270108][ T4895] dccp_sendmsg+0x538/0x8a8 [ 110.271317][ T4895] inet_sendmsg+0x154/0x284 [ 110.272535][ T4895] __sys_sendto+0x2e8/0x3d8 [ 110.273720][ T4895] __arm64_sys_sendto+0xd8/0xf8 [ 110.274999][ T4895] invoke_syscall+0x98/0x2b8 [ 110.276254][ T4895] el0_svc_common+0x138/0x258 [ 110.277563][ T4895] do_el0_svc+0x58/0x14c [ 110.278711][ T4895] el0_svc+0x78/0x1e0 [ 110.279823][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 110.281016][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 110.282549][ T4895] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.285219][ T4895] CPU: 1 PID: 4895 Comm: syz.0.27 Not tainted 5.15.185-syzkaller #0 [ 110.287009][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.289287][ T4895] Call trace: [ 110.290061][ T4895] dump_backtrace+0x0/0x43c [ 110.291132][ T4895] show_stack+0x2c/0x3c [ 110.292080][ T4895] __dump_stack+0x30/0x40 [ 110.293170][ T4895] dump_stack_lvl+0xf8/0x160 [ 110.294433][ T4895] dump_stack+0x1c/0x5c [ 110.295573][ T4895] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.295731][ T1614] bond0 (unregistering): Released all slaves [ 110.297041][ T4895] dccp_xmit_packet+0x298/0x448 [ 110.297057][ T4895] dccp_write_xmit+0x118/0x1d0 [ 110.301565][ T4895] dccp_sendmsg+0x538/0x8a8 [ 110.302885][ T4895] inet_sendmsg+0x154/0x284 [ 110.304168][ T4895] __sys_sendto+0x2e8/0x3d8 [ 110.305409][ T4895] __arm64_sys_sendto+0xd8/0xf8 [ 110.306810][ T4895] invoke_syscall+0x98/0x2b8 [ 110.308197][ T4895] el0_svc_common+0x138/0x258 [ 110.309527][ T4895] do_el0_svc+0x58/0x14c [ 110.310662][ T4895] el0_svc+0x78/0x1e0 [ 110.311803][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 110.313268][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 110.315877][ T4895] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.318975][ T4895] CPU: 1 PID: 4895 Comm: syz.0.27 Not tainted 5.15.185-syzkaller #0 [ 110.321177][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.323897][ T4895] Call trace: [ 110.324780][ T4895] dump_backtrace+0x0/0x43c [ 110.326009][ T4895] show_stack+0x2c/0x3c [ 110.327167][ T4895] __dump_stack+0x30/0x40 [ 110.328376][ T4895] dump_stack_lvl+0xf8/0x160 [ 110.329685][ T4895] dump_stack+0x1c/0x5c [ 110.330785][ T4895] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.332347][ T4895] dccp_xmit_packet+0x298/0x448 [ 110.333683][ T4895] dccp_write_xmit+0x118/0x1d0 [ 110.334984][ T4895] dccp_sendmsg+0x538/0x8a8 [ 110.336230][ T4895] inet_sendmsg+0x154/0x284 [ 110.337411][ T4895] __sys_sendto+0x2e8/0x3d8 [ 110.338707][ T4895] __arm64_sys_sendto+0xd8/0xf8 [ 110.340034][ T4895] invoke_syscall+0x98/0x2b8 [ 110.341293][ T4895] el0_svc_common+0x138/0x258 [ 110.342597][ T4895] do_el0_svc+0x58/0x14c [ 110.343735][ T4895] el0_svc+0x78/0x1e0 [ 110.344827][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 110.346222][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 110.348505][ T4895] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.351618][ T4895] CPU: 1 PID: 4895 Comm: syz.0.27 Not tainted 5.15.185-syzkaller #0 [ 110.353878][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.356770][ T4895] Call trace: [ 110.357648][ T4895] dump_backtrace+0x0/0x43c [ 110.358898][ T4895] show_stack+0x2c/0x3c [ 110.360066][ T4895] __dump_stack+0x30/0x40 [ 110.361285][ T4895] dump_stack_lvl+0xf8/0x160 [ 110.362603][ T4895] dump_stack+0x1c/0x5c [ 110.363788][ T4895] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.365299][ T4895] dccp_xmit_packet+0x298/0x448 [ 110.366644][ T4895] dccp_write_xmit+0x118/0x1d0 [ 110.367942][ T4895] dccp_sendmsg+0x538/0x8a8 [ 110.369219][ T4895] inet_sendmsg+0x154/0x284 [ 110.370501][ T4895] __sys_sendto+0x2e8/0x3d8 [ 110.371793][ T4895] __arm64_sys_sendto+0xd8/0xf8 [ 110.373190][ T4895] invoke_syscall+0x98/0x2b8 [ 110.374504][ T4895] el0_svc_common+0x138/0x258 [ 110.375838][ T4895] do_el0_svc+0x58/0x14c [ 110.377032][ T4895] el0_svc+0x78/0x1e0 [ 110.378176][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 110.379608][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 110.381301][ T4895] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.384398][ T4895] CPU: 1 PID: 4895 Comm: syz.0.27 Not tainted 5.15.185-syzkaller #0 [ 110.386630][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.389502][ T4895] Call trace: [ 110.390339][ T4895] dump_backtrace+0x0/0x43c [ 110.391661][ T4895] show_stack+0x2c/0x3c [ 110.392807][ T4895] __dump_stack+0x30/0x40 [ 110.394057][ T4895] dump_stack_lvl+0xf8/0x160 [ 110.395357][ T4895] dump_stack+0x1c/0x5c [ 110.396525][ T4895] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.398038][ T4895] dccp_xmit_packet+0x298/0x448 [ 110.399440][ T4895] dccp_write_xmit+0x118/0x1d0 [ 110.400732][ T4895] dccp_sendmsg+0x538/0x8a8 [ 110.401950][ T4895] inet_sendmsg+0x154/0x284 [ 110.403328][ T4895] __sys_sendto+0x2e8/0x3d8 [ 110.404547][ T4895] __arm64_sys_sendto+0xd8/0xf8 [ 110.405891][ T4895] invoke_syscall+0x98/0x2b8 [ 110.407238][ T4895] el0_svc_common+0x138/0x258 [ 110.408475][ T4895] do_el0_svc+0x58/0x14c [ 110.409603][ T4895] el0_svc+0x78/0x1e0 [ 110.410725][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 110.412173][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 110.451046][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.454852][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.457042][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.459785][ T4897] Call trace: [ 110.460689][ T4897] dump_backtrace+0x0/0x43c [ 110.461926][ T4897] show_stack+0x2c/0x3c [ 110.463118][ T4897] __dump_stack+0x30/0x40 [ 110.464336][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.465613][ T4897] dump_stack+0x1c/0x5c [ 110.466783][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.468336][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.469666][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.470992][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.472242][ T4897] inet_sendmsg+0x154/0x284 [ 110.473506][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.474747][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.476139][ T4897] invoke_syscall+0x98/0x2b8 [ 110.477459][ T4897] el0_svc_common+0x138/0x258 [ 110.478754][ T4897] do_el0_svc+0x58/0x14c [ 110.479913][ T4897] el0_svc+0x78/0x1e0 [ 110.481028][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.482453][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.485997][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.489033][ T4897] CPU: 1 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.491187][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.493865][ T4897] Call trace: [ 110.494799][ T4897] dump_backtrace+0x0/0x43c [ 110.496005][ T4897] show_stack+0x2c/0x3c [ 110.497118][ T4897] __dump_stack+0x30/0x40 [ 110.498330][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.499580][ T4897] dump_stack+0x1c/0x5c [ 110.500754][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.502241][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.503591][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.504869][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.506121][ T4897] inet_sendmsg+0x154/0x284 [ 110.507426][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.508727][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.510049][ T4897] invoke_syscall+0x98/0x2b8 [ 110.511327][ T4897] el0_svc_common+0x138/0x258 [ 110.512636][ T4897] do_el0_svc+0x58/0x14c [ 110.513808][ T4897] el0_svc+0x78/0x1e0 [ 110.514889][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.516245][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.519317][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.522560][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.524745][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.527701][ T4897] Call trace: [ 110.528626][ T4897] dump_backtrace+0x0/0x43c [ 110.529865][ T4897] show_stack+0x2c/0x3c [ 110.531006][ T4897] __dump_stack+0x30/0x40 [ 110.532247][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.533527][ T4897] dump_stack+0x1c/0x5c [ 110.534684][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.536307][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.537617][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.538968][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.540312][ T4897] inet_sendmsg+0x154/0x284 [ 110.541600][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.542802][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.544237][ T4897] invoke_syscall+0x98/0x2b8 [ 110.545591][ T4897] el0_svc_common+0x138/0x258 [ 110.546860][ T4897] do_el0_svc+0x58/0x14c [ 110.548052][ T4897] el0_svc+0x78/0x1e0 [ 110.549198][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.550569][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.553494][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.556687][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.558915][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.561687][ T4897] Call trace: [ 110.562581][ T4897] dump_backtrace+0x0/0x43c [ 110.563819][ T4897] show_stack+0x2c/0x3c [ 110.565018][ T4897] __dump_stack+0x30/0x40 [ 110.566315][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.567600][ T4897] dump_stack+0x1c/0x5c [ 110.568761][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.570294][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.571609][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.572899][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.574208][ T4897] inet_sendmsg+0x154/0x284 [ 110.575437][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.576657][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.578036][ T4897] invoke_syscall+0x98/0x2b8 [ 110.579316][ T4897] el0_svc_common+0x138/0x258 [ 110.580612][ T4897] do_el0_svc+0x58/0x14c [ 110.581886][ T4897] el0_svc+0x78/0x1e0 [ 110.583032][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.584490][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.586895][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.589945][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.592061][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.594811][ T4897] Call trace: [ 110.595678][ T4897] dump_backtrace+0x0/0x43c [ 110.596932][ T4897] show_stack+0x2c/0x3c [ 110.598075][ T4897] __dump_stack+0x30/0x40 [ 110.599365][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.600635][ T4897] dump_stack+0x1c/0x5c [ 110.601859][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.603355][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.604692][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.605999][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.607241][ T4897] inet_sendmsg+0x154/0x284 [ 110.608458][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.609692][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.611094][ T4897] invoke_syscall+0x98/0x2b8 [ 110.612388][ T4897] el0_svc_common+0x138/0x258 [ 110.613677][ T4897] do_el0_svc+0x58/0x14c [ 110.614850][ T4897] el0_svc+0x78/0x1e0 [ 110.615922][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.617322][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.619428][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.622453][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.624585][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.627372][ T4897] Call trace: [ 110.628251][ T4897] dump_backtrace+0x0/0x43c [ 110.629443][ T4897] show_stack+0x2c/0x3c [ 110.630633][ T4897] __dump_stack+0x30/0x40 [ 110.631815][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.632986][ T4897] dump_stack+0x1c/0x5c [ 110.634119][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.635666][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.636956][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.638269][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.639530][ T4897] inet_sendmsg+0x154/0x284 [ 110.640728][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.641976][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.643360][ T4897] invoke_syscall+0x98/0x2b8 [ 110.644558][ T4897] el0_svc_common+0x138/0x258 [ 110.645846][ T4897] do_el0_svc+0x58/0x14c [ 110.647032][ T4897] el0_svc+0x78/0x1e0 [ 110.648095][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.649517][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.651461][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.654593][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.656827][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.659618][ T4897] Call trace: [ 110.660498][ T4897] dump_backtrace+0x0/0x43c [ 110.661750][ T4897] show_stack+0x2c/0x3c [ 110.662861][ T4897] __dump_stack+0x30/0x40 [ 110.664055][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.665339][ T4897] dump_stack+0x1c/0x5c [ 110.666463][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.667934][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.669365][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.670692][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.671947][ T4897] inet_sendmsg+0x154/0x284 [ 110.673228][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.674505][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.675834][ T4897] invoke_syscall+0x98/0x2b8 [ 110.677104][ T4897] el0_svc_common+0x138/0x258 [ 110.678372][ T4897] do_el0_svc+0x58/0x14c [ 110.679556][ T4897] el0_svc+0x78/0x1e0 [ 110.680641][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.681973][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.683666][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.686606][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.688684][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.691433][ T4897] Call trace: [ 110.692322][ T4897] dump_backtrace+0x0/0x43c [ 110.693535][ T4897] show_stack+0x2c/0x3c [ 110.694738][ T4897] __dump_stack+0x30/0x40 [ 110.695936][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.697187][ T4897] dump_stack+0x1c/0x5c [ 110.698332][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.699868][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.701224][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.702497][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.703666][ T4897] inet_sendmsg+0x154/0x284 [ 110.704861][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.706047][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.707498][ T4897] invoke_syscall+0x98/0x2b8 [ 110.708801][ T4897] el0_svc_common+0x138/0x258 [ 110.710077][ T4897] do_el0_svc+0x58/0x14c [ 110.711245][ T4897] el0_svc+0x78/0x1e0 [ 110.712372][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.713747][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.715331][ T4897] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.718371][ T4897] CPU: 0 PID: 4897 Comm: syz.0.28 Not tainted 5.15.185-syzkaller #0 [ 110.720533][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.723156][ T4897] Call trace: [ 110.724043][ T4897] dump_backtrace+0x0/0x43c [ 110.725287][ T4897] show_stack+0x2c/0x3c [ 110.726481][ T4897] __dump_stack+0x30/0x40 [ 110.727667][ T4897] dump_stack_lvl+0xf8/0x160 [ 110.728929][ T4897] dump_stack+0x1c/0x5c [ 110.730013][ T4897] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.731546][ T4897] dccp_xmit_packet+0x298/0x448 [ 110.732830][ T4897] dccp_write_xmit+0x118/0x1d0 [ 110.734118][ T4897] dccp_sendmsg+0x538/0x8a8 [ 110.735352][ T4897] inet_sendmsg+0x154/0x284 [ 110.736585][ T4897] __sys_sendto+0x2e8/0x3d8 [ 110.737809][ T4897] __arm64_sys_sendto+0xd8/0xf8 [ 110.739139][ T4897] invoke_syscall+0x98/0x2b8 [ 110.740442][ T4897] el0_svc_common+0x138/0x258 [ 110.741658][ T4897] do_el0_svc+0x58/0x14c [ 110.742782][ T4897] el0_svc+0x78/0x1e0 [ 110.743847][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 110.745208][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 110.779183][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.782273][ T4899] CPU: 1 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 110.784515][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.787430][ T4899] Call trace: [ 110.788339][ T4899] dump_backtrace+0x0/0x43c [ 110.789528][ T4899] show_stack+0x2c/0x3c [ 110.790678][ T4899] __dump_stack+0x30/0x40 [ 110.791860][ T4899] dump_stack_lvl+0xf8/0x160 [ 110.793037][ T4899] dump_stack+0x1c/0x5c [ 110.794210][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.795688][ T4899] dccp_xmit_packet+0x298/0x448 [ 110.797017][ T4899] dccp_write_xmit+0x118/0x1d0 [ 110.798353][ T4899] dccp_sendmsg+0x538/0x8a8 [ 110.799639][ T4899] inet_sendmsg+0x154/0x284 [ 110.800851][ T4899] __sys_sendto+0x2e8/0x3d8 [ 110.802102][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 110.803415][ T4899] invoke_syscall+0x98/0x2b8 [ 110.804697][ T4899] el0_svc_common+0x138/0x258 [ 110.805984][ T4899] do_el0_svc+0x58/0x14c [ 110.807138][ T4899] el0_svc+0x78/0x1e0 [ 110.808235][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 110.809604][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 110.812360][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.818380][ T4899] CPU: 1 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 110.820575][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.823322][ T4899] Call trace: [ 110.824174][ T4899] dump_backtrace+0x0/0x43c [ 110.825359][ T4899] show_stack+0x2c/0x3c [ 110.826520][ T4899] __dump_stack+0x30/0x40 [ 110.827688][ T4899] dump_stack_lvl+0xf8/0x160 [ 110.828933][ T4899] dump_stack+0x1c/0x5c [ 110.830154][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.831669][ T4899] dccp_xmit_packet+0x298/0x448 [ 110.833033][ T4899] dccp_write_xmit+0x118/0x1d0 [ 110.834356][ T4899] dccp_sendmsg+0x538/0x8a8 [ 110.835616][ T4899] inet_sendmsg+0x154/0x284 [ 110.836818][ T4899] __sys_sendto+0x2e8/0x3d8 [ 110.838047][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 110.839311][ T4899] invoke_syscall+0x98/0x2b8 [ 110.840543][ T4899] el0_svc_common+0x138/0x258 [ 110.841817][ T4899] do_el0_svc+0x58/0x14c [ 110.843012][ T4899] el0_svc+0x78/0x1e0 [ 110.844079][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 110.845447][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 110.848693][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.851999][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 110.854277][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.857034][ T4899] Call trace: [ 110.857953][ T4899] dump_backtrace+0x0/0x43c [ 110.859221][ T4899] show_stack+0x2c/0x3c [ 110.860393][ T4899] __dump_stack+0x30/0x40 [ 110.861614][ T4899] dump_stack_lvl+0xf8/0x160 [ 110.862878][ T4899] dump_stack+0x1c/0x5c [ 110.864033][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.865524][ T4899] dccp_xmit_packet+0x298/0x448 [ 110.866832][ T4899] dccp_write_xmit+0x118/0x1d0 [ 110.868164][ T4899] dccp_sendmsg+0x538/0x8a8 [ 110.869407][ T4899] inet_sendmsg+0x154/0x284 [ 110.870685][ T4899] __sys_sendto+0x2e8/0x3d8 [ 110.871880][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 110.873265][ T4899] invoke_syscall+0x98/0x2b8 [ 110.874597][ T4899] el0_svc_common+0x138/0x258 [ 110.875899][ T4899] do_el0_svc+0x58/0x14c [ 110.877103][ T4899] el0_svc+0x78/0x1e0 [ 110.878215][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 110.879676][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 110.882136][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.885405][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 110.887596][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.890403][ T4899] Call trace: [ 110.891306][ T4899] dump_backtrace+0x0/0x43c [ 110.892595][ T4899] show_stack+0x2c/0x3c [ 110.893822][ T4899] __dump_stack+0x30/0x40 [ 110.895013][ T4899] dump_stack_lvl+0xf8/0x160 [ 110.896295][ T4899] dump_stack+0x1c/0x5c [ 110.897433][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.898901][ T4899] dccp_xmit_packet+0x298/0x448 [ 110.900271][ T4899] dccp_write_xmit+0x118/0x1d0 [ 110.901596][ T4899] dccp_sendmsg+0x538/0x8a8 [ 110.902878][ T4899] inet_sendmsg+0x154/0x284 [ 110.904110][ T4899] __sys_sendto+0x2e8/0x3d8 [ 110.905388][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 110.906743][ T4899] invoke_syscall+0x98/0x2b8 [ 110.908003][ T4899] el0_svc_common+0x138/0x258 [ 110.909402][ T4899] do_el0_svc+0x58/0x14c [ 110.910560][ T4899] el0_svc+0x78/0x1e0 [ 110.911626][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 110.912990][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 110.914978][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.918123][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 110.920544][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.923223][ T4899] Call trace: [ 110.924149][ T4899] dump_backtrace+0x0/0x43c [ 110.925420][ T4899] show_stack+0x2c/0x3c [ 110.926644][ T4899] __dump_stack+0x30/0x40 [ 110.927946][ T4899] dump_stack_lvl+0xf8/0x160 [ 110.929188][ T4899] dump_stack+0x1c/0x5c [ 110.930367][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.931861][ T4899] dccp_xmit_packet+0x298/0x448 [ 110.933173][ T4899] dccp_write_xmit+0x118/0x1d0 [ 110.934488][ T4899] dccp_sendmsg+0x538/0x8a8 [ 110.935783][ T4899] inet_sendmsg+0x154/0x284 [ 110.937057][ T4899] __sys_sendto+0x2e8/0x3d8 [ 110.938287][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 110.939620][ T4899] invoke_syscall+0x98/0x2b8 [ 110.940911][ T4899] el0_svc_common+0x138/0x258 [ 110.942191][ T4899] do_el0_svc+0x58/0x14c [ 110.943380][ T4899] el0_svc+0x78/0x1e0 [ 110.944458][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 110.945800][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 110.947464][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.950474][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 110.952644][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.955386][ T4899] Call trace: [ 110.956313][ T4899] dump_backtrace+0x0/0x43c [ 110.957527][ T4899] show_stack+0x2c/0x3c [ 110.958666][ T4899] __dump_stack+0x30/0x40 [ 110.959817][ T4899] dump_stack_lvl+0xf8/0x160 [ 110.961107][ T4899] dump_stack+0x1c/0x5c [ 110.962282][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.963801][ T4899] dccp_xmit_packet+0x298/0x448 [ 110.965183][ T4899] dccp_write_xmit+0x118/0x1d0 [ 110.966542][ T4899] dccp_sendmsg+0x538/0x8a8 [ 110.967829][ T4899] inet_sendmsg+0x154/0x284 [ 110.969005][ T4899] __sys_sendto+0x2e8/0x3d8 [ 110.970306][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 110.971650][ T4899] invoke_syscall+0x98/0x2b8 [ 110.972929][ T4899] el0_svc_common+0x138/0x258 [ 110.974235][ T4899] do_el0_svc+0x58/0x14c [ 110.975409][ T4899] el0_svc+0x78/0x1e0 [ 110.976507][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 110.977798][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 110.979477][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 110.982400][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 110.984559][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.987420][ T4899] Call trace: [ 110.988335][ T4899] dump_backtrace+0x0/0x43c [ 110.989645][ T4899] show_stack+0x2c/0x3c [ 110.990853][ T4899] __dump_stack+0x30/0x40 [ 110.992062][ T4899] dump_stack_lvl+0xf8/0x160 [ 110.993346][ T4899] dump_stack+0x1c/0x5c [ 110.994543][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 110.996043][ T4899] dccp_xmit_packet+0x298/0x448 [ 110.997420][ T4899] dccp_write_xmit+0x118/0x1d0 [ 110.998725][ T4899] dccp_sendmsg+0x538/0x8a8 [ 110.999982][ T4899] inet_sendmsg+0x154/0x284 [ 111.001237][ T4899] __sys_sendto+0x2e8/0x3d8 [ 111.002506][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 111.003832][ T4899] invoke_syscall+0x98/0x2b8 [ 111.005081][ T4899] el0_svc_common+0x138/0x258 [ 111.006428][ T4899] do_el0_svc+0x58/0x14c [ 111.007673][ T4899] el0_svc+0x78/0x1e0 [ 111.008730][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 111.010116][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 111.011745][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.014850][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 111.016935][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.019615][ T4899] Call trace: [ 111.020471][ T4899] dump_backtrace+0x0/0x43c [ 111.021718][ T4899] show_stack+0x2c/0x3c [ 111.022872][ T4899] __dump_stack+0x30/0x40 [ 111.024028][ T4899] dump_stack_lvl+0xf8/0x160 [ 111.025288][ T4899] dump_stack+0x1c/0x5c [ 111.026425][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.027948][ T4899] dccp_xmit_packet+0x298/0x448 [ 111.029335][ T4899] dccp_write_xmit+0x118/0x1d0 [ 111.030679][ T4899] dccp_sendmsg+0x538/0x8a8 [ 111.031921][ T4899] inet_sendmsg+0x154/0x284 [ 111.033101][ T4899] __sys_sendto+0x2e8/0x3d8 [ 111.034390][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 111.035691][ T4899] invoke_syscall+0x98/0x2b8 [ 111.036896][ T4899] el0_svc_common+0x138/0x258 [ 111.038205][ T4899] do_el0_svc+0x58/0x14c [ 111.039333][ T4899] el0_svc+0x78/0x1e0 [ 111.040431][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 111.041796][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 111.043516][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.046558][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 111.048659][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.051322][ T4899] Call trace: [ 111.052238][ T4899] dump_backtrace+0x0/0x43c [ 111.053439][ T4899] show_stack+0x2c/0x3c [ 111.054569][ T4899] __dump_stack+0x30/0x40 [ 111.055734][ T4899] dump_stack_lvl+0xf8/0x160 [ 111.056989][ T4899] dump_stack+0x1c/0x5c [ 111.058201][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.059712][ T4899] dccp_xmit_packet+0x298/0x448 [ 111.061060][ T4899] dccp_write_xmit+0x118/0x1d0 [ 111.062418][ T4899] dccp_sendmsg+0x538/0x8a8 [ 111.063669][ T4899] inet_sendmsg+0x154/0x284 [ 111.064901][ T4899] __sys_sendto+0x2e8/0x3d8 [ 111.066140][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 111.067501][ T4899] invoke_syscall+0x98/0x2b8 [ 111.068742][ T4899] el0_svc_common+0x138/0x258 [ 111.069963][ T4899] do_el0_svc+0x58/0x14c [ 111.071115][ T4899] el0_svc+0x78/0x1e0 [ 111.072226][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 111.073615][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 111.075394][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.078457][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 111.080673][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.083266][ T4899] Call trace: [ 111.084155][ T4899] dump_backtrace+0x0/0x43c [ 111.085575][ T4899] show_stack+0x2c/0x3c [ 111.086727][ T4899] __dump_stack+0x30/0x40 [ 111.087979][ T4899] dump_stack_lvl+0xf8/0x160 [ 111.089299][ T4899] dump_stack+0x1c/0x5c [ 111.090414][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.091930][ T4899] dccp_xmit_packet+0x298/0x448 [ 111.093243][ T4899] dccp_write_xmit+0x118/0x1d0 [ 111.094586][ T4899] dccp_sendmsg+0x538/0x8a8 [ 111.095855][ T4899] inet_sendmsg+0x154/0x284 [ 111.097122][ T4899] __sys_sendto+0x2e8/0x3d8 [ 111.098395][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 111.099768][ T4899] invoke_syscall+0x98/0x2b8 [ 111.101044][ T4899] el0_svc_common+0x138/0x258 [ 111.102328][ T4899] do_el0_svc+0x58/0x14c [ 111.103477][ T4899] el0_svc+0x78/0x1e0 [ 111.104539][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 111.105923][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 111.107586][ T4899] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.110654][ T4899] CPU: 0 PID: 4899 Comm: syz.0.29 Not tainted 5.15.185-syzkaller #0 [ 111.112850][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.115614][ T4899] Call trace: [ 111.116541][ T4899] dump_backtrace+0x0/0x43c [ 111.117876][ T4899] show_stack+0x2c/0x3c [ 111.119016][ T4899] __dump_stack+0x30/0x40 [ 111.120213][ T4899] dump_stack_lvl+0xf8/0x160 [ 111.121468][ T4899] dump_stack+0x1c/0x5c [ 111.122597][ T4899] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.124103][ T4899] dccp_xmit_packet+0x298/0x448 [ 111.125490][ T4899] dccp_write_xmit+0x118/0x1d0 [ 111.126853][ T4899] dccp_sendmsg+0x538/0x8a8 [ 111.128181][ T4899] inet_sendmsg+0x154/0x284 [ 111.129446][ T4899] __sys_sendto+0x2e8/0x3d8 [ 111.130692][ T4899] __arm64_sys_sendto+0xd8/0xf8 [ 111.132028][ T4899] invoke_syscall+0x98/0x2b8 [ 111.133301][ T4899] el0_svc_common+0x138/0x258 [ 111.134578][ T4899] do_el0_svc+0x58/0x14c [ 111.135906][ T4899] el0_svc+0x78/0x1e0 [ 111.137008][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 111.138356][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 111.173642][ T4901] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.176788][ T4901] CPU: 1 PID: 4901 Comm: syz.0.30 Not tainted 5.15.185-syzkaller #0 [ 111.179017][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.181707][ T4901] Call trace: [ 111.182615][ T4901] dump_backtrace+0x0/0x43c [ 111.183934][ T4901] show_stack+0x2c/0x3c [ 111.185050][ T4901] __dump_stack+0x30/0x40 [ 111.186245][ T4901] dump_stack_lvl+0xf8/0x160 [ 111.187533][ T4901] dump_stack+0x1c/0x5c [ 111.188676][ T4901] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.190200][ T4901] dccp_xmit_packet+0x298/0x448 [ 111.191570][ T4901] dccp_write_xmit+0x118/0x1d0 [ 111.192911][ T4901] dccp_sendmsg+0x538/0x8a8 [ 111.194157][ T4901] inet_sendmsg+0x154/0x284 [ 111.195470][ T4901] __sys_sendto+0x2e8/0x3d8 [ 111.196739][ T4901] __arm64_sys_sendto+0xd8/0xf8 [ 111.198114][ T4901] invoke_syscall+0x98/0x2b8 [ 111.199362][ T4901] el0_svc_common+0x138/0x258 [ 111.200632][ T4901] do_el0_svc+0x58/0x14c [ 111.201846][ T4901] el0_svc+0x78/0x1e0 [ 111.203024][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 111.204509][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 111.207586][ T4901] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.210892][ T4901] CPU: 1 PID: 4901 Comm: syz.0.30 Not tainted 5.15.185-syzkaller #0 [ 111.213134][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.215860][ T4901] Call trace: [ 111.216849][ T4901] dump_backtrace+0x0/0x43c [ 111.218101][ T4901] show_stack+0x2c/0x3c [ 111.219258][ T4901] __dump_stack+0x30/0x40 [ 111.220469][ T4901] dump_stack_lvl+0xf8/0x160 [ 111.221662][ T4901] dump_stack+0x1c/0x5c [ 111.222842][ T4901] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.224318][ T4901] dccp_xmit_packet+0x298/0x448 [ 111.225689][ T4901] dccp_write_xmit+0x118/0x1d0 [ 111.226999][ T4901] dccp_sendmsg+0x538/0x8a8 [ 111.228278][ T4901] inet_sendmsg+0x154/0x284 [ 111.229520][ T4901] __sys_sendto+0x2e8/0x3d8 [ 111.230860][ T4901] __arm64_sys_sendto+0xd8/0xf8 [ 111.232319][ T4901] invoke_syscall+0x98/0x2b8 [ 111.233561][ T4901] el0_svc_common+0x138/0x258 [ 111.234837][ T4901] do_el0_svc+0x58/0x14c [ 111.235984][ T4901] el0_svc+0x78/0x1e0 [ 111.237063][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 111.238482][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 111.241627][ T4901] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.245431][ T4901] CPU: 1 PID: 4901 Comm: syz.0.30 Not tainted 5.15.185-syzkaller #0 [ 111.247709][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.250405][ T4901] Call trace: [ 111.251239][ T4901] dump_backtrace+0x0/0x43c [ 111.252443][ T4901] show_stack+0x2c/0x3c [ 111.253590][ T4901] __dump_stack+0x30/0x40 [ 111.254776][ T4901] dump_stack_lvl+0xf8/0x160 [ 111.256035][ T4901] dump_stack+0x1c/0x5c [ 111.257179][ T4901] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.258731][ T4901] dccp_xmit_packet+0x298/0x448 [ 111.260091][ T4901] dccp_write_xmit+0x118/0x1d0 [ 111.261425][ T4901] dccp_sendmsg+0x538/0x8a8 [ 111.262709][ T4901] inet_sendmsg+0x154/0x284 [ 111.263962][ T4901] __sys_sendto+0x2e8/0x3d8 [ 111.265196][ T4901] __arm64_sys_sendto+0xd8/0xf8 [ 111.266636][ T4901] invoke_syscall+0x98/0x2b8 [ 111.268034][ T4901] el0_svc_common+0x138/0x258 [ 111.269352][ T4901] do_el0_svc+0x58/0x14c [ 111.270576][ T4901] el0_svc+0x78/0x1e0 [ 111.271704][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 111.273024][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 111.274766][ T4901] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.277766][ T4901] CPU: 1 PID: 4901 Comm: syz.0.30 Not tainted 5.15.185-syzkaller #0 [ 111.279978][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.282709][ T4901] Call trace: [ 111.283670][ T4901] dump_backtrace+0x0/0x43c [ 111.284924][ T4901] show_stack+0x2c/0x3c [ 111.286084][ T4901] __dump_stack+0x30/0x40 [ 111.287271][ T4901] dump_stack_lvl+0xf8/0x160 [ 111.288577][ T4901] dump_stack+0x1c/0x5c [ 111.289742][ T4901] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.291302][ T4901] dccp_xmit_packet+0x298/0x448 [ 111.292671][ T4901] dccp_write_xmit+0x118/0x1d0 [ 111.293911][ T4901] dccp_sendmsg+0x538/0x8a8 [ 111.295208][ T4901] inet_sendmsg+0x154/0x284 [ 111.296550][ T4901] __sys_sendto+0x2e8/0x3d8 [ 111.297788][ T4901] __arm64_sys_sendto+0xd8/0xf8 [ 111.299102][ T4901] invoke_syscall+0x98/0x2b8 [ 111.300360][ T4901] el0_svc_common+0x138/0x258 [ 111.301613][ T4901] do_el0_svc+0x58/0x14c [ 111.302739][ T4901] el0_svc+0x78/0x1e0 [ 111.303877][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 111.305229][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 111.307050][ T4901] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.310025][ T4901] CPU: 1 PID: 4901 Comm: syz.0.30 Not tainted 5.15.185-syzkaller #0 [ 111.312189][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.314973][ T4901] Call trace: [ 111.315860][ T4901] dump_backtrace+0x0/0x43c [ 111.317111][ T4901] show_stack+0x2c/0x3c [ 111.318288][ T4901] __dump_stack+0x30/0x40 [ 111.319456][ T4901] dump_stack_lvl+0xf8/0x160 [ 111.320669][ T4901] dump_stack+0x1c/0x5c [ 111.321855][ T4901] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.323371][ T4901] dccp_xmit_packet+0x298/0x448 [ 111.324724][ T4901] dccp_write_xmit+0x118/0x1d0 [ 111.326075][ T4901] dccp_sendmsg+0x538/0x8a8 [ 111.327390][ T4901] inet_sendmsg+0x154/0x284 [ 111.328595][ T4901] __sys_sendto+0x2e8/0x3d8 [ 111.329822][ T4901] __arm64_sys_sendto+0xd8/0xf8 [ 111.331129][ T4901] invoke_syscall+0x98/0x2b8 [ 111.332373][ T4901] el0_svc_common+0x138/0x258 [ 111.333677][ T4901] do_el0_svc+0x58/0x14c [ 111.334904][ T4901] el0_svc+0x78/0x1e0 [ 111.336036][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 111.337402][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 111.339376][ T4901] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.342310][ T4901] CPU: 1 PID: 4901 Comm: syz.0.30 Not tainted 5.15.185-syzkaller #0 [ 111.344445][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.347268][ T4901] Call trace: [ 111.348105][ T4901] dump_backtrace+0x0/0x43c [ 111.349330][ T4901] show_stack+0x2c/0x3c [ 111.350525][ T4901] __dump_stack+0x30/0x40 [ 111.351679][ T4901] dump_stack_lvl+0xf8/0x160 [ 111.352920][ T4901] dump_stack+0x1c/0x5c [ 111.354083][ T4901] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.355606][ T4901] dccp_xmit_packet+0x298/0x448 [ 111.356881][ T4901] dccp_write_xmit+0x118/0x1d0 [ 111.358165][ T4901] dccp_sendmsg+0x538/0x8a8 [ 111.359435][ T4901] inet_sendmsg+0x154/0x284 [ 111.360661][ T4901] __sys_sendto+0x2e8/0x3d8 [ 111.361906][ T4901] __arm64_sys_sendto+0xd8/0xf8 [ 111.363248][ T4901] invoke_syscall+0x98/0x2b8 [ 111.364507][ T4901] el0_svc_common+0x138/0x258 [ 111.365791][ T4901] do_el0_svc+0x58/0x14c [ 111.366930][ T4901] el0_svc+0x78/0x1e0 [ 111.367977][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 111.369397][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 111.400118][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.403482][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.405645][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.408287][ T4903] Call trace: [ 111.409182][ T4903] dump_backtrace+0x0/0x43c [ 111.410398][ T4903] show_stack+0x2c/0x3c [ 111.411492][ T4903] __dump_stack+0x30/0x40 [ 111.412684][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.413886][ T4903] dump_stack+0x1c/0x5c [ 111.415087][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.416596][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.417868][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.419211][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.420426][ T4903] inet_sendmsg+0x154/0x284 [ 111.421627][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.422865][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.424150][ T4903] invoke_syscall+0x98/0x2b8 [ 111.425377][ T4903] el0_svc_common+0x138/0x258 [ 111.426632][ T4903] do_el0_svc+0x58/0x14c [ 111.427733][ T4903] el0_svc+0x78/0x1e0 [ 111.428817][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.430287][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.432798][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.436118][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.438432][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.441313][ T4903] Call trace: [ 111.442225][ T4903] dump_backtrace+0x0/0x43c [ 111.443386][ T4903] show_stack+0x2c/0x3c [ 111.444514][ T4903] __dump_stack+0x30/0x40 [ 111.445770][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.446988][ T4903] dump_stack+0x1c/0x5c [ 111.448150][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.449760][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.451184][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.452570][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.453798][ T4903] inet_sendmsg+0x154/0x284 [ 111.455023][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.456245][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.457605][ T4903] invoke_syscall+0x98/0x2b8 [ 111.458861][ T4903] el0_svc_common+0x138/0x258 [ 111.460147][ T4903] do_el0_svc+0x58/0x14c [ 111.461313][ T4903] el0_svc+0x78/0x1e0 [ 111.462374][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.463756][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.465828][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.468906][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.471099][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.473892][ T4903] Call trace: [ 111.474759][ T4903] dump_backtrace+0x0/0x43c [ 111.475982][ T4903] show_stack+0x2c/0x3c [ 111.477067][ T4903] __dump_stack+0x30/0x40 [ 111.478242][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.479451][ T4903] dump_stack+0x1c/0x5c [ 111.480569][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.482076][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.483400][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.484650][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.485876][ T4903] inet_sendmsg+0x154/0x284 [ 111.487231][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.488460][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.489809][ T4903] invoke_syscall+0x98/0x2b8 [ 111.491148][ T4903] el0_svc_common+0x138/0x258 [ 111.492433][ T4903] do_el0_svc+0x58/0x14c [ 111.493583][ T4903] el0_svc+0x78/0x1e0 [ 111.494696][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.496094][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.498443][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.501678][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.503903][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.506692][ T4903] Call trace: [ 111.507572][ T4903] dump_backtrace+0x0/0x43c [ 111.508796][ T4903] show_stack+0x2c/0x3c [ 111.509935][ T4903] __dump_stack+0x30/0x40 [ 111.511214][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.512510][ T4903] dump_stack+0x1c/0x5c [ 111.513608][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.515129][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.516454][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.517772][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.518998][ T4903] inet_sendmsg+0x154/0x284 [ 111.520228][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.521508][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.522884][ T4903] invoke_syscall+0x98/0x2b8 [ 111.524094][ T4903] el0_svc_common+0x138/0x258 [ 111.525378][ T4903] do_el0_svc+0x58/0x14c [ 111.526533][ T4903] el0_svc+0x78/0x1e0 [ 111.527611][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.528995][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.531396][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.534497][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.536637][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.539451][ T4903] Call trace: [ 111.540330][ T4903] dump_backtrace+0x0/0x43c [ 111.541618][ T4903] show_stack+0x2c/0x3c [ 111.542789][ T4903] __dump_stack+0x30/0x40 [ 111.543992][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.545240][ T4903] dump_stack+0x1c/0x5c [ 111.546391][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.547893][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.549256][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.550502][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.551759][ T4903] inet_sendmsg+0x154/0x284 [ 111.553902][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.555911][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.557919][ T4903] invoke_syscall+0x98/0x2b8 [ 111.559684][ T4903] el0_svc_common+0x138/0x258 [ 111.561599][ T4903] do_el0_svc+0x58/0x14c [ 111.562801][ T4903] el0_svc+0x78/0x1e0 [ 111.563934][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.565561][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.567502][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.570704][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.572914][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.575729][ T4903] Call trace: [ 111.576629][ T4903] dump_backtrace+0x0/0x43c [ 111.577873][ T4903] show_stack+0x2c/0x3c [ 111.579030][ T4903] __dump_stack+0x30/0x40 [ 111.580234][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.581448][ T4903] dump_stack+0x1c/0x5c [ 111.582598][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.584126][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.585464][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.586793][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.588015][ T4903] inet_sendmsg+0x154/0x284 [ 111.589261][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.590420][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.591757][ T4903] invoke_syscall+0x98/0x2b8 [ 111.593088][ T4903] el0_svc_common+0x138/0x258 [ 111.594420][ T4903] do_el0_svc+0x58/0x14c [ 111.595581][ T4903] el0_svc+0x78/0x1e0 [ 111.596663][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.597989][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.599614][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.602668][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.604867][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.607658][ T4903] Call trace: [ 111.608548][ T4903] dump_backtrace+0x0/0x43c [ 111.609770][ T4903] show_stack+0x2c/0x3c [ 111.610942][ T4903] __dump_stack+0x30/0x40 [ 111.612151][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.613380][ T4903] dump_stack+0x1c/0x5c [ 111.614565][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.616047][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.617379][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.618676][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.619934][ T4903] inet_sendmsg+0x154/0x284 [ 111.621139][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.622389][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.623668][ T4903] invoke_syscall+0x98/0x2b8 [ 111.624938][ T4903] el0_svc_common+0x138/0x258 [ 111.626236][ T4903] do_el0_svc+0x58/0x14c [ 111.627373][ T4903] el0_svc+0x78/0x1e0 [ 111.628425][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.629867][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.632431][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.635634][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.637806][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.640483][ T4903] Call trace: [ 111.641366][ T4903] dump_backtrace+0x0/0x43c [ 111.642581][ T4903] show_stack+0x2c/0x3c [ 111.643702][ T4903] __dump_stack+0x30/0x40 [ 111.644865][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.646116][ T4903] dump_stack+0x1c/0x5c [ 111.647250][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.648748][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.650074][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.651411][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.652597][ T4903] inet_sendmsg+0x154/0x284 [ 111.653799][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.655027][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.656355][ T4903] invoke_syscall+0x98/0x2b8 [ 111.657597][ T4903] el0_svc_common+0x138/0x258 [ 111.658862][ T4903] do_el0_svc+0x58/0x14c [ 111.660069][ T4903] el0_svc+0x78/0x1e0 [ 111.661087][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.662462][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.664424][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.667493][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.669524][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.672156][ T4903] Call trace: [ 111.672979][ T4903] dump_backtrace+0x0/0x43c [ 111.674229][ T4903] show_stack+0x2c/0x3c [ 111.675388][ T4903] __dump_stack+0x30/0x40 [ 111.676619][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.677845][ T4903] dump_stack+0x1c/0x5c [ 111.679011][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.680501][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.681845][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.683184][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.684377][ T4903] inet_sendmsg+0x154/0x284 [ 111.685689][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.686904][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.688195][ T4903] invoke_syscall+0x98/0x2b8 [ 111.689389][ T4903] el0_svc_common+0x138/0x258 [ 111.690643][ T4903] do_el0_svc+0x58/0x14c [ 111.691771][ T4903] el0_svc+0x78/0x1e0 [ 111.692893][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.694298][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.696295][ T4903] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.699344][ T4903] CPU: 1 PID: 4903 Comm: syz.0.31 Not tainted 5.15.185-syzkaller #0 [ 111.701567][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.704353][ T4903] Call trace: [ 111.705226][ T4903] dump_backtrace+0x0/0x43c [ 111.706465][ T4903] show_stack+0x2c/0x3c [ 111.707599][ T4903] __dump_stack+0x30/0x40 [ 111.708720][ T4903] dump_stack_lvl+0xf8/0x160 [ 111.709967][ T4903] dump_stack+0x1c/0x5c [ 111.711093][ T4903] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.712579][ T4903] dccp_xmit_packet+0x298/0x448 [ 111.713862][ T4903] dccp_write_xmit+0x118/0x1d0 [ 111.715221][ T4903] dccp_sendmsg+0x538/0x8a8 [ 111.716454][ T4903] inet_sendmsg+0x154/0x284 [ 111.717666][ T4903] __sys_sendto+0x2e8/0x3d8 [ 111.718946][ T4903] __arm64_sys_sendto+0xd8/0xf8 [ 111.720262][ T4903] invoke_syscall+0x98/0x2b8 [ 111.721550][ T4903] el0_svc_common+0x138/0x258 [ 111.722806][ T4903] do_el0_svc+0x58/0x14c [ 111.723980][ T4903] el0_svc+0x78/0x1e0 [ 111.725087][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 111.726431][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 111.762532][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.766136][ T4905] CPU: 1 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 111.768300][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.770945][ T4905] Call trace: [ 111.771827][ T4905] dump_backtrace+0x0/0x43c [ 111.773045][ T4905] show_stack+0x2c/0x3c [ 111.774181][ T4905] __dump_stack+0x30/0x40 [ 111.775357][ T4905] dump_stack_lvl+0xf8/0x160 [ 111.776613][ T4905] dump_stack+0x1c/0x5c [ 111.777742][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.779229][ T4905] dccp_xmit_packet+0x298/0x448 [ 111.780521][ T4905] dccp_write_xmit+0x118/0x1d0 [ 111.781799][ T4905] dccp_sendmsg+0x538/0x8a8 [ 111.782982][ T4905] inet_sendmsg+0x154/0x284 [ 111.784139][ T4905] __sys_sendto+0x2e8/0x3d8 [ 111.785357][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 111.786658][ T4905] invoke_syscall+0x98/0x2b8 [ 111.787913][ T4905] el0_svc_common+0x138/0x258 [ 111.789247][ T4905] do_el0_svc+0x58/0x14c [ 111.790349][ T4905] el0_svc+0x78/0x1e0 [ 111.791420][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 111.792747][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 111.795797][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.799055][ T4905] CPU: 0 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 111.801228][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.804038][ T4905] Call trace: [ 111.804973][ T4905] dump_backtrace+0x0/0x43c [ 111.806225][ T4905] show_stack+0x2c/0x3c [ 111.807421][ T4905] __dump_stack+0x30/0x40 [ 111.808599][ T4905] dump_stack_lvl+0xf8/0x160 [ 111.809809][ T4905] dump_stack+0x1c/0x5c [ 111.811064][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.812600][ T4905] dccp_xmit_packet+0x298/0x448 [ 111.813952][ T4905] dccp_write_xmit+0x118/0x1d0 [ 111.815325][ T4905] dccp_sendmsg+0x538/0x8a8 [ 111.816596][ T4905] inet_sendmsg+0x154/0x284 [ 111.817825][ T4905] __sys_sendto+0x2e8/0x3d8 [ 111.819060][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 111.820480][ T4905] invoke_syscall+0x98/0x2b8 [ 111.821787][ T4905] el0_svc_common+0x138/0x258 [ 111.823070][ T4905] do_el0_svc+0x58/0x14c [ 111.824279][ T4905] el0_svc+0x78/0x1e0 [ 111.825440][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 111.826870][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 111.830376][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.833593][ T4905] CPU: 1 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 111.835673][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.838302][ T4905] Call trace: [ 111.839170][ T4905] dump_backtrace+0x0/0x43c [ 111.840342][ T4905] show_stack+0x2c/0x3c [ 111.841394][ T4905] __dump_stack+0x30/0x40 [ 111.842571][ T4905] dump_stack_lvl+0xf8/0x160 [ 111.843760][ T4905] dump_stack+0x1c/0x5c [ 111.844886][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.846403][ T4905] dccp_xmit_packet+0x298/0x448 [ 111.847677][ T4905] dccp_write_xmit+0x118/0x1d0 [ 111.848962][ T4905] dccp_sendmsg+0x538/0x8a8 [ 111.850185][ T4905] inet_sendmsg+0x154/0x284 [ 111.851433][ T4905] __sys_sendto+0x2e8/0x3d8 [ 111.852633][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 111.853965][ T4905] invoke_syscall+0x98/0x2b8 [ 111.855228][ T4905] el0_svc_common+0x138/0x258 [ 111.856517][ T4905] do_el0_svc+0x58/0x14c [ 111.857650][ T4905] el0_svc+0x78/0x1e0 [ 111.858745][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 111.860113][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 111.862909][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.866116][ T4905] CPU: 1 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 111.868209][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.870810][ T4905] Call trace: [ 111.871680][ T4905] dump_backtrace+0x0/0x43c [ 111.872881][ T4905] show_stack+0x2c/0x3c [ 111.873979][ T4905] __dump_stack+0x30/0x40 [ 111.875168][ T4905] dump_stack_lvl+0xf8/0x160 [ 111.876372][ T4905] dump_stack+0x1c/0x5c [ 111.877492][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.878968][ T4905] dccp_xmit_packet+0x298/0x448 [ 111.880307][ T4905] dccp_write_xmit+0x118/0x1d0 [ 111.881568][ T4905] dccp_sendmsg+0x538/0x8a8 [ 111.882834][ T4905] inet_sendmsg+0x154/0x284 [ 111.884100][ T4905] __sys_sendto+0x2e8/0x3d8 [ 111.885355][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 111.886726][ T4905] invoke_syscall+0x98/0x2b8 [ 111.887976][ T4905] el0_svc_common+0x138/0x258 [ 111.889277][ T4905] do_el0_svc+0x58/0x14c [ 111.890460][ T4905] el0_svc+0x78/0x1e0 [ 111.891520][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 111.892915][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 111.894528][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.897499][ T4905] CPU: 1 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 111.899629][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.902332][ T4905] Call trace: [ 111.903225][ T4905] dump_backtrace+0x0/0x43c [ 111.904449][ T4905] show_stack+0x2c/0x3c [ 111.905582][ T4905] __dump_stack+0x30/0x40 [ 111.906779][ T4905] dump_stack_lvl+0xf8/0x160 [ 111.908002][ T4905] dump_stack+0x1c/0x5c [ 111.909181][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.910621][ T4905] dccp_xmit_packet+0x298/0x448 [ 111.911897][ T4905] dccp_write_xmit+0x118/0x1d0 [ 111.913300][ T4905] dccp_sendmsg+0x538/0x8a8 [ 111.914526][ T4905] inet_sendmsg+0x154/0x284 [ 111.915830][ T4905] __sys_sendto+0x2e8/0x3d8 [ 111.917062][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 111.918447][ T4905] invoke_syscall+0x98/0x2b8 [ 111.919703][ T4905] el0_svc_common+0x138/0x258 [ 111.921031][ T4905] do_el0_svc+0x58/0x14c [ 111.922231][ T4905] el0_svc+0x78/0x1e0 [ 111.923316][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 111.924746][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 111.927820][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.931003][ T4905] CPU: 0 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 111.933255][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.936139][ T4905] Call trace: [ 111.937077][ T4905] dump_backtrace+0x0/0x43c [ 111.938290][ T4905] show_stack+0x2c/0x3c [ 111.939481][ T4905] __dump_stack+0x30/0x40 [ 111.940679][ T4905] dump_stack_lvl+0xf8/0x160 [ 111.941928][ T4905] dump_stack+0x1c/0x5c [ 111.943105][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.944566][ T4905] dccp_xmit_packet+0x298/0x448 [ 111.945854][ T4905] dccp_write_xmit+0x118/0x1d0 [ 111.947123][ T4905] dccp_sendmsg+0x538/0x8a8 [ 111.948344][ T4905] inet_sendmsg+0x154/0x284 [ 111.949569][ T4905] __sys_sendto+0x2e8/0x3d8 [ 111.950826][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 111.952158][ T4905] invoke_syscall+0x98/0x2b8 [ 111.953423][ T4905] el0_svc_common+0x138/0x258 [ 111.954752][ T4905] do_el0_svc+0x58/0x14c [ 111.955960][ T4905] el0_svc+0x78/0x1e0 [ 111.957059][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 111.958449][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 111.962486][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 111.969675][ T4905] CPU: 1 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 111.971981][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.974743][ T4905] Call trace: [ 111.975644][ T4905] dump_backtrace+0x0/0x43c [ 111.976861][ T4905] show_stack+0x2c/0x3c [ 111.977978][ T4905] __dump_stack+0x30/0x40 [ 111.979168][ T4905] dump_stack_lvl+0xf8/0x160 [ 111.980407][ T4905] dump_stack+0x1c/0x5c [ 111.981514][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 111.982943][ T4905] dccp_xmit_packet+0x298/0x448 [ 111.984281][ T4905] dccp_write_xmit+0x118/0x1d0 [ 111.985611][ T4905] dccp_sendmsg+0x538/0x8a8 [ 111.986883][ T4905] inet_sendmsg+0x154/0x284 [ 111.988114][ T4905] __sys_sendto+0x2e8/0x3d8 [ 111.989299][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 111.990611][ T4905] invoke_syscall+0x98/0x2b8 [ 111.991949][ T4905] el0_svc_common+0x138/0x258 [ 111.993292][ T4905] do_el0_svc+0x58/0x14c [ 111.994425][ T4905] el0_svc+0x78/0x1e0 [ 111.995491][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 111.996903][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 112.000217][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.003464][ T4905] CPU: 0 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 112.005600][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.008315][ T4905] Call trace: [ 112.009179][ T4905] dump_backtrace+0x0/0x43c [ 112.010422][ T4905] show_stack+0x2c/0x3c [ 112.011563][ T4905] __dump_stack+0x30/0x40 [ 112.012737][ T4905] dump_stack_lvl+0xf8/0x160 [ 112.013941][ T4905] dump_stack+0x1c/0x5c [ 112.015095][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.016582][ T4905] dccp_xmit_packet+0x298/0x448 [ 112.017979][ T4905] dccp_write_xmit+0x118/0x1d0 [ 112.019333][ T4905] dccp_sendmsg+0x538/0x8a8 [ 112.020562][ T4905] inet_sendmsg+0x154/0x284 [ 112.021804][ T4905] __sys_sendto+0x2e8/0x3d8 [ 112.023055][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 112.024394][ T4905] invoke_syscall+0x98/0x2b8 [ 112.025616][ T4905] el0_svc_common+0x138/0x258 [ 112.026948][ T4905] do_el0_svc+0x58/0x14c [ 112.028132][ T4905] el0_svc+0x78/0x1e0 [ 112.029245][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 112.030706][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 112.032497][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.035746][ T4905] CPU: 0 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 112.038053][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.040700][ T4905] Call trace: [ 112.041534][ T4905] dump_backtrace+0x0/0x43c [ 112.042741][ T4905] show_stack+0x2c/0x3c [ 112.043898][ T4905] __dump_stack+0x30/0x40 [ 112.045131][ T4905] dump_stack_lvl+0xf8/0x160 [ 112.046378][ T4905] dump_stack+0x1c/0x5c [ 112.047531][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.048997][ T4905] dccp_xmit_packet+0x298/0x448 [ 112.050314][ T4905] dccp_write_xmit+0x118/0x1d0 [ 112.051604][ T4905] dccp_sendmsg+0x538/0x8a8 [ 112.052895][ T4905] inet_sendmsg+0x154/0x284 [ 112.054117][ T4905] __sys_sendto+0x2e8/0x3d8 [ 112.055458][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 112.056781][ T4905] invoke_syscall+0x98/0x2b8 [ 112.058021][ T4905] el0_svc_common+0x138/0x258 [ 112.059306][ T4905] do_el0_svc+0x58/0x14c [ 112.060422][ T4905] el0_svc+0x78/0x1e0 [ 112.061534][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 112.062880][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 112.064527][ T4905] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.067630][ T4905] CPU: 0 PID: 4905 Comm: syz.0.32 Not tainted 5.15.185-syzkaller #0 [ 112.069831][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.072501][ T4905] Call trace: [ 112.073385][ T4905] dump_backtrace+0x0/0x43c [ 112.074667][ T4905] show_stack+0x2c/0x3c [ 112.075845][ T4905] __dump_stack+0x30/0x40 [ 112.076998][ T4905] dump_stack_lvl+0xf8/0x160 [ 112.078233][ T4905] dump_stack+0x1c/0x5c [ 112.079409][ T4905] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.080862][ T4905] dccp_xmit_packet+0x298/0x448 [ 112.082252][ T4905] dccp_write_xmit+0x118/0x1d0 [ 112.083554][ T4905] dccp_sendmsg+0x538/0x8a8 [ 112.084876][ T4905] inet_sendmsg+0x154/0x284 [ 112.086063][ T4905] __sys_sendto+0x2e8/0x3d8 [ 112.087232][ T4905] __arm64_sys_sendto+0xd8/0xf8 [ 112.088559][ T4905] invoke_syscall+0x98/0x2b8 [ 112.089821][ T4905] el0_svc_common+0x138/0x258 [ 112.091066][ T4905] do_el0_svc+0x58/0x14c [ 112.092261][ T4905] el0_svc+0x78/0x1e0 [ 112.093312][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 112.094681][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 112.114418][ T4907] net_ratelimit: 7 callbacks suppressed [ 112.114433][ T4907] dccp_xmit_packet: Payload too large (65475) for featneg. [ 112.130839][ T4907] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.134006][ T4907] CPU: 1 PID: 4907 Comm: syz.0.33 Not tainted 5.15.185-syzkaller #0 [ 112.136244][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.139066][ T4907] Call trace: [ 112.140017][ T4907] dump_backtrace+0x0/0x43c [ 112.141254][ T4907] show_stack+0x2c/0x3c [ 112.142417][ T4907] __dump_stack+0x30/0x40 [ 112.143678][ T4907] dump_stack_lvl+0xf8/0x160 [ 112.144958][ T4907] dump_stack+0x1c/0x5c [ 112.146225][ T4907] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.147768][ T4907] dccp_xmit_packet+0x298/0x448 [ 112.149167][ T4907] dccp_write_xmit+0x118/0x1d0 [ 112.150462][ T4907] dccp_sendmsg+0x538/0x8a8 [ 112.151644][ T4907] inet_sendmsg+0x154/0x284 [ 112.152924][ T4907] __sys_sendto+0x2e8/0x3d8 [ 112.154198][ T4907] __arm64_sys_sendto+0xd8/0xf8 [ 112.155473][ T4907] invoke_syscall+0x98/0x2b8 [ 112.156755][ T4907] el0_svc_common+0x138/0x258 [ 112.158012][ T4907] do_el0_svc+0x58/0x14c [ 112.159241][ T4907] el0_svc+0x78/0x1e0 [ 112.160436][ T4907] el0t_64_sync_handler+0xcc/0xe4 [ 112.161829][ T4907] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:01:52 executed programs: 19 [ 112.165274][ T4907] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.168235][ T4907] CPU: 0 PID: 4907 Comm: syz.0.33 Not tainted 5.15.185-syzkaller #0 [ 112.170483][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.173138][ T4907] Call trace: [ 112.173986][ T4907] dump_backtrace+0x0/0x43c [ 112.175228][ T4907] show_stack+0x2c/0x3c [ 112.176381][ T4907] __dump_stack+0x30/0x40 [ 112.177584][ T4907] dump_stack_lvl+0xf8/0x160 [ 112.178838][ T4907] dump_stack+0x1c/0x5c [ 112.179895][ T4907] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.181471][ T4907] dccp_xmit_packet+0x298/0x448 [ 112.182853][ T4907] dccp_write_xmit+0x118/0x1d0 [ 112.184198][ T4907] dccp_sendmsg+0x538/0x8a8 [ 112.185417][ T4907] inet_sendmsg+0x154/0x284 [ 112.186699][ T4907] __sys_sendto+0x2e8/0x3d8 [ 112.187866][ T4907] __arm64_sys_sendto+0xd8/0xf8 [ 112.189139][ T4907] invoke_syscall+0x98/0x2b8 [ 112.190390][ T4907] el0_svc_common+0x138/0x258 [ 112.191582][ T4907] do_el0_svc+0x58/0x14c [ 112.192694][ T4907] el0_svc+0x78/0x1e0 [ 112.193836][ T4907] el0t_64_sync_handler+0xcc/0xe4 [ 112.195159][ T4907] el0t_64_sync+0x1a0/0x1a4 [ 112.197798][ T4907] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.200822][ T4907] CPU: 0 PID: 4907 Comm: syz.0.33 Not tainted 5.15.185-syzkaller #0 [ 112.202933][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.205708][ T4907] Call trace: [ 112.206656][ T4907] dump_backtrace+0x0/0x43c [ 112.207988][ T4907] show_stack+0x2c/0x3c [ 112.209159][ T4907] __dump_stack+0x30/0x40 [ 112.210329][ T4907] dump_stack_lvl+0xf8/0x160 [ 112.211637][ T4907] dump_stack+0x1c/0x5c [ 112.212723][ T4907] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.214251][ T4907] dccp_xmit_packet+0x298/0x448 [ 112.215608][ T4907] dccp_write_xmit+0x118/0x1d0 [ 112.216940][ T4907] dccp_sendmsg+0x538/0x8a8 [ 112.218252][ T4907] inet_sendmsg+0x154/0x284 [ 112.219470][ T4907] __sys_sendto+0x2e8/0x3d8 [ 112.220743][ T4907] __arm64_sys_sendto+0xd8/0xf8 [ 112.221997][ T4907] invoke_syscall+0x98/0x2b8 [ 112.223236][ T4907] el0_svc_common+0x138/0x258 [ 112.224521][ T4907] do_el0_svc+0x58/0x14c [ 112.225647][ T4907] el0_svc+0x78/0x1e0 [ 112.226735][ T4907] el0t_64_sync_handler+0xcc/0xe4 [ 112.228140][ T4907] el0t_64_sync+0x1a0/0x1a4 [ 112.229910][ T4907] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.232895][ T4907] CPU: 0 PID: 4907 Comm: syz.0.33 Not tainted 5.15.185-syzkaller #0 [ 112.235138][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.237913][ T4907] Call trace: [ 112.238815][ T4907] dump_backtrace+0x0/0x43c [ 112.240059][ T4907] show_stack+0x2c/0x3c [ 112.241181][ T4907] __dump_stack+0x30/0x40 [ 112.242403][ T4907] dump_stack_lvl+0xf8/0x160 [ 112.243564][ T4907] dump_stack+0x1c/0x5c [ 112.244696][ T4907] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.246117][ T4907] dccp_xmit_packet+0x298/0x448 [ 112.247432][ T4907] dccp_write_xmit+0x118/0x1d0 [ 112.248720][ T4907] dccp_sendmsg+0x538/0x8a8 [ 112.249951][ T4907] inet_sendmsg+0x154/0x284 [ 112.251161][ T4907] __sys_sendto+0x2e8/0x3d8 [ 112.252388][ T4907] __arm64_sys_sendto+0xd8/0xf8 [ 112.253669][ T4907] invoke_syscall+0x98/0x2b8 [ 112.254995][ T4907] el0_svc_common+0x138/0x258 [ 112.256265][ T4907] do_el0_svc+0x58/0x14c [ 112.257436][ T4907] el0_svc+0x78/0x1e0 [ 112.258523][ T4907] el0t_64_sync_handler+0xcc/0xe4 [ 112.259892][ T4907] el0t_64_sync+0x1a0/0x1a4 [ 112.280160][ T4909] dccp_xmit_packet: Payload too large (65475) for featneg. [ 112.296005][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.299134][ T4909] CPU: 0 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.301322][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.304020][ T4909] Call trace: [ 112.304932][ T4909] dump_backtrace+0x0/0x43c [ 112.306224][ T4909] show_stack+0x2c/0x3c [ 112.307361][ T4909] __dump_stack+0x30/0x40 [ 112.308526][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.309830][ T4909] dump_stack+0x1c/0x5c [ 112.310929][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.312387][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.313699][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.315002][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.316196][ T4909] inet_sendmsg+0x154/0x284 [ 112.317396][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.318694][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.319968][ T4909] invoke_syscall+0x98/0x2b8 [ 112.321285][ T4909] el0_svc_common+0x138/0x258 [ 112.322482][ T4909] do_el0_svc+0x58/0x14c [ 112.323606][ T4909] el0_svc+0x78/0x1e0 [ 112.324642][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.326061][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.327691][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.330610][ T4909] CPU: 0 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.332723][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.335493][ T4909] Call trace: [ 112.336345][ T4909] dump_backtrace+0x0/0x43c [ 112.337662][ T4909] show_stack+0x2c/0x3c [ 112.338823][ T4909] __dump_stack+0x30/0x40 [ 112.340026][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.341089][ T4909] dump_stack+0x1c/0x5c [ 112.342070][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.343370][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.344515][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.345648][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.346741][ T4909] inet_sendmsg+0x154/0x284 [ 112.347812][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.348886][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.350060][ T4909] invoke_syscall+0x98/0x2b8 [ 112.351190][ T4909] el0_svc_common+0x138/0x258 [ 112.352294][ T4909] do_el0_svc+0x58/0x14c [ 112.353318][ T4909] el0_svc+0x78/0x1e0 [ 112.354452][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.355839][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.358319][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.361500][ T4909] CPU: 0 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.363672][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.366382][ T4909] Call trace: [ 112.367223][ T4909] dump_backtrace+0x0/0x43c [ 112.368477][ T4909] show_stack+0x2c/0x3c [ 112.369601][ T4909] __dump_stack+0x30/0x40 [ 112.370830][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.372063][ T4909] dump_stack+0x1c/0x5c [ 112.373240][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.374753][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.376122][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.377450][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.378671][ T4909] inet_sendmsg+0x154/0x284 [ 112.379911][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.381125][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.382467][ T4909] invoke_syscall+0x98/0x2b8 [ 112.383693][ T4909] el0_svc_common+0x138/0x258 [ 112.385003][ T4909] do_el0_svc+0x58/0x14c [ 112.386232][ T4909] el0_svc+0x78/0x1e0 [ 112.387351][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.388791][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.390496][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.393611][ T4909] CPU: 0 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.395690][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.398421][ T4909] Call trace: [ 112.399310][ T4909] dump_backtrace+0x0/0x43c [ 112.400560][ T4909] show_stack+0x2c/0x3c [ 112.401721][ T4909] __dump_stack+0x30/0x40 [ 112.402902][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.404207][ T4909] dump_stack+0x1c/0x5c [ 112.405398][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.406922][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.408275][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.409556][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.410736][ T4909] inet_sendmsg+0x154/0x284 [ 112.412077][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.413310][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.414636][ T4909] invoke_syscall+0x98/0x2b8 [ 112.415895][ T4909] el0_svc_common+0x138/0x258 [ 112.417151][ T4909] do_el0_svc+0x58/0x14c [ 112.418311][ T4909] el0_svc+0x78/0x1e0 [ 112.419383][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.420801][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.425169][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.428400][ T4909] CPU: 1 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.430654][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.433371][ T4909] Call trace: [ 112.434223][ T4909] dump_backtrace+0x0/0x43c [ 112.435458][ T4909] show_stack+0x2c/0x3c [ 112.436586][ T4909] __dump_stack+0x30/0x40 [ 112.437775][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.439055][ T4909] dump_stack+0x1c/0x5c [ 112.440129][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.441649][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.443103][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.444431][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.445673][ T4909] inet_sendmsg+0x154/0x284 [ 112.446943][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.448207][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.449552][ T4909] invoke_syscall+0x98/0x2b8 [ 112.450855][ T4909] el0_svc_common+0x138/0x258 [ 112.452157][ T4909] do_el0_svc+0x58/0x14c [ 112.453342][ T4909] el0_svc+0x78/0x1e0 [ 112.454454][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.455805][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.460880][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.464153][ T4909] CPU: 1 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.466631][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.469332][ T4909] Call trace: [ 112.470232][ T4909] dump_backtrace+0x0/0x43c [ 112.471439][ T4909] show_stack+0x2c/0x3c [ 112.472612][ T4909] __dump_stack+0x30/0x40 [ 112.473780][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.475028][ T4909] dump_stack+0x1c/0x5c [ 112.476146][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.477733][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.479048][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.480354][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.481583][ T4909] inet_sendmsg+0x154/0x284 [ 112.482846][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.484023][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.485361][ T4909] invoke_syscall+0x98/0x2b8 [ 112.486639][ T4909] el0_svc_common+0x138/0x258 [ 112.487855][ T4909] do_el0_svc+0x58/0x14c [ 112.488996][ T4909] el0_svc+0x78/0x1e0 [ 112.490114][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.491621][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.499813][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.503155][ T4909] CPU: 1 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.505417][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.508223][ T4909] Call trace: [ 112.509147][ T4909] dump_backtrace+0x0/0x43c [ 112.510434][ T4909] show_stack+0x2c/0x3c [ 112.511610][ T4909] __dump_stack+0x30/0x40 [ 112.512799][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.514030][ T4909] dump_stack+0x1c/0x5c [ 112.515228][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.516829][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.518245][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.519599][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.520710][ T4909] inet_sendmsg+0x154/0x284 [ 112.521776][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.522872][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.524268][ T4909] invoke_syscall+0x98/0x2b8 [ 112.525621][ T4909] el0_svc_common+0x138/0x258 [ 112.526928][ T4909] do_el0_svc+0x58/0x14c [ 112.528196][ T4909] el0_svc+0x78/0x1e0 [ 112.529364][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.530766][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.535987][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.539063][ T4909] CPU: 1 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.541153][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.543899][ T4909] Call trace: [ 112.544808][ T4909] dump_backtrace+0x0/0x43c [ 112.546016][ T4909] show_stack+0x2c/0x3c [ 112.547138][ T4909] __dump_stack+0x30/0x40 [ 112.548323][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.549691][ T4909] dump_stack+0x1c/0x5c [ 112.550843][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.552421][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.553787][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.555341][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.556703][ T4909] inet_sendmsg+0x154/0x284 [ 112.558037][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.559314][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.560652][ T4909] invoke_syscall+0x98/0x2b8 [ 112.561974][ T4909] el0_svc_common+0x138/0x258 [ 112.563377][ T4909] do_el0_svc+0x58/0x14c [ 112.564563][ T4909] el0_svc+0x78/0x1e0 [ 112.565613][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.567067][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.571416][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.575070][ T4909] CPU: 1 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.577244][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.579946][ T4909] Call trace: [ 112.580857][ T4909] dump_backtrace+0x0/0x43c [ 112.582114][ T4909] show_stack+0x2c/0x3c [ 112.583283][ T4909] __dump_stack+0x30/0x40 [ 112.584520][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.585821][ T4909] dump_stack+0x1c/0x5c [ 112.587002][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.588682][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.590000][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.591369][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.592643][ T4909] inet_sendmsg+0x154/0x284 [ 112.593907][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.595188][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.596549][ T4909] invoke_syscall+0x98/0x2b8 [ 112.597830][ T4909] el0_svc_common+0x138/0x258 [ 112.599097][ T4909] do_el0_svc+0x58/0x14c [ 112.600280][ T4909] el0_svc+0x78/0x1e0 [ 112.601406][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.602850][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.606645][ T4909] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.609755][ T4909] CPU: 1 PID: 4909 Comm: syz.0.34 Not tainted 5.15.185-syzkaller #0 [ 112.612046][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.614844][ T4909] Call trace: [ 112.615758][ T4909] dump_backtrace+0x0/0x43c [ 112.616975][ T4909] show_stack+0x2c/0x3c [ 112.618105][ T4909] __dump_stack+0x30/0x40 [ 112.619366][ T4909] dump_stack_lvl+0xf8/0x160 [ 112.620650][ T4909] dump_stack+0x1c/0x5c [ 112.621858][ T4909] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.623424][ T4909] dccp_xmit_packet+0x298/0x448 [ 112.624804][ T4909] dccp_write_xmit+0x118/0x1d0 [ 112.626140][ T4909] dccp_sendmsg+0x538/0x8a8 [ 112.627379][ T4909] inet_sendmsg+0x154/0x284 [ 112.628632][ T4909] __sys_sendto+0x2e8/0x3d8 [ 112.629872][ T4909] __arm64_sys_sendto+0xd8/0xf8 [ 112.631325][ T4909] invoke_syscall+0x98/0x2b8 [ 112.632689][ T4909] el0_svc_common+0x138/0x258 [ 112.633975][ T4909] do_el0_svc+0x58/0x14c [ 112.635211][ T4909] el0_svc+0x78/0x1e0 [ 112.636283][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 112.637660][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 112.656716][ T4911] dccp_xmit_packet: Payload too large (65475) for featneg. [ 112.672195][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.675484][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.677582][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.680217][ T4911] Call trace: [ 112.681077][ T4911] dump_backtrace+0x0/0x43c [ 112.682380][ T4911] show_stack+0x2c/0x3c [ 112.683538][ T4911] __dump_stack+0x30/0x40 [ 112.684763][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.685971][ T4911] dump_stack+0x1c/0x5c [ 112.687093][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.688559][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.689874][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.691163][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.692427][ T4911] inet_sendmsg+0x154/0x284 [ 112.693664][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.694895][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.696183][ T4911] invoke_syscall+0x98/0x2b8 [ 112.697440][ T4911] el0_svc_common+0x138/0x258 [ 112.698776][ T4911] do_el0_svc+0x58/0x14c [ 112.699956][ T4911] el0_svc+0x78/0x1e0 [ 112.701047][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.702465][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.705633][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.708738][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.710943][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.713808][ T4911] Call trace: [ 112.714698][ T4911] dump_backtrace+0x0/0x43c [ 112.715886][ T4911] show_stack+0x2c/0x3c [ 112.716994][ T4911] __dump_stack+0x30/0x40 [ 112.718250][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.719613][ T4911] dump_stack+0x1c/0x5c [ 112.720735][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.722286][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.723638][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.724975][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.726233][ T4911] inet_sendmsg+0x154/0x284 [ 112.727490][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.728768][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.730160][ T4911] invoke_syscall+0x98/0x2b8 [ 112.731410][ T4911] el0_svc_common+0x138/0x258 [ 112.732743][ T4911] do_el0_svc+0x58/0x14c [ 112.733886][ T4911] el0_svc+0x78/0x1e0 [ 112.734962][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.736320][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.740160][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.743686][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.745789][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.748595][ T4911] Call trace: [ 112.749513][ T4911] dump_backtrace+0x0/0x43c [ 112.750753][ T4911] show_stack+0x2c/0x3c [ 112.751902][ T4911] __dump_stack+0x30/0x40 [ 112.753085][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.754377][ T4911] dump_stack+0x1c/0x5c [ 112.755648][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.757152][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.758471][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.759671][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.760907][ T4911] inet_sendmsg+0x154/0x284 [ 112.762083][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.763340][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.764658][ T4911] invoke_syscall+0x98/0x2b8 [ 112.765954][ T4911] el0_svc_common+0x138/0x258 [ 112.767352][ T4911] do_el0_svc+0x58/0x14c [ 112.768574][ T4911] el0_svc+0x78/0x1e0 [ 112.769657][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.771107][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.774323][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.777663][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.779882][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.782660][ T4911] Call trace: [ 112.783584][ T4911] dump_backtrace+0x0/0x43c [ 112.784841][ T4911] show_stack+0x2c/0x3c [ 112.786067][ T4911] __dump_stack+0x30/0x40 [ 112.787426][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.788741][ T4911] dump_stack+0x1c/0x5c [ 112.789883][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.791368][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.792659][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.793974][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.795261][ T4911] inet_sendmsg+0x154/0x284 [ 112.796517][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.797738][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.799103][ T4911] invoke_syscall+0x98/0x2b8 [ 112.800347][ T4911] el0_svc_common+0x138/0x258 [ 112.801644][ T4911] do_el0_svc+0x58/0x14c [ 112.802886][ T4911] el0_svc+0x78/0x1e0 [ 112.804036][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.805460][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.808662][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.811914][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.814261][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.817050][ T4911] Call trace: [ 112.817951][ T4911] dump_backtrace+0x0/0x43c [ 112.819223][ T4911] show_stack+0x2c/0x3c [ 112.820287][ T4911] __dump_stack+0x30/0x40 [ 112.821475][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.822724][ T4911] dump_stack+0x1c/0x5c [ 112.823862][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.825368][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.826641][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.827977][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.829262][ T4911] inet_sendmsg+0x154/0x284 [ 112.830485][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.831676][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.832970][ T4911] invoke_syscall+0x98/0x2b8 [ 112.834241][ T4911] el0_svc_common+0x138/0x258 [ 112.835496][ T4911] do_el0_svc+0x58/0x14c [ 112.836656][ T4911] el0_svc+0x78/0x1e0 [ 112.837796][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.839174][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.842502][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.845740][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.847916][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.850653][ T4911] Call trace: [ 112.851567][ T4911] dump_backtrace+0x0/0x43c [ 112.852814][ T4911] show_stack+0x2c/0x3c [ 112.854036][ T4911] __dump_stack+0x30/0x40 [ 112.855255][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.856599][ T4911] dump_stack+0x1c/0x5c [ 112.857688][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.859212][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.860578][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.861878][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.863118][ T4911] inet_sendmsg+0x154/0x284 [ 112.864339][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.865602][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.866924][ T4911] invoke_syscall+0x98/0x2b8 [ 112.868162][ T4911] el0_svc_common+0x138/0x258 [ 112.869447][ T4911] do_el0_svc+0x58/0x14c [ 112.870595][ T4911] el0_svc+0x78/0x1e0 [ 112.871689][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.873109][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.876334][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.879589][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.881691][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.884443][ T4911] Call trace: [ 112.885299][ T4911] dump_backtrace+0x0/0x43c [ 112.886563][ T4911] show_stack+0x2c/0x3c [ 112.887712][ T4911] __dump_stack+0x30/0x40 [ 112.889065][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.890299][ T4911] dump_stack+0x1c/0x5c [ 112.891447][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.892989][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.894315][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.895607][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.896843][ T4911] inet_sendmsg+0x154/0x284 [ 112.898002][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.899214][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.900475][ T4911] invoke_syscall+0x98/0x2b8 [ 112.901677][ T4911] el0_svc_common+0x138/0x258 [ 112.902975][ T4911] do_el0_svc+0x58/0x14c [ 112.904129][ T4911] el0_svc+0x78/0x1e0 [ 112.905272][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.906648][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.909992][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.913129][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.915328][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.918037][ T4911] Call trace: [ 112.918956][ T4911] dump_backtrace+0x0/0x43c [ 112.920213][ T4911] show_stack+0x2c/0x3c [ 112.921364][ T4911] __dump_stack+0x30/0x40 [ 112.922578][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.923829][ T4911] dump_stack+0x1c/0x5c [ 112.924947][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.926427][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.927724][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.929066][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.930319][ T4911] inet_sendmsg+0x154/0x284 [ 112.931530][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.932748][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.934081][ T4911] invoke_syscall+0x98/0x2b8 [ 112.935329][ T4911] el0_svc_common+0x138/0x258 [ 112.936636][ T4911] do_el0_svc+0x58/0x14c [ 112.937783][ T4911] el0_svc+0x78/0x1e0 [ 112.938829][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.940227][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.943510][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.946676][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.948847][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.951567][ T4911] Call trace: [ 112.952445][ T4911] dump_backtrace+0x0/0x43c [ 112.953752][ T4911] show_stack+0x2c/0x3c [ 112.954919][ T4911] __dump_stack+0x30/0x40 [ 112.956055][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.957371][ T4911] dump_stack+0x1c/0x5c [ 112.958472][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.959992][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.961336][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.962593][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.963840][ T4911] inet_sendmsg+0x154/0x284 [ 112.965079][ T4911] __sys_sendto+0x2e8/0x3d8 [ 112.966283][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 112.967618][ T4911] invoke_syscall+0x98/0x2b8 [ 112.968914][ T4911] el0_svc_common+0x138/0x258 [ 112.970211][ T4911] do_el0_svc+0x58/0x14c [ 112.971380][ T4911] el0_svc+0x78/0x1e0 [ 112.972561][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 112.973923][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 112.977155][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 112.980280][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 112.982398][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.985242][ T4911] Call trace: [ 112.986091][ T4911] dump_backtrace+0x0/0x43c [ 112.987340][ T4911] show_stack+0x2c/0x3c [ 112.988510][ T4911] __dump_stack+0x30/0x40 [ 112.989751][ T4911] dump_stack_lvl+0xf8/0x160 [ 112.990986][ T4911] dump_stack+0x1c/0x5c [ 112.992181][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 112.993672][ T4911] dccp_xmit_packet+0x298/0x448 [ 112.994969][ T4911] dccp_write_xmit+0x118/0x1d0 [ 112.996240][ T4911] dccp_sendmsg+0x538/0x8a8 [ 112.997522][ T4911] inet_sendmsg+0x154/0x284 [ 112.998777][ T4911] __sys_sendto+0x2e8/0x3d8 [ 113.000118][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 113.001516][ T4911] invoke_syscall+0x98/0x2b8 [ 113.002741][ T4911] el0_svc_common+0x138/0x258 [ 113.004034][ T4911] do_el0_svc+0x58/0x14c [ 113.005227][ T4911] el0_svc+0x78/0x1e0 [ 113.006291][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 113.007685][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 113.010940][ T4911] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.014079][ T4911] CPU: 0 PID: 4911 Comm: syz.0.35 Not tainted 5.15.185-syzkaller #0 [ 113.016262][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.018980][ T4911] Call trace: [ 113.019845][ T4911] dump_backtrace+0x0/0x43c [ 113.021063][ T4911] show_stack+0x2c/0x3c [ 113.022228][ T4911] __dump_stack+0x30/0x40 [ 113.023471][ T4911] dump_stack_lvl+0xf8/0x160 [ 113.024753][ T4911] dump_stack+0x1c/0x5c [ 113.025910][ T4911] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.027409][ T4911] dccp_xmit_packet+0x298/0x448 [ 113.028734][ T4911] dccp_write_xmit+0x118/0x1d0 [ 113.030148][ T4911] dccp_sendmsg+0x538/0x8a8 [ 113.031458][ T4911] inet_sendmsg+0x154/0x284 [ 113.032687][ T4911] __sys_sendto+0x2e8/0x3d8 [ 113.033934][ T4911] __arm64_sys_sendto+0xd8/0xf8 [ 113.035309][ T4911] invoke_syscall+0x98/0x2b8 [ 113.036565][ T4911] el0_svc_common+0x138/0x258 [ 113.037896][ T4911] do_el0_svc+0x58/0x14c [ 113.039078][ T4911] el0_svc+0x78/0x1e0 [ 113.040140][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 113.041509][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 113.062726][ T4913] dccp_xmit_packet: Payload too large (65475) for featneg. [ 113.080018][ T4913] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.083108][ T4913] CPU: 0 PID: 4913 Comm: syz.0.36 Not tainted 5.15.185-syzkaller #0 [ 113.085304][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.087968][ T4913] Call trace: [ 113.088899][ T4913] dump_backtrace+0x0/0x43c [ 113.090116][ T4913] show_stack+0x2c/0x3c [ 113.091232][ T4913] __dump_stack+0x30/0x40 [ 113.092433][ T4913] dump_stack_lvl+0xf8/0x160 [ 113.093746][ T4913] dump_stack+0x1c/0x5c [ 113.094891][ T4913] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.096497][ T4913] dccp_xmit_packet+0x298/0x448 [ 113.098005][ T4913] dccp_write_xmit+0x118/0x1d0 [ 113.099324][ T4913] dccp_sendmsg+0x538/0x8a8 [ 113.100558][ T4913] inet_sendmsg+0x154/0x284 [ 113.101801][ T4913] __sys_sendto+0x2e8/0x3d8 [ 113.103009][ T4913] __arm64_sys_sendto+0xd8/0xf8 [ 113.104302][ T4913] invoke_syscall+0x98/0x2b8 [ 113.105545][ T4913] el0_svc_common+0x138/0x258 [ 113.106892][ T4913] do_el0_svc+0x58/0x14c [ 113.108124][ T4913] el0_svc+0x78/0x1e0 [ 113.109209][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 113.110620][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 113.114398][ T4913] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.117629][ T4913] CPU: 0 PID: 4913 Comm: syz.0.36 Not tainted 5.15.185-syzkaller #0 [ 113.119827][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.122630][ T4913] Call trace: [ 113.123598][ T4913] dump_backtrace+0x0/0x43c [ 113.124888][ T4913] show_stack+0x2c/0x3c [ 113.126020][ T4913] __dump_stack+0x30/0x40 [ 113.127241][ T4913] dump_stack_lvl+0xf8/0x160 [ 113.128518][ T4913] dump_stack+0x1c/0x5c [ 113.129666][ T4913] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.131216][ T4913] dccp_xmit_packet+0x298/0x448 [ 113.132577][ T4913] dccp_write_xmit+0x118/0x1d0 [ 113.133847][ T4913] dccp_sendmsg+0x538/0x8a8 [ 113.135056][ T4913] inet_sendmsg+0x154/0x284 [ 113.136376][ T4913] __sys_sendto+0x2e8/0x3d8 [ 113.137610][ T4913] __arm64_sys_sendto+0xd8/0xf8 [ 113.138982][ T4913] invoke_syscall+0x98/0x2b8 [ 113.140155][ T4913] el0_svc_common+0x138/0x258 [ 113.141505][ T4913] do_el0_svc+0x58/0x14c [ 113.142675][ T4913] el0_svc+0x78/0x1e0 [ 113.143754][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 113.145112][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 113.148696][ T4913] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.151898][ T4913] CPU: 0 PID: 4913 Comm: syz.0.36 Not tainted 5.15.185-syzkaller #0 [ 113.154183][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.157001][ T4913] Call trace: [ 113.157883][ T4913] dump_backtrace+0x0/0x43c [ 113.159101][ T4913] show_stack+0x2c/0x3c [ 113.160251][ T4913] __dump_stack+0x30/0x40 [ 113.161437][ T4913] dump_stack_lvl+0xf8/0x160 [ 113.162619][ T4913] dump_stack+0x1c/0x5c [ 113.163791][ T4913] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.165278][ T4913] dccp_xmit_packet+0x298/0x448 [ 113.166667][ T4913] dccp_write_xmit+0x118/0x1d0 [ 113.168085][ T4913] dccp_sendmsg+0x538/0x8a8 [ 113.169358][ T4913] inet_sendmsg+0x154/0x284 [ 113.170671][ T4913] __sys_sendto+0x2e8/0x3d8 [ 113.171896][ T4913] __arm64_sys_sendto+0xd8/0xf8 [ 113.173188][ T4913] invoke_syscall+0x98/0x2b8 [ 113.174512][ T4913] el0_svc_common+0x138/0x258 [ 113.175830][ T4913] do_el0_svc+0x58/0x14c [ 113.176989][ T4913] el0_svc+0x78/0x1e0 [ 113.178090][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 113.179466][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 113.182694][ T4913] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.185887][ T4913] CPU: 0 PID: 4913 Comm: syz.0.36 Not tainted 5.15.185-syzkaller #0 [ 113.187988][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.190922][ T4913] Call trace: [ 113.191850][ T4913] dump_backtrace+0x0/0x43c [ 113.193135][ T4913] show_stack+0x2c/0x3c [ 113.194282][ T4913] __dump_stack+0x30/0x40 [ 113.195522][ T4913] dump_stack_lvl+0xf8/0x160 [ 113.196799][ T4913] dump_stack+0x1c/0x5c [ 113.197917][ T4913] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.199418][ T4913] dccp_xmit_packet+0x298/0x448 [ 113.200757][ T4913] dccp_write_xmit+0x118/0x1d0 [ 113.202108][ T4913] dccp_sendmsg+0x538/0x8a8 [ 113.203337][ T4913] inet_sendmsg+0x154/0x284 [ 113.204518][ T4913] __sys_sendto+0x2e8/0x3d8 [ 113.205748][ T4913] __arm64_sys_sendto+0xd8/0xf8 [ 113.207079][ T4913] invoke_syscall+0x98/0x2b8 [ 113.208383][ T4913] el0_svc_common+0x138/0x258 [ 113.209701][ T4913] do_el0_svc+0x58/0x14c [ 113.210893][ T4913] el0_svc+0x78/0x1e0 [ 113.211964][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 113.213335][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 113.216524][ T4913] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.219646][ T4913] CPU: 0 PID: 4913 Comm: syz.0.36 Not tainted 5.15.185-syzkaller #0 [ 113.221829][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.224627][ T4913] Call trace: [ 113.225518][ T4913] dump_backtrace+0x0/0x43c [ 113.226754][ T4913] show_stack+0x2c/0x3c [ 113.227912][ T4913] __dump_stack+0x30/0x40 [ 113.229158][ T4913] dump_stack_lvl+0xf8/0x160 [ 113.230407][ T4913] dump_stack+0x1c/0x5c [ 113.231595][ T4913] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.233226][ T4913] dccp_xmit_packet+0x298/0x448 [ 113.234499][ T4913] dccp_write_xmit+0x118/0x1d0 [ 113.235835][ T4913] dccp_sendmsg+0x538/0x8a8 [ 113.237053][ T4913] inet_sendmsg+0x154/0x284 [ 113.238319][ T4913] __sys_sendto+0x2e8/0x3d8 [ 113.239505][ T4913] __arm64_sys_sendto+0xd8/0xf8 [ 113.240879][ T4913] invoke_syscall+0x98/0x2b8 [ 113.242176][ T4913] el0_svc_common+0x138/0x258 [ 113.243470][ T4913] do_el0_svc+0x58/0x14c [ 113.244654][ T4913] el0_svc+0x78/0x1e0 [ 113.245691][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 113.247116][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 113.250329][ T4913] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.253539][ T4913] CPU: 0 PID: 4913 Comm: syz.0.36 Not tainted 5.15.185-syzkaller #0 [ 113.255711][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.258477][ T4913] Call trace: [ 113.259361][ T4913] dump_backtrace+0x0/0x43c [ 113.260641][ T4913] show_stack+0x2c/0x3c [ 113.261745][ T4913] __dump_stack+0x30/0x40 [ 113.262962][ T4913] dump_stack_lvl+0xf8/0x160 [ 113.264312][ T4913] dump_stack+0x1c/0x5c [ 113.265394][ T4913] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.266903][ T4913] dccp_xmit_packet+0x298/0x448 [ 113.268205][ T4913] dccp_write_xmit+0x118/0x1d0 [ 113.269470][ T4913] dccp_sendmsg+0x538/0x8a8 [ 113.270712][ T4913] inet_sendmsg+0x154/0x284 [ 113.271877][ T4913] __sys_sendto+0x2e8/0x3d8 [ 113.273102][ T4913] __arm64_sys_sendto+0xd8/0xf8 [ 113.274446][ T4913] invoke_syscall+0x98/0x2b8 [ 113.275733][ T4913] el0_svc_common+0x138/0x258 [ 113.277008][ T4913] do_el0_svc+0x58/0x14c [ 113.278210][ T4913] el0_svc+0x78/0x1e0 [ 113.279282][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 113.280693][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 113.283612][ T4913] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.286677][ T4913] CPU: 1 PID: 4913 Comm: syz.0.36 Not tainted 5.15.185-syzkaller #0 [ 113.288835][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.291747][ T4913] Call trace: [ 113.292641][ T4913] dump_backtrace+0x0/0x43c [ 113.293817][ T4913] show_stack+0x2c/0x3c [ 113.294981][ T4913] __dump_stack+0x30/0x40 [ 113.296149][ T4913] dump_stack_lvl+0xf8/0x160 [ 113.297415][ T4913] dump_stack+0x1c/0x5c [ 113.298530][ T4913] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.300070][ T4913] dccp_xmit_packet+0x298/0x448 [ 113.301385][ T4913] dccp_write_xmit+0x118/0x1d0 [ 113.302601][ T4913] dccp_sendmsg+0x538/0x8a8 [ 113.303841][ T4913] inet_sendmsg+0x154/0x284 [ 113.305113][ T4913] __sys_sendto+0x2e8/0x3d8 [ 113.306345][ T4913] __arm64_sys_sendto+0xd8/0xf8 [ 113.307670][ T4913] invoke_syscall+0x98/0x2b8 [ 113.308951][ T4913] el0_svc_common+0x138/0x258 [ 113.310251][ T4913] do_el0_svc+0x58/0x14c [ 113.311420][ T4913] el0_svc+0x78/0x1e0 [ 113.312549][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 113.313891][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 113.340223][ T4915] dccp_xmit_packet: Payload too large (65475) for featneg. [ 113.354905][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.358031][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.360150][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.362798][ T4915] Call trace: [ 113.363628][ T4915] dump_backtrace+0x0/0x43c [ 113.364878][ T4915] show_stack+0x2c/0x3c [ 113.366051][ T4915] __dump_stack+0x30/0x40 [ 113.367205][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.368503][ T4915] dump_stack+0x1c/0x5c [ 113.369713][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.371275][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.372596][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.373886][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.375153][ T4915] inet_sendmsg+0x154/0x284 [ 113.376318][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.377537][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.378836][ T4915] invoke_syscall+0x98/0x2b8 [ 113.380079][ T4915] el0_svc_common+0x138/0x258 [ 113.381378][ T4915] do_el0_svc+0x58/0x14c [ 113.382516][ T4915] el0_svc+0x78/0x1e0 [ 113.383610][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.384980][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.387900][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.391127][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.393313][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.396045][ T4915] Call trace: [ 113.396899][ T4915] dump_backtrace+0x0/0x43c [ 113.398125][ T4915] show_stack+0x2c/0x3c [ 113.399298][ T4915] __dump_stack+0x30/0x40 [ 113.400496][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.401796][ T4915] dump_stack+0x1c/0x5c [ 113.402958][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.404457][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.405808][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.407067][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.408269][ T4915] inet_sendmsg+0x154/0x284 [ 113.409504][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.410728][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.412025][ T4915] invoke_syscall+0x98/0x2b8 [ 113.413254][ T4915] el0_svc_common+0x138/0x258 [ 113.414580][ T4915] do_el0_svc+0x58/0x14c [ 113.415737][ T4915] el0_svc+0x78/0x1e0 [ 113.416842][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.418300][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.420190][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.423162][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.425267][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.428177][ T4915] Call trace: [ 113.429034][ T4915] dump_backtrace+0x0/0x43c [ 113.430310][ T4915] show_stack+0x2c/0x3c [ 113.431455][ T4915] __dump_stack+0x30/0x40 [ 113.432620][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.433880][ T4915] dump_stack+0x1c/0x5c [ 113.434990][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.436441][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.437732][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.439090][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.440408][ T4915] inet_sendmsg+0x154/0x284 [ 113.441709][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.442939][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.444250][ T4915] invoke_syscall+0x98/0x2b8 [ 113.445560][ T4915] el0_svc_common+0x138/0x258 [ 113.446825][ T4915] do_el0_svc+0x58/0x14c [ 113.448008][ T4915] el0_svc+0x78/0x1e0 [ 113.449189][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.450592][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.452217][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.455514][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.457800][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.460552][ T4915] Call trace: [ 113.461437][ T4915] dump_backtrace+0x0/0x43c [ 113.462695][ T4915] show_stack+0x2c/0x3c [ 113.463847][ T4915] __dump_stack+0x30/0x40 [ 113.465081][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.466506][ T4915] dump_stack+0x1c/0x5c [ 113.467636][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.469328][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.470728][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.472140][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.473422][ T4915] inet_sendmsg+0x154/0x284 [ 113.474623][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.475891][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.477297][ T4915] invoke_syscall+0x98/0x2b8 [ 113.478603][ T4915] el0_svc_common+0x138/0x258 [ 113.479972][ T4915] do_el0_svc+0x58/0x14c [ 113.481172][ T4915] el0_svc+0x78/0x1e0 [ 113.482282][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.483636][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.485304][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.488395][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.490650][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.493413][ T4915] Call trace: [ 113.494294][ T4915] dump_backtrace+0x0/0x43c [ 113.495548][ T4915] show_stack+0x2c/0x3c [ 113.496677][ T4915] __dump_stack+0x30/0x40 [ 113.497885][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.499208][ T4915] dump_stack+0x1c/0x5c [ 113.500398][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.501975][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.503383][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.504725][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.505937][ T4915] inet_sendmsg+0x154/0x284 [ 113.507194][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.508477][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.509824][ T4915] invoke_syscall+0x98/0x2b8 [ 113.511112][ T4915] el0_svc_common+0x138/0x258 [ 113.512435][ T4915] do_el0_svc+0x58/0x14c [ 113.513651][ T4915] el0_svc+0x78/0x1e0 [ 113.514774][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.516226][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.518703][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.521804][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.524022][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.526836][ T4915] Call trace: [ 113.527752][ T4915] dump_backtrace+0x0/0x43c [ 113.528992][ T4915] show_stack+0x2c/0x3c [ 113.530168][ T4915] __dump_stack+0x30/0x40 [ 113.531343][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.532586][ T4915] dump_stack+0x1c/0x5c [ 113.533735][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.535276][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.536572][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.537905][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.539169][ T4915] inet_sendmsg+0x154/0x284 [ 113.540391][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.541691][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.542967][ T4915] invoke_syscall+0x98/0x2b8 [ 113.544231][ T4915] el0_svc_common+0x138/0x258 [ 113.545491][ T4915] do_el0_svc+0x58/0x14c [ 113.546690][ T4915] el0_svc+0x78/0x1e0 [ 113.547765][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.549194][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.551818][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.555016][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.557050][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.559826][ T4915] Call trace: [ 113.560670][ T4915] dump_backtrace+0x0/0x43c [ 113.561843][ T4915] show_stack+0x2c/0x3c [ 113.562985][ T4915] __dump_stack+0x30/0x40 [ 113.564136][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.565454][ T4915] dump_stack+0x1c/0x5c [ 113.566581][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.568098][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.569480][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.570808][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.572068][ T4915] inet_sendmsg+0x154/0x284 [ 113.573294][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.574566][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.575870][ T4915] invoke_syscall+0x98/0x2b8 [ 113.577173][ T4915] el0_svc_common+0x138/0x258 [ 113.578445][ T4915] do_el0_svc+0x58/0x14c [ 113.579693][ T4915] el0_svc+0x78/0x1e0 [ 113.580790][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.582224][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.585073][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.588198][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.590331][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.593095][ T4915] Call trace: [ 113.594055][ T4915] dump_backtrace+0x0/0x43c [ 113.595305][ T4915] show_stack+0x2c/0x3c [ 113.596431][ T4915] __dump_stack+0x30/0x40 [ 113.597669][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.598933][ T4915] dump_stack+0x1c/0x5c [ 113.600078][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.601578][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.603002][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.604362][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.605623][ T4915] inet_sendmsg+0x154/0x284 [ 113.606861][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.608241][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.609574][ T4915] invoke_syscall+0x98/0x2b8 [ 113.610851][ T4915] el0_svc_common+0x138/0x258 [ 113.612164][ T4915] do_el0_svc+0x58/0x14c [ 113.613325][ T4915] el0_svc+0x78/0x1e0 [ 113.614446][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.615816][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.618481][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.621418][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.623569][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.626406][ T4915] Call trace: [ 113.627338][ T4915] dump_backtrace+0x0/0x43c [ 113.628636][ T4915] show_stack+0x2c/0x3c [ 113.629748][ T4915] __dump_stack+0x30/0x40 [ 113.630929][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.632229][ T4915] dump_stack+0x1c/0x5c [ 113.633339][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.634888][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.636239][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.637557][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.638842][ T4915] inet_sendmsg+0x154/0x284 [ 113.640110][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.641323][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.642703][ T4915] invoke_syscall+0x98/0x2b8 [ 113.643999][ T4915] el0_svc_common+0x138/0x258 [ 113.645279][ T4915] do_el0_svc+0x58/0x14c [ 113.646434][ T4915] el0_svc+0x78/0x1e0 [ 113.647564][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.649007][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.651504][ T4915] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.656083][ T4915] CPU: 0 PID: 4915 Comm: syz.0.37 Not tainted 5.15.185-syzkaller #0 [ 113.658341][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.661064][ T4915] Call trace: [ 113.661942][ T4915] dump_backtrace+0x0/0x43c [ 113.663218][ T4915] show_stack+0x2c/0x3c [ 113.664452][ T4915] __dump_stack+0x30/0x40 [ 113.665739][ T4915] dump_stack_lvl+0xf8/0x160 [ 113.667081][ T4915] dump_stack+0x1c/0x5c [ 113.668271][ T4915] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.669747][ T4915] dccp_xmit_packet+0x298/0x448 [ 113.671068][ T4915] dccp_write_xmit+0x118/0x1d0 [ 113.672413][ T4915] dccp_sendmsg+0x538/0x8a8 [ 113.673679][ T4915] inet_sendmsg+0x154/0x284 [ 113.674908][ T4915] __sys_sendto+0x2e8/0x3d8 [ 113.676181][ T4915] __arm64_sys_sendto+0xd8/0xf8 [ 113.677555][ T4915] invoke_syscall+0x98/0x2b8 [ 113.678822][ T4915] el0_svc_common+0x138/0x258 [ 113.680100][ T4915] do_el0_svc+0x58/0x14c [ 113.681320][ T4915] el0_svc+0x78/0x1e0 [ 113.682416][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 113.683779][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 113.702880][ T4917] dccp_xmit_packet: Payload too large (65475) for featneg. [ 113.719112][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.722193][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.724358][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.727155][ T4917] Call trace: [ 113.728065][ T4917] dump_backtrace+0x0/0x43c [ 113.729328][ T4917] show_stack+0x2c/0x3c [ 113.730479][ T4917] __dump_stack+0x30/0x40 [ 113.731664][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.732919][ T4917] dump_stack+0x1c/0x5c [ 113.734123][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.735636][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.736950][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.738342][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.739580][ T4917] inet_sendmsg+0x154/0x284 [ 113.740842][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.742059][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.743383][ T4917] invoke_syscall+0x98/0x2b8 [ 113.744642][ T4917] el0_svc_common+0x138/0x258 [ 113.745975][ T4917] do_el0_svc+0x58/0x14c [ 113.747138][ T4917] el0_svc+0x78/0x1e0 [ 113.748217][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.749542][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.752702][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.755926][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.758052][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.760814][ T4917] Call trace: [ 113.761732][ T4917] dump_backtrace+0x0/0x43c [ 113.762976][ T4917] show_stack+0x2c/0x3c [ 113.764162][ T4917] __dump_stack+0x30/0x40 [ 113.765353][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.766615][ T4917] dump_stack+0x1c/0x5c [ 113.767710][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.769280][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.770635][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.771957][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.773188][ T4917] inet_sendmsg+0x154/0x284 [ 113.774476][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.775703][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.777005][ T4917] invoke_syscall+0x98/0x2b8 [ 113.778323][ T4917] el0_svc_common+0x138/0x258 [ 113.779673][ T4917] do_el0_svc+0x58/0x14c [ 113.780906][ T4917] el0_svc+0x78/0x1e0 [ 113.782034][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.783434][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.785303][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.788472][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.790631][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.793329][ T4917] Call trace: [ 113.794185][ T4917] dump_backtrace+0x0/0x43c [ 113.795438][ T4917] show_stack+0x2c/0x3c [ 113.796587][ T4917] __dump_stack+0x30/0x40 [ 113.797788][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.799020][ T4917] dump_stack+0x1c/0x5c [ 113.800240][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.801808][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.803130][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.804417][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.805735][ T4917] inet_sendmsg+0x154/0x284 [ 113.806982][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.808214][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.809552][ T4917] invoke_syscall+0x98/0x2b8 [ 113.810813][ T4917] el0_svc_common+0x138/0x258 [ 113.812089][ T4917] do_el0_svc+0x58/0x14c [ 113.813278][ T4917] el0_svc+0x78/0x1e0 [ 113.814344][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.815730][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.817446][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.820495][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.822666][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.825449][ T4917] Call trace: [ 113.826348][ T4917] dump_backtrace+0x0/0x43c [ 113.827603][ T4917] show_stack+0x2c/0x3c [ 113.828811][ T4917] __dump_stack+0x30/0x40 [ 113.830002][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.831243][ T4917] dump_stack+0x1c/0x5c [ 113.832437][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.833955][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.835275][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.836574][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.837819][ T4917] inet_sendmsg+0x154/0x284 [ 113.839123][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.840352][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.841710][ T4917] invoke_syscall+0x98/0x2b8 [ 113.842989][ T4917] el0_svc_common+0x138/0x258 [ 113.844279][ T4917] do_el0_svc+0x58/0x14c [ 113.845455][ T4917] el0_svc+0x78/0x1e0 [ 113.846604][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.848023][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.849865][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.852985][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.855253][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.857963][ T4917] Call trace: [ 113.858832][ T4917] dump_backtrace+0x0/0x43c [ 113.860042][ T4917] show_stack+0x2c/0x3c [ 113.861164][ T4917] __dump_stack+0x30/0x40 [ 113.862303][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.863529][ T4917] dump_stack+0x1c/0x5c [ 113.864628][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.866082][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.867389][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.868717][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.870015][ T4917] inet_sendmsg+0x154/0x284 [ 113.871283][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.872578][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.873873][ T4917] invoke_syscall+0x98/0x2b8 [ 113.875127][ T4917] el0_svc_common+0x138/0x258 [ 113.876456][ T4917] do_el0_svc+0x58/0x14c [ 113.877609][ T4917] el0_svc+0x78/0x1e0 [ 113.878664][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.880078][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.881718][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.884857][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.887060][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.889910][ T4917] Call trace: [ 113.890893][ T4917] dump_backtrace+0x0/0x43c [ 113.892115][ T4917] show_stack+0x2c/0x3c [ 113.893220][ T4917] __dump_stack+0x30/0x40 [ 113.894379][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.895653][ T4917] dump_stack+0x1c/0x5c [ 113.896812][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.898331][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.899608][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.900930][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.902210][ T4917] inet_sendmsg+0x154/0x284 [ 113.903479][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.904736][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.906032][ T4917] invoke_syscall+0x98/0x2b8 [ 113.907345][ T4917] el0_svc_common+0x138/0x258 [ 113.908648][ T4917] do_el0_svc+0x58/0x14c [ 113.909864][ T4917] el0_svc+0x78/0x1e0 [ 113.911019][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.912402][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.913986][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.917008][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.919229][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.922102][ T4917] Call trace: [ 113.922993][ T4917] dump_backtrace+0x0/0x43c [ 113.924250][ T4917] show_stack+0x2c/0x3c [ 113.925434][ T4917] __dump_stack+0x30/0x40 [ 113.926551][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.927854][ T4917] dump_stack+0x1c/0x5c [ 113.928968][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.930482][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.931746][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.933051][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.934335][ T4917] inet_sendmsg+0x154/0x284 [ 113.935628][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.936831][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.938168][ T4917] invoke_syscall+0x98/0x2b8 [ 113.939465][ T4917] el0_svc_common+0x138/0x258 [ 113.940799][ T4917] do_el0_svc+0x58/0x14c [ 113.941974][ T4917] el0_svc+0x78/0x1e0 [ 113.943121][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.944546][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.946510][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.949612][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.951773][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.954556][ T4917] Call trace: [ 113.955429][ T4917] dump_backtrace+0x0/0x43c [ 113.956713][ T4917] show_stack+0x2c/0x3c [ 113.957908][ T4917] __dump_stack+0x30/0x40 [ 113.959122][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.960459][ T4917] dump_stack+0x1c/0x5c [ 113.961626][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.963236][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.964683][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.965996][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.967287][ T4917] inet_sendmsg+0x154/0x284 [ 113.968583][ T4917] __sys_sendto+0x2e8/0x3d8 [ 113.969888][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 113.971230][ T4917] invoke_syscall+0x98/0x2b8 [ 113.972539][ T4917] el0_svc_common+0x138/0x258 [ 113.973878][ T4917] do_el0_svc+0x58/0x14c [ 113.975076][ T4917] el0_svc+0x78/0x1e0 [ 113.976216][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 113.977526][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 113.979062][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 113.982068][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 113.984223][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.986948][ T4917] Call trace: [ 113.987861][ T4917] dump_backtrace+0x0/0x43c [ 113.989122][ T4917] show_stack+0x2c/0x3c [ 113.990301][ T4917] __dump_stack+0x30/0x40 [ 113.991504][ T4917] dump_stack_lvl+0xf8/0x160 [ 113.992768][ T4917] dump_stack+0x1c/0x5c [ 113.993896][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 113.995532][ T4917] dccp_xmit_packet+0x298/0x448 [ 113.996838][ T4917] dccp_write_xmit+0x118/0x1d0 [ 113.998166][ T4917] dccp_sendmsg+0x538/0x8a8 [ 113.999416][ T4917] inet_sendmsg+0x154/0x284 [ 114.000655][ T4917] __sys_sendto+0x2e8/0x3d8 [ 114.001834][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 114.003148][ T4917] invoke_syscall+0x98/0x2b8 [ 114.004371][ T4917] el0_svc_common+0x138/0x258 [ 114.005644][ T4917] do_el0_svc+0x58/0x14c [ 114.006800][ T4917] el0_svc+0x78/0x1e0 [ 114.007857][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 114.009197][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 114.011011][ T4917] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.014126][ T4917] CPU: 0 PID: 4917 Comm: syz.0.38 Not tainted 5.15.185-syzkaller #0 [ 114.016313][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.018987][ T4917] Call trace: [ 114.019897][ T4917] dump_backtrace+0x0/0x43c [ 114.021108][ T4917] show_stack+0x2c/0x3c [ 114.022224][ T4917] __dump_stack+0x30/0x40 [ 114.023371][ T4917] dump_stack_lvl+0xf8/0x160 [ 114.024590][ T4917] dump_stack+0x1c/0x5c [ 114.025745][ T4917] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.027245][ T4917] dccp_xmit_packet+0x298/0x448 [ 114.028530][ T4917] dccp_write_xmit+0x118/0x1d0 [ 114.029866][ T4917] dccp_sendmsg+0x538/0x8a8 [ 114.031076][ T4917] inet_sendmsg+0x154/0x284 [ 114.032322][ T4917] __sys_sendto+0x2e8/0x3d8 [ 114.033583][ T4917] __arm64_sys_sendto+0xd8/0xf8 [ 114.034863][ T4917] invoke_syscall+0x98/0x2b8 [ 114.036174][ T4917] el0_svc_common+0x138/0x258 [ 114.037446][ T4917] do_el0_svc+0x58/0x14c [ 114.038637][ T4917] el0_svc+0x78/0x1e0 [ 114.039714][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 114.041056][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 114.058894][ T4919] dccp_xmit_packet: Payload too large (65475) for featneg. [ 114.073594][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.076682][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.078767][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.081497][ T4919] Call trace: [ 114.082367][ T4919] dump_backtrace+0x0/0x43c [ 114.083584][ T4919] show_stack+0x2c/0x3c [ 114.084688][ T4919] __dump_stack+0x30/0x40 [ 114.085843][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.087174][ T4919] dump_stack+0x1c/0x5c [ 114.088324][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.089868][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.091240][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.092524][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.093746][ T4919] inet_sendmsg+0x154/0x284 [ 114.095032][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.096291][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.097647][ T4919] invoke_syscall+0x98/0x2b8 [ 114.098977][ T4919] el0_svc_common+0x138/0x258 [ 114.100266][ T4919] do_el0_svc+0x58/0x14c [ 114.101442][ T4919] el0_svc+0x78/0x1e0 [ 114.102536][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.103940][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.106006][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.109173][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.111390][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.114197][ T4919] Call trace: [ 114.115124][ T4919] dump_backtrace+0x0/0x43c [ 114.116343][ T4919] show_stack+0x2c/0x3c [ 114.117456][ T4919] __dump_stack+0x30/0x40 [ 114.118696][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.120071][ T4919] dump_stack+0x1c/0x5c [ 114.121206][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.122766][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.124099][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.125350][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.126594][ T4919] inet_sendmsg+0x154/0x284 [ 114.127861][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.129112][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.130484][ T4919] invoke_syscall+0x98/0x2b8 [ 114.131771][ T4919] el0_svc_common+0x138/0x258 [ 114.133097][ T4919] do_el0_svc+0x58/0x14c [ 114.134346][ T4919] el0_svc+0x78/0x1e0 [ 114.135418][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.136827][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.138534][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.141595][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.143642][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.146379][ T4919] Call trace: [ 114.147294][ T4919] dump_backtrace+0x0/0x43c [ 114.148586][ T4919] show_stack+0x2c/0x3c [ 114.149728][ T4919] __dump_stack+0x30/0x40 [ 114.150892][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.152193][ T4919] dump_stack+0x1c/0x5c [ 114.153326][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.154904][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.156181][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.157494][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.158724][ T4919] inet_sendmsg+0x154/0x284 [ 114.160050][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.161287][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.162575][ T4919] invoke_syscall+0x98/0x2b8 [ 114.163814][ T4919] el0_svc_common+0x138/0x258 [ 114.165129][ T4919] do_el0_svc+0x58/0x14c [ 114.166287][ T4919] el0_svc+0x78/0x1e0 [ 114.167352][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.168729][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.170413][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.173609][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.175754][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.178612][ T4919] Call trace: [ 114.179534][ T4919] dump_backtrace+0x0/0x43c [ 114.180815][ T4919] show_stack+0x2c/0x3c [ 114.181995][ T4919] __dump_stack+0x30/0x40 [ 114.183181][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.184430][ T4919] dump_stack+0x1c/0x5c [ 114.185568][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.187117][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.188498][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.189828][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.191135][ T4919] inet_sendmsg+0x154/0x284 [ 114.192337][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.193553][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.194835][ T4919] invoke_syscall+0x98/0x2b8 [ 114.196158][ T4919] el0_svc_common+0x138/0x258 [ 114.197515][ T4919] do_el0_svc+0x58/0x14c [ 114.198688][ T4919] el0_svc+0x78/0x1e0 [ 114.199796][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.201107][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.202976][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.206169][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.208306][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.211015][ T4919] Call trace: [ 114.211870][ T4919] dump_backtrace+0x0/0x43c [ 114.213133][ T4919] show_stack+0x2c/0x3c [ 114.214285][ T4919] __dump_stack+0x30/0x40 [ 114.215473][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.216696][ T4919] dump_stack+0x1c/0x5c [ 114.217771][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.219217][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.220578][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.221893][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.223151][ T4919] inet_sendmsg+0x154/0x284 [ 114.224439][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.225610][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.226937][ T4919] invoke_syscall+0x98/0x2b8 [ 114.228337][ T4919] el0_svc_common+0x138/0x258 [ 114.229606][ T4919] do_el0_svc+0x58/0x14c [ 114.230802][ T4919] el0_svc+0x78/0x1e0 [ 114.231904][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.233241][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.234762][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.237884][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.240033][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.242628][ T4919] Call trace: [ 114.243537][ T4919] dump_backtrace+0x0/0x43c [ 114.244783][ T4919] show_stack+0x2c/0x3c [ 114.245951][ T4919] __dump_stack+0x30/0x40 [ 114.247139][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.248341][ T4919] dump_stack+0x1c/0x5c [ 114.249475][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.250919][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.252290][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.253565][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.254820][ T4919] inet_sendmsg+0x154/0x284 [ 114.256101][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.257279][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.258600][ T4919] invoke_syscall+0x98/0x2b8 [ 114.259900][ T4919] el0_svc_common+0x138/0x258 [ 114.261184][ T4919] do_el0_svc+0x58/0x14c [ 114.262359][ T4919] el0_svc+0x78/0x1e0 [ 114.263419][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.264758][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.266406][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.269304][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.271406][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.274129][ T4919] Call trace: [ 114.275020][ T4919] dump_backtrace+0x0/0x43c [ 114.276281][ T4919] show_stack+0x2c/0x3c [ 114.277451][ T4919] __dump_stack+0x30/0x40 [ 114.278614][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.279871][ T4919] dump_stack+0x1c/0x5c [ 114.280996][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.282535][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.283907][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.285207][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.286382][ T4919] inet_sendmsg+0x154/0x284 [ 114.287549][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.288864][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.290178][ T4919] invoke_syscall+0x98/0x2b8 [ 114.291484][ T4919] el0_svc_common+0x138/0x258 [ 114.292786][ T4919] do_el0_svc+0x58/0x14c [ 114.293944][ T4919] el0_svc+0x78/0x1e0 [ 114.295300][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.296657][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.298266][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.301275][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.303369][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.306129][ T4919] Call trace: [ 114.306990][ T4919] dump_backtrace+0x0/0x43c [ 114.308226][ T4919] show_stack+0x2c/0x3c [ 114.309394][ T4919] __dump_stack+0x30/0x40 [ 114.310555][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.311782][ T4919] dump_stack+0x1c/0x5c [ 114.312935][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.314454][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.315742][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.317066][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.318267][ T4919] inet_sendmsg+0x154/0x284 [ 114.319541][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.320726][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.322020][ T4919] invoke_syscall+0x98/0x2b8 [ 114.323271][ T4919] el0_svc_common+0x138/0x258 [ 114.324571][ T4919] do_el0_svc+0x58/0x14c [ 114.325831][ T4919] el0_svc+0x78/0x1e0 [ 114.326955][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.328362][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.329905][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.332871][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.335156][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.337898][ T4919] Call trace: [ 114.338818][ T4919] dump_backtrace+0x0/0x43c [ 114.340085][ T4919] show_stack+0x2c/0x3c [ 114.341222][ T4919] __dump_stack+0x30/0x40 [ 114.342395][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.343713][ T4919] dump_stack+0x1c/0x5c [ 114.344841][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.346320][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.347579][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.348863][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.350104][ T4919] inet_sendmsg+0x154/0x284 [ 114.351316][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.352610][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.353886][ T4919] invoke_syscall+0x98/0x2b8 [ 114.355085][ T4919] el0_svc_common+0x138/0x258 [ 114.356375][ T4919] do_el0_svc+0x58/0x14c [ 114.357555][ T4919] el0_svc+0x78/0x1e0 [ 114.358652][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.359972][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.361570][ T4919] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.364756][ T4919] CPU: 0 PID: 4919 Comm: syz.0.39 Not tainted 5.15.185-syzkaller #0 [ 114.366886][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.369565][ T4919] Call trace: [ 114.370412][ T4919] dump_backtrace+0x0/0x43c [ 114.371599][ T4919] show_stack+0x2c/0x3c [ 114.372730][ T4919] __dump_stack+0x30/0x40 [ 114.373926][ T4919] dump_stack_lvl+0xf8/0x160 [ 114.375186][ T4919] dump_stack+0x1c/0x5c [ 114.376318][ T4919] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.377885][ T4919] dccp_xmit_packet+0x298/0x448 [ 114.379244][ T4919] dccp_write_xmit+0x118/0x1d0 [ 114.380479][ T4919] dccp_sendmsg+0x538/0x8a8 [ 114.381743][ T4919] inet_sendmsg+0x154/0x284 [ 114.383031][ T4919] __sys_sendto+0x2e8/0x3d8 [ 114.384341][ T4919] __arm64_sys_sendto+0xd8/0xf8 [ 114.385723][ T4919] invoke_syscall+0x98/0x2b8 [ 114.387116][ T4919] el0_svc_common+0x138/0x258 [ 114.388335][ T4919] do_el0_svc+0x58/0x14c [ 114.389545][ T4919] el0_svc+0x78/0x1e0 [ 114.390680][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 114.392034][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 114.411985][ T4921] dccp_xmit_packet: Payload too large (65475) for featneg. [ 114.426941][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.430008][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.432081][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.434775][ T4921] Call trace: [ 114.435663][ T4921] dump_backtrace+0x0/0x43c [ 114.436821][ T4921] show_stack+0x2c/0x3c [ 114.437939][ T4921] __dump_stack+0x30/0x40 [ 114.439089][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.440332][ T4921] dump_stack+0x1c/0x5c [ 114.441508][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.442941][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.444238][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.445490][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.446691][ T4921] inet_sendmsg+0x154/0x284 [ 114.447929][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.449158][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.450500][ T4921] invoke_syscall+0x98/0x2b8 [ 114.451719][ T4921] el0_svc_common+0x138/0x258 [ 114.452971][ T4921] do_el0_svc+0x58/0x14c [ 114.454169][ T4921] el0_svc+0x78/0x1e0 [ 114.455238][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.456540][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.459726][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.462787][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.464896][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.467599][ T4921] Call trace: [ 114.468517][ T4921] dump_backtrace+0x0/0x43c [ 114.469795][ T4921] show_stack+0x2c/0x3c [ 114.471030][ T4921] __dump_stack+0x30/0x40 [ 114.472193][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.473426][ T4921] dump_stack+0x1c/0x5c [ 114.474554][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.476022][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.477363][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.478716][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.479862][ T4921] inet_sendmsg+0x154/0x284 [ 114.481113][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.482371][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.483676][ T4921] invoke_syscall+0x98/0x2b8 [ 114.484926][ T4921] el0_svc_common+0x138/0x258 [ 114.486153][ T4921] do_el0_svc+0x58/0x14c [ 114.487339][ T4921] el0_svc+0x78/0x1e0 [ 114.488391][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.489717][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.491305][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.494385][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.496629][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.499272][ T4921] Call trace: [ 114.500111][ T4921] dump_backtrace+0x0/0x43c [ 114.501326][ T4921] show_stack+0x2c/0x3c [ 114.502492][ T4921] __dump_stack+0x30/0x40 [ 114.503614][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.504833][ T4921] dump_stack+0x1c/0x5c [ 114.505959][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.507439][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.508773][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.510109][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.511345][ T4921] inet_sendmsg+0x154/0x284 [ 114.512541][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.513833][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.515148][ T4921] invoke_syscall+0x98/0x2b8 [ 114.516425][ T4921] el0_svc_common+0x138/0x258 [ 114.517698][ T4921] do_el0_svc+0x58/0x14c [ 114.518807][ T4921] el0_svc+0x78/0x1e0 [ 114.519936][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.521289][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.522881][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.525976][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.528081][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.530686][ T4921] Call trace: [ 114.531581][ T4921] dump_backtrace+0x0/0x43c [ 114.532790][ T4921] show_stack+0x2c/0x3c [ 114.533871][ T4921] __dump_stack+0x30/0x40 [ 114.535045][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.536298][ T4921] dump_stack+0x1c/0x5c [ 114.537440][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.538934][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.540228][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.541513][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.542685][ T4921] inet_sendmsg+0x154/0x284 [ 114.543895][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.545114][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.546484][ T4921] invoke_syscall+0x98/0x2b8 [ 114.547716][ T4921] el0_svc_common+0x138/0x258 [ 114.548987][ T4921] do_el0_svc+0x58/0x14c [ 114.550176][ T4921] el0_svc+0x78/0x1e0 [ 114.551250][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.552645][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.554457][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.557530][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.559703][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.562379][ T4921] Call trace: [ 114.563224][ T4921] dump_backtrace+0x0/0x43c [ 114.564519][ T4921] show_stack+0x2c/0x3c [ 114.565632][ T4921] __dump_stack+0x30/0x40 [ 114.566824][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.568051][ T4921] dump_stack+0x1c/0x5c [ 114.569131][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.570594][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.571983][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.573351][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.574633][ T4921] inet_sendmsg+0x154/0x284 [ 114.575937][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.577204][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.578517][ T4921] invoke_syscall+0x98/0x2b8 [ 114.579766][ T4921] el0_svc_common+0x138/0x258 [ 114.581016][ T4921] do_el0_svc+0x58/0x14c [ 114.582244][ T4921] el0_svc+0x78/0x1e0 [ 114.583289][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.584650][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.586271][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.589216][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.591350][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.594070][ T4921] Call trace: [ 114.594955][ T4921] dump_backtrace+0x0/0x43c [ 114.596167][ T4921] show_stack+0x2c/0x3c [ 114.597331][ T4921] __dump_stack+0x30/0x40 [ 114.598532][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.599796][ T4921] dump_stack+0x1c/0x5c [ 114.600916][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.602407][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.603713][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.604969][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.606173][ T4921] inet_sendmsg+0x154/0x284 [ 114.607447][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.608666][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.610060][ T4921] invoke_syscall+0x98/0x2b8 [ 114.611358][ T4921] el0_svc_common+0x138/0x258 [ 114.612606][ T4921] do_el0_svc+0x58/0x14c [ 114.613868][ T4921] el0_svc+0x78/0x1e0 [ 114.614942][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.616332][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.618618][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.621600][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.623714][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.626526][ T4921] Call trace: [ 114.627384][ T4921] dump_backtrace+0x0/0x43c [ 114.628598][ T4921] show_stack+0x2c/0x3c [ 114.629778][ T4921] __dump_stack+0x30/0x40 [ 114.630979][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.632252][ T4921] dump_stack+0x1c/0x5c [ 114.633412][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.634879][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.636209][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.637489][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.638752][ T4921] inet_sendmsg+0x154/0x284 [ 114.640039][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.641257][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.642588][ T4921] invoke_syscall+0x98/0x2b8 [ 114.643867][ T4921] el0_svc_common+0x138/0x258 [ 114.645126][ T4921] do_el0_svc+0x58/0x14c [ 114.646282][ T4921] el0_svc+0x78/0x1e0 [ 114.647443][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.648935][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.650539][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.653597][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.655796][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.658654][ T4921] Call trace: [ 114.659550][ T4921] dump_backtrace+0x0/0x43c [ 114.660772][ T4921] show_stack+0x2c/0x3c [ 114.661929][ T4921] __dump_stack+0x30/0x40 [ 114.663132][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.664394][ T4921] dump_stack+0x1c/0x5c [ 114.665569][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.667050][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.668443][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.669931][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.671816][ T4921] inet_sendmsg+0x154/0x284 [ 114.673057][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.674280][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.675516][ T4921] invoke_syscall+0x98/0x2b8 [ 114.676815][ T4921] el0_svc_common+0x138/0x258 [ 114.678087][ T4921] do_el0_svc+0x58/0x14c [ 114.679242][ T4921] el0_svc+0x78/0x1e0 [ 114.680341][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.681764][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.683420][ T4921] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.686486][ T4921] CPU: 0 PID: 4921 Comm: syz.0.40 Not tainted 5.15.185-syzkaller #0 [ 114.688532][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.691252][ T4921] Call trace: [ 114.692137][ T4921] dump_backtrace+0x0/0x43c [ 114.693331][ T4921] show_stack+0x2c/0x3c [ 114.694484][ T4921] __dump_stack+0x30/0x40 [ 114.695719][ T4921] dump_stack_lvl+0xf8/0x160 [ 114.696979][ T4921] dump_stack+0x1c/0x5c [ 114.698181][ T4921] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.699674][ T4921] dccp_xmit_packet+0x298/0x448 [ 114.700928][ T4921] dccp_write_xmit+0x118/0x1d0 [ 114.702235][ T4921] dccp_sendmsg+0x538/0x8a8 [ 114.703497][ T4921] inet_sendmsg+0x154/0x284 [ 114.704782][ T4921] __sys_sendto+0x2e8/0x3d8 [ 114.706078][ T4921] __arm64_sys_sendto+0xd8/0xf8 [ 114.707420][ T4921] invoke_syscall+0x98/0x2b8 [ 114.708688][ T4921] el0_svc_common+0x138/0x258 [ 114.709973][ T4921] do_el0_svc+0x58/0x14c [ 114.711108][ T4921] el0_svc+0x78/0x1e0 [ 114.712231][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 114.713645][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 114.732324][ T4923] dccp_xmit_packet: Payload too large (65475) for featneg. [ 114.748295][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.751486][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.753705][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.756445][ T4923] Call trace: [ 114.757369][ T4923] dump_backtrace+0x0/0x43c [ 114.758706][ T4923] show_stack+0x2c/0x3c [ 114.760013][ T4923] __dump_stack+0x30/0x40 [ 114.761158][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.762473][ T4923] dump_stack+0x1c/0x5c [ 114.763628][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.765155][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.766541][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.767942][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.769219][ T4923] inet_sendmsg+0x154/0x284 [ 114.770475][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.771721][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 114.773062][ T4923] invoke_syscall+0x98/0x2b8 [ 114.774334][ T4923] el0_svc_common+0x138/0x258 [ 114.775592][ T4923] do_el0_svc+0x58/0x14c [ 114.776787][ T4923] el0_svc+0x78/0x1e0 [ 114.777852][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 114.779199][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 114.782249][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.785781][ T4923] CPU: 0 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.787993][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.790831][ T4923] Call trace: [ 114.791738][ T4923] dump_backtrace+0x0/0x43c [ 114.792976][ T4923] show_stack+0x2c/0x3c [ 114.794090][ T4923] __dump_stack+0x30/0x40 [ 114.795284][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.796507][ T4923] dump_stack+0x1c/0x5c [ 114.797707][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.799247][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.800557][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.801871][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.803077][ T4923] inet_sendmsg+0x154/0x284 [ 114.804270][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.805483][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 114.806778][ T4923] invoke_syscall+0x98/0x2b8 [ 114.808015][ T4923] el0_svc_common+0x138/0x258 [ 114.809240][ T4923] do_el0_svc+0x58/0x14c [ 114.810431][ T4923] el0_svc+0x78/0x1e0 [ 114.811529][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 114.812888][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 114.816449][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.819624][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.821779][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.824468][ T4923] Call trace: [ 114.825368][ T4923] dump_backtrace+0x0/0x43c [ 114.826584][ T4923] show_stack+0x2c/0x3c [ 114.827727][ T4923] __dump_stack+0x30/0x40 [ 114.828931][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.830180][ T4923] dump_stack+0x1c/0x5c [ 114.831350][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.832786][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.834206][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.835474][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.836646][ T4923] inet_sendmsg+0x154/0x284 [ 114.837864][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.839122][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 114.840489][ T4923] invoke_syscall+0x98/0x2b8 [ 114.841790][ T4923] el0_svc_common+0x138/0x258 [ 114.843086][ T4923] do_el0_svc+0x58/0x14c [ 114.844289][ T4923] el0_svc+0x78/0x1e0 [ 114.845432][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 114.846802][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 114.849524][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.852717][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.854949][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.857837][ T4923] Call trace: [ 114.859011][ T4923] dump_backtrace+0x0/0x43c [ 114.860219][ T4923] show_stack+0x2c/0x3c [ 114.861360][ T4923] __dump_stack+0x30/0x40 [ 114.862576][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.863781][ T4923] dump_stack+0x1c/0x5c [ 114.864890][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.866437][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.867887][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.869264][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.870527][ T4923] inet_sendmsg+0x154/0x284 [ 114.871742][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.873020][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 114.874386][ T4923] invoke_syscall+0x98/0x2b8 [ 114.875770][ T4923] el0_svc_common+0x138/0x258 [ 114.877075][ T4923] do_el0_svc+0x58/0x14c [ 114.878269][ T4923] el0_svc+0x78/0x1e0 [ 114.879374][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 114.880866][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 114.882565][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.885837][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.888013][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.890676][ T4923] Call trace: [ 114.891566][ T4923] dump_backtrace+0x0/0x43c [ 114.892700][ T4923] show_stack+0x2c/0x3c [ 114.893860][ T4923] __dump_stack+0x30/0x40 [ 114.894996][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.896215][ T4923] dump_stack+0x1c/0x5c [ 114.897366][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.898815][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.900105][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.901398][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.902612][ T4923] inet_sendmsg+0x154/0x284 [ 114.903846][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.905065][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 114.906557][ T4923] invoke_syscall+0x98/0x2b8 [ 114.907825][ T4923] el0_svc_common+0x138/0x258 [ 114.909110][ T4923] do_el0_svc+0x58/0x14c [ 114.910255][ T4923] el0_svc+0x78/0x1e0 [ 114.911304][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 114.912659][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 114.914320][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.917589][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.919735][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.922413][ T4923] Call trace: [ 114.923269][ T4923] dump_backtrace+0x0/0x43c [ 114.924504][ T4923] show_stack+0x2c/0x3c [ 114.925625][ T4923] __dump_stack+0x30/0x40 [ 114.926804][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.928058][ T4923] dump_stack+0x1c/0x5c [ 114.929204][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.930636][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.931969][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.933271][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.934441][ T4923] inet_sendmsg+0x154/0x284 [ 114.935701][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.936859][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 114.938157][ T4923] invoke_syscall+0x98/0x2b8 [ 114.939414][ T4923] el0_svc_common+0x138/0x258 [ 114.940647][ T4923] do_el0_svc+0x58/0x14c [ 114.941795][ T4923] el0_svc+0x78/0x1e0 [ 114.942823][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 114.944159][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 114.945741][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.948621][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.950651][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.953279][ T4923] Call trace: [ 114.954150][ T4923] dump_backtrace+0x0/0x43c [ 114.955283][ T4923] show_stack+0x2c/0x3c [ 114.956375][ T4923] __dump_stack+0x30/0x40 [ 114.957540][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.958747][ T4923] dump_stack+0x1c/0x5c [ 114.959911][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.961348][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.962618][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.963902][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.965159][ T4923] inet_sendmsg+0x154/0x284 [ 114.966365][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.967560][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 114.968849][ T4923] invoke_syscall+0x98/0x2b8 [ 114.970061][ T4923] el0_svc_common+0x138/0x258 [ 114.971305][ T4923] do_el0_svc+0x58/0x14c [ 114.972429][ T4923] el0_svc+0x78/0x1e0 [ 114.973478][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 114.974808][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 114.976894][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 114.979868][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 114.981975][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.984807][ T4923] Call trace: [ 114.985704][ T4923] dump_backtrace+0x0/0x43c [ 114.986896][ T4923] show_stack+0x2c/0x3c [ 114.988047][ T4923] __dump_stack+0x30/0x40 [ 114.989328][ T4923] dump_stack_lvl+0xf8/0x160 [ 114.990623][ T4923] dump_stack+0x1c/0x5c [ 114.991803][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 114.993409][ T4923] dccp_xmit_packet+0x298/0x448 [ 114.994763][ T4923] dccp_write_xmit+0x118/0x1d0 [ 114.996104][ T4923] dccp_sendmsg+0x538/0x8a8 [ 114.997370][ T4923] inet_sendmsg+0x154/0x284 [ 114.998608][ T4923] __sys_sendto+0x2e8/0x3d8 [ 114.999892][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 115.001265][ T4923] invoke_syscall+0x98/0x2b8 [ 115.002615][ T4923] el0_svc_common+0x138/0x258 [ 115.003937][ T4923] do_el0_svc+0x58/0x14c [ 115.005202][ T4923] el0_svc+0x78/0x1e0 [ 115.006278][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 115.007693][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 115.009245][ T4923] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.012307][ T4923] CPU: 1 PID: 4923 Comm: syz.0.41 Not tainted 5.15.185-syzkaller #0 [ 115.014601][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.017353][ T4923] Call trace: [ 115.018309][ T4923] dump_backtrace+0x0/0x43c [ 115.019618][ T4923] show_stack+0x2c/0x3c [ 115.020755][ T4923] __dump_stack+0x30/0x40 [ 115.021956][ T4923] dump_stack_lvl+0xf8/0x160 [ 115.023309][ T4923] dump_stack+0x1c/0x5c [ 115.024510][ T4923] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.026021][ T4923] dccp_xmit_packet+0x298/0x448 [ 115.027420][ T4923] dccp_write_xmit+0x118/0x1d0 [ 115.028711][ T4923] dccp_sendmsg+0x538/0x8a8 [ 115.029939][ T4923] inet_sendmsg+0x154/0x284 [ 115.031164][ T4923] __sys_sendto+0x2e8/0x3d8 [ 115.032465][ T4923] __arm64_sys_sendto+0xd8/0xf8 [ 115.033834][ T4923] invoke_syscall+0x98/0x2b8 [ 115.035125][ T4923] el0_svc_common+0x138/0x258 [ 115.036483][ T4923] do_el0_svc+0x58/0x14c [ 115.037654][ T4923] el0_svc+0x78/0x1e0 [ 115.038795][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 115.040228][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 115.058614][ T4925] dccp_xmit_packet: Payload too large (65475) for featneg. [ 115.074798][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.077940][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.080130][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.082794][ T4925] Call trace: [ 115.083662][ T4925] dump_backtrace+0x0/0x43c [ 115.084804][ T4925] show_stack+0x2c/0x3c [ 115.085952][ T4925] __dump_stack+0x30/0x40 [ 115.087087][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.088316][ T4925] dump_stack+0x1c/0x5c [ 115.089522][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.091017][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.092336][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.093705][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.094922][ T4925] inet_sendmsg+0x154/0x284 [ 115.096206][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.097495][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.098784][ T4925] invoke_syscall+0x98/0x2b8 [ 115.100026][ T4925] el0_svc_common+0x138/0x258 [ 115.101297][ T4925] do_el0_svc+0x58/0x14c [ 115.102418][ T4925] el0_svc+0x78/0x1e0 [ 115.103499][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.104796][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.106983][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.110061][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.112222][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.115017][ T4925] Call trace: [ 115.115906][ T4925] dump_backtrace+0x0/0x43c [ 115.117075][ T4925] show_stack+0x2c/0x3c [ 115.118222][ T4925] __dump_stack+0x30/0x40 [ 115.119427][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.120733][ T4925] dump_stack+0x1c/0x5c [ 115.121882][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.123360][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.124636][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.125937][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.127157][ T4925] inet_sendmsg+0x154/0x284 [ 115.128385][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.129659][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.130995][ T4925] invoke_syscall+0x98/0x2b8 [ 115.132274][ T4925] el0_svc_common+0x138/0x258 [ 115.133570][ T4925] do_el0_svc+0x58/0x14c [ 115.134720][ T4925] el0_svc+0x78/0x1e0 [ 115.135852][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.137244][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.139172][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.142425][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.144611][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.147386][ T4925] Call trace: [ 115.148300][ T4925] dump_backtrace+0x0/0x43c [ 115.149693][ T4925] show_stack+0x2c/0x3c [ 115.150814][ T4925] __dump_stack+0x30/0x40 [ 115.152032][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.153290][ T4925] dump_stack+0x1c/0x5c [ 115.154456][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.155922][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.157280][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.158542][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.159890][ T4925] inet_sendmsg+0x154/0x284 [ 115.161109][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.162386][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.163718][ T4925] invoke_syscall+0x98/0x2b8 [ 115.165080][ T4925] el0_svc_common+0x138/0x258 [ 115.166449][ T4925] do_el0_svc+0x58/0x14c [ 115.167627][ T4925] el0_svc+0x78/0x1e0 [ 115.168726][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.170115][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.172051][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.175203][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.177362][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.179996][ T4925] Call trace: [ 115.180867][ T4925] dump_backtrace+0x0/0x43c [ 115.182104][ T4925] show_stack+0x2c/0x3c [ 115.183213][ T4925] __dump_stack+0x30/0x40 [ 115.184460][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.185722][ T4925] dump_stack+0x1c/0x5c [ 115.186864][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.188313][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.189627][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.190916][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.192183][ T4925] inet_sendmsg+0x154/0x284 [ 115.193391][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.194676][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.196018][ T4925] invoke_syscall+0x98/0x2b8 [ 115.197297][ T4925] el0_svc_common+0x138/0x258 [ 115.198584][ T4925] do_el0_svc+0x58/0x14c [ 115.199793][ T4925] el0_svc+0x78/0x1e0 [ 115.200985][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.202499][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.204210][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.207244][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.209341][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.211952][ T4925] Call trace: [ 115.212813][ T4925] dump_backtrace+0x0/0x43c [ 115.214056][ T4925] show_stack+0x2c/0x3c [ 115.215231][ T4925] __dump_stack+0x30/0x40 [ 115.216502][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.217779][ T4925] dump_stack+0x1c/0x5c [ 115.218893][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.220487][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.221837][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.223101][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.224472][ T4925] inet_sendmsg+0x154/0x284 [ 115.225798][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.227034][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.228303][ T4925] invoke_syscall+0x98/0x2b8 [ 115.229561][ T4925] el0_svc_common+0x138/0x258 [ 115.230847][ T4925] do_el0_svc+0x58/0x14c [ 115.232035][ T4925] el0_svc+0x78/0x1e0 [ 115.233130][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.234509][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.237159][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.240261][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.242389][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.245044][ T4925] Call trace: [ 115.245972][ T4925] dump_backtrace+0x0/0x43c [ 115.247190][ T4925] show_stack+0x2c/0x3c [ 115.248329][ T4925] __dump_stack+0x30/0x40 [ 115.249522][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.250854][ T4925] dump_stack+0x1c/0x5c [ 115.252041][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.253514][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.254928][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.256218][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.257457][ T4925] inet_sendmsg+0x154/0x284 [ 115.258661][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.259896][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.261241][ T4925] invoke_syscall+0x98/0x2b8 [ 115.262575][ T4925] el0_svc_common+0x138/0x258 [ 115.263889][ T4925] do_el0_svc+0x58/0x14c [ 115.265028][ T4925] el0_svc+0x78/0x1e0 [ 115.266099][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.267446][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.269054][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.272028][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.274262][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.276967][ T4925] Call trace: [ 115.277883][ T4925] dump_backtrace+0x0/0x43c [ 115.279148][ T4925] show_stack+0x2c/0x3c [ 115.280273][ T4925] __dump_stack+0x30/0x40 [ 115.281473][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.282986][ T4925] dump_stack+0x1c/0x5c [ 115.284204][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.285850][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.287167][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.288577][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.289790][ T4925] inet_sendmsg+0x154/0x284 [ 115.291006][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.292250][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.293604][ T4925] invoke_syscall+0x98/0x2b8 [ 115.294870][ T4925] el0_svc_common+0x138/0x258 [ 115.296153][ T4925] do_el0_svc+0x58/0x14c [ 115.297295][ T4925] el0_svc+0x78/0x1e0 [ 115.298418][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.299871][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.301546][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.304679][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.306548][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.309363][ T4925] Call trace: [ 115.310192][ T4925] dump_backtrace+0x0/0x43c [ 115.311367][ T4925] show_stack+0x2c/0x3c [ 115.312468][ T4925] __dump_stack+0x30/0x40 [ 115.313644][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.314853][ T4925] dump_stack+0x1c/0x5c [ 115.316017][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.317447][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.318833][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.320153][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.321386][ T4925] inet_sendmsg+0x154/0x284 [ 115.322597][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.323814][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.325158][ T4925] invoke_syscall+0x98/0x2b8 [ 115.326993][ T4925] el0_svc_common+0x138/0x258 [ 115.328219][ T4925] do_el0_svc+0x58/0x14c [ 115.329403][ T4925] el0_svc+0x78/0x1e0 [ 115.330468][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.331840][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.333703][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.336753][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.338877][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.341621][ T4925] Call trace: [ 115.342556][ T4925] dump_backtrace+0x0/0x43c [ 115.343772][ T4925] show_stack+0x2c/0x3c [ 115.344886][ T4925] __dump_stack+0x30/0x40 [ 115.346113][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.347458][ T4925] dump_stack+0x1c/0x5c [ 115.348579][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.350067][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.351406][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.352758][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.354023][ T4925] inet_sendmsg+0x154/0x284 [ 115.355323][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.356533][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.357867][ T4925] invoke_syscall+0x98/0x2b8 [ 115.359099][ T4925] el0_svc_common+0x138/0x258 [ 115.360349][ T4925] do_el0_svc+0x58/0x14c [ 115.361457][ T4925] el0_svc+0x78/0x1e0 [ 115.362545][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.363895][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.366006][ T4925] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.368942][ T4925] CPU: 1 PID: 4925 Comm: syz.0.42 Not tainted 5.15.185-syzkaller #0 [ 115.371062][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.373806][ T4925] Call trace: [ 115.374687][ T4925] dump_backtrace+0x0/0x43c [ 115.375905][ T4925] show_stack+0x2c/0x3c [ 115.377061][ T4925] __dump_stack+0x30/0x40 [ 115.378216][ T4925] dump_stack_lvl+0xf8/0x160 [ 115.379507][ T4925] dump_stack+0x1c/0x5c [ 115.380613][ T4925] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.382130][ T4925] dccp_xmit_packet+0x298/0x448 [ 115.383463][ T4925] dccp_write_xmit+0x118/0x1d0 [ 115.384795][ T4925] dccp_sendmsg+0x538/0x8a8 [ 115.386041][ T4925] inet_sendmsg+0x154/0x284 [ 115.387251][ T4925] __sys_sendto+0x2e8/0x3d8 [ 115.388463][ T4925] __arm64_sys_sendto+0xd8/0xf8 [ 115.389719][ T4925] invoke_syscall+0x98/0x2b8 [ 115.390959][ T4925] el0_svc_common+0x138/0x258 [ 115.392233][ T4925] do_el0_svc+0x58/0x14c [ 115.393337][ T4925] el0_svc+0x78/0x1e0 [ 115.394418][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 115.395794][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 115.427077][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.430647][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.432851][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.435707][ T4927] Call trace: [ 115.436614][ T4927] dump_backtrace+0x0/0x43c [ 115.437877][ T4927] show_stack+0x2c/0x3c [ 115.439157][ T4927] __dump_stack+0x30/0x40 [ 115.440448][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.441748][ T4927] dump_stack+0x1c/0x5c [ 115.442864][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.444426][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.445761][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.447053][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.448289][ T4927] inet_sendmsg+0x154/0x284 [ 115.449560][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.450826][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.452171][ T4927] invoke_syscall+0x98/0x2b8 [ 115.453533][ T4927] el0_svc_common+0x138/0x258 [ 115.454844][ T4927] do_el0_svc+0x58/0x14c [ 115.456019][ T4927] el0_svc+0x78/0x1e0 [ 115.457139][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.458622][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.460672][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.463723][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.465920][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.468680][ T4927] Call trace: [ 115.469557][ T4927] dump_backtrace+0x0/0x43c [ 115.470783][ T4927] show_stack+0x2c/0x3c [ 115.471942][ T4927] __dump_stack+0x30/0x40 [ 115.473173][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.474560][ T4927] dump_stack+0x1c/0x5c [ 115.475765][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.477271][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.478615][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.479878][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.481109][ T4927] inet_sendmsg+0x154/0x284 [ 115.482387][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.483743][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.485107][ T4927] invoke_syscall+0x98/0x2b8 [ 115.486408][ T4927] el0_svc_common+0x138/0x258 [ 115.487746][ T4927] do_el0_svc+0x58/0x14c [ 115.488923][ T4927] el0_svc+0x78/0x1e0 [ 115.490052][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.491425][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.493541][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.496580][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.498797][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.501453][ T4927] Call trace: [ 115.502360][ T4927] dump_backtrace+0x0/0x43c [ 115.503572][ T4927] show_stack+0x2c/0x3c [ 115.504746][ T4927] __dump_stack+0x30/0x40 [ 115.505959][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.507317][ T4927] dump_stack+0x1c/0x5c [ 115.508485][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.510115][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.511496][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.512882][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.514103][ T4927] inet_sendmsg+0x154/0x284 [ 115.515346][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.516566][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.517900][ T4927] invoke_syscall+0x98/0x2b8 [ 115.519297][ T4927] el0_svc_common+0x138/0x258 [ 115.520658][ T4927] do_el0_svc+0x58/0x14c [ 115.521940][ T4927] el0_svc+0x78/0x1e0 [ 115.523103][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.524509][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.526298][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.529584][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.531880][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.534841][ T4927] Call trace: [ 115.535736][ T4927] dump_backtrace+0x0/0x43c [ 115.537004][ T4927] show_stack+0x2c/0x3c [ 115.538331][ T4927] __dump_stack+0x30/0x40 [ 115.539491][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.540820][ T4927] dump_stack+0x1c/0x5c [ 115.541970][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.543562][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.544894][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.546234][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.547466][ T4927] inet_sendmsg+0x154/0x284 [ 115.548689][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.549856][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.551294][ T4927] invoke_syscall+0x98/0x2b8 [ 115.552504][ T4927] el0_svc_common+0x138/0x258 [ 115.553768][ T4927] do_el0_svc+0x58/0x14c [ 115.554931][ T4927] el0_svc+0x78/0x1e0 [ 115.555976][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.557361][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.559386][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.562660][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.564871][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.567614][ T4927] Call trace: [ 115.568513][ T4927] dump_backtrace+0x0/0x43c [ 115.569758][ T4927] show_stack+0x2c/0x3c [ 115.570952][ T4927] __dump_stack+0x30/0x40 [ 115.572126][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.573527][ T4927] dump_stack+0x1c/0x5c [ 115.574720][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.576329][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.577684][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.579002][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.580224][ T4927] inet_sendmsg+0x154/0x284 [ 115.581458][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.582694][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.584027][ T4927] invoke_syscall+0x98/0x2b8 [ 115.585312][ T4927] el0_svc_common+0x138/0x258 [ 115.586570][ T4927] do_el0_svc+0x58/0x14c [ 115.587745][ T4927] el0_svc+0x78/0x1e0 [ 115.588846][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.590235][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.591827][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.594982][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.597165][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.599917][ T4927] Call trace: [ 115.600762][ T4927] dump_backtrace+0x0/0x43c [ 115.601984][ T4927] show_stack+0x2c/0x3c [ 115.603112][ T4927] __dump_stack+0x30/0x40 [ 115.604341][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.605575][ T4927] dump_stack+0x1c/0x5c [ 115.606734][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.608214][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.609559][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.610836][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.612164][ T4927] inet_sendmsg+0x154/0x284 [ 115.613436][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.614581][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.615985][ T4927] invoke_syscall+0x98/0x2b8 [ 115.617281][ T4927] el0_svc_common+0x138/0x258 [ 115.618724][ T4927] do_el0_svc+0x58/0x14c [ 115.619937][ T4927] el0_svc+0x78/0x1e0 [ 115.621106][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.622487][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.624791][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.627844][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.629959][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.632619][ T4927] Call trace: [ 115.633573][ T4927] dump_backtrace+0x0/0x43c [ 115.634866][ T4927] show_stack+0x2c/0x3c [ 115.636015][ T4927] __dump_stack+0x30/0x40 [ 115.637240][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.638530][ T4927] dump_stack+0x1c/0x5c [ 115.639660][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.641120][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.642420][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.643673][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.644852][ T4927] inet_sendmsg+0x154/0x284 [ 115.646098][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.647333][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.648647][ T4927] invoke_syscall+0x98/0x2b8 [ 115.649910][ T4927] el0_svc_common+0x138/0x258 [ 115.651178][ T4927] do_el0_svc+0x58/0x14c [ 115.652348][ T4927] el0_svc+0x78/0x1e0 [ 115.653414][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.654830][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.656671][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.659742][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.661896][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.664618][ T4927] Call trace: [ 115.665511][ T4927] dump_backtrace+0x0/0x43c [ 115.666792][ T4927] show_stack+0x2c/0x3c [ 115.667904][ T4927] __dump_stack+0x30/0x40 [ 115.669073][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.670290][ T4927] dump_stack+0x1c/0x5c [ 115.671380][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.672871][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.674178][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.675448][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.676715][ T4927] inet_sendmsg+0x154/0x284 [ 115.677910][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.679200][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.680542][ T4927] invoke_syscall+0x98/0x2b8 [ 115.681766][ T4927] el0_svc_common+0x138/0x258 [ 115.683013][ T4927] do_el0_svc+0x58/0x14c [ 115.684185][ T4927] el0_svc+0x78/0x1e0 [ 115.685246][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.686604][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.688123][ T4927] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.691123][ T4927] CPU: 1 PID: 4927 Comm: syz.0.43 Not tainted 5.15.185-syzkaller #0 [ 115.693263][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.696018][ T4927] Call trace: [ 115.696885][ T4927] dump_backtrace+0x0/0x43c [ 115.698101][ T4927] show_stack+0x2c/0x3c [ 115.699300][ T4927] __dump_stack+0x30/0x40 [ 115.700548][ T4927] dump_stack_lvl+0xf8/0x160 [ 115.701823][ T4927] dump_stack+0x1c/0x5c [ 115.702962][ T4927] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.704485][ T4927] dccp_xmit_packet+0x298/0x448 [ 115.705755][ T4927] dccp_write_xmit+0x118/0x1d0 [ 115.707048][ T4927] dccp_sendmsg+0x538/0x8a8 [ 115.708255][ T4927] inet_sendmsg+0x154/0x284 [ 115.709468][ T4927] __sys_sendto+0x2e8/0x3d8 [ 115.710676][ T4927] __arm64_sys_sendto+0xd8/0xf8 [ 115.712014][ T4927] invoke_syscall+0x98/0x2b8 [ 115.713220][ T4927] el0_svc_common+0x138/0x258 [ 115.714481][ T4927] do_el0_svc+0x58/0x14c [ 115.715626][ T4927] el0_svc+0x78/0x1e0 [ 115.716663][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 115.718017][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 115.786975][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.790039][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 115.792187][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.794983][ T4931] Call trace: [ 115.795880][ T4931] dump_backtrace+0x0/0x43c [ 115.797121][ T4931] show_stack+0x2c/0x3c [ 115.798237][ T4931] __dump_stack+0x30/0x40 [ 115.799412][ T4931] dump_stack_lvl+0xf8/0x160 [ 115.800730][ T4931] dump_stack+0x1c/0x5c [ 115.801859][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.803357][ T4931] dccp_xmit_packet+0x298/0x448 [ 115.804675][ T4931] dccp_write_xmit+0x118/0x1d0 [ 115.805988][ T4931] dccp_sendmsg+0x538/0x8a8 [ 115.807289][ T4931] inet_sendmsg+0x154/0x284 [ 115.808529][ T4931] __sys_sendto+0x2e8/0x3d8 [ 115.809802][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 115.811105][ T4931] invoke_syscall+0x98/0x2b8 [ 115.812388][ T4931] el0_svc_common+0x138/0x258 [ 115.813770][ T4931] do_el0_svc+0x58/0x14c [ 115.814899][ T4931] el0_svc+0x78/0x1e0 [ 115.816076][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 115.817463][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 115.819887][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.822886][ T4931] CPU: 1 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 115.825021][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.827782][ T4931] Call trace: [ 115.828668][ T4931] dump_backtrace+0x0/0x43c [ 115.829942][ T4931] show_stack+0x2c/0x3c [ 115.831178][ T4931] __dump_stack+0x30/0x40 [ 115.832399][ T4931] dump_stack_lvl+0xf8/0x160 [ 115.833677][ T4931] dump_stack+0x1c/0x5c [ 115.834777][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.836312][ T4931] dccp_xmit_packet+0x298/0x448 [ 115.837632][ T4931] dccp_write_xmit+0x118/0x1d0 [ 115.839132][ T4931] dccp_sendmsg+0x538/0x8a8 [ 115.840371][ T4931] inet_sendmsg+0x154/0x284 [ 115.841619][ T4931] __sys_sendto+0x2e8/0x3d8 [ 115.842868][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 115.844225][ T4931] invoke_syscall+0x98/0x2b8 [ 115.845527][ T4931] el0_svc_common+0x138/0x258 [ 115.846793][ T4931] do_el0_svc+0x58/0x14c [ 115.847973][ T4931] el0_svc+0x78/0x1e0 [ 115.849030][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 115.850416][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 115.853785][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.856982][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 115.859289][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.861984][ T4931] Call trace: [ 115.862845][ T4931] dump_backtrace+0x0/0x43c [ 115.864099][ T4931] show_stack+0x2c/0x3c [ 115.865261][ T4931] __dump_stack+0x30/0x40 [ 115.866402][ T4931] dump_stack_lvl+0xf8/0x160 [ 115.867623][ T4931] dump_stack+0x1c/0x5c [ 115.868729][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.870318][ T4931] dccp_xmit_packet+0x298/0x448 [ 115.871656][ T4931] dccp_write_xmit+0x118/0x1d0 [ 115.872971][ T4931] dccp_sendmsg+0x538/0x8a8 [ 115.874228][ T4931] inet_sendmsg+0x154/0x284 [ 115.875418][ T4931] __sys_sendto+0x2e8/0x3d8 [ 115.876662][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 115.877996][ T4931] invoke_syscall+0x98/0x2b8 [ 115.879274][ T4931] el0_svc_common+0x138/0x258 [ 115.880559][ T4931] do_el0_svc+0x58/0x14c [ 115.881742][ T4931] el0_svc+0x78/0x1e0 [ 115.882871][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 115.884274][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 115.886403][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.889558][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 115.891852][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.894681][ T4931] Call trace: [ 115.895622][ T4931] dump_backtrace+0x0/0x43c [ 115.896889][ T4931] show_stack+0x2c/0x3c [ 115.898098][ T4931] __dump_stack+0x30/0x40 [ 115.899328][ T4931] dump_stack_lvl+0xf8/0x160 [ 115.900554][ T4931] dump_stack+0x1c/0x5c [ 115.901695][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.903183][ T4931] dccp_xmit_packet+0x298/0x448 [ 115.904597][ T4931] dccp_write_xmit+0x118/0x1d0 [ 115.905894][ T4931] dccp_sendmsg+0x538/0x8a8 [ 115.907123][ T4931] inet_sendmsg+0x154/0x284 [ 115.908400][ T4931] __sys_sendto+0x2e8/0x3d8 [ 115.909716][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 115.911067][ T4931] invoke_syscall+0x98/0x2b8 [ 115.912347][ T4931] el0_svc_common+0x138/0x258 [ 115.913641][ T4931] do_el0_svc+0x58/0x14c [ 115.914809][ T4931] el0_svc+0x78/0x1e0 [ 115.915904][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 115.917231][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 115.918858][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.921887][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 115.924064][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.926813][ T4931] Call trace: [ 115.927714][ T4931] dump_backtrace+0x0/0x43c [ 115.928942][ T4931] show_stack+0x2c/0x3c [ 115.930106][ T4931] __dump_stack+0x30/0x40 [ 115.931339][ T4931] dump_stack_lvl+0xf8/0x160 [ 115.932637][ T4931] dump_stack+0x1c/0x5c [ 115.933775][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.935317][ T4931] dccp_xmit_packet+0x298/0x448 [ 115.936661][ T4931] dccp_write_xmit+0x118/0x1d0 [ 115.937953][ T4931] dccp_sendmsg+0x538/0x8a8 [ 115.939198][ T4931] inet_sendmsg+0x154/0x284 [ 115.940428][ T4931] __sys_sendto+0x2e8/0x3d8 [ 115.941639][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 115.942920][ T4931] invoke_syscall+0x98/0x2b8 [ 115.944273][ T4931] el0_svc_common+0x138/0x258 [ 115.945597][ T4931] do_el0_svc+0x58/0x14c [ 115.946707][ T4931] el0_svc+0x78/0x1e0 [ 115.947829][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 115.949370][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 115.951008][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.954228][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 115.956505][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.959319][ T4931] Call trace: [ 115.960230][ T4931] dump_backtrace+0x0/0x43c [ 115.961561][ T4931] show_stack+0x2c/0x3c [ 115.962679][ T4931] __dump_stack+0x30/0x40 [ 115.963811][ T4931] dump_stack_lvl+0xf8/0x160 [ 115.965034][ T4931] dump_stack+0x1c/0x5c [ 115.966157][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 115.967677][ T4931] dccp_xmit_packet+0x298/0x448 [ 115.969061][ T4931] dccp_write_xmit+0x118/0x1d0 [ 115.970369][ T4931] dccp_sendmsg+0x538/0x8a8 [ 115.971658][ T4931] inet_sendmsg+0x154/0x284 [ 115.972925][ T4931] __sys_sendto+0x2e8/0x3d8 [ 115.974141][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 115.975527][ T4931] invoke_syscall+0x98/0x2b8 [ 115.976805][ T4931] el0_svc_common+0x138/0x258 [ 115.978140][ T4931] do_el0_svc+0x58/0x14c [ 115.979387][ T4931] el0_svc+0x78/0x1e0 [ 115.980472][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 115.981870][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 115.983524][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 115.986586][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 115.988864][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 115.991645][ T4931] Call trace: [ 115.992550][ T4931] dump_backtrace+0x0/0x43c [ 115.993869][ T4931] show_stack+0x2c/0x3c [ 115.995031][ T4931] __dump_stack+0x30/0x40 [ 115.996299][ T4931] dump_stack_lvl+0xf8/0x160 [ 115.997654][ T4931] dump_stack+0x1c/0x5c [ 115.998829][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.000475][ T4931] dccp_xmit_packet+0x298/0x448 [ 116.001900][ T4931] dccp_write_xmit+0x118/0x1d0 [ 116.003271][ T4931] dccp_sendmsg+0x538/0x8a8 [ 116.004529][ T4931] inet_sendmsg+0x154/0x284 [ 116.005829][ T4931] __sys_sendto+0x2e8/0x3d8 [ 116.007201][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 116.008538][ T4931] invoke_syscall+0x98/0x2b8 [ 116.009856][ T4931] el0_svc_common+0x138/0x258 [ 116.011128][ T4931] do_el0_svc+0x58/0x14c [ 116.012351][ T4931] el0_svc+0x78/0x1e0 [ 116.013404][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 116.014818][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 116.016647][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.019745][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 116.021986][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.024722][ T4931] Call trace: [ 116.025631][ T4931] dump_backtrace+0x0/0x43c [ 116.026894][ T4931] show_stack+0x2c/0x3c [ 116.028016][ T4931] __dump_stack+0x30/0x40 [ 116.029227][ T4931] dump_stack_lvl+0xf8/0x160 [ 116.030535][ T4931] dump_stack+0x1c/0x5c [ 116.031716][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.033257][ T4931] dccp_xmit_packet+0x298/0x448 [ 116.034618][ T4931] dccp_write_xmit+0x118/0x1d0 [ 116.035910][ T4931] dccp_sendmsg+0x538/0x8a8 [ 116.037134][ T4931] inet_sendmsg+0x154/0x284 [ 116.038426][ T4931] __sys_sendto+0x2e8/0x3d8 [ 116.039671][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 116.041091][ T4931] invoke_syscall+0x98/0x2b8 [ 116.042366][ T4931] el0_svc_common+0x138/0x258 [ 116.043664][ T4931] do_el0_svc+0x58/0x14c [ 116.044806][ T4931] el0_svc+0x78/0x1e0 [ 116.045893][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 116.047298][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 116.048854][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.051979][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 116.054191][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.057048][ T4931] Call trace: [ 116.057989][ T4931] dump_backtrace+0x0/0x43c [ 116.059289][ T4931] show_stack+0x2c/0x3c [ 116.060499][ T4931] __dump_stack+0x30/0x40 [ 116.061645][ T4931] dump_stack_lvl+0xf8/0x160 [ 116.062927][ T4931] dump_stack+0x1c/0x5c [ 116.064086][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.065565][ T4931] dccp_xmit_packet+0x298/0x448 [ 116.066946][ T4931] dccp_write_xmit+0x118/0x1d0 [ 116.068290][ T4931] dccp_sendmsg+0x538/0x8a8 [ 116.069558][ T4931] inet_sendmsg+0x154/0x284 [ 116.070793][ T4931] __sys_sendto+0x2e8/0x3d8 [ 116.072000][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 116.073318][ T4931] invoke_syscall+0x98/0x2b8 [ 116.074588][ T4931] el0_svc_common+0x138/0x258 [ 116.075923][ T4931] do_el0_svc+0x58/0x14c [ 116.077192][ T4931] el0_svc+0x78/0x1e0 [ 116.078370][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 116.079762][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 116.081446][ T4931] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.084591][ T4931] CPU: 0 PID: 4931 Comm: syz.0.45 Not tainted 5.15.185-syzkaller #0 [ 116.086814][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.089523][ T4931] Call trace: [ 116.090414][ T4931] dump_backtrace+0x0/0x43c [ 116.091637][ T4931] show_stack+0x2c/0x3c [ 116.092797][ T4931] __dump_stack+0x30/0x40 [ 116.093969][ T4931] dump_stack_lvl+0xf8/0x160 [ 116.095274][ T4931] dump_stack+0x1c/0x5c [ 116.096471][ T4931] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.097982][ T4931] dccp_xmit_packet+0x298/0x448 [ 116.099301][ T4931] dccp_write_xmit+0x118/0x1d0 [ 116.100636][ T4931] dccp_sendmsg+0x538/0x8a8 [ 116.101876][ T4931] inet_sendmsg+0x154/0x284 [ 116.103157][ T4931] __sys_sendto+0x2e8/0x3d8 [ 116.104417][ T4931] __arm64_sys_sendto+0xd8/0xf8 [ 116.105723][ T4931] invoke_syscall+0x98/0x2b8 [ 116.106968][ T4931] el0_svc_common+0x138/0x258 [ 116.108270][ T4931] do_el0_svc+0x58/0x14c [ 116.109486][ T4931] el0_svc+0x78/0x1e0 [ 116.110552][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 116.111921][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 116.146300][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.149451][ T4933] CPU: 0 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.151578][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.154371][ T4933] Call trace: [ 116.155293][ T4933] dump_backtrace+0x0/0x43c [ 116.156617][ T4933] show_stack+0x2c/0x3c [ 116.157804][ T4933] __dump_stack+0x30/0x40 [ 116.159035][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.160328][ T4933] dump_stack+0x1c/0x5c [ 116.161567][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.163149][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.164508][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.165854][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.167136][ T4933] inet_sendmsg+0x154/0x284 [ 116.168384][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.169635][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.171023][ T4933] invoke_syscall+0x98/0x2b8 [ 116.172252][ T4933] el0_svc_common+0x138/0x258 [ 116.173537][ T4933] do_el0_svc+0x58/0x14c [ 116.174685][ T4933] el0_svc+0x78/0x1e0 [ 116.175719][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.177091][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.180253][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.183916][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.186159][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.188959][ T4933] Call trace: [ 116.189862][ T4933] dump_backtrace+0x0/0x43c [ 116.191115][ T4933] show_stack+0x2c/0x3c [ 116.192288][ T4933] __dump_stack+0x30/0x40 [ 116.193451][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.194700][ T4933] dump_stack+0x1c/0x5c [ 116.195836][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.197331][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.198673][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.199989][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.201223][ T4933] inet_sendmsg+0x154/0x284 [ 116.202465][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.203738][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.205035][ T4933] invoke_syscall+0x98/0x2b8 [ 116.206346][ T4933] el0_svc_common+0x138/0x258 [ 116.207680][ T4933] do_el0_svc+0x58/0x14c [ 116.208858][ T4933] el0_svc+0x78/0x1e0 [ 116.209961][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.211409][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.213349][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.216541][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.218833][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.221554][ T4933] Call trace: [ 116.222477][ T4933] dump_backtrace+0x0/0x43c [ 116.223623][ T4933] show_stack+0x2c/0x3c [ 116.224757][ T4933] __dump_stack+0x30/0x40 [ 116.225915][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.227171][ T4933] dump_stack+0x1c/0x5c [ 116.228327][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.229837][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.231199][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.232529][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.233751][ T4933] inet_sendmsg+0x154/0x284 [ 116.234948][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.236169][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.237486][ T4933] invoke_syscall+0x98/0x2b8 [ 116.238727][ T4933] el0_svc_common+0x138/0x258 [ 116.239993][ T4933] do_el0_svc+0x58/0x14c [ 116.241117][ T4933] el0_svc+0x78/0x1e0 [ 116.242187][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.243648][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.245753][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.249275][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.251474][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.254029][ T4933] Call trace: [ 116.254862][ T4933] dump_backtrace+0x0/0x43c [ 116.256049][ T4933] show_stack+0x2c/0x3c [ 116.257125][ T4933] __dump_stack+0x30/0x40 [ 116.258366][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.259623][ T4933] dump_stack+0x1c/0x5c [ 116.260804][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.262472][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.263866][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.265231][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.266422][ T4933] inet_sendmsg+0x154/0x284 [ 116.267683][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.268897][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.270259][ T4933] invoke_syscall+0x98/0x2b8 [ 116.271524][ T4933] el0_svc_common+0x138/0x258 [ 116.272866][ T4933] do_el0_svc+0x58/0x14c [ 116.273992][ T4933] el0_svc+0x78/0x1e0 [ 116.275170][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.276935][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.278616][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.281643][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.283749][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.286633][ T4933] Call trace: [ 116.287511][ T4933] dump_backtrace+0x0/0x43c [ 116.288748][ T4933] show_stack+0x2c/0x3c [ 116.289918][ T4933] __dump_stack+0x30/0x40 [ 116.291127][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.292496][ T4933] dump_stack+0x1c/0x5c [ 116.293628][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.295155][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.296486][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.297826][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.299139][ T4933] inet_sendmsg+0x154/0x284 [ 116.300481][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.301739][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.303044][ T4933] invoke_syscall+0x98/0x2b8 [ 116.304351][ T4933] el0_svc_common+0x138/0x258 [ 116.305702][ T4933] do_el0_svc+0x58/0x14c [ 116.306921][ T4933] el0_svc+0x78/0x1e0 [ 116.308022][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.309387][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.311121][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.314296][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.316423][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.319117][ T4933] Call trace: [ 116.319980][ T4933] dump_backtrace+0x0/0x43c [ 116.321217][ T4933] show_stack+0x2c/0x3c [ 116.322365][ T4933] __dump_stack+0x30/0x40 [ 116.323526][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.324836][ T4933] dump_stack+0x1c/0x5c [ 116.325994][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.327512][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.328885][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.330235][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.331458][ T4933] inet_sendmsg+0x154/0x284 [ 116.332688][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.333902][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.335252][ T4933] invoke_syscall+0x98/0x2b8 [ 116.336544][ T4933] el0_svc_common+0x138/0x258 [ 116.337829][ T4933] do_el0_svc+0x58/0x14c [ 116.339085][ T4933] el0_svc+0x78/0x1e0 [ 116.340194][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.341612][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.343305][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.346441][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.348573][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.351294][ T4933] Call trace: [ 116.352182][ T4933] dump_backtrace+0x0/0x43c [ 116.353424][ T4933] show_stack+0x2c/0x3c [ 116.354528][ T4933] __dump_stack+0x30/0x40 [ 116.355690][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.356969][ T4933] dump_stack+0x1c/0x5c [ 116.358124][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.359620][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.360931][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.362213][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.363477][ T4933] inet_sendmsg+0x154/0x284 [ 116.364802][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.366018][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.367351][ T4933] invoke_syscall+0x98/0x2b8 [ 116.368604][ T4933] el0_svc_common+0x138/0x258 [ 116.369913][ T4933] do_el0_svc+0x58/0x14c [ 116.371055][ T4933] el0_svc+0x78/0x1e0 [ 116.372174][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.373641][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.376192][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.379407][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.381637][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.384426][ T4933] Call trace: [ 116.385329][ T4933] dump_backtrace+0x0/0x43c [ 116.386547][ T4933] show_stack+0x2c/0x3c [ 116.387676][ T4933] __dump_stack+0x30/0x40 [ 116.388904][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.390192][ T4933] dump_stack+0x1c/0x5c [ 116.391357][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.392903][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.394278][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.395636][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.396926][ T4933] inet_sendmsg+0x154/0x284 [ 116.398158][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.399450][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.400806][ T4933] invoke_syscall+0x98/0x2b8 [ 116.402047][ T4933] el0_svc_common+0x138/0x258 [ 116.403417][ T4933] do_el0_svc+0x58/0x14c [ 116.404576][ T4933] el0_svc+0x78/0x1e0 [ 116.405626][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.407055][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.408709][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.411868][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.414166][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.417117][ T4933] Call trace: [ 116.418013][ T4933] dump_backtrace+0x0/0x43c [ 116.419295][ T4933] show_stack+0x2c/0x3c [ 116.420484][ T4933] __dump_stack+0x30/0x40 [ 116.421745][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.422973][ T4933] dump_stack+0x1c/0x5c [ 116.424114][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.425631][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.427014][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.428347][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.429574][ T4933] inet_sendmsg+0x154/0x284 [ 116.430872][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.432175][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.433553][ T4933] invoke_syscall+0x98/0x2b8 [ 116.434740][ T4933] el0_svc_common+0x138/0x258 [ 116.435853][ T4933] do_el0_svc+0x58/0x14c [ 116.436856][ T4933] el0_svc+0x78/0x1e0 [ 116.437802][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.439035][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.440707][ T4933] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.443838][ T4933] CPU: 1 PID: 4933 Comm: syz.0.46 Not tainted 5.15.185-syzkaller #0 [ 116.445984][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.448748][ T4933] Call trace: [ 116.449634][ T4933] dump_backtrace+0x0/0x43c [ 116.450935][ T4933] show_stack+0x2c/0x3c [ 116.452053][ T4933] __dump_stack+0x30/0x40 [ 116.453275][ T4933] dump_stack_lvl+0xf8/0x160 [ 116.454567][ T4933] dump_stack+0x1c/0x5c [ 116.455668][ T4933] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.457211][ T4933] dccp_xmit_packet+0x298/0x448 [ 116.458677][ T4933] dccp_write_xmit+0x118/0x1d0 [ 116.459987][ T4933] dccp_sendmsg+0x538/0x8a8 [ 116.461300][ T4933] inet_sendmsg+0x154/0x284 [ 116.462551][ T4933] __sys_sendto+0x2e8/0x3d8 [ 116.463799][ T4933] __arm64_sys_sendto+0xd8/0xf8 [ 116.465109][ T4933] invoke_syscall+0x98/0x2b8 [ 116.466410][ T4933] el0_svc_common+0x138/0x258 [ 116.467776][ T4933] do_el0_svc+0x58/0x14c [ 116.468964][ T4933] el0_svc+0x78/0x1e0 [ 116.470156][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 116.471555][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 116.503558][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.506722][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.508816][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.511538][ T4935] Call trace: [ 116.512431][ T4935] dump_backtrace+0x0/0x43c [ 116.513708][ T4935] show_stack+0x2c/0x3c [ 116.514881][ T4935] __dump_stack+0x30/0x40 [ 116.516106][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.517441][ T4935] dump_stack+0x1c/0x5c [ 116.518587][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.520051][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.521497][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.522854][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.524367][ T4935] inet_sendmsg+0x154/0x284 [ 116.525749][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.527256][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.528692][ T4935] invoke_syscall+0x98/0x2b8 [ 116.529972][ T4935] el0_svc_common+0x138/0x258 [ 116.531305][ T4935] do_el0_svc+0x58/0x14c [ 116.532506][ T4935] el0_svc+0x78/0x1e0 [ 116.533584][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.535044][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.536633][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.539618][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.541896][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.544663][ T4935] Call trace: [ 116.545577][ T4935] dump_backtrace+0x0/0x43c [ 116.546760][ T4935] show_stack+0x2c/0x3c [ 116.547855][ T4935] __dump_stack+0x30/0x40 [ 116.549018][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.550233][ T4935] dump_stack+0x1c/0x5c [ 116.551393][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.552683][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.553828][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.554944][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.556003][ T4935] inet_sendmsg+0x154/0x284 [ 116.557189][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.558456][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.559848][ T4935] invoke_syscall+0x98/0x2b8 [ 116.561157][ T4935] el0_svc_common+0x138/0x258 [ 116.562541][ T4935] do_el0_svc+0x58/0x14c [ 116.563766][ T4935] el0_svc+0x78/0x1e0 [ 116.564855][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.566258][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.568254][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.571376][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.573454][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.576194][ T4935] Call trace: [ 116.577084][ T4935] dump_backtrace+0x0/0x43c [ 116.578316][ T4935] show_stack+0x2c/0x3c [ 116.579409][ T4935] __dump_stack+0x30/0x40 [ 116.580606][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.581922][ T4935] dump_stack+0x1c/0x5c [ 116.583051][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.584540][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.585882][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.587237][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.588545][ T4935] inet_sendmsg+0x154/0x284 [ 116.589744][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.591006][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.592400][ T4935] invoke_syscall+0x98/0x2b8 [ 116.593618][ T4935] el0_svc_common+0x138/0x258 [ 116.594911][ T4935] do_el0_svc+0x58/0x14c [ 116.596090][ T4935] el0_svc+0x78/0x1e0 [ 116.597214][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.598658][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.600271][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.603390][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.605554][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.608290][ T4935] Call trace: [ 116.609197][ T4935] dump_backtrace+0x0/0x43c [ 116.610424][ T4935] show_stack+0x2c/0x3c [ 116.611546][ T4935] __dump_stack+0x30/0x40 [ 116.612765][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.614034][ T4935] dump_stack+0x1c/0x5c [ 116.615258][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.616876][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.618258][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.619619][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.620913][ T4935] inet_sendmsg+0x154/0x284 [ 116.622158][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.623430][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.624795][ T4935] invoke_syscall+0x98/0x2b8 [ 116.626118][ T4935] el0_svc_common+0x138/0x258 [ 116.627397][ T4935] do_el0_svc+0x58/0x14c [ 116.628600][ T4935] el0_svc+0x78/0x1e0 [ 116.629767][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.631190][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.633002][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.636245][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.638487][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.641272][ T4935] Call trace: [ 116.642283][ T4935] dump_backtrace+0x0/0x43c [ 116.643555][ T4935] show_stack+0x2c/0x3c [ 116.644779][ T4935] __dump_stack+0x30/0x40 [ 116.646048][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.647318][ T4935] dump_stack+0x1c/0x5c [ 116.648512][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.650055][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.651464][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.652782][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.654058][ T4935] inet_sendmsg+0x154/0x284 [ 116.655330][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.656576][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.657883][ T4935] invoke_syscall+0x98/0x2b8 [ 116.659158][ T4935] el0_svc_common+0x138/0x258 [ 116.660603][ T4935] do_el0_svc+0x58/0x14c [ 116.661767][ T4935] el0_svc+0x78/0x1e0 [ 116.662976][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.664387][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.665987][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.669029][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.671246][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.673997][ T4935] Call trace: [ 116.674948][ T4935] dump_backtrace+0x0/0x43c [ 116.676213][ T4935] show_stack+0x2c/0x3c [ 116.677409][ T4935] __dump_stack+0x30/0x40 [ 116.678620][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.679904][ T4935] dump_stack+0x1c/0x5c [ 116.681041][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.682578][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.683946][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.685308][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.686556][ T4935] inet_sendmsg+0x154/0x284 [ 116.687840][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.689148][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.690542][ T4935] invoke_syscall+0x98/0x2b8 [ 116.691828][ T4935] el0_svc_common+0x138/0x258 [ 116.693156][ T4935] do_el0_svc+0x58/0x14c [ 116.694325][ T4935] el0_svc+0x78/0x1e0 [ 116.695481][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.696903][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.698483][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.701500][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.703617][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.706470][ T4935] Call trace: [ 116.707378][ T4935] dump_backtrace+0x0/0x43c [ 116.708571][ T4935] show_stack+0x2c/0x3c [ 116.709754][ T4935] __dump_stack+0x30/0x40 [ 116.710980][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.712270][ T4935] dump_stack+0x1c/0x5c [ 116.713396][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.714923][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.716240][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.717600][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.718876][ T4935] inet_sendmsg+0x154/0x284 [ 116.720189][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.721477][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.722902][ T4935] invoke_syscall+0x98/0x2b8 [ 116.724127][ T4935] el0_svc_common+0x138/0x258 [ 116.725453][ T4935] do_el0_svc+0x58/0x14c [ 116.726633][ T4935] el0_svc+0x78/0x1e0 [ 116.727765][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.729132][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.730703][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.733875][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.736098][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.738698][ T4935] Call trace: [ 116.739634][ T4935] dump_backtrace+0x0/0x43c [ 116.740897][ T4935] show_stack+0x2c/0x3c [ 116.741994][ T4935] __dump_stack+0x30/0x40 [ 116.743105][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.744366][ T4935] dump_stack+0x1c/0x5c [ 116.745535][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.747008][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.748360][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.749668][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.750920][ T4935] inet_sendmsg+0x154/0x284 [ 116.752169][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.753432][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.754818][ T4935] invoke_syscall+0x98/0x2b8 [ 116.756017][ T4935] el0_svc_common+0x138/0x258 [ 116.757325][ T4935] do_el0_svc+0x58/0x14c [ 116.758551][ T4935] el0_svc+0x78/0x1e0 [ 116.759641][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.761089][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.762730][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.765943][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.768186][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.770948][ T4935] Call trace: [ 116.771807][ T4935] dump_backtrace+0x0/0x43c [ 116.773013][ T4935] show_stack+0x2c/0x3c [ 116.774149][ T4935] __dump_stack+0x30/0x40 [ 116.775367][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.776658][ T4935] dump_stack+0x1c/0x5c [ 116.777793][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.779303][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.780722][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.782053][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.783264][ T4935] inet_sendmsg+0x154/0x284 [ 116.784470][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.785699][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.787021][ T4935] invoke_syscall+0x98/0x2b8 [ 116.788317][ T4935] el0_svc_common+0x138/0x258 [ 116.789613][ T4935] do_el0_svc+0x58/0x14c [ 116.790769][ T4935] el0_svc+0x78/0x1e0 [ 116.791883][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.793286][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.794929][ T4935] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.797945][ T4935] CPU: 0 PID: 4935 Comm: syz.0.47 Not tainted 5.15.185-syzkaller #0 [ 116.800053][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.802771][ T4935] Call trace: [ 116.803650][ T4935] dump_backtrace+0x0/0x43c [ 116.804930][ T4935] show_stack+0x2c/0x3c [ 116.806103][ T4935] __dump_stack+0x30/0x40 [ 116.807292][ T4935] dump_stack_lvl+0xf8/0x160 [ 116.808565][ T4935] dump_stack+0x1c/0x5c [ 116.809737][ T4935] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.811535][ T4935] dccp_xmit_packet+0x298/0x448 [ 116.813056][ T4935] dccp_write_xmit+0x118/0x1d0 [ 116.814370][ T4935] dccp_sendmsg+0x538/0x8a8 [ 116.815661][ T4935] inet_sendmsg+0x154/0x284 [ 116.816911][ T4935] __sys_sendto+0x2e8/0x3d8 [ 116.818246][ T4935] __arm64_sys_sendto+0xd8/0xf8 [ 116.819533][ T4935] invoke_syscall+0x98/0x2b8 [ 116.820770][ T4935] el0_svc_common+0x138/0x258 [ 116.822007][ T4935] do_el0_svc+0x58/0x14c [ 116.823177][ T4935] el0_svc+0x78/0x1e0 [ 116.824271][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 116.825656][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 116.855374][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.858708][ T4937] CPU: 0 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 116.860865][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.863529][ T4937] Call trace: [ 116.864394][ T4937] dump_backtrace+0x0/0x43c [ 116.865632][ T4937] show_stack+0x2c/0x3c [ 116.866732][ T4937] __dump_stack+0x30/0x40 [ 116.867886][ T4937] dump_stack_lvl+0xf8/0x160 [ 116.869109][ T4937] dump_stack+0x1c/0x5c [ 116.870257][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.871696][ T4937] dccp_xmit_packet+0x298/0x448 [ 116.873029][ T4937] dccp_write_xmit+0x118/0x1d0 [ 116.874329][ T4937] dccp_sendmsg+0x538/0x8a8 [ 116.875522][ T4937] inet_sendmsg+0x154/0x284 [ 116.876721][ T4937] __sys_sendto+0x2e8/0x3d8 [ 116.877932][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 116.879288][ T4937] invoke_syscall+0x98/0x2b8 [ 116.880561][ T4937] el0_svc_common+0x138/0x258 [ 116.881789][ T4937] do_el0_svc+0x58/0x14c [ 116.882967][ T4937] el0_svc+0x78/0x1e0 [ 116.884014][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 116.885382][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 116.887911][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.891013][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 116.893176][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.895995][ T4937] Call trace: [ 116.896959][ T4937] dump_backtrace+0x0/0x43c [ 116.898271][ T4937] show_stack+0x2c/0x3c [ 116.899470][ T4937] __dump_stack+0x30/0x40 [ 116.900641][ T4937] dump_stack_lvl+0xf8/0x160 [ 116.901941][ T4937] dump_stack+0x1c/0x5c [ 116.903106][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.904620][ T4937] dccp_xmit_packet+0x298/0x448 [ 116.905933][ T4937] dccp_write_xmit+0x118/0x1d0 [ 116.907312][ T4937] dccp_sendmsg+0x538/0x8a8 [ 116.908628][ T4937] inet_sendmsg+0x154/0x284 [ 116.909859][ T4937] __sys_sendto+0x2e8/0x3d8 [ 116.911054][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 116.912367][ T4937] invoke_syscall+0x98/0x2b8 [ 116.913618][ T4937] el0_svc_common+0x138/0x258 [ 116.914830][ T4937] do_el0_svc+0x58/0x14c [ 116.915825][ T4937] el0_svc+0x78/0x1e0 [ 116.916756][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 116.917944][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 116.920266][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.922894][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 116.924781][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.927589][ T4937] Call trace: [ 116.928463][ T4937] dump_backtrace+0x0/0x43c [ 116.929695][ T4937] show_stack+0x2c/0x3c [ 116.930775][ T4937] __dump_stack+0x30/0x40 [ 116.931934][ T4937] dump_stack_lvl+0xf8/0x160 [ 116.933279][ T4937] dump_stack+0x1c/0x5c [ 116.934518][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.936054][ T4937] dccp_xmit_packet+0x298/0x448 [ 116.937414][ T4937] dccp_write_xmit+0x118/0x1d0 [ 116.938731][ T4937] dccp_sendmsg+0x538/0x8a8 [ 116.940026][ T4937] inet_sendmsg+0x154/0x284 [ 116.941241][ T4937] __sys_sendto+0x2e8/0x3d8 [ 116.942481][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 116.943810][ T4937] invoke_syscall+0x98/0x2b8 [ 116.945079][ T4937] el0_svc_common+0x138/0x258 [ 116.946400][ T4937] do_el0_svc+0x58/0x14c [ 116.947575][ T4937] el0_svc+0x78/0x1e0 [ 116.948732][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 116.950155][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 116.952317][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.955413][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 116.957566][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.960335][ T4937] Call trace: [ 116.961194][ T4937] dump_backtrace+0x0/0x43c [ 116.962488][ T4937] show_stack+0x2c/0x3c [ 116.963700][ T4937] __dump_stack+0x30/0x40 [ 116.964895][ T4937] dump_stack_lvl+0xf8/0x160 [ 116.966173][ T4937] dump_stack+0x1c/0x5c [ 116.967314][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 116.968860][ T4937] dccp_xmit_packet+0x298/0x448 [ 116.970261][ T4937] dccp_write_xmit+0x118/0x1d0 [ 116.971631][ T4937] dccp_sendmsg+0x538/0x8a8 [ 116.972863][ T4937] inet_sendmsg+0x154/0x284 [ 116.974331][ T4937] __sys_sendto+0x2e8/0x3d8 [ 116.975532][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 116.976896][ T4937] invoke_syscall+0x98/0x2b8 [ 116.978216][ T4937] el0_svc_common+0x138/0x258 [ 116.979480][ T4937] do_el0_svc+0x58/0x14c [ 116.980616][ T4937] el0_svc+0x78/0x1e0 [ 116.981771][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 116.983158][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 116.984996][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 116.987995][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 116.990044][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 116.992710][ T4937] Call trace: [ 116.993589][ T4937] dump_backtrace+0x0/0x43c [ 116.994768][ T4937] show_stack+0x2c/0x3c [ 116.995938][ T4937] __dump_stack+0x30/0x40 [ 116.997136][ T4937] dump_stack_lvl+0xf8/0x160 [ 116.998402][ T4937] dump_stack+0x1c/0x5c [ 116.999510][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 117.001043][ T4937] dccp_xmit_packet+0x298/0x448 [ 117.002383][ T4937] dccp_write_xmit+0x118/0x1d0 [ 117.003701][ T4937] dccp_sendmsg+0x538/0x8a8 [ 117.004912][ T4937] inet_sendmsg+0x154/0x284 [ 117.006161][ T4937] __sys_sendto+0x2e8/0x3d8 [ 117.007324][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 117.008647][ T4937] invoke_syscall+0x98/0x2b8 [ 117.009955][ T4937] el0_svc_common+0x138/0x258 [ 117.011253][ T4937] do_el0_svc+0x58/0x14c [ 117.012401][ T4937] el0_svc+0x78/0x1e0 [ 117.013521][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 117.014929][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 117.016449][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 117.019485][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 117.021638][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 117.024405][ T4937] Call trace: [ 117.025304][ T4937] dump_backtrace+0x0/0x43c [ 117.026577][ T4937] show_stack+0x2c/0x3c [ 117.027688][ T4937] __dump_stack+0x30/0x40 [ 117.028868][ T4937] dump_stack_lvl+0xf8/0x160 [ 117.030094][ T4937] dump_stack+0x1c/0x5c [ 117.031215][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 117.032771][ T4937] dccp_xmit_packet+0x298/0x448 [ 117.034075][ T4937] dccp_write_xmit+0x118/0x1d0 [ 117.035395][ T4937] dccp_sendmsg+0x538/0x8a8 [ 117.036662][ T4937] inet_sendmsg+0x154/0x284 [ 117.037913][ T4937] __sys_sendto+0x2e8/0x3d8 [ 117.039238][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 117.040533][ T4937] invoke_syscall+0x98/0x2b8 [ 117.041769][ T4937] el0_svc_common+0x138/0x258 [ 117.043104][ T4937] do_el0_svc+0x58/0x14c [ 117.044233][ T4937] el0_svc+0x78/0x1e0 [ 117.045316][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 117.046712][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 117.048331][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 117.051388][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 117.053455][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 117.056201][ T4937] Call trace: [ 117.057086][ T4937] dump_backtrace+0x0/0x43c [ 117.058320][ T4937] show_stack+0x2c/0x3c [ 117.059426][ T4937] __dump_stack+0x30/0x40 [ 117.060578][ T4937] dump_stack_lvl+0xf8/0x160 [ 117.061831][ T4937] dump_stack+0x1c/0x5c [ 117.062941][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 117.064424][ T4937] dccp_xmit_packet+0x298/0x448 [ 117.065723][ T4937] dccp_write_xmit+0x118/0x1d0 [ 117.067070][ T4937] dccp_sendmsg+0x538/0x8a8 [ 117.068342][ T4937] inet_sendmsg+0x154/0x284 [ 117.069576][ T4937] __sys_sendto+0x2e8/0x3d8 [ 117.070816][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 117.072177][ T4937] invoke_syscall+0x98/0x2b8 [ 117.073469][ T4937] el0_svc_common+0x138/0x258 [ 117.074755][ T4937] do_el0_svc+0x58/0x14c [ 117.075846][ T4937] el0_svc+0x78/0x1e0 [ 117.076926][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 117.078286][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 117.081312][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 117.084416][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 117.086599][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 117.089229][ T4937] Call trace: [ 117.090058][ T4937] dump_backtrace+0x0/0x43c [ 117.091267][ T4937] show_stack+0x2c/0x3c [ 117.092284][ T4937] __dump_stack+0x30/0x40 [ 117.093471][ T4937] dump_stack_lvl+0xf8/0x160 [ 117.094695][ T4937] dump_stack+0x1c/0x5c [ 117.095865][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 117.097326][ T4937] dccp_xmit_packet+0x298/0x448 [ 117.098653][ T4937] dccp_write_xmit+0x118/0x1d0 [ 117.100018][ T4937] dccp_sendmsg+0x538/0x8a8 [ 117.101310][ T4937] inet_sendmsg+0x154/0x284 [ 117.102518][ T4937] __sys_sendto+0x2e8/0x3d8 [ 117.103674][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 117.104977][ T4937] invoke_syscall+0x98/0x2b8 [ 117.106260][ T4937] el0_svc_common+0x138/0x258 [ 117.107532][ T4937] do_el0_svc+0x58/0x14c [ 117.108772][ T4937] el0_svc+0x78/0x1e0 [ 117.109852][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 117.111189][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 117.112771][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 117.115885][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 117.117981][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 117.120681][ T4937] Call trace: [ 117.121574][ T4937] dump_backtrace+0x0/0x43c [ 117.122773][ T4937] show_stack+0x2c/0x3c [ 117.123886][ T4937] __dump_stack+0x30/0x40 [ 117.125048][ T4937] dump_stack_lvl+0xf8/0x160 [ 117.126347][ T4937] dump_stack+0x1c/0x5c [ 117.127476][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 117.129035][ T4937] dccp_xmit_packet+0x298/0x448 [ 117.130372][ T4937] dccp_write_xmit+0x118/0x1d0 [ 117.131735][ T4937] dccp_sendmsg+0x538/0x8a8 [ 117.133022][ T4937] inet_sendmsg+0x154/0x284 [ 117.134237][ T4937] __sys_sendto+0x2e8/0x3d8 [ 117.135439][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 117.136741][ T4937] invoke_syscall+0x98/0x2b8 [ 117.138018][ T4937] el0_svc_common+0x138/0x258 [ 117.139300][ T4937] do_el0_svc+0x58/0x14c [ 117.140457][ T4937] el0_svc+0x78/0x1e0 [ 117.141531][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 117.142826][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 117.144324][ T4937] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 117.147269][ T4937] CPU: 1 PID: 4937 Comm: syz.0.48 Not tainted 5.15.185-syzkaller #0 [ 117.149414][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 117.152134][ T4937] Call trace: [ 117.153014][ T4937] dump_backtrace+0x0/0x43c [ 117.154246][ T4937] show_stack+0x2c/0x3c [ 117.155348][ T4937] __dump_stack+0x30/0x40 [ 117.156516][ T4937] dump_stack_lvl+0xf8/0x160 [ 117.157742][ T4937] dump_stack+0x1c/0x5c [ 117.158899][ T4937] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 117.160378][ T4937] dccp_xmit_packet+0x298/0x448 [ 117.161705][ T4937] dccp_write_xmit+0x118/0x1d0 [ 117.162986][ T4937] dccp_sendmsg+0x538/0x8a8 [ 117.164205][ T4937] inet_sendmsg+0x154/0x284 [ 117.165412][ T4937] __sys_sendto+0x2e8/0x3d8 [ 117.166588][ T4937] __arm64_sys_sendto+0xd8/0xf8 [ 117.167849][ T4937] invoke_syscall+0x98/0x2b8 [ 117.169085][ T4937] el0_svc_common+0x138/0x258 [ 117.170338][ T4937] do_el0_svc+0x58/0x14c [ 117.171486][ T4937] el0_svc+0x78/0x1e0 [ 117.172529][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 117.173879][ T4937] el0t_64_sync+0x1a0/0x1a4