Warning: Permanently added '10.128.1.187' (ED25519) to the list of known hosts. 1970/01/01 00:01:03 parsed 1 programs [ 64.989427][ T4445] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 68.346616][ T4585] chnl_net:caif_netlink_parms(): no params data found [ 68.364534][ T4585] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.365739][ T4585] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.367192][ T4585] device bridge_slave_0 entered promiscuous mode [ 68.369237][ T4585] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.370402][ T4585] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.372457][ T4585] device bridge_slave_1 entered promiscuous mode [ 68.382112][ T4585] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.384710][ T4585] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.392038][ T4585] team0: Port device team_slave_0 added [ 68.393937][ T4585] team0: Port device team_slave_1 added [ 68.400833][ T4585] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.402310][ T4585] 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. [ 68.406333][ T4585] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.408769][ T4585] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.409823][ T4585] 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. [ 68.414000][ T4585] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.523495][ T4585] device hsr_slave_0 entered promiscuous mode [ 68.562681][ T4585] device hsr_slave_1 entered promiscuous mode [ 69.129721][ T4585] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.154950][ T4585] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.193023][ T4585] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.213725][ T4585] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.296256][ T4585] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.300057][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.301533][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.304721][ T4585] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.307163][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.308586][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.309914][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.310893][ T363] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.313060][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.316645][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.318173][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.319571][ T541] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.320604][ T541] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.324569][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.327474][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.330487][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.332616][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.335037][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.336449][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.338117][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.343301][ T4585] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 69.344892][ T4585] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.348473][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.357929][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.360025][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.361614][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.366889][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.390891][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.392249][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.395457][ T4585] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.400874][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.403791][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.410507][ T4585] device veth0_vlan entered promiscuous mode [ 69.412816][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.414280][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.415711][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.417041][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.420250][ T4585] device veth1_vlan entered promiscuous mode [ 69.427721][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.429066][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.430414][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.432636][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.435265][ T4585] device veth0_macvtap entered promiscuous mode [ 69.437487][ T4585] device veth1_macvtap entered promiscuous mode [ 69.443055][ T4585] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.444203][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.445572][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.446969][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.448423][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.451414][ T4585] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.454142][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.455614][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.458956][ T4585] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.460212][ T4585] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.461423][ T4585] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.463709][ T4585] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.541477][ T1606] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.548103][ T1606] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.565597][ T1606] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.565998][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.566790][ T1606] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.569347][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.603883][ T1972] cfg80211: failed to load regulatory.db [ 69.606223][ T2067] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.607263][ T2067] ieee802154 phy1 wpan1: encryption failed: -22 1970/01/01 00:01:09 executed programs: 0 [ 70.023309][ T4774] chnl_net:caif_netlink_parms(): no params data found [ 70.069146][ T4774] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.072103][ T4774] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.073620][ T4774] device bridge_slave_0 entered promiscuous mode [ 70.083505][ T4774] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.084581][ T4774] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.086023][ T4774] device bridge_slave_1 entered promiscuous mode [ 70.100289][ T4774] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.105244][ T4774] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.113463][ T4774] team0: Port device team_slave_0 added [ 70.117739][ T4774] team0: Port device team_slave_1 added [ 70.125892][ T4774] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.127002][ T4774] 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. [ 70.130785][ T4774] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.143968][ T4774] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.145040][ T4774] 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. [ 70.148624][ T4774] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.203341][ T4774] device hsr_slave_0 entered promiscuous mode [ 70.222490][ T4774] device hsr_slave_1 entered promiscuous mode [ 70.281984][ T4774] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.283249][ T4774] Cannot create hsr debugfs directory [ 70.315765][ T4774] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.931953][ T4187] Bluetooth: hci0: command 0x0409 tx timeout [ 72.985558][ T4774] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.001900][ T4187] Bluetooth: hci0: command 0x041b tx timeout [ 75.303363][ T4774] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.395856][ T4774] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.535047][ T4774] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.573245][ T4774] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.623116][ T4774] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.667834][ T4774] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.740682][ T4774] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.745270][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.746772][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.749199][ T4774] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.751616][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.753425][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.754761][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.755775][ T363] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.757046][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.759669][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.761130][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.762604][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.763692][ T363] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.766253][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.768883][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.771367][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.774195][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.780195][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.782591][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.784102][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.786759][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.788463][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.791077][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.793660][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.796408][ T4774] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.834157][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.835422][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.838459][ T4774] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.845236][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.846668][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.857782][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.859427][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.860907][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.862569][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.864370][ T4774] device veth0_vlan entered promiscuous mode [ 75.868251][ T4774] device veth1_vlan entered promiscuous mode [ 75.874960][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.876596][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.877937][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.879376][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.881703][ T4774] device veth0_macvtap entered promiscuous mode [ 75.884920][ T4774] device veth1_macvtap entered promiscuous mode [ 75.889409][ T4774] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 75.890977][ T4774] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.893104][ T4774] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.894329][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.895809][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.897185][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.898806][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.901640][ T4774] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 75.903947][ T4774] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.906721][ T4774] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.907816][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.909519][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.912215][ T4774] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.913485][ T4774] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.914782][ T4774] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.916092][ T4774] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.937519][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.938917][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.940406][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.947385][ T541] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.948622][ T541] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.950275][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:15 executed programs: 2 [ 75.970676][ T4989] dccp_xmit_packet: Payload too large (65475) for featneg. [ 75.994909][ T4991] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.001561][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.004662][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.005798][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.007309][ T4991] Call trace: [ 76.007810][ T4991] dump_backtrace+0x0/0x43c [ 76.008507][ T4991] show_stack+0x2c/0x3c [ 76.009143][ T4991] __dump_stack+0x30/0x40 [ 76.009770][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.010462][ T4991] dump_stack+0x1c/0x5c [ 76.011138][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.012058][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.012879][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.013684][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.014418][ T4991] inet_sendmsg+0x154/0x284 [ 76.015188][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.015913][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.016668][ T4991] invoke_syscall+0x98/0x2b8 [ 76.017383][ T4991] el0_svc_common+0x138/0x258 [ 76.018089][ T4991] do_el0_svc+0x58/0x14c [ 76.018739][ T4991] el0_svc+0x78/0x1e0 [ 76.019341][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.020096][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.021305][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.023080][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.024112][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.025580][ T4991] Call trace: [ 76.026050][ T4991] dump_backtrace+0x0/0x43c [ 76.026721][ T4991] show_stack+0x2c/0x3c [ 76.027322][ T4991] __dump_stack+0x30/0x40 [ 76.027956][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.028601][ T4991] dump_stack+0x1c/0x5c [ 76.029265][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.030093][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.030899][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.031605][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.032279][ T4991] inet_sendmsg+0x154/0x284 [ 76.033010][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.033765][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.034552][ T4991] invoke_syscall+0x98/0x2b8 [ 76.035269][ T4991] el0_svc_common+0x138/0x258 [ 76.036107][ T4991] do_el0_svc+0x58/0x14c [ 76.036769][ T4991] el0_svc+0x78/0x1e0 [ 76.037366][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.038174][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.039228][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.040996][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.042103][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.043719][ T4991] Call trace: [ 76.044252][ T4991] dump_backtrace+0x0/0x43c [ 76.044957][ T4991] show_stack+0x2c/0x3c [ 76.045591][ T4991] __dump_stack+0x30/0x40 [ 76.046323][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.047063][ T4991] dump_stack+0x1c/0x5c [ 76.047741][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.048570][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.049266][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.049987][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.050686][ T4991] inet_sendmsg+0x154/0x284 [ 76.051411][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.052200][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.053007][ T4991] invoke_syscall+0x98/0x2b8 [ 76.053791][ T4991] el0_svc_common+0x138/0x258 [ 76.054609][ T4991] do_el0_svc+0x58/0x14c [ 76.055322][ T4991] el0_svc+0x78/0x1e0 [ 76.055935][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.056723][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.057662][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.059459][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.060654][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.062160][ T4991] Call trace: [ 76.062697][ T4991] dump_backtrace+0x0/0x43c [ 76.063444][ T4991] show_stack+0x2c/0x3c [ 76.064172][ T4991] __dump_stack+0x30/0x40 [ 76.064867][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.065582][ T4991] dump_stack+0x1c/0x5c [ 76.066276][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.067186][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.067950][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.068673][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.069426][ T4991] inet_sendmsg+0x154/0x284 [ 76.070140][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.070891][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.071661][ T4991] invoke_syscall+0x98/0x2b8 [ 76.072394][ T4991] el0_svc_common+0x138/0x258 [ 76.073156][ T4991] do_el0_svc+0x58/0x14c [ 76.073839][ T4991] el0_svc+0x78/0x1e0 [ 76.074522][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.075330][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.077050][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.078869][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.079984][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.081583][ T4991] Call trace: [ 76.082137][ T4991] dump_backtrace+0x0/0x43c [ 76.082788][ T4991] show_stack+0x2c/0x3c [ 76.083465][ T4991] __dump_stack+0x30/0x40 [ 76.084086][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.084763][ T4991] dump_stack+0x1c/0x5c [ 76.085436][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.086341][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.087153][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.087920][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.088628][ T4991] inet_sendmsg+0x154/0x284 [ 76.089379][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.090145][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.090985][ T4991] invoke_syscall+0x98/0x2b8 [ 76.091712][ T4991] el0_svc_common+0x138/0x258 [ 76.092464][ T4991] do_el0_svc+0x58/0x14c [ 76.093123][ T4991] el0_svc+0x78/0x1e0 [ 76.093803][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.094587][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.095683][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.097316][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.098486][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.100232][ T4991] Call trace: [ 76.100738][ T4991] dump_backtrace+0x0/0x43c [ 76.101356][ T4991] show_stack+0x2c/0x3c [ 76.101989][ T4991] __dump_stack+0x30/0x40 [ 76.102549][ T4181] Bluetooth: hci0: command 0x040f tx timeout [ 76.102646][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.104172][ T4991] dump_stack+0x1c/0x5c [ 76.104826][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.105652][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.106401][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.107115][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.107773][ T4991] inet_sendmsg+0x154/0x284 [ 76.108541][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.109249][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.110031][ T4991] invoke_syscall+0x98/0x2b8 [ 76.110786][ T4991] el0_svc_common+0x138/0x258 [ 76.111468][ T4991] do_el0_svc+0x58/0x14c [ 76.112080][ T4991] el0_svc+0x78/0x1e0 [ 76.112709][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.113399][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.114634][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.116338][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.117458][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.119039][ T4991] Call trace: [ 76.119542][ T4991] dump_backtrace+0x0/0x43c [ 76.120236][ T4991] show_stack+0x2c/0x3c [ 76.120887][ T4991] __dump_stack+0x30/0x40 [ 76.121637][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.122398][ T4991] dump_stack+0x1c/0x5c [ 76.123125][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.123998][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.124732][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.125440][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.126149][ T4991] inet_sendmsg+0x154/0x284 [ 76.126808][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.127451][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.128182][ T4991] invoke_syscall+0x98/0x2b8 [ 76.128852][ T4991] el0_svc_common+0x138/0x258 [ 76.129547][ T4991] do_el0_svc+0x58/0x14c [ 76.130159][ T4991] el0_svc+0x78/0x1e0 [ 76.130713][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.131484][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.132609][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.134355][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.135513][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.136957][ T4991] Call trace: [ 76.137453][ T4991] dump_backtrace+0x0/0x43c [ 76.138115][ T4991] show_stack+0x2c/0x3c [ 76.138784][ T4991] __dump_stack+0x30/0x40 [ 76.139446][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.140203][ T4991] dump_stack+0x1c/0x5c [ 76.140851][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.141636][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.142354][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.143139][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.143889][ T4991] inet_sendmsg+0x154/0x284 [ 76.144629][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.145376][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.146140][ T4991] invoke_syscall+0x98/0x2b8 [ 76.146849][ T4991] el0_svc_common+0x138/0x258 [ 76.147578][ T4991] do_el0_svc+0x58/0x14c [ 76.148199][ T4991] el0_svc+0x78/0x1e0 [ 76.148776][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.149528][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.150489][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.152203][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.153241][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.154703][ T4991] Call trace: [ 76.155219][ T4991] dump_backtrace+0x0/0x43c [ 76.155911][ T4991] show_stack+0x2c/0x3c [ 76.156489][ T4991] __dump_stack+0x30/0x40 [ 76.157144][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.157833][ T4991] dump_stack+0x1c/0x5c [ 76.158469][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.159307][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.160097][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.160839][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.161576][ T4991] inet_sendmsg+0x154/0x284 [ 76.162311][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.163067][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.163879][ T4991] invoke_syscall+0x98/0x2b8 [ 76.164669][ T4991] el0_svc_common+0x138/0x258 [ 76.165447][ T4991] do_el0_svc+0x58/0x14c [ 76.166123][ T4991] el0_svc+0x78/0x1e0 [ 76.166744][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.167577][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.168701][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.170882][ T4991] CPU: 0 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.172042][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.173753][ T4991] Call trace: [ 76.174285][ T4991] dump_backtrace+0x0/0x43c [ 76.175021][ T4991] show_stack+0x2c/0x3c [ 76.175695][ T4991] __dump_stack+0x30/0x40 [ 76.176438][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.177216][ T4991] dump_stack+0x1c/0x5c [ 76.177890][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.178776][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.179530][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.180260][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.181012][ T4991] inet_sendmsg+0x154/0x284 [ 76.181753][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.182388][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.183116][ T4991] invoke_syscall+0x98/0x2b8 [ 76.183792][ T4991] el0_svc_common+0x138/0x258 [ 76.184566][ T4991] do_el0_svc+0x58/0x14c [ 76.185219][ T4991] el0_svc+0x78/0x1e0 [ 76.185839][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.186588][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.187881][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.189787][ T4991] CPU: 1 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.190958][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.192552][ T4991] Call trace: [ 76.193066][ T4991] dump_backtrace+0x0/0x43c [ 76.193749][ T4991] show_stack+0x2c/0x3c [ 76.194365][ T4991] __dump_stack+0x30/0x40 [ 76.194981][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.195708][ T4991] dump_stack+0x1c/0x5c [ 76.196368][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.197183][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.197991][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.198760][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.199535][ T4991] inet_sendmsg+0x154/0x284 [ 76.200265][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.201004][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.201801][ T4991] invoke_syscall+0x98/0x2b8 [ 76.202579][ T4991] el0_svc_common+0x138/0x258 [ 76.203366][ T4991] do_el0_svc+0x58/0x14c [ 76.204046][ T4991] el0_svc+0x78/0x1e0 [ 76.204625][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.205474][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.208677][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.210392][ T4991] CPU: 1 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.211472][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.212999][ T4991] Call trace: [ 76.213545][ T4991] dump_backtrace+0x0/0x43c [ 76.214286][ T4991] show_stack+0x2c/0x3c [ 76.214964][ T4991] __dump_stack+0x30/0x40 [ 76.215705][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.216500][ T4991] dump_stack+0x1c/0x5c [ 76.217195][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.218000][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.218732][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.219507][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.220227][ T4991] inet_sendmsg+0x154/0x284 [ 76.220956][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.221670][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.222416][ T4991] invoke_syscall+0x98/0x2b8 [ 76.223134][ T4991] el0_svc_common+0x138/0x258 [ 76.223834][ T4991] do_el0_svc+0x58/0x14c [ 76.224435][ T4991] el0_svc+0x78/0x1e0 [ 76.225017][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.225698][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.227420][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.229009][ T4991] CPU: 1 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.230112][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.231718][ T4991] Call trace: [ 76.232230][ T4991] dump_backtrace+0x0/0x43c [ 76.232933][ T4991] show_stack+0x2c/0x3c [ 76.233624][ T4991] __dump_stack+0x30/0x40 [ 76.234334][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.235096][ T4991] dump_stack+0x1c/0x5c [ 76.235783][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.236718][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.237545][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.238367][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.239140][ T4991] inet_sendmsg+0x154/0x284 [ 76.239789][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.240445][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.241160][ T4991] invoke_syscall+0x98/0x2b8 [ 76.241895][ T4991] el0_svc_common+0x138/0x258 [ 76.242665][ T4991] do_el0_svc+0x58/0x14c [ 76.243446][ T4991] el0_svc+0x78/0x1e0 [ 76.244089][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.244925][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.246155][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.247889][ T4991] CPU: 1 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.249091][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.250646][ T4991] Call trace: [ 76.251151][ T4991] dump_backtrace+0x0/0x43c [ 76.251857][ T4991] show_stack+0x2c/0x3c [ 76.252505][ T4991] __dump_stack+0x30/0x40 [ 76.253213][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.253936][ T4991] dump_stack+0x1c/0x5c [ 76.254519][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.255378][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.256149][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.256905][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.257626][ T4991] inet_sendmsg+0x154/0x284 [ 76.258310][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.258986][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.259774][ T4991] invoke_syscall+0x98/0x2b8 [ 76.260445][ T4991] el0_svc_common+0x138/0x258 [ 76.261104][ T4991] do_el0_svc+0x58/0x14c [ 76.261844][ T4991] el0_svc+0x78/0x1e0 [ 76.262507][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.263345][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.264369][ T4991] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.266060][ T4991] CPU: 1 PID: 4991 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.267142][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.268597][ T4991] Call trace: [ 76.269140][ T4991] dump_backtrace+0x0/0x43c [ 76.269826][ T4991] show_stack+0x2c/0x3c [ 76.270484][ T4991] __dump_stack+0x30/0x40 [ 76.271184][ T4991] dump_stack_lvl+0xf8/0x160 [ 76.271885][ T4991] dump_stack+0x1c/0x5c [ 76.272533][ T4991] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.273355][ T4991] dccp_xmit_packet+0x298/0x448 [ 76.274160][ T4991] dccp_write_xmit+0x118/0x1d0 [ 76.274942][ T4991] dccp_sendmsg+0x538/0x8a8 [ 76.275632][ T4991] inet_sendmsg+0x154/0x284 [ 76.276372][ T4991] __sys_sendto+0x2e8/0x3d8 [ 76.277063][ T4991] __arm64_sys_sendto+0xd8/0xf8 [ 76.277877][ T4991] invoke_syscall+0x98/0x2b8 [ 76.278646][ T4991] el0_svc_common+0x138/0x258 [ 76.279355][ T4991] do_el0_svc+0x58/0x14c [ 76.280061][ T4991] el0_svc+0x78/0x1e0 [ 76.280744][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 76.281542][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 76.291549][ T4993] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.299023][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.301345][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.302479][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.304011][ T4993] Call trace: [ 76.304484][ T4993] dump_backtrace+0x0/0x43c [ 76.305216][ T4993] show_stack+0x2c/0x3c [ 76.305890][ T4993] __dump_stack+0x30/0x40 [ 76.306595][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.307365][ T4993] dump_stack+0x1c/0x5c [ 76.308058][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.308932][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.309758][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.310523][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.311227][ T4993] inet_sendmsg+0x154/0x284 [ 76.311973][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.312677][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.313428][ T4993] invoke_syscall+0x98/0x2b8 [ 76.314155][ T4993] el0_svc_common+0x138/0x258 [ 76.314923][ T4993] do_el0_svc+0x58/0x14c [ 76.315718][ T4993] el0_svc+0x78/0x1e0 [ 76.316436][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.317233][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.319399][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.321273][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.322401][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.323929][ T4993] Call trace: [ 76.324416][ T4993] dump_backtrace+0x0/0x43c [ 76.325092][ T4993] show_stack+0x2c/0x3c [ 76.325709][ T4993] __dump_stack+0x30/0x40 [ 76.326348][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.327029][ T4993] dump_stack+0x1c/0x5c [ 76.327631][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.328437][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.329129][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.329815][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.330461][ T4993] inet_sendmsg+0x154/0x284 [ 76.331120][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.331811][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.332528][ T4993] invoke_syscall+0x98/0x2b8 [ 76.333202][ T4993] el0_svc_common+0x138/0x258 [ 76.333968][ T4993] do_el0_svc+0x58/0x14c [ 76.334646][ T4993] el0_svc+0x78/0x1e0 [ 76.335296][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.336160][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.337336][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.339040][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.340096][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.341499][ T4993] Call trace: [ 76.341994][ T4993] dump_backtrace+0x0/0x43c [ 76.342700][ T4993] show_stack+0x2c/0x3c [ 76.343363][ T4993] __dump_stack+0x30/0x40 [ 76.344060][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.344821][ T4993] dump_stack+0x1c/0x5c [ 76.345509][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.346361][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.347117][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.347871][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.348599][ T4993] inet_sendmsg+0x154/0x284 [ 76.349261][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.349924][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.350650][ T4993] invoke_syscall+0x98/0x2b8 [ 76.351399][ T4993] el0_svc_common+0x138/0x258 [ 76.352101][ T4993] do_el0_svc+0x58/0x14c [ 76.352724][ T4993] el0_svc+0x78/0x1e0 [ 76.353343][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.354179][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.355276][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.356978][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.358034][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.359429][ T4993] Call trace: [ 76.359921][ T4993] dump_backtrace+0x0/0x43c [ 76.360592][ T4993] show_stack+0x2c/0x3c [ 76.361198][ T4993] __dump_stack+0x30/0x40 [ 76.361803][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.362495][ T4993] dump_stack+0x1c/0x5c [ 76.363154][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.364035][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.364827][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.365635][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.366337][ T4993] inet_sendmsg+0x154/0x284 [ 76.367120][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.367802][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.368526][ T4993] invoke_syscall+0x98/0x2b8 [ 76.369251][ T4993] el0_svc_common+0x138/0x258 [ 76.370018][ T4993] do_el0_svc+0x58/0x14c [ 76.370633][ T4993] el0_svc+0x78/0x1e0 [ 76.371232][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.371952][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.373035][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.374588][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.375693][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.377090][ T4993] Call trace: [ 76.377525][ T4993] dump_backtrace+0x0/0x43c [ 76.378178][ T4993] show_stack+0x2c/0x3c [ 76.378783][ T4993] __dump_stack+0x30/0x40 [ 76.379401][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.380123][ T4993] dump_stack+0x1c/0x5c [ 76.380872][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.381790][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.382580][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.383418][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.384162][ T4993] inet_sendmsg+0x154/0x284 [ 76.384914][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.385648][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.386475][ T4993] invoke_syscall+0x98/0x2b8 [ 76.387287][ T4993] el0_svc_common+0x138/0x258 [ 76.388059][ T4993] do_el0_svc+0x58/0x14c [ 76.388716][ T4993] el0_svc+0x78/0x1e0 [ 76.389336][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.390073][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.391005][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.392816][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.393895][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.395377][ T4993] Call trace: [ 76.395834][ T4993] dump_backtrace+0x0/0x43c [ 76.396505][ T4993] show_stack+0x2c/0x3c [ 76.397111][ T4993] __dump_stack+0x30/0x40 [ 76.397802][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.398554][ T4993] dump_stack+0x1c/0x5c [ 76.399208][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.400104][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.400889][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.401683][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.402438][ T4993] inet_sendmsg+0x154/0x284 [ 76.403184][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.403864][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.404640][ T4993] invoke_syscall+0x98/0x2b8 [ 76.405409][ T4993] el0_svc_common+0x138/0x258 [ 76.406159][ T4993] do_el0_svc+0x58/0x14c [ 76.406832][ T4993] el0_svc+0x78/0x1e0 [ 76.407473][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.408349][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.409881][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.411656][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.412805][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.414412][ T4993] Call trace: [ 76.414913][ T4993] dump_backtrace+0x0/0x43c [ 76.415562][ T4993] show_stack+0x2c/0x3c [ 76.416219][ T4993] __dump_stack+0x30/0x40 [ 76.416829][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.417514][ T4993] dump_stack+0x1c/0x5c [ 76.418115][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.418902][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.419625][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.420327][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.421001][ T4993] inet_sendmsg+0x154/0x284 [ 76.421702][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.422400][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.423151][ T4993] invoke_syscall+0x98/0x2b8 [ 76.423803][ T4993] el0_svc_common+0x138/0x258 [ 76.424532][ T4993] do_el0_svc+0x58/0x14c [ 76.425190][ T4993] el0_svc+0x78/0x1e0 [ 76.425791][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.426542][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.427516][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.429123][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.430181][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.431830][ T4993] Call trace: [ 76.432363][ T4993] dump_backtrace+0x0/0x43c [ 76.433079][ T4993] show_stack+0x2c/0x3c [ 76.433748][ T4993] __dump_stack+0x30/0x40 [ 76.434493][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.435261][ T4993] dump_stack+0x1c/0x5c [ 76.435943][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.436829][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.437669][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.438505][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.439253][ T4993] inet_sendmsg+0x154/0x284 [ 76.439989][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.440754][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.441520][ T4993] invoke_syscall+0x98/0x2b8 [ 76.442250][ T4993] el0_svc_common+0x138/0x258 [ 76.442978][ T4993] do_el0_svc+0x58/0x14c [ 76.443613][ T4993] el0_svc+0x78/0x1e0 [ 76.444234][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.445017][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.446095][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.447729][ T4993] CPU: 0 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.448782][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.450191][ T4993] Call trace: [ 76.450675][ T4993] dump_backtrace+0x0/0x43c [ 76.451334][ T4993] show_stack+0x2c/0x3c [ 76.451952][ T4993] __dump_stack+0x30/0x40 [ 76.452648][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.453374][ T4993] dump_stack+0x1c/0x5c [ 76.454062][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.454848][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.455684][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.456464][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.457231][ T4993] inet_sendmsg+0x154/0x284 [ 76.457966][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.458721][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.459506][ T4993] invoke_syscall+0x98/0x2b8 [ 76.460239][ T4993] el0_svc_common+0x138/0x258 [ 76.460995][ T4993] do_el0_svc+0x58/0x14c [ 76.461698][ T4993] el0_svc+0x78/0x1e0 [ 76.462386][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.463225][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.464288][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.466021][ T4993] CPU: 1 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.467169][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.468711][ T4993] Call trace: [ 76.469206][ T4993] dump_backtrace+0x0/0x43c [ 76.469938][ T4993] show_stack+0x2c/0x3c [ 76.470649][ T4993] __dump_stack+0x30/0x40 [ 76.471322][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.472077][ T4993] dump_stack+0x1c/0x5c [ 76.472692][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.473578][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.474349][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.475049][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.475739][ T4993] inet_sendmsg+0x154/0x284 [ 76.476380][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.477037][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.477731][ T4993] invoke_syscall+0x98/0x2b8 [ 76.478403][ T4993] el0_svc_common+0x138/0x258 [ 76.479156][ T4993] do_el0_svc+0x58/0x14c [ 76.479804][ T4993] el0_svc+0x78/0x1e0 [ 76.480373][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.481133][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.483275][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.484961][ T4993] CPU: 1 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.486045][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.487629][ T4993] Call trace: [ 76.488095][ T4993] dump_backtrace+0x0/0x43c [ 76.488783][ T4993] show_stack+0x2c/0x3c [ 76.489471][ T4993] __dump_stack+0x30/0x40 [ 76.490149][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.490872][ T4993] dump_stack+0x1c/0x5c [ 76.491515][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.492400][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.493154][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.493882][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.494651][ T4993] inet_sendmsg+0x154/0x284 [ 76.495353][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.496082][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.496827][ T4993] invoke_syscall+0x98/0x2b8 [ 76.497519][ T4993] el0_svc_common+0x138/0x258 [ 76.498255][ T4993] do_el0_svc+0x58/0x14c [ 76.498861][ T4993] el0_svc+0x78/0x1e0 [ 76.499460][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.500193][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.501284][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.503313][ T4993] CPU: 1 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.504403][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.505969][ T4993] Call trace: [ 76.506482][ T4993] dump_backtrace+0x0/0x43c [ 76.507215][ T4993] show_stack+0x2c/0x3c [ 76.507897][ T4993] __dump_stack+0x30/0x40 [ 76.508522][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.509241][ T4993] dump_stack+0x1c/0x5c [ 76.509887][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.510716][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.511477][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.512253][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.512941][ T4993] inet_sendmsg+0x154/0x284 [ 76.513648][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.514288][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.515062][ T4993] invoke_syscall+0x98/0x2b8 [ 76.515807][ T4993] el0_svc_common+0x138/0x258 [ 76.516565][ T4993] do_el0_svc+0x58/0x14c [ 76.517240][ T4993] el0_svc+0x78/0x1e0 [ 76.517856][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.518598][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.519627][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.521251][ T4993] CPU: 1 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.522274][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.523712][ T4993] Call trace: [ 76.524270][ T4993] dump_backtrace+0x0/0x43c [ 76.525010][ T4993] show_stack+0x2c/0x3c [ 76.525705][ T4993] __dump_stack+0x30/0x40 [ 76.526421][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.527225][ T4993] dump_stack+0x1c/0x5c [ 76.527976][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.528830][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.529632][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.530368][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.531098][ T4993] inet_sendmsg+0x154/0x284 [ 76.531780][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.532543][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.533311][ T4993] invoke_syscall+0x98/0x2b8 [ 76.534055][ T4993] el0_svc_common+0x138/0x258 [ 76.534803][ T4993] do_el0_svc+0x58/0x14c [ 76.535479][ T4993] el0_svc+0x78/0x1e0 [ 76.536165][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.537027][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.538058][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.539727][ T4993] CPU: 1 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.540737][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.542184][ T4993] Call trace: [ 76.542655][ T4993] dump_backtrace+0x0/0x43c [ 76.543297][ T4993] show_stack+0x2c/0x3c [ 76.544024][ T4993] __dump_stack+0x30/0x40 [ 76.544772][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.545583][ T4993] dump_stack+0x1c/0x5c [ 76.546306][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.547130][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.547924][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.548740][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.549475][ T4993] inet_sendmsg+0x154/0x284 [ 76.550229][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.550933][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.551628][ T4993] invoke_syscall+0x98/0x2b8 [ 76.552359][ T4993] el0_svc_common+0x138/0x258 [ 76.553109][ T4993] do_el0_svc+0x58/0x14c [ 76.553803][ T4993] el0_svc+0x78/0x1e0 [ 76.554414][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.555208][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.556101][ T4993] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.557759][ T4993] CPU: 1 PID: 4993 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.558967][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.560515][ T4993] Call trace: [ 76.561029][ T4993] dump_backtrace+0x0/0x43c [ 76.561741][ T4993] show_stack+0x2c/0x3c [ 76.562407][ T4993] __dump_stack+0x30/0x40 [ 76.563154][ T4993] dump_stack_lvl+0xf8/0x160 [ 76.563906][ T4993] dump_stack+0x1c/0x5c [ 76.564611][ T4993] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.565459][ T4993] dccp_xmit_packet+0x298/0x448 [ 76.566188][ T4993] dccp_write_xmit+0x118/0x1d0 [ 76.566958][ T4993] dccp_sendmsg+0x538/0x8a8 [ 76.567650][ T4993] inet_sendmsg+0x154/0x284 [ 76.568379][ T4993] __sys_sendto+0x2e8/0x3d8 [ 76.569106][ T4993] __arm64_sys_sendto+0xd8/0xf8 [ 76.569925][ T4993] invoke_syscall+0x98/0x2b8 [ 76.570637][ T4993] el0_svc_common+0x138/0x258 [ 76.571446][ T4993] do_el0_svc+0x58/0x14c [ 76.572150][ T4993] el0_svc+0x78/0x1e0 [ 76.572758][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 76.573537][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 76.586127][ T4995] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.593903][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.595644][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.596719][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.598232][ T4995] Call trace: [ 76.598743][ T4995] dump_backtrace+0x0/0x43c [ 76.599444][ T4995] show_stack+0x2c/0x3c [ 76.600097][ T4995] __dump_stack+0x30/0x40 [ 76.600860][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.601590][ T4995] dump_stack+0x1c/0x5c [ 76.602276][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.603229][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.603995][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.604850][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.605566][ T4995] inet_sendmsg+0x154/0x284 [ 76.606246][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.606884][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.607654][ T4995] invoke_syscall+0x98/0x2b8 [ 76.608382][ T4995] el0_svc_common+0x138/0x258 [ 76.609072][ T4995] do_el0_svc+0x58/0x14c [ 76.609722][ T4995] el0_svc+0x78/0x1e0 [ 76.610321][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.611099][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.612250][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.613957][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.614958][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.616613][ T4995] Call trace: [ 76.617077][ T4995] dump_backtrace+0x0/0x43c [ 76.617811][ T4995] show_stack+0x2c/0x3c [ 76.618486][ T4995] __dump_stack+0x30/0x40 [ 76.619181][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.619885][ T4995] dump_stack+0x1c/0x5c [ 76.620557][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.621429][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.622206][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.622983][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.623667][ T4995] inet_sendmsg+0x154/0x284 [ 76.624375][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.625085][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.625891][ T4995] invoke_syscall+0x98/0x2b8 [ 76.626698][ T4995] el0_svc_common+0x138/0x258 [ 76.627456][ T4995] do_el0_svc+0x58/0x14c [ 76.628147][ T4995] el0_svc+0x78/0x1e0 [ 76.628760][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.629584][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.630763][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.632522][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.633614][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.635182][ T4995] Call trace: [ 76.635699][ T4995] dump_backtrace+0x0/0x43c [ 76.636365][ T4995] show_stack+0x2c/0x3c [ 76.636990][ T4995] __dump_stack+0x30/0x40 [ 76.637653][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.638350][ T4995] dump_stack+0x1c/0x5c [ 76.639070][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.639945][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.640733][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.641454][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.642139][ T4995] inet_sendmsg+0x154/0x284 [ 76.642877][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.643640][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.644417][ T4995] invoke_syscall+0x98/0x2b8 [ 76.645205][ T4995] el0_svc_common+0x138/0x258 [ 76.646042][ T4995] do_el0_svc+0x58/0x14c [ 76.646778][ T4995] el0_svc+0x78/0x1e0 [ 76.647388][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.648215][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.649910][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.651761][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.652908][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.654673][ T4995] Call trace: [ 76.655194][ T4995] dump_backtrace+0x0/0x43c [ 76.655984][ T4995] show_stack+0x2c/0x3c [ 76.656677][ T4995] __dump_stack+0x30/0x40 [ 76.657366][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.658109][ T4995] dump_stack+0x1c/0x5c [ 76.658686][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.659508][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.660262][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.660965][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.661685][ T4995] inet_sendmsg+0x154/0x284 [ 76.662450][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.663182][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.663896][ T4995] invoke_syscall+0x98/0x2b8 [ 76.664598][ T4995] el0_svc_common+0x138/0x258 [ 76.665301][ T4995] do_el0_svc+0x58/0x14c [ 76.665998][ T4995] el0_svc+0x78/0x1e0 [ 76.666690][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.667543][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.668475][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.670310][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.671463][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.673124][ T4995] Call trace: [ 76.673664][ T4995] dump_backtrace+0x0/0x43c [ 76.674420][ T4995] show_stack+0x2c/0x3c [ 76.675109][ T4995] __dump_stack+0x30/0x40 [ 76.675800][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.676519][ T4995] dump_stack+0x1c/0x5c [ 76.677161][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.677982][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.678746][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.679511][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.680260][ T4995] inet_sendmsg+0x154/0x284 [ 76.680985][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.681707][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.682502][ T4995] invoke_syscall+0x98/0x2b8 [ 76.683250][ T4995] el0_svc_common+0x138/0x258 [ 76.683980][ T4995] do_el0_svc+0x58/0x14c [ 76.684643][ T4995] el0_svc+0x78/0x1e0 [ 76.685334][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.686063][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.687008][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.688686][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.689721][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.691244][ T4995] Call trace: [ 76.691766][ T4995] dump_backtrace+0x0/0x43c [ 76.692499][ T4995] show_stack+0x2c/0x3c [ 76.693162][ T4995] __dump_stack+0x30/0x40 [ 76.693828][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.694538][ T4995] dump_stack+0x1c/0x5c [ 76.695204][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.696163][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.696945][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.697696][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.698470][ T4995] inet_sendmsg+0x154/0x284 [ 76.699219][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.699918][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.700672][ T4995] invoke_syscall+0x98/0x2b8 [ 76.701423][ T4995] el0_svc_common+0x138/0x258 [ 76.702175][ T4995] do_el0_svc+0x58/0x14c [ 76.702887][ T4995] el0_svc+0x78/0x1e0 [ 76.703532][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.704324][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.706174][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.707971][ T4995] CPU: 1 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.708998][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.710517][ T4995] Call trace: [ 76.711079][ T4995] dump_backtrace+0x0/0x43c [ 76.711833][ T4995] show_stack+0x2c/0x3c [ 76.712448][ T4995] __dump_stack+0x30/0x40 [ 76.713132][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.713863][ T4995] dump_stack+0x1c/0x5c [ 76.714469][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.715272][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.716040][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.716778][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.717428][ T4995] inet_sendmsg+0x154/0x284 [ 76.718139][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.718876][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.719606][ T4995] invoke_syscall+0x98/0x2b8 [ 76.720288][ T4995] el0_svc_common+0x138/0x258 [ 76.721008][ T4995] do_el0_svc+0x58/0x14c [ 76.721622][ T4995] el0_svc+0x78/0x1e0 [ 76.722277][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.723064][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.724784][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.726472][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.727667][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.729254][ T4995] Call trace: [ 76.729760][ T4995] dump_backtrace+0x0/0x43c [ 76.730464][ T4995] show_stack+0x2c/0x3c [ 76.731200][ T4995] __dump_stack+0x30/0x40 [ 76.731975][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.732751][ T4995] dump_stack+0x1c/0x5c [ 76.733398][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.734378][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.735108][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.735953][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.736701][ T4995] inet_sendmsg+0x154/0x284 [ 76.737474][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.738220][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.738990][ T4995] invoke_syscall+0x98/0x2b8 [ 76.739713][ T4995] el0_svc_common+0x138/0x258 [ 76.740500][ T4995] do_el0_svc+0x58/0x14c [ 76.741198][ T4995] el0_svc+0x78/0x1e0 [ 76.741891][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.742737][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.744858][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.746451][ T4995] CPU: 1 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.747611][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.749163][ T4995] Call trace: [ 76.749637][ T4995] dump_backtrace+0x0/0x43c [ 76.750292][ T4995] show_stack+0x2c/0x3c [ 76.750900][ T4995] __dump_stack+0x30/0x40 [ 76.751587][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.752345][ T4995] dump_stack+0x1c/0x5c [ 76.753034][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.753870][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.754626][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.755339][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.756048][ T4995] inet_sendmsg+0x154/0x284 [ 76.756688][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.757363][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.758149][ T4995] invoke_syscall+0x98/0x2b8 [ 76.758829][ T4995] el0_svc_common+0x138/0x258 [ 76.759602][ T4995] do_el0_svc+0x58/0x14c [ 76.760241][ T4995] el0_svc+0x78/0x1e0 [ 76.760813][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.761552][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.763220][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.765026][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.766256][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.767795][ T4995] Call trace: [ 76.768304][ T4995] dump_backtrace+0x0/0x43c [ 76.769051][ T4995] show_stack+0x2c/0x3c [ 76.769689][ T4995] __dump_stack+0x30/0x40 [ 76.770307][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.771068][ T4995] dump_stack+0x1c/0x5c [ 76.771703][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.772518][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.773235][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.773939][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.774686][ T4995] inet_sendmsg+0x154/0x284 [ 76.775454][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.776124][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.776828][ T4995] invoke_syscall+0x98/0x2b8 [ 76.777589][ T4995] el0_svc_common+0x138/0x258 [ 76.778357][ T4995] do_el0_svc+0x58/0x14c [ 76.779031][ T4995] el0_svc+0x78/0x1e0 [ 76.779622][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.780381][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.781292][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.783296][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.784365][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.785979][ T4995] Call trace: [ 76.786461][ T4995] dump_backtrace+0x0/0x43c [ 76.787146][ T4995] show_stack+0x2c/0x3c [ 76.787822][ T4995] __dump_stack+0x30/0x40 [ 76.788534][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.789239][ T4995] dump_stack+0x1c/0x5c [ 76.789859][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.790658][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.791466][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.792259][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.793017][ T4995] inet_sendmsg+0x154/0x284 [ 76.793803][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.794517][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.795310][ T4995] invoke_syscall+0x98/0x2b8 [ 76.796104][ T4995] el0_svc_common+0x138/0x258 [ 76.796900][ T4995] do_el0_svc+0x58/0x14c [ 76.797544][ T4995] el0_svc+0x78/0x1e0 [ 76.798182][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.798998][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.799832][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.801539][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.802683][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.804282][ T4995] Call trace: [ 76.804772][ T4995] dump_backtrace+0x0/0x43c [ 76.805440][ T4995] show_stack+0x2c/0x3c [ 76.806076][ T4995] __dump_stack+0x30/0x40 [ 76.806727][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.807429][ T4995] dump_stack+0x1c/0x5c [ 76.808057][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.808936][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.809717][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.810438][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.811140][ T4995] inet_sendmsg+0x154/0x284 [ 76.811900][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.812604][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.813403][ T4995] invoke_syscall+0x98/0x2b8 [ 76.814103][ T4995] el0_svc_common+0x138/0x258 [ 76.814908][ T4995] do_el0_svc+0x58/0x14c [ 76.815598][ T4995] el0_svc+0x78/0x1e0 [ 76.816268][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.817103][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.818416][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.820147][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.821205][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.822720][ T4995] Call trace: [ 76.823283][ T4995] dump_backtrace+0x0/0x43c [ 76.824089][ T4995] show_stack+0x2c/0x3c [ 76.824770][ T4995] __dump_stack+0x30/0x40 [ 76.825511][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.826278][ T4995] dump_stack+0x1c/0x5c [ 76.826915][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.827807][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.828587][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.829355][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.830038][ T4995] inet_sendmsg+0x154/0x284 [ 76.830720][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.831429][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.832219][ T4995] invoke_syscall+0x98/0x2b8 [ 76.832890][ T4995] el0_svc_common+0x138/0x258 [ 76.833597][ T4995] do_el0_svc+0x58/0x14c [ 76.834297][ T4995] el0_svc+0x78/0x1e0 [ 76.834933][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.835724][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.836686][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.838412][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.839452][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.841077][ T4995] Call trace: [ 76.841604][ T4995] dump_backtrace+0x0/0x43c [ 76.842375][ T4995] show_stack+0x2c/0x3c [ 76.843076][ T4995] __dump_stack+0x30/0x40 [ 76.843761][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.844497][ T4995] dump_stack+0x1c/0x5c [ 76.845162][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.846058][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.846848][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.847613][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.848318][ T4995] inet_sendmsg+0x154/0x284 [ 76.849045][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.849770][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.850564][ T4995] invoke_syscall+0x98/0x2b8 [ 76.851322][ T4995] el0_svc_common+0x138/0x258 [ 76.852084][ T4995] do_el0_svc+0x58/0x14c [ 76.852757][ T4995] el0_svc+0x78/0x1e0 [ 76.853410][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.854274][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.855632][ T4995] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.857409][ T4995] CPU: 0 PID: 4995 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.858473][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.860004][ T4995] Call trace: [ 76.860471][ T4995] dump_backtrace+0x0/0x43c [ 76.861179][ T4995] show_stack+0x2c/0x3c [ 76.861746][ T4995] __dump_stack+0x30/0x40 [ 76.862419][ T4995] dump_stack_lvl+0xf8/0x160 [ 76.863116][ T4995] dump_stack+0x1c/0x5c [ 76.863721][ T4995] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.864556][ T4995] dccp_xmit_packet+0x298/0x448 [ 76.865403][ T4995] dccp_write_xmit+0x118/0x1d0 [ 76.866122][ T4995] dccp_sendmsg+0x538/0x8a8 [ 76.866898][ T4995] inet_sendmsg+0x154/0x284 [ 76.867587][ T4995] __sys_sendto+0x2e8/0x3d8 [ 76.868374][ T4995] __arm64_sys_sendto+0xd8/0xf8 [ 76.869184][ T4995] invoke_syscall+0x98/0x2b8 [ 76.869918][ T4995] el0_svc_common+0x138/0x258 [ 76.870726][ T4995] do_el0_svc+0x58/0x14c [ 76.871418][ T4995] el0_svc+0x78/0x1e0 [ 76.872058][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 76.872854][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 76.883491][ T4997] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.896419][ T4999] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.903314][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.904998][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.906220][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.907883][ T4999] Call trace: [ 76.908421][ T4999] dump_backtrace+0x0/0x43c [ 76.909176][ T4999] show_stack+0x2c/0x3c [ 76.909887][ T4999] __dump_stack+0x30/0x40 [ 76.910554][ T4999] dump_stack_lvl+0xf8/0x160 [ 76.911264][ T4999] dump_stack+0x1c/0x5c [ 76.911923][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.912846][ T4999] dccp_xmit_packet+0x298/0x448 [ 76.913552][ T4999] dccp_write_xmit+0x118/0x1d0 [ 76.914389][ T4999] dccp_sendmsg+0x538/0x8a8 [ 76.915069][ T4999] inet_sendmsg+0x154/0x284 [ 76.915746][ T4999] __sys_sendto+0x2e8/0x3d8 [ 76.916503][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 76.917265][ T4999] invoke_syscall+0x98/0x2b8 [ 76.917982][ T4999] el0_svc_common+0x138/0x258 [ 76.918693][ T4999] do_el0_svc+0x58/0x14c [ 76.919392][ T4999] el0_svc+0x78/0x1e0 [ 76.920014][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 76.920784][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 76.922444][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.924200][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.925258][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.926718][ T4999] Call trace: [ 76.927244][ T4999] dump_backtrace+0x0/0x43c [ 76.927936][ T4999] show_stack+0x2c/0x3c [ 76.928570][ T4999] __dump_stack+0x30/0x40 [ 76.929232][ T4999] dump_stack_lvl+0xf8/0x160 [ 76.929931][ T4999] dump_stack+0x1c/0x5c [ 76.930577][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.931397][ T4999] dccp_xmit_packet+0x298/0x448 [ 76.932134][ T4999] dccp_write_xmit+0x118/0x1d0 [ 76.932846][ T4999] dccp_sendmsg+0x538/0x8a8 [ 76.933603][ T4999] inet_sendmsg+0x154/0x284 [ 76.934351][ T4999] __sys_sendto+0x2e8/0x3d8 [ 76.935059][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 76.935797][ T4999] invoke_syscall+0x98/0x2b8 [ 76.936516][ T4999] el0_svc_common+0x138/0x258 [ 76.937238][ T4999] do_el0_svc+0x58/0x14c [ 76.937902][ T4999] el0_svc+0x78/0x1e0 [ 76.938508][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 76.939393][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 76.940503][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.942270][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.943320][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.944794][ T4999] Call trace: [ 76.945266][ T4999] dump_backtrace+0x0/0x43c [ 76.945979][ T4999] show_stack+0x2c/0x3c [ 76.946582][ T4999] __dump_stack+0x30/0x40 [ 76.947210][ T4999] dump_stack_lvl+0xf8/0x160 [ 76.947938][ T4999] dump_stack+0x1c/0x5c [ 76.948514][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.949367][ T4999] dccp_xmit_packet+0x298/0x448 [ 76.950037][ T4999] dccp_write_xmit+0x118/0x1d0 [ 76.950787][ T4999] dccp_sendmsg+0x538/0x8a8 [ 76.951557][ T4999] inet_sendmsg+0x154/0x284 [ 76.952243][ T4999] __sys_sendto+0x2e8/0x3d8 [ 76.952934][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 76.953691][ T4999] invoke_syscall+0x98/0x2b8 [ 76.954420][ T4999] el0_svc_common+0x138/0x258 [ 76.955176][ T4999] do_el0_svc+0x58/0x14c [ 76.955867][ T4999] el0_svc+0x78/0x1e0 [ 76.956527][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 76.957270][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 76.958401][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.960282][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.961505][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.963089][ T4999] Call trace: [ 76.963591][ T4999] dump_backtrace+0x0/0x43c [ 76.964280][ T4999] show_stack+0x2c/0x3c [ 76.964964][ T4999] __dump_stack+0x30/0x40 [ 76.965697][ T4999] dump_stack_lvl+0xf8/0x160 [ 76.966467][ T4999] dump_stack+0x1c/0x5c [ 76.967142][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.968000][ T4999] dccp_xmit_packet+0x298/0x448 [ 76.968788][ T4999] dccp_write_xmit+0x118/0x1d0 [ 76.969598][ T4999] dccp_sendmsg+0x538/0x8a8 [ 76.970344][ T4999] inet_sendmsg+0x154/0x284 [ 76.971024][ T4999] __sys_sendto+0x2e8/0x3d8 [ 76.971779][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 76.972585][ T4999] invoke_syscall+0x98/0x2b8 [ 76.973334][ T4999] el0_svc_common+0x138/0x258 [ 76.974091][ T4999] do_el0_svc+0x58/0x14c [ 76.974786][ T4999] el0_svc+0x78/0x1e0 [ 76.975465][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 76.976314][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 76.978124][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.979778][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.980822][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.982229][ T4999] Call trace: [ 76.982705][ T4999] dump_backtrace+0x0/0x43c [ 76.983373][ T4999] show_stack+0x2c/0x3c [ 76.983983][ T4999] __dump_stack+0x30/0x40 [ 76.984605][ T4999] dump_stack_lvl+0xf8/0x160 [ 76.985270][ T4999] dump_stack+0x1c/0x5c [ 76.985859][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.986733][ T4999] dccp_xmit_packet+0x298/0x448 [ 76.987538][ T4999] dccp_write_xmit+0x118/0x1d0 [ 76.988245][ T4999] dccp_sendmsg+0x538/0x8a8 [ 76.988906][ T4999] inet_sendmsg+0x154/0x284 [ 76.989586][ T4999] __sys_sendto+0x2e8/0x3d8 [ 76.990371][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 76.991214][ T4999] invoke_syscall+0x98/0x2b8 [ 76.991917][ T4999] el0_svc_common+0x138/0x258 [ 76.992725][ T4999] do_el0_svc+0x58/0x14c [ 76.993397][ T4999] el0_svc+0x78/0x1e0 [ 76.994081][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 76.994965][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 76.996499][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.998132][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.999150][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.000622][ T4999] Call trace: [ 77.001111][ T4999] dump_backtrace+0x0/0x43c [ 77.001816][ T4999] show_stack+0x2c/0x3c [ 77.002461][ T4999] __dump_stack+0x30/0x40 [ 77.003177][ T4999] dump_stack_lvl+0xf8/0x160 [ 77.003966][ T4999] dump_stack+0x1c/0x5c [ 77.004677][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.005614][ T4999] dccp_xmit_packet+0x298/0x448 [ 77.006420][ T4999] dccp_write_xmit+0x118/0x1d0 [ 77.007203][ T4999] dccp_sendmsg+0x538/0x8a8 [ 77.007931][ T4999] inet_sendmsg+0x154/0x284 [ 77.008622][ T4999] __sys_sendto+0x2e8/0x3d8 [ 77.009313][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 77.010103][ T4999] invoke_syscall+0x98/0x2b8 [ 77.010850][ T4999] el0_svc_common+0x138/0x258 [ 77.011637][ T4999] do_el0_svc+0x58/0x14c [ 77.012296][ T4999] el0_svc+0x78/0x1e0 [ 77.012965][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 77.013748][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 77.014723][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.016525][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.017726][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.019391][ T4999] Call trace: [ 77.019976][ T4999] dump_backtrace+0x0/0x43c [ 77.020742][ T4999] show_stack+0x2c/0x3c [ 77.021426][ T4999] __dump_stack+0x30/0x40 [ 77.022190][ T4999] dump_stack_lvl+0xf8/0x160 [ 77.022921][ T4999] dump_stack+0x1c/0x5c [ 77.023617][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.024484][ T4999] dccp_xmit_packet+0x298/0x448 [ 77.025221][ T4999] dccp_write_xmit+0x118/0x1d0 [ 77.025943][ T4999] dccp_sendmsg+0x538/0x8a8 [ 77.026608][ T4999] inet_sendmsg+0x154/0x284 [ 77.027380][ T4999] __sys_sendto+0x2e8/0x3d8 [ 77.028128][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 77.028834][ T4999] invoke_syscall+0x98/0x2b8 [ 77.029474][ T4999] el0_svc_common+0x138/0x258 [ 77.030157][ T4999] do_el0_svc+0x58/0x14c [ 77.030799][ T4999] el0_svc+0x78/0x1e0 [ 77.031486][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 77.032313][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 77.034320][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.036107][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.037208][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.038801][ T4999] Call trace: [ 77.039327][ T4999] dump_backtrace+0x0/0x43c [ 77.040069][ T4999] show_stack+0x2c/0x3c [ 77.040769][ T4999] __dump_stack+0x30/0x40 [ 77.041487][ T4999] dump_stack_lvl+0xf8/0x160 [ 77.042236][ T4999] dump_stack+0x1c/0x5c [ 77.042923][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.043825][ T4999] dccp_xmit_packet+0x298/0x448 [ 77.044622][ T4999] dccp_write_xmit+0x118/0x1d0 [ 77.045344][ T4999] dccp_sendmsg+0x538/0x8a8 [ 77.046096][ T4999] inet_sendmsg+0x154/0x284 [ 77.046838][ T4999] __sys_sendto+0x2e8/0x3d8 [ 77.047572][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 77.048360][ T4999] invoke_syscall+0x98/0x2b8 [ 77.049130][ T4999] el0_svc_common+0x138/0x258 [ 77.049915][ T4999] do_el0_svc+0x58/0x14c [ 77.050605][ T4999] el0_svc+0x78/0x1e0 [ 77.051250][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 77.052058][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 77.053243][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.055026][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.056136][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.057803][ T4999] Call trace: [ 77.058358][ T4999] dump_backtrace+0x0/0x43c [ 77.059067][ T4999] show_stack+0x2c/0x3c [ 77.059740][ T4999] __dump_stack+0x30/0x40 [ 77.060487][ T4999] dump_stack_lvl+0xf8/0x160 [ 77.061167][ T4999] dump_stack+0x1c/0x5c [ 77.061822][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.062702][ T4999] dccp_xmit_packet+0x298/0x448 [ 77.063539][ T4999] dccp_write_xmit+0x118/0x1d0 [ 77.064351][ T4999] dccp_sendmsg+0x538/0x8a8 [ 77.065085][ T4999] inet_sendmsg+0x154/0x284 [ 77.065788][ T4999] __sys_sendto+0x2e8/0x3d8 [ 77.066533][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 77.067314][ T4999] invoke_syscall+0x98/0x2b8 [ 77.067972][ T4999] el0_svc_common+0x138/0x258 [ 77.068674][ T4999] do_el0_svc+0x58/0x14c [ 77.069275][ T4999] el0_svc+0x78/0x1e0 [ 77.069875][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 77.070637][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 77.071545][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.073279][ T4999] CPU: 0 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.074440][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.076051][ T4999] Call trace: [ 77.076555][ T4999] dump_backtrace+0x0/0x43c [ 77.077274][ T4999] show_stack+0x2c/0x3c [ 77.077952][ T4999] __dump_stack+0x30/0x40 [ 77.078637][ T4999] dump_stack_lvl+0xf8/0x160 [ 77.079367][ T4999] dump_stack+0x1c/0x5c [ 77.080052][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.080926][ T4999] dccp_xmit_packet+0x298/0x448 [ 77.081673][ T4999] dccp_write_xmit+0x118/0x1d0 [ 77.082426][ T4999] dccp_sendmsg+0x538/0x8a8 [ 77.083171][ T4999] inet_sendmsg+0x154/0x284 [ 77.083924][ T4999] __sys_sendto+0x2e8/0x3d8 [ 77.084688][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 77.085507][ T4999] invoke_syscall+0x98/0x2b8 [ 77.086313][ T4999] el0_svc_common+0x138/0x258 [ 77.087083][ T4999] do_el0_svc+0x58/0x14c [ 77.087811][ T4999] el0_svc+0x78/0x1e0 [ 77.088431][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 77.089234][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 77.092498][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.094195][ T4999] CPU: 1 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.095229][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.096766][ T4999] Call trace: [ 77.097244][ T4999] dump_backtrace+0x0/0x43c [ 77.097946][ T4999] show_stack+0x2c/0x3c [ 77.098617][ T4999] __dump_stack+0x30/0x40 [ 77.099221][ T4999] dump_stack_lvl+0xf8/0x160 [ 77.099909][ T4999] dump_stack+0x1c/0x5c [ 77.100492][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.101345][ T4999] dccp_xmit_packet+0x298/0x448 [ 77.102169][ T4999] dccp_write_xmit+0x118/0x1d0 [ 77.102988][ T4999] dccp_sendmsg+0x538/0x8a8 [ 77.103734][ T4999] inet_sendmsg+0x154/0x284 [ 77.104463][ T4999] __sys_sendto+0x2e8/0x3d8 [ 77.105241][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 77.106043][ T4999] invoke_syscall+0x98/0x2b8 [ 77.106720][ T4999] el0_svc_common+0x138/0x258 [ 77.107468][ T4999] do_el0_svc+0x58/0x14c [ 77.108161][ T4999] el0_svc+0x78/0x1e0 [ 77.108802][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 77.109647][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 77.111677][ T4999] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.113361][ T4999] CPU: 1 PID: 4999 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.114426][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.115876][ T4999] Call trace: [ 77.116322][ T4999] dump_backtrace+0x0/0x43c [ 77.116970][ T4999] show_stack+0x2c/0x3c [ 77.117541][ T4999] __dump_stack+0x30/0x40 [ 77.118156][ T4999] dump_stack_lvl+0xf8/0x160 [ 77.118803][ T4999] dump_stack+0x1c/0x5c [ 77.119413][ T4999] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.120240][ T4999] dccp_xmit_packet+0x298/0x448 [ 77.120975][ T4999] dccp_write_xmit+0x118/0x1d0 [ 77.121671][ T4999] dccp_sendmsg+0x538/0x8a8 [ 77.122357][ T4999] inet_sendmsg+0x154/0x284 [ 77.123034][ T4999] __sys_sendto+0x2e8/0x3d8 [ 77.123764][ T4999] __arm64_sys_sendto+0xd8/0xf8 [ 77.124540][ T4999] invoke_syscall+0x98/0x2b8 [ 77.125229][ T4999] el0_svc_common+0x138/0x258 [ 77.125981][ T4999] do_el0_svc+0x58/0x14c [ 77.126633][ T4999] el0_svc+0x78/0x1e0 [ 77.127210][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 77.128079][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 77.140107][ T5001] dccp_xmit_packet: Payload too large (65475) for featneg. [ 77.147470][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.149170][ T5001] CPU: 0 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.150289][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.151687][ T5001] Call trace: [ 77.152188][ T5001] dump_backtrace+0x0/0x43c [ 77.152944][ T5001] show_stack+0x2c/0x3c [ 77.153618][ T5001] __dump_stack+0x30/0x40 [ 77.154236][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.154917][ T5001] dump_stack+0x1c/0x5c [ 77.155519][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.156359][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.157109][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.157926][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.158712][ T5001] inet_sendmsg+0x154/0x284 [ 77.159402][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.160145][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.160978][ T5001] invoke_syscall+0x98/0x2b8 [ 77.161738][ T5001] el0_svc_common+0x138/0x258 [ 77.162513][ T5001] do_el0_svc+0x58/0x14c [ 77.163153][ T5001] el0_svc+0x78/0x1e0 [ 77.163740][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.164469][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.166305][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.168075][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.169211][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.170758][ T5001] Call trace: [ 77.171242][ T5001] dump_backtrace+0x0/0x43c [ 77.171879][ T5001] show_stack+0x2c/0x3c [ 77.172498][ T5001] __dump_stack+0x30/0x40 [ 77.173124][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.173849][ T5001] dump_stack+0x1c/0x5c [ 77.174497][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.175330][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.176091][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.176817][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.177488][ T5001] inet_sendmsg+0x154/0x284 [ 77.178153][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.178786][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.179531][ T5001] invoke_syscall+0x98/0x2b8 [ 77.180216][ T5001] el0_svc_common+0x138/0x258 [ 77.180955][ T5001] do_el0_svc+0x58/0x14c [ 77.181630][ T5001] el0_svc+0x78/0x1e0 [ 77.182203][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.182996][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.184848][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.186524][ T5001] CPU: 0 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.187534][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.188989][ T5001] Call trace: [ 77.189514][ T5001] dump_backtrace+0x0/0x43c [ 77.190156][ T5001] show_stack+0x2c/0x3c [ 77.190795][ T5001] __dump_stack+0x30/0x40 [ 77.191428][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.192139][ T5001] dump_stack+0x1c/0x5c [ 77.192832][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.193707][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.194474][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.195210][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.195875][ T5001] inet_sendmsg+0x154/0x284 [ 77.196510][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.197195][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.198009][ T5001] invoke_syscall+0x98/0x2b8 [ 77.198752][ T5001] el0_svc_common+0x138/0x258 [ 77.199423][ T5001] do_el0_svc+0x58/0x14c [ 77.200045][ T5001] el0_svc+0x78/0x1e0 [ 77.200681][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.201524][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.202967][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.204788][ T5001] CPU: 0 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.205984][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.207562][ T5001] Call trace: [ 77.208073][ T5001] dump_backtrace+0x0/0x43c [ 77.208794][ T5001] show_stack+0x2c/0x3c [ 77.209487][ T5001] __dump_stack+0x30/0x40 [ 77.210143][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.210847][ T5001] dump_stack+0x1c/0x5c [ 77.211489][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.212388][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.213188][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.213937][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.214647][ T5001] inet_sendmsg+0x154/0x284 [ 77.215380][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.216158][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.216963][ T5001] invoke_syscall+0x98/0x2b8 [ 77.217702][ T5001] el0_svc_common+0x138/0x258 [ 77.218429][ T5001] do_el0_svc+0x58/0x14c [ 77.219150][ T5001] el0_svc+0x78/0x1e0 [ 77.219771][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.220614][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.222244][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.223980][ T5001] CPU: 0 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.225141][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.226724][ T5001] Call trace: [ 77.227209][ T5001] dump_backtrace+0x0/0x43c [ 77.227872][ T5001] show_stack+0x2c/0x3c [ 77.228496][ T5001] __dump_stack+0x30/0x40 [ 77.229167][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.229916][ T5001] dump_stack+0x1c/0x5c [ 77.230607][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.231513][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.232278][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.233011][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.233692][ T5001] inet_sendmsg+0x154/0x284 [ 77.234362][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.235040][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.235751][ T5001] invoke_syscall+0x98/0x2b8 [ 77.236415][ T5001] el0_svc_common+0x138/0x258 [ 77.237177][ T5001] do_el0_svc+0x58/0x14c [ 77.237827][ T5001] el0_svc+0x78/0x1e0 [ 77.238479][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.239329][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.241338][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.243527][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.244685][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.246235][ T5001] Call trace: [ 77.246745][ T5001] dump_backtrace+0x0/0x43c [ 77.247472][ T5001] show_stack+0x2c/0x3c [ 77.248114][ T5001] __dump_stack+0x30/0x40 [ 77.248758][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.249430][ T5001] dump_stack+0x1c/0x5c [ 77.250060][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.250843][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.251667][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.252457][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.253208][ T5001] inet_sendmsg+0x154/0x284 [ 77.253960][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.254592][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.255352][ T5001] invoke_syscall+0x98/0x2b8 [ 77.255992][ T5001] el0_svc_common+0x138/0x258 [ 77.256700][ T5001] do_el0_svc+0x58/0x14c [ 77.257304][ T5001] el0_svc+0x78/0x1e0 [ 77.257873][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.258600][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.260496][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.262135][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.263207][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.264777][ T5001] Call trace: [ 77.265279][ T5001] dump_backtrace+0x0/0x43c [ 77.265920][ T5001] show_stack+0x2c/0x3c [ 77.266589][ T5001] __dump_stack+0x30/0x40 [ 77.267288][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.267958][ T5001] dump_stack+0x1c/0x5c [ 77.268597][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.269450][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.270130][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.270797][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.271418][ T5001] inet_sendmsg+0x154/0x284 [ 77.272074][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.272786][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.273543][ T5001] invoke_syscall+0x98/0x2b8 [ 77.274306][ T5001] el0_svc_common+0x138/0x258 [ 77.275053][ T5001] do_el0_svc+0x58/0x14c [ 77.275753][ T5001] el0_svc+0x78/0x1e0 [ 77.276442][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.277213][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.278148][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.279695][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.280664][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.282098][ T5001] Call trace: [ 77.282544][ T5001] dump_backtrace+0x0/0x43c [ 77.283200][ T5001] show_stack+0x2c/0x3c [ 77.283762][ T5001] __dump_stack+0x30/0x40 [ 77.284444][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.285125][ T5001] dump_stack+0x1c/0x5c [ 77.285741][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.286567][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.287255][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.287951][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.288647][ T5001] inet_sendmsg+0x154/0x284 [ 77.289291][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.290008][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.290805][ T5001] invoke_syscall+0x98/0x2b8 [ 77.291570][ T5001] el0_svc_common+0x138/0x258 [ 77.292274][ T5001] do_el0_svc+0x58/0x14c [ 77.292944][ T5001] el0_svc+0x78/0x1e0 [ 77.293585][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.294329][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.295451][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.297206][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.298325][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.299959][ T5001] Call trace: [ 77.300484][ T5001] dump_backtrace+0x0/0x43c [ 77.301146][ T5001] show_stack+0x2c/0x3c [ 77.301814][ T5001] __dump_stack+0x30/0x40 [ 77.302473][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.303196][ T5001] dump_stack+0x1c/0x5c [ 77.303889][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.304789][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.305607][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.306401][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.307189][ T5001] inet_sendmsg+0x154/0x284 [ 77.307963][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.308649][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.309455][ T5001] invoke_syscall+0x98/0x2b8 [ 77.310120][ T5001] el0_svc_common+0x138/0x258 [ 77.310837][ T5001] do_el0_svc+0x58/0x14c [ 77.311452][ T5001] el0_svc+0x78/0x1e0 [ 77.312083][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.312867][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.313972][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.315633][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.316656][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.318311][ T5001] Call trace: [ 77.318807][ T5001] dump_backtrace+0x0/0x43c [ 77.319477][ T5001] show_stack+0x2c/0x3c [ 77.320091][ T5001] __dump_stack+0x30/0x40 [ 77.320736][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.321456][ T5001] dump_stack+0x1c/0x5c [ 77.322116][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.322938][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.323680][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.324381][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.325041][ T5001] inet_sendmsg+0x154/0x284 [ 77.325779][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.326465][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.327214][ T5001] invoke_syscall+0x98/0x2b8 [ 77.327913][ T5001] el0_svc_common+0x138/0x258 [ 77.328594][ T5001] do_el0_svc+0x58/0x14c [ 77.329251][ T5001] el0_svc+0x78/0x1e0 [ 77.329860][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.330689][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.331549][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.333231][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.334324][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.335841][ T5001] Call trace: [ 77.336298][ T5001] dump_backtrace+0x0/0x43c [ 77.337001][ T5001] show_stack+0x2c/0x3c [ 77.337571][ T5001] __dump_stack+0x30/0x40 [ 77.338285][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.339026][ T5001] dump_stack+0x1c/0x5c [ 77.339688][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.340578][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.341334][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.342050][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.342751][ T5001] inet_sendmsg+0x154/0x284 [ 77.343453][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.344149][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.344913][ T5001] invoke_syscall+0x98/0x2b8 [ 77.345606][ T5001] el0_svc_common+0x138/0x258 [ 77.346327][ T5001] do_el0_svc+0x58/0x14c [ 77.346936][ T5001] el0_svc+0x78/0x1e0 [ 77.347508][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.348273][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.349155][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.350883][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.351892][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.353378][ T5001] Call trace: [ 77.353816][ T5001] dump_backtrace+0x0/0x43c [ 77.354463][ T5001] show_stack+0x2c/0x3c [ 77.355135][ T5001] __dump_stack+0x30/0x40 [ 77.355885][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.356624][ T5001] dump_stack+0x1c/0x5c [ 77.357299][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.358158][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.358901][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.359658][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.360331][ T5001] inet_sendmsg+0x154/0x284 [ 77.360983][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.361635][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.362380][ T5001] invoke_syscall+0x98/0x2b8 [ 77.362993][ T5001] el0_svc_common+0x138/0x258 [ 77.363706][ T5001] do_el0_svc+0x58/0x14c [ 77.364370][ T5001] el0_svc+0x78/0x1e0 [ 77.364970][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.365734][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.366778][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.368424][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.369499][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.371140][ T5001] Call trace: [ 77.371661][ T5001] dump_backtrace+0x0/0x43c [ 77.372386][ T5001] show_stack+0x2c/0x3c [ 77.373037][ T5001] __dump_stack+0x30/0x40 [ 77.373779][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.374546][ T5001] dump_stack+0x1c/0x5c [ 77.375184][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.376039][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.376816][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.377569][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.378200][ T5001] inet_sendmsg+0x154/0x284 [ 77.378846][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.379555][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.380331][ T5001] invoke_syscall+0x98/0x2b8 [ 77.381141][ T5001] el0_svc_common+0x138/0x258 [ 77.381903][ T5001] do_el0_svc+0x58/0x14c [ 77.382570][ T5001] el0_svc+0x78/0x1e0 [ 77.383203][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.383931][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.384929][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.386575][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.387619][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.389035][ T5001] Call trace: [ 77.389464][ T5001] dump_backtrace+0x0/0x43c [ 77.390116][ T5001] show_stack+0x2c/0x3c [ 77.390699][ T5001] __dump_stack+0x30/0x40 [ 77.391258][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.391873][ T5001] dump_stack+0x1c/0x5c [ 77.392522][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.393362][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.394069][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.394795][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.395439][ T5001] inet_sendmsg+0x154/0x284 [ 77.396069][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.396710][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.397465][ T5001] invoke_syscall+0x98/0x2b8 [ 77.398152][ T5001] el0_svc_common+0x138/0x258 [ 77.398906][ T5001] do_el0_svc+0x58/0x14c [ 77.399583][ T5001] el0_svc+0x78/0x1e0 [ 77.400272][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.401082][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.401978][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.403713][ T5001] CPU: 0 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.404880][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.406586][ T5001] Call trace: [ 77.407123][ T5001] dump_backtrace+0x0/0x43c [ 77.407889][ T5001] show_stack+0x2c/0x3c [ 77.408579][ T5001] __dump_stack+0x30/0x40 [ 77.409340][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.410101][ T5001] dump_stack+0x1c/0x5c [ 77.410804][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.411718][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.412509][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.413254][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.413936][ T5001] inet_sendmsg+0x154/0x284 [ 77.414612][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.415285][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.416032][ T5001] invoke_syscall+0x98/0x2b8 [ 77.416771][ T5001] el0_svc_common+0x138/0x258 [ 77.417480][ T5001] do_el0_svc+0x58/0x14c [ 77.418167][ T5001] el0_svc+0x78/0x1e0 [ 77.418824][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.419548][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.421658][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.423515][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.424623][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.426059][ T5001] Call trace: [ 77.426555][ T5001] dump_backtrace+0x0/0x43c [ 77.427211][ T5001] show_stack+0x2c/0x3c [ 77.427771][ T5001] __dump_stack+0x30/0x40 [ 77.428379][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.429114][ T5001] dump_stack+0x1c/0x5c [ 77.429820][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.430706][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.431554][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.432332][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.433010][ T5001] inet_sendmsg+0x154/0x284 [ 77.433714][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.434394][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.435175][ T5001] invoke_syscall+0x98/0x2b8 [ 77.435891][ T5001] el0_svc_common+0x138/0x258 [ 77.436673][ T5001] do_el0_svc+0x58/0x14c [ 77.437373][ T5001] el0_svc+0x78/0x1e0 [ 77.438032][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.438796][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.439717][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.441398][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.442529][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.444069][ T5001] Call trace: [ 77.444557][ T5001] dump_backtrace+0x0/0x43c [ 77.445245][ T5001] show_stack+0x2c/0x3c [ 77.445883][ T5001] __dump_stack+0x30/0x40 [ 77.446567][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.447340][ T5001] dump_stack+0x1c/0x5c [ 77.447975][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.448920][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.449722][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.450493][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.451225][ T5001] inet_sendmsg+0x154/0x284 [ 77.451970][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.452727][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.453459][ T5001] invoke_syscall+0x98/0x2b8 [ 77.454143][ T5001] el0_svc_common+0x138/0x258 [ 77.454848][ T5001] do_el0_svc+0x58/0x14c [ 77.455470][ T5001] el0_svc+0x78/0x1e0 [ 77.456061][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.456844][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.457900][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.459569][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.460655][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.462257][ T5001] Call trace: [ 77.462771][ T5001] dump_backtrace+0x0/0x43c [ 77.463499][ T5001] show_stack+0x2c/0x3c [ 77.464201][ T5001] __dump_stack+0x30/0x40 [ 77.464909][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.465635][ T5001] dump_stack+0x1c/0x5c [ 77.466324][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.467282][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.468076][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.468876][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.469583][ T5001] inet_sendmsg+0x154/0x284 [ 77.470244][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.470969][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.471744][ T5001] invoke_syscall+0x98/0x2b8 [ 77.472484][ T5001] el0_svc_common+0x138/0x258 [ 77.473175][ T5001] do_el0_svc+0x58/0x14c [ 77.473885][ T5001] el0_svc+0x78/0x1e0 [ 77.474551][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.475315][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.476301][ T5001] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.477909][ T5001] CPU: 1 PID: 5001 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.478953][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.480606][ T5001] Call trace: [ 77.481144][ T5001] dump_backtrace+0x0/0x43c [ 77.481867][ T5001] show_stack+0x2c/0x3c [ 77.482489][ T5001] __dump_stack+0x30/0x40 [ 77.483218][ T5001] dump_stack_lvl+0xf8/0x160 [ 77.483934][ T5001] dump_stack+0x1c/0x5c [ 77.484599][ T5001] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.485527][ T5001] dccp_xmit_packet+0x298/0x448 [ 77.486286][ T5001] dccp_write_xmit+0x118/0x1d0 [ 77.487025][ T5001] dccp_sendmsg+0x538/0x8a8 [ 77.487770][ T5001] inet_sendmsg+0x154/0x284 [ 77.488495][ T5001] __sys_sendto+0x2e8/0x3d8 [ 77.489200][ T5001] __arm64_sys_sendto+0xd8/0xf8 [ 77.489936][ T5001] invoke_syscall+0x98/0x2b8 [ 77.490624][ T5001] el0_svc_common+0x138/0x258 [ 77.491346][ T5001] do_el0_svc+0x58/0x14c [ 77.491940][ T5001] el0_svc+0x78/0x1e0 [ 77.492603][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 77.493425][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 77.504072][ T5003] dccp_xmit_packet: Payload too large (65475) for featneg. [ 77.507074][ T136] device hsr_slave_0 left promiscuous mode [ 77.511156][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.513204][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.514268][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.515721][ T5003] Call trace: [ 77.516151][ T5003] dump_backtrace+0x0/0x43c [ 77.516783][ T5003] show_stack+0x2c/0x3c [ 77.517384][ T5003] __dump_stack+0x30/0x40 [ 77.518050][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.518712][ T5003] dump_stack+0x1c/0x5c [ 77.519333][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.520159][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.520934][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.521714][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.522383][ T5003] inet_sendmsg+0x154/0x284 [ 77.523086][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.523731][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.524542][ T5003] invoke_syscall+0x98/0x2b8 [ 77.525271][ T5003] el0_svc_common+0x138/0x258 [ 77.525980][ T5003] do_el0_svc+0x58/0x14c [ 77.526579][ T5003] el0_svc+0x78/0x1e0 [ 77.527180][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.528027][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.529648][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.531345][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.532407][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.533965][ T5003] Call trace: [ 77.534458][ T5003] dump_backtrace+0x0/0x43c [ 77.535102][ T5003] show_stack+0x2c/0x3c [ 77.535779][ T5003] __dump_stack+0x30/0x40 [ 77.536500][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.537260][ T5003] dump_stack+0x1c/0x5c [ 77.537919][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.538717][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.539454][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.540172][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.540780][ T5003] inet_sendmsg+0x154/0x284 [ 77.541440][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.542145][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.542906][ T5003] invoke_syscall+0x98/0x2b8 [ 77.543624][ T5003] el0_svc_common+0x138/0x258 [ 77.544361][ T5003] do_el0_svc+0x58/0x14c [ 77.545031][ T5003] el0_svc+0x78/0x1e0 [ 77.545641][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.546367][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.547869][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.549575][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.550596][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.552127][ T5003] Call trace: [ 77.552650][ T5003] dump_backtrace+0x0/0x43c [ 77.553339][ T5003] show_stack+0x2c/0x3c [ 77.553966][ T5003] __dump_stack+0x30/0x40 [ 77.554663][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.555393][ T5003] dump_stack+0x1c/0x5c [ 77.556019][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.556835][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.557517][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.558291][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.558949][ T5003] inet_sendmsg+0x154/0x284 [ 77.559627][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.560292][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.560950][ T5003] invoke_syscall+0x98/0x2b8 [ 77.561661][ T5003] el0_svc_common+0x138/0x258 [ 77.562381][ T5003] do_el0_svc+0x58/0x14c [ 77.563071][ T5003] el0_svc+0x78/0x1e0 [ 77.563726][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.564510][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.565536][ T136] device hsr_slave_1 left promiscuous mode [ 77.565857][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.568127][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.569120][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.570693][ T5003] Call trace: [ 77.571210][ T5003] dump_backtrace+0x0/0x43c [ 77.571957][ T5003] show_stack+0x2c/0x3c [ 77.572671][ T5003] __dump_stack+0x30/0x40 [ 77.573408][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.574142][ T5003] dump_stack+0x1c/0x5c [ 77.574801][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.575740][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.576484][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.577255][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.577941][ T5003] inet_sendmsg+0x154/0x284 [ 77.578625][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.579403][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.580178][ T5003] invoke_syscall+0x98/0x2b8 [ 77.580948][ T5003] el0_svc_common+0x138/0x258 [ 77.581687][ T5003] do_el0_svc+0x58/0x14c [ 77.582404][ T5003] el0_svc+0x78/0x1e0 [ 77.583038][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.583840][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.584752][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.586503][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.587570][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.589146][ T5003] Call trace: [ 77.589671][ T5003] dump_backtrace+0x0/0x43c [ 77.590426][ T5003] show_stack+0x2c/0x3c [ 77.591101][ T5003] __dump_stack+0x30/0x40 [ 77.591736][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.592526][ T5003] dump_stack+0x1c/0x5c [ 77.593229][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.594112][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.594889][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.595639][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.596374][ T5003] inet_sendmsg+0x154/0x284 [ 77.597090][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.597738][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.598504][ T5003] invoke_syscall+0x98/0x2b8 [ 77.599234][ T5003] el0_svc_common+0x138/0x258 [ 77.599947][ T5003] do_el0_svc+0x58/0x14c [ 77.600639][ T5003] el0_svc+0x78/0x1e0 [ 77.601288][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.602110][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.603084][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.604816][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.605957][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.607524][ T5003] Call trace: [ 77.608086][ T5003] dump_backtrace+0x0/0x43c [ 77.608827][ T5003] show_stack+0x2c/0x3c [ 77.609487][ T5003] __dump_stack+0x30/0x40 [ 77.610217][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.610932][ T5003] dump_stack+0x1c/0x5c [ 77.611566][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.612375][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.613120][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.613865][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.614507][ T5003] inet_sendmsg+0x154/0x284 [ 77.615149][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.615866][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.616621][ T5003] invoke_syscall+0x98/0x2b8 [ 77.617334][ T5003] el0_svc_common+0x138/0x258 [ 77.618090][ T5003] do_el0_svc+0x58/0x14c [ 77.618728][ T5003] el0_svc+0x78/0x1e0 [ 77.619315][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.620088][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.621134][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.623042][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.624159][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.625511][ T5003] Call trace: [ 77.625988][ T5003] dump_backtrace+0x0/0x43c [ 77.626649][ T5003] show_stack+0x2c/0x3c [ 77.627236][ T5003] __dump_stack+0x30/0x40 [ 77.627831][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.628444][ T5003] dump_stack+0x1c/0x5c [ 77.629040][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.629845][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.630656][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.631394][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.632040][ T5003] inet_sendmsg+0x154/0x284 [ 77.632721][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.633400][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.634106][ T5003] invoke_syscall+0x98/0x2b8 [ 77.634768][ T5003] el0_svc_common+0x138/0x258 [ 77.635462][ T5003] do_el0_svc+0x58/0x14c [ 77.636137][ T5003] el0_svc+0x78/0x1e0 [ 77.636749][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.637459][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.638307][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.639930][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.640967][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.642325][ T5003] Call trace: [ 77.642844][ T5003] dump_backtrace+0x0/0x43c [ 77.643525][ T5003] show_stack+0x2c/0x3c [ 77.644160][ T5003] __dump_stack+0x30/0x40 [ 77.644827][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.645551][ T5003] dump_stack+0x1c/0x5c [ 77.646216][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.647059][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.647843][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.648575][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.649311][ T5003] inet_sendmsg+0x154/0x284 [ 77.650006][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.650757][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.651507][ T5003] invoke_syscall+0x98/0x2b8 [ 77.652210][ T5003] el0_svc_common+0x138/0x258 [ 77.652914][ T5003] do_el0_svc+0x58/0x14c [ 77.653530][ T5003] el0_svc+0x78/0x1e0 [ 77.654113][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.654848][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.655756][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.657475][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.658601][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.660157][ T5003] Call trace: [ 77.660640][ T5003] dump_backtrace+0x0/0x43c [ 77.661276][ T5003] show_stack+0x2c/0x3c [ 77.661846][ T5003] __dump_stack+0x30/0x40 [ 77.662462][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.663150][ T5003] dump_stack+0x1c/0x5c [ 77.663740][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.664642][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.665409][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.666142][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.666865][ T5003] inet_sendmsg+0x154/0x284 [ 77.667603][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.668281][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.669124][ T5003] invoke_syscall+0x98/0x2b8 [ 77.669867][ T5003] el0_svc_common+0x138/0x258 [ 77.670697][ T5003] do_el0_svc+0x58/0x14c [ 77.671379][ T5003] el0_svc+0x78/0x1e0 [ 77.671992][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.672749][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.673659][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.675203][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.676217][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.677633][ T5003] Call trace: [ 77.678144][ T5003] dump_backtrace+0x0/0x43c [ 77.678801][ T5003] show_stack+0x2c/0x3c [ 77.679377][ T5003] __dump_stack+0x30/0x40 [ 77.680010][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.680666][ T5003] dump_stack+0x1c/0x5c [ 77.681237][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.682017][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.682041][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 77.682820][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.684011][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 77.684742][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.686464][ T5003] inet_sendmsg+0x154/0x284 [ 77.687154][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.687899][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.688702][ T5003] invoke_syscall+0x98/0x2b8 [ 77.689444][ T5003] el0_svc_common+0x138/0x258 [ 77.690259][ T5003] do_el0_svc+0x58/0x14c [ 77.690919][ T5003] el0_svc+0x78/0x1e0 [ 77.691573][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.692364][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.693328][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.694956][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.696004][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.697500][ T5003] Call trace: [ 77.697968][ T5003] dump_backtrace+0x0/0x43c [ 77.698462][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 77.698700][ T5003] show_stack+0x2c/0x3c [ 77.699784][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 77.700333][ T5003] __dump_stack+0x30/0x40 [ 77.702003][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.702691][ T5003] dump_stack+0x1c/0x5c [ 77.703342][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.704220][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.704955][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.705778][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.706459][ T5003] inet_sendmsg+0x154/0x284 [ 77.707180][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.707910][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.708745][ T5003] invoke_syscall+0x98/0x2b8 [ 77.709480][ T5003] el0_svc_common+0x138/0x258 [ 77.710237][ T5003] do_el0_svc+0x58/0x14c [ 77.710951][ T5003] el0_svc+0x78/0x1e0 [ 77.711595][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.712387][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.713268][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.714869][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.715071][ T136] device bridge_slave_1 left promiscuous mode [ 77.715923][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.715935][ T5003] Call trace: [ 77.716890][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.718235][ T5003] dump_backtrace+0x0/0x43c [ 77.720272][ T5003] show_stack+0x2c/0x3c [ 77.720868][ T5003] __dump_stack+0x30/0x40 [ 77.721537][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.722191][ T5003] dump_stack+0x1c/0x5c [ 77.722837][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.723632][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.724412][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.725169][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.725925][ T5003] inet_sendmsg+0x154/0x284 [ 77.726667][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.727393][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.728156][ T5003] invoke_syscall+0x98/0x2b8 [ 77.728859][ T5003] el0_svc_common+0x138/0x258 [ 77.729592][ T5003] do_el0_svc+0x58/0x14c [ 77.730244][ T5003] el0_svc+0x78/0x1e0 [ 77.730812][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.731524][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.732536][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.734295][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.735350][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.736882][ T5003] Call trace: [ 77.737359][ T5003] dump_backtrace+0x0/0x43c [ 77.738034][ T5003] show_stack+0x2c/0x3c [ 77.738679][ T5003] __dump_stack+0x30/0x40 [ 77.739416][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.740140][ T5003] dump_stack+0x1c/0x5c [ 77.740837][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.741744][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.742550][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.743360][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.744081][ T5003] inet_sendmsg+0x154/0x284 [ 77.744721][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.745428][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.746222][ T5003] invoke_syscall+0x98/0x2b8 [ 77.746943][ T5003] el0_svc_common+0x138/0x258 [ 77.747630][ T5003] do_el0_svc+0x58/0x14c [ 77.748264][ T5003] el0_svc+0x78/0x1e0 [ 77.748886][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.749702][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.750531][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.752437][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.753491][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.755037][ T5003] Call trace: [ 77.755518][ T5003] dump_backtrace+0x0/0x43c [ 77.756196][ T5003] show_stack+0x2c/0x3c [ 77.756816][ T5003] __dump_stack+0x30/0x40 [ 77.757513][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.758262][ T5003] dump_stack+0x1c/0x5c [ 77.758948][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.759762][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.760471][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.761128][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.761934][ T5003] inet_sendmsg+0x154/0x284 [ 77.762641][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.763364][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.764128][ T5003] invoke_syscall+0x98/0x2b8 [ 77.764822][ T5003] el0_svc_common+0x138/0x258 [ 77.765542][ T5003] do_el0_svc+0x58/0x14c [ 77.766216][ T5003] el0_svc+0x78/0x1e0 [ 77.766830][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.767614][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.768515][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.770192][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.771355][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.772931][ T5003] Call trace: [ 77.773406][ T5003] dump_backtrace+0x0/0x43c [ 77.774092][ T5003] show_stack+0x2c/0x3c [ 77.774701][ T5003] __dump_stack+0x30/0x40 [ 77.775429][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.776190][ T5003] dump_stack+0x1c/0x5c [ 77.776902][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.777791][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.778515][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.779227][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.779937][ T5003] inet_sendmsg+0x154/0x284 [ 77.780707][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.781442][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.782195][ T5003] invoke_syscall+0x98/0x2b8 [ 77.782927][ T5003] el0_svc_common+0x138/0x258 [ 77.783603][ T5003] do_el0_svc+0x58/0x14c [ 77.784230][ T5003] el0_svc+0x78/0x1e0 [ 77.784886][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.785650][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.786602][ T5003] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.787604][ T136] device bridge_slave_0 left promiscuous mode [ 77.788173][ T5003] CPU: 1 PID: 5003 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.789224][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.790238][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.792990][ T5003] Call trace: [ 77.793487][ T5003] dump_backtrace+0x0/0x43c [ 77.794151][ T5003] show_stack+0x2c/0x3c [ 77.794772][ T5003] __dump_stack+0x30/0x40 [ 77.795402][ T5003] dump_stack_lvl+0xf8/0x160 [ 77.796077][ T5003] dump_stack+0x1c/0x5c [ 77.796755][ T5003] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.797554][ T5003] dccp_xmit_packet+0x298/0x448 [ 77.798337][ T5003] dccp_write_xmit+0x118/0x1d0 [ 77.799099][ T5003] dccp_sendmsg+0x538/0x8a8 [ 77.799782][ T5003] inet_sendmsg+0x154/0x284 [ 77.800547][ T5003] __sys_sendto+0x2e8/0x3d8 [ 77.801218][ T5003] __arm64_sys_sendto+0xd8/0xf8 [ 77.801958][ T5003] invoke_syscall+0x98/0x2b8 [ 77.802649][ T5003] el0_svc_common+0x138/0x258 [ 77.803415][ T5003] do_el0_svc+0x58/0x14c [ 77.804085][ T5003] el0_svc+0x78/0x1e0 [ 77.804725][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 77.805474][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 77.818088][ T5005] dccp_xmit_packet: Payload too large (65475) for featneg. [ 77.825284][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.827044][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.828058][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.829535][ T5005] Call trace: [ 77.830011][ T5005] dump_backtrace+0x0/0x43c [ 77.830684][ T5005] show_stack+0x2c/0x3c [ 77.831308][ T5005] __dump_stack+0x30/0x40 [ 77.831943][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.832605][ T5005] dump_stack+0x1c/0x5c [ 77.833251][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.834017][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.834741][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.835464][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.836112][ T5005] inet_sendmsg+0x154/0x284 [ 77.836747][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.837377][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.838068][ T5005] invoke_syscall+0x98/0x2b8 [ 77.838728][ T5005] el0_svc_common+0x138/0x258 [ 77.839384][ T5005] do_el0_svc+0x58/0x14c [ 77.840105][ T5005] el0_svc+0x78/0x1e0 [ 77.840751][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.841562][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.842758][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.844404][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.845442][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.846854][ T5005] Call trace: [ 77.847301][ T5005] dump_backtrace+0x0/0x43c [ 77.847900][ T5005] show_stack+0x2c/0x3c [ 77.848462][ T5005] __dump_stack+0x30/0x40 [ 77.849062][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.849736][ T5005] dump_stack+0x1c/0x5c [ 77.850306][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.851070][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.851765][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.852435][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.853048][ T5005] inet_sendmsg+0x154/0x284 [ 77.853673][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.854308][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.855013][ T5005] invoke_syscall+0x98/0x2b8 [ 77.855664][ T5005] el0_svc_common+0x138/0x258 [ 77.856353][ T5005] do_el0_svc+0x58/0x14c [ 77.856997][ T5005] el0_svc+0x78/0x1e0 [ 77.857641][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.858432][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.859587][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.861238][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.862287][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.863683][ T5005] Call trace: [ 77.864187][ T5005] dump_backtrace+0x0/0x43c [ 77.864893][ T5005] show_stack+0x2c/0x3c [ 77.865527][ T5005] __dump_stack+0x30/0x40 [ 77.866263][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.867038][ T5005] dump_stack+0x1c/0x5c [ 77.867730][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.868521][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.869242][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.870046][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.870696][ T5005] inet_sendmsg+0x154/0x284 [ 77.871330][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.871997][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.872719][ T5005] invoke_syscall+0x98/0x2b8 [ 77.873409][ T5005] el0_svc_common+0x138/0x258 [ 77.874086][ T5005] do_el0_svc+0x58/0x14c [ 77.874739][ T5005] el0_svc+0x78/0x1e0 [ 77.875364][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.876180][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.877088][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.878784][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.879856][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.881266][ T5005] Call trace: [ 77.881727][ T5005] dump_backtrace+0x0/0x43c [ 77.882412][ T5005] show_stack+0x2c/0x3c [ 77.883032][ T5005] __dump_stack+0x30/0x40 [ 77.883766][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.884488][ T5005] dump_stack+0x1c/0x5c [ 77.885153][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.886055][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.886889][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.887635][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.888371][ T5005] inet_sendmsg+0x154/0x284 [ 77.889088][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.889780][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.890583][ T5005] invoke_syscall+0x98/0x2b8 [ 77.891222][ T5005] el0_svc_common+0x138/0x258 [ 77.891984][ T5005] do_el0_svc+0x58/0x14c [ 77.892599][ T5005] el0_svc+0x78/0x1e0 [ 77.893206][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.893995][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.894979][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.896621][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.897747][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.899225][ T5005] Call trace: [ 77.899765][ T5005] dump_backtrace+0x0/0x43c [ 77.900490][ T5005] show_stack+0x2c/0x3c [ 77.901136][ T5005] __dump_stack+0x30/0x40 [ 77.901809][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.902573][ T5005] dump_stack+0x1c/0x5c [ 77.903200][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.904123][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.904862][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.905639][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.906345][ T5005] inet_sendmsg+0x154/0x284 [ 77.907172][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.907997][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.908767][ T5005] invoke_syscall+0x98/0x2b8 [ 77.909532][ T5005] el0_svc_common+0x138/0x258 [ 77.910265][ T5005] do_el0_svc+0x58/0x14c [ 77.910939][ T5005] el0_svc+0x78/0x1e0 [ 77.911616][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.912436][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.913285][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.915079][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.916215][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.917880][ T5005] Call trace: [ 77.918442][ T5005] dump_backtrace+0x0/0x43c [ 77.919096][ T5005] show_stack+0x2c/0x3c [ 77.919734][ T5005] __dump_stack+0x30/0x40 [ 77.920373][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.921100][ T5005] dump_stack+0x1c/0x5c [ 77.921791][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.922771][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.923568][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.924322][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.925030][ T5005] inet_sendmsg+0x154/0x284 [ 77.925789][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.926467][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.927216][ T5005] invoke_syscall+0x98/0x2b8 [ 77.927979][ T5005] el0_svc_common+0x138/0x258 [ 77.928758][ T5005] do_el0_svc+0x58/0x14c [ 77.929474][ T5005] el0_svc+0x78/0x1e0 [ 77.930073][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.930854][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.931812][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.933593][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.934705][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.936285][ T5005] Call trace: [ 77.936784][ T5005] dump_backtrace+0x0/0x43c [ 77.937426][ T5005] show_stack+0x2c/0x3c [ 77.938163][ T5005] __dump_stack+0x30/0x40 [ 77.938859][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.939549][ T5005] dump_stack+0x1c/0x5c [ 77.940163][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.940870][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.941534][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.942196][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.942888][ T5005] inet_sendmsg+0x154/0x284 [ 77.943589][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.944208][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.945035][ T5005] invoke_syscall+0x98/0x2b8 [ 77.945662][ T5005] el0_svc_common+0x138/0x258 [ 77.946290][ T5005] do_el0_svc+0x58/0x14c [ 77.946950][ T5005] el0_svc+0x78/0x1e0 [ 77.947538][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.948308][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.949237][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.950911][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.951954][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.953156][ T136] device veth1_macvtap left promiscuous mode [ 77.953416][ T5005] Call trace: [ 77.954464][ T136] device veth0_macvtap left promiscuous mode [ 77.954867][ T5005] dump_backtrace+0x0/0x43c [ 77.955819][ T136] device veth1_vlan left promiscuous mode [ 77.956449][ T5005] show_stack+0x2c/0x3c [ 77.957372][ T136] device veth0_vlan left promiscuous mode [ 77.957937][ T5005] __dump_stack+0x30/0x40 [ 77.959360][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.960068][ T5005] dump_stack+0x1c/0x5c [ 77.960657][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.961447][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.962213][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.962998][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.963719][ T5005] inet_sendmsg+0x154/0x284 [ 77.964416][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.965122][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.965840][ T5005] invoke_syscall+0x98/0x2b8 [ 77.966566][ T5005] el0_svc_common+0x138/0x258 [ 77.967313][ T5005] do_el0_svc+0x58/0x14c [ 77.967985][ T5005] el0_svc+0x78/0x1e0 [ 77.968606][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.969290][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.970201][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.971834][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.972966][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.974547][ T5005] Call trace: [ 77.975075][ T5005] dump_backtrace+0x0/0x43c [ 77.975793][ T5005] show_stack+0x2c/0x3c [ 77.976438][ T5005] __dump_stack+0x30/0x40 [ 77.977152][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.977894][ T5005] dump_stack+0x1c/0x5c [ 77.978558][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.979384][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.980087][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.980784][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.981463][ T5005] inet_sendmsg+0x154/0x284 [ 77.982095][ T5005] __sys_sendto+0x2e8/0x3d8 [ 77.982827][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 77.983662][ T5005] invoke_syscall+0x98/0x2b8 [ 77.984361][ T5005] el0_svc_common+0x138/0x258 [ 77.985060][ T5005] do_el0_svc+0x58/0x14c [ 77.985709][ T5005] el0_svc+0x78/0x1e0 [ 77.986304][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 77.987089][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 77.987925][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.989514][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.990539][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.992135][ T5005] Call trace: [ 77.992670][ T5005] dump_backtrace+0x0/0x43c [ 77.993348][ T5005] show_stack+0x2c/0x3c [ 77.994039][ T5005] __dump_stack+0x30/0x40 [ 77.994724][ T5005] dump_stack_lvl+0xf8/0x160 [ 77.995455][ T5005] dump_stack+0x1c/0x5c [ 77.996127][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.996964][ T5005] dccp_xmit_packet+0x298/0x448 [ 77.997735][ T5005] dccp_write_xmit+0x118/0x1d0 [ 77.998529][ T5005] dccp_sendmsg+0x538/0x8a8 [ 77.999248][ T5005] inet_sendmsg+0x154/0x284 [ 77.999980][ T5005] __sys_sendto+0x2e8/0x3d8 [ 78.000756][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 78.001585][ T5005] invoke_syscall+0x98/0x2b8 [ 78.002328][ T5005] el0_svc_common+0x138/0x258 [ 78.003110][ T5005] do_el0_svc+0x58/0x14c [ 78.003841][ T5005] el0_svc+0x78/0x1e0 [ 78.004463][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 78.005237][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 78.006538][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.008309][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 78.009439][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.011100][ T5005] Call trace: [ 78.011582][ T5005] dump_backtrace+0x0/0x43c [ 78.012285][ T5005] show_stack+0x2c/0x3c [ 78.012935][ T5005] __dump_stack+0x30/0x40 [ 78.013681][ T5005] dump_stack_lvl+0xf8/0x160 [ 78.014391][ T5005] dump_stack+0x1c/0x5c [ 78.015038][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.015768][ T5005] dccp_xmit_packet+0x298/0x448 [ 78.016473][ T5005] dccp_write_xmit+0x118/0x1d0 [ 78.017204][ T5005] dccp_sendmsg+0x538/0x8a8 [ 78.018028][ T5005] inet_sendmsg+0x154/0x284 [ 78.018755][ T5005] __sys_sendto+0x2e8/0x3d8 [ 78.019486][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 78.020250][ T5005] invoke_syscall+0x98/0x2b8 [ 78.020881][ T5005] el0_svc_common+0x138/0x258 [ 78.021592][ T5005] do_el0_svc+0x58/0x14c [ 78.022263][ T5005] el0_svc+0x78/0x1e0 [ 78.022888][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 78.023676][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 78.024638][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.026438][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 78.027497][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.029051][ T5005] Call trace: [ 78.029593][ T5005] dump_backtrace+0x0/0x43c [ 78.030293][ T5005] show_stack+0x2c/0x3c [ 78.030914][ T5005] __dump_stack+0x30/0x40 [ 78.031565][ T5005] dump_stack_lvl+0xf8/0x160 [ 78.032223][ T5005] dump_stack+0x1c/0x5c [ 78.032809][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.033706][ T5005] dccp_xmit_packet+0x298/0x448 [ 78.034521][ T5005] dccp_write_xmit+0x118/0x1d0 [ 78.035299][ T5005] dccp_sendmsg+0x538/0x8a8 [ 78.036029][ T5005] inet_sendmsg+0x154/0x284 [ 78.036746][ T5005] __sys_sendto+0x2e8/0x3d8 [ 78.037477][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 78.038297][ T5005] invoke_syscall+0x98/0x2b8 [ 78.039036][ T5005] el0_svc_common+0x138/0x258 [ 78.039812][ T5005] do_el0_svc+0x58/0x14c [ 78.040535][ T5005] el0_svc+0x78/0x1e0 [ 78.041231][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 78.042072][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 78.042969][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.044702][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 78.045698][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.047227][ T5005] Call trace: [ 78.047737][ T5005] dump_backtrace+0x0/0x43c [ 78.048445][ T5005] show_stack+0x2c/0x3c [ 78.049148][ T5005] __dump_stack+0x30/0x40 [ 78.049834][ T5005] dump_stack_lvl+0xf8/0x160 [ 78.050570][ T5005] dump_stack+0x1c/0x5c [ 78.051258][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.052116][ T5005] dccp_xmit_packet+0x298/0x448 [ 78.052952][ T5005] dccp_write_xmit+0x118/0x1d0 [ 78.053751][ T5005] dccp_sendmsg+0x538/0x8a8 [ 78.054502][ T5005] inet_sendmsg+0x154/0x284 [ 78.055220][ T5005] __sys_sendto+0x2e8/0x3d8 [ 78.055865][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 78.056637][ T5005] invoke_syscall+0x98/0x2b8 [ 78.057389][ T5005] el0_svc_common+0x138/0x258 [ 78.058110][ T5005] do_el0_svc+0x58/0x14c [ 78.058805][ T5005] el0_svc+0x78/0x1e0 [ 78.059438][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 78.060259][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 78.061163][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.062890][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 78.063916][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.065341][ T5005] Call trace: [ 78.065772][ T5005] dump_backtrace+0x0/0x43c [ 78.066417][ T5005] show_stack+0x2c/0x3c [ 78.066985][ T5005] __dump_stack+0x30/0x40 [ 78.067625][ T5005] dump_stack_lvl+0xf8/0x160 [ 78.068300][ T5005] dump_stack+0x1c/0x5c [ 78.068920][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.069731][ T5005] dccp_xmit_packet+0x298/0x448 [ 78.070456][ T5005] dccp_write_xmit+0x118/0x1d0 [ 78.071180][ T5005] dccp_sendmsg+0x538/0x8a8 [ 78.071846][ T5005] inet_sendmsg+0x154/0x284 [ 78.072516][ T5005] __sys_sendto+0x2e8/0x3d8 [ 78.073239][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 78.074027][ T5005] invoke_syscall+0x98/0x2b8 [ 78.074802][ T5005] el0_svc_common+0x138/0x258 [ 78.075553][ T5005] do_el0_svc+0x58/0x14c [ 78.076224][ T5005] el0_svc+0x78/0x1e0 [ 78.076851][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 78.077640][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 78.078502][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.080335][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 78.081369][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.083001][ T5005] Call trace: [ 78.083501][ T5005] dump_backtrace+0x0/0x43c [ 78.084216][ T5005] show_stack+0x2c/0x3c [ 78.084841][ T5005] __dump_stack+0x30/0x40 [ 78.085480][ T5005] dump_stack_lvl+0xf8/0x160 [ 78.086182][ T5005] dump_stack+0x1c/0x5c [ 78.086848][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.087798][ T5005] dccp_xmit_packet+0x298/0x448 [ 78.088576][ T5005] dccp_write_xmit+0x118/0x1d0 [ 78.089340][ T5005] dccp_sendmsg+0x538/0x8a8 [ 78.090088][ T5005] inet_sendmsg+0x154/0x284 [ 78.090838][ T5005] __sys_sendto+0x2e8/0x3d8 [ 78.091567][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 78.092408][ T5005] invoke_syscall+0x98/0x2b8 [ 78.093119][ T5005] el0_svc_common+0x138/0x258 [ 78.093853][ T5005] do_el0_svc+0x58/0x14c [ 78.094525][ T5005] el0_svc+0x78/0x1e0 [ 78.095111][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 78.095865][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 78.096921][ T5005] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.098728][ T5005] CPU: 1 PID: 5005 Comm: syz.0.24 Not tainted syzkaller #0 [ 78.099906][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.101443][ T5005] Call trace: [ 78.101961][ T5005] dump_backtrace+0x0/0x43c [ 78.102649][ T5005] show_stack+0x2c/0x3c [ 78.103289][ T5005] __dump_stack+0x30/0x40 [ 78.103978][ T5005] dump_stack_lvl+0xf8/0x160 [ 78.104660][ T5005] dump_stack+0x1c/0x5c [ 78.105272][ T5005] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.106228][ T5005] dccp_xmit_packet+0x298/0x448 [ 78.107054][ T5005] dccp_write_xmit+0x118/0x1d0 [ 78.107837][ T5005] dccp_sendmsg+0x538/0x8a8 [ 78.108525][ T5005] inet_sendmsg+0x154/0x284 [ 78.109191][ T5005] __sys_sendto+0x2e8/0x3d8 [ 78.109875][ T5005] __arm64_sys_sendto+0xd8/0xf8 [ 78.110632][ T5005] invoke_syscall+0x98/0x2b8 [ 78.111359][ T5005] el0_svc_common+0x138/0x258 [ 78.112110][ T5005] do_el0_svc+0x58/0x14c [ 78.112717][ T5005] el0_svc+0x78/0x1e0 [ 78.113341][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 78.114136][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 78.135178][ T5007] dccp_xmit_packet: Payload too large (65475) for featneg. [ 78.145231][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.147181][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.148306][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.149850][ T5007] Call trace: [ 78.150367][ T5007] dump_backtrace+0x0/0x43c [ 78.151105][ T5007] show_stack+0x2c/0x3c [ 78.151724][ T5007] __dump_stack+0x30/0x40 [ 78.152413][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.153223][ T5007] dump_stack+0x1c/0x5c [ 78.153933][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.154809][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.155583][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.156330][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.157118][ T5007] inet_sendmsg+0x154/0x284 [ 78.157882][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.158618][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.159434][ T5007] invoke_syscall+0x98/0x2b8 [ 78.160192][ T5007] el0_svc_common+0x138/0x258 [ 78.160971][ T5007] do_el0_svc+0x58/0x14c [ 78.161643][ T5007] el0_svc+0x78/0x1e0 [ 78.162257][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.162966][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.164060][ T136] team0 (unregistering): Port device team_slave_1 removed [ 78.167778][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.169449][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.169645][ T136] team0 (unregistering): Port device team_slave_0 removed [ 78.170401][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.172221][ T4181] Bluetooth: hci0: command 0x0419 tx timeout [ 78.173052][ T5007] Call trace: [ 78.174420][ T5007] dump_backtrace+0x0/0x43c [ 78.175133][ T5007] show_stack+0x2c/0x3c [ 78.175848][ T5007] __dump_stack+0x30/0x40 [ 78.176571][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.177373][ T5007] dump_stack+0x1c/0x5c [ 78.178100][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.179055][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.179838][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.180605][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.181298][ T5007] inet_sendmsg+0x154/0x284 [ 78.182054][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.182762][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.183484][ T5007] invoke_syscall+0x98/0x2b8 [ 78.184245][ T5007] el0_svc_common+0x138/0x258 [ 78.184998][ T5007] do_el0_svc+0x58/0x14c [ 78.185657][ T5007] el0_svc+0x78/0x1e0 [ 78.186325][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.187104][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.188125][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.189549][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.189908][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.192536][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.194201][ T5007] Call trace: [ 78.194776][ T5007] dump_backtrace+0x0/0x43c [ 78.195485][ T5007] show_stack+0x2c/0x3c [ 78.196164][ T5007] __dump_stack+0x30/0x40 [ 78.196908][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.197588][ T5007] dump_stack+0x1c/0x5c [ 78.198351][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.199253][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.200077][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.200886][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.201604][ T5007] inet_sendmsg+0x154/0x284 [ 78.202332][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.203022][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.203783][ T5007] invoke_syscall+0x98/0x2b8 [ 78.204506][ T5007] el0_svc_common+0x138/0x258 [ 78.205240][ T5007] do_el0_svc+0x58/0x14c [ 78.205863][ T5007] el0_svc+0x78/0x1e0 [ 78.206436][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.207164][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.208464][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.210303][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.211516][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.213126][ T5007] Call trace: [ 78.213630][ T5007] dump_backtrace+0x0/0x43c [ 78.214349][ T5007] show_stack+0x2c/0x3c [ 78.215078][ T5007] __dump_stack+0x30/0x40 [ 78.215774][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.216503][ T5007] dump_stack+0x1c/0x5c [ 78.217180][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.218027][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.218789][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.219530][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.220272][ T5007] inet_sendmsg+0x154/0x284 [ 78.221016][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.221770][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.222503][ T5007] invoke_syscall+0x98/0x2b8 [ 78.223259][ T5007] el0_svc_common+0x138/0x258 [ 78.224040][ T5007] do_el0_svc+0x58/0x14c [ 78.224680][ T5007] el0_svc+0x78/0x1e0 [ 78.225280][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.226065][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.227431][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.229234][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.230332][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.231892][ T5007] Call trace: [ 78.232393][ T5007] dump_backtrace+0x0/0x43c [ 78.233182][ T5007] show_stack+0x2c/0x3c [ 78.233830][ T5007] __dump_stack+0x30/0x40 [ 78.234553][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.235306][ T5007] dump_stack+0x1c/0x5c [ 78.236024][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.237021][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.237884][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.238687][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.239446][ T5007] inet_sendmsg+0x154/0x284 [ 78.240180][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.240928][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.241708][ T5007] invoke_syscall+0x98/0x2b8 [ 78.242484][ T5007] el0_svc_common+0x138/0x258 [ 78.243341][ T5007] do_el0_svc+0x58/0x14c [ 78.244087][ T5007] el0_svc+0x78/0x1e0 [ 78.244783][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.245604][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.247675][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.249482][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.250731][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.252420][ T5007] Call trace: [ 78.252951][ T5007] dump_backtrace+0x0/0x43c [ 78.253700][ T5007] show_stack+0x2c/0x3c [ 78.254405][ T5007] __dump_stack+0x30/0x40 [ 78.255096][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.255798][ T5007] dump_stack+0x1c/0x5c [ 78.256497][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.257408][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.258143][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.258910][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.259639][ T5007] inet_sendmsg+0x154/0x284 [ 78.260363][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.261112][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.261966][ T5007] invoke_syscall+0x98/0x2b8 [ 78.262717][ T5007] el0_svc_common+0x138/0x258 [ 78.263433][ T5007] do_el0_svc+0x58/0x14c [ 78.264121][ T5007] el0_svc+0x78/0x1e0 [ 78.264725][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.265549][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.266595][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.267695][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.268343][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.270811][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.272309][ T5007] Call trace: [ 78.272820][ T5007] dump_backtrace+0x0/0x43c [ 78.273566][ T5007] show_stack+0x2c/0x3c [ 78.274207][ T5007] __dump_stack+0x30/0x40 [ 78.274875][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.275586][ T5007] dump_stack+0x1c/0x5c [ 78.276260][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.277068][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.277885][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.278629][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.279338][ T5007] inet_sendmsg+0x154/0x284 [ 78.280026][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.280762][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.281529][ T5007] invoke_syscall+0x98/0x2b8 [ 78.282312][ T5007] el0_svc_common+0x138/0x258 [ 78.283079][ T5007] do_el0_svc+0x58/0x14c [ 78.283786][ T5007] el0_svc+0x78/0x1e0 [ 78.284495][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.285340][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.286461][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.288209][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.289369][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.290921][ T5007] Call trace: [ 78.291482][ T5007] dump_backtrace+0x0/0x43c [ 78.292174][ T5007] show_stack+0x2c/0x3c [ 78.292861][ T5007] __dump_stack+0x30/0x40 [ 78.293559][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.294206][ T5007] dump_stack+0x1c/0x5c [ 78.294914][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.295791][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.296567][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.297358][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.298085][ T5007] inet_sendmsg+0x154/0x284 [ 78.298859][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.299587][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.300379][ T5007] invoke_syscall+0x98/0x2b8 [ 78.301057][ T5007] el0_svc_common+0x138/0x258 [ 78.301791][ T5007] do_el0_svc+0x58/0x14c [ 78.302422][ T5007] el0_svc+0x78/0x1e0 [ 78.303124][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.303886][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.304853][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.306614][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.307739][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.309447][ T5007] Call trace: [ 78.309965][ T5007] dump_backtrace+0x0/0x43c [ 78.310736][ T5007] show_stack+0x2c/0x3c [ 78.311409][ T5007] __dump_stack+0x30/0x40 [ 78.312125][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.312835][ T5007] dump_stack+0x1c/0x5c [ 78.313515][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.314494][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.315219][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.315978][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.316762][ T5007] inet_sendmsg+0x154/0x284 [ 78.317506][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.318192][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.318916][ T5007] invoke_syscall+0x98/0x2b8 [ 78.319657][ T5007] el0_svc_common+0x138/0x258 [ 78.320386][ T5007] do_el0_svc+0x58/0x14c [ 78.321057][ T5007] el0_svc+0x78/0x1e0 [ 78.321646][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.322415][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.323763][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.325583][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.326808][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.328423][ T5007] Call trace: [ 78.328931][ T5007] dump_backtrace+0x0/0x43c [ 78.329636][ T5007] show_stack+0x2c/0x3c [ 78.330296][ T5007] __dump_stack+0x30/0x40 [ 78.330997][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.331744][ T5007] dump_stack+0x1c/0x5c [ 78.332461][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.333365][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.334150][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.334923][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.335658][ T5007] inet_sendmsg+0x154/0x284 [ 78.336412][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.337151][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.337960][ T5007] invoke_syscall+0x98/0x2b8 [ 78.338666][ T5007] el0_svc_common+0x138/0x258 [ 78.339401][ T5007] do_el0_svc+0x58/0x14c [ 78.340113][ T5007] el0_svc+0x78/0x1e0 [ 78.340769][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.341601][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.342645][ T5007] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.344361][ T5007] CPU: 0 PID: 5007 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.345488][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.347055][ T5007] Call trace: [ 78.347561][ T5007] dump_backtrace+0x0/0x43c [ 78.348251][ T5007] show_stack+0x2c/0x3c [ 78.348936][ T5007] __dump_stack+0x30/0x40 [ 78.349607][ T5007] dump_stack_lvl+0xf8/0x160 [ 78.350318][ T5007] dump_stack+0x1c/0x5c [ 78.350986][ T5007] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.351921][ T5007] dccp_xmit_packet+0x298/0x448 [ 78.352724][ T5007] dccp_write_xmit+0x118/0x1d0 [ 78.353436][ T5007] dccp_sendmsg+0x538/0x8a8 [ 78.354186][ T5007] inet_sendmsg+0x154/0x284 [ 78.354949][ T5007] __sys_sendto+0x2e8/0x3d8 [ 78.355663][ T5007] __arm64_sys_sendto+0xd8/0xf8 [ 78.356340][ T5007] invoke_syscall+0x98/0x2b8 [ 78.357107][ T5007] el0_svc_common+0x138/0x258 [ 78.357887][ T5007] do_el0_svc+0x58/0x14c [ 78.358678][ T5007] el0_svc+0x78/0x1e0 [ 78.359360][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 78.360196][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 78.377630][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.379602][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.380789][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.382306][ T5009] Call trace: [ 78.382849][ T5009] dump_backtrace+0x0/0x43c [ 78.383629][ T5009] show_stack+0x2c/0x3c [ 78.384261][ T5009] __dump_stack+0x30/0x40 [ 78.384925][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.385653][ T5009] dump_stack+0x1c/0x5c [ 78.386196][ T136] bond0 (unregistering): Released all slaves [ 78.386279][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.388235][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.389096][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.389938][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.390702][ T5009] inet_sendmsg+0x154/0x284 [ 78.391453][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.392181][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.393010][ T5009] invoke_syscall+0x98/0x2b8 [ 78.393769][ T5009] el0_svc_common+0x138/0x258 [ 78.394490][ T5009] do_el0_svc+0x58/0x14c [ 78.395190][ T5009] el0_svc+0x78/0x1e0 [ 78.395806][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.396590][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.397934][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.399661][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.400856][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.402567][ T5009] Call trace: [ 78.403086][ T5009] dump_backtrace+0x0/0x43c [ 78.403752][ T5009] show_stack+0x2c/0x3c [ 78.404383][ T5009] __dump_stack+0x30/0x40 [ 78.405067][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.405792][ T5009] dump_stack+0x1c/0x5c [ 78.406478][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.407334][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.408063][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.408750][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.409434][ T5009] inet_sendmsg+0x154/0x284 [ 78.410132][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.410818][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.411538][ T5009] invoke_syscall+0x98/0x2b8 [ 78.412212][ T5009] el0_svc_common+0x138/0x258 [ 78.412901][ T5009] do_el0_svc+0x58/0x14c [ 78.413529][ T5009] el0_svc+0x78/0x1e0 [ 78.414157][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.414913][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.415813][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.417485][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.418651][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.420060][ T5009] Call trace: [ 78.420580][ T5009] dump_backtrace+0x0/0x43c [ 78.421291][ T5009] show_stack+0x2c/0x3c [ 78.421995][ T5009] __dump_stack+0x30/0x40 [ 78.422740][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.423478][ T5009] dump_stack+0x1c/0x5c [ 78.424174][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.425044][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.425859][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.426658][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.427388][ T5009] inet_sendmsg+0x154/0x284 [ 78.428124][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.428789][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.429523][ T5009] invoke_syscall+0x98/0x2b8 [ 78.430297][ T5009] el0_svc_common+0x138/0x258 [ 78.431003][ T5009] do_el0_svc+0x58/0x14c [ 78.431625][ T5009] el0_svc+0x78/0x1e0 [ 78.432234][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.432980][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.434434][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.436297][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.437370][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.438983][ T5009] Call trace: [ 78.439512][ T5009] dump_backtrace+0x0/0x43c [ 78.440181][ T5009] show_stack+0x2c/0x3c [ 78.440799][ T5009] __dump_stack+0x30/0x40 [ 78.441529][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.442332][ T5009] dump_stack+0x1c/0x5c [ 78.443014][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.443847][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.444611][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.445308][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.445987][ T5009] inet_sendmsg+0x154/0x284 [ 78.446708][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.447405][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.448281][ T5009] invoke_syscall+0x98/0x2b8 [ 78.449087][ T5009] el0_svc_common+0x138/0x258 [ 78.449845][ T5009] do_el0_svc+0x58/0x14c [ 78.450574][ T5009] el0_svc+0x78/0x1e0 [ 78.451238][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.452092][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.453201][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.455085][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.456192][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.457797][ T5009] Call trace: [ 78.458295][ T5009] dump_backtrace+0x0/0x43c [ 78.458987][ T5009] show_stack+0x2c/0x3c [ 78.459628][ T5009] __dump_stack+0x30/0x40 [ 78.460285][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.461016][ T5009] dump_stack+0x1c/0x5c [ 78.461634][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.462446][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.463242][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.464053][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.464810][ T5009] inet_sendmsg+0x154/0x284 [ 78.465574][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.466290][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.467062][ T5009] invoke_syscall+0x98/0x2b8 [ 78.467808][ T5009] el0_svc_common+0x138/0x258 [ 78.468592][ T5009] do_el0_svc+0x58/0x14c [ 78.469274][ T5009] el0_svc+0x78/0x1e0 [ 78.469960][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.470796][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.471748][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.473696][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.474663][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.476129][ T5009] Call trace: [ 78.476589][ T5009] dump_backtrace+0x0/0x43c [ 78.477285][ T5009] show_stack+0x2c/0x3c [ 78.477984][ T5009] __dump_stack+0x30/0x40 [ 78.478696][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.479404][ T5009] dump_stack+0x1c/0x5c [ 78.480105][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.481030][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.481837][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.482665][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.483428][ T5009] inet_sendmsg+0x154/0x284 [ 78.484141][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.484873][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.485620][ T5009] invoke_syscall+0x98/0x2b8 [ 78.486343][ T5009] el0_svc_common+0x138/0x258 [ 78.487088][ T5009] do_el0_svc+0x58/0x14c [ 78.487731][ T5009] el0_svc+0x78/0x1e0 [ 78.488407][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.489279][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.490281][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.491825][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.492908][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.494521][ T5009] Call trace: [ 78.495056][ T5009] dump_backtrace+0x0/0x43c [ 78.495839][ T5009] show_stack+0x2c/0x3c [ 78.496525][ T5009] __dump_stack+0x30/0x40 [ 78.497171][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.497918][ T5009] dump_stack+0x1c/0x5c [ 78.498649][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.499534][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.500285][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.501022][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.501781][ T5009] inet_sendmsg+0x154/0x284 [ 78.502500][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.503192][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.504007][ T5009] invoke_syscall+0x98/0x2b8 [ 78.504782][ T5009] el0_svc_common+0x138/0x258 [ 78.505533][ T5009] do_el0_svc+0x58/0x14c [ 78.506229][ T5009] el0_svc+0x78/0x1e0 [ 78.506934][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.507715][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.509124][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.516203][ T5009] CPU: 0 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.517372][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.519005][ T5009] Call trace: [ 78.519511][ T5009] dump_backtrace+0x0/0x43c [ 78.520253][ T5009] show_stack+0x2c/0x3c [ 78.520953][ T5009] __dump_stack+0x30/0x40 [ 78.521626][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.522349][ T5009] dump_stack+0x1c/0x5c [ 78.522978][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.523822][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.524577][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.525305][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.526072][ T5009] inet_sendmsg+0x154/0x284 [ 78.526828][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.527541][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.528287][ T5009] invoke_syscall+0x98/0x2b8 [ 78.528964][ T5009] el0_svc_common+0x138/0x258 [ 78.529670][ T5009] do_el0_svc+0x58/0x14c [ 78.530395][ T5009] el0_svc+0x78/0x1e0 [ 78.531058][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.531922][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.533789][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.535579][ T5009] CPU: 1 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.536528][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.538039][ T5009] Call trace: [ 78.538505][ T5009] dump_backtrace+0x0/0x43c [ 78.539165][ T5009] show_stack+0x2c/0x3c [ 78.539796][ T5009] __dump_stack+0x30/0x40 [ 78.540453][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.541104][ T5009] dump_stack+0x1c/0x5c [ 78.541697][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.542545][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.543212][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.543935][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.544583][ T5009] inet_sendmsg+0x154/0x284 [ 78.545256][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.545906][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.546619][ T5009] invoke_syscall+0x98/0x2b8 [ 78.547254][ T5009] el0_svc_common+0x138/0x258 [ 78.548000][ T5009] do_el0_svc+0x58/0x14c [ 78.548731][ T5009] el0_svc+0x78/0x1e0 [ 78.549353][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.550096][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.551161][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.552834][ T5009] CPU: 1 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.553941][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.555489][ T5009] Call trace: [ 78.555989][ T5009] dump_backtrace+0x0/0x43c [ 78.556679][ T5009] show_stack+0x2c/0x3c [ 78.557323][ T5009] __dump_stack+0x30/0x40 [ 78.557945][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.558614][ T5009] dump_stack+0x1c/0x5c [ 78.559303][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.560055][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.560845][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.561574][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.562298][ T5009] inet_sendmsg+0x154/0x284 [ 78.562998][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.563664][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.564425][ T5009] invoke_syscall+0x98/0x2b8 [ 78.565151][ T5009] el0_svc_common+0x138/0x258 [ 78.565949][ T5009] do_el0_svc+0x58/0x14c [ 78.566670][ T5009] el0_svc+0x78/0x1e0 [ 78.567287][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.568077][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.569384][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.571130][ T5009] CPU: 1 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.572207][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.573753][ T5009] Call trace: [ 78.574229][ T5009] dump_backtrace+0x0/0x43c [ 78.574909][ T5009] show_stack+0x2c/0x3c [ 78.575554][ T5009] __dump_stack+0x30/0x40 [ 78.576251][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.576962][ T5009] dump_stack+0x1c/0x5c [ 78.577611][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.578498][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.579276][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.580046][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.580711][ T5009] inet_sendmsg+0x154/0x284 [ 78.581391][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.582058][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.582722][ T5009] invoke_syscall+0x98/0x2b8 [ 78.583411][ T5009] el0_svc_common+0x138/0x258 [ 78.584145][ T5009] do_el0_svc+0x58/0x14c [ 78.584776][ T5009] el0_svc+0x78/0x1e0 [ 78.585376][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.586138][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.587191][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.588858][ T5009] CPU: 1 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.589984][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.591519][ T5009] Call trace: [ 78.592049][ T5009] dump_backtrace+0x0/0x43c [ 78.592886][ T5009] show_stack+0x2c/0x3c [ 78.593633][ T5009] __dump_stack+0x30/0x40 [ 78.594358][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.595158][ T5009] dump_stack+0x1c/0x5c [ 78.595846][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.596780][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.597521][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.598236][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.599025][ T5009] inet_sendmsg+0x154/0x284 [ 78.599771][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.600516][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.601319][ T5009] invoke_syscall+0x98/0x2b8 [ 78.602017][ T5009] el0_svc_common+0x138/0x258 [ 78.602731][ T5009] do_el0_svc+0x58/0x14c [ 78.603438][ T5009] el0_svc+0x78/0x1e0 [ 78.604058][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.604851][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.605728][ T5009] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.607453][ T5009] CPU: 1 PID: 5009 Comm: syz.0.26 Not tainted syzkaller #0 [ 78.608437][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.610008][ T5009] Call trace: [ 78.610544][ T5009] dump_backtrace+0x0/0x43c [ 78.611250][ T5009] show_stack+0x2c/0x3c [ 78.611893][ T5009] __dump_stack+0x30/0x40 [ 78.612545][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.613270][ T5009] dump_stack+0x1c/0x5c [ 78.613963][ T5009] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.614824][ T5009] dccp_xmit_packet+0x298/0x448 [ 78.615585][ T5009] dccp_write_xmit+0x118/0x1d0 [ 78.616334][ T5009] dccp_sendmsg+0x538/0x8a8 [ 78.617021][ T5009] inet_sendmsg+0x154/0x284 [ 78.617721][ T5009] __sys_sendto+0x2e8/0x3d8 [ 78.618429][ T5009] __arm64_sys_sendto+0xd8/0xf8 [ 78.619229][ T5009] invoke_syscall+0x98/0x2b8 [ 78.619899][ T5009] el0_svc_common+0x138/0x258 [ 78.620603][ T5009] do_el0_svc+0x58/0x14c [ 78.621281][ T5009] el0_svc+0x78/0x1e0 [ 78.621911][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.622702][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.638946][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.640824][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.641988][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.643682][ T5011] Call trace: [ 78.644195][ T5011] dump_backtrace+0x0/0x43c [ 78.644968][ T5011] show_stack+0x2c/0x3c [ 78.645628][ T5011] __dump_stack+0x30/0x40 [ 78.646343][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.647105][ T5011] dump_stack+0x1c/0x5c [ 78.647814][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.648650][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.649419][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.650188][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.650926][ T5011] inet_sendmsg+0x154/0x284 [ 78.651577][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.652246][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.652971][ T5011] invoke_syscall+0x98/0x2b8 [ 78.653633][ T5011] el0_svc_common+0x138/0x258 [ 78.654452][ T5011] do_el0_svc+0x58/0x14c [ 78.655140][ T5011] el0_svc+0x78/0x1e0 [ 78.655745][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.656483][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.657547][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.659332][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.660385][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.661952][ T5011] Call trace: [ 78.662474][ T5011] dump_backtrace+0x0/0x43c [ 78.663176][ T5011] show_stack+0x2c/0x3c [ 78.663877][ T5011] __dump_stack+0x30/0x40 [ 78.664593][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.665291][ T5011] dump_stack+0x1c/0x5c [ 78.665941][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.666796][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.667523][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.668217][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.668875][ T5011] inet_sendmsg+0x154/0x284 [ 78.669573][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.670201][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.670860][ T5011] invoke_syscall+0x98/0x2b8 [ 78.671521][ T5011] el0_svc_common+0x138/0x258 [ 78.672188][ T5011] do_el0_svc+0x58/0x14c [ 78.672898][ T5011] el0_svc+0x78/0x1e0 [ 78.673560][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.674379][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.675430][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.677051][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.678101][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.679550][ T5011] Call trace: [ 78.680015][ T5011] dump_backtrace+0x0/0x43c [ 78.680635][ T5011] show_stack+0x2c/0x3c [ 78.681249][ T5011] __dump_stack+0x30/0x40 [ 78.681898][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.682612][ T5011] dump_stack+0x1c/0x5c [ 78.683239][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.684022][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.684780][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.685517][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.686266][ T5011] inet_sendmsg+0x154/0x284 [ 78.686990][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.687714][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.688471][ T5011] invoke_syscall+0x98/0x2b8 [ 78.689174][ T5011] el0_svc_common+0x138/0x258 [ 78.689848][ T5011] do_el0_svc+0x58/0x14c [ 78.690448][ T5011] el0_svc+0x78/0x1e0 [ 78.691065][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.691868][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.693013][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.694603][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.695630][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.697139][ T5011] Call trace: [ 78.697590][ T5011] dump_backtrace+0x0/0x43c [ 78.698243][ T5011] show_stack+0x2c/0x3c [ 78.698861][ T5011] __dump_stack+0x30/0x40 [ 78.699488][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.700174][ T5011] dump_stack+0x1c/0x5c [ 78.700843][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.701595][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.702292][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.702970][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.703647][ T5011] inet_sendmsg+0x154/0x284 [ 78.704276][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.704894][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.705566][ T5011] invoke_syscall+0x98/0x2b8 [ 78.706206][ T5011] el0_svc_common+0x138/0x258 [ 78.706855][ T5011] do_el0_svc+0x58/0x14c [ 78.707468][ T5011] el0_svc+0x78/0x1e0 [ 78.708051][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.708830][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.709666][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.711229][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.712237][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.713691][ T5011] Call trace: [ 78.714204][ T5011] dump_backtrace+0x0/0x43c [ 78.714925][ T5011] show_stack+0x2c/0x3c [ 78.715562][ T5011] __dump_stack+0x30/0x40 [ 78.716176][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.716869][ T5011] dump_stack+0x1c/0x5c [ 78.717565][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.718420][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.719160][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.719857][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.720510][ T5011] inet_sendmsg+0x154/0x284 [ 78.721290][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.722041][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.722761][ T5011] invoke_syscall+0x98/0x2b8 [ 78.723473][ T5011] el0_svc_common+0x138/0x258 [ 78.724283][ T5011] do_el0_svc+0x58/0x14c [ 78.724986][ T5011] el0_svc+0x78/0x1e0 [ 78.725564][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.726389][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.727271][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.729098][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.730265][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.731795][ T5011] Call trace: [ 78.732353][ T5011] dump_backtrace+0x0/0x43c [ 78.733024][ T5011] show_stack+0x2c/0x3c [ 78.733725][ T5011] __dump_stack+0x30/0x40 [ 78.734354][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.735018][ T5011] dump_stack+0x1c/0x5c [ 78.735656][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.736537][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.737271][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.738007][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.738701][ T5011] inet_sendmsg+0x154/0x284 [ 78.739382][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.740051][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.740729][ T5011] invoke_syscall+0x98/0x2b8 [ 78.741408][ T5011] el0_svc_common+0x138/0x258 [ 78.742127][ T5011] do_el0_svc+0x58/0x14c [ 78.742705][ T5011] el0_svc+0x78/0x1e0 [ 78.743329][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.744129][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.745033][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.746802][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.747868][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.749195][ T5011] Call trace: [ 78.749716][ T5011] dump_backtrace+0x0/0x43c [ 78.750379][ T5011] show_stack+0x2c/0x3c [ 78.750973][ T5011] __dump_stack+0x30/0x40 [ 78.751647][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.752427][ T5011] dump_stack+0x1c/0x5c [ 78.753088][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.753951][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.754718][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.755399][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.756163][ T5011] inet_sendmsg+0x154/0x284 [ 78.756875][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.757617][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.758391][ T5011] invoke_syscall+0x98/0x2b8 [ 78.759128][ T5011] el0_svc_common+0x138/0x258 [ 78.759841][ T5011] do_el0_svc+0x58/0x14c [ 78.760490][ T5011] el0_svc+0x78/0x1e0 [ 78.761190][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.762060][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.763539][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.765221][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.766281][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.767732][ T5011] Call trace: [ 78.768226][ T5011] dump_backtrace+0x0/0x43c [ 78.768872][ T5011] show_stack+0x2c/0x3c [ 78.769493][ T5011] __dump_stack+0x30/0x40 [ 78.770153][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.770837][ T5011] dump_stack+0x1c/0x5c [ 78.771414][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.772214][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.772958][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.773725][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.774389][ T5011] inet_sendmsg+0x154/0x284 [ 78.775097][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.775758][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.776469][ T5011] invoke_syscall+0x98/0x2b8 [ 78.777211][ T5011] el0_svc_common+0x138/0x258 [ 78.777926][ T5011] do_el0_svc+0x58/0x14c [ 78.778599][ T5011] el0_svc+0x78/0x1e0 [ 78.779240][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.780044][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.780917][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.782637][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.783643][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.785115][ T5011] Call trace: [ 78.785630][ T5011] dump_backtrace+0x0/0x43c [ 78.786281][ T5011] show_stack+0x2c/0x3c [ 78.786815][ T5011] __dump_stack+0x30/0x40 [ 78.787393][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.787999][ T5011] dump_stack+0x1c/0x5c [ 78.788545][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.789390][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.790167][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.790896][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.791580][ T5011] inet_sendmsg+0x154/0x284 [ 78.792274][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.792939][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.793725][ T5011] invoke_syscall+0x98/0x2b8 [ 78.794397][ T5011] el0_svc_common+0x138/0x258 [ 78.795088][ T5011] do_el0_svc+0x58/0x14c [ 78.795723][ T5011] el0_svc+0x78/0x1e0 [ 78.796343][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.797073][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.797983][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.799707][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.800836][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.802336][ T5011] Call trace: [ 78.802866][ T5011] dump_backtrace+0x0/0x43c [ 78.803552][ T5011] show_stack+0x2c/0x3c [ 78.804211][ T5011] __dump_stack+0x30/0x40 [ 78.804860][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.805517][ T5011] dump_stack+0x1c/0x5c [ 78.806131][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.806928][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.807599][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.808283][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.808922][ T5011] inet_sendmsg+0x154/0x284 [ 78.809555][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.810198][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.810885][ T5011] invoke_syscall+0x98/0x2b8 [ 78.811560][ T5011] el0_svc_common+0x138/0x258 [ 78.812238][ T5011] do_el0_svc+0x58/0x14c [ 78.812925][ T5011] el0_svc+0x78/0x1e0 [ 78.813465][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.814261][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.815058][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.816503][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.817486][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.818899][ T5011] Call trace: [ 78.819344][ T5011] dump_backtrace+0x0/0x43c [ 78.820010][ T5011] show_stack+0x2c/0x3c [ 78.820629][ T5011] __dump_stack+0x30/0x40 [ 78.821255][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.821877][ T5011] dump_stack+0x1c/0x5c [ 78.822473][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.823280][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.823993][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.824691][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.825394][ T5011] inet_sendmsg+0x154/0x284 [ 78.826132][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.826894][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.827687][ T5011] invoke_syscall+0x98/0x2b8 [ 78.828420][ T5011] el0_svc_common+0x138/0x258 [ 78.829140][ T5011] do_el0_svc+0x58/0x14c [ 78.829790][ T5011] el0_svc+0x78/0x1e0 [ 78.830420][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.831152][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.832162][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.833880][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.834989][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.836449][ T5011] Call trace: [ 78.836898][ T5011] dump_backtrace+0x0/0x43c [ 78.837512][ T5011] show_stack+0x2c/0x3c [ 78.838092][ T5011] __dump_stack+0x30/0x40 [ 78.838746][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.839455][ T5011] dump_stack+0x1c/0x5c [ 78.840015][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.840826][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.841507][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.842231][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.842967][ T5011] inet_sendmsg+0x154/0x284 [ 78.843671][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.844342][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.845032][ T5011] invoke_syscall+0x98/0x2b8 [ 78.845728][ T5011] el0_svc_common+0x138/0x258 [ 78.846520][ T5011] do_el0_svc+0x58/0x14c [ 78.847186][ T5011] el0_svc+0x78/0x1e0 [ 78.847810][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.848610][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.849585][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.851393][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.852528][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.854065][ T5011] Call trace: [ 78.854581][ T5011] dump_backtrace+0x0/0x43c [ 78.855255][ T5011] show_stack+0x2c/0x3c [ 78.855874][ T5011] __dump_stack+0x30/0x40 [ 78.856511][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.857179][ T5011] dump_stack+0x1c/0x5c [ 78.857781][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.858678][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.859402][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.860071][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.860716][ T5011] inet_sendmsg+0x154/0x284 [ 78.861376][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.862024][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.862762][ T5011] invoke_syscall+0x98/0x2b8 [ 78.863402][ T5011] el0_svc_common+0x138/0x258 [ 78.864086][ T5011] do_el0_svc+0x58/0x14c [ 78.864680][ T5011] el0_svc+0x78/0x1e0 [ 78.865269][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.866079][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.867010][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.868523][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.869523][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.870872][ T5011] Call trace: [ 78.871312][ T5011] dump_backtrace+0x0/0x43c [ 78.871927][ T5011] show_stack+0x2c/0x3c [ 78.872514][ T5011] __dump_stack+0x30/0x40 [ 78.873102][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.873741][ T5011] dump_stack+0x1c/0x5c [ 78.874308][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.875119][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.875920][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.876676][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.877397][ T5011] inet_sendmsg+0x154/0x284 [ 78.878099][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.878775][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.879460][ T5011] invoke_syscall+0x98/0x2b8 [ 78.880110][ T5011] el0_svc_common+0x138/0x258 [ 78.880803][ T5011] do_el0_svc+0x58/0x14c [ 78.881416][ T5011] el0_svc+0x78/0x1e0 [ 78.881956][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.882731][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.883619][ T5011] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.885284][ T5011] CPU: 1 PID: 5011 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.886365][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.887816][ T5011] Call trace: [ 78.888334][ T5011] dump_backtrace+0x0/0x43c [ 78.889053][ T5011] show_stack+0x2c/0x3c [ 78.889661][ T5011] __dump_stack+0x30/0x40 [ 78.890340][ T5011] dump_stack_lvl+0xf8/0x160 [ 78.891000][ T5011] dump_stack+0x1c/0x5c [ 78.891604][ T5011] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.892485][ T5011] dccp_xmit_packet+0x298/0x448 [ 78.893239][ T5011] dccp_write_xmit+0x118/0x1d0 [ 78.893980][ T5011] dccp_sendmsg+0x538/0x8a8 [ 78.894647][ T5011] inet_sendmsg+0x154/0x284 [ 78.895356][ T5011] __sys_sendto+0x2e8/0x3d8 [ 78.896089][ T5011] __arm64_sys_sendto+0xd8/0xf8 [ 78.896872][ T5011] invoke_syscall+0x98/0x2b8 [ 78.897576][ T5011] el0_svc_common+0x138/0x258 [ 78.898325][ T5011] do_el0_svc+0x58/0x14c [ 78.898988][ T5011] el0_svc+0x78/0x1e0 [ 78.899637][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 78.900383][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 78.916489][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.918256][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 78.919275][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.920682][ T5013] Call trace: [ 78.921164][ T5013] dump_backtrace+0x0/0x43c [ 78.921839][ T5013] show_stack+0x2c/0x3c [ 78.922524][ T5013] __dump_stack+0x30/0x40 [ 78.923258][ T5013] dump_stack_lvl+0xf8/0x160 [ 78.924006][ T5013] dump_stack+0x1c/0x5c [ 78.924643][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.925459][ T5013] dccp_xmit_packet+0x298/0x448 [ 78.926270][ T5013] dccp_write_xmit+0x118/0x1d0 [ 78.927047][ T5013] dccp_sendmsg+0x538/0x8a8 [ 78.927765][ T5013] inet_sendmsg+0x154/0x284 [ 78.928565][ T5013] __sys_sendto+0x2e8/0x3d8 [ 78.929278][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 78.930122][ T5013] invoke_syscall+0x98/0x2b8 [ 78.930758][ T5013] el0_svc_common+0x138/0x258 [ 78.931419][ T5013] do_el0_svc+0x58/0x14c [ 78.932148][ T5013] el0_svc+0x78/0x1e0 [ 78.932734][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 78.933545][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 78.935713][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.937521][ T5013] CPU: 0 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 78.938668][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.940121][ T5013] Call trace: [ 78.940603][ T5013] dump_backtrace+0x0/0x43c [ 78.941315][ T5013] show_stack+0x2c/0x3c [ 78.941999][ T5013] __dump_stack+0x30/0x40 [ 78.942673][ T5013] dump_stack_lvl+0xf8/0x160 [ 78.943352][ T5013] dump_stack+0x1c/0x5c [ 78.943967][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.944787][ T5013] dccp_xmit_packet+0x298/0x448 [ 78.945572][ T5013] dccp_write_xmit+0x118/0x1d0 [ 78.946306][ T5013] dccp_sendmsg+0x538/0x8a8 [ 78.946991][ T5013] inet_sendmsg+0x154/0x284 [ 78.947751][ T5013] __sys_sendto+0x2e8/0x3d8 [ 78.948480][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 78.949277][ T5013] invoke_syscall+0x98/0x2b8 [ 78.950035][ T5013] el0_svc_common+0x138/0x258 [ 78.950772][ T5013] do_el0_svc+0x58/0x14c [ 78.951432][ T5013] el0_svc+0x78/0x1e0 [ 78.952072][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 78.952859][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 78.954624][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.956155][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 78.957277][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.958875][ T5013] Call trace: [ 78.959332][ T5013] dump_backtrace+0x0/0x43c [ 78.960003][ T5013] show_stack+0x2c/0x3c [ 78.960673][ T5013] __dump_stack+0x30/0x40 [ 78.961318][ T5013] dump_stack_lvl+0xf8/0x160 [ 78.962025][ T5013] dump_stack+0x1c/0x5c [ 78.962740][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.963680][ T5013] dccp_xmit_packet+0x298/0x448 [ 78.964536][ T5013] dccp_write_xmit+0x118/0x1d0 [ 78.965300][ T5013] dccp_sendmsg+0x538/0x8a8 [ 78.966000][ T5013] inet_sendmsg+0x154/0x284 [ 78.966742][ T5013] __sys_sendto+0x2e8/0x3d8 [ 78.967429][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 78.968193][ T5013] invoke_syscall+0x98/0x2b8 [ 78.968972][ T5013] el0_svc_common+0x138/0x258 [ 78.969731][ T5013] do_el0_svc+0x58/0x14c [ 78.970476][ T5013] el0_svc+0x78/0x1e0 [ 78.971105][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 78.971920][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 78.973649][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.975510][ T5013] CPU: 0 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 78.976650][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.978199][ T5013] Call trace: [ 78.978698][ T5013] dump_backtrace+0x0/0x43c [ 78.979335][ T5013] show_stack+0x2c/0x3c [ 78.980008][ T5013] __dump_stack+0x30/0x40 [ 78.980721][ T5013] dump_stack_lvl+0xf8/0x160 [ 78.981404][ T5013] dump_stack+0x1c/0x5c [ 78.982077][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.982835][ T5013] dccp_xmit_packet+0x298/0x448 [ 78.983531][ T5013] dccp_write_xmit+0x118/0x1d0 [ 78.984246][ T5013] dccp_sendmsg+0x538/0x8a8 [ 78.984914][ T5013] inet_sendmsg+0x154/0x284 [ 78.985632][ T5013] __sys_sendto+0x2e8/0x3d8 [ 78.986304][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 78.987058][ T5013] invoke_syscall+0x98/0x2b8 [ 78.987762][ T5013] el0_svc_common+0x138/0x258 [ 78.988583][ T5013] do_el0_svc+0x58/0x14c [ 78.989296][ T5013] el0_svc+0x78/0x1e0 [ 78.989990][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 78.990869][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 78.993392][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.995171][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 78.996283][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.997758][ T5013] Call trace: [ 78.998257][ T5013] dump_backtrace+0x0/0x43c [ 78.999021][ T5013] show_stack+0x2c/0x3c [ 78.999701][ T5013] __dump_stack+0x30/0x40 [ 79.000439][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.001194][ T5013] dump_stack+0x1c/0x5c [ 79.001872][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.002723][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.003575][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.004342][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.005085][ T5013] inet_sendmsg+0x154/0x284 [ 79.005865][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.006589][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.007384][ T5013] invoke_syscall+0x98/0x2b8 [ 79.008143][ T5013] el0_svc_common+0x138/0x258 [ 79.008921][ T5013] do_el0_svc+0x58/0x14c [ 79.009559][ T5013] el0_svc+0x78/0x1e0 [ 79.010212][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.011087][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.013090][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.014737][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.015819][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.017224][ T5013] Call trace: [ 79.017693][ T5013] dump_backtrace+0x0/0x43c [ 79.018328][ T5013] show_stack+0x2c/0x3c [ 79.018898][ T5013] __dump_stack+0x30/0x40 [ 79.019627][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.020306][ T5013] dump_stack+0x1c/0x5c [ 79.020885][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.021733][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.022432][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.023155][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.023802][ T5013] inet_sendmsg+0x154/0x284 [ 79.024473][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.025099][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.025803][ T5013] invoke_syscall+0x98/0x2b8 [ 79.026425][ T5013] el0_svc_common+0x138/0x258 [ 79.027073][ T5013] do_el0_svc+0x58/0x14c [ 79.027693][ T5013] el0_svc+0x78/0x1e0 [ 79.028320][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.029090][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.029911][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.031578][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.032527][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.033975][ T5013] Call trace: [ 79.034420][ T5013] dump_backtrace+0x0/0x43c [ 79.035075][ T5013] show_stack+0x2c/0x3c [ 79.035678][ T5013] __dump_stack+0x30/0x40 [ 79.036337][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.036967][ T5013] dump_stack+0x1c/0x5c [ 79.037542][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.038412][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.039214][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.039958][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.040729][ T5013] inet_sendmsg+0x154/0x284 [ 79.041400][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.042030][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.042831][ T5013] invoke_syscall+0x98/0x2b8 [ 79.043538][ T5013] el0_svc_common+0x138/0x258 [ 79.044335][ T5013] do_el0_svc+0x58/0x14c [ 79.045012][ T5013] el0_svc+0x78/0x1e0 [ 79.045610][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.046409][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.047608][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.049381][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.050370][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.051945][ T5013] Call trace: [ 79.052482][ T5013] dump_backtrace+0x0/0x43c [ 79.053201][ T5013] show_stack+0x2c/0x3c [ 79.053838][ T5013] __dump_stack+0x30/0x40 [ 79.054560][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.055341][ T5013] dump_stack+0x1c/0x5c [ 79.056002][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.056880][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.057667][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.058443][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.059159][ T5013] inet_sendmsg+0x154/0x284 [ 79.059899][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.060615][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.061313][ T5013] invoke_syscall+0x98/0x2b8 [ 79.061986][ T5013] el0_svc_common+0x138/0x258 [ 79.062703][ T5013] do_el0_svc+0x58/0x14c [ 79.063367][ T5013] el0_svc+0x78/0x1e0 [ 79.063953][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.064739][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.065656][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.067496][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.068629][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.070235][ T5013] Call trace: [ 79.070751][ T5013] dump_backtrace+0x0/0x43c [ 79.071473][ T5013] show_stack+0x2c/0x3c [ 79.072089][ T5013] __dump_stack+0x30/0x40 [ 79.072740][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.073441][ T5013] dump_stack+0x1c/0x5c [ 79.074091][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.074931][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.075656][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.076332][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.076977][ T5013] inet_sendmsg+0x154/0x284 [ 79.077683][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.078378][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.079126][ T5013] invoke_syscall+0x98/0x2b8 [ 79.079836][ T5013] el0_svc_common+0x138/0x258 [ 79.080547][ T5013] do_el0_svc+0x58/0x14c [ 79.081183][ T5013] el0_svc+0x78/0x1e0 [ 79.081773][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.082499][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.083437][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.085085][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.086090][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.087485][ T5013] Call trace: [ 79.087940][ T5013] dump_backtrace+0x0/0x43c [ 79.088545][ T5013] show_stack+0x2c/0x3c [ 79.089109][ T5013] __dump_stack+0x30/0x40 [ 79.089724][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.090335][ T5013] dump_stack+0x1c/0x5c [ 79.090878][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.091674][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.092354][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.093052][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.093770][ T5013] inet_sendmsg+0x154/0x284 [ 79.094485][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.095207][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.095950][ T5013] invoke_syscall+0x98/0x2b8 [ 79.096595][ T5013] el0_svc_common+0x138/0x258 [ 79.097415][ T5013] do_el0_svc+0x58/0x14c [ 79.098139][ T5013] el0_svc+0x78/0x1e0 [ 79.098732][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.099498][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.100317][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.101863][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.102982][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.104521][ T5013] Call trace: [ 79.105037][ T5013] dump_backtrace+0x0/0x43c [ 79.105757][ T5013] show_stack+0x2c/0x3c [ 79.106398][ T5013] __dump_stack+0x30/0x40 [ 79.107071][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.107779][ T5013] dump_stack+0x1c/0x5c [ 79.108410][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.109311][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.110119][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.110845][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.111544][ T5013] inet_sendmsg+0x154/0x284 [ 79.112172][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.112796][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.113548][ T5013] invoke_syscall+0x98/0x2b8 [ 79.114351][ T5013] el0_svc_common+0x138/0x258 [ 79.115145][ T5013] do_el0_svc+0x58/0x14c [ 79.115834][ T5013] el0_svc+0x78/0x1e0 [ 79.116446][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.117288][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.118220][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.119885][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.120985][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.122513][ T5013] Call trace: [ 79.123029][ T5013] dump_backtrace+0x0/0x43c [ 79.123805][ T5013] show_stack+0x2c/0x3c [ 79.124496][ T5013] __dump_stack+0x30/0x40 [ 79.125216][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.125962][ T5013] dump_stack+0x1c/0x5c [ 79.126625][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.127469][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.128246][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.128887][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.129598][ T5013] inet_sendmsg+0x154/0x284 [ 79.130344][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.131171][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.131930][ T5013] invoke_syscall+0x98/0x2b8 [ 79.132608][ T5013] el0_svc_common+0x138/0x258 [ 79.133370][ T5013] do_el0_svc+0x58/0x14c [ 79.133974][ T5013] el0_svc+0x78/0x1e0 [ 79.134614][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.135403][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.136227][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.137900][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.139018][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.140461][ T5013] Call trace: [ 79.140920][ T5013] dump_backtrace+0x0/0x43c [ 79.141565][ T5013] show_stack+0x2c/0x3c [ 79.142138][ T5013] __dump_stack+0x30/0x40 [ 79.142824][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.143529][ T5013] dump_stack+0x1c/0x5c [ 79.144198][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.145107][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.145900][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.146671][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.147461][ T5013] inet_sendmsg+0x154/0x284 [ 79.148165][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.148855][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.149712][ T5013] invoke_syscall+0x98/0x2b8 [ 79.150421][ T5013] el0_svc_common+0x138/0x258 [ 79.151120][ T5013] do_el0_svc+0x58/0x14c [ 79.151728][ T5013] el0_svc+0x78/0x1e0 [ 79.152298][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.153125][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.154022][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.155727][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.156914][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.158568][ T5013] Call trace: [ 79.159123][ T5013] dump_backtrace+0x0/0x43c [ 79.159863][ T5013] show_stack+0x2c/0x3c [ 79.160554][ T5013] __dump_stack+0x30/0x40 [ 79.161240][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.161931][ T5013] dump_stack+0x1c/0x5c [ 79.162613][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.163421][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.164187][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.164859][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.165525][ T5013] inet_sendmsg+0x154/0x284 [ 79.166284][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.166985][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.167757][ T5013] invoke_syscall+0x98/0x2b8 [ 79.168518][ T5013] el0_svc_common+0x138/0x258 [ 79.169245][ T5013] do_el0_svc+0x58/0x14c [ 79.169903][ T5013] el0_svc+0x78/0x1e0 [ 79.170477][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.171205][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.172028][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.173586][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.174766][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.176316][ T5013] Call trace: [ 79.176764][ T5013] dump_backtrace+0x0/0x43c [ 79.177408][ T5013] show_stack+0x2c/0x3c [ 79.178066][ T5013] __dump_stack+0x30/0x40 [ 79.178656][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.179292][ T5013] dump_stack+0x1c/0x5c [ 79.179901][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.180673][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.181358][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.182080][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.182823][ T5013] inet_sendmsg+0x154/0x284 [ 79.183585][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.184288][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.185031][ T5013] invoke_syscall+0x98/0x2b8 [ 79.185691][ T5013] el0_svc_common+0x138/0x258 [ 79.186433][ T5013] do_el0_svc+0x58/0x14c [ 79.187077][ T5013] el0_svc+0x78/0x1e0 [ 79.187662][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.188419][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.189224][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.190825][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.191978][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.193580][ T5013] Call trace: [ 79.194109][ T5013] dump_backtrace+0x0/0x43c [ 79.194864][ T5013] show_stack+0x2c/0x3c [ 79.195521][ T5013] __dump_stack+0x30/0x40 [ 79.196244][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.196951][ T5013] dump_stack+0x1c/0x5c [ 79.197614][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.198405][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.199141][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.199819][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.200525][ T5013] inet_sendmsg+0x154/0x284 [ 79.201214][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.201889][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.202630][ T5013] invoke_syscall+0x98/0x2b8 [ 79.203302][ T5013] el0_svc_common+0x138/0x258 [ 79.204020][ T5013] do_el0_svc+0x58/0x14c [ 79.204720][ T5013] el0_svc+0x78/0x1e0 [ 79.205275][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.206000][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.206784][ T5013] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.208306][ T5013] CPU: 1 PID: 5013 Comm: syz.0.28 Not tainted syzkaller #0 [ 79.209267][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.210663][ T5013] Call trace: [ 79.211155][ T5013] dump_backtrace+0x0/0x43c [ 79.211787][ T5013] show_stack+0x2c/0x3c [ 79.212372][ T5013] __dump_stack+0x30/0x40 [ 79.213031][ T5013] dump_stack_lvl+0xf8/0x160 [ 79.213719][ T5013] dump_stack+0x1c/0x5c [ 79.214391][ T5013] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.215293][ T5013] dccp_xmit_packet+0x298/0x448 [ 79.216057][ T5013] dccp_write_xmit+0x118/0x1d0 [ 79.216732][ T5013] dccp_sendmsg+0x538/0x8a8 [ 79.217477][ T5013] inet_sendmsg+0x154/0x284 [ 79.218149][ T5013] __sys_sendto+0x2e8/0x3d8 [ 79.218852][ T5013] __arm64_sys_sendto+0xd8/0xf8 [ 79.219630][ T5013] invoke_syscall+0x98/0x2b8 [ 79.220373][ T5013] el0_svc_common+0x138/0x258 [ 79.221162][ T5013] do_el0_svc+0x58/0x14c [ 79.221841][ T5013] el0_svc+0x78/0x1e0 [ 79.222473][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 79.223239][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 79.255504][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.257340][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.258379][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.259777][ T5017] Call trace: [ 79.260254][ T5017] dump_backtrace+0x0/0x43c [ 79.260900][ T5017] show_stack+0x2c/0x3c [ 79.261575][ T5017] __dump_stack+0x30/0x40 [ 79.262244][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.262999][ T5017] dump_stack+0x1c/0x5c [ 79.263675][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.264577][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.265347][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.266071][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.266720][ T5017] inet_sendmsg+0x154/0x284 [ 79.267374][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.268053][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.268722][ T5017] invoke_syscall+0x98/0x2b8 [ 79.269379][ T5017] el0_svc_common+0x138/0x258 [ 79.270057][ T5017] do_el0_svc+0x58/0x14c [ 79.270642][ T5017] el0_svc+0x78/0x1e0 [ 79.271198][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.271890][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.273978][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.275686][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.276832][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.278360][ T5017] Call trace: [ 79.278829][ T5017] dump_backtrace+0x0/0x43c [ 79.279464][ T5017] show_stack+0x2c/0x3c [ 79.280020][ T5017] __dump_stack+0x30/0x40 [ 79.280601][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.281238][ T5017] dump_stack+0x1c/0x5c [ 79.281820][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.282765][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.283573][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.284361][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.285132][ T5017] inet_sendmsg+0x154/0x284 [ 79.285836][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.286518][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.287263][ T5017] invoke_syscall+0x98/0x2b8 [ 79.287893][ T5017] el0_svc_common+0x138/0x258 [ 79.288560][ T5017] do_el0_svc+0x58/0x14c [ 79.289212][ T5017] el0_svc+0x78/0x1e0 [ 79.289802][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.290607][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.291712][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.293307][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.294285][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.295582][ T5017] Call trace: [ 79.296007][ T5017] dump_backtrace+0x0/0x43c [ 79.296800][ T5017] show_stack+0x2c/0x3c [ 79.297465][ T5017] __dump_stack+0x30/0x40 [ 79.298173][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.298909][ T5017] dump_stack+0x1c/0x5c [ 79.299547][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.300422][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.301148][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.301909][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.302599][ T5017] inet_sendmsg+0x154/0x284 [ 79.303253][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.303953][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.304746][ T5017] invoke_syscall+0x98/0x2b8 [ 79.305518][ T5017] el0_svc_common+0x138/0x258 [ 79.306202][ T5017] do_el0_svc+0x58/0x14c [ 79.306925][ T5017] el0_svc+0x78/0x1e0 [ 79.307590][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.308418][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.309334][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.311113][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.312204][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.313814][ T5017] Call trace: [ 79.314296][ T5017] dump_backtrace+0x0/0x43c [ 79.314986][ T5017] show_stack+0x2c/0x3c [ 79.315642][ T5017] __dump_stack+0x30/0x40 [ 79.316302][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.317009][ T5017] dump_stack+0x1c/0x5c [ 79.317597][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.318399][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.319153][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.319966][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.320675][ T5017] inet_sendmsg+0x154/0x284 [ 79.321427][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.322098][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.322831][ T5017] invoke_syscall+0x98/0x2b8 [ 79.323514][ T5017] el0_svc_common+0x138/0x258 [ 79.324264][ T5017] do_el0_svc+0x58/0x14c [ 79.324927][ T5017] el0_svc+0x78/0x1e0 [ 79.325556][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.326321][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.327202][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.329002][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.330170][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.331707][ T5017] Call trace: [ 79.332213][ T5017] dump_backtrace+0x0/0x43c [ 79.332945][ T5017] show_stack+0x2c/0x3c [ 79.333637][ T5017] __dump_stack+0x30/0x40 [ 79.334294][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.335019][ T5017] dump_stack+0x1c/0x5c [ 79.335649][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.336521][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.337324][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.338030][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.338722][ T5017] inet_sendmsg+0x154/0x284 [ 79.339370][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.340023][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.340808][ T5017] invoke_syscall+0x98/0x2b8 [ 79.341541][ T5017] el0_svc_common+0x138/0x258 [ 79.342267][ T5017] do_el0_svc+0x58/0x14c [ 79.342969][ T5017] el0_svc+0x78/0x1e0 [ 79.343602][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.344416][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.345246][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.346859][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.347858][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.349280][ T5017] Call trace: [ 79.349750][ T5017] dump_backtrace+0x0/0x43c [ 79.350418][ T5017] show_stack+0x2c/0x3c [ 79.351069][ T5017] __dump_stack+0x30/0x40 [ 79.351728][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.352503][ T5017] dump_stack+0x1c/0x5c [ 79.353178][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.354037][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.354818][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.355547][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.356254][ T5017] inet_sendmsg+0x154/0x284 [ 79.356987][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.357670][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.358425][ T5017] invoke_syscall+0x98/0x2b8 [ 79.359160][ T5017] el0_svc_common+0x138/0x258 [ 79.359925][ T5017] do_el0_svc+0x58/0x14c [ 79.360612][ T5017] el0_svc+0x78/0x1e0 [ 79.361234][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.362024][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.363086][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.364663][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.365755][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.367310][ T5017] Call trace: [ 79.367835][ T5017] dump_backtrace+0x0/0x43c [ 79.368520][ T5017] show_stack+0x2c/0x3c [ 79.369097][ T5017] __dump_stack+0x30/0x40 [ 79.369780][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.370409][ T5017] dump_stack+0x1c/0x5c [ 79.371013][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.371866][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.372682][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.373425][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.374150][ T5017] inet_sendmsg+0x154/0x284 [ 79.374828][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.375581][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.376329][ T5017] invoke_syscall+0x98/0x2b8 [ 79.377045][ T5017] el0_svc_common+0x138/0x258 [ 79.377778][ T5017] do_el0_svc+0x58/0x14c [ 79.378429][ T5017] el0_svc+0x78/0x1e0 [ 79.379126][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.379896][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.380980][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.382590][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.383648][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.385101][ T5017] Call trace: [ 79.385561][ T5017] dump_backtrace+0x0/0x43c [ 79.386237][ T5017] show_stack+0x2c/0x3c [ 79.386855][ T5017] __dump_stack+0x30/0x40 [ 79.387486][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.388127][ T5017] dump_stack+0x1c/0x5c [ 79.388749][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.389562][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.390359][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.391094][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.391839][ T5017] inet_sendmsg+0x154/0x284 [ 79.392575][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.393298][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.394075][ T5017] invoke_syscall+0x98/0x2b8 [ 79.394780][ T5017] el0_svc_common+0x138/0x258 [ 79.395475][ T5017] do_el0_svc+0x58/0x14c [ 79.396117][ T5017] el0_svc+0x78/0x1e0 [ 79.396704][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.397458][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.398293][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.399794][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.400911][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.402613][ T5017] Call trace: [ 79.403120][ T5017] dump_backtrace+0x0/0x43c [ 79.403829][ T5017] show_stack+0x2c/0x3c [ 79.404497][ T5017] __dump_stack+0x30/0x40 [ 79.405159][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.405797][ T5017] dump_stack+0x1c/0x5c [ 79.406407][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.407241][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.407917][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.408596][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.409246][ T5017] inet_sendmsg+0x154/0x284 [ 79.409921][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.410617][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.411347][ T5017] invoke_syscall+0x98/0x2b8 [ 79.412061][ T5017] el0_svc_common+0x138/0x258 [ 79.412782][ T5017] do_el0_svc+0x58/0x14c [ 79.413445][ T5017] el0_svc+0x78/0x1e0 [ 79.414008][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.414700][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.415577][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.417177][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.418095][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.419610][ T5017] Call trace: [ 79.420085][ T5017] dump_backtrace+0x0/0x43c [ 79.420767][ T5017] show_stack+0x2c/0x3c [ 79.421373][ T5017] __dump_stack+0x30/0x40 [ 79.422010][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.422708][ T5017] dump_stack+0x1c/0x5c [ 79.423383][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.424211][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.425018][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.425818][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.426547][ T5017] inet_sendmsg+0x154/0x284 [ 79.427270][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.427968][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.428713][ T5017] invoke_syscall+0x98/0x2b8 [ 79.429386][ T5017] el0_svc_common+0x138/0x258 [ 79.430077][ T5017] do_el0_svc+0x58/0x14c [ 79.430659][ T5017] el0_svc+0x78/0x1e0 [ 79.431263][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.432000][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.432889][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.434464][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.435507][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.436955][ T5017] Call trace: [ 79.437381][ T5017] dump_backtrace+0x0/0x43c [ 79.437969][ T5017] show_stack+0x2c/0x3c [ 79.438586][ T5017] __dump_stack+0x30/0x40 [ 79.439259][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.439916][ T5017] dump_stack+0x1c/0x5c [ 79.440546][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.441351][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.442086][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.442852][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.443581][ T5017] inet_sendmsg+0x154/0x284 [ 79.444291][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.445013][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.445803][ T5017] invoke_syscall+0x98/0x2b8 [ 79.446548][ T5017] el0_svc_common+0x138/0x258 [ 79.447260][ T5017] do_el0_svc+0x58/0x14c [ 79.447952][ T5017] el0_svc+0x78/0x1e0 [ 79.448608][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.449386][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.450212][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.451911][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.452933][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.454417][ T5017] Call trace: [ 79.454889][ T5017] dump_backtrace+0x0/0x43c [ 79.455494][ T5017] show_stack+0x2c/0x3c [ 79.456075][ T5017] __dump_stack+0x30/0x40 [ 79.456755][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.457443][ T5017] dump_stack+0x1c/0x5c [ 79.458040][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.458812][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.459557][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.460300][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.460949][ T5017] inet_sendmsg+0x154/0x284 [ 79.461660][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.462345][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.463010][ T5017] invoke_syscall+0x98/0x2b8 [ 79.463636][ T5017] el0_svc_common+0x138/0x258 [ 79.464308][ T5017] do_el0_svc+0x58/0x14c [ 79.464910][ T5017] el0_svc+0x78/0x1e0 [ 79.465448][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.466195][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.467036][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.468666][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.469778][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.471344][ T5017] Call trace: [ 79.471868][ T5017] dump_backtrace+0x0/0x43c [ 79.472646][ T5017] show_stack+0x2c/0x3c [ 79.473296][ T5017] __dump_stack+0x30/0x40 [ 79.474014][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.474695][ T5017] dump_stack+0x1c/0x5c [ 79.475275][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.476128][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.476870][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.477521][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.478229][ T5017] inet_sendmsg+0x154/0x284 [ 79.478919][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.479588][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.480316][ T5017] invoke_syscall+0x98/0x2b8 [ 79.481007][ T5017] el0_svc_common+0x138/0x258 [ 79.481753][ T5017] do_el0_svc+0x58/0x14c [ 79.482418][ T5017] el0_svc+0x78/0x1e0 [ 79.483067][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.483784][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.484586][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.485998][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.487018][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.488489][ T5017] Call trace: [ 79.489034][ T5017] dump_backtrace+0x0/0x43c [ 79.489712][ T5017] show_stack+0x2c/0x3c [ 79.490399][ T5017] __dump_stack+0x30/0x40 [ 79.491113][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.491825][ T5017] dump_stack+0x1c/0x5c [ 79.492442][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.493316][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.494094][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.494869][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.495607][ T5017] inet_sendmsg+0x154/0x284 [ 79.496273][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.496913][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.497689][ T5017] invoke_syscall+0x98/0x2b8 [ 79.498444][ T5017] el0_svc_common+0x138/0x258 [ 79.499245][ T5017] do_el0_svc+0x58/0x14c [ 79.499901][ T5017] el0_svc+0x78/0x1e0 [ 79.500502][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.501283][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.502183][ T5017] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.503905][ T5017] CPU: 1 PID: 5017 Comm: syz.0.30 Not tainted syzkaller #0 [ 79.504959][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.506354][ T5017] Call trace: [ 79.506834][ T5017] dump_backtrace+0x0/0x43c [ 79.507455][ T5017] show_stack+0x2c/0x3c [ 79.508049][ T5017] __dump_stack+0x30/0x40 [ 79.508649][ T5017] dump_stack_lvl+0xf8/0x160 [ 79.509280][ T5017] dump_stack+0x1c/0x5c [ 79.509911][ T5017] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.510680][ T5017] dccp_xmit_packet+0x298/0x448 [ 79.511348][ T5017] dccp_write_xmit+0x118/0x1d0 [ 79.512002][ T5017] dccp_sendmsg+0x538/0x8a8 [ 79.512677][ T5017] inet_sendmsg+0x154/0x284 [ 79.513367][ T5017] __sys_sendto+0x2e8/0x3d8 [ 79.514034][ T5017] __arm64_sys_sendto+0xd8/0xf8 [ 79.514749][ T5017] invoke_syscall+0x98/0x2b8 [ 79.515487][ T5017] el0_svc_common+0x138/0x258 [ 79.516240][ T5017] do_el0_svc+0x58/0x14c [ 79.516912][ T5017] el0_svc+0x78/0x1e0 [ 79.517520][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 79.518310][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 79.534715][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.536540][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.537594][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.539024][ T5019] Call trace: [ 79.539492][ T5019] dump_backtrace+0x0/0x43c [ 79.540159][ T5019] show_stack+0x2c/0x3c [ 79.540780][ T5019] __dump_stack+0x30/0x40 [ 79.541437][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.542097][ T5019] dump_stack+0x1c/0x5c [ 79.542697][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.543465][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.544144][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.544935][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.545584][ T5019] inet_sendmsg+0x154/0x284 [ 79.546227][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.546898][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.547622][ T5019] invoke_syscall+0x98/0x2b8 [ 79.548272][ T5019] el0_svc_common+0x138/0x258 [ 79.549014][ T5019] do_el0_svc+0x58/0x14c [ 79.549629][ T5019] el0_svc+0x78/0x1e0 [ 79.550218][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.551021][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.552003][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.553522][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.554486][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.555955][ T5019] Call trace: [ 79.556403][ T5019] dump_backtrace+0x0/0x43c [ 79.557144][ T5019] show_stack+0x2c/0x3c [ 79.557792][ T5019] __dump_stack+0x30/0x40 [ 79.558375][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.559014][ T5019] dump_stack+0x1c/0x5c [ 79.559567][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.560282][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.560929][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.561630][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.562337][ T5019] inet_sendmsg+0x154/0x284 [ 79.563051][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.563727][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.564493][ T5019] invoke_syscall+0x98/0x2b8 [ 79.565221][ T5019] el0_svc_common+0x138/0x258 [ 79.565960][ T5019] do_el0_svc+0x58/0x14c [ 79.566646][ T5019] el0_svc+0x78/0x1e0 [ 79.567294][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.568101][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.569144][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.570857][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.571945][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.573659][ T5019] Call trace: [ 79.574192][ T5019] dump_backtrace+0x0/0x43c [ 79.574964][ T5019] show_stack+0x2c/0x3c [ 79.575684][ T5019] __dump_stack+0x30/0x40 [ 79.576374][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.577092][ T5019] dump_stack+0x1c/0x5c [ 79.577756][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.578579][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.579259][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.579925][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.580617][ T5019] inet_sendmsg+0x154/0x284 [ 79.581336][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.581991][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.582708][ T5019] invoke_syscall+0x98/0x2b8 [ 79.583377][ T5019] el0_svc_common+0x138/0x258 [ 79.584174][ T5019] do_el0_svc+0x58/0x14c [ 79.584879][ T5019] el0_svc+0x78/0x1e0 [ 79.585570][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.586434][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.587576][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.589268][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.590322][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.591887][ T5019] Call trace: [ 79.592427][ T5019] dump_backtrace+0x0/0x43c [ 79.593106][ T5019] show_stack+0x2c/0x3c [ 79.593707][ T5019] __dump_stack+0x30/0x40 [ 79.594324][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.594964][ T5019] dump_stack+0x1c/0x5c [ 79.595539][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.596338][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.597052][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.597702][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.598426][ T5019] inet_sendmsg+0x154/0x284 [ 79.599165][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.599869][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.600608][ T5019] invoke_syscall+0x98/0x2b8 [ 79.601351][ T5019] el0_svc_common+0x138/0x258 [ 79.602130][ T5019] do_el0_svc+0x58/0x14c [ 79.602809][ T5019] el0_svc+0x78/0x1e0 [ 79.603432][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.604255][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.605174][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.606954][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.608071][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.609586][ T5019] Call trace: [ 79.610063][ T5019] dump_backtrace+0x0/0x43c [ 79.610758][ T5019] show_stack+0x2c/0x3c [ 79.611373][ T5019] __dump_stack+0x30/0x40 [ 79.612047][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.612774][ T5019] dump_stack+0x1c/0x5c [ 79.613417][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.614248][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.614993][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.615723][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.616392][ T5019] inet_sendmsg+0x154/0x284 [ 79.617165][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.617850][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.618661][ T5019] invoke_syscall+0x98/0x2b8 [ 79.619361][ T5019] el0_svc_common+0x138/0x258 [ 79.620009][ T5019] do_el0_svc+0x58/0x14c [ 79.620696][ T5019] el0_svc+0x78/0x1e0 [ 79.621331][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.622133][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.623148][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.624793][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.625946][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.627493][ T5019] Call trace: [ 79.627982][ T5019] dump_backtrace+0x0/0x43c [ 79.628670][ T5019] show_stack+0x2c/0x3c [ 79.629355][ T5019] __dump_stack+0x30/0x40 [ 79.630044][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.630734][ T5019] dump_stack+0x1c/0x5c [ 79.631356][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.632074][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.632891][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.633694][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.634418][ T5019] inet_sendmsg+0x154/0x284 [ 79.635100][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.635783][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.636464][ T5019] invoke_syscall+0x98/0x2b8 [ 79.637223][ T5019] el0_svc_common+0x138/0x258 [ 79.637967][ T5019] do_el0_svc+0x58/0x14c [ 79.638678][ T5019] el0_svc+0x78/0x1e0 [ 79.639307][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.640107][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.641097][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.642951][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.643981][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.645502][ T5019] Call trace: [ 79.646036][ T5019] dump_backtrace+0x0/0x43c [ 79.646677][ T5019] show_stack+0x2c/0x3c [ 79.647339][ T5019] __dump_stack+0x30/0x40 [ 79.648071][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.648793][ T5019] dump_stack+0x1c/0x5c [ 79.649437][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.650270][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.651036][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.651775][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.652436][ T5019] inet_sendmsg+0x154/0x284 [ 79.653121][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.653753][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.654523][ T5019] invoke_syscall+0x98/0x2b8 [ 79.655206][ T5019] el0_svc_common+0x138/0x258 [ 79.655951][ T5019] do_el0_svc+0x58/0x14c [ 79.656640][ T5019] el0_svc+0x78/0x1e0 [ 79.657304][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.658083][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.659017][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.660556][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.661611][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.663092][ T5019] Call trace: [ 79.663577][ T5019] dump_backtrace+0x0/0x43c [ 79.664248][ T5019] show_stack+0x2c/0x3c [ 79.664938][ T5019] __dump_stack+0x30/0x40 [ 79.665605][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.666315][ T5019] dump_stack+0x1c/0x5c [ 79.666915][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.667791][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.668522][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.669241][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.669986][ T5019] inet_sendmsg+0x154/0x284 [ 79.670634][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.671268][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.671943][ T5019] invoke_syscall+0x98/0x2b8 [ 79.672618][ T5019] el0_svc_common+0x138/0x258 [ 79.673296][ T5019] do_el0_svc+0x58/0x14c [ 79.673986][ T5019] el0_svc+0x78/0x1e0 [ 79.674651][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.675426][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.676276][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.677947][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.679049][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.680635][ T5019] Call trace: [ 79.681127][ T5019] dump_backtrace+0x0/0x43c [ 79.681811][ T5019] show_stack+0x2c/0x3c [ 79.682451][ T5019] __dump_stack+0x30/0x40 [ 79.683112][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.683832][ T5019] dump_stack+0x1c/0x5c [ 79.684472][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.685324][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.686069][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.686887][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.687621][ T5019] inet_sendmsg+0x154/0x284 [ 79.688281][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.688936][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.689699][ T5019] invoke_syscall+0x98/0x2b8 [ 79.690345][ T5019] el0_svc_common+0x138/0x258 [ 79.691023][ T5019] do_el0_svc+0x58/0x14c [ 79.691623][ T5019] el0_svc+0x78/0x1e0 [ 79.692160][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.692874][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.693934][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.695538][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.696550][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.697961][ T5019] Call trace: [ 79.698417][ T5019] dump_backtrace+0x0/0x43c [ 79.699067][ T5019] show_stack+0x2c/0x3c [ 79.699659][ T5019] __dump_stack+0x30/0x40 [ 79.700295][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.700945][ T5019] dump_stack+0x1c/0x5c [ 79.701590][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.702363][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.703078][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.703824][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.704464][ T5019] inet_sendmsg+0x154/0x284 [ 79.705125][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.705777][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.706452][ T5019] invoke_syscall+0x98/0x2b8 [ 79.707145][ T5019] el0_svc_common+0x138/0x258 [ 79.707884][ T5019] do_el0_svc+0x58/0x14c [ 79.708485][ T5019] el0_svc+0x78/0x1e0 [ 79.709115][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.709889][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.710741][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.712409][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.713532][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.715089][ T5019] Call trace: [ 79.715604][ T5019] dump_backtrace+0x0/0x43c [ 79.716308][ T5019] show_stack+0x2c/0x3c [ 79.716924][ T5019] __dump_stack+0x30/0x40 [ 79.717560][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.718284][ T5019] dump_stack+0x1c/0x5c [ 79.718865][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.719760][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.720561][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.721258][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.721990][ T5019] inet_sendmsg+0x154/0x284 [ 79.722687][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.723418][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.724160][ T5019] invoke_syscall+0x98/0x2b8 [ 79.724865][ T5019] el0_svc_common+0x138/0x258 [ 79.725613][ T5019] do_el0_svc+0x58/0x14c [ 79.726281][ T5019] el0_svc+0x78/0x1e0 [ 79.726889][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.727685][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.728541][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.730234][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.731233][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.732951][ T5019] Call trace: [ 79.733485][ T5019] dump_backtrace+0x0/0x43c [ 79.734207][ T5019] show_stack+0x2c/0x3c [ 79.734865][ T5019] __dump_stack+0x30/0x40 [ 79.735554][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.736282][ T5019] dump_stack+0x1c/0x5c [ 79.736882][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.737741][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.738491][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.739236][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.739849][ T5019] inet_sendmsg+0x154/0x284 [ 79.740569][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.741235][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.741975][ T5019] invoke_syscall+0x98/0x2b8 [ 79.742678][ T5019] el0_svc_common+0x138/0x258 [ 79.743403][ T5019] do_el0_svc+0x58/0x14c [ 79.744068][ T5019] el0_svc+0x78/0x1e0 [ 79.744688][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.745426][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.746265][ T5019] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.747800][ T5019] CPU: 1 PID: 5019 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.748924][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.750378][ T5019] Call trace: [ 79.750848][ T5019] dump_backtrace+0x0/0x43c [ 79.751480][ T5019] show_stack+0x2c/0x3c [ 79.752089][ T5019] __dump_stack+0x30/0x40 [ 79.752675][ T5019] dump_stack_lvl+0xf8/0x160 [ 79.753334][ T5019] dump_stack+0x1c/0x5c [ 79.753926][ T5019] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.754759][ T5019] dccp_xmit_packet+0x298/0x448 [ 79.755457][ T5019] dccp_write_xmit+0x118/0x1d0 [ 79.756201][ T5019] dccp_sendmsg+0x538/0x8a8 [ 79.756921][ T5019] inet_sendmsg+0x154/0x284 [ 79.757601][ T5019] __sys_sendto+0x2e8/0x3d8 [ 79.758268][ T5019] __arm64_sys_sendto+0xd8/0xf8 [ 79.759011][ T5019] invoke_syscall+0x98/0x2b8 [ 79.759712][ T5019] el0_svc_common+0x138/0x258 [ 79.760406][ T5019] do_el0_svc+0x58/0x14c [ 79.761157][ T5019] el0_svc+0x78/0x1e0 [ 79.761845][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 79.762592][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 79.793081][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.794666][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.795741][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.797353][ T5021] Call trace: [ 79.797857][ T5021] dump_backtrace+0x0/0x43c [ 79.798579][ T5021] show_stack+0x2c/0x3c [ 79.799229][ T5021] __dump_stack+0x30/0x40 [ 79.799837][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.800515][ T5021] dump_stack+0x1c/0x5c [ 79.801097][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.801876][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.802570][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.803271][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.803967][ T5021] inet_sendmsg+0x154/0x284 [ 79.804665][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.805359][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.806111][ T5021] invoke_syscall+0x98/0x2b8 [ 79.806801][ T5021] el0_svc_common+0x138/0x258 [ 79.807496][ T5021] do_el0_svc+0x58/0x14c [ 79.808085][ T5021] el0_svc+0x78/0x1e0 [ 79.808656][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.809399][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.811336][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.813864][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.814962][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.816342][ T5021] Call trace: [ 79.816816][ T5021] dump_backtrace+0x0/0x43c [ 79.817486][ T5021] show_stack+0x2c/0x3c [ 79.818066][ T5021] __dump_stack+0x30/0x40 [ 79.818675][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.819324][ T5021] dump_stack+0x1c/0x5c [ 79.819921][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.820697][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.821351][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.822018][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.822744][ T5021] inet_sendmsg+0x154/0x284 [ 79.823412][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.824084][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.824840][ T5021] invoke_syscall+0x98/0x2b8 [ 79.825544][ T5021] el0_svc_common+0x138/0x258 [ 79.826303][ T5021] do_el0_svc+0x58/0x14c [ 79.826939][ T5021] el0_svc+0x78/0x1e0 [ 79.827532][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.828247][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.830633][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.832920][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.833933][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.835339][ T5021] Call trace: [ 79.835830][ T5021] dump_backtrace+0x0/0x43c [ 79.836447][ T5021] show_stack+0x2c/0x3c [ 79.837082][ T5021] __dump_stack+0x30/0x40 [ 79.837743][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.838453][ T5021] dump_stack+0x1c/0x5c [ 79.839062][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.839842][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.840615][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.841363][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.842034][ T5021] inet_sendmsg+0x154/0x284 [ 79.842715][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.843395][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.844160][ T5021] invoke_syscall+0x98/0x2b8 [ 79.844856][ T5021] el0_svc_common+0x138/0x258 [ 79.845627][ T5021] do_el0_svc+0x58/0x14c [ 79.846324][ T5021] el0_svc+0x78/0x1e0 [ 79.846971][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.847794][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.849365][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.851303][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.852423][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.854032][ T5021] Call trace: [ 79.854551][ T5021] dump_backtrace+0x0/0x43c [ 79.855262][ T5021] show_stack+0x2c/0x3c [ 79.855971][ T5021] __dump_stack+0x30/0x40 [ 79.856677][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.857438][ T5021] dump_stack+0x1c/0x5c [ 79.858064][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.858945][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.859736][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.860488][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.861199][ T5021] inet_sendmsg+0x154/0x284 [ 79.861863][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.862529][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.863267][ T5021] invoke_syscall+0x98/0x2b8 [ 79.864010][ T5021] el0_svc_common+0x138/0x258 [ 79.864772][ T5021] do_el0_svc+0x58/0x14c [ 79.865476][ T5021] el0_svc+0x78/0x1e0 [ 79.866219][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.867104][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.868349][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.870031][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.871152][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.872798][ T5021] Call trace: [ 79.873375][ T5021] dump_backtrace+0x0/0x43c [ 79.874103][ T5021] show_stack+0x2c/0x3c [ 79.874805][ T5021] __dump_stack+0x30/0x40 [ 79.875577][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.876323][ T5021] dump_stack+0x1c/0x5c [ 79.877016][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.877884][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.878637][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.879352][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.880035][ T5021] inet_sendmsg+0x154/0x284 [ 79.880701][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.881344][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.882080][ T5021] invoke_syscall+0x98/0x2b8 [ 79.882692][ T5021] el0_svc_common+0x138/0x258 [ 79.883393][ T5021] do_el0_svc+0x58/0x14c [ 79.884073][ T5021] el0_svc+0x78/0x1e0 [ 79.884656][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.885438][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.886790][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.888536][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.889549][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.891166][ T5021] Call trace: [ 79.891648][ T5021] dump_backtrace+0x0/0x43c [ 79.892356][ T5021] show_stack+0x2c/0x3c [ 79.893046][ T5021] __dump_stack+0x30/0x40 [ 79.893693][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.894376][ T5021] dump_stack+0x1c/0x5c [ 79.895017][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.895906][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.896694][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.897490][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.898188][ T5021] inet_sendmsg+0x154/0x284 [ 79.898979][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.899737][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.900533][ T5021] invoke_syscall+0x98/0x2b8 [ 79.901321][ T5021] el0_svc_common+0x138/0x258 [ 79.902091][ T5021] do_el0_svc+0x58/0x14c [ 79.902753][ T5021] el0_svc+0x78/0x1e0 [ 79.903330][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.904170][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.905164][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.906917][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.907973][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.909426][ T5021] Call trace: [ 79.909913][ T5021] dump_backtrace+0x0/0x43c [ 79.910527][ T5021] show_stack+0x2c/0x3c [ 79.911156][ T5021] __dump_stack+0x30/0x40 [ 79.911774][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.912487][ T5021] dump_stack+0x1c/0x5c [ 79.913163][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.914025][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.914734][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.915458][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.916155][ T5021] inet_sendmsg+0x154/0x284 [ 79.916850][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.917560][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.918280][ T5021] invoke_syscall+0x98/0x2b8 [ 79.918961][ T5021] el0_svc_common+0x138/0x258 [ 79.919705][ T5021] do_el0_svc+0x58/0x14c [ 79.920309][ T5021] el0_svc+0x78/0x1e0 [ 79.920967][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.921764][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.922889][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.924589][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.925658][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.927305][ T5021] Call trace: [ 79.927821][ T5021] dump_backtrace+0x0/0x43c [ 79.928482][ T5021] show_stack+0x2c/0x3c [ 79.929105][ T5021] __dump_stack+0x30/0x40 [ 79.929732][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.930440][ T5021] dump_stack+0x1c/0x5c [ 79.931055][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.931812][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.932571][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.933302][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.933952][ T5021] inet_sendmsg+0x154/0x284 [ 79.934668][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.935459][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.936224][ T5021] invoke_syscall+0x98/0x2b8 [ 79.936948][ T5021] el0_svc_common+0x138/0x258 [ 79.937742][ T5021] do_el0_svc+0x58/0x14c [ 79.938395][ T5021] el0_svc+0x78/0x1e0 [ 79.939034][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.939905][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.941053][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.942951][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.944127][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.945799][ T5021] Call trace: [ 79.946276][ T5021] dump_backtrace+0x0/0x43c [ 79.947016][ T5021] show_stack+0x2c/0x3c [ 79.947678][ T5021] __dump_stack+0x30/0x40 [ 79.948302][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.949206][ T5021] dump_stack+0x1c/0x5c [ 79.949913][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.950805][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.951615][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.952441][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.953198][ T5021] inet_sendmsg+0x154/0x284 [ 79.953914][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.954609][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.955377][ T5021] invoke_syscall+0x98/0x2b8 [ 79.956171][ T5021] el0_svc_common+0x138/0x258 [ 79.957027][ T5021] do_el0_svc+0x58/0x14c [ 79.957713][ T5021] el0_svc+0x78/0x1e0 [ 79.958299][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.959152][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.960228][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.961853][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.963009][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.964624][ T5021] Call trace: [ 79.965123][ T5021] dump_backtrace+0x0/0x43c [ 79.965811][ T5021] show_stack+0x2c/0x3c [ 79.966427][ T5021] __dump_stack+0x30/0x40 [ 79.967079][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.967753][ T5021] dump_stack+0x1c/0x5c [ 79.968313][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.969086][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.969795][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.970569][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.971321][ T5021] inet_sendmsg+0x154/0x284 [ 79.972080][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.972820][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.973642][ T5021] invoke_syscall+0x98/0x2b8 [ 79.974368][ T5021] el0_svc_common+0x138/0x258 [ 79.975096][ T5021] do_el0_svc+0x58/0x14c [ 79.975770][ T5021] el0_svc+0x78/0x1e0 [ 79.976397][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.977229][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.978226][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.980026][ T5021] CPU: 0 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.981075][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.982497][ T5021] Call trace: [ 79.982968][ T5021] dump_backtrace+0x0/0x43c [ 79.983623][ T5021] show_stack+0x2c/0x3c [ 79.984241][ T5021] __dump_stack+0x30/0x40 [ 79.984860][ T5021] dump_stack_lvl+0xf8/0x160 [ 79.985526][ T5021] dump_stack+0x1c/0x5c [ 79.986181][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.986965][ T5021] dccp_xmit_packet+0x298/0x448 [ 79.987706][ T5021] dccp_write_xmit+0x118/0x1d0 [ 79.988398][ T5021] dccp_sendmsg+0x538/0x8a8 [ 79.989067][ T5021] inet_sendmsg+0x154/0x284 [ 79.989766][ T5021] __sys_sendto+0x2e8/0x3d8 [ 79.990435][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 79.991220][ T5021] invoke_syscall+0x98/0x2b8 [ 79.991935][ T5021] el0_svc_common+0x138/0x258 [ 79.992625][ T5021] do_el0_svc+0x58/0x14c [ 79.993267][ T5021] el0_svc+0x78/0x1e0 [ 79.993890][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 79.994629][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 79.996638][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.998414][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.999512][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.001006][ T5021] Call trace: [ 80.001510][ T5021] dump_backtrace+0x0/0x43c [ 80.002203][ T5021] show_stack+0x2c/0x3c [ 80.002825][ T5021] __dump_stack+0x30/0x40 [ 80.003514][ T5021] dump_stack_lvl+0xf8/0x160 [ 80.004160][ T5021] dump_stack+0x1c/0x5c [ 80.004756][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.005598][ T5021] dccp_xmit_packet+0x298/0x448 [ 80.006331][ T5021] dccp_write_xmit+0x118/0x1d0 [ 80.007116][ T5021] dccp_sendmsg+0x538/0x8a8 [ 80.007853][ T5021] inet_sendmsg+0x154/0x284 [ 80.008632][ T5021] __sys_sendto+0x2e8/0x3d8 [ 80.009409][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 80.010160][ T5021] invoke_syscall+0x98/0x2b8 [ 80.010849][ T5021] el0_svc_common+0x138/0x258 [ 80.011554][ T5021] do_el0_svc+0x58/0x14c [ 80.012218][ T5021] el0_svc+0x78/0x1e0 [ 80.012808][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 80.013619][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 80.016180][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.017908][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 80.018878][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.020401][ T5021] Call trace: [ 80.020929][ T5021] dump_backtrace+0x0/0x43c [ 80.021607][ T5021] show_stack+0x2c/0x3c [ 80.022301][ T5021] __dump_stack+0x30/0x40 [ 80.023040][ T5021] dump_stack_lvl+0xf8/0x160 [ 80.023800][ T5021] dump_stack+0x1c/0x5c [ 80.024518][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.025362][ T5021] dccp_xmit_packet+0x298/0x448 [ 80.026109][ T5021] dccp_write_xmit+0x118/0x1d0 [ 80.026865][ T5021] dccp_sendmsg+0x538/0x8a8 [ 80.027524][ T5021] inet_sendmsg+0x154/0x284 [ 80.028265][ T5021] __sys_sendto+0x2e8/0x3d8 [ 80.029034][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 80.029907][ T5021] invoke_syscall+0x98/0x2b8 [ 80.030633][ T5021] el0_svc_common+0x138/0x258 [ 80.031342][ T5021] do_el0_svc+0x58/0x14c [ 80.031952][ T5021] el0_svc+0x78/0x1e0 [ 80.032573][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 80.033431][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 80.035885][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.037706][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 80.038729][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.040293][ T5021] Call trace: [ 80.040800][ T5021] dump_backtrace+0x0/0x43c [ 80.041480][ T5021] show_stack+0x2c/0x3c [ 80.042084][ T5021] __dump_stack+0x30/0x40 [ 80.042739][ T5021] dump_stack_lvl+0xf8/0x160 [ 80.043419][ T5021] dump_stack+0x1c/0x5c [ 80.044076][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.044838][ T5021] dccp_xmit_packet+0x298/0x448 [ 80.045571][ T5021] dccp_write_xmit+0x118/0x1d0 [ 80.046269][ T5021] dccp_sendmsg+0x538/0x8a8 [ 80.046925][ T5021] inet_sendmsg+0x154/0x284 [ 80.047599][ T5021] __sys_sendto+0x2e8/0x3d8 [ 80.048262][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 80.048985][ T5021] invoke_syscall+0x98/0x2b8 [ 80.049658][ T5021] el0_svc_common+0x138/0x258 [ 80.050332][ T5021] do_el0_svc+0x58/0x14c [ 80.050967][ T5021] el0_svc+0x78/0x1e0 [ 80.051496][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 80.052237][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 80.054736][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.056360][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 80.057385][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.058941][ T5021] Call trace: [ 80.059463][ T5021] dump_backtrace+0x0/0x43c [ 80.060177][ T5021] show_stack+0x2c/0x3c [ 80.060844][ T5021] __dump_stack+0x30/0x40 [ 80.061551][ T5021] dump_stack_lvl+0xf8/0x160 [ 80.062273][ T5021] dump_stack+0x1c/0x5c [ 80.062969][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.063764][ T5021] dccp_xmit_packet+0x298/0x448 [ 80.064490][ T5021] dccp_write_xmit+0x118/0x1d0 [ 80.065172][ T5021] dccp_sendmsg+0x538/0x8a8 [ 80.065955][ T5021] inet_sendmsg+0x154/0x284 [ 80.066597][ T5021] __sys_sendto+0x2e8/0x3d8 [ 80.067274][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 80.068031][ T5021] invoke_syscall+0x98/0x2b8 [ 80.068763][ T5021] el0_svc_common+0x138/0x258 [ 80.069579][ T5021] do_el0_svc+0x58/0x14c [ 80.070238][ T5021] el0_svc+0x78/0x1e0 [ 80.070822][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 80.071614][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 80.074199][ T5021] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.075927][ T5021] CPU: 1 PID: 5021 Comm: syz.0.32 Not tainted syzkaller #0 [ 80.077023][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.078635][ T5021] Call trace: [ 80.079129][ T5021] dump_backtrace+0x0/0x43c [ 80.079802][ T5021] show_stack+0x2c/0x3c [ 80.080459][ T5021] __dump_stack+0x30/0x40 [ 80.081131][ T5021] dump_stack_lvl+0xf8/0x160 [ 80.081815][ T5021] dump_stack+0x1c/0x5c [ 80.082454][ T5021] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.083278][ T5021] dccp_xmit_packet+0x298/0x448 [ 80.084044][ T5021] dccp_write_xmit+0x118/0x1d0 [ 80.084758][ T5021] dccp_sendmsg+0x538/0x8a8 [ 80.085494][ T5021] inet_sendmsg+0x154/0x284 [ 80.086286][ T5021] __sys_sendto+0x2e8/0x3d8 [ 80.087025][ T5021] __arm64_sys_sendto+0xd8/0xf8 [ 80.087849][ T5021] invoke_syscall+0x98/0x2b8 [ 80.088609][ T5021] el0_svc_common+0x138/0x258 [ 80.089297][ T5021] do_el0_svc+0x58/0x14c [ 80.089990][ T5021] el0_svc+0x78/0x1e0 [ 80.090609][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 80.091404][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 80.117103][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.118965][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.120012][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.121464][ T5023] Call trace: [ 80.121934][ T5023] dump_backtrace+0x0/0x43c [ 80.122579][ T5023] show_stack+0x2c/0x3c [ 80.123324][ T5023] __dump_stack+0x30/0x40 [ 80.124038][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.124722][ T5023] dump_stack+0x1c/0x5c [ 80.125352][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.126248][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.126979][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.127725][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.128499][ T5023] inet_sendmsg+0x154/0x284 [ 80.129181][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.129930][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.130703][ T5023] invoke_syscall+0x98/0x2b8 [ 80.131433][ T5023] el0_svc_common+0x138/0x258 [ 80.132226][ T5023] do_el0_svc+0x58/0x14c [ 80.132855][ T5023] el0_svc+0x78/0x1e0 [ 80.133491][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.134293][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.136047][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.137803][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.138905][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.140463][ T5023] Call trace: [ 80.140968][ T5023] dump_backtrace+0x0/0x43c [ 80.141673][ T5023] show_stack+0x2c/0x3c [ 80.142375][ T5023] __dump_stack+0x30/0x40 [ 80.143096][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.143867][ T5023] dump_stack+0x1c/0x5c [ 80.144539][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.145407][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.146232][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.147013][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.147770][ T5023] inet_sendmsg+0x154/0x284 [ 80.148559][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.149313][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.150113][ T5023] invoke_syscall+0x98/0x2b8 [ 80.150849][ T5023] el0_svc_common+0x138/0x258 [ 80.151580][ T5023] do_el0_svc+0x58/0x14c [ 80.152277][ T5023] el0_svc+0x78/0x1e0 [ 80.152943][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.153790][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.155624][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.157256][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.158390][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.160008][ T5023] Call trace: [ 80.160493][ T5023] dump_backtrace+0x0/0x43c [ 80.161147][ T5023] show_stack+0x2c/0x3c [ 80.161786][ T5023] __dump_stack+0x30/0x40 [ 80.162479][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.163144][ T5023] dump_stack+0x1c/0x5c [ 80.163829][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.164697][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.165425][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.166194][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.166913][ T5023] inet_sendmsg+0x154/0x284 [ 80.167569][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.168235][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.168956][ T5023] invoke_syscall+0x98/0x2b8 [ 80.169669][ T5023] el0_svc_common+0x138/0x258 [ 80.170359][ T5023] do_el0_svc+0x58/0x14c [ 80.171002][ T5023] el0_svc+0x78/0x1e0 [ 80.171593][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.172314][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.175022][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.176935][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.178033][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.179525][ T5023] Call trace: [ 80.179997][ T5023] dump_backtrace+0x0/0x43c [ 80.180705][ T5023] show_stack+0x2c/0x3c [ 80.181313][ T5023] __dump_stack+0x30/0x40 [ 80.181930][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.182745][ T5023] dump_stack+0x1c/0x5c [ 80.183476][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.184390][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.185139][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.185985][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.186728][ T5023] inet_sendmsg+0x154/0x284 [ 80.187497][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.188239][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.188995][ T5023] invoke_syscall+0x98/0x2b8 [ 80.189745][ T5023] el0_svc_common+0x138/0x258 [ 80.190414][ T5023] do_el0_svc+0x58/0x14c [ 80.191087][ T5023] el0_svc+0x78/0x1e0 [ 80.191743][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.192607][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.194574][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.196378][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.197552][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.199179][ T5023] Call trace: [ 80.199770][ T5023] dump_backtrace+0x0/0x43c [ 80.200546][ T5023] show_stack+0x2c/0x3c [ 80.201196][ T5023] __dump_stack+0x30/0x40 [ 80.201976][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.202728][ T5023] dump_stack+0x1c/0x5c [ 80.203424][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.204295][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.205087][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.205832][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.206506][ T5023] inet_sendmsg+0x154/0x284 [ 80.207204][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.207872][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.208645][ T5023] invoke_syscall+0x98/0x2b8 [ 80.209378][ T5023] el0_svc_common+0x138/0x258 [ 80.210088][ T5023] do_el0_svc+0x58/0x14c [ 80.210709][ T5023] el0_svc+0x78/0x1e0 [ 80.211339][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.212062][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.213865][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.215680][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.216783][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.218413][ T5023] Call trace: [ 80.219001][ T5023] dump_backtrace+0x0/0x43c [ 80.219711][ T5023] show_stack+0x2c/0x3c [ 80.220355][ T5023] __dump_stack+0x30/0x40 [ 80.221058][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.221744][ T5023] dump_stack+0x1c/0x5c [ 80.222409][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.223301][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.224108][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.224871][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.225587][ T5023] inet_sendmsg+0x154/0x284 [ 80.226307][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.227032][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.227788][ T5023] invoke_syscall+0x98/0x2b8 [ 80.228557][ T5023] el0_svc_common+0x138/0x258 [ 80.229300][ T5023] do_el0_svc+0x58/0x14c [ 80.229981][ T5023] el0_svc+0x78/0x1e0 [ 80.230589][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.231361][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.232907][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.234814][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.235991][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.237762][ T5023] Call trace: [ 80.238315][ T5023] dump_backtrace+0x0/0x43c [ 80.239085][ T5023] show_stack+0x2c/0x3c [ 80.239785][ T5023] __dump_stack+0x30/0x40 [ 80.240482][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.241213][ T5023] dump_stack+0x1c/0x5c [ 80.241840][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.242660][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.243389][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.244066][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.244728][ T5023] inet_sendmsg+0x154/0x284 [ 80.245409][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.246130][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.246873][ T5023] invoke_syscall+0x98/0x2b8 [ 80.247572][ T5023] el0_svc_common+0x138/0x258 [ 80.248238][ T5023] do_el0_svc+0x58/0x14c [ 80.248865][ T5023] el0_svc+0x78/0x1e0 [ 80.249532][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.250356][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.252564][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.254230][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.255271][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.256803][ T5023] Call trace: [ 80.257313][ T5023] dump_backtrace+0x0/0x43c [ 80.257997][ T5023] show_stack+0x2c/0x3c [ 80.258616][ T5023] __dump_stack+0x30/0x40 [ 80.259268][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.260017][ T5023] dump_stack+0x1c/0x5c [ 80.260621][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.261413][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.262176][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.262962][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.263674][ T5023] inet_sendmsg+0x154/0x284 [ 80.264433][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.265172][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.265931][ T5023] invoke_syscall+0x98/0x2b8 [ 80.266678][ T5023] el0_svc_common+0x138/0x258 [ 80.267507][ T5023] do_el0_svc+0x58/0x14c [ 80.268193][ T5023] el0_svc+0x78/0x1e0 [ 80.268788][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.269592][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.271077][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.273548][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.274638][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.276253][ T5023] Call trace: [ 80.276763][ T5023] dump_backtrace+0x0/0x43c [ 80.277499][ T5023] show_stack+0x2c/0x3c [ 80.278177][ T5023] __dump_stack+0x30/0x40 [ 80.278841][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.279560][ T5023] dump_stack+0x1c/0x5c [ 80.280172][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.281018][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.281812][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.282560][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.283238][ T5023] inet_sendmsg+0x154/0x284 [ 80.283896][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.284621][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.285318][ T5023] invoke_syscall+0x98/0x2b8 [ 80.285980][ T5023] el0_svc_common+0x138/0x258 [ 80.286748][ T5023] do_el0_svc+0x58/0x14c [ 80.287421][ T5023] el0_svc+0x78/0x1e0 [ 80.288037][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.288820][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.290875][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.293313][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.294534][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.296222][ T5023] Call trace: [ 80.296715][ T5023] dump_backtrace+0x0/0x43c [ 80.297416][ T5023] show_stack+0x2c/0x3c [ 80.298022][ T5023] __dump_stack+0x30/0x40 [ 80.298703][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.299392][ T5023] dump_stack+0x1c/0x5c [ 80.300079][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.300960][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.301682][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.302429][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.303186][ T5023] inet_sendmsg+0x154/0x284 [ 80.303938][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.304669][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.305470][ T5023] invoke_syscall+0x98/0x2b8 [ 80.306227][ T5023] el0_svc_common+0x138/0x258 [ 80.306993][ T5023] do_el0_svc+0x58/0x14c [ 80.307691][ T5023] el0_svc+0x78/0x1e0 [ 80.308337][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.309143][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.311037][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.313515][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.314590][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.316237][ T5023] Call trace: [ 80.316770][ T5023] dump_backtrace+0x0/0x43c [ 80.317467][ T5023] show_stack+0x2c/0x3c [ 80.318151][ T5023] __dump_stack+0x30/0x40 [ 80.318899][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.319709][ T5023] dump_stack+0x1c/0x5c [ 80.320371][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.321216][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.321916][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.322688][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.323444][ T5023] inet_sendmsg+0x154/0x284 [ 80.324179][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.324949][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.325763][ T5023] invoke_syscall+0x98/0x2b8 [ 80.326517][ T5023] el0_svc_common+0x138/0x258 [ 80.327279][ T5023] do_el0_svc+0x58/0x14c [ 80.328043][ T5023] el0_svc+0x78/0x1e0 [ 80.328679][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.329503][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.331631][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.334035][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.335057][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.336619][ T5023] Call trace: [ 80.337156][ T5023] dump_backtrace+0x0/0x43c [ 80.337894][ T5023] show_stack+0x2c/0x3c [ 80.338593][ T5023] __dump_stack+0x30/0x40 [ 80.339312][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.340027][ T5023] dump_stack+0x1c/0x5c [ 80.340651][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.341425][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.342190][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.342846][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.343567][ T5023] inet_sendmsg+0x154/0x284 [ 80.344296][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.344983][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.345726][ T5023] invoke_syscall+0x98/0x2b8 [ 80.346454][ T5023] el0_svc_common+0x138/0x258 [ 80.347172][ T5023] do_el0_svc+0x58/0x14c [ 80.347870][ T5023] el0_svc+0x78/0x1e0 [ 80.348496][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.349297][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.350724][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.353129][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.354178][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.355744][ T5023] Call trace: [ 80.356200][ T5023] dump_backtrace+0x0/0x43c [ 80.356844][ T5023] show_stack+0x2c/0x3c [ 80.357501][ T5023] __dump_stack+0x30/0x40 [ 80.358268][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.358960][ T5023] dump_stack+0x1c/0x5c [ 80.359620][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.360463][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.361231][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.362013][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.362701][ T5023] inet_sendmsg+0x154/0x284 [ 80.363507][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.364220][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.364964][ T5023] invoke_syscall+0x98/0x2b8 [ 80.365658][ T5023] el0_svc_common+0x138/0x258 [ 80.366385][ T5023] do_el0_svc+0x58/0x14c [ 80.367008][ T5023] el0_svc+0x78/0x1e0 [ 80.367724][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.368483][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.369894][ T5023] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.371582][ T5023] CPU: 0 PID: 5023 Comm: syz.0.33 Not tainted syzkaller #0 [ 80.372673][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.374245][ T5023] Call trace: [ 80.374806][ T5023] dump_backtrace+0x0/0x43c [ 80.375494][ T5023] show_stack+0x2c/0x3c [ 80.376156][ T5023] __dump_stack+0x30/0x40 [ 80.376874][ T5023] dump_stack_lvl+0xf8/0x160 [ 80.377640][ T5023] dump_stack+0x1c/0x5c [ 80.378283][ T5023] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.379114][ T5023] dccp_xmit_packet+0x298/0x448 [ 80.379902][ T5023] dccp_write_xmit+0x118/0x1d0 [ 80.380679][ T5023] dccp_sendmsg+0x538/0x8a8 [ 80.381434][ T5023] inet_sendmsg+0x154/0x284 [ 80.382175][ T5023] __sys_sendto+0x2e8/0x3d8 [ 80.382841][ T5023] __arm64_sys_sendto+0xd8/0xf8 [ 80.383665][ T5023] invoke_syscall+0x98/0x2b8 [ 80.384435][ T5023] el0_svc_common+0x138/0x258 [ 80.385203][ T5023] do_el0_svc+0x58/0x14c [ 80.385882][ T5023] el0_svc+0x78/0x1e0 [ 80.386547][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 80.387295][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 80.410149][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.412139][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.413253][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.414670][ T5025] Call trace: [ 80.415165][ T5025] dump_backtrace+0x0/0x43c [ 80.415829][ T5025] show_stack+0x2c/0x3c [ 80.416501][ T5025] __dump_stack+0x30/0x40 [ 80.417250][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.417977][ T5025] dump_stack+0x1c/0x5c [ 80.418654][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.419569][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.420341][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.421072][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.421758][ T5025] inet_sendmsg+0x154/0x284 [ 80.422401][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.423117][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.423876][ T5025] invoke_syscall+0x98/0x2b8 [ 80.424580][ T5025] el0_svc_common+0x138/0x258 [ 80.425304][ T5025] do_el0_svc+0x58/0x14c [ 80.425914][ T5025] el0_svc+0x78/0x1e0 [ 80.426513][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.427234][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.428936][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.430706][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.431761][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.433186][ T5025] Call trace: [ 80.433658][ T5025] dump_backtrace+0x0/0x43c [ 80.434388][ T5025] show_stack+0x2c/0x3c [ 80.435099][ T5025] __dump_stack+0x30/0x40 [ 80.435780][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.436509][ T5025] dump_stack+0x1c/0x5c [ 80.437179][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.438069][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.438879][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.439625][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.440323][ T5025] inet_sendmsg+0x154/0x284 [ 80.441019][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.441720][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.442468][ T5025] invoke_syscall+0x98/0x2b8 [ 80.443179][ T5025] el0_svc_common+0x138/0x258 [ 80.443881][ T5025] do_el0_svc+0x58/0x14c [ 80.444504][ T5025] el0_svc+0x78/0x1e0 [ 80.445103][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.445916][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.447936][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.449662][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.450817][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.452462][ T5025] Call trace: [ 80.452968][ T5025] dump_backtrace+0x0/0x43c [ 80.453653][ T5025] show_stack+0x2c/0x3c [ 80.454284][ T5025] __dump_stack+0x30/0x40 [ 80.454904][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.455578][ T5025] dump_stack+0x1c/0x5c [ 80.456190][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.456985][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.457712][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.458497][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.459199][ T5025] inet_sendmsg+0x154/0x284 [ 80.459906][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.460625][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.461335][ T5025] invoke_syscall+0x98/0x2b8 [ 80.462053][ T5025] el0_svc_common+0x138/0x258 [ 80.462772][ T5025] do_el0_svc+0x58/0x14c [ 80.463426][ T5025] el0_svc+0x78/0x1e0 [ 80.464031][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.464760][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.467248][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.468947][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.470022][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.471624][ T5025] Call trace: [ 80.472095][ T5025] dump_backtrace+0x0/0x43c [ 80.472857][ T5025] show_stack+0x2c/0x3c [ 80.473528][ T5025] __dump_stack+0x30/0x40 [ 80.474283][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.475018][ T5025] dump_stack+0x1c/0x5c [ 80.475673][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.476581][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.477375][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.478163][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.478910][ T5025] inet_sendmsg+0x154/0x284 [ 80.479612][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.480273][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.481089][ T5025] invoke_syscall+0x98/0x2b8 [ 80.481857][ T5025] el0_svc_common+0x138/0x258 [ 80.482569][ T5025] do_el0_svc+0x58/0x14c [ 80.483261][ T5025] el0_svc+0x78/0x1e0 [ 80.483858][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.484673][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.488764][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.490481][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.491642][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.493225][ T5025] Call trace: [ 80.493717][ T5025] dump_backtrace+0x0/0x43c [ 80.494412][ T5025] show_stack+0x2c/0x3c [ 80.495049][ T5025] __dump_stack+0x30/0x40 [ 80.495743][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.496512][ T5025] dump_stack+0x1c/0x5c [ 80.497232][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.498093][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.498883][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.499583][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.500263][ T5025] inet_sendmsg+0x154/0x284 [ 80.501006][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.501720][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.502545][ T5025] invoke_syscall+0x98/0x2b8 [ 80.503265][ T5025] el0_svc_common+0x138/0x258 [ 80.503957][ T5025] do_el0_svc+0x58/0x14c [ 80.504640][ T5025] el0_svc+0x78/0x1e0 [ 80.505291][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.506089][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.508088][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.509813][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.510885][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.512358][ T5025] Call trace: [ 80.512906][ T5025] dump_backtrace+0x0/0x43c [ 80.513625][ T5025] show_stack+0x2c/0x3c [ 80.514312][ T5025] __dump_stack+0x30/0x40 [ 80.514990][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.515711][ T5025] dump_stack+0x1c/0x5c [ 80.516361][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.517178][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.517901][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.518582][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.519292][ T5025] inet_sendmsg+0x154/0x284 [ 80.520022][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.520771][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.521545][ T5025] invoke_syscall+0x98/0x2b8 [ 80.522277][ T5025] el0_svc_common+0x138/0x258 [ 80.522982][ T5025] do_el0_svc+0x58/0x14c [ 80.523662][ T5025] el0_svc+0x78/0x1e0 [ 80.524290][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.525092][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.526021][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.527647][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.528706][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.530215][ T5025] Call trace: [ 80.530686][ T5025] dump_backtrace+0x0/0x43c [ 80.531399][ T5025] show_stack+0x2c/0x3c [ 80.532085][ T5025] __dump_stack+0x30/0x40 [ 80.532758][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.533490][ T5025] dump_stack+0x1c/0x5c [ 80.534143][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.534952][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.535669][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.536393][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.537033][ T5025] inet_sendmsg+0x154/0x284 [ 80.537772][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.538482][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.539202][ T5025] invoke_syscall+0x98/0x2b8 [ 80.539893][ T5025] el0_svc_common+0x138/0x258 [ 80.540584][ T5025] do_el0_svc+0x58/0x14c [ 80.541251][ T5025] el0_svc+0x78/0x1e0 [ 80.541819][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.542574][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.543403][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.545045][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.546082][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.547502][ T5025] Call trace: [ 80.547992][ T5025] dump_backtrace+0x0/0x43c [ 80.548645][ T5025] show_stack+0x2c/0x3c [ 80.549253][ T5025] __dump_stack+0x30/0x40 [ 80.549921][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.550639][ T5025] dump_stack+0x1c/0x5c [ 80.551316][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.552185][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.552932][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.553631][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.554331][ T5025] inet_sendmsg+0x154/0x284 [ 80.555075][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.555832][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.556602][ T5025] invoke_syscall+0x98/0x2b8 [ 80.557353][ T5025] el0_svc_common+0x138/0x258 [ 80.558130][ T5025] do_el0_svc+0x58/0x14c [ 80.558847][ T5025] el0_svc+0x78/0x1e0 [ 80.559478][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.560293][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.561663][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.563400][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.564506][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.566134][ T5025] Call trace: [ 80.566652][ T5025] dump_backtrace+0x0/0x43c [ 80.567355][ T5025] show_stack+0x2c/0x3c [ 80.567985][ T5025] __dump_stack+0x30/0x40 [ 80.568629][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.569240][ T5025] dump_stack+0x1c/0x5c [ 80.569835][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.570611][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.571290][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.572009][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.572672][ T5025] inet_sendmsg+0x154/0x284 [ 80.573365][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.574092][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.574878][ T5025] invoke_syscall+0x98/0x2b8 [ 80.575653][ T5025] el0_svc_common+0x138/0x258 [ 80.576415][ T5025] do_el0_svc+0x58/0x14c [ 80.577116][ T5025] el0_svc+0x78/0x1e0 [ 80.577735][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.578494][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.579343][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.580927][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.581963][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.583478][ T5025] Call trace: [ 80.584021][ T5025] dump_backtrace+0x0/0x43c [ 80.584796][ T5025] show_stack+0x2c/0x3c [ 80.585461][ T5025] __dump_stack+0x30/0x40 [ 80.586122][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.586818][ T5025] dump_stack+0x1c/0x5c [ 80.587489][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.588346][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.589105][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.589810][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.590506][ T5025] inet_sendmsg+0x154/0x284 [ 80.591201][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.591932][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.592684][ T5025] invoke_syscall+0x98/0x2b8 [ 80.593419][ T5025] el0_svc_common+0x138/0x258 [ 80.594151][ T5025] do_el0_svc+0x58/0x14c [ 80.594829][ T5025] el0_svc+0x78/0x1e0 [ 80.595461][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.596268][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.597459][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.599233][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.600328][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.601809][ T5025] Call trace: [ 80.602328][ T5025] dump_backtrace+0x0/0x43c [ 80.603046][ T5025] show_stack+0x2c/0x3c [ 80.603672][ T5025] __dump_stack+0x30/0x40 [ 80.604352][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.605009][ T5025] dump_stack+0x1c/0x5c [ 80.605648][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.606447][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.607170][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.607861][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.608522][ T5025] inet_sendmsg+0x154/0x284 [ 80.609204][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.609899][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.610694][ T5025] invoke_syscall+0x98/0x2b8 [ 80.611395][ T5025] el0_svc_common+0x138/0x258 [ 80.612097][ T5025] do_el0_svc+0x58/0x14c [ 80.612784][ T5025] el0_svc+0x78/0x1e0 [ 80.613429][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.614232][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.615331][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.617106][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.618184][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.619608][ T5025] Call trace: [ 80.620046][ T5025] dump_backtrace+0x0/0x43c [ 80.620667][ T5025] show_stack+0x2c/0x3c [ 80.621271][ T5025] __dump_stack+0x30/0x40 [ 80.621913][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.622612][ T5025] dump_stack+0x1c/0x5c [ 80.623301][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.624187][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.624997][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.625800][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.626450][ T5025] inet_sendmsg+0x154/0x284 [ 80.627135][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.627863][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.628595][ T5025] invoke_syscall+0x98/0x2b8 [ 80.629289][ T5025] el0_svc_common+0x138/0x258 [ 80.629985][ T5025] do_el0_svc+0x58/0x14c [ 80.630683][ T5025] el0_svc+0x78/0x1e0 [ 80.631338][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.632135][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.633084][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.634773][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.635921][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.637543][ T5025] Call trace: [ 80.638102][ T5025] dump_backtrace+0x0/0x43c [ 80.638777][ T5025] show_stack+0x2c/0x3c [ 80.639395][ T5025] __dump_stack+0x30/0x40 [ 80.640086][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.640773][ T5025] dump_stack+0x1c/0x5c [ 80.641356][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.642111][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.642916][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.643683][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.644408][ T5025] inet_sendmsg+0x154/0x284 [ 80.645148][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.645808][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.646575][ T5025] invoke_syscall+0x98/0x2b8 [ 80.647286][ T5025] el0_svc_common+0x138/0x258 [ 80.647963][ T5025] do_el0_svc+0x58/0x14c [ 80.648558][ T5025] el0_svc+0x78/0x1e0 [ 80.649159][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.649881][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.650799][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.652662][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.653772][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.655244][ T5025] Call trace: [ 80.655707][ T5025] dump_backtrace+0x0/0x43c [ 80.656332][ T5025] show_stack+0x2c/0x3c [ 80.656963][ T5025] __dump_stack+0x30/0x40 [ 80.657571][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.658241][ T5025] dump_stack+0x1c/0x5c [ 80.658950][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.659881][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.660660][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.661423][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.662175][ T5025] inet_sendmsg+0x154/0x284 [ 80.662875][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.663615][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.664397][ T5025] invoke_syscall+0x98/0x2b8 [ 80.665082][ T5025] el0_svc_common+0x138/0x258 [ 80.665756][ T5025] do_el0_svc+0x58/0x14c [ 80.666461][ T5025] el0_svc+0x78/0x1e0 [ 80.667050][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.667874][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.669085][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.670885][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.672019][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.673758][ T5025] Call trace: [ 80.674301][ T5025] dump_backtrace+0x0/0x43c [ 80.675033][ T5025] show_stack+0x2c/0x3c [ 80.675704][ T5025] __dump_stack+0x30/0x40 [ 80.676440][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.677175][ T5025] dump_stack+0x1c/0x5c [ 80.677842][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.678666][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.679456][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.680242][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.680945][ T5025] inet_sendmsg+0x154/0x284 [ 80.681685][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.682450][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.683296][ T5025] invoke_syscall+0x98/0x2b8 [ 80.684035][ T5025] el0_svc_common+0x138/0x258 [ 80.684858][ T5025] do_el0_svc+0x58/0x14c [ 80.685603][ T5025] el0_svc+0x78/0x1e0 [ 80.686286][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.687080][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.688006][ T5025] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.689785][ T5025] CPU: 0 PID: 5025 Comm: syz.0.34 Not tainted syzkaller #0 [ 80.690922][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.692478][ T5025] Call trace: [ 80.692972][ T5025] dump_backtrace+0x0/0x43c [ 80.693732][ T5025] show_stack+0x2c/0x3c [ 80.694416][ T5025] __dump_stack+0x30/0x40 [ 80.695145][ T5025] dump_stack_lvl+0xf8/0x160 [ 80.695944][ T5025] dump_stack+0x1c/0x5c [ 80.696590][ T5025] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.697456][ T5025] dccp_xmit_packet+0x298/0x448 [ 80.698242][ T5025] dccp_write_xmit+0x118/0x1d0 [ 80.699040][ T5025] dccp_sendmsg+0x538/0x8a8 [ 80.699769][ T5025] inet_sendmsg+0x154/0x284 [ 80.700528][ T5025] __sys_sendto+0x2e8/0x3d8 [ 80.701256][ T5025] __arm64_sys_sendto+0xd8/0xf8 [ 80.701990][ T5025] invoke_syscall+0x98/0x2b8 [ 80.702763][ T5025] el0_svc_common+0x138/0x258 [ 80.703515][ T5025] do_el0_svc+0x58/0x14c [ 80.704180][ T5025] el0_svc+0x78/0x1e0 [ 80.704796][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 80.705549][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 80.721562][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.723479][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.724637][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.726243][ T5027] Call trace: [ 80.726738][ T5027] dump_backtrace+0x0/0x43c [ 80.727428][ T5027] show_stack+0x2c/0x3c [ 80.728061][ T5027] __dump_stack+0x30/0x40 [ 80.728716][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.729397][ T5027] dump_stack+0x1c/0x5c [ 80.730001][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.730767][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.731566][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.732342][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.733092][ T5027] inet_sendmsg+0x154/0x284 [ 80.733808][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.734594][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.735434][ T5027] invoke_syscall+0x98/0x2b8 [ 80.736222][ T5027] el0_svc_common+0x138/0x258 [ 80.737000][ T5027] do_el0_svc+0x58/0x14c [ 80.737699][ T5027] el0_svc+0x78/0x1e0 [ 80.738325][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.739148][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.740428][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.742402][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.743491][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.744943][ T5027] Call trace: [ 80.745440][ T5027] dump_backtrace+0x0/0x43c [ 80.746157][ T5027] show_stack+0x2c/0x3c [ 80.746713][ T5027] __dump_stack+0x30/0x40 [ 80.747313][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.748049][ T5027] dump_stack+0x1c/0x5c [ 80.748688][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.749516][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.750272][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.750976][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.751645][ T5027] inet_sendmsg+0x154/0x284 [ 80.752330][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.753033][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.753791][ T5027] invoke_syscall+0x98/0x2b8 [ 80.754491][ T5027] el0_svc_common+0x138/0x258 [ 80.755193][ T5027] do_el0_svc+0x58/0x14c [ 80.755837][ T5027] el0_svc+0x78/0x1e0 [ 80.756445][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.757213][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.758058][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.759621][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.760603][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.762195][ T5027] Call trace: [ 80.762698][ T5027] dump_backtrace+0x0/0x43c [ 80.763394][ T5027] show_stack+0x2c/0x3c [ 80.764035][ T5027] __dump_stack+0x30/0x40 [ 80.764728][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.765467][ T5027] dump_stack+0x1c/0x5c [ 80.766159][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.767013][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.767786][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.768570][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.769330][ T5027] inet_sendmsg+0x154/0x284 [ 80.770074][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.770776][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.771554][ T5027] invoke_syscall+0x98/0x2b8 [ 80.772291][ T5027] el0_svc_common+0x138/0x258 [ 80.773029][ T5027] do_el0_svc+0x58/0x14c [ 80.773714][ T5027] el0_svc+0x78/0x1e0 [ 80.774385][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.775270][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.776527][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.778306][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.779466][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.781036][ T5027] Call trace: [ 80.781500][ T5027] dump_backtrace+0x0/0x43c [ 80.782216][ T5027] show_stack+0x2c/0x3c [ 80.782905][ T5027] __dump_stack+0x30/0x40 [ 80.783666][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.784458][ T5027] dump_stack+0x1c/0x5c [ 80.785140][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.786035][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.786836][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.787600][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.788316][ T5027] inet_sendmsg+0x154/0x284 [ 80.789076][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.789850][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.790611][ T5027] invoke_syscall+0x98/0x2b8 [ 80.791321][ T5027] el0_svc_common+0x138/0x258 [ 80.792006][ T5027] do_el0_svc+0x58/0x14c [ 80.792670][ T5027] el0_svc+0x78/0x1e0 [ 80.793257][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.794098][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.795072][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.796782][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.797946][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.799540][ T5027] Call trace: [ 80.800062][ T5027] dump_backtrace+0x0/0x43c [ 80.800740][ T5027] show_stack+0x2c/0x3c [ 80.801328][ T5027] __dump_stack+0x30/0x40 [ 80.802013][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.802741][ T5027] dump_stack+0x1c/0x5c [ 80.803376][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.804220][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.804998][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.805838][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.806625][ T5027] inet_sendmsg+0x154/0x284 [ 80.807373][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.808045][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.808770][ T5027] invoke_syscall+0x98/0x2b8 [ 80.809562][ T5027] el0_svc_common+0x138/0x258 [ 80.810307][ T5027] do_el0_svc+0x58/0x14c [ 80.810987][ T5027] el0_svc+0x78/0x1e0 [ 80.811666][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.812500][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.813518][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.815359][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.816395][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.817836][ T5027] Call trace: [ 80.818329][ T5027] dump_backtrace+0x0/0x43c [ 80.818998][ T5027] show_stack+0x2c/0x3c [ 80.819592][ T5027] __dump_stack+0x30/0x40 [ 80.820203][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.820844][ T5027] dump_stack+0x1c/0x5c [ 80.821404][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.822253][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.822987][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.823748][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.824424][ T5027] inet_sendmsg+0x154/0x284 [ 80.825069][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.825745][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.826503][ T5027] invoke_syscall+0x98/0x2b8 [ 80.827183][ T5027] el0_svc_common+0x138/0x258 [ 80.827845][ T5027] do_el0_svc+0x58/0x14c [ 80.828554][ T5027] el0_svc+0x78/0x1e0 [ 80.829209][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.829984][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.830885][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.832689][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.833705][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.835183][ T5027] Call trace: [ 80.835654][ T5027] dump_backtrace+0x0/0x43c [ 80.836401][ T5027] show_stack+0x2c/0x3c [ 80.837102][ T5027] __dump_stack+0x30/0x40 [ 80.837830][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.838581][ T5027] dump_stack+0x1c/0x5c [ 80.839273][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.840075][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.840795][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.841572][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.842319][ T5027] inet_sendmsg+0x154/0x284 [ 80.843045][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.843795][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.844509][ T5027] invoke_syscall+0x98/0x2b8 [ 80.845245][ T5027] el0_svc_common+0x138/0x258 [ 80.845989][ T5027] do_el0_svc+0x58/0x14c [ 80.846675][ T5027] el0_svc+0x78/0x1e0 [ 80.847352][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.848202][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.849268][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.851047][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.852128][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.853846][ T5027] Call trace: [ 80.854356][ T5027] dump_backtrace+0x0/0x43c [ 80.855108][ T5027] show_stack+0x2c/0x3c [ 80.855758][ T5027] __dump_stack+0x30/0x40 [ 80.856436][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.857143][ T5027] dump_stack+0x1c/0x5c [ 80.857810][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.858758][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.859556][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.860301][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.861075][ T5027] inet_sendmsg+0x154/0x284 [ 80.861803][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.862490][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.863214][ T5027] invoke_syscall+0x98/0x2b8 [ 80.863948][ T5027] el0_svc_common+0x138/0x258 [ 80.864729][ T5027] do_el0_svc+0x58/0x14c [ 80.865452][ T5027] el0_svc+0x78/0x1e0 [ 80.866090][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.866925][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.867930][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.869673][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.870728][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.872110][ T5027] Call trace: [ 80.872594][ T5027] dump_backtrace+0x0/0x43c [ 80.873262][ T5027] show_stack+0x2c/0x3c [ 80.873857][ T5027] __dump_stack+0x30/0x40 [ 80.874464][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.875112][ T5027] dump_stack+0x1c/0x5c [ 80.875681][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.876539][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.877317][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.878135][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.878911][ T5027] inet_sendmsg+0x154/0x284 [ 80.879688][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.880367][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.881115][ T5027] invoke_syscall+0x98/0x2b8 [ 80.881818][ T5027] el0_svc_common+0x138/0x258 [ 80.882506][ T5027] do_el0_svc+0x58/0x14c [ 80.883161][ T5027] el0_svc+0x78/0x1e0 [ 80.883771][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.884565][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.885712][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.887448][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.888550][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.890118][ T5027] Call trace: [ 80.890591][ T5027] dump_backtrace+0x0/0x43c [ 80.891244][ T5027] show_stack+0x2c/0x3c [ 80.891872][ T5027] __dump_stack+0x30/0x40 [ 80.892562][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.893310][ T5027] dump_stack+0x1c/0x5c [ 80.894012][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.894916][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.895773][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.896522][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.897272][ T5027] inet_sendmsg+0x154/0x284 [ 80.897979][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.898728][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.899554][ T5027] invoke_syscall+0x98/0x2b8 [ 80.900276][ T5027] el0_svc_common+0x138/0x258 [ 80.901028][ T5027] do_el0_svc+0x58/0x14c [ 80.901741][ T5027] el0_svc+0x78/0x1e0 [ 80.902329][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.903063][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.903982][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.905626][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.906773][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.908455][ T5027] Call trace: [ 80.908996][ T5027] dump_backtrace+0x0/0x43c [ 80.909750][ T5027] show_stack+0x2c/0x3c [ 80.910478][ T5027] __dump_stack+0x30/0x40 [ 80.911217][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.912028][ T5027] dump_stack+0x1c/0x5c [ 80.912751][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.913650][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.914390][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.915180][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.915965][ T5027] inet_sendmsg+0x154/0x284 [ 80.916705][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.917439][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.918215][ T5027] invoke_syscall+0x98/0x2b8 [ 80.918928][ T5027] el0_svc_common+0x138/0x258 [ 80.919589][ T5027] do_el0_svc+0x58/0x14c [ 80.920205][ T5027] el0_svc+0x78/0x1e0 [ 80.920797][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.921541][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.922748][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.924344][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.925410][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.926888][ T5027] Call trace: [ 80.927362][ T5027] dump_backtrace+0x0/0x43c [ 80.928152][ T5027] show_stack+0x2c/0x3c [ 80.928872][ T5027] __dump_stack+0x30/0x40 [ 80.929572][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.930320][ T5027] dump_stack+0x1c/0x5c [ 80.931009][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.931902][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.932671][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.933484][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.934214][ T5027] inet_sendmsg+0x154/0x284 [ 80.934931][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.935640][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.936461][ T5027] invoke_syscall+0x98/0x2b8 [ 80.937214][ T5027] el0_svc_common+0x138/0x258 [ 80.937925][ T5027] do_el0_svc+0x58/0x14c [ 80.938567][ T5027] el0_svc+0x78/0x1e0 [ 80.939198][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.939973][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.941310][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.942949][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.944040][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.945732][ T5027] Call trace: [ 80.946257][ T5027] dump_backtrace+0x0/0x43c [ 80.946960][ T5027] show_stack+0x2c/0x3c [ 80.947580][ T5027] __dump_stack+0x30/0x40 [ 80.948291][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.949052][ T5027] dump_stack+0x1c/0x5c [ 80.949708][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.950515][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.951285][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.952077][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.952860][ T5027] inet_sendmsg+0x154/0x284 [ 80.953569][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.954272][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.955061][ T5027] invoke_syscall+0x98/0x2b8 [ 80.955810][ T5027] el0_svc_common+0x138/0x258 [ 80.956594][ T5027] do_el0_svc+0x58/0x14c [ 80.957292][ T5027] el0_svc+0x78/0x1e0 [ 80.957897][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.958700][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.959560][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.961200][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.962301][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.963913][ T5027] Call trace: [ 80.964461][ T5027] dump_backtrace+0x0/0x43c [ 80.965235][ T5027] show_stack+0x2c/0x3c [ 80.965905][ T5027] __dump_stack+0x30/0x40 [ 80.966550][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.967304][ T5027] dump_stack+0x1c/0x5c [ 80.967939][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.968854][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.969641][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.970438][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.971210][ T5027] inet_sendmsg+0x154/0x284 [ 80.971944][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.972669][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.973466][ T5027] invoke_syscall+0x98/0x2b8 [ 80.974209][ T5027] el0_svc_common+0x138/0x258 [ 80.974923][ T5027] do_el0_svc+0x58/0x14c [ 80.975590][ T5027] el0_svc+0x78/0x1e0 [ 80.976247][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.977057][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.978282][ T5027] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.979969][ T5027] CPU: 0 PID: 5027 Comm: syz.0.35 Not tainted syzkaller #0 [ 80.981078][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.982681][ T5027] Call trace: [ 80.983249][ T5027] dump_backtrace+0x0/0x43c [ 80.983932][ T5027] show_stack+0x2c/0x3c [ 80.984567][ T5027] __dump_stack+0x30/0x40 [ 80.985379][ T5027] dump_stack_lvl+0xf8/0x160 [ 80.986127][ T5027] dump_stack+0x1c/0x5c [ 80.986783][ T5027] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.987717][ T5027] dccp_xmit_packet+0x298/0x448 [ 80.988519][ T5027] dccp_write_xmit+0x118/0x1d0 [ 80.989354][ T5027] dccp_sendmsg+0x538/0x8a8 [ 80.990103][ T5027] inet_sendmsg+0x154/0x284 [ 80.990886][ T5027] __sys_sendto+0x2e8/0x3d8 [ 80.991661][ T5027] __arm64_sys_sendto+0xd8/0xf8 [ 80.992504][ T5027] invoke_syscall+0x98/0x2b8 [ 80.993291][ T5027] el0_svc_common+0x138/0x258 [ 80.994028][ T5027] do_el0_svc+0x58/0x14c [ 80.994747][ T5027] el0_svc+0x78/0x1e0 [ 80.995395][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.996219][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 81.007607][ T5029] net_ratelimit: 10 callbacks suppressed [ 81.007617][ T5029] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.015875][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.017579][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.018727][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.020386][ T5029] Call trace: [ 81.020920][ T5029] dump_backtrace+0x0/0x43c [ 81.021628][ T5029] show_stack+0x2c/0x3c [ 81.022294][ T5029] __dump_stack+0x30/0x40 [ 81.023002][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.023733][ T5029] dump_stack+0x1c/0x5c [ 81.024446][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.025323][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.026107][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.026869][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.027589][ T5029] inet_sendmsg+0x154/0x284 [ 81.028342][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.029007][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.029727][ T5029] invoke_syscall+0x98/0x2b8 [ 81.030380][ T5029] el0_svc_common+0x138/0x258 [ 81.031098][ T5029] do_el0_svc+0x58/0x14c [ 81.031714][ T5029] el0_svc+0x78/0x1e0 [ 81.032323][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.033117][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.034616][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.036323][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.037445][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.038987][ T5029] Call trace: [ 81.039464][ T5029] dump_backtrace+0x0/0x43c [ 81.040117][ T5029] show_stack+0x2c/0x3c [ 81.040718][ T5029] __dump_stack+0x30/0x40 [ 81.041313][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.041990][ T5029] dump_stack+0x1c/0x5c 1970/01/01 00:01:21 executed programs: 22 [ 81.042635][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.043459][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.044155][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.044833][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.045476][ T5029] inet_sendmsg+0x154/0x284 [ 81.046104][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.046792][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.047593][ T5029] invoke_syscall+0x98/0x2b8 [ 81.048301][ T5029] el0_svc_common+0x138/0x258 [ 81.049015][ T5029] do_el0_svc+0x58/0x14c [ 81.049688][ T5029] el0_svc+0x78/0x1e0 [ 81.050347][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.051168][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.053208][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.054823][ T5029] CPU: 0 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.055913][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.057520][ T5029] Call trace: [ 81.058081][ T5029] dump_backtrace+0x0/0x43c [ 81.058859][ T5029] show_stack+0x2c/0x3c [ 81.059563][ T5029] __dump_stack+0x30/0x40 [ 81.060276][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.061049][ T5029] dump_stack+0x1c/0x5c [ 81.061734][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.062626][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.063438][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.064185][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.064901][ T5029] inet_sendmsg+0x154/0x284 [ 81.065640][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.066369][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.067175][ T5029] invoke_syscall+0x98/0x2b8 [ 81.067927][ T5029] el0_svc_common+0x138/0x258 [ 81.068681][ T5029] do_el0_svc+0x58/0x14c [ 81.069434][ T5029] el0_svc+0x78/0x1e0 [ 81.070085][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.070951][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.072603][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.074211][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.075285][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.076840][ T5029] Call trace: [ 81.077349][ T5029] dump_backtrace+0x0/0x43c [ 81.078097][ T5029] show_stack+0x2c/0x3c [ 81.078810][ T5029] __dump_stack+0x30/0x40 [ 81.079486][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.080237][ T5029] dump_stack+0x1c/0x5c [ 81.080832][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.081607][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.082373][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.083103][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.083850][ T5029] inet_sendmsg+0x154/0x284 [ 81.084536][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.085210][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.085986][ T5029] invoke_syscall+0x98/0x2b8 [ 81.086660][ T5029] el0_svc_common+0x138/0x258 [ 81.087387][ T5029] do_el0_svc+0x58/0x14c [ 81.088075][ T5029] el0_svc+0x78/0x1e0 [ 81.088669][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.089476][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.090760][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.092442][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.093467][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.094952][ T5029] Call trace: [ 81.095453][ T5029] dump_backtrace+0x0/0x43c [ 81.096191][ T5029] show_stack+0x2c/0x3c [ 81.096884][ T5029] __dump_stack+0x30/0x40 [ 81.097574][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.098340][ T5029] dump_stack+0x1c/0x5c [ 81.099010][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.099860][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.100550][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.101227][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.101942][ T5029] inet_sendmsg+0x154/0x284 [ 81.102592][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.103232][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.103940][ T5029] invoke_syscall+0x98/0x2b8 [ 81.104601][ T5029] el0_svc_common+0x138/0x258 [ 81.105257][ T5029] do_el0_svc+0x58/0x14c [ 81.105962][ T5029] el0_svc+0x78/0x1e0 [ 81.106615][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.107378][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.108216][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.109835][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.110893][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.112293][ T5029] Call trace: [ 81.112768][ T5029] dump_backtrace+0x0/0x43c [ 81.113427][ T5029] show_stack+0x2c/0x3c [ 81.114067][ T5029] __dump_stack+0x30/0x40 [ 81.114770][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.115544][ T5029] dump_stack+0x1c/0x5c [ 81.116203][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.117066][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.117784][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.118509][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.119190][ T5029] inet_sendmsg+0x154/0x284 [ 81.119869][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.120535][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.121248][ T5029] invoke_syscall+0x98/0x2b8 [ 81.121912][ T5029] el0_svc_common+0x138/0x258 [ 81.122675][ T5029] do_el0_svc+0x58/0x14c [ 81.123322][ T5029] el0_svc+0x78/0x1e0 [ 81.123925][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.124743][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.126075][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.127752][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.128891][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.130313][ T5029] Call trace: [ 81.130761][ T5029] dump_backtrace+0x0/0x43c [ 81.131424][ T5029] show_stack+0x2c/0x3c [ 81.132022][ T5029] __dump_stack+0x30/0x40 [ 81.132639][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.133296][ T5029] dump_stack+0x1c/0x5c [ 81.133892][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.134714][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.135494][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.136238][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.136971][ T5029] inet_sendmsg+0x154/0x284 [ 81.137631][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.138284][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.138973][ T5029] invoke_syscall+0x98/0x2b8 [ 81.139661][ T5029] el0_svc_common+0x138/0x258 [ 81.140370][ T5029] do_el0_svc+0x58/0x14c [ 81.140994][ T5029] el0_svc+0x78/0x1e0 [ 81.141548][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.142295][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.143148][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.144573][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.145540][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.146948][ T5029] Call trace: [ 81.147455][ T5029] dump_backtrace+0x0/0x43c [ 81.148169][ T5029] show_stack+0x2c/0x3c [ 81.148859][ T5029] __dump_stack+0x30/0x40 [ 81.149554][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.150326][ T5029] dump_stack+0x1c/0x5c [ 81.151006][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.151824][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.152594][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.153303][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.154006][ T5029] inet_sendmsg+0x154/0x284 [ 81.154723][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.155434][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.156186][ T5029] invoke_syscall+0x98/0x2b8 [ 81.156835][ T5029] el0_svc_common+0x138/0x258 [ 81.157492][ T5029] do_el0_svc+0x58/0x14c [ 81.158190][ T5029] el0_svc+0x78/0x1e0 [ 81.158798][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.159546][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.160374][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.161919][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.162957][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.164370][ T5029] Call trace: [ 81.164868][ T5029] dump_backtrace+0x0/0x43c [ 81.165518][ T5029] show_stack+0x2c/0x3c [ 81.166124][ T5029] __dump_stack+0x30/0x40 [ 81.166718][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.167346][ T5029] dump_stack+0x1c/0x5c [ 81.167906][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.168703][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.169469][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.170130][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.170813][ T5029] inet_sendmsg+0x154/0x284 [ 81.171479][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.172115][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.172820][ T5029] invoke_syscall+0x98/0x2b8 [ 81.173501][ T5029] el0_svc_common+0x138/0x258 [ 81.174209][ T5029] do_el0_svc+0x58/0x14c [ 81.174880][ T5029] el0_svc+0x78/0x1e0 [ 81.175525][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.176310][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.177132][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.178745][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.179726][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.181059][ T5029] Call trace: [ 81.181500][ T5029] dump_backtrace+0x0/0x43c [ 81.182099][ T5029] show_stack+0x2c/0x3c [ 81.182706][ T5029] __dump_stack+0x30/0x40 [ 81.183330][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.183957][ T5029] dump_stack+0x1c/0x5c [ 81.184546][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.185312][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.186028][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.186777][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.187407][ T5029] inet_sendmsg+0x154/0x284 [ 81.188120][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.188841][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.189639][ T5029] invoke_syscall+0x98/0x2b8 [ 81.190326][ T5029] el0_svc_common+0x138/0x258 [ 81.190969][ T5029] do_el0_svc+0x58/0x14c [ 81.191594][ T5029] el0_svc+0x78/0x1e0 [ 81.192192][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.192974][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.193860][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.195532][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.196684][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.198219][ T5029] Call trace: [ 81.198721][ T5029] dump_backtrace+0x0/0x43c [ 81.199436][ T5029] show_stack+0x2c/0x3c [ 81.200092][ T5029] __dump_stack+0x30/0x40 [ 81.200728][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.201410][ T5029] dump_stack+0x1c/0x5c [ 81.202030][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.202911][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.203679][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.204372][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.205016][ T5029] inet_sendmsg+0x154/0x284 [ 81.205752][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.206474][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.207187][ T5029] invoke_syscall+0x98/0x2b8 [ 81.207919][ T5029] el0_svc_common+0x138/0x258 [ 81.208714][ T5029] do_el0_svc+0x58/0x14c [ 81.209435][ T5029] el0_svc+0x78/0x1e0 [ 81.210115][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.210974][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.212253][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.214027][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.215116][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.216661][ T5029] Call trace: [ 81.217169][ T5029] dump_backtrace+0x0/0x43c [ 81.217862][ T5029] show_stack+0x2c/0x3c [ 81.218460][ T5029] __dump_stack+0x30/0x40 [ 81.219043][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.219737][ T5029] dump_stack+0x1c/0x5c [ 81.220318][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.221075][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.221740][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.222519][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.223213][ T5029] inet_sendmsg+0x154/0x284 [ 81.223863][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.224506][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.225265][ T5029] invoke_syscall+0x98/0x2b8 [ 81.225978][ T5029] el0_svc_common+0x138/0x258 [ 81.226661][ T5029] do_el0_svc+0x58/0x14c [ 81.227304][ T5029] el0_svc+0x78/0x1e0 [ 81.227917][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.228658][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.229490][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.231026][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.232102][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.233689][ T5029] Call trace: [ 81.234161][ T5029] dump_backtrace+0x0/0x43c [ 81.234861][ T5029] show_stack+0x2c/0x3c [ 81.235502][ T5029] __dump_stack+0x30/0x40 [ 81.236120][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.236868][ T5029] dump_stack+0x1c/0x5c [ 81.237508][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.238378][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.239152][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.239908][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.240613][ T5029] inet_sendmsg+0x154/0x284 [ 81.241376][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.242041][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.242802][ T5029] invoke_syscall+0x98/0x2b8 [ 81.243517][ T5029] el0_svc_common+0x138/0x258 [ 81.244273][ T5029] do_el0_svc+0x58/0x14c [ 81.244934][ T5029] el0_svc+0x78/0x1e0 [ 81.245535][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.246288][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.247134][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.248688][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.249670][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.251114][ T5029] Call trace: [ 81.251597][ T5029] dump_backtrace+0x0/0x43c [ 81.252244][ T5029] show_stack+0x2c/0x3c [ 81.252930][ T5029] __dump_stack+0x30/0x40 [ 81.253607][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.254320][ T5029] dump_stack+0x1c/0x5c [ 81.254955][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.255749][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.256482][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.257153][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.257864][ T5029] inet_sendmsg+0x154/0x284 [ 81.258519][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.259170][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.259917][ T5029] invoke_syscall+0x98/0x2b8 [ 81.260581][ T5029] el0_svc_common+0x138/0x258 [ 81.261273][ T5029] do_el0_svc+0x58/0x14c [ 81.261840][ T5029] el0_svc+0x78/0x1e0 [ 81.262447][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.263198][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.264009][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.265641][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.266755][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.268407][ T5029] Call trace: [ 81.268923][ T5029] dump_backtrace+0x0/0x43c [ 81.269651][ T5029] show_stack+0x2c/0x3c [ 81.270308][ T5029] __dump_stack+0x30/0x40 [ 81.270944][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.271607][ T5029] dump_stack+0x1c/0x5c [ 81.272241][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.273079][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.273872][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.274594][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.275270][ T5029] inet_sendmsg+0x154/0x284 [ 81.276051][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.276750][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.277493][ T5029] invoke_syscall+0x98/0x2b8 [ 81.278154][ T5029] el0_svc_common+0x138/0x258 [ 81.278909][ T5029] do_el0_svc+0x58/0x14c [ 81.279618][ T5029] el0_svc+0x78/0x1e0 [ 81.280217][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.280997][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.281925][ T5029] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.283447][ T5029] CPU: 1 PID: 5029 Comm: syz.0.36 Not tainted syzkaller #0 [ 81.284480][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.286048][ T5029] Call trace: [ 81.286532][ T5029] dump_backtrace+0x0/0x43c [ 81.287184][ T5029] show_stack+0x2c/0x3c [ 81.287792][ T5029] __dump_stack+0x30/0x40 [ 81.288451][ T5029] dump_stack_lvl+0xf8/0x160 [ 81.289152][ T5029] dump_stack+0x1c/0x5c [ 81.289810][ T5029] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.290660][ T5029] dccp_xmit_packet+0x298/0x448 [ 81.291437][ T5029] dccp_write_xmit+0x118/0x1d0 [ 81.292171][ T5029] dccp_sendmsg+0x538/0x8a8 [ 81.292895][ T5029] inet_sendmsg+0x154/0x284 [ 81.293637][ T5029] __sys_sendto+0x2e8/0x3d8 [ 81.294365][ T5029] __arm64_sys_sendto+0xd8/0xf8 [ 81.295192][ T5029] invoke_syscall+0x98/0x2b8 [ 81.295882][ T5029] el0_svc_common+0x138/0x258 [ 81.296596][ T5029] do_el0_svc+0x58/0x14c [ 81.297283][ T5029] el0_svc+0x78/0x1e0 [ 81.297976][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 81.298741][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 81.309009][ T5031] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.315817][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.317646][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.318769][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.320377][ T5031] Call trace: [ 81.320856][ T5031] dump_backtrace+0x0/0x43c [ 81.321484][ T5031] show_stack+0x2c/0x3c [ 81.322103][ T5031] __dump_stack+0x30/0x40 [ 81.322803][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.323594][ T5031] dump_stack+0x1c/0x5c [ 81.324293][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.325221][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.325942][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.326720][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.327434][ T5031] inet_sendmsg+0x154/0x284 [ 81.328151][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.328863][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.329591][ T5031] invoke_syscall+0x98/0x2b8 [ 81.330354][ T5031] el0_svc_common+0x138/0x258 [ 81.331193][ T5031] do_el0_svc+0x58/0x14c [ 81.331900][ T5031] el0_svc+0x78/0x1e0 [ 81.332567][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.333339][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.334466][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.336074][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.337053][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.338517][ T5031] Call trace: [ 81.339012][ T5031] dump_backtrace+0x0/0x43c [ 81.339666][ T5031] show_stack+0x2c/0x3c [ 81.340215][ T5031] __dump_stack+0x30/0x40 [ 81.340781][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.341388][ T5031] dump_stack+0x1c/0x5c [ 81.342016][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.342836][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.343562][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.344298][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.344976][ T5031] inet_sendmsg+0x154/0x284 [ 81.345577][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.346219][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.346909][ T5031] invoke_syscall+0x98/0x2b8 [ 81.347635][ T5031] el0_svc_common+0x138/0x258 [ 81.348306][ T5031] do_el0_svc+0x58/0x14c [ 81.348957][ T5031] el0_svc+0x78/0x1e0 [ 81.349599][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.350363][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.351324][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.353183][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.354138][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.355478][ T5031] Call trace: [ 81.355927][ T5031] dump_backtrace+0x0/0x43c [ 81.356568][ T5031] show_stack+0x2c/0x3c [ 81.357196][ T5031] __dump_stack+0x30/0x40 [ 81.357902][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.358654][ T5031] dump_stack+0x1c/0x5c [ 81.359312][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.360240][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.361102][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.361918][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.362694][ T5031] inet_sendmsg+0x154/0x284 [ 81.363411][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.364076][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.364805][ T5031] invoke_syscall+0x98/0x2b8 [ 81.365509][ T5031] el0_svc_common+0x138/0x258 [ 81.366220][ T5031] do_el0_svc+0x58/0x14c [ 81.366831][ T5031] el0_svc+0x78/0x1e0 [ 81.367438][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.368181][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.369316][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.370928][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.371963][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.373411][ T5031] Call trace: [ 81.373930][ T5031] dump_backtrace+0x0/0x43c [ 81.374626][ T5031] show_stack+0x2c/0x3c [ 81.375253][ T5031] __dump_stack+0x30/0x40 [ 81.375898][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.376680][ T5031] dump_stack+0x1c/0x5c [ 81.377381][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.378222][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.378921][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.379725][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.380475][ T5031] inet_sendmsg+0x154/0x284 [ 81.381212][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.381886][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.382635][ T5031] invoke_syscall+0x98/0x2b8 [ 81.383357][ T5031] el0_svc_common+0x138/0x258 [ 81.384091][ T5031] do_el0_svc+0x58/0x14c [ 81.384763][ T5031] el0_svc+0x78/0x1e0 [ 81.385380][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.386123][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.386946][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.388617][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.389633][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.391104][ T5031] Call trace: [ 81.391544][ T5031] dump_backtrace+0x0/0x43c [ 81.392218][ T5031] show_stack+0x2c/0x3c [ 81.392813][ T5031] __dump_stack+0x30/0x40 [ 81.393462][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.394171][ T5031] dump_stack+0x1c/0x5c [ 81.394852][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.395663][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.396420][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.397112][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.397870][ T5031] inet_sendmsg+0x154/0x284 [ 81.398612][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.399357][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.400162][ T5031] invoke_syscall+0x98/0x2b8 [ 81.400913][ T5031] el0_svc_common+0x138/0x258 [ 81.401683][ T5031] do_el0_svc+0x58/0x14c [ 81.402336][ T5031] el0_svc+0x78/0x1e0 [ 81.402977][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.403746][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.404628][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.406341][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.407517][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.409058][ T5031] Call trace: [ 81.409586][ T5031] dump_backtrace+0x0/0x43c [ 81.410321][ T5031] show_stack+0x2c/0x3c [ 81.411002][ T5031] __dump_stack+0x30/0x40 [ 81.411691][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.412376][ T5031] dump_stack+0x1c/0x5c [ 81.413068][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.413860][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.414557][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.415198][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.415875][ T5031] inet_sendmsg+0x154/0x284 [ 81.416541][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.417170][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.417995][ T5031] invoke_syscall+0x98/0x2b8 [ 81.418781][ T5031] el0_svc_common+0x138/0x258 [ 81.419555][ T5031] do_el0_svc+0x58/0x14c [ 81.420229][ T5031] el0_svc+0x78/0x1e0 [ 81.420901][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.421707][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.422662][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.424402][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.425522][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.427056][ T5031] Call trace: [ 81.427542][ T5031] dump_backtrace+0x0/0x43c [ 81.428214][ T5031] show_stack+0x2c/0x3c [ 81.428900][ T5031] __dump_stack+0x30/0x40 [ 81.429553][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.430210][ T5031] dump_stack+0x1c/0x5c [ 81.430842][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.431647][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.432409][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.433176][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.433933][ T5031] inet_sendmsg+0x154/0x284 [ 81.434704][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.435448][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.436214][ T5031] invoke_syscall+0x98/0x2b8 [ 81.436875][ T5031] el0_svc_common+0x138/0x258 [ 81.437603][ T5031] do_el0_svc+0x58/0x14c [ 81.438299][ T5031] el0_svc+0x78/0x1e0 [ 81.438983][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.439779][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.440702][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.442804][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.443866][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.445284][ T5031] Call trace: [ 81.445762][ T5031] dump_backtrace+0x0/0x43c [ 81.446357][ T5031] show_stack+0x2c/0x3c [ 81.446985][ T5031] __dump_stack+0x30/0x40 [ 81.447588][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.448320][ T5031] dump_stack+0x1c/0x5c [ 81.448985][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.449858][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.450560][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.451282][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.452026][ T5031] inet_sendmsg+0x154/0x284 [ 81.452714][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.453389][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.454074][ T5031] invoke_syscall+0x98/0x2b8 [ 81.454764][ T5031] el0_svc_common+0x138/0x258 [ 81.455461][ T5031] do_el0_svc+0x58/0x14c [ 81.456127][ T5031] el0_svc+0x78/0x1e0 [ 81.456793][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.457634][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.458641][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.460298][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.461318][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.462870][ T5031] Call trace: [ 81.463370][ T5031] dump_backtrace+0x0/0x43c [ 81.464042][ T5031] show_stack+0x2c/0x3c [ 81.464695][ T5031] __dump_stack+0x30/0x40 [ 81.465338][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.466067][ T5031] dump_stack+0x1c/0x5c [ 81.466755][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.467665][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.468459][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.469168][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.469871][ T5031] inet_sendmsg+0x154/0x284 [ 81.470611][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.471392][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.472189][ T5031] invoke_syscall+0x98/0x2b8 [ 81.473019][ T5031] el0_svc_common+0x138/0x258 [ 81.473827][ T5031] do_el0_svc+0x58/0x14c [ 81.474515][ T5031] el0_svc+0x78/0x1e0 [ 81.475130][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.475931][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.476846][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.478593][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.479768][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.481324][ T5031] Call trace: [ 81.481849][ T5031] dump_backtrace+0x0/0x43c [ 81.482580][ T5031] show_stack+0x2c/0x3c [ 81.483278][ T5031] __dump_stack+0x30/0x40 [ 81.484024][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.484759][ T5031] dump_stack+0x1c/0x5c [ 81.485430][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.486259][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.487034][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.487805][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.488552][ T5031] inet_sendmsg+0x154/0x284 [ 81.489264][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.489997][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.490700][ T5031] invoke_syscall+0x98/0x2b8 [ 81.491479][ T5031] el0_svc_common+0x138/0x258 [ 81.492175][ T5031] do_el0_svc+0x58/0x14c [ 81.492892][ T5031] el0_svc+0x78/0x1e0 [ 81.493546][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.494337][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.495214][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.496972][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.498155][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.499603][ T5031] Call trace: [ 81.500140][ T5031] dump_backtrace+0x0/0x43c [ 81.500851][ T5031] show_stack+0x2c/0x3c [ 81.501492][ T5031] __dump_stack+0x30/0x40 [ 81.502182][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.502951][ T5031] dump_stack+0x1c/0x5c [ 81.503613][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.504413][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.505137][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.505863][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.506591][ T5031] inet_sendmsg+0x154/0x284 [ 81.507360][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.508047][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.508885][ T5031] invoke_syscall+0x98/0x2b8 [ 81.509656][ T5031] el0_svc_common+0x138/0x258 [ 81.510452][ T5031] do_el0_svc+0x58/0x14c [ 81.511122][ T5031] el0_svc+0x78/0x1e0 [ 81.511743][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.512551][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.513468][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.515082][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.516122][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.517538][ T5031] Call trace: [ 81.518026][ T5031] dump_backtrace+0x0/0x43c [ 81.518613][ T5031] show_stack+0x2c/0x3c [ 81.519197][ T5031] __dump_stack+0x30/0x40 [ 81.519882][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.520617][ T5031] dump_stack+0x1c/0x5c [ 81.521335][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.522190][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.522941][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.523698][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.524402][ T5031] inet_sendmsg+0x154/0x284 [ 81.525126][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.525829][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.526670][ T5031] invoke_syscall+0x98/0x2b8 [ 81.527406][ T5031] el0_svc_common+0x138/0x258 [ 81.528148][ T5031] do_el0_svc+0x58/0x14c [ 81.528774][ T5031] el0_svc+0x78/0x1e0 [ 81.529414][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.530229][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.531377][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.533074][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.534205][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.535686][ T5031] Call trace: [ 81.536175][ T5031] dump_backtrace+0x0/0x43c [ 81.536801][ T5031] show_stack+0x2c/0x3c [ 81.537422][ T5031] __dump_stack+0x30/0x40 [ 81.538096][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.538745][ T5031] dump_stack+0x1c/0x5c [ 81.539266][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.540096][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.540818][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.541507][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.542127][ T5031] inet_sendmsg+0x154/0x284 [ 81.542817][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.543533][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.544325][ T5031] invoke_syscall+0x98/0x2b8 [ 81.545038][ T5031] el0_svc_common+0x138/0x258 [ 81.545823][ T5031] do_el0_svc+0x58/0x14c [ 81.546548][ T5031] el0_svc+0x78/0x1e0 [ 81.547198][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.547951][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.548779][ T5031] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.550309][ T5031] CPU: 1 PID: 5031 Comm: syz.0.37 Not tainted syzkaller #0 [ 81.551288][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.552735][ T5031] Call trace: [ 81.553218][ T5031] dump_backtrace+0x0/0x43c [ 81.553946][ T5031] show_stack+0x2c/0x3c [ 81.554586][ T5031] __dump_stack+0x30/0x40 [ 81.555280][ T5031] dump_stack_lvl+0xf8/0x160 [ 81.556024][ T5031] dump_stack+0x1c/0x5c [ 81.556667][ T5031] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.557507][ T5031] dccp_xmit_packet+0x298/0x448 [ 81.558206][ T5031] dccp_write_xmit+0x118/0x1d0 [ 81.558909][ T5031] dccp_sendmsg+0x538/0x8a8 [ 81.559567][ T5031] inet_sendmsg+0x154/0x284 [ 81.560193][ T5031] __sys_sendto+0x2e8/0x3d8 [ 81.560923][ T5031] __arm64_sys_sendto+0xd8/0xf8 [ 81.561743][ T5031] invoke_syscall+0x98/0x2b8 [ 81.562521][ T5031] el0_svc_common+0x138/0x258 [ 81.563338][ T5031] do_el0_svc+0x58/0x14c [ 81.564024][ T5031] el0_svc+0x78/0x1e0 [ 81.564613][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 81.565390][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 81.576126][ T5033] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.582646][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.584275][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.585288][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.586939][ T5033] Call trace: [ 81.587417][ T5033] dump_backtrace+0x0/0x43c [ 81.588054][ T5033] show_stack+0x2c/0x3c [ 81.588641][ T5033] __dump_stack+0x30/0x40 [ 81.589292][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.590017][ T5033] dump_stack+0x1c/0x5c [ 81.590637][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.591446][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.592132][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.592876][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.593639][ T5033] inet_sendmsg+0x154/0x284 [ 81.594374][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.595123][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.595872][ T5033] invoke_syscall+0x98/0x2b8 [ 81.596565][ T5033] el0_svc_common+0x138/0x258 [ 81.597242][ T5033] do_el0_svc+0x58/0x14c [ 81.597938][ T5033] el0_svc+0x78/0x1e0 [ 81.598525][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.599274][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.600086][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.601699][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.602758][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.604191][ T5033] Call trace: [ 81.604689][ T5033] dump_backtrace+0x0/0x43c [ 81.605385][ T5033] show_stack+0x2c/0x3c [ 81.606060][ T5033] __dump_stack+0x30/0x40 [ 81.606802][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.607526][ T5033] dump_stack+0x1c/0x5c [ 81.608201][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.609073][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.609855][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.610594][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.611305][ T5033] inet_sendmsg+0x154/0x284 [ 81.612024][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.612763][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.613511][ T5033] invoke_syscall+0x98/0x2b8 [ 81.614204][ T5033] el0_svc_common+0x138/0x258 [ 81.614922][ T5033] do_el0_svc+0x58/0x14c [ 81.615543][ T5033] el0_svc+0x78/0x1e0 [ 81.616149][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.616878][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.618202][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.619869][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.620980][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.622508][ T5033] Call trace: [ 81.623046][ T5033] dump_backtrace+0x0/0x43c [ 81.623755][ T5033] show_stack+0x2c/0x3c [ 81.624387][ T5033] __dump_stack+0x30/0x40 [ 81.625101][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.625752][ T5033] dump_stack+0x1c/0x5c [ 81.626352][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.627185][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.627968][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.628733][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.629434][ T5033] inet_sendmsg+0x154/0x284 [ 81.630138][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.630855][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.631604][ T5033] invoke_syscall+0x98/0x2b8 [ 81.632337][ T5033] el0_svc_common+0x138/0x258 [ 81.633009][ T5033] do_el0_svc+0x58/0x14c [ 81.633637][ T5033] el0_svc+0x78/0x1e0 [ 81.634221][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.634923][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.635786][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.637494][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.638602][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.640053][ T5033] Call trace: [ 81.640532][ T5033] dump_backtrace+0x0/0x43c [ 81.641205][ T5033] show_stack+0x2c/0x3c [ 81.641810][ T5033] __dump_stack+0x30/0x40 [ 81.642484][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.643194][ T5033] dump_stack+0x1c/0x5c [ 81.643888][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.644715][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.645495][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.646177][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.646934][ T5033] inet_sendmsg+0x154/0x284 [ 81.647632][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.648361][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.649089][ T5033] invoke_syscall+0x98/0x2b8 [ 81.649829][ T5033] el0_svc_common+0x138/0x258 [ 81.650597][ T5033] do_el0_svc+0x58/0x14c [ 81.651274][ T5033] el0_svc+0x78/0x1e0 [ 81.651895][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.652657][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.653551][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.655208][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.656260][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.657650][ T5033] Call trace: [ 81.658109][ T5033] dump_backtrace+0x0/0x43c [ 81.658722][ T5033] show_stack+0x2c/0x3c [ 81.659286][ T5033] __dump_stack+0x30/0x40 [ 81.659882][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.660586][ T5033] dump_stack+0x1c/0x5c [ 81.661171][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.661977][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.662669][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.663405][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.664101][ T5033] inet_sendmsg+0x154/0x284 [ 81.664834][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.665534][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.666332][ T5033] invoke_syscall+0x98/0x2b8 [ 81.667000][ T5033] el0_svc_common+0x138/0x258 [ 81.667681][ T5033] do_el0_svc+0x58/0x14c [ 81.668340][ T5033] el0_svc+0x78/0x1e0 [ 81.668883][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.669600][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.670422][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.672004][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.673052][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.674419][ T5033] Call trace: [ 81.674921][ T5033] dump_backtrace+0x0/0x43c [ 81.675577][ T5033] show_stack+0x2c/0x3c [ 81.676169][ T5033] __dump_stack+0x30/0x40 [ 81.676784][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.677480][ T5033] dump_stack+0x1c/0x5c [ 81.678075][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.678852][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.679592][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.680309][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.680947][ T5033] inet_sendmsg+0x154/0x284 [ 81.681638][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.682254][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.683009][ T5033] invoke_syscall+0x98/0x2b8 [ 81.683681][ T5033] el0_svc_common+0x138/0x258 [ 81.684374][ T5033] do_el0_svc+0x58/0x14c [ 81.685034][ T5033] el0_svc+0x78/0x1e0 [ 81.685629][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.686355][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.687114][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.688684][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.689648][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.691104][ T5033] Call trace: [ 81.691552][ T5033] dump_backtrace+0x0/0x43c [ 81.692194][ T5033] show_stack+0x2c/0x3c [ 81.692829][ T5033] __dump_stack+0x30/0x40 [ 81.693514][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.694200][ T5033] dump_stack+0x1c/0x5c [ 81.694849][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.695673][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.696385][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.697076][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.697707][ T5033] inet_sendmsg+0x154/0x284 [ 81.698375][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.699030][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.699706][ T5033] invoke_syscall+0x98/0x2b8 [ 81.700358][ T5033] el0_svc_common+0x138/0x258 [ 81.701011][ T5033] do_el0_svc+0x58/0x14c [ 81.701608][ T5033] el0_svc+0x78/0x1e0 [ 81.702158][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.702854][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.703623][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.705259][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.706298][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.707692][ T5033] Call trace: [ 81.708163][ T5033] dump_backtrace+0x0/0x43c [ 81.708790][ T5033] show_stack+0x2c/0x3c [ 81.709359][ T5033] __dump_stack+0x30/0x40 [ 81.709984][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.710640][ T5033] dump_stack+0x1c/0x5c [ 81.711225][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.711938][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.712639][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.713311][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.713930][ T5033] inet_sendmsg+0x154/0x284 [ 81.714572][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.715235][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.716010][ T5033] invoke_syscall+0x98/0x2b8 [ 81.716722][ T5033] el0_svc_common+0x138/0x258 [ 81.717483][ T5033] do_el0_svc+0x58/0x14c [ 81.718139][ T5033] el0_svc+0x78/0x1e0 [ 81.718777][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.719535][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.720428][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.722219][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.723282][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.724775][ T5033] Call trace: [ 81.725217][ T5033] dump_backtrace+0x0/0x43c [ 81.725834][ T5033] show_stack+0x2c/0x3c [ 81.726424][ T5033] __dump_stack+0x30/0x40 [ 81.727076][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.727792][ T5033] dump_stack+0x1c/0x5c [ 81.728426][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.729264][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.730056][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.730797][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.731483][ T5033] inet_sendmsg+0x154/0x284 [ 81.732180][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.732919][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.733658][ T5033] invoke_syscall+0x98/0x2b8 [ 81.734346][ T5033] el0_svc_common+0x138/0x258 [ 81.735067][ T5033] do_el0_svc+0x58/0x14c [ 81.735750][ T5033] el0_svc+0x78/0x1e0 [ 81.736384][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.737148][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.737971][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.739658][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.740695][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.742072][ T5033] Call trace: [ 81.742598][ T5033] dump_backtrace+0x0/0x43c [ 81.743286][ T5033] show_stack+0x2c/0x3c [ 81.743940][ T5033] __dump_stack+0x30/0x40 [ 81.744594][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.745311][ T5033] dump_stack+0x1c/0x5c [ 81.745983][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.746873][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.747684][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.748457][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.749188][ T5033] inet_sendmsg+0x154/0x284 [ 81.749908][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.750649][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.751435][ T5033] invoke_syscall+0x98/0x2b8 [ 81.752168][ T5033] el0_svc_common+0x138/0x258 [ 81.752970][ T5033] do_el0_svc+0x58/0x14c [ 81.753599][ T5033] el0_svc+0x78/0x1e0 [ 81.754208][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.755001][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.755980][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.757519][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.758558][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.759948][ T5033] Call trace: [ 81.760377][ T5033] dump_backtrace+0x0/0x43c [ 81.761068][ T5033] show_stack+0x2c/0x3c [ 81.761704][ T5033] __dump_stack+0x30/0x40 [ 81.762343][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.763039][ T5033] dump_stack+0x1c/0x5c [ 81.763750][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.764637][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.765397][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.766158][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.766859][ T5033] inet_sendmsg+0x154/0x284 [ 81.767543][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.768193][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.768939][ T5033] invoke_syscall+0x98/0x2b8 [ 81.769659][ T5033] el0_svc_common+0x138/0x258 [ 81.770361][ T5033] do_el0_svc+0x58/0x14c [ 81.770947][ T5033] el0_svc+0x78/0x1e0 [ 81.771520][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.772307][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.773507][ T5033] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.775097][ T5033] CPU: 1 PID: 5033 Comm: syz.0.38 Not tainted syzkaller #0 [ 81.776120][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.777604][ T5033] Call trace: [ 81.778076][ T5033] dump_backtrace+0x0/0x43c [ 81.778784][ T5033] show_stack+0x2c/0x3c [ 81.779426][ T5033] __dump_stack+0x30/0x40 [ 81.780129][ T5033] dump_stack_lvl+0xf8/0x160 [ 81.780846][ T5033] dump_stack+0x1c/0x5c [ 81.781503][ T5033] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.782326][ T5033] dccp_xmit_packet+0x298/0x448 [ 81.783060][ T5033] dccp_write_xmit+0x118/0x1d0 [ 81.783754][ T5033] dccp_sendmsg+0x538/0x8a8 [ 81.784393][ T5033] inet_sendmsg+0x154/0x284 [ 81.785041][ T5033] __sys_sendto+0x2e8/0x3d8 [ 81.785693][ T5033] __arm64_sys_sendto+0xd8/0xf8 [ 81.786447][ T5033] invoke_syscall+0x98/0x2b8 [ 81.787127][ T5033] el0_svc_common+0x138/0x258 [ 81.787908][ T5033] do_el0_svc+0x58/0x14c [ 81.788553][ T5033] el0_svc+0x78/0x1e0 [ 81.789145][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 81.789959][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 81.800658][ T5035] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.807528][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.809315][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.810342][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.811728][ T5035] Call trace: [ 81.812188][ T5035] dump_backtrace+0x0/0x43c [ 81.812827][ T5035] show_stack+0x2c/0x3c [ 81.813421][ T5035] __dump_stack+0x30/0x40 [ 81.814053][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.814704][ T5035] dump_stack+0x1c/0x5c [ 81.815352][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.816119][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.816833][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.817518][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.818264][ T5035] inet_sendmsg+0x154/0x284 [ 81.819008][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.819747][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.820548][ T5035] invoke_syscall+0x98/0x2b8 [ 81.821210][ T5035] el0_svc_common+0x138/0x258 [ 81.821935][ T5035] do_el0_svc+0x58/0x14c [ 81.822549][ T5035] el0_svc+0x78/0x1e0 [ 81.823193][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.823882][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.824875][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.826496][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.827597][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.829096][ T5035] Call trace: [ 81.829594][ T5035] dump_backtrace+0x0/0x43c [ 81.830311][ T5035] show_stack+0x2c/0x3c [ 81.830918][ T5035] __dump_stack+0x30/0x40 [ 81.831598][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.832279][ T5035] dump_stack+0x1c/0x5c [ 81.832978][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.833835][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.834554][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.835233][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.835963][ T5035] inet_sendmsg+0x154/0x284 [ 81.836609][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.837266][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.837971][ T5035] invoke_syscall+0x98/0x2b8 [ 81.838626][ T5035] el0_svc_common+0x138/0x258 [ 81.839372][ T5035] do_el0_svc+0x58/0x14c [ 81.840021][ T5035] el0_svc+0x78/0x1e0 [ 81.840619][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.841410][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.842816][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.844400][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.845555][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.847061][ T5035] Call trace: [ 81.847548][ T5035] dump_backtrace+0x0/0x43c [ 81.848241][ T5035] show_stack+0x2c/0x3c [ 81.848856][ T5035] __dump_stack+0x30/0x40 [ 81.849590][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.850312][ T5035] dump_stack+0x1c/0x5c [ 81.850895][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.851714][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.852428][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.853141][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.853774][ T5035] inet_sendmsg+0x154/0x284 [ 81.854518][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.855239][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.856008][ T5035] invoke_syscall+0x98/0x2b8 [ 81.856766][ T5035] el0_svc_common+0x138/0x258 [ 81.857529][ T5035] do_el0_svc+0x58/0x14c [ 81.858176][ T5035] el0_svc+0x78/0x1e0 [ 81.858800][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.859599][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.860489][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.862432][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.863524][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.865170][ T5035] Call trace: [ 81.865691][ T5035] dump_backtrace+0x0/0x43c [ 81.866348][ T5035] show_stack+0x2c/0x3c [ 81.866996][ T5035] __dump_stack+0x30/0x40 [ 81.867656][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.868366][ T5035] dump_stack+0x1c/0x5c [ 81.869026][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.869918][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.870707][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.871439][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.872172][ T5035] inet_sendmsg+0x154/0x284 [ 81.872868][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.873579][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.874275][ T5035] invoke_syscall+0x98/0x2b8 [ 81.874928][ T5035] el0_svc_common+0x138/0x258 [ 81.875578][ T5035] do_el0_svc+0x58/0x14c [ 81.876174][ T5035] el0_svc+0x78/0x1e0 [ 81.876778][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.877457][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.878305][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.879860][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.880885][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.882262][ T5035] Call trace: [ 81.882731][ T5035] dump_backtrace+0x0/0x43c [ 81.883414][ T5035] show_stack+0x2c/0x3c [ 81.884055][ T5035] __dump_stack+0x30/0x40 [ 81.884680][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.885360][ T5035] dump_stack+0x1c/0x5c [ 81.886011][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.886875][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.887645][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.888398][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.889126][ T5035] inet_sendmsg+0x154/0x284 [ 81.889861][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.890633][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.891441][ T5035] invoke_syscall+0x98/0x2b8 [ 81.892187][ T5035] el0_svc_common+0x138/0x258 [ 81.892943][ T5035] do_el0_svc+0x58/0x14c [ 81.893556][ T5035] el0_svc+0x78/0x1e0 [ 81.894164][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.894959][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.895869][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.897359][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.898309][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.899747][ T5035] Call trace: [ 81.900221][ T5035] dump_backtrace+0x0/0x43c [ 81.900844][ T5035] show_stack+0x2c/0x3c [ 81.901417][ T5035] __dump_stack+0x30/0x40 [ 81.902119][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.902865][ T5035] dump_stack+0x1c/0x5c [ 81.903508][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.904345][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.905107][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.905746][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.906451][ T5035] inet_sendmsg+0x154/0x284 [ 81.907161][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.907885][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.908685][ T5035] invoke_syscall+0x98/0x2b8 [ 81.909382][ T5035] el0_svc_common+0x138/0x258 [ 81.910093][ T5035] do_el0_svc+0x58/0x14c [ 81.910734][ T5035] el0_svc+0x78/0x1e0 [ 81.911378][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.912132][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.912962][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.914558][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.915579][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.916945][ T5035] Call trace: [ 81.917450][ T5035] dump_backtrace+0x0/0x43c [ 81.918129][ T5035] show_stack+0x2c/0x3c [ 81.918756][ T5035] __dump_stack+0x30/0x40 [ 81.919424][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.920130][ T5035] dump_stack+0x1c/0x5c [ 81.920833][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.921696][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.922476][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.923218][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.923884][ T5035] inet_sendmsg+0x154/0x284 [ 81.924528][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.925240][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.925959][ T5035] invoke_syscall+0x98/0x2b8 [ 81.926591][ T5035] el0_svc_common+0x138/0x258 [ 81.927245][ T5035] do_el0_svc+0x58/0x14c [ 81.927899][ T5035] el0_svc+0x78/0x1e0 [ 81.928477][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.929246][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.930127][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.931905][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.933057][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.934628][ T5035] Call trace: [ 81.935171][ T5035] dump_backtrace+0x0/0x43c [ 81.935892][ T5035] show_stack+0x2c/0x3c [ 81.936532][ T5035] __dump_stack+0x30/0x40 [ 81.937221][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.937994][ T5035] dump_stack+0x1c/0x5c [ 81.938626][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.939494][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.940287][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.941043][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.941770][ T5035] inet_sendmsg+0x154/0x284 [ 81.942475][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.943191][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.943927][ T5035] invoke_syscall+0x98/0x2b8 [ 81.944640][ T5035] el0_svc_common+0x138/0x258 [ 81.945367][ T5035] do_el0_svc+0x58/0x14c [ 81.946060][ T5035] el0_svc+0x78/0x1e0 [ 81.946692][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.947498][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.948356][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.950028][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.951086][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.952542][ T5035] Call trace: [ 81.953004][ T5035] dump_backtrace+0x0/0x43c [ 81.953689][ T5035] show_stack+0x2c/0x3c [ 81.954271][ T5035] __dump_stack+0x30/0x40 [ 81.954959][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.955638][ T5035] dump_stack+0x1c/0x5c [ 81.956249][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.957114][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.957849][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.958554][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.959260][ T5035] inet_sendmsg+0x154/0x284 [ 81.959961][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.960643][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.961343][ T5035] invoke_syscall+0x98/0x2b8 [ 81.962029][ T5035] el0_svc_common+0x138/0x258 [ 81.962762][ T5035] do_el0_svc+0x58/0x14c [ 81.963481][ T5035] el0_svc+0x78/0x1e0 [ 81.964085][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.964934][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.965784][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.967411][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.968443][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.969923][ T5035] Call trace: [ 81.970421][ T5035] dump_backtrace+0x0/0x43c [ 81.971120][ T5035] show_stack+0x2c/0x3c [ 81.971794][ T5035] __dump_stack+0x30/0x40 [ 81.972477][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.973216][ T5035] dump_stack+0x1c/0x5c [ 81.973894][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.974659][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.975417][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.976144][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.976862][ T5035] inet_sendmsg+0x154/0x284 [ 81.977546][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.978193][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.978931][ T5035] invoke_syscall+0x98/0x2b8 [ 81.979685][ T5035] el0_svc_common+0x138/0x258 [ 81.980376][ T5035] do_el0_svc+0x58/0x14c [ 81.981041][ T5035] el0_svc+0x78/0x1e0 [ 81.981692][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 81.982532][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 81.983501][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.985207][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 81.986309][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.987813][ T5035] Call trace: [ 81.988289][ T5035] dump_backtrace+0x0/0x43c [ 81.988964][ T5035] show_stack+0x2c/0x3c [ 81.989880][ T5035] __dump_stack+0x30/0x40 [ 81.990497][ T5035] dump_stack_lvl+0xf8/0x160 [ 81.991230][ T5035] dump_stack+0x1c/0x5c [ 81.991864][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.992785][ T5035] dccp_xmit_packet+0x298/0x448 [ 81.993598][ T5035] dccp_write_xmit+0x118/0x1d0 [ 81.994383][ T5035] dccp_sendmsg+0x538/0x8a8 [ 81.995105][ T5035] inet_sendmsg+0x154/0x284 [ 81.995766][ T5035] __sys_sendto+0x2e8/0x3d8 [ 81.996479][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 81.997265][ T5035] invoke_syscall+0x98/0x2b8 [ 81.997951][ T5035] el0_svc_common+0x138/0x258 [ 81.998700][ T5035] do_el0_svc+0x58/0x14c [ 81.999364][ T5035] el0_svc+0x78/0x1e0 [ 82.000043][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.000852][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.001673][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.003426][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.004448][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.005901][ T5035] Call trace: [ 82.006390][ T5035] dump_backtrace+0x0/0x43c [ 82.007059][ T5035] show_stack+0x2c/0x3c [ 82.007684][ T5035] __dump_stack+0x30/0x40 [ 82.008371][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.009063][ T5035] dump_stack+0x1c/0x5c [ 82.009698][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.010589][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.011316][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.011967][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.012596][ T5035] inet_sendmsg+0x154/0x284 [ 82.013200][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.013843][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.014492][ T5035] invoke_syscall+0x98/0x2b8 [ 82.015156][ T5035] el0_svc_common+0x138/0x258 [ 82.015940][ T5035] do_el0_svc+0x58/0x14c [ 82.016579][ T5035] el0_svc+0x78/0x1e0 [ 82.017180][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.017973][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.018801][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.020558][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.021746][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.023379][ T5035] Call trace: [ 82.023911][ T5035] dump_backtrace+0x0/0x43c [ 82.024639][ T5035] show_stack+0x2c/0x3c [ 82.025276][ T5035] __dump_stack+0x30/0x40 [ 82.025958][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.026765][ T5035] dump_stack+0x1c/0x5c [ 82.027387][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.028186][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.028937][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.029630][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.030288][ T5035] inet_sendmsg+0x154/0x284 [ 82.030911][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.031512][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.032179][ T5035] invoke_syscall+0x98/0x2b8 [ 82.032807][ T5035] el0_svc_common+0x138/0x258 [ 82.033545][ T5035] do_el0_svc+0x58/0x14c [ 82.034155][ T5035] el0_svc+0x78/0x1e0 [ 82.034716][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.035454][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.036403][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.038052][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.039098][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.040594][ T5035] Call trace: [ 82.041086][ T5035] dump_backtrace+0x0/0x43c [ 82.041808][ T5035] show_stack+0x2c/0x3c [ 82.042487][ T5035] __dump_stack+0x30/0x40 [ 82.043237][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.044001][ T5035] dump_stack+0x1c/0x5c [ 82.044692][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.045596][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.046388][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.047152][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.047873][ T5035] inet_sendmsg+0x154/0x284 [ 82.048559][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.049260][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.050003][ T5035] invoke_syscall+0x98/0x2b8 [ 82.050680][ T5035] el0_svc_common+0x138/0x258 [ 82.051440][ T5035] do_el0_svc+0x58/0x14c [ 82.052046][ T5035] el0_svc+0x78/0x1e0 [ 82.052623][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.053380][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.054242][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.055875][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.056931][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.058271][ T5035] Call trace: [ 82.058750][ T5035] dump_backtrace+0x0/0x43c [ 82.059432][ T5035] show_stack+0x2c/0x3c [ 82.060060][ T5035] __dump_stack+0x30/0x40 [ 82.060687][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.061389][ T5035] dump_stack+0x1c/0x5c [ 82.062066][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.062846][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.063555][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.064273][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.065039][ T5035] inet_sendmsg+0x154/0x284 [ 82.065716][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.066439][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.067261][ T5035] invoke_syscall+0x98/0x2b8 [ 82.067992][ T5035] el0_svc_common+0x138/0x258 [ 82.068710][ T5035] do_el0_svc+0x58/0x14c [ 82.069361][ T5035] el0_svc+0x78/0x1e0 [ 82.070012][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.070826][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.071718][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.073486][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.074521][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.075991][ T5035] Call trace: [ 82.076450][ T5035] dump_backtrace+0x0/0x43c [ 82.077177][ T5035] show_stack+0x2c/0x3c [ 82.077847][ T5035] __dump_stack+0x30/0x40 [ 82.078482][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.079160][ T5035] dump_stack+0x1c/0x5c [ 82.079818][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.080603][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.081292][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.082008][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.082667][ T5035] inet_sendmsg+0x154/0x284 [ 82.083344][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.084039][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.084784][ T5035] invoke_syscall+0x98/0x2b8 [ 82.085461][ T5035] el0_svc_common+0x138/0x258 [ 82.086169][ T5035] do_el0_svc+0x58/0x14c [ 82.086775][ T5035] el0_svc+0x78/0x1e0 [ 82.087387][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.088207][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.089115][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.090719][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.091888][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.093532][ T5035] Call trace: [ 82.094047][ T5035] dump_backtrace+0x0/0x43c [ 82.094758][ T5035] show_stack+0x2c/0x3c [ 82.095339][ T5035] __dump_stack+0x30/0x40 [ 82.095963][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.096606][ T5035] dump_stack+0x1c/0x5c [ 82.097256][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.098003][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.098665][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.099367][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.099998][ T5035] inet_sendmsg+0x154/0x284 [ 82.100645][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.101319][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.102015][ T5035] invoke_syscall+0x98/0x2b8 [ 82.102644][ T5035] el0_svc_common+0x138/0x258 [ 82.103331][ T5035] do_el0_svc+0x58/0x14c [ 82.103968][ T5035] el0_svc+0x78/0x1e0 [ 82.104543][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.105309][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.106662][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.108292][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.109291][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.110674][ T5035] Call trace: [ 82.111111][ T5035] dump_backtrace+0x0/0x43c [ 82.111711][ T5035] show_stack+0x2c/0x3c [ 82.112327][ T5035] __dump_stack+0x30/0x40 [ 82.112987][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.113694][ T5035] dump_stack+0x1c/0x5c [ 82.114256][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.115088][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.115868][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.116596][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.117319][ T5035] inet_sendmsg+0x154/0x284 [ 82.118058][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.118790][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.119473][ T5035] invoke_syscall+0x98/0x2b8 [ 82.120203][ T5035] el0_svc_common+0x138/0x258 [ 82.120965][ T5035] do_el0_svc+0x58/0x14c [ 82.121628][ T5035] el0_svc+0x78/0x1e0 [ 82.122255][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.123052][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.123921][ T5035] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.125613][ T5035] CPU: 1 PID: 5035 Comm: syz.0.39 Not tainted syzkaller #0 [ 82.126667][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.127992][ T5035] Call trace: [ 82.128474][ T5035] dump_backtrace+0x0/0x43c [ 82.129091][ T5035] show_stack+0x2c/0x3c [ 82.129647][ T5035] __dump_stack+0x30/0x40 [ 82.130334][ T5035] dump_stack_lvl+0xf8/0x160 [ 82.131043][ T5035] dump_stack+0x1c/0x5c [ 82.131615][ T5035] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.132467][ T5035] dccp_xmit_packet+0x298/0x448 [ 82.133225][ T5035] dccp_write_xmit+0x118/0x1d0 [ 82.134032][ T5035] dccp_sendmsg+0x538/0x8a8 [ 82.134736][ T5035] inet_sendmsg+0x154/0x284 [ 82.135429][ T5035] __sys_sendto+0x2e8/0x3d8 [ 82.136121][ T5035] __arm64_sys_sendto+0xd8/0xf8 [ 82.136920][ T5035] invoke_syscall+0x98/0x2b8 [ 82.137644][ T5035] el0_svc_common+0x138/0x258 [ 82.138373][ T5035] do_el0_svc+0x58/0x14c [ 82.139021][ T5035] el0_svc+0x78/0x1e0 [ 82.139649][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 82.140404][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 82.151118][ T5037] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.158095][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.159761][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.160827][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.162469][ T5037] Call trace: [ 82.162988][ T5037] dump_backtrace+0x0/0x43c [ 82.163686][ T5037] show_stack+0x2c/0x3c [ 82.164325][ T5037] __dump_stack+0x30/0x40 [ 82.165047][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.165808][ T5037] dump_stack+0x1c/0x5c [ 82.166507][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.167396][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.168125][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.168829][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.169587][ T5037] inet_sendmsg+0x154/0x284 [ 82.170299][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.170966][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.171742][ T5037] invoke_syscall+0x98/0x2b8 [ 82.172462][ T5037] el0_svc_common+0x138/0x258 [ 82.173237][ T5037] do_el0_svc+0x58/0x14c [ 82.173910][ T5037] el0_svc+0x78/0x1e0 [ 82.174537][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.175418][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.176396][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.178182][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.179261][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.180691][ T5037] Call trace: [ 82.181152][ T5037] dump_backtrace+0x0/0x43c [ 82.181791][ T5037] show_stack+0x2c/0x3c [ 82.182389][ T5037] __dump_stack+0x30/0x40 [ 82.183025][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.183725][ T5037] dump_stack+0x1c/0x5c [ 82.184395][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.185291][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.186031][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.186866][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.187588][ T5037] inet_sendmsg+0x154/0x284 [ 82.188270][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.188952][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.189802][ T5037] invoke_syscall+0x98/0x2b8 [ 82.190566][ T5037] el0_svc_common+0x138/0x258 [ 82.191335][ T5037] do_el0_svc+0x58/0x14c [ 82.192028][ T5037] el0_svc+0x78/0x1e0 [ 82.192657][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.193508][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.194736][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.196384][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.197429][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.198886][ T5037] Call trace: [ 82.199391][ T5037] dump_backtrace+0x0/0x43c [ 82.200083][ T5037] show_stack+0x2c/0x3c [ 82.200687][ T5037] __dump_stack+0x30/0x40 [ 82.201392][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.202167][ T5037] dump_stack+0x1c/0x5c [ 82.202820][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.203742][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.204438][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.205224][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.206009][ T5037] inet_sendmsg+0x154/0x284 [ 82.206740][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.207474][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.208263][ T5037] invoke_syscall+0x98/0x2b8 [ 82.208980][ T5037] el0_svc_common+0x138/0x258 [ 82.209721][ T5037] do_el0_svc+0x58/0x14c [ 82.210355][ T5037] el0_svc+0x78/0x1e0 [ 82.210994][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.211834][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.213098][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.214828][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.215980][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.217403][ T5037] Call trace: [ 82.217908][ T5037] dump_backtrace+0x0/0x43c [ 82.218586][ T5037] show_stack+0x2c/0x3c [ 82.219232][ T5037] __dump_stack+0x30/0x40 [ 82.219878][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.220543][ T5037] dump_stack+0x1c/0x5c [ 82.221187][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.221988][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.222698][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.223365][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.223983][ T5037] inet_sendmsg+0x154/0x284 [ 82.224645][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.225327][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.226079][ T5037] invoke_syscall+0x98/0x2b8 [ 82.226800][ T5037] el0_svc_common+0x138/0x258 [ 82.227464][ T5037] do_el0_svc+0x58/0x14c [ 82.228101][ T5037] el0_svc+0x78/0x1e0 [ 82.228700][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.229469][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.230293][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.231954][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.233084][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.234592][ T5037] Call trace: [ 82.235085][ T5037] dump_backtrace+0x0/0x43c [ 82.235728][ T5037] show_stack+0x2c/0x3c [ 82.236325][ T5037] __dump_stack+0x30/0x40 [ 82.236914][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.237658][ T5037] dump_stack+0x1c/0x5c [ 82.238323][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.239191][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.239971][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.240749][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.241498][ T5037] inet_sendmsg+0x154/0x284 [ 82.242224][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.242936][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.243714][ T5037] invoke_syscall+0x98/0x2b8 [ 82.244427][ T5037] el0_svc_common+0x138/0x258 [ 82.245137][ T5037] do_el0_svc+0x58/0x14c [ 82.245822][ T5037] el0_svc+0x78/0x1e0 [ 82.246449][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.247280][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.248313][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.250045][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.251102][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.252605][ T5037] Call trace: [ 82.253088][ T5037] dump_backtrace+0x0/0x43c [ 82.253788][ T5037] show_stack+0x2c/0x3c [ 82.254411][ T5037] __dump_stack+0x30/0x40 [ 82.255045][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.255690][ T5037] dump_stack+0x1c/0x5c [ 82.256340][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.257188][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.257951][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.258703][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.259409][ T5037] inet_sendmsg+0x154/0x284 [ 82.260144][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.260919][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.261722][ T5037] invoke_syscall+0x98/0x2b8 [ 82.262460][ T5037] el0_svc_common+0x138/0x258 [ 82.263192][ T5037] do_el0_svc+0x58/0x14c [ 82.263882][ T5037] el0_svc+0x78/0x1e0 [ 82.264517][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.265307][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.266152][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.267696][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.268755][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.270277][ T5037] Call trace: [ 82.270739][ T5037] dump_backtrace+0x0/0x43c [ 82.271457][ T5037] show_stack+0x2c/0x3c [ 82.272110][ T5037] __dump_stack+0x30/0x40 [ 82.272781][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.273465][ T5037] dump_stack+0x1c/0x5c [ 82.274116][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.274968][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.275735][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.276455][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.277114][ T5037] inet_sendmsg+0x154/0x284 [ 82.277784][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.278405][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.279145][ T5037] invoke_syscall+0x98/0x2b8 [ 82.279764][ T5037] el0_svc_common+0x138/0x258 [ 82.280462][ T5037] do_el0_svc+0x58/0x14c [ 82.281142][ T5037] el0_svc+0x78/0x1e0 [ 82.281740][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.282489][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.283344][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.284974][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.286135][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.287676][ T5037] Call trace: [ 82.288167][ T5037] dump_backtrace+0x0/0x43c [ 82.288790][ T5037] show_stack+0x2c/0x3c [ 82.289432][ T5037] __dump_stack+0x30/0x40 [ 82.290115][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.290811][ T5037] dump_stack+0x1c/0x5c [ 82.291406][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.292218][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.292977][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.293690][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.294332][ T5037] inet_sendmsg+0x154/0x284 [ 82.295083][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.295752][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.296488][ T5037] invoke_syscall+0x98/0x2b8 [ 82.297149][ T5037] el0_svc_common+0x138/0x258 [ 82.297832][ T5037] do_el0_svc+0x58/0x14c [ 82.298450][ T5037] el0_svc+0x78/0x1e0 [ 82.299059][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.299860][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.300784][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.302531][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.303631][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.305097][ T5037] Call trace: [ 82.305587][ T5037] dump_backtrace+0x0/0x43c [ 82.306257][ T5037] show_stack+0x2c/0x3c [ 82.306847][ T5037] __dump_stack+0x30/0x40 [ 82.307464][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.308110][ T5037] dump_stack+0x1c/0x5c [ 82.308708][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.309572][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.310276][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.310957][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.311660][ T5037] inet_sendmsg+0x154/0x284 [ 82.312342][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.313056][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.313841][ T5037] invoke_syscall+0x98/0x2b8 [ 82.314587][ T5037] el0_svc_common+0x138/0x258 [ 82.315281][ T5037] do_el0_svc+0x58/0x14c [ 82.315984][ T5037] el0_svc+0x78/0x1e0 [ 82.316651][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.317554][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.318468][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.320279][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.321505][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.323096][ T5037] Call trace: [ 82.323594][ T5037] dump_backtrace+0x0/0x43c [ 82.324359][ T5037] show_stack+0x2c/0x3c [ 82.324982][ T5037] __dump_stack+0x30/0x40 [ 82.325723][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.326537][ T5037] dump_stack+0x1c/0x5c [ 82.327268][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.328087][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.328873][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.329637][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.330332][ T5037] inet_sendmsg+0x154/0x284 [ 82.331034][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.331782][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.332529][ T5037] invoke_syscall+0x98/0x2b8 [ 82.333258][ T5037] el0_svc_common+0x138/0x258 [ 82.334065][ T5037] do_el0_svc+0x58/0x14c [ 82.334718][ T5037] el0_svc+0x78/0x1e0 [ 82.335345][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.336102][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.337479][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.339150][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.340271][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.341907][ T5037] Call trace: [ 82.342455][ T5037] dump_backtrace+0x0/0x43c [ 82.343173][ T5037] show_stack+0x2c/0x3c [ 82.343854][ T5037] __dump_stack+0x30/0x40 [ 82.344548][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.345281][ T5037] dump_stack+0x1c/0x5c [ 82.345928][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.346816][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.347602][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.348385][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.349119][ T5037] inet_sendmsg+0x154/0x284 [ 82.349882][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.350566][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.351294][ T5037] invoke_syscall+0x98/0x2b8 [ 82.351959][ T5037] el0_svc_common+0x138/0x258 [ 82.352691][ T5037] do_el0_svc+0x58/0x14c [ 82.353368][ T5037] el0_svc+0x78/0x1e0 [ 82.353991][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.354770][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.355784][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.357503][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.358624][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.360185][ T5037] Call trace: [ 82.360678][ T5037] dump_backtrace+0x0/0x43c [ 82.361403][ T5037] show_stack+0x2c/0x3c [ 82.362041][ T5037] __dump_stack+0x30/0x40 [ 82.362755][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.363513][ T5037] dump_stack+0x1c/0x5c [ 82.364175][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.365073][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.365856][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.366595][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.367297][ T5037] inet_sendmsg+0x154/0x284 [ 82.367970][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.368742][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.369564][ T5037] invoke_syscall+0x98/0x2b8 [ 82.370359][ T5037] el0_svc_common+0x138/0x258 [ 82.371056][ T5037] do_el0_svc+0x58/0x14c [ 82.371743][ T5037] el0_svc+0x78/0x1e0 [ 82.372329][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.373167][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.374082][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.375725][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.376800][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.378252][ T5037] Call trace: [ 82.378760][ T5037] dump_backtrace+0x0/0x43c [ 82.379436][ T5037] show_stack+0x2c/0x3c [ 82.380012][ T5037] __dump_stack+0x30/0x40 [ 82.380643][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.381355][ T5037] dump_stack+0x1c/0x5c [ 82.381968][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.382769][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.383498][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.384297][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.385075][ T5037] inet_sendmsg+0x154/0x284 [ 82.385828][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.386584][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.387386][ T5037] invoke_syscall+0x98/0x2b8 [ 82.388131][ T5037] el0_svc_common+0x138/0x258 [ 82.388866][ T5037] do_el0_svc+0x58/0x14c [ 82.389498][ T5037] el0_svc+0x78/0x1e0 [ 82.390120][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.390849][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.391678][ T5037] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.393585][ T5037] CPU: 0 PID: 5037 Comm: syz.0.40 Not tainted syzkaller #0 [ 82.394664][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.396092][ T5037] Call trace: [ 82.396538][ T5037] dump_backtrace+0x0/0x43c [ 82.397217][ T5037] show_stack+0x2c/0x3c [ 82.397849][ T5037] __dump_stack+0x30/0x40 [ 82.398559][ T5037] dump_stack_lvl+0xf8/0x160 [ 82.399309][ T5037] dump_stack+0x1c/0x5c [ 82.399988][ T5037] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.400825][ T5037] dccp_xmit_packet+0x298/0x448 [ 82.401573][ T5037] dccp_write_xmit+0x118/0x1d0 [ 82.402339][ T5037] dccp_sendmsg+0x538/0x8a8 [ 82.403020][ T5037] inet_sendmsg+0x154/0x284 [ 82.403702][ T5037] __sys_sendto+0x2e8/0x3d8 [ 82.404390][ T5037] __arm64_sys_sendto+0xd8/0xf8 [ 82.405144][ T5037] invoke_syscall+0x98/0x2b8 [ 82.405829][ T5037] el0_svc_common+0x138/0x258 [ 82.406569][ T5037] do_el0_svc+0x58/0x14c [ 82.407292][ T5037] el0_svc+0x78/0x1e0 [ 82.407888][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 82.408654][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 82.421992][ T5039] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.428448][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.430176][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.431376][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.432976][ T5039] Call trace: [ 82.433501][ T5039] dump_backtrace+0x0/0x43c [ 82.434247][ T5039] show_stack+0x2c/0x3c [ 82.434932][ T5039] __dump_stack+0x30/0x40 [ 82.435683][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.436354][ T5039] dump_stack+0x1c/0x5c [ 82.436977][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.437801][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.438552][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.439327][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.440012][ T5039] inet_sendmsg+0x154/0x284 [ 82.440703][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.441349][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.442126][ T5039] invoke_syscall+0x98/0x2b8 [ 82.442826][ T5039] el0_svc_common+0x138/0x258 [ 82.443551][ T5039] do_el0_svc+0x58/0x14c [ 82.444197][ T5039] el0_svc+0x78/0x1e0 [ 82.444802][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.445534][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.446933][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.448866][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.450020][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.451693][ T5039] Call trace: [ 82.452194][ T5039] dump_backtrace+0x0/0x43c [ 82.452918][ T5039] show_stack+0x2c/0x3c [ 82.453578][ T5039] __dump_stack+0x30/0x40 [ 82.454273][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.455048][ T5039] dump_stack+0x1c/0x5c [ 82.455722][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.456588][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.457366][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.458123][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.458812][ T5039] inet_sendmsg+0x154/0x284 [ 82.459538][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.460290][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.461062][ T5039] invoke_syscall+0x98/0x2b8 [ 82.461766][ T5039] el0_svc_common+0x138/0x258 [ 82.462552][ T5039] do_el0_svc+0x58/0x14c [ 82.463229][ T5039] el0_svc+0x78/0x1e0 [ 82.463884][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.464629][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.466478][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.468201][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.469287][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.470774][ T5039] Call trace: [ 82.471305][ T5039] dump_backtrace+0x0/0x43c [ 82.471978][ T5039] show_stack+0x2c/0x3c [ 82.472669][ T5039] __dump_stack+0x30/0x40 [ 82.473382][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.474106][ T5039] dump_stack+0x1c/0x5c [ 82.474772][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.475541][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.476242][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.476945][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.477567][ T5039] inet_sendmsg+0x154/0x284 [ 82.478215][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.478798][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.479492][ T5039] invoke_syscall+0x98/0x2b8 [ 82.480251][ T5039] el0_svc_common+0x138/0x258 [ 82.481014][ T5039] do_el0_svc+0x58/0x14c [ 82.481683][ T5039] el0_svc+0x78/0x1e0 [ 82.482304][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.483119][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.484435][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.486282][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.487403][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.489063][ T5039] Call trace: [ 82.489586][ T5039] dump_backtrace+0x0/0x43c [ 82.490352][ T5039] show_stack+0x2c/0x3c [ 82.491026][ T5039] __dump_stack+0x30/0x40 [ 82.491697][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.492410][ T5039] dump_stack+0x1c/0x5c [ 82.493093][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.493977][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.494824][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.495628][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.496413][ T5039] inet_sendmsg+0x154/0x284 [ 82.497175][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.497947][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.498742][ T5039] invoke_syscall+0x98/0x2b8 [ 82.499477][ T5039] el0_svc_common+0x138/0x258 [ 82.500234][ T5039] do_el0_svc+0x58/0x14c [ 82.500976][ T5039] el0_svc+0x78/0x1e0 [ 82.501569][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.502372][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.503274][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.505009][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.506035][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.507532][ T5039] Call trace: [ 82.508019][ T5039] dump_backtrace+0x0/0x43c [ 82.508671][ T5039] show_stack+0x2c/0x3c [ 82.509247][ T5039] __dump_stack+0x30/0x40 [ 82.509923][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.510560][ T5039] dump_stack+0x1c/0x5c [ 82.511132][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.511918][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.512681][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.513457][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.514138][ T5039] inet_sendmsg+0x154/0x284 [ 82.514806][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.515482][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.516251][ T5039] invoke_syscall+0x98/0x2b8 [ 82.516959][ T5039] el0_svc_common+0x138/0x258 [ 82.517670][ T5039] do_el0_svc+0x58/0x14c [ 82.518354][ T5039] el0_svc+0x78/0x1e0 [ 82.518967][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.519754][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.520586][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.522475][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.523599][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.525163][ T5039] Call trace: [ 82.525671][ T5039] dump_backtrace+0x0/0x43c [ 82.526307][ T5039] show_stack+0x2c/0x3c [ 82.526927][ T5039] __dump_stack+0x30/0x40 [ 82.527641][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.528355][ T5039] dump_stack+0x1c/0x5c [ 82.528954][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.529761][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.530488][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.531248][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.532009][ T5039] inet_sendmsg+0x154/0x284 [ 82.532750][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.533587][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.534389][ T5039] invoke_syscall+0x98/0x2b8 [ 82.535137][ T5039] el0_svc_common+0x138/0x258 [ 82.535913][ T5039] do_el0_svc+0x58/0x14c [ 82.536547][ T5039] el0_svc+0x78/0x1e0 [ 82.537165][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.537948][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.538889][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.540564][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.541682][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.543201][ T5039] Call trace: [ 82.543695][ T5039] dump_backtrace+0x0/0x43c [ 82.544371][ T5039] show_stack+0x2c/0x3c [ 82.544949][ T5039] __dump_stack+0x30/0x40 [ 82.545630][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.546320][ T5039] dump_stack+0x1c/0x5c [ 82.546929][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.547729][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.548444][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.549136][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.549828][ T5039] inet_sendmsg+0x154/0x284 [ 82.550583][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.551365][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.552195][ T5039] invoke_syscall+0x98/0x2b8 [ 82.552960][ T5039] el0_svc_common+0x138/0x258 [ 82.553751][ T5039] do_el0_svc+0x58/0x14c [ 82.554436][ T5039] el0_svc+0x78/0x1e0 [ 82.555085][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.555865][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.557231][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.558908][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.560030][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.561645][ T5039] Call trace: [ 82.562115][ T5039] dump_backtrace+0x0/0x43c [ 82.562787][ T5039] show_stack+0x2c/0x3c [ 82.563458][ T5039] __dump_stack+0x30/0x40 [ 82.564207][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.564905][ T5039] dump_stack+0x1c/0x5c [ 82.565591][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.566477][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.567256][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.568025][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.568745][ T5039] inet_sendmsg+0x154/0x284 [ 82.569479][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.570167][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.570894][ T5039] invoke_syscall+0x98/0x2b8 [ 82.571643][ T5039] el0_svc_common+0x138/0x258 [ 82.572442][ T5039] do_el0_svc+0x58/0x14c [ 82.573132][ T5039] el0_svc+0x78/0x1e0 [ 82.573819][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.574642][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.575521][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.577236][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.578216][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.579576][ T5039] Call trace: [ 82.580053][ T5039] dump_backtrace+0x0/0x43c [ 82.580784][ T5039] show_stack+0x2c/0x3c [ 82.581447][ T5039] __dump_stack+0x30/0x40 [ 82.582099][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.582800][ T5039] dump_stack+0x1c/0x5c [ 82.583506][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.584363][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.585093][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.585845][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.586578][ T5039] inet_sendmsg+0x154/0x284 [ 82.587282][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.587985][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.588743][ T5039] invoke_syscall+0x98/0x2b8 [ 82.589404][ T5039] el0_svc_common+0x138/0x258 [ 82.590147][ T5039] do_el0_svc+0x58/0x14c [ 82.590834][ T5039] el0_svc+0x78/0x1e0 [ 82.591534][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.592427][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.593440][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.595047][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.596089][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.597513][ T5039] Call trace: [ 82.597976][ T5039] dump_backtrace+0x0/0x43c [ 82.598619][ T5039] show_stack+0x2c/0x3c [ 82.599234][ T5039] __dump_stack+0x30/0x40 [ 82.599869][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.600541][ T5039] dump_stack+0x1c/0x5c [ 82.601126][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.602020][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.602878][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.603629][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.604369][ T5039] inet_sendmsg+0x154/0x284 [ 82.605114][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.605822][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.606614][ T5039] invoke_syscall+0x98/0x2b8 [ 82.607340][ T5039] el0_svc_common+0x138/0x258 [ 82.608034][ T5039] do_el0_svc+0x58/0x14c [ 82.608746][ T5039] el0_svc+0x78/0x1e0 [ 82.609387][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.610272][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.611187][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.613011][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.614137][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.615687][ T5039] Call trace: [ 82.616200][ T5039] dump_backtrace+0x0/0x43c [ 82.616945][ T5039] show_stack+0x2c/0x3c [ 82.617656][ T5039] __dump_stack+0x30/0x40 [ 82.618352][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.619064][ T5039] dump_stack+0x1c/0x5c [ 82.619716][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.620574][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.621335][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.622063][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.622717][ T5039] inet_sendmsg+0x154/0x284 [ 82.623414][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.624073][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.624820][ T5039] invoke_syscall+0x98/0x2b8 [ 82.625540][ T5039] el0_svc_common+0x138/0x258 [ 82.626342][ T5039] do_el0_svc+0x58/0x14c [ 82.627019][ T5039] el0_svc+0x78/0x1e0 [ 82.627669][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.628482][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.629372][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.630925][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.631969][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.633491][ T5039] Call trace: [ 82.634022][ T5039] dump_backtrace+0x0/0x43c [ 82.634759][ T5039] show_stack+0x2c/0x3c [ 82.635452][ T5039] __dump_stack+0x30/0x40 [ 82.636120][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.636886][ T5039] dump_stack+0x1c/0x5c [ 82.637559][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.638464][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.639228][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.640005][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.640742][ T5039] inet_sendmsg+0x154/0x284 [ 82.641449][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.642199][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.642954][ T5039] invoke_syscall+0x98/0x2b8 [ 82.643610][ T5039] el0_svc_common+0x138/0x258 [ 82.644261][ T5039] do_el0_svc+0x58/0x14c [ 82.644933][ T5039] el0_svc+0x78/0x1e0 [ 82.645558][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.646365][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.647325][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.649206][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.650315][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.651834][ T5039] Call trace: [ 82.652403][ T5039] dump_backtrace+0x0/0x43c [ 82.653170][ T5039] show_stack+0x2c/0x3c [ 82.653804][ T5039] __dump_stack+0x30/0x40 [ 82.654467][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.655180][ T5039] dump_stack+0x1c/0x5c [ 82.655817][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.656696][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.657438][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.658204][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.658903][ T5039] inet_sendmsg+0x154/0x284 [ 82.659589][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.660296][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.661002][ T5039] invoke_syscall+0x98/0x2b8 [ 82.661650][ T5039] el0_svc_common+0x138/0x258 [ 82.662374][ T5039] do_el0_svc+0x58/0x14c [ 82.662991][ T5039] el0_svc+0x78/0x1e0 [ 82.663585][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.664325][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.665556][ T5039] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.667225][ T5039] CPU: 0 PID: 5039 Comm: syz.0.41 Not tainted syzkaller #0 [ 82.668396][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.670008][ T5039] Call trace: [ 82.670531][ T5039] dump_backtrace+0x0/0x43c [ 82.671243][ T5039] show_stack+0x2c/0x3c [ 82.671877][ T5039] __dump_stack+0x30/0x40 [ 82.672591][ T5039] dump_stack_lvl+0xf8/0x160 [ 82.673356][ T5039] dump_stack+0x1c/0x5c [ 82.674049][ T5039] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.674957][ T5039] dccp_xmit_packet+0x298/0x448 [ 82.675738][ T5039] dccp_write_xmit+0x118/0x1d0 [ 82.676534][ T5039] dccp_sendmsg+0x538/0x8a8 [ 82.677255][ T5039] inet_sendmsg+0x154/0x284 [ 82.678035][ T5039] __sys_sendto+0x2e8/0x3d8 [ 82.678747][ T5039] __arm64_sys_sendto+0xd8/0xf8 [ 82.679528][ T5039] invoke_syscall+0x98/0x2b8 [ 82.680246][ T5039] el0_svc_common+0x138/0x258 [ 82.681002][ T5039] do_el0_svc+0x58/0x14c [ 82.681696][ T5039] el0_svc+0x78/0x1e0 [ 82.682336][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 82.683147][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 82.693912][ T5041] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.700493][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.702331][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.703468][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.705091][ T5041] Call trace: [ 82.705568][ T5041] dump_backtrace+0x0/0x43c [ 82.706292][ T5041] show_stack+0x2c/0x3c [ 82.706978][ T5041] __dump_stack+0x30/0x40 [ 82.707704][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.708528][ T5041] dump_stack+0x1c/0x5c [ 82.709208][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.710078][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.710819][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.711518][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.712314][ T5041] inet_sendmsg+0x154/0x284 [ 82.713100][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.713832][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.714561][ T5041] invoke_syscall+0x98/0x2b8 [ 82.715304][ T5041] el0_svc_common+0x138/0x258 [ 82.716117][ T5041] do_el0_svc+0x58/0x14c [ 82.716785][ T5041] el0_svc+0x78/0x1e0 [ 82.717391][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.718247][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.719226][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.720980][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.721948][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.723595][ T5041] Call trace: [ 82.724131][ T5041] dump_backtrace+0x0/0x43c [ 82.724858][ T5041] show_stack+0x2c/0x3c [ 82.725530][ T5041] __dump_stack+0x30/0x40 [ 82.726256][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.726988][ T5041] dump_stack+0x1c/0x5c [ 82.727685][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.728546][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.729304][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.730047][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.730718][ T5041] inet_sendmsg+0x154/0x284 [ 82.731401][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.732084][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.732829][ T5041] invoke_syscall+0x98/0x2b8 [ 82.733495][ T5041] el0_svc_common+0x138/0x258 [ 82.734355][ T5041] do_el0_svc+0x58/0x14c [ 82.735132][ T5041] el0_svc+0x78/0x1e0 [ 82.735799][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.736626][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.737879][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.739605][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.740694][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.742232][ T5041] Call trace: [ 82.742754][ T5041] dump_backtrace+0x0/0x43c [ 82.743458][ T5041] show_stack+0x2c/0x3c [ 82.744096][ T5041] __dump_stack+0x30/0x40 [ 82.744816][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.745529][ T5041] dump_stack+0x1c/0x5c [ 82.746190][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.747067][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.747761][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.748505][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.749228][ T5041] inet_sendmsg+0x154/0x284 [ 82.749956][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.750642][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.751355][ T5041] invoke_syscall+0x98/0x2b8 [ 82.752145][ T5041] el0_svc_common+0x138/0x258 [ 82.752893][ T5041] do_el0_svc+0x58/0x14c [ 82.753572][ T5041] el0_svc+0x78/0x1e0 [ 82.754251][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.755073][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.756103][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.757913][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.759074][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.760583][ T5041] Call trace: [ 82.761069][ T5041] dump_backtrace+0x0/0x43c [ 82.761761][ T5041] show_stack+0x2c/0x3c [ 82.762390][ T5041] __dump_stack+0x30/0x40 [ 82.763040][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.763728][ T5041] dump_stack+0x1c/0x5c [ 82.764421][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.765273][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.766100][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.766907][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.767592][ T5041] inet_sendmsg+0x154/0x284 [ 82.768338][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.769111][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.769877][ T5041] invoke_syscall+0x98/0x2b8 [ 82.770645][ T5041] el0_svc_common+0x138/0x258 [ 82.771362][ T5041] do_el0_svc+0x58/0x14c [ 82.772088][ T5041] el0_svc+0x78/0x1e0 [ 82.772697][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.773440][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.774619][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.776347][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.777482][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.779126][ T5041] Call trace: [ 82.779644][ T5041] dump_backtrace+0x0/0x43c [ 82.780321][ T5041] show_stack+0x2c/0x3c [ 82.780996][ T5041] __dump_stack+0x30/0x40 [ 82.781653][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.782356][ T5041] dump_stack+0x1c/0x5c [ 82.782965][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.783749][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.784593][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.785393][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.786169][ T5041] inet_sendmsg+0x154/0x284 [ 82.786944][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.787684][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.788507][ T5041] invoke_syscall+0x98/0x2b8 [ 82.789234][ T5041] el0_svc_common+0x138/0x258 [ 82.789994][ T5041] do_el0_svc+0x58/0x14c [ 82.790636][ T5041] el0_svc+0x78/0x1e0 [ 82.791261][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.792041][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.792915][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.794753][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.795878][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.797472][ T5041] Call trace: [ 82.798026][ T5041] dump_backtrace+0x0/0x43c [ 82.798786][ T5041] show_stack+0x2c/0x3c [ 82.799404][ T5041] __dump_stack+0x30/0x40 [ 82.800119][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.800796][ T5041] dump_stack+0x1c/0x5c [ 82.801442][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.802233][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.802952][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.803671][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.804326][ T5041] inet_sendmsg+0x154/0x284 [ 82.805000][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.805698][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.806392][ T5041] invoke_syscall+0x98/0x2b8 [ 82.807101][ T5041] el0_svc_common+0x138/0x258 [ 82.807835][ T5041] do_el0_svc+0x58/0x14c [ 82.808495][ T5041] el0_svc+0x78/0x1e0 [ 82.809084][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.809824][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.810681][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.812274][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.813356][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.814850][ T5041] Call trace: [ 82.815321][ T5041] dump_backtrace+0x0/0x43c [ 82.816063][ T5041] show_stack+0x2c/0x3c [ 82.816749][ T5041] __dump_stack+0x30/0x40 [ 82.817385][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.818032][ T5041] dump_stack+0x1c/0x5c [ 82.818702][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.819587][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.820336][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.821114][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.821897][ T5041] inet_sendmsg+0x154/0x284 [ 82.822654][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.823425][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.824180][ T5041] invoke_syscall+0x98/0x2b8 [ 82.824945][ T5041] el0_svc_common+0x138/0x258 [ 82.825791][ T5041] do_el0_svc+0x58/0x14c [ 82.826537][ T5041] el0_svc+0x78/0x1e0 [ 82.827214][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.827989][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.829106][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.830798][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.831915][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.833392][ T5041] Call trace: [ 82.833892][ T5041] dump_backtrace+0x0/0x43c [ 82.834555][ T5041] show_stack+0x2c/0x3c [ 82.835275][ T5041] __dump_stack+0x30/0x40 [ 82.836003][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.836738][ T5041] dump_stack+0x1c/0x5c [ 82.837381][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.838214][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.838997][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.839737][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.840483][ T5041] inet_sendmsg+0x154/0x284 [ 82.841249][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.841911][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.842686][ T5041] invoke_syscall+0x98/0x2b8 [ 82.843476][ T5041] el0_svc_common+0x138/0x258 [ 82.844252][ T5041] do_el0_svc+0x58/0x14c [ 82.844898][ T5041] el0_svc+0x78/0x1e0 [ 82.845496][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.846329][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.847228][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.849030][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.850278][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.852043][ T5041] Call trace: [ 82.852617][ T5041] dump_backtrace+0x0/0x43c [ 82.853422][ T5041] show_stack+0x2c/0x3c [ 82.854151][ T5041] __dump_stack+0x30/0x40 [ 82.854948][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.855691][ T5041] dump_stack+0x1c/0x5c [ 82.856351][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.857193][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.857957][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.858690][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.859365][ T5041] inet_sendmsg+0x154/0x284 [ 82.860107][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.860812][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.861578][ T5041] invoke_syscall+0x98/0x2b8 [ 82.862368][ T5041] el0_svc_common+0x138/0x258 [ 82.863203][ T5041] do_el0_svc+0x58/0x14c [ 82.863915][ T5041] el0_svc+0x78/0x1e0 [ 82.864579][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.865423][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.866486][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.868157][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.869226][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.870856][ T5041] Call trace: [ 82.871410][ T5041] dump_backtrace+0x0/0x43c [ 82.872139][ T5041] show_stack+0x2c/0x3c [ 82.872874][ T5041] __dump_stack+0x30/0x40 [ 82.873547][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.874312][ T5041] dump_stack+0x1c/0x5c [ 82.875012][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.875900][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.876660][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.877347][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.878036][ T5041] inet_sendmsg+0x154/0x284 [ 82.878767][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.879491][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.880253][ T5041] invoke_syscall+0x98/0x2b8 [ 82.880900][ T5041] el0_svc_common+0x138/0x258 [ 82.881587][ T5041] do_el0_svc+0x58/0x14c [ 82.882329][ T5041] el0_svc+0x78/0x1e0 [ 82.882976][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.883830][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.885517][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.887233][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.888357][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.889874][ T5041] Call trace: [ 82.890381][ T5041] dump_backtrace+0x0/0x43c [ 82.891081][ T5041] show_stack+0x2c/0x3c [ 82.891774][ T5041] __dump_stack+0x30/0x40 [ 82.892505][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.893283][ T5041] dump_stack+0x1c/0x5c [ 82.893967][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.894858][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.895619][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.896375][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.897100][ T5041] inet_sendmsg+0x154/0x284 [ 82.897876][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.898649][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.899499][ T5041] invoke_syscall+0x98/0x2b8 [ 82.900215][ T5041] el0_svc_common+0x138/0x258 [ 82.901078][ T5041] do_el0_svc+0x58/0x14c [ 82.901837][ T5041] el0_svc+0x78/0x1e0 [ 82.902516][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.903341][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.904317][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.906084][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.907134][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.908591][ T5041] Call trace: [ 82.909082][ T5041] dump_backtrace+0x0/0x43c [ 82.909751][ T5041] show_stack+0x2c/0x3c [ 82.910355][ T5041] __dump_stack+0x30/0x40 [ 82.911060][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.911820][ T5041] dump_stack+0x1c/0x5c [ 82.912477][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.913354][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.914105][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.914847][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.915636][ T5041] inet_sendmsg+0x154/0x284 [ 82.916379][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.917147][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.917932][ T5041] invoke_syscall+0x98/0x2b8 [ 82.918705][ T5041] el0_svc_common+0x138/0x258 [ 82.919508][ T5041] do_el0_svc+0x58/0x14c [ 82.920180][ T5041] el0_svc+0x78/0x1e0 [ 82.920786][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.921576][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.922476][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.924207][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.925201][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.926779][ T5041] Call trace: [ 82.927369][ T5041] dump_backtrace+0x0/0x43c [ 82.928126][ T5041] show_stack+0x2c/0x3c [ 82.928830][ T5041] __dump_stack+0x30/0x40 [ 82.929529][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.930269][ T5041] dump_stack+0x1c/0x5c [ 82.930946][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.931843][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.932680][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.933460][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.934259][ T5041] inet_sendmsg+0x154/0x284 [ 82.934974][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.935707][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.936468][ T5041] invoke_syscall+0x98/0x2b8 [ 82.937233][ T5041] el0_svc_common+0x138/0x258 [ 82.937981][ T5041] do_el0_svc+0x58/0x14c [ 82.938636][ T5041] el0_svc+0x78/0x1e0 [ 82.939353][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.940187][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.941007][ T5041] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.942923][ T5041] CPU: 0 PID: 5041 Comm: syz.0.42 Not tainted syzkaller #0 [ 82.944093][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.945756][ T5041] Call trace: [ 82.946301][ T5041] dump_backtrace+0x0/0x43c [ 82.947020][ T5041] show_stack+0x2c/0x3c [ 82.947666][ T5041] __dump_stack+0x30/0x40 [ 82.948365][ T5041] dump_stack_lvl+0xf8/0x160 [ 82.949077][ T5041] dump_stack+0x1c/0x5c [ 82.949679][ T5041] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.950465][ T5041] dccp_xmit_packet+0x298/0x448 [ 82.951149][ T5041] dccp_write_xmit+0x118/0x1d0 [ 82.951844][ T5041] dccp_sendmsg+0x538/0x8a8 [ 82.952597][ T5041] inet_sendmsg+0x154/0x284 [ 82.953365][ T5041] __sys_sendto+0x2e8/0x3d8 [ 82.954056][ T5041] __arm64_sys_sendto+0xd8/0xf8 [ 82.954798][ T5041] invoke_syscall+0x98/0x2b8 [ 82.955529][ T5041] el0_svc_common+0x138/0x258 [ 82.956276][ T5041] do_el0_svc+0x58/0x14c [ 82.956971][ T5041] el0_svc+0x78/0x1e0 [ 82.957603][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 82.958399][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 82.971987][ T5043] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.978575][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.980408][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 82.981503][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.982981][ T5043] Call trace: [ 82.983501][ T5043] dump_backtrace+0x0/0x43c [ 82.984245][ T5043] show_stack+0x2c/0x3c [ 82.984885][ T5043] __dump_stack+0x30/0x40 [ 82.985574][ T5043] dump_stack_lvl+0xf8/0x160 [ 82.986281][ T5043] dump_stack+0x1c/0x5c [ 82.986901][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.987694][ T5043] dccp_xmit_packet+0x298/0x448 [ 82.988464][ T5043] dccp_write_xmit+0x118/0x1d0 [ 82.989182][ T5043] dccp_sendmsg+0x538/0x8a8 [ 82.989890][ T5043] inet_sendmsg+0x154/0x284 [ 82.990645][ T5043] __sys_sendto+0x2e8/0x3d8 [ 82.991387][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 82.992205][ T5043] invoke_syscall+0x98/0x2b8 [ 82.993015][ T5043] el0_svc_common+0x138/0x258 [ 82.993842][ T5043] do_el0_svc+0x58/0x14c [ 82.994487][ T5043] el0_svc+0x78/0x1e0 [ 82.995091][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 82.995819][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 82.997636][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.999362][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.000428][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.001866][ T5043] Call trace: [ 83.002408][ T5043] dump_backtrace+0x0/0x43c [ 83.003117][ T5043] show_stack+0x2c/0x3c [ 83.003748][ T5043] __dump_stack+0x30/0x40 [ 83.004405][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.005080][ T5043] dump_stack+0x1c/0x5c [ 83.005696][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.006543][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.007312][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.008109][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.008838][ T5043] inet_sendmsg+0x154/0x284 [ 83.009541][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.010234][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.010971][ T5043] invoke_syscall+0x98/0x2b8 [ 83.011657][ T5043] el0_svc_common+0x138/0x258 [ 83.012420][ T5043] do_el0_svc+0x58/0x14c [ 83.013043][ T5043] el0_svc+0x78/0x1e0 [ 83.013733][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.014562][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.015533][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.017122][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.018131][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.019639][ T5043] Call trace: [ 83.020174][ T5043] dump_backtrace+0x0/0x43c [ 83.020834][ T5043] show_stack+0x2c/0x3c [ 83.021468][ T5043] __dump_stack+0x30/0x40 [ 83.022158][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.022875][ T5043] dump_stack+0x1c/0x5c [ 83.023539][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.024389][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.025128][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.025815][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.026511][ T5043] inet_sendmsg+0x154/0x284 [ 83.027182][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.027916][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.028659][ T5043] invoke_syscall+0x98/0x2b8 [ 83.029348][ T5043] el0_svc_common+0x138/0x258 [ 83.030034][ T5043] do_el0_svc+0x58/0x14c [ 83.030650][ T5043] el0_svc+0x78/0x1e0 [ 83.031240][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.031974][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.032864][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.034484][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.035568][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.036975][ T5043] Call trace: [ 83.037432][ T5043] dump_backtrace+0x0/0x43c [ 83.038062][ T5043] show_stack+0x2c/0x3c [ 83.038631][ T5043] __dump_stack+0x30/0x40 [ 83.039256][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.039930][ T5043] dump_stack+0x1c/0x5c [ 83.040601][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.041498][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.042238][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.043005][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.043776][ T5043] inet_sendmsg+0x154/0x284 [ 83.044508][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.045217][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.046101][ T5043] invoke_syscall+0x98/0x2b8 [ 83.046726][ T5043] el0_svc_common+0x138/0x258 [ 83.047425][ T5043] do_el0_svc+0x58/0x14c [ 83.048038][ T5043] el0_svc+0x78/0x1e0 [ 83.048727][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.049579][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.050567][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.052394][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.053439][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.054966][ T5043] Call trace: [ 83.055465][ T5043] dump_backtrace+0x0/0x43c [ 83.056086][ T5043] show_stack+0x2c/0x3c [ 83.056674][ T5043] __dump_stack+0x30/0x40 [ 83.057333][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.058063][ T5043] dump_stack+0x1c/0x5c [ 83.058754][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.059616][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.060336][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.061112][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.061830][ T5043] inet_sendmsg+0x154/0x284 [ 83.062595][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.063290][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.064070][ T5043] invoke_syscall+0x98/0x2b8 [ 83.064793][ T5043] el0_svc_common+0x138/0x258 [ 83.065466][ T5043] do_el0_svc+0x58/0x14c [ 83.066177][ T5043] el0_svc+0x78/0x1e0 [ 83.066847][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.067661][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.068629][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.070268][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.071460][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.073221][ T5043] Call trace: [ 83.073730][ T5043] dump_backtrace+0x0/0x43c [ 83.074456][ T5043] show_stack+0x2c/0x3c [ 83.075157][ T5043] __dump_stack+0x30/0x40 [ 83.075896][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.076702][ T5043] dump_stack+0x1c/0x5c [ 83.077364][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.078245][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.079046][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.079835][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.080799][ T5043] inet_sendmsg+0x154/0x284 [ 83.081558][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.082301][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.083101][ T5043] invoke_syscall+0x98/0x2b8 [ 83.083830][ T5043] el0_svc_common+0x138/0x258 [ 83.084590][ T5043] do_el0_svc+0x58/0x14c [ 83.085255][ T5043] el0_svc+0x78/0x1e0 [ 83.085854][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.086662][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.087604][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.089276][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.090338][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.091781][ T5043] Call trace: [ 83.092287][ T5043] dump_backtrace+0x0/0x43c [ 83.093058][ T5043] show_stack+0x2c/0x3c [ 83.093682][ T5043] __dump_stack+0x30/0x40 [ 83.094362][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.095087][ T5043] dump_stack+0x1c/0x5c [ 83.095682][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.096514][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.097276][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.098020][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.098783][ T5043] inet_sendmsg+0x154/0x284 [ 83.099534][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.100277][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.100989][ T5043] invoke_syscall+0x98/0x2b8 [ 83.101733][ T5043] el0_svc_common+0x138/0x258 [ 83.102463][ T5043] do_el0_svc+0x58/0x14c [ 83.103142][ T5043] el0_svc+0x78/0x1e0 [ 83.103816][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.104625][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.105797][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.107463][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.108484][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.109964][ T5043] Call trace: [ 83.110431][ T5043] dump_backtrace+0x0/0x43c [ 83.111023][ T5043] show_stack+0x2c/0x3c [ 83.111613][ T5043] __dump_stack+0x30/0x40 [ 83.112223][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.112894][ T5043] dump_stack+0x1c/0x5c [ 83.113553][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.114376][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.115133][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.115853][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.116586][ T5043] inet_sendmsg+0x154/0x284 [ 83.117321][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.117989][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.118776][ T5043] invoke_syscall+0x98/0x2b8 [ 83.119561][ T5043] el0_svc_common+0x138/0x258 [ 83.120283][ T5043] do_el0_svc+0x58/0x14c [ 83.120945][ T5043] el0_svc+0x78/0x1e0 [ 83.121587][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.122401][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.123344][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.124959][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.126012][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.127435][ T5043] Call trace: [ 83.127906][ T5043] dump_backtrace+0x0/0x43c [ 83.128533][ T5043] show_stack+0x2c/0x3c [ 83.129118][ T5043] __dump_stack+0x30/0x40 [ 83.129775][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.130439][ T5043] dump_stack+0x1c/0x5c [ 83.131048][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.131848][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.132553][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.133281][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.133989][ T5043] inet_sendmsg+0x154/0x284 [ 83.134679][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.135364][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.136083][ T5043] invoke_syscall+0x98/0x2b8 [ 83.136777][ T5043] el0_svc_common+0x138/0x258 [ 83.137455][ T5043] do_el0_svc+0x58/0x14c [ 83.138071][ T5043] el0_svc+0x78/0x1e0 [ 83.138652][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.139394][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.140337][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.142065][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.143175][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.144753][ T5043] Call trace: [ 83.145302][ T5043] dump_backtrace+0x0/0x43c [ 83.145975][ T5043] show_stack+0x2c/0x3c [ 83.146640][ T5043] __dump_stack+0x30/0x40 [ 83.147315][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.148040][ T5043] dump_stack+0x1c/0x5c [ 83.148621][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.149405][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.150079][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.150751][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.151413][ T5043] inet_sendmsg+0x154/0x284 [ 83.152070][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.152852][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.153664][ T5043] invoke_syscall+0x98/0x2b8 [ 83.154425][ T5043] el0_svc_common+0x138/0x258 [ 83.155116][ T5043] do_el0_svc+0x58/0x14c [ 83.155785][ T5043] el0_svc+0x78/0x1e0 [ 83.156378][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.157209][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.158113][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.159803][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.160880][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.162499][ T5043] Call trace: [ 83.163061][ T5043] dump_backtrace+0x0/0x43c [ 83.163788][ T5043] show_stack+0x2c/0x3c [ 83.164483][ T5043] __dump_stack+0x30/0x40 [ 83.165169][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.165861][ T5043] dump_stack+0x1c/0x5c [ 83.166510][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.167416][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.168194][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.168922][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.169640][ T5043] inet_sendmsg+0x154/0x284 [ 83.170332][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.171054][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.171810][ T5043] invoke_syscall+0x98/0x2b8 [ 83.172578][ T5043] el0_svc_common+0x138/0x258 [ 83.173373][ T5043] do_el0_svc+0x58/0x14c [ 83.174026][ T5043] el0_svc+0x78/0x1e0 [ 83.174662][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.175416][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.176433][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.178226][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.179403][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.181019][ T5043] Call trace: [ 83.181570][ T5043] dump_backtrace+0x0/0x43c [ 83.182290][ T5043] show_stack+0x2c/0x3c [ 83.182945][ T5043] __dump_stack+0x30/0x40 [ 83.183630][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.184387][ T5043] dump_stack+0x1c/0x5c [ 83.185013][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.185810][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.186499][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.187260][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.187909][ T5043] inet_sendmsg+0x154/0x284 [ 83.188551][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.189229][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.189990][ T5043] invoke_syscall+0x98/0x2b8 [ 83.190739][ T5043] el0_svc_common+0x138/0x258 [ 83.191525][ T5043] do_el0_svc+0x58/0x14c [ 83.192227][ T5043] el0_svc+0x78/0x1e0 [ 83.192873][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.193669][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.194502][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.196132][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.197257][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.198737][ T5043] Call trace: [ 83.199221][ T5043] dump_backtrace+0x0/0x43c [ 83.199884][ T5043] show_stack+0x2c/0x3c [ 83.200493][ T5043] __dump_stack+0x30/0x40 [ 83.201084][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.201791][ T5043] dump_stack+0x1c/0x5c [ 83.202442][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.203293][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.204049][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.204875][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.205595][ T5043] inet_sendmsg+0x154/0x284 [ 83.206360][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.207111][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.207868][ T5043] invoke_syscall+0x98/0x2b8 [ 83.208600][ T5043] el0_svc_common+0x138/0x258 [ 83.209353][ T5043] do_el0_svc+0x58/0x14c [ 83.210031][ T5043] el0_svc+0x78/0x1e0 [ 83.210625][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.211442][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.212886][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.214622][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.215787][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.217392][ T5043] Call trace: [ 83.217935][ T5043] dump_backtrace+0x0/0x43c [ 83.218638][ T5043] show_stack+0x2c/0x3c [ 83.219264][ T5043] __dump_stack+0x30/0x40 [ 83.219995][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.220676][ T5043] dump_stack+0x1c/0x5c [ 83.221277][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.222048][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.222759][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.223516][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.224259][ T5043] inet_sendmsg+0x154/0x284 [ 83.224875][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.225571][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.226341][ T5043] invoke_syscall+0x98/0x2b8 [ 83.227078][ T5043] el0_svc_common+0x138/0x258 [ 83.227832][ T5043] do_el0_svc+0x58/0x14c [ 83.228475][ T5043] el0_svc+0x78/0x1e0 [ 83.229139][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.229906][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.230753][ T5043] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.232471][ T5043] CPU: 0 PID: 5043 Comm: syz.0.43 Not tainted syzkaller #0 [ 83.233542][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.235097][ T5043] Call trace: [ 83.235609][ T5043] dump_backtrace+0x0/0x43c [ 83.236304][ T5043] show_stack+0x2c/0x3c [ 83.236967][ T5043] __dump_stack+0x30/0x40 [ 83.237693][ T5043] dump_stack_lvl+0xf8/0x160 [ 83.238418][ T5043] dump_stack+0x1c/0x5c [ 83.239103][ T5043] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.239978][ T5043] dccp_xmit_packet+0x298/0x448 [ 83.240775][ T5043] dccp_write_xmit+0x118/0x1d0 [ 83.241531][ T5043] dccp_sendmsg+0x538/0x8a8 [ 83.242216][ T5043] inet_sendmsg+0x154/0x284 [ 83.242983][ T5043] __sys_sendto+0x2e8/0x3d8 [ 83.243653][ T5043] __arm64_sys_sendto+0xd8/0xf8 [ 83.244394][ T5043] invoke_syscall+0x98/0x2b8 [ 83.245119][ T5043] el0_svc_common+0x138/0x258 [ 83.245878][ T5043] do_el0_svc+0x58/0x14c [ 83.246559][ T5043] el0_svc+0x78/0x1e0 [ 83.247247][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 83.248042][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 83.260740][ T5045] dccp_xmit_packet: Payload too large (65475) for featneg. [ 83.267978][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.269608][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.270734][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.272172][ T5045] Call trace: [ 83.272681][ T5045] dump_backtrace+0x0/0x43c [ 83.273385][ T5045] show_stack+0x2c/0x3c [ 83.274044][ T5045] __dump_stack+0x30/0x40 [ 83.274672][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.275330][ T5045] dump_stack+0x1c/0x5c [ 83.276082][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.276929][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.277693][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.278452][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.279235][ T5045] inet_sendmsg+0x154/0x284 [ 83.279993][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.280720][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.281467][ T5045] invoke_syscall+0x98/0x2b8 [ 83.282264][ T5045] el0_svc_common+0x138/0x258 [ 83.283029][ T5045] do_el0_svc+0x58/0x14c [ 83.283726][ T5045] el0_svc+0x78/0x1e0 [ 83.284351][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.285177][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.286714][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.288476][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.289651][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.291184][ T5045] Call trace: [ 83.291691][ T5045] dump_backtrace+0x0/0x43c [ 83.292408][ T5045] show_stack+0x2c/0x3c [ 83.293083][ T5045] __dump_stack+0x30/0x40 [ 83.293853][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.294669][ T5045] dump_stack+0x1c/0x5c [ 83.295344][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.296190][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.296948][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.297704][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.298429][ T5045] inet_sendmsg+0x154/0x284 [ 83.299174][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.299879][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.300656][ T5045] invoke_syscall+0x98/0x2b8 [ 83.301385][ T5045] el0_svc_common+0x138/0x258 [ 83.302140][ T5045] do_el0_svc+0x58/0x14c [ 83.302789][ T5045] el0_svc+0x78/0x1e0 [ 83.303390][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.304180][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.306338][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.307967][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.309042][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.310483][ T5045] Call trace: [ 83.310976][ T5045] dump_backtrace+0x0/0x43c [ 83.311620][ T5045] show_stack+0x2c/0x3c [ 83.312251][ T5045] __dump_stack+0x30/0x40 [ 83.312956][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.313706][ T5045] dump_stack+0x1c/0x5c [ 83.314391][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.315272][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.316011][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.316746][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.317441][ T5045] inet_sendmsg+0x154/0x284 [ 83.318208][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.318997][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.319747][ T5045] invoke_syscall+0x98/0x2b8 [ 83.320489][ T5045] el0_svc_common+0x138/0x258 [ 83.321240][ T5045] do_el0_svc+0x58/0x14c [ 83.321912][ T5045] el0_svc+0x78/0x1e0 [ 83.322563][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.323332][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.324504][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.326242][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.327313][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.328744][ T5045] Call trace: [ 83.329230][ T5045] dump_backtrace+0x0/0x43c [ 83.329877][ T5045] show_stack+0x2c/0x3c [ 83.330527][ T5045] __dump_stack+0x30/0x40 [ 83.331183][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.331862][ T5045] dump_stack+0x1c/0x5c [ 83.332525][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.333362][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.334227][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.335024][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.335750][ T5045] inet_sendmsg+0x154/0x284 [ 83.336466][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.337199][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.337948][ T5045] invoke_syscall+0x98/0x2b8 [ 83.338653][ T5045] el0_svc_common+0x138/0x258 [ 83.339365][ T5045] do_el0_svc+0x58/0x14c [ 83.340003][ T5045] el0_svc+0x78/0x1e0 [ 83.340647][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.341447][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.342402][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.344098][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.345132][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.346716][ T5045] Call trace: [ 83.347250][ T5045] dump_backtrace+0x0/0x43c [ 83.348028][ T5045] show_stack+0x2c/0x3c [ 83.348667][ T5045] __dump_stack+0x30/0x40 [ 83.349324][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.349954][ T5045] dump_stack+0x1c/0x5c [ 83.350562][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.351404][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.352185][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.352970][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.353728][ T5045] inet_sendmsg+0x154/0x284 [ 83.354463][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.355172][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.355989][ T5045] invoke_syscall+0x98/0x2b8 [ 83.356740][ T5045] el0_svc_common+0x138/0x258 [ 83.357458][ T5045] do_el0_svc+0x58/0x14c [ 83.358140][ T5045] el0_svc+0x78/0x1e0 [ 83.358825][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.359646][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.360526][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.362327][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.363349][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.364731][ T5045] Call trace: [ 83.365210][ T5045] dump_backtrace+0x0/0x43c [ 83.365931][ T5045] show_stack+0x2c/0x3c [ 83.366545][ T5045] __dump_stack+0x30/0x40 [ 83.367301][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.368061][ T5045] dump_stack+0x1c/0x5c [ 83.368729][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.369596][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.370365][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.371089][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.371762][ T5045] inet_sendmsg+0x154/0x284 [ 83.372475][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.373199][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.373927][ T5045] invoke_syscall+0x98/0x2b8 [ 83.374662][ T5045] el0_svc_common+0x138/0x258 [ 83.375357][ T5045] do_el0_svc+0x58/0x14c [ 83.375973][ T5045] el0_svc+0x78/0x1e0 [ 83.376638][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.377440][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.378479][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.380239][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.381318][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.382808][ T5045] Call trace: [ 83.383306][ T5045] dump_backtrace+0x0/0x43c [ 83.384091][ T5045] show_stack+0x2c/0x3c [ 83.384799][ T5045] __dump_stack+0x30/0x40 [ 83.385499][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.386302][ T5045] dump_stack+0x1c/0x5c [ 83.387002][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.387939][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.388755][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.389476][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.390249][ T5045] inet_sendmsg+0x154/0x284 [ 83.391006][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.391744][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.392532][ T5045] invoke_syscall+0x98/0x2b8 [ 83.393262][ T5045] el0_svc_common+0x138/0x258 [ 83.394053][ T5045] do_el0_svc+0x58/0x14c [ 83.394726][ T5045] el0_svc+0x78/0x1e0 [ 83.395387][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.396129][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.396974][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.398810][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.399914][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.401400][ T5045] Call trace: [ 83.401897][ T5045] dump_backtrace+0x0/0x43c [ 83.402590][ T5045] show_stack+0x2c/0x3c [ 83.403224][ T5045] __dump_stack+0x30/0x40 [ 83.403840][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.404540][ T5045] dump_stack+0x1c/0x5c [ 83.405195][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.406021][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.406810][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.407608][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.408358][ T5045] inet_sendmsg+0x154/0x284 [ 83.409150][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.409934][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.410673][ T5045] invoke_syscall+0x98/0x2b8 [ 83.411340][ T5045] el0_svc_common+0x138/0x258 [ 83.412043][ T5045] do_el0_svc+0x58/0x14c [ 83.412758][ T5045] el0_svc+0x78/0x1e0 [ 83.413427][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.414247][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.415175][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.416922][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.418063][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.419678][ T5045] Call trace: [ 83.420211][ T5045] dump_backtrace+0x0/0x43c [ 83.420971][ T5045] show_stack+0x2c/0x3c [ 83.421615][ T5045] __dump_stack+0x30/0x40 [ 83.422297][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.422997][ T5045] dump_stack+0x1c/0x5c [ 83.423689][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.424585][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.425403][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.426091][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.426782][ T5045] inet_sendmsg+0x154/0x284 [ 83.427475][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.428170][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.428900][ T5045] invoke_syscall+0x98/0x2b8 [ 83.429668][ T5045] el0_svc_common+0x138/0x258 [ 83.430416][ T5045] do_el0_svc+0x58/0x14c [ 83.431148][ T5045] el0_svc+0x78/0x1e0 [ 83.431814][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.432609][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.433910][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.435573][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.436728][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.438310][ T5045] Call trace: [ 83.438857][ T5045] dump_backtrace+0x0/0x43c [ 83.439644][ T5045] show_stack+0x2c/0x3c [ 83.440348][ T5045] __dump_stack+0x30/0x40 [ 83.441035][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.441796][ T5045] dump_stack+0x1c/0x5c [ 83.442480][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.443341][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.444136][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.444899][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.445651][ T5045] inet_sendmsg+0x154/0x284 [ 83.446364][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.447153][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.447893][ T5045] invoke_syscall+0x98/0x2b8 [ 83.448594][ T5045] el0_svc_common+0x138/0x258 [ 83.449366][ T5045] do_el0_svc+0x58/0x14c [ 83.450085][ T5045] el0_svc+0x78/0x1e0 [ 83.450737][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.451528][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.452475][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.454171][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.455239][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.456739][ T5045] Call trace: [ 83.457194][ T5045] dump_backtrace+0x0/0x43c [ 83.457902][ T5045] show_stack+0x2c/0x3c [ 83.458543][ T5045] __dump_stack+0x30/0x40 [ 83.459162][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.459824][ T5045] dump_stack+0x1c/0x5c [ 83.460456][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.461236][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.461925][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.462655][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.463318][ T5045] inet_sendmsg+0x154/0x284 [ 83.464008][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.464653][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.465376][ T5045] invoke_syscall+0x98/0x2b8 [ 83.466090][ T5045] el0_svc_common+0x138/0x258 [ 83.466792][ T5045] do_el0_svc+0x58/0x14c [ 83.467409][ T5045] el0_svc+0x78/0x1e0 [ 83.467998][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.468699][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.469618][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.471336][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.472486][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.474042][ T5045] Call trace: [ 83.474593][ T5045] dump_backtrace+0x0/0x43c [ 83.475315][ T5045] show_stack+0x2c/0x3c [ 83.475966][ T5045] __dump_stack+0x30/0x40 [ 83.476767][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.477549][ T5045] dump_stack+0x1c/0x5c [ 83.478269][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.479209][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.479997][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.480719][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.481390][ T5045] inet_sendmsg+0x154/0x284 [ 83.482115][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.482821][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.483589][ T5045] invoke_syscall+0x98/0x2b8 [ 83.484301][ T5045] el0_svc_common+0x138/0x258 [ 83.485029][ T5045] do_el0_svc+0x58/0x14c [ 83.485742][ T5045] el0_svc+0x78/0x1e0 [ 83.486407][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.487264][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.488186][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.489951][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.491143][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.492711][ T5045] Call trace: [ 83.493184][ T5045] dump_backtrace+0x0/0x43c [ 83.493860][ T5045] show_stack+0x2c/0x3c [ 83.494467][ T5045] __dump_stack+0x30/0x40 [ 83.495125][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.495880][ T5045] dump_stack+0x1c/0x5c [ 83.496498][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.497323][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.498058][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.498766][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.499472][ T5045] inet_sendmsg+0x154/0x284 [ 83.500164][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.500810][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.501526][ T5045] invoke_syscall+0x98/0x2b8 [ 83.502217][ T5045] el0_svc_common+0x138/0x258 [ 83.502947][ T5045] do_el0_svc+0x58/0x14c [ 83.503654][ T5045] el0_svc+0x78/0x1e0 [ 83.504322][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.505167][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.506067][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.507868][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.509014][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.510569][ T5045] Call trace: [ 83.511078][ T5045] dump_backtrace+0x0/0x43c [ 83.511777][ T5045] show_stack+0x2c/0x3c [ 83.512398][ T5045] __dump_stack+0x30/0x40 [ 83.513094][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.513835][ T5045] dump_stack+0x1c/0x5c [ 83.514510][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.515433][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.516176][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.516921][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.517610][ T5045] inet_sendmsg+0x154/0x284 [ 83.518309][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.519070][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.519801][ T5045] invoke_syscall+0x98/0x2b8 [ 83.520585][ T5045] el0_svc_common+0x138/0x258 [ 83.521413][ T5045] do_el0_svc+0x58/0x14c [ 83.522044][ T5045] el0_svc+0x78/0x1e0 [ 83.522641][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.523484][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.524413][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.526226][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.527377][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.528958][ T5045] Call trace: [ 83.529451][ T5045] dump_backtrace+0x0/0x43c [ 83.530107][ T5045] show_stack+0x2c/0x3c [ 83.530702][ T5045] __dump_stack+0x30/0x40 [ 83.531355][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.532046][ T5045] dump_stack+0x1c/0x5c [ 83.532649][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.533504][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.534234][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.534997][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.535688][ T5045] inet_sendmsg+0x154/0x284 [ 83.536378][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.537146][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.537961][ T5045] invoke_syscall+0x98/0x2b8 [ 83.538745][ T5045] el0_svc_common+0x138/0x258 [ 83.539484][ T5045] do_el0_svc+0x58/0x14c [ 83.540127][ T5045] el0_svc+0x78/0x1e0 [ 83.540724][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.541490][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.542645][ T5045] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.544494][ T5045] CPU: 0 PID: 5045 Comm: syz.0.44 Not tainted syzkaller #0 [ 83.545673][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.547308][ T5045] Call trace: [ 83.547820][ T5045] dump_backtrace+0x0/0x43c [ 83.548564][ T5045] show_stack+0x2c/0x3c [ 83.549232][ T5045] __dump_stack+0x30/0x40 [ 83.550008][ T5045] dump_stack_lvl+0xf8/0x160 [ 83.550778][ T5045] dump_stack+0x1c/0x5c [ 83.551404][ T5045] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.552265][ T5045] dccp_xmit_packet+0x298/0x448 [ 83.553066][ T5045] dccp_write_xmit+0x118/0x1d0 [ 83.553869][ T5045] dccp_sendmsg+0x538/0x8a8 [ 83.554650][ T5045] inet_sendmsg+0x154/0x284 [ 83.555419][ T5045] __sys_sendto+0x2e8/0x3d8 [ 83.556196][ T5045] __arm64_sys_sendto+0xd8/0xf8 [ 83.557006][ T5045] invoke_syscall+0x98/0x2b8 [ 83.557809][ T5045] el0_svc_common+0x138/0x258 [ 83.558612][ T5045] do_el0_svc+0x58/0x14c [ 83.559330][ T5045] el0_svc+0x78/0x1e0 [ 83.559987][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 83.560791][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 83.571050][ T5047] dccp_xmit_packet: Payload too large (65475) for featneg. [ 83.591360][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.593513][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.594671][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.596258][ T5049] Call trace: [ 83.596739][ T5049] dump_backtrace+0x0/0x43c [ 83.597492][ T5049] show_stack+0x2c/0x3c [ 83.598141][ T5049] __dump_stack+0x30/0x40 [ 83.598840][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.599602][ T5049] dump_stack+0x1c/0x5c [ 83.600273][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.601185][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.601937][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.602662][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.603363][ T5049] inet_sendmsg+0x154/0x284 [ 83.604053][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.604748][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.605517][ T5049] invoke_syscall+0x98/0x2b8 [ 83.606306][ T5049] el0_svc_common+0x138/0x258 [ 83.607133][ T5049] do_el0_svc+0x58/0x14c [ 83.607845][ T5049] el0_svc+0x78/0x1e0 [ 83.608532][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.609375][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.610557][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.612323][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.613348][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.614998][ T5049] Call trace: [ 83.615472][ T5049] dump_backtrace+0x0/0x43c [ 83.616176][ T5049] show_stack+0x2c/0x3c [ 83.616814][ T5049] __dump_stack+0x30/0x40 [ 83.617526][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.618293][ T5049] dump_stack+0x1c/0x5c [ 83.618968][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.619811][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.620498][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.621322][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.622065][ T5049] inet_sendmsg+0x154/0x284 [ 83.622855][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.623533][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.624279][ T5049] invoke_syscall+0x98/0x2b8 [ 83.624989][ T5049] el0_svc_common+0x138/0x258 [ 83.625649][ T5049] do_el0_svc+0x58/0x14c [ 83.626265][ T5049] el0_svc+0x78/0x1e0 [ 83.626845][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.627566][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.628361][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.629954][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.631097][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.632669][ T5049] Call trace: [ 83.633246][ T5049] dump_backtrace+0x0/0x43c [ 83.633982][ T5049] show_stack+0x2c/0x3c [ 83.634655][ T5049] __dump_stack+0x30/0x40 [ 83.635339][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.636051][ T5049] dump_stack+0x1c/0x5c [ 83.636657][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.637493][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.638321][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.639107][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.639769][ T5049] inet_sendmsg+0x154/0x284 [ 83.640468][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.641132][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.641882][ T5049] invoke_syscall+0x98/0x2b8 [ 83.642639][ T5049] el0_svc_common+0x138/0x258 [ 83.643386][ T5049] do_el0_svc+0x58/0x14c [ 83.644019][ T5049] el0_svc+0x78/0x1e0 [ 83.644684][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.645364][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.646559][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.648349][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.649503][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.651041][ T5049] Call trace: [ 83.651532][ T5049] dump_backtrace+0x0/0x43c [ 83.652260][ T5049] show_stack+0x2c/0x3c [ 83.652969][ T5049] __dump_stack+0x30/0x40 [ 83.653626][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.654346][ T5049] dump_stack+0x1c/0x5c [ 83.655051][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.655904][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.656635][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.657409][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.658130][ T5049] inet_sendmsg+0x154/0x284 [ 83.658861][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.659641][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.660404][ T5049] invoke_syscall+0x98/0x2b8 [ 83.661119][ T5049] el0_svc_common+0x138/0x258 [ 83.661844][ T5049] do_el0_svc+0x58/0x14c [ 83.662550][ T5049] el0_svc+0x78/0x1e0 [ 83.663203][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.664059][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.665228][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.666949][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.668004][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.669648][ T5049] Call trace: [ 83.670152][ T5049] dump_backtrace+0x0/0x43c [ 83.670857][ T5049] show_stack+0x2c/0x3c [ 83.671464][ T5049] __dump_stack+0x30/0x40 [ 83.672140][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.672891][ T5049] dump_stack+0x1c/0x5c [ 83.673553][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.674394][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.675248][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.676045][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.676814][ T5049] inet_sendmsg+0x154/0x284 [ 83.677602][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.678331][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.679115][ T5049] invoke_syscall+0x98/0x2b8 [ 83.679814][ T5049] el0_svc_common+0x138/0x258 [ 83.680526][ T5049] do_el0_svc+0x58/0x14c [ 83.681176][ T5049] el0_svc+0x78/0x1e0 [ 83.681742][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.682562][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.683675][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.685361][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.686405][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.687850][ T5049] Call trace: [ 83.688297][ T5049] dump_backtrace+0x0/0x43c [ 83.688962][ T5049] show_stack+0x2c/0x3c [ 83.689545][ T5049] __dump_stack+0x30/0x40 [ 83.690199][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.690965][ T5049] dump_stack+0x1c/0x5c [ 83.691619][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.692536][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.693325][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.694101][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.694858][ T5049] inet_sendmsg+0x154/0x284 [ 83.695616][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.696359][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.697153][ T5049] invoke_syscall+0x98/0x2b8 [ 83.697898][ T5049] el0_svc_common+0x138/0x258 [ 83.698681][ T5049] do_el0_svc+0x58/0x14c [ 83.699415][ T5049] el0_svc+0x78/0x1e0 [ 83.700102][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.700944][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.701949][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.703623][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.704834][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.706471][ T5049] Call trace: [ 83.707013][ T5049] dump_backtrace+0x0/0x43c [ 83.707662][ T5049] show_stack+0x2c/0x3c [ 83.708285][ T5049] __dump_stack+0x30/0x40 [ 83.708990][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.709664][ T5049] dump_stack+0x1c/0x5c [ 83.710322][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.711287][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.712119][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.712934][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.713685][ T5049] inet_sendmsg+0x154/0x284 [ 83.714437][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.715148][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.715902][ T5049] invoke_syscall+0x98/0x2b8 [ 83.716587][ T5049] el0_svc_common+0x138/0x258 [ 83.717325][ T5049] do_el0_svc+0x58/0x14c [ 83.718014][ T5049] el0_svc+0x78/0x1e0 [ 83.718670][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.719509][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.720599][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.722461][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.723659][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.725275][ T5049] Call trace: [ 83.725770][ T5049] dump_backtrace+0x0/0x43c [ 83.726502][ T5049] show_stack+0x2c/0x3c [ 83.727128][ T5049] __dump_stack+0x30/0x40 [ 83.727838][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.728534][ T5049] dump_stack+0x1c/0x5c [ 83.729137][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.729935][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.730670][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.731370][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.732024][ T5049] inet_sendmsg+0x154/0x284 [ 83.732692][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.733385][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.734136][ T5049] invoke_syscall+0x98/0x2b8 [ 83.734775][ T5049] el0_svc_common+0x138/0x258 [ 83.735486][ T5049] do_el0_svc+0x58/0x14c [ 83.736140][ T5049] el0_svc+0x78/0x1e0 [ 83.736757][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.737606][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.738513][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.740145][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.741199][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.742880][ T5049] Call trace: [ 83.743425][ T5049] dump_backtrace+0x0/0x43c [ 83.744120][ T5049] show_stack+0x2c/0x3c [ 83.744770][ T5049] __dump_stack+0x30/0x40 [ 83.745404][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.746079][ T5049] dump_stack+0x1c/0x5c [ 83.746697][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.747525][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.748275][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.749165][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.749823][ T5049] inet_sendmsg+0x154/0x284 [ 83.750530][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.751255][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.752051][ T5049] invoke_syscall+0x98/0x2b8 [ 83.752812][ T5049] el0_svc_common+0x138/0x258 [ 83.753564][ T5049] do_el0_svc+0x58/0x14c [ 83.754335][ T5049] el0_svc+0x78/0x1e0 [ 83.755069][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.755894][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.756802][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.758503][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.759621][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.761080][ T5049] Call trace: [ 83.761573][ T5049] dump_backtrace+0x0/0x43c [ 83.762227][ T5049] show_stack+0x2c/0x3c [ 83.762855][ T5049] __dump_stack+0x30/0x40 [ 83.763559][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.764286][ T5049] dump_stack+0x1c/0x5c [ 83.764893][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.765664][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.766407][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.767181][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.767926][ T5049] inet_sendmsg+0x154/0x284 [ 83.768704][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.769438][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.770293][ T5049] invoke_syscall+0x98/0x2b8 [ 83.771039][ T5049] el0_svc_common+0x138/0x258 [ 83.771818][ T5049] do_el0_svc+0x58/0x14c [ 83.772512][ T5049] el0_svc+0x78/0x1e0 [ 83.773175][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.773972][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.775828][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.777557][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.778593][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.780152][ T5049] Call trace: [ 83.780619][ T5049] dump_backtrace+0x0/0x43c [ 83.781270][ T5049] show_stack+0x2c/0x3c [ 83.781947][ T5049] __dump_stack+0x30/0x40 [ 83.782690][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.783409][ T5049] dump_stack+0x1c/0x5c [ 83.784064][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.784914][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.785711][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.786483][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.787219][ T5049] inet_sendmsg+0x154/0x284 [ 83.788017][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.788724][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.789501][ T5049] invoke_syscall+0x98/0x2b8 [ 83.790241][ T5049] el0_svc_common+0x138/0x258 [ 83.791016][ T5049] do_el0_svc+0x58/0x14c [ 83.791701][ T5049] el0_svc+0x78/0x1e0 [ 83.792325][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.793184][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.794115][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.795844][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.796825][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.798242][ T5049] Call trace: [ 83.798695][ T5049] dump_backtrace+0x0/0x43c [ 83.799359][ T5049] show_stack+0x2c/0x3c [ 83.799980][ T5049] __dump_stack+0x30/0x40 [ 83.800632][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.801275][ T5049] dump_stack+0x1c/0x5c [ 83.801912][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.802751][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.803502][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.804233][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.804924][ T5049] inet_sendmsg+0x154/0x284 [ 83.805646][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.806351][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.807091][ T5049] invoke_syscall+0x98/0x2b8 [ 83.807835][ T5049] el0_svc_common+0x138/0x258 [ 83.808586][ T5049] do_el0_svc+0x58/0x14c [ 83.809237][ T5049] el0_svc+0x78/0x1e0 [ 83.809877][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.810735][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.811645][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.813420][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.814462][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.815949][ T5049] Call trace: [ 83.816411][ T5049] dump_backtrace+0x0/0x43c [ 83.817126][ T5049] show_stack+0x2c/0x3c [ 83.817787][ T5049] __dump_stack+0x30/0x40 [ 83.818523][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.819315][ T5049] dump_stack+0x1c/0x5c [ 83.820012][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.820938][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.821767][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.822549][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.823307][ T5049] inet_sendmsg+0x154/0x284 [ 83.824043][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.824749][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.825460][ T5049] invoke_syscall+0x98/0x2b8 [ 83.826204][ T5049] el0_svc_common+0x138/0x258 [ 83.826967][ T5049] do_el0_svc+0x58/0x14c [ 83.827629][ T5049] el0_svc+0x78/0x1e0 [ 83.828305][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.829117][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.830001][ T5049] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.831722][ T5049] CPU: 0 PID: 5049 Comm: syz.0.46 Not tainted syzkaller #0 [ 83.832824][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.834343][ T5049] Call trace: [ 83.834824][ T5049] dump_backtrace+0x0/0x43c [ 83.835550][ T5049] show_stack+0x2c/0x3c [ 83.836253][ T5049] __dump_stack+0x30/0x40 [ 83.836959][ T5049] dump_stack_lvl+0xf8/0x160 [ 83.837732][ T5049] dump_stack+0x1c/0x5c [ 83.838465][ T5049] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.839413][ T5049] dccp_xmit_packet+0x298/0x448 [ 83.840234][ T5049] dccp_write_xmit+0x118/0x1d0 [ 83.841027][ T5049] dccp_sendmsg+0x538/0x8a8 [ 83.841809][ T5049] inet_sendmsg+0x154/0x284 [ 83.842559][ T5049] __sys_sendto+0x2e8/0x3d8 [ 83.843284][ T5049] __arm64_sys_sendto+0xd8/0xf8 [ 83.844077][ T5049] invoke_syscall+0x98/0x2b8 [ 83.844890][ T5049] el0_svc_common+0x138/0x258 [ 83.845669][ T5049] do_el0_svc+0x58/0x14c [ 83.846384][ T5049] el0_svc+0x78/0x1e0 [ 83.847020][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 83.847747][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 83.866797][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.868624][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.869825][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.871384][ T5051] Call trace: [ 83.871877][ T5051] dump_backtrace+0x0/0x43c [ 83.872589][ T5051] show_stack+0x2c/0x3c [ 83.873249][ T5051] __dump_stack+0x30/0x40 [ 83.873987][ T5051] dump_stack_lvl+0xf8/0x160 [ 83.874710][ T5051] dump_stack+0x1c/0x5c [ 83.875376][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.876241][ T5051] dccp_xmit_packet+0x298/0x448 [ 83.877043][ T5051] dccp_write_xmit+0x118/0x1d0 [ 83.877794][ T5051] dccp_sendmsg+0x538/0x8a8 [ 83.878535][ T5051] inet_sendmsg+0x154/0x284 [ 83.879323][ T5051] __sys_sendto+0x2e8/0x3d8 [ 83.880102][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 83.880906][ T5051] invoke_syscall+0x98/0x2b8 [ 83.881648][ T5051] el0_svc_common+0x138/0x258 [ 83.882448][ T5051] do_el0_svc+0x58/0x14c [ 83.883173][ T5051] el0_svc+0x78/0x1e0 [ 83.883864][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 83.884680][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 83.886121][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.887902][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.888989][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.890531][ T5051] Call trace: [ 83.891040][ T5051] dump_backtrace+0x0/0x43c [ 83.891735][ T5051] show_stack+0x2c/0x3c [ 83.892412][ T5051] __dump_stack+0x30/0x40 [ 83.893177][ T5051] dump_stack_lvl+0xf8/0x160 [ 83.893985][ T5051] dump_stack+0x1c/0x5c [ 83.894678][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.895606][ T5051] dccp_xmit_packet+0x298/0x448 [ 83.896385][ T5051] dccp_write_xmit+0x118/0x1d0 [ 83.897233][ T5051] dccp_sendmsg+0x538/0x8a8 [ 83.898028][ T5051] inet_sendmsg+0x154/0x284 [ 83.898819][ T5051] __sys_sendto+0x2e8/0x3d8 [ 83.899569][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 83.900356][ T5051] invoke_syscall+0x98/0x2b8 [ 83.901096][ T5051] el0_svc_common+0x138/0x258 [ 83.901836][ T5051] do_el0_svc+0x58/0x14c [ 83.902516][ T5051] el0_svc+0x78/0x1e0 [ 83.903148][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 83.903972][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 83.905209][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.906901][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.908032][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.909451][ T5051] Call trace: [ 83.909926][ T5051] dump_backtrace+0x0/0x43c [ 83.910584][ T5051] show_stack+0x2c/0x3c [ 83.911151][ T5051] __dump_stack+0x30/0x40 [ 83.911812][ T5051] dump_stack_lvl+0xf8/0x160 [ 83.912602][ T5051] dump_stack+0x1c/0x5c [ 83.913266][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.914135][ T5051] dccp_xmit_packet+0x298/0x448 [ 83.914932][ T5051] dccp_write_xmit+0x118/0x1d0 [ 83.915737][ T5051] dccp_sendmsg+0x538/0x8a8 [ 83.916482][ T5051] inet_sendmsg+0x154/0x284 [ 83.917208][ T5051] __sys_sendto+0x2e8/0x3d8 [ 83.917955][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 83.918745][ T5051] invoke_syscall+0x98/0x2b8 [ 83.919539][ T5051] el0_svc_common+0x138/0x258 [ 83.920286][ T5051] do_el0_svc+0x58/0x14c [ 83.920983][ T5051] el0_svc+0x78/0x1e0 [ 83.921684][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 83.922529][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 83.923423][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.925166][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.926217][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.927717][ T5051] Call trace: [ 83.928222][ T5051] dump_backtrace+0x0/0x43c [ 83.928959][ T5051] show_stack+0x2c/0x3c [ 83.929587][ T5051] __dump_stack+0x30/0x40 [ 83.930347][ T5051] dump_stack_lvl+0xf8/0x160 [ 83.931133][ T5051] dump_stack+0x1c/0x5c [ 83.931817][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.932733][ T5051] dccp_xmit_packet+0x298/0x448 [ 83.933509][ T5051] dccp_write_xmit+0x118/0x1d0 [ 83.934213][ T5051] dccp_sendmsg+0x538/0x8a8 [ 83.934894][ T5051] inet_sendmsg+0x154/0x284 [ 83.935604][ T5051] __sys_sendto+0x2e8/0x3d8 [ 83.936269][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 83.937058][ T5051] invoke_syscall+0x98/0x2b8 [ 83.937756][ T5051] el0_svc_common+0x138/0x258 [ 83.938507][ T5051] do_el0_svc+0x58/0x14c [ 83.939175][ T5051] el0_svc+0x78/0x1e0 [ 83.939821][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 83.940596][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 83.941560][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.943408][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.944514][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.946108][ T5051] Call trace: [ 83.946609][ T5051] dump_backtrace+0x0/0x43c [ 83.947308][ T5051] show_stack+0x2c/0x3c [ 83.948020][ T5051] __dump_stack+0x30/0x40 [ 83.948747][ T5051] dump_stack_lvl+0xf8/0x160 [ 83.949463][ T5051] dump_stack+0x1c/0x5c [ 83.950132][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.950984][ T5051] dccp_xmit_packet+0x298/0x448 [ 83.951787][ T5051] dccp_write_xmit+0x118/0x1d0 [ 83.952556][ T5051] dccp_sendmsg+0x538/0x8a8 [ 83.953245][ T5051] inet_sendmsg+0x154/0x284 [ 83.954001][ T5051] __sys_sendto+0x2e8/0x3d8 [ 83.954677][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 83.955453][ T5051] invoke_syscall+0x98/0x2b8 [ 83.956180][ T5051] el0_svc_common+0x138/0x258 [ 83.956896][ T5051] do_el0_svc+0x58/0x14c [ 83.957557][ T5051] el0_svc+0x78/0x1e0 [ 83.958181][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 83.959014][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 83.959838][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.961642][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.962798][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.964346][ T5051] Call trace: [ 83.964849][ T5051] dump_backtrace+0x0/0x43c [ 83.965533][ T5051] show_stack+0x2c/0x3c [ 83.966241][ T5051] __dump_stack+0x30/0x40 [ 83.966998][ T5051] dump_stack_lvl+0xf8/0x160 [ 83.967743][ T5051] dump_stack+0x1c/0x5c [ 83.968352][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.969206][ T5051] dccp_xmit_packet+0x298/0x448 [ 83.969930][ T5051] dccp_write_xmit+0x118/0x1d0 [ 83.970641][ T5051] dccp_sendmsg+0x538/0x8a8 [ 83.971389][ T5051] inet_sendmsg+0x154/0x284 [ 83.972124][ T5051] __sys_sendto+0x2e8/0x3d8 [ 83.972892][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 83.973704][ T5051] invoke_syscall+0x98/0x2b8 [ 83.974439][ T5051] el0_svc_common+0x138/0x258 [ 83.975162][ T5051] do_el0_svc+0x58/0x14c [ 83.975826][ T5051] el0_svc+0x78/0x1e0 [ 83.976431][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 83.977259][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 83.978150][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.979887][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.980909][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.982549][ T5051] Call trace: [ 83.983070][ T5051] dump_backtrace+0x0/0x43c [ 83.983759][ T5051] show_stack+0x2c/0x3c [ 83.984435][ T5051] __dump_stack+0x30/0x40 [ 83.985175][ T5051] dump_stack_lvl+0xf8/0x160 [ 83.985930][ T5051] dump_stack+0x1c/0x5c [ 83.986619][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.987537][ T5051] dccp_xmit_packet+0x298/0x448 [ 83.988360][ T5051] dccp_write_xmit+0x118/0x1d0 [ 83.989135][ T5051] dccp_sendmsg+0x538/0x8a8 [ 83.989878][ T5051] inet_sendmsg+0x154/0x284 [ 83.990540][ T5051] __sys_sendto+0x2e8/0x3d8 [ 83.991266][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 83.992008][ T5051] invoke_syscall+0x98/0x2b8 [ 83.992740][ T5051] el0_svc_common+0x138/0x258 [ 83.993435][ T5051] do_el0_svc+0x58/0x14c [ 83.994093][ T5051] el0_svc+0x78/0x1e0 [ 83.994682][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 83.995474][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 83.996761][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.998455][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 83.999526][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.000966][ T5051] Call trace: [ 84.001464][ T5051] dump_backtrace+0x0/0x43c [ 84.002132][ T5051] show_stack+0x2c/0x3c [ 84.002743][ T5051] __dump_stack+0x30/0x40 [ 84.003407][ T5051] dump_stack_lvl+0xf8/0x160 [ 84.004104][ T5051] dump_stack+0x1c/0x5c [ 84.004727][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.005568][ T5051] dccp_xmit_packet+0x298/0x448 [ 84.006340][ T5051] dccp_write_xmit+0x118/0x1d0 [ 84.007156][ T5051] dccp_sendmsg+0x538/0x8a8 [ 84.007935][ T5051] inet_sendmsg+0x154/0x284 [ 84.008703][ T5051] __sys_sendto+0x2e8/0x3d8 [ 84.009436][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 84.010195][ T5051] invoke_syscall+0x98/0x2b8 [ 84.010861][ T5051] el0_svc_common+0x138/0x258 [ 84.011563][ T5051] do_el0_svc+0x58/0x14c [ 84.012213][ T5051] el0_svc+0x78/0x1e0 [ 84.012858][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 84.013658][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 84.014584][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.016199][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 84.017226][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.018663][ T5051] Call trace: [ 84.019153][ T5051] dump_backtrace+0x0/0x43c [ 84.019866][ T5051] show_stack+0x2c/0x3c [ 84.020493][ T5051] __dump_stack+0x30/0x40 [ 84.021183][ T5051] dump_stack_lvl+0xf8/0x160 [ 84.021890][ T5051] dump_stack+0x1c/0x5c [ 84.022594][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.023532][ T5051] dccp_xmit_packet+0x298/0x448 [ 84.024335][ T5051] dccp_write_xmit+0x118/0x1d0 [ 84.025036][ T5051] dccp_sendmsg+0x538/0x8a8 [ 84.025708][ T5051] inet_sendmsg+0x154/0x284 [ 84.026403][ T5051] __sys_sendto+0x2e8/0x3d8 [ 84.027079][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 84.027812][ T5051] invoke_syscall+0x98/0x2b8 [ 84.028494][ T5051] el0_svc_common+0x138/0x258 [ 84.029287][ T5051] do_el0_svc+0x58/0x14c [ 84.030013][ T5051] el0_svc+0x78/0x1e0 [ 84.030642][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 84.031440][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 84.032509][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.034274][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 84.035329][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.036715][ T5051] Call trace: [ 84.037154][ T5051] dump_backtrace+0x0/0x43c [ 84.037766][ T5051] show_stack+0x2c/0x3c [ 84.038400][ T5051] __dump_stack+0x30/0x40 [ 84.039026][ T5051] dump_stack_lvl+0xf8/0x160 [ 84.039669][ T5051] dump_stack+0x1c/0x5c [ 84.040298][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.041091][ T5051] dccp_xmit_packet+0x298/0x448 [ 84.041804][ T5051] dccp_write_xmit+0x118/0x1d0 [ 84.042621][ T5051] dccp_sendmsg+0x538/0x8a8 [ 84.043328][ T5051] inet_sendmsg+0x154/0x284 [ 84.044064][ T5051] __sys_sendto+0x2e8/0x3d8 [ 84.044804][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 84.045585][ T5051] invoke_syscall+0x98/0x2b8 [ 84.046355][ T5051] el0_svc_common+0x138/0x258 [ 84.047170][ T5051] do_el0_svc+0x58/0x14c [ 84.047915][ T5051] el0_svc+0x78/0x1e0 [ 84.048539][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 84.049306][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 84.050135][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.051932][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 84.053025][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.054397][ T5051] Call trace: [ 84.054893][ T5051] dump_backtrace+0x0/0x43c [ 84.055563][ T5051] show_stack+0x2c/0x3c [ 84.056177][ T5051] __dump_stack+0x30/0x40 [ 84.056788][ T5051] dump_stack_lvl+0xf8/0x160 [ 84.057475][ T5051] dump_stack+0x1c/0x5c [ 84.058116][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.059001][ T5051] dccp_xmit_packet+0x298/0x448 [ 84.059829][ T5051] dccp_write_xmit+0x118/0x1d0 [ 84.060618][ T5051] dccp_sendmsg+0x538/0x8a8 [ 84.061237][ T5051] inet_sendmsg+0x154/0x284 [ 84.061878][ T5051] __sys_sendto+0x2e8/0x3d8 [ 84.062547][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 84.063315][ T5051] invoke_syscall+0x98/0x2b8 [ 84.064000][ T5051] el0_svc_common+0x138/0x258 [ 84.064752][ T5051] do_el0_svc+0x58/0x14c [ 84.065417][ T5051] el0_svc+0x78/0x1e0 [ 84.066047][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 84.066889][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 84.067817][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.069570][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 84.070669][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.072173][ T5051] Call trace: [ 84.072658][ T5051] dump_backtrace+0x0/0x43c [ 84.073369][ T5051] show_stack+0x2c/0x3c [ 84.073991][ T5051] __dump_stack+0x30/0x40 [ 84.074641][ T5051] dump_stack_lvl+0xf8/0x160 [ 84.075344][ T5051] dump_stack+0x1c/0x5c [ 84.075991][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.076775][ T5051] dccp_xmit_packet+0x298/0x448 [ 84.077506][ T5051] dccp_write_xmit+0x118/0x1d0 [ 84.078261][ T5051] dccp_sendmsg+0x538/0x8a8 [ 84.078946][ T5051] inet_sendmsg+0x154/0x284 [ 84.079745][ T5051] __sys_sendto+0x2e8/0x3d8 [ 84.080490][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 84.081323][ T5051] invoke_syscall+0x98/0x2b8 [ 84.082007][ T5051] el0_svc_common+0x138/0x258 [ 84.082803][ T5051] do_el0_svc+0x58/0x14c [ 84.083490][ T5051] el0_svc+0x78/0x1e0 [ 84.084118][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 84.084959][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 84.086006][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.087686][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 84.088704][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.090247][ T5051] Call trace: [ 84.090753][ T5051] dump_backtrace+0x0/0x43c [ 84.091470][ T5051] show_stack+0x2c/0x3c [ 84.092143][ T5051] __dump_stack+0x30/0x40 [ 84.092876][ T5051] dump_stack_lvl+0xf8/0x160 [ 84.093630][ T5051] dump_stack+0x1c/0x5c [ 84.094293][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.095061][ T5051] dccp_xmit_packet+0x298/0x448 [ 84.095796][ T5051] dccp_write_xmit+0x118/0x1d0 [ 84.096503][ T5051] dccp_sendmsg+0x538/0x8a8 [ 84.097198][ T5051] inet_sendmsg+0x154/0x284 [ 84.097886][ T5051] __sys_sendto+0x2e8/0x3d8 [ 84.098574][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 84.099333][ T5051] invoke_syscall+0x98/0x2b8 [ 84.100056][ T5051] el0_svc_common+0x138/0x258 [ 84.100767][ T5051] do_el0_svc+0x58/0x14c [ 84.101414][ T5051] el0_svc+0x78/0x1e0 [ 84.102105][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 84.102998][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 84.104174][ T5051] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.105924][ T5051] CPU: 0 PID: 5051 Comm: syz.0.47 Not tainted syzkaller #0 [ 84.107116][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.108681][ T5051] Call trace: [ 84.109181][ T5051] dump_backtrace+0x0/0x43c [ 84.109877][ T5051] show_stack+0x2c/0x3c [ 84.110499][ T5051] __dump_stack+0x30/0x40 [ 84.111239][ T5051] dump_stack_lvl+0xf8/0x160 [ 84.112010][ T5051] dump_stack+0x1c/0x5c [ 84.112634][ T5051] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.113527][ T5051] dccp_xmit_packet+0x298/0x448 [ 84.114349][ T5051] dccp_write_xmit+0x118/0x1d0 [ 84.115079][ T5051] dccp_sendmsg+0x538/0x8a8 [ 84.115806][ T5051] inet_sendmsg+0x154/0x284 [ 84.116563][ T5051] __sys_sendto+0x2e8/0x3d8 [ 84.117272][ T5051] __arm64_sys_sendto+0xd8/0xf8 [ 84.118079][ T5051] invoke_syscall+0x98/0x2b8 [ 84.118781][ T5051] el0_svc_common+0x138/0x258 [ 84.119570][ T5051] do_el0_svc+0x58/0x14c [ 84.120310][ T5051] el0_svc+0x78/0x1e0 [ 84.120980][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 84.121719][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 84.141118][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.143036][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.144100][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.145682][ T5053] Call trace: [ 84.146213][ T5053] dump_backtrace+0x0/0x43c [ 84.147008][ T5053] show_stack+0x2c/0x3c [ 84.147655][ T5053] __dump_stack+0x30/0x40 [ 84.148330][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.149059][ T5053] dump_stack+0x1c/0x5c [ 84.149702][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.150597][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.151374][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.152100][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.152830][ T5053] inet_sendmsg+0x154/0x284 [ 84.153519][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.154225][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.154988][ T5053] invoke_syscall+0x98/0x2b8 [ 84.155725][ T5053] el0_svc_common+0x138/0x258 [ 84.156516][ T5053] do_el0_svc+0x58/0x14c [ 84.157235][ T5053] el0_svc+0x78/0x1e0 [ 84.157840][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.158609][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.159779][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.161426][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.162475][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.163929][ T5053] Call trace: [ 84.164392][ T5053] dump_backtrace+0x0/0x43c [ 84.165035][ T5053] show_stack+0x2c/0x3c [ 84.165699][ T5053] __dump_stack+0x30/0x40 [ 84.166340][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.167087][ T5053] dump_stack+0x1c/0x5c [ 84.167745][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.168575][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.169314][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.170008][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.170729][ T5053] inet_sendmsg+0x154/0x284 [ 84.171398][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.172059][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.172825][ T5053] invoke_syscall+0x98/0x2b8 [ 84.173524][ T5053] el0_svc_common+0x138/0x258 [ 84.174263][ T5053] do_el0_svc+0x58/0x14c [ 84.174928][ T5053] el0_svc+0x78/0x1e0 [ 84.175545][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.176280][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.177173][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.178924][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.180030][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.181593][ T5053] Call trace: [ 84.182117][ T5053] dump_backtrace+0x0/0x43c [ 84.182850][ T5053] show_stack+0x2c/0x3c [ 84.183509][ T5053] __dump_stack+0x30/0x40 [ 84.184136][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.184862][ T5053] dump_stack+0x1c/0x5c [ 84.185513][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.186324][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.187033][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.187723][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.188406][ T5053] inet_sendmsg+0x154/0x284 [ 84.189158][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.189873][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.190642][ T5053] invoke_syscall+0x98/0x2b8 [ 84.191329][ T5053] el0_svc_common+0x138/0x258 [ 84.192096][ T5053] do_el0_svc+0x58/0x14c [ 84.192757][ T5053] el0_svc+0x78/0x1e0 [ 84.193421][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.194220][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.195126][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.196799][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.197890][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.199492][ T5053] Call trace: [ 84.199993][ T5053] dump_backtrace+0x0/0x43c [ 84.200728][ T5053] show_stack+0x2c/0x3c [ 84.201381][ T5053] __dump_stack+0x30/0x40 [ 84.202084][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.202805][ T5053] dump_stack+0x1c/0x5c [ 84.203473][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.204370][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.205198][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.205948][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.206721][ T5053] inet_sendmsg+0x154/0x284 [ 84.207451][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.208229][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.208977][ T5053] invoke_syscall+0x98/0x2b8 [ 84.209707][ T5053] el0_svc_common+0x138/0x258 [ 84.210488][ T5053] do_el0_svc+0x58/0x14c [ 84.211101][ T5053] el0_svc+0x78/0x1e0 [ 84.211747][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.212576][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.213437][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.215252][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.216404][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.218059][ T5053] Call trace: [ 84.218557][ T5053] dump_backtrace+0x0/0x43c [ 84.219307][ T5053] show_stack+0x2c/0x3c [ 84.219969][ T5053] __dump_stack+0x30/0x40 [ 84.220656][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.221376][ T5053] dump_stack+0x1c/0x5c [ 84.222009][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.222793][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.223504][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.224213][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.224850][ T5053] inet_sendmsg+0x154/0x284 [ 84.225498][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.226159][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.226859][ T5053] invoke_syscall+0x98/0x2b8 [ 84.227586][ T5053] el0_svc_common+0x138/0x258 [ 84.228271][ T5053] do_el0_svc+0x58/0x14c [ 84.228929][ T5053] el0_svc+0x78/0x1e0 [ 84.229511][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.230406][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.231282][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.233121][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.234267][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.235908][ T5053] Call trace: [ 84.236469][ T5053] dump_backtrace+0x0/0x43c [ 84.237224][ T5053] show_stack+0x2c/0x3c [ 84.237877][ T5053] __dump_stack+0x30/0x40 [ 84.238558][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.239206][ T5053] dump_stack+0x1c/0x5c [ 84.239873][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.240726][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.241562][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.242297][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.242990][ T5053] inet_sendmsg+0x154/0x284 [ 84.243718][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.244446][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.245184][ T5053] invoke_syscall+0x98/0x2b8 [ 84.245920][ T5053] el0_svc_common+0x138/0x258 [ 84.246672][ T5053] do_el0_svc+0x58/0x14c [ 84.247388][ T5053] el0_svc+0x78/0x1e0 [ 84.248010][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.248798][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.249749][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.251545][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.252667][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.254163][ T5053] Call trace: [ 84.254707][ T5053] dump_backtrace+0x0/0x43c [ 84.255468][ T5053] show_stack+0x2c/0x3c [ 84.256126][ T5053] __dump_stack+0x30/0x40 [ 84.256816][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.257590][ T5053] dump_stack+0x1c/0x5c [ 84.258267][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.259185][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.259932][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.260648][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.261308][ T5053] inet_sendmsg+0x154/0x284 [ 84.261983][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.262673][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.263376][ T5053] invoke_syscall+0x98/0x2b8 [ 84.264096][ T5053] el0_svc_common+0x138/0x258 [ 84.264822][ T5053] do_el0_svc+0x58/0x14c [ 84.265487][ T5053] el0_svc+0x78/0x1e0 [ 84.266103][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.266879][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.267756][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.269389][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.270321][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.271811][ T5053] Call trace: [ 84.272363][ T5053] dump_backtrace+0x0/0x43c [ 84.273052][ T5053] show_stack+0x2c/0x3c [ 84.273635][ T5053] __dump_stack+0x30/0x40 [ 84.274319][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.275016][ T5053] dump_stack+0x1c/0x5c [ 84.275618][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.276481][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.277209][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.277923][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.278614][ T5053] inet_sendmsg+0x154/0x284 [ 84.279348][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.280100][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.280935][ T5053] invoke_syscall+0x98/0x2b8 [ 84.281716][ T5053] el0_svc_common+0x138/0x258 [ 84.282516][ T5053] do_el0_svc+0x58/0x14c [ 84.283207][ T5053] el0_svc+0x78/0x1e0 [ 84.283837][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.284697][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.285569][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.287370][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.288466][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.290071][ T5053] Call trace: [ 84.290607][ T5053] dump_backtrace+0x0/0x43c [ 84.291311][ T5053] show_stack+0x2c/0x3c [ 84.292010][ T5053] __dump_stack+0x30/0x40 [ 84.292745][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.293479][ T5053] dump_stack+0x1c/0x5c [ 84.294165][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.295026][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.295799][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.296597][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.297340][ T5053] inet_sendmsg+0x154/0x284 [ 84.298023][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.298721][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.299507][ T5053] invoke_syscall+0x98/0x2b8 [ 84.300188][ T5053] el0_svc_common+0x138/0x258 [ 84.300963][ T5053] do_el0_svc+0x58/0x14c [ 84.301645][ T5053] el0_svc+0x78/0x1e0 [ 84.302304][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.303092][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.303933][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.305544][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.306656][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.308175][ T5053] Call trace: [ 84.308638][ T5053] dump_backtrace+0x0/0x43c [ 84.309383][ T5053] show_stack+0x2c/0x3c [ 84.310026][ T5053] __dump_stack+0x30/0x40 [ 84.310726][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.311574][ T5053] dump_stack+0x1c/0x5c [ 84.312261][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.313183][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.314020][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.314797][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.315520][ T5053] inet_sendmsg+0x154/0x284 [ 84.316226][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.316947][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.317672][ T5053] invoke_syscall+0x98/0x2b8 [ 84.318444][ T5053] el0_svc_common+0x138/0x258 [ 84.319194][ T5053] do_el0_svc+0x58/0x14c [ 84.319859][ T5053] el0_svc+0x78/0x1e0 [ 84.320511][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.321308][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.322190][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.323889][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.325074][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.326564][ T5053] Call trace: [ 84.327034][ T5053] dump_backtrace+0x0/0x43c [ 84.327724][ T5053] show_stack+0x2c/0x3c [ 84.328397][ T5053] __dump_stack+0x30/0x40 [ 84.329024][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.329643][ T5053] dump_stack+0x1c/0x5c [ 84.330237][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.331001][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.331681][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.332412][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.333111][ T5053] inet_sendmsg+0x154/0x284 [ 84.333860][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.334602][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.335338][ T5053] invoke_syscall+0x98/0x2b8 [ 84.336017][ T5053] el0_svc_common+0x138/0x258 [ 84.336716][ T5053] do_el0_svc+0x58/0x14c [ 84.337303][ T5053] el0_svc+0x78/0x1e0 [ 84.337850][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.338558][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.339427][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.341109][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.342206][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.343761][ T5053] Call trace: [ 84.344226][ T5053] dump_backtrace+0x0/0x43c [ 84.344920][ T5053] show_stack+0x2c/0x3c [ 84.345562][ T5053] __dump_stack+0x30/0x40 [ 84.346171][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.346888][ T5053] dump_stack+0x1c/0x5c [ 84.347475][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.348334][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.349118][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.349925][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.350594][ T5053] inet_sendmsg+0x154/0x284 [ 84.351304][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.351993][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.352767][ T5053] invoke_syscall+0x98/0x2b8 [ 84.353508][ T5053] el0_svc_common+0x138/0x258 [ 84.354257][ T5053] do_el0_svc+0x58/0x14c [ 84.354962][ T5053] el0_svc+0x78/0x1e0 [ 84.355596][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.356414][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.357905][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.359679][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.360847][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.362482][ T5053] Call trace: [ 84.363019][ T5053] dump_backtrace+0x0/0x43c [ 84.363758][ T5053] show_stack+0x2c/0x3c [ 84.364369][ T5053] __dump_stack+0x30/0x40 [ 84.365021][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.365759][ T5053] dump_stack+0x1c/0x5c [ 84.366390][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.367178][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.367981][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.368752][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.369453][ T5053] inet_sendmsg+0x154/0x284 [ 84.370149][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.370824][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.371550][ T5053] invoke_syscall+0x98/0x2b8 [ 84.372346][ T5053] el0_svc_common+0x138/0x258 [ 84.373150][ T5053] do_el0_svc+0x58/0x14c [ 84.373858][ T5053] el0_svc+0x78/0x1e0 [ 84.374492][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.375283][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.376114][ T5053] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.377831][ T5053] CPU: 1 PID: 5053 Comm: syz.0.48 Not tainted syzkaller #0 [ 84.378883][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.380274][ T5053] Call trace: [ 84.380705][ T5053] dump_backtrace+0x0/0x43c [ 84.381318][ T5053] show_stack+0x2c/0x3c [ 84.381877][ T5053] __dump_stack+0x30/0x40 [ 84.382563][ T5053] dump_stack_lvl+0xf8/0x160 [ 84.383278][ T5053] dump_stack+0x1c/0x5c [ 84.383956][ T5053] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.384890][ T5053] dccp_xmit_packet+0x298/0x448 [ 84.385649][ T5053] dccp_write_xmit+0x118/0x1d0 [ 84.386354][ T5053] dccp_sendmsg+0x538/0x8a8 [ 84.387059][ T5053] inet_sendmsg+0x154/0x284 [ 84.387708][ T5053] __sys_sendto+0x2e8/0x3d8 [ 84.388383][ T5053] __arm64_sys_sendto+0xd8/0xf8 [ 84.389150][ T5053] invoke_syscall+0x98/0x2b8 [ 84.389869][ T5053] el0_svc_common+0x138/0x258 [ 84.390573][ T5053] do_el0_svc+0x58/0x14c [ 84.391198][ T5053] el0_svc+0x78/0x1e0 [ 84.391783][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 84.392530][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 84.409997][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.411789][ T5055] CPU: 0 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.412824][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.414255][ T5055] Call trace: [ 84.414797][ T5055] dump_backtrace+0x0/0x43c [ 84.415566][ T5055] show_stack+0x2c/0x3c [ 84.416213][ T5055] __dump_stack+0x30/0x40 [ 84.416920][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.417632][ T5055] dump_stack+0x1c/0x5c [ 84.418278][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.419111][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.419897][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.420652][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.421378][ T5055] inet_sendmsg+0x154/0x284 [ 84.422162][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.422921][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.423730][ T5055] invoke_syscall+0x98/0x2b8 [ 84.424536][ T5055] el0_svc_common+0x138/0x258 [ 84.425350][ T5055] do_el0_svc+0x58/0x14c [ 84.426114][ T5055] el0_svc+0x78/0x1e0 [ 84.426769][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.427568][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.429206][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.430930][ T5055] CPU: 0 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.432135][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.433777][ T5055] Call trace: [ 84.434288][ T5055] dump_backtrace+0x0/0x43c [ 84.434987][ T5055] show_stack+0x2c/0x3c [ 84.435637][ T5055] __dump_stack+0x30/0x40 [ 84.436283][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.436999][ T5055] dump_stack+0x1c/0x5c [ 84.437639][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.438465][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.439197][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.439911][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.440597][ T5055] inet_sendmsg+0x154/0x284 [ 84.441278][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.441962][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.442693][ T5055] invoke_syscall+0x98/0x2b8 [ 84.443357][ T5055] el0_svc_common+0x138/0x258 [ 84.444118][ T5055] do_el0_svc+0x58/0x14c [ 84.444814][ T5055] el0_svc+0x78/0x1e0 [ 84.445445][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.446240][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.448676][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.450451][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.451521][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.453090][ T5055] Call trace: [ 84.453603][ T5055] dump_backtrace+0x0/0x43c [ 84.454322][ T5055] show_stack+0x2c/0x3c [ 84.454964][ T5055] __dump_stack+0x30/0x40 [ 84.455628][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.456314][ T5055] dump_stack+0x1c/0x5c [ 84.456909][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.457644][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.458413][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.459127][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.459867][ T5055] inet_sendmsg+0x154/0x284 [ 84.460603][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.461269][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.462022][ T5055] invoke_syscall+0x98/0x2b8 [ 84.462729][ T5055] el0_svc_common+0x138/0x258 [ 84.463435][ T5055] do_el0_svc+0x58/0x14c [ 84.464038][ T5055] el0_svc+0x78/0x1e0 [ 84.464610][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.465378][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.466972][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.468575][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.469580][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.470948][ T5055] Call trace: [ 84.471465][ T5055] dump_backtrace+0x0/0x43c [ 84.472179][ T5055] show_stack+0x2c/0x3c [ 84.472825][ T5055] __dump_stack+0x30/0x40 [ 84.473496][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.474238][ T5055] dump_stack+0x1c/0x5c [ 84.474859][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.475626][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.476290][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.477057][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.477742][ T5055] inet_sendmsg+0x154/0x284 [ 84.478421][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.479097][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.479874][ T5055] invoke_syscall+0x98/0x2b8 [ 84.480597][ T5055] el0_svc_common+0x138/0x258 [ 84.481342][ T5055] do_el0_svc+0x58/0x14c [ 84.482034][ T5055] el0_svc+0x78/0x1e0 [ 84.482660][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.483364][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.484908][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.486630][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.487731][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.489256][ T5055] Call trace: [ 84.489686][ T5055] dump_backtrace+0x0/0x43c [ 84.490280][ T5055] show_stack+0x2c/0x3c [ 84.490901][ T5055] __dump_stack+0x30/0x40 [ 84.491540][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.492172][ T5055] dump_stack+0x1c/0x5c [ 84.492817][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.493670][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.494367][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.495052][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.495771][ T5055] inet_sendmsg+0x154/0x284 [ 84.496491][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.497220][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.498026][ T5055] invoke_syscall+0x98/0x2b8 [ 84.498708][ T5055] el0_svc_common+0x138/0x258 [ 84.499426][ T5055] do_el0_svc+0x58/0x14c [ 84.500011][ T5055] el0_svc+0x78/0x1e0 [ 84.500572][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.501313][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.502080][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.503607][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.504638][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.506226][ T5055] Call trace: [ 84.506745][ T5055] dump_backtrace+0x0/0x43c [ 84.507442][ T5055] show_stack+0x2c/0x3c [ 84.508066][ T5055] __dump_stack+0x30/0x40 [ 84.508748][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.509458][ T5055] dump_stack+0x1c/0x5c [ 84.510142][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.510934][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.511699][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.512452][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.513140][ T5055] inet_sendmsg+0x154/0x284 [ 84.513855][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.514618][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.515343][ T5055] invoke_syscall+0x98/0x2b8 [ 84.516013][ T5055] el0_svc_common+0x138/0x258 [ 84.516711][ T5055] do_el0_svc+0x58/0x14c [ 84.517347][ T5055] el0_svc+0x78/0x1e0 [ 84.517926][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.518673][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.519566][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.521181][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.522185][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.523578][ T5055] Call trace: [ 84.524053][ T5055] dump_backtrace+0x0/0x43c [ 84.524721][ T5055] show_stack+0x2c/0x3c [ 84.525325][ T5055] __dump_stack+0x30/0x40 [ 84.525947][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.526589][ T5055] dump_stack+0x1c/0x5c [ 84.527181][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.527941][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.528607][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.529330][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.530060][ T5055] inet_sendmsg+0x154/0x284 [ 84.530748][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.531418][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.532069][ T5055] invoke_syscall+0x98/0x2b8 [ 84.532737][ T5055] el0_svc_common+0x138/0x258 [ 84.533535][ T5055] do_el0_svc+0x58/0x14c [ 84.534202][ T5055] el0_svc+0x78/0x1e0 [ 84.534812][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.535686][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.536535][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.538122][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.539170][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.540595][ T5055] Call trace: [ 84.541063][ T5055] dump_backtrace+0x0/0x43c [ 84.541682][ T5055] show_stack+0x2c/0x3c [ 84.542267][ T5055] __dump_stack+0x30/0x40 [ 84.542843][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.543548][ T5055] dump_stack+0x1c/0x5c [ 84.544173][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.544989][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.545757][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.546450][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.547108][ T5055] inet_sendmsg+0x154/0x284 [ 84.547795][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.548442][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.549227][ T5055] invoke_syscall+0x98/0x2b8 [ 84.549985][ T5055] el0_svc_common+0x138/0x258 [ 84.550738][ T5055] do_el0_svc+0x58/0x14c [ 84.551418][ T5055] el0_svc+0x78/0x1e0 [ 84.552069][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.552803][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.553590][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.555132][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.556131][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.557455][ T5055] Call trace: [ 84.557908][ T5055] dump_backtrace+0x0/0x43c [ 84.558510][ T5055] show_stack+0x2c/0x3c [ 84.559051][ T5055] __dump_stack+0x30/0x40 [ 84.559637][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.560273][ T5055] dump_stack+0x1c/0x5c [ 84.560825][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.561547][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.562204][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.562831][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.563422][ T5055] inet_sendmsg+0x154/0x284 [ 84.564017][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.564650][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.565311][ T5055] invoke_syscall+0x98/0x2b8 [ 84.565996][ T5055] el0_svc_common+0x138/0x258 [ 84.566686][ T5055] do_el0_svc+0x58/0x14c [ 84.567321][ T5055] el0_svc+0x78/0x1e0 [ 84.567894][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.568738][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.569644][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.571157][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.572221][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.573781][ T5055] Call trace: [ 84.574269][ T5055] dump_backtrace+0x0/0x43c [ 84.574931][ T5055] show_stack+0x2c/0x3c [ 84.575585][ T5055] __dump_stack+0x30/0x40 [ 84.576247][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.577003][ T5055] dump_stack+0x1c/0x5c [ 84.577724][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.578612][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.579424][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.580125][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.580751][ T5055] inet_sendmsg+0x154/0x284 [ 84.581383][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.582044][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.582779][ T5055] invoke_syscall+0x98/0x2b8 [ 84.583493][ T5055] el0_svc_common+0x138/0x258 [ 84.584245][ T5055] do_el0_svc+0x58/0x14c [ 84.584928][ T5055] el0_svc+0x78/0x1e0 [ 84.585605][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.586393][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.587362][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.589001][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.590145][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.591564][ T5055] Call trace: [ 84.592095][ T5055] dump_backtrace+0x0/0x43c [ 84.592765][ T5055] show_stack+0x2c/0x3c [ 84.593369][ T5055] __dump_stack+0x30/0x40 [ 84.593993][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.594618][ T5055] dump_stack+0x1c/0x5c [ 84.595296][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.596168][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.597000][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.597782][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.598454][ T5055] inet_sendmsg+0x154/0x284 [ 84.599175][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.599845][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.600579][ T5055] invoke_syscall+0x98/0x2b8 [ 84.601266][ T5055] el0_svc_common+0x138/0x258 [ 84.601930][ T5055] do_el0_svc+0x58/0x14c [ 84.602507][ T5055] el0_svc+0x78/0x1e0 [ 84.603124][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.603939][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.604777][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.606355][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.607377][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.608888][ T5055] Call trace: [ 84.609361][ T5055] dump_backtrace+0x0/0x43c [ 84.610003][ T5055] show_stack+0x2c/0x3c [ 84.610579][ T5055] __dump_stack+0x30/0x40 [ 84.611212][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.611911][ T5055] dump_stack+0x1c/0x5c [ 84.612513][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.613411][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.614194][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.614966][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.615618][ T5055] inet_sendmsg+0x154/0x284 [ 84.616263][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.616919][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.617678][ T5055] invoke_syscall+0x98/0x2b8 [ 84.618407][ T5055] el0_svc_common+0x138/0x258 [ 84.619185][ T5055] do_el0_svc+0x58/0x14c [ 84.619840][ T5055] el0_svc+0x78/0x1e0 [ 84.620467][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.621257][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.622141][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.623970][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.625119][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.626695][ T5055] Call trace: [ 84.627183][ T5055] dump_backtrace+0x0/0x43c [ 84.627877][ T5055] show_stack+0x2c/0x3c [ 84.628555][ T5055] __dump_stack+0x30/0x40 [ 84.629211][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.629913][ T5055] dump_stack+0x1c/0x5c [ 84.630480][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.631326][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.632063][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.632757][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.633480][ T5055] inet_sendmsg+0x154/0x284 [ 84.634197][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.634864][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.635563][ T5055] invoke_syscall+0x98/0x2b8 [ 84.636245][ T5055] el0_svc_common+0x138/0x258 [ 84.636952][ T5055] do_el0_svc+0x58/0x14c [ 84.637614][ T5055] el0_svc+0x78/0x1e0 [ 84.638231][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.639001][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.639812][ T5055] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.641498][ T5055] CPU: 1 PID: 5055 Comm: syz.0.49 Not tainted syzkaller #0 [ 84.642468][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.644039][ T5055] Call trace: [ 84.644549][ T5055] dump_backtrace+0x0/0x43c [ 84.645270][ T5055] show_stack+0x2c/0x3c [ 84.645911][ T5055] __dump_stack+0x30/0x40 [ 84.646559][ T5055] dump_stack_lvl+0xf8/0x160 [ 84.647297][ T5055] dump_stack+0x1c/0x5c [ 84.647945][ T5055] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.648791][ T5055] dccp_xmit_packet+0x298/0x448 [ 84.649572][ T5055] dccp_write_xmit+0x118/0x1d0 [ 84.650276][ T5055] dccp_sendmsg+0x538/0x8a8 [ 84.650952][ T5055] inet_sendmsg+0x154/0x284 [ 84.651612][ T5055] __sys_sendto+0x2e8/0x3d8 [ 84.652282][ T5055] __arm64_sys_sendto+0xd8/0xf8 [ 84.653070][ T5055] invoke_syscall+0x98/0x2b8 [ 84.653785][ T5055] el0_svc_common+0x138/0x258 [ 84.654542][ T5055] do_el0_svc+0x58/0x14c [ 84.655217][ T5055] el0_svc+0x78/0x1e0 [ 84.655840][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 84.656667][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 84.674099][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.675924][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.677006][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.678534][ T5057] Call trace: [ 84.679025][ T5057] dump_backtrace+0x0/0x43c [ 84.679695][ T5057] show_stack+0x2c/0x3c [ 84.680307][ T5057] __dump_stack+0x30/0x40 [ 84.680956][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.681681][ T5057] dump_stack+0x1c/0x5c [ 84.682363][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.683262][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.684107][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.684855][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.685643][ T5057] inet_sendmsg+0x154/0x284 [ 84.686411][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.687183][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.687971][ T5057] invoke_syscall+0x98/0x2b8 [ 84.688657][ T5057] el0_svc_common+0x138/0x258 [ 84.689436][ T5057] do_el0_svc+0x58/0x14c [ 84.690115][ T5057] el0_svc+0x78/0x1e0 [ 84.690731][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.691486][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.693152][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.694780][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.695829][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.697309][ T5057] Call trace: [ 84.697768][ T5057] dump_backtrace+0x0/0x43c [ 84.698436][ T5057] show_stack+0x2c/0x3c [ 84.699128][ T5057] __dump_stack+0x30/0x40 [ 84.699780][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.700529][ T5057] dump_stack+0x1c/0x5c [ 84.701246][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.702163][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.702948][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.703714][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.704434][ T5057] inet_sendmsg+0x154/0x284 [ 84.705123][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.705887][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.706705][ T5057] invoke_syscall+0x98/0x2b8 [ 84.707470][ T5057] el0_svc_common+0x138/0x258 [ 84.708235][ T5057] do_el0_svc+0x58/0x14c [ 84.708895][ T5057] el0_svc+0x78/0x1e0 [ 84.709531][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.710299][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.712682][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.714431][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.715513][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.717013][ T5057] Call trace: [ 84.717512][ T5057] dump_backtrace+0x0/0x43c [ 84.718164][ T5057] show_stack+0x2c/0x3c [ 84.718817][ T5057] __dump_stack+0x30/0x40 [ 84.719418][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.720107][ T5057] dump_stack+0x1c/0x5c [ 84.720699][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.721527][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.722306][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.723117][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.723877][ T5057] inet_sendmsg+0x154/0x284 [ 84.724577][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.725305][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.726087][ T5057] invoke_syscall+0x98/0x2b8 [ 84.726867][ T5057] el0_svc_common+0x138/0x258 [ 84.727633][ T5057] do_el0_svc+0x58/0x14c [ 84.728305][ T5057] el0_svc+0x78/0x1e0 [ 84.728963][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.729839][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.730732][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.732494][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.733528][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.735183][ T5057] Call trace: [ 84.735711][ T5057] dump_backtrace+0x0/0x43c [ 84.736424][ T5057] show_stack+0x2c/0x3c [ 84.737016][ T5057] __dump_stack+0x30/0x40 [ 84.737696][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.738364][ T5057] dump_stack+0x1c/0x5c [ 84.738953][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.739749][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.740483][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.741237][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.741967][ T5057] inet_sendmsg+0x154/0x284 [ 84.742700][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.743477][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.744251][ T5057] invoke_syscall+0x98/0x2b8 [ 84.745014][ T5057] el0_svc_common+0x138/0x258 [ 84.745765][ T5057] do_el0_svc+0x58/0x14c [ 84.746428][ T5057] el0_svc+0x78/0x1e0 [ 84.747113][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.747973][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.748808][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.750444][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.751474][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.753124][ T5057] Call trace: [ 84.753671][ T5057] dump_backtrace+0x0/0x43c [ 84.754431][ T5057] show_stack+0x2c/0x3c [ 84.755049][ T5057] __dump_stack+0x30/0x40 [ 84.755760][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.756441][ T5057] dump_stack+0x1c/0x5c [ 84.757093][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.757998][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.758786][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.759480][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.760153][ T5057] inet_sendmsg+0x154/0x284 [ 84.760790][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.761505][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.762213][ T5057] invoke_syscall+0x98/0x2b8 [ 84.762959][ T5057] el0_svc_common+0x138/0x258 [ 84.763641][ T5057] do_el0_svc+0x58/0x14c [ 84.764331][ T5057] el0_svc+0x78/0x1e0 [ 84.764968][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.765758][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.766610][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.768353][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.769467][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.771124][ T5057] Call trace: [ 84.771661][ T5057] dump_backtrace+0x0/0x43c [ 84.772385][ T5057] show_stack+0x2c/0x3c [ 84.772982][ T5057] __dump_stack+0x30/0x40 [ 84.773649][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.774334][ T5057] dump_stack+0x1c/0x5c [ 84.774978][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.775889][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.776684][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.777503][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.778265][ T5057] inet_sendmsg+0x154/0x284 [ 84.779017][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.779689][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.780484][ T5057] invoke_syscall+0x98/0x2b8 [ 84.781200][ T5057] el0_svc_common+0x138/0x258 [ 84.781991][ T5057] do_el0_svc+0x58/0x14c [ 84.782651][ T5057] el0_svc+0x78/0x1e0 [ 84.783281][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.784167][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.785375][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.787167][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.788391][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.790063][ T5057] Call trace: [ 84.790590][ T5057] dump_backtrace+0x0/0x43c [ 84.791284][ T5057] show_stack+0x2c/0x3c [ 84.791917][ T5057] __dump_stack+0x30/0x40 [ 84.792626][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.793378][ T5057] dump_stack+0x1c/0x5c [ 84.793995][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.794892][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.795637][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.796365][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.797062][ T5057] inet_sendmsg+0x154/0x284 [ 84.797815][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.798585][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.799367][ T5057] invoke_syscall+0x98/0x2b8 [ 84.800123][ T5057] el0_svc_common+0x138/0x258 [ 84.800897][ T5057] do_el0_svc+0x58/0x14c [ 84.801538][ T5057] el0_svc+0x78/0x1e0 [ 84.802173][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.802922][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.803979][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.805664][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.806802][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.808318][ T5057] Call trace: [ 84.808782][ T5057] dump_backtrace+0x0/0x43c [ 84.809450][ T5057] show_stack+0x2c/0x3c [ 84.810075][ T5057] __dump_stack+0x30/0x40 [ 84.810693][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.811352][ T5057] dump_stack+0x1c/0x5c [ 84.812026][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.812892][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.813665][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.814382][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.815106][ T5057] inet_sendmsg+0x154/0x284 [ 84.815791][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.816487][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.817218][ T5057] invoke_syscall+0x98/0x2b8 [ 84.818024][ T5057] el0_svc_common+0x138/0x258 [ 84.818830][ T5057] do_el0_svc+0x58/0x14c [ 84.819562][ T5057] el0_svc+0x78/0x1e0 [ 84.820248][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.821089][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.822034][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.823624][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.824650][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.826107][ T5057] Call trace: [ 84.826600][ T5057] dump_backtrace+0x0/0x43c [ 84.827313][ T5057] show_stack+0x2c/0x3c [ 84.827908][ T5057] __dump_stack+0x30/0x40 [ 84.828552][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.829277][ T5057] dump_stack+0x1c/0x5c [ 84.829981][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.830808][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.831498][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.832200][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.832900][ T5057] inet_sendmsg+0x154/0x284 [ 84.833679][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.834443][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.835283][ T5057] invoke_syscall+0x98/0x2b8 [ 84.836046][ T5057] el0_svc_common+0x138/0x258 [ 84.836808][ T5057] do_el0_svc+0x58/0x14c [ 84.837533][ T5057] el0_svc+0x78/0x1e0 [ 84.838125][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.838890][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.839726][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.841344][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.842341][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.843899][ T5057] Call trace: [ 84.844424][ T5057] dump_backtrace+0x0/0x43c [ 84.845154][ T5057] show_stack+0x2c/0x3c [ 84.845757][ T5057] __dump_stack+0x30/0x40 [ 84.846392][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.847056][ T5057] dump_stack+0x1c/0x5c [ 84.847639][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.848416][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.849110][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.849838][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.850497][ T5057] inet_sendmsg+0x154/0x284 [ 84.851123][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.851717][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.852523][ T5057] invoke_syscall+0x98/0x2b8 [ 84.853263][ T5057] el0_svc_common+0x138/0x258 [ 84.853948][ T5057] do_el0_svc+0x58/0x14c [ 84.854582][ T5057] el0_svc+0x78/0x1e0 [ 84.855148][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.855841][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.856754][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.858388][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.859542][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.861098][ T5057] Call trace: [ 84.861593][ T5057] dump_backtrace+0x0/0x43c [ 84.862283][ T5057] show_stack+0x2c/0x3c [ 84.862968][ T5057] __dump_stack+0x30/0x40 [ 84.863662][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.864415][ T5057] dump_stack+0x1c/0x5c [ 84.865051][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.865971][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.866791][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.867595][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.868278][ T5057] inet_sendmsg+0x154/0x284 [ 84.868947][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.869636][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.870327][ T5057] invoke_syscall+0x98/0x2b8 [ 84.871045][ T5057] el0_svc_common+0x138/0x258 [ 84.871782][ T5057] do_el0_svc+0x58/0x14c [ 84.872478][ T5057] el0_svc+0x78/0x1e0 [ 84.873152][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.873954][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.874752][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.876584][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.877743][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.879240][ T5057] Call trace: [ 84.879722][ T5057] dump_backtrace+0x0/0x43c [ 84.880383][ T5057] show_stack+0x2c/0x3c [ 84.881064][ T5057] __dump_stack+0x30/0x40 [ 84.881767][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.882608][ T5057] dump_stack+0x1c/0x5c [ 84.883301][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.884199][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.885052][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.885847][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.886555][ T5057] inet_sendmsg+0x154/0x284 [ 84.887331][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.888035][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.888822][ T5057] invoke_syscall+0x98/0x2b8 [ 84.889494][ T5057] el0_svc_common+0x138/0x258 [ 84.890256][ T5057] do_el0_svc+0x58/0x14c [ 84.890949][ T5057] el0_svc+0x78/0x1e0 [ 84.891615][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.892461][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.893675][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.895385][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.896462][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.897966][ T5057] Call trace: [ 84.898437][ T5057] dump_backtrace+0x0/0x43c [ 84.899120][ T5057] show_stack+0x2c/0x3c [ 84.899739][ T5057] __dump_stack+0x30/0x40 [ 84.900410][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.901142][ T5057] dump_stack+0x1c/0x5c [ 84.901822][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.902726][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.903608][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.904342][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.905107][ T5057] inet_sendmsg+0x154/0x284 [ 84.905898][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.906680][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.907477][ T5057] invoke_syscall+0x98/0x2b8 [ 84.908210][ T5057] el0_svc_common+0x138/0x258 [ 84.908955][ T5057] do_el0_svc+0x58/0x14c [ 84.909564][ T5057] el0_svc+0x78/0x1e0 [ 84.910148][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.910896][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.911911][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.913614][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.914772][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.916441][ T5057] Call trace: [ 84.916956][ T5057] dump_backtrace+0x0/0x43c [ 84.917612][ T5057] show_stack+0x2c/0x3c [ 84.918286][ T5057] __dump_stack+0x30/0x40 [ 84.918948][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.919665][ T5057] dump_stack+0x1c/0x5c [ 84.920361][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.921310][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.922106][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.922925][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.923668][ T5057] inet_sendmsg+0x154/0x284 [ 84.924408][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.925074][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.925808][ T5057] invoke_syscall+0x98/0x2b8 [ 84.926479][ T5057] el0_svc_common+0x138/0x258 [ 84.927180][ T5057] do_el0_svc+0x58/0x14c [ 84.927830][ T5057] el0_svc+0x78/0x1e0 [ 84.928503][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.929340][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.930266][ T5057] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.932059][ T5057] CPU: 0 PID: 5057 Comm: syz.0.50 Not tainted syzkaller #0 [ 84.933117][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.934629][ T5057] Call trace: [ 84.935122][ T5057] dump_backtrace+0x0/0x43c [ 84.935892][ T5057] show_stack+0x2c/0x3c [ 84.936507][ T5057] __dump_stack+0x30/0x40 [ 84.937092][ T5057] dump_stack_lvl+0xf8/0x160 [ 84.937807][ T5057] dump_stack+0x1c/0x5c [ 84.938493][ T5057] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.939402][ T5057] dccp_xmit_packet+0x298/0x448 [ 84.940126][ T5057] dccp_write_xmit+0x118/0x1d0 [ 84.940797][ T5057] dccp_sendmsg+0x538/0x8a8 [ 84.941433][ T5057] inet_sendmsg+0x154/0x284 [ 84.942078][ T5057] __sys_sendto+0x2e8/0x3d8 [ 84.942804][ T5057] __arm64_sys_sendto+0xd8/0xf8 [ 84.943617][ T5057] invoke_syscall+0x98/0x2b8 [ 84.944388][ T5057] el0_svc_common+0x138/0x258 [ 84.945153][ T5057] do_el0_svc+0x58/0x14c [ 84.945860][ T5057] el0_svc+0x78/0x1e0 [ 84.946524][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 84.947319][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 84.962612][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.964426][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 84.965589][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.967166][ T5059] Call trace: [ 84.967688][ T5059] dump_backtrace+0x0/0x43c [ 84.968427][ T5059] show_stack+0x2c/0x3c [ 84.969156][ T5059] __dump_stack+0x30/0x40 [ 84.969885][ T5059] dump_stack_lvl+0xf8/0x160 [ 84.970619][ T5059] dump_stack+0x1c/0x5c [ 84.971243][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.972125][ T5059] dccp_xmit_packet+0x298/0x448 [ 84.972919][ T5059] dccp_write_xmit+0x118/0x1d0 [ 84.973684][ T5059] dccp_sendmsg+0x538/0x8a8 [ 84.974450][ T5059] inet_sendmsg+0x154/0x284 [ 84.975197][ T5059] __sys_sendto+0x2e8/0x3d8 [ 84.975947][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 84.976702][ T5059] invoke_syscall+0x98/0x2b8 [ 84.977404][ T5059] el0_svc_common+0x138/0x258 [ 84.978188][ T5059] do_el0_svc+0x58/0x14c [ 84.978870][ T5059] el0_svc+0x78/0x1e0 [ 84.979449][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 84.980216][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 84.981099][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.983054][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 84.984173][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 84.985590][ T5059] Call trace: [ 84.986067][ T5059] dump_backtrace+0x0/0x43c [ 84.986706][ T5059] show_stack+0x2c/0x3c [ 84.987338][ T5059] __dump_stack+0x30/0x40 [ 84.988001][ T5059] dump_stack_lvl+0xf8/0x160 [ 84.988692][ T5059] dump_stack+0x1c/0x5c [ 84.989327][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.990139][ T5059] dccp_xmit_packet+0x298/0x448 [ 84.990863][ T5059] dccp_write_xmit+0x118/0x1d0 [ 84.991593][ T5059] dccp_sendmsg+0x538/0x8a8 [ 84.992241][ T5059] inet_sendmsg+0x154/0x284 [ 84.992897][ T5059] __sys_sendto+0x2e8/0x3d8 [ 84.993581][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 84.994278][ T5059] invoke_syscall+0x98/0x2b8 [ 84.994920][ T5059] el0_svc_common+0x138/0x258 [ 84.995595][ T5059] do_el0_svc+0x58/0x14c [ 84.996228][ T5059] el0_svc+0x78/0x1e0 [ 84.996867][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 84.997630][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 84.998506][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.000100][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.001101][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.002496][ T5059] Call trace: [ 85.002972][ T5059] dump_backtrace+0x0/0x43c [ 85.003621][ T5059] show_stack+0x2c/0x3c [ 85.004255][ T5059] __dump_stack+0x30/0x40 [ 85.004909][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.005658][ T5059] dump_stack+0x1c/0x5c [ 85.006341][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.007271][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.008027][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.008865][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.009545][ T5059] inet_sendmsg+0x154/0x284 [ 85.010194][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.010897][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.011655][ T5059] invoke_syscall+0x98/0x2b8 [ 85.012397][ T5059] el0_svc_common+0x138/0x258 [ 85.013192][ T5059] do_el0_svc+0x58/0x14c [ 85.013936][ T5059] el0_svc+0x78/0x1e0 [ 85.014545][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.015361][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.016794][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.018720][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.019818][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.021345][ T5059] Call trace: [ 85.021830][ T5059] dump_backtrace+0x0/0x43c [ 85.022456][ T5059] show_stack+0x2c/0x3c [ 85.023037][ T5059] __dump_stack+0x30/0x40 [ 85.023672][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.024337][ T5059] dump_stack+0x1c/0x5c [ 85.024985][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.025827][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.026576][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.027283][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.027988][ T5059] inet_sendmsg+0x154/0x284 [ 85.028719][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.029403][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.030149][ T5059] invoke_syscall+0x98/0x2b8 [ 85.030824][ T5059] el0_svc_common+0x138/0x258 [ 85.031449][ T5059] do_el0_svc+0x58/0x14c [ 85.032113][ T5059] el0_svc+0x78/0x1e0 [ 85.032707][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.033456][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.034338][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.035907][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.036956][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.038357][ T5059] Call trace: [ 85.038832][ T5059] dump_backtrace+0x0/0x43c [ 85.039480][ T5059] show_stack+0x2c/0x3c [ 85.040108][ T5059] __dump_stack+0x30/0x40 [ 85.040788][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.041405][ T5059] dump_stack+0x1c/0x5c [ 85.042118][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.042993][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.043756][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.044509][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.045185][ T5059] inet_sendmsg+0x154/0x284 [ 85.045864][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.046599][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.047360][ T5059] invoke_syscall+0x98/0x2b8 [ 85.048081][ T5059] el0_svc_common+0x138/0x258 [ 85.048792][ T5059] do_el0_svc+0x58/0x14c [ 85.049445][ T5059] el0_svc+0x78/0x1e0 [ 85.050037][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.050800][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.051652][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.053490][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.054566][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.056021][ T5059] Call trace: [ 85.056482][ T5059] dump_backtrace+0x0/0x43c [ 85.057158][ T5059] show_stack+0x2c/0x3c [ 85.057824][ T5059] __dump_stack+0x30/0x40 [ 85.058519][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.059226][ T5059] dump_stack+0x1c/0x5c [ 85.059822][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.060746][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.061572][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.062358][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.063141][ T5059] inet_sendmsg+0x154/0x284 [ 85.063959][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.064657][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.065413][ T5059] invoke_syscall+0x98/0x2b8 [ 85.066152][ T5059] el0_svc_common+0x138/0x258 [ 85.066931][ T5059] do_el0_svc+0x58/0x14c [ 85.067606][ T5059] el0_svc+0x78/0x1e0 [ 85.068274][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.069039][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.069960][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.071660][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.072802][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.074332][ T5059] Call trace: [ 85.074859][ T5059] dump_backtrace+0x0/0x43c [ 85.075547][ T5059] show_stack+0x2c/0x3c [ 85.076159][ T5059] __dump_stack+0x30/0x40 [ 85.076786][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.077457][ T5059] dump_stack+0x1c/0x5c [ 85.078164][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.079123][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.079878][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.080601][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.081268][ T5059] inet_sendmsg+0x154/0x284 [ 85.081926][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.082583][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.083285][ T5059] invoke_syscall+0x98/0x2b8 [ 85.083976][ T5059] el0_svc_common+0x138/0x258 [ 85.084693][ T5059] do_el0_svc+0x58/0x14c [ 85.085455][ T5059] el0_svc+0x78/0x1e0 [ 85.086161][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.087005][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.087903][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.089639][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.090789][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.092295][ T5059] Call trace: [ 85.092768][ T5059] dump_backtrace+0x0/0x43c [ 85.093417][ T5059] show_stack+0x2c/0x3c [ 85.094030][ T5059] __dump_stack+0x30/0x40 [ 85.094700][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.095467][ T5059] dump_stack+0x1c/0x5c [ 85.096170][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.097045][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.097799][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.098547][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.099289][ T5059] inet_sendmsg+0x154/0x284 [ 85.099995][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.100757][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.101520][ T5059] invoke_syscall+0x98/0x2b8 [ 85.102241][ T5059] el0_svc_common+0x138/0x258 [ 85.102970][ T5059] do_el0_svc+0x58/0x14c [ 85.103612][ T5059] el0_svc+0x78/0x1e0 [ 85.104233][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.105039][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.105917][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.107980][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.109035][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.110496][ T5059] Call trace: [ 85.111004][ T5059] dump_backtrace+0x0/0x43c [ 85.111728][ T5059] show_stack+0x2c/0x3c [ 85.112419][ T5059] __dump_stack+0x30/0x40 [ 85.113133][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.113858][ T5059] dump_stack+0x1c/0x5c [ 85.114508][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.115271][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.116042][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.116784][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.117594][ T5059] inet_sendmsg+0x154/0x284 [ 85.118316][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.119112][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.119891][ T5059] invoke_syscall+0x98/0x2b8 [ 85.120591][ T5059] el0_svc_common+0x138/0x258 [ 85.121308][ T5059] do_el0_svc+0x58/0x14c [ 85.121932][ T5059] el0_svc+0x78/0x1e0 [ 85.122542][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.123294][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.124704][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.126444][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.127667][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.129188][ T5059] Call trace: [ 85.129690][ T5059] dump_backtrace+0x0/0x43c [ 85.130431][ T5059] show_stack+0x2c/0x3c [ 85.131120][ T5059] __dump_stack+0x30/0x40 [ 85.131867][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.132665][ T5059] dump_stack+0x1c/0x5c [ 85.133326][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.134139][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.134916][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.135699][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.136396][ T5059] inet_sendmsg+0x154/0x284 [ 85.137112][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.137865][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.138704][ T5059] invoke_syscall+0x98/0x2b8 [ 85.139402][ T5059] el0_svc_common+0x138/0x258 [ 85.140172][ T5059] do_el0_svc+0x58/0x14c [ 85.140892][ T5059] el0_svc+0x78/0x1e0 [ 85.141569][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.142474][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.143399][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.145181][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.146261][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.147729][ T5059] Call trace: [ 85.148215][ T5059] dump_backtrace+0x0/0x43c [ 85.148861][ T5059] show_stack+0x2c/0x3c [ 85.149433][ T5059] __dump_stack+0x30/0x40 [ 85.150123][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.150914][ T5059] dump_stack+0x1c/0x5c [ 85.151611][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.152523][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.153275][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.154029][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.154789][ T5059] inet_sendmsg+0x154/0x284 [ 85.155515][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.156217][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.157011][ T5059] invoke_syscall+0x98/0x2b8 [ 85.157787][ T5059] el0_svc_common+0x138/0x258 [ 85.158556][ T5059] do_el0_svc+0x58/0x14c [ 85.159255][ T5059] el0_svc+0x78/0x1e0 [ 85.159878][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.160718][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.161599][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.163227][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.164326][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.165823][ T5059] Call trace: [ 85.166299][ T5059] dump_backtrace+0x0/0x43c [ 85.166961][ T5059] show_stack+0x2c/0x3c [ 85.167555][ T5059] __dump_stack+0x30/0x40 [ 85.168155][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.168809][ T5059] dump_stack+0x1c/0x5c [ 85.169434][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.170253][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.171025][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.171790][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.172463][ T5059] inet_sendmsg+0x154/0x284 [ 85.173156][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.173891][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.174779][ T5059] invoke_syscall+0x98/0x2b8 [ 85.175534][ T5059] el0_svc_common+0x138/0x258 [ 85.176336][ T5059] do_el0_svc+0x58/0x14c [ 85.177039][ T5059] el0_svc+0x78/0x1e0 [ 85.177714][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.178511][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.179900][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.181651][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.182728][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.184294][ T5059] Call trace: [ 85.184807][ T5059] dump_backtrace+0x0/0x43c [ 85.185524][ T5059] show_stack+0x2c/0x3c [ 85.186174][ T5059] __dump_stack+0x30/0x40 [ 85.186892][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.187606][ T5059] dump_stack+0x1c/0x5c [ 85.188222][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.189002][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.189784][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.190515][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.191217][ T5059] inet_sendmsg+0x154/0x284 [ 85.191933][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.192577][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.193352][ T5059] invoke_syscall+0x98/0x2b8 [ 85.194072][ T5059] el0_svc_common+0x138/0x258 [ 85.194863][ T5059] do_el0_svc+0x58/0x14c [ 85.195570][ T5059] el0_svc+0x78/0x1e0 [ 85.196146][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.196938][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.197847][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.199595][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.200706][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.202160][ T5059] Call trace: [ 85.202652][ T5059] dump_backtrace+0x0/0x43c [ 85.203383][ T5059] show_stack+0x2c/0x3c [ 85.204021][ T5059] __dump_stack+0x30/0x40 [ 85.204709][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.205415][ T5059] dump_stack+0x1c/0x5c [ 85.206103][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.207075][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.207808][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.208553][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.209349][ T5059] inet_sendmsg+0x154/0x284 [ 85.210013][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.210779][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.211580][ T5059] invoke_syscall+0x98/0x2b8 [ 85.212373][ T5059] el0_svc_common+0x138/0x258 [ 85.213212][ T5059] do_el0_svc+0x58/0x14c [ 85.213898][ T5059] el0_svc+0x78/0x1e0 [ 85.214530][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.215321][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.216339][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.218014][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.219183][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.220709][ T5059] Call trace: [ 85.221199][ T5059] dump_backtrace+0x0/0x43c [ 85.221872][ T5059] show_stack+0x2c/0x3c [ 85.222566][ T5059] __dump_stack+0x30/0x40 [ 85.223253][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.224026][ T5059] dump_stack+0x1c/0x5c [ 85.224715][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.225574][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.226373][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.227169][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.227965][ T5059] inet_sendmsg+0x154/0x284 [ 85.228710][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.229473][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.230241][ T5059] invoke_syscall+0x98/0x2b8 [ 85.230971][ T5059] el0_svc_common+0x138/0x258 [ 85.231689][ T5059] do_el0_svc+0x58/0x14c [ 85.232340][ T5059] el0_svc+0x78/0x1e0 [ 85.232909][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.233631][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.234728][ T5059] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.236260][ T5059] CPU: 0 PID: 5059 Comm: syz.0.51 Not tainted syzkaller #0 [ 85.237311][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.238706][ T5059] Call trace: [ 85.239126][ T5059] dump_backtrace+0x0/0x43c [ 85.239773][ T5059] show_stack+0x2c/0x3c [ 85.240417][ T5059] __dump_stack+0x30/0x40 [ 85.241009][ T5059] dump_stack_lvl+0xf8/0x160 [ 85.241664][ T5059] dump_stack+0x1c/0x5c [ 85.242322][ T5059] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.243144][ T5059] dccp_xmit_packet+0x298/0x448 [ 85.243814][ T5059] dccp_write_xmit+0x118/0x1d0 [ 85.244493][ T5059] dccp_sendmsg+0x538/0x8a8 [ 85.245149][ T5059] inet_sendmsg+0x154/0x284 [ 85.245843][ T5059] __sys_sendto+0x2e8/0x3d8 [ 85.246593][ T5059] __arm64_sys_sendto+0xd8/0xf8 [ 85.247426][ T5059] invoke_syscall+0x98/0x2b8 [ 85.248194][ T5059] el0_svc_common+0x138/0x258 [ 85.248957][ T5059] do_el0_svc+0x58/0x14c [ 85.249647][ T5059] el0_svc+0x78/0x1e0 [ 85.250306][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 85.251137][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 85.266043][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.268072][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.269263][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.270937][ T5061] Call trace: [ 85.271500][ T5061] dump_backtrace+0x0/0x43c [ 85.272216][ T5061] show_stack+0x2c/0x3c [ 85.272863][ T5061] __dump_stack+0x30/0x40 [ 85.273552][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.274255][ T5061] dump_stack+0x1c/0x5c [ 85.274857][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.275747][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.276595][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.277318][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.278106][ T5061] inet_sendmsg+0x154/0x284 [ 85.278854][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.279573][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.280377][ T5061] invoke_syscall+0x98/0x2b8 [ 85.281117][ T5061] el0_svc_common+0x138/0x258 [ 85.281926][ T5061] do_el0_svc+0x58/0x14c [ 85.282669][ T5061] el0_svc+0x78/0x1e0 [ 85.283310][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.284179][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.285554][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.287355][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.288477][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.289922][ T5061] Call trace: [ 85.290350][ T5061] dump_backtrace+0x0/0x43c [ 85.291051][ T5061] show_stack+0x2c/0x3c [ 85.291788][ T5061] __dump_stack+0x30/0x40 [ 85.292463][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.293176][ T5061] dump_stack+0x1c/0x5c [ 85.293818][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.294659][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.295415][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.296123][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.296831][ T5061] inet_sendmsg+0x154/0x284 [ 85.297517][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.298144][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.298847][ T5061] invoke_syscall+0x98/0x2b8 [ 85.299505][ T5061] el0_svc_common+0x138/0x258 [ 85.300215][ T5061] do_el0_svc+0x58/0x14c [ 85.300921][ T5061] el0_svc+0x78/0x1e0 [ 85.301561][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.302344][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.303550][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.305266][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.306362][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.307869][ T5061] Call trace: [ 85.308315][ T5061] dump_backtrace+0x0/0x43c [ 85.308992][ T5061] show_stack+0x2c/0x3c [ 85.309693][ T5061] __dump_stack+0x30/0x40 [ 85.310435][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.311194][ T5061] dump_stack+0x1c/0x5c [ 85.311894][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.312807][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.313668][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.314447][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.315213][ T5061] inet_sendmsg+0x154/0x284 [ 85.315973][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.316691][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.317505][ T5061] invoke_syscall+0x98/0x2b8 [ 85.318288][ T5061] el0_svc_common+0x138/0x258 [ 85.319101][ T5061] do_el0_svc+0x58/0x14c [ 85.319836][ T5061] el0_svc+0x78/0x1e0 [ 85.320476][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.321339][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.323163][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.325084][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.326277][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.327921][ T5061] Call trace: [ 85.328484][ T5061] dump_backtrace+0x0/0x43c [ 85.329246][ T5061] show_stack+0x2c/0x3c [ 85.329955][ T5061] __dump_stack+0x30/0x40 [ 85.330633][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.331406][ T5061] dump_stack+0x1c/0x5c [ 85.332119][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.332972][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.333721][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.334435][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.335117][ T5061] inet_sendmsg+0x154/0x284 [ 85.335799][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.336538][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.337315][ T5061] invoke_syscall+0x98/0x2b8 [ 85.338058][ T5061] el0_svc_common+0x138/0x258 [ 85.338740][ T5061] do_el0_svc+0x58/0x14c [ 85.339411][ T5061] el0_svc+0x78/0x1e0 [ 85.340042][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.340832][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.342405][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.344266][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.345431][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.347019][ T5061] Call trace: [ 85.347523][ T5061] dump_backtrace+0x0/0x43c [ 85.348281][ T5061] show_stack+0x2c/0x3c [ 85.349023][ T5061] __dump_stack+0x30/0x40 [ 85.349755][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.350601][ T5061] dump_stack+0x1c/0x5c [ 85.351295][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.352201][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.352977][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.353720][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.354432][ T5061] inet_sendmsg+0x154/0x284 [ 85.355143][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.355884][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.356651][ T5061] invoke_syscall+0x98/0x2b8 [ 85.357352][ T5061] el0_svc_common+0x138/0x258 [ 85.358078][ T5061] do_el0_svc+0x58/0x14c [ 85.358749][ T5061] el0_svc+0x78/0x1e0 [ 85.359402][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.360184][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.361508][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.363411][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.364590][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.366289][ T5061] Call trace: [ 85.366822][ T5061] dump_backtrace+0x0/0x43c [ 85.367585][ T5061] show_stack+0x2c/0x3c [ 85.368234][ T5061] __dump_stack+0x30/0x40 [ 85.368904][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.369631][ T5061] dump_stack+0x1c/0x5c [ 85.370223][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.371106][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.371943][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.372719][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.373375][ T5061] inet_sendmsg+0x154/0x284 [ 85.374100][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.374857][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.375642][ T5061] invoke_syscall+0x98/0x2b8 [ 85.376367][ T5061] el0_svc_common+0x138/0x258 [ 85.377111][ T5061] do_el0_svc+0x58/0x14c [ 85.377846][ T5061] el0_svc+0x78/0x1e0 [ 85.378500][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.379285][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.380510][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.382341][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.383526][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.385049][ T5061] Call trace: [ 85.385538][ T5061] dump_backtrace+0x0/0x43c [ 85.386249][ T5061] show_stack+0x2c/0x3c [ 85.386891][ T5061] __dump_stack+0x30/0x40 [ 85.387520][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.388230][ T5061] dump_stack+0x1c/0x5c [ 85.388813][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.389646][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.390444][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.391236][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.391926][ T5061] inet_sendmsg+0x154/0x284 [ 85.392642][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.393357][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.394132][ T5061] invoke_syscall+0x98/0x2b8 [ 85.394856][ T5061] el0_svc_common+0x138/0x258 [ 85.395591][ T5061] do_el0_svc+0x58/0x14c [ 85.396268][ T5061] el0_svc+0x78/0x1e0 [ 85.396883][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.397688][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.398817][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.400490][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.401541][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.403274][ T5061] Call trace: [ 85.403780][ T5061] dump_backtrace+0x0/0x43c [ 85.404495][ T5061] show_stack+0x2c/0x3c [ 85.405132][ T5061] __dump_stack+0x30/0x40 [ 85.405876][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.406587][ T5061] dump_stack+0x1c/0x5c [ 85.407287][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.408207][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.408990][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.409739][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.410517][ T5061] inet_sendmsg+0x154/0x284 [ 85.411204][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.411924][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.412671][ T5061] invoke_syscall+0x98/0x2b8 [ 85.413434][ T5061] el0_svc_common+0x138/0x258 [ 85.414256][ T5061] do_el0_svc+0x58/0x14c [ 85.414969][ T5061] el0_svc+0x78/0x1e0 [ 85.415606][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.416356][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.417506][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.419150][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.420281][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.421903][ T5061] Call trace: [ 85.422435][ T5061] dump_backtrace+0x0/0x43c [ 85.423128][ T5061] show_stack+0x2c/0x3c [ 85.423771][ T5061] __dump_stack+0x30/0x40 [ 85.424470][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.425142][ T5061] dump_stack+0x1c/0x5c [ 85.425768][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.426536][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.427244][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.428055][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.428768][ T5061] inet_sendmsg+0x154/0x284 [ 85.429491][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.430189][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.430925][ T5061] invoke_syscall+0x98/0x2b8 [ 85.431725][ T5061] el0_svc_common+0x138/0x258 [ 85.432422][ T5061] do_el0_svc+0x58/0x14c [ 85.433060][ T5061] el0_svc+0x78/0x1e0 [ 85.433653][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.434466][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.435334][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.437220][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.438337][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.439959][ T5061] Call trace: [ 85.440547][ T5061] dump_backtrace+0x0/0x43c [ 85.441306][ T5061] show_stack+0x2c/0x3c [ 85.441909][ T5061] __dump_stack+0x30/0x40 [ 85.442536][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.443169][ T5061] dump_stack+0x1c/0x5c [ 85.443823][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.444695][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.445431][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.446141][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.446806][ T5061] inet_sendmsg+0x154/0x284 [ 85.447478][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.448162][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.448873][ T5061] invoke_syscall+0x98/0x2b8 [ 85.449677][ T5061] el0_svc_common+0x138/0x258 [ 85.450522][ T5061] do_el0_svc+0x58/0x14c [ 85.451212][ T5061] el0_svc+0x78/0x1e0 [ 85.451825][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.452622][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.453766][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.455532][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.456747][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.458319][ T5061] Call trace: [ 85.458885][ T5061] dump_backtrace+0x0/0x43c [ 85.459602][ T5061] show_stack+0x2c/0x3c [ 85.460277][ T5061] __dump_stack+0x30/0x40 [ 85.460937][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.461665][ T5061] dump_stack+0x1c/0x5c [ 85.462332][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.463215][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.463979][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.464678][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.465337][ T5061] inet_sendmsg+0x154/0x284 [ 85.466033][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.466727][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.467428][ T5061] invoke_syscall+0x98/0x2b8 [ 85.468119][ T5061] el0_svc_common+0x138/0x258 [ 85.468872][ T5061] do_el0_svc+0x58/0x14c [ 85.469566][ T5061] el0_svc+0x78/0x1e0 [ 85.470238][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.471077][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.471945][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.473639][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.474727][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.476177][ T5061] Call trace: [ 85.476694][ T5061] dump_backtrace+0x0/0x43c [ 85.477401][ T5061] show_stack+0x2c/0x3c [ 85.478091][ T5061] __dump_stack+0x30/0x40 [ 85.478805][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.479548][ T5061] dump_stack+0x1c/0x5c [ 85.480219][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.481058][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.481780][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.482566][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.483267][ T5061] inet_sendmsg+0x154/0x284 [ 85.483956][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.484657][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.485415][ T5061] invoke_syscall+0x98/0x2b8 [ 85.486108][ T5061] el0_svc_common+0x138/0x258 [ 85.486801][ T5061] do_el0_svc+0x58/0x14c [ 85.487446][ T5061] el0_svc+0x78/0x1e0 [ 85.488108][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.488938][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.489798][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.491477][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.492495][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.493995][ T5061] Call trace: [ 85.494509][ T5061] dump_backtrace+0x0/0x43c [ 85.495189][ T5061] show_stack+0x2c/0x3c [ 85.495789][ T5061] __dump_stack+0x30/0x40 [ 85.496441][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.497127][ T5061] dump_stack+0x1c/0x5c [ 85.497723][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.498569][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.499338][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.500068][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.500790][ T5061] inet_sendmsg+0x154/0x284 [ 85.501468][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.502177][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.502991][ T5061] invoke_syscall+0x98/0x2b8 [ 85.503744][ T5061] el0_svc_common+0x138/0x258 [ 85.504437][ T5061] do_el0_svc+0x58/0x14c [ 85.505173][ T5061] el0_svc+0x78/0x1e0 [ 85.505819][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.506706][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.507646][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.509335][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.510399][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.512013][ T5061] Call trace: [ 85.512578][ T5061] dump_backtrace+0x0/0x43c [ 85.513414][ T5061] show_stack+0x2c/0x3c [ 85.514123][ T5061] __dump_stack+0x30/0x40 [ 85.514831][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.515619][ T5061] dump_stack+0x1c/0x5c [ 85.516264][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.517132][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.517913][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.518682][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.519497][ T5061] inet_sendmsg+0x154/0x284 [ 85.520206][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.520919][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.521617][ T5061] invoke_syscall+0x98/0x2b8 [ 85.522352][ T5061] el0_svc_common+0x138/0x258 [ 85.523042][ T5061] do_el0_svc+0x58/0x14c [ 85.523682][ T5061] el0_svc+0x78/0x1e0 [ 85.524283][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.525096][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.526095][ T5061] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.527842][ T5061] CPU: 0 PID: 5061 Comm: syz.0.52 Not tainted syzkaller #0 [ 85.528933][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.530421][ T5061] Call trace: [ 85.530943][ T5061] dump_backtrace+0x0/0x43c [ 85.531608][ T5061] show_stack+0x2c/0x3c [ 85.532218][ T5061] __dump_stack+0x30/0x40 [ 85.532936][ T5061] dump_stack_lvl+0xf8/0x160 [ 85.533724][ T5061] dump_stack+0x1c/0x5c [ 85.534450][ T5061] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.535346][ T5061] dccp_xmit_packet+0x298/0x448 [ 85.536124][ T5061] dccp_write_xmit+0x118/0x1d0 [ 85.536864][ T5061] dccp_sendmsg+0x538/0x8a8 [ 85.537585][ T5061] inet_sendmsg+0x154/0x284 [ 85.538290][ T5061] __sys_sendto+0x2e8/0x3d8 [ 85.539014][ T5061] __arm64_sys_sendto+0xd8/0xf8 [ 85.539733][ T5061] invoke_syscall+0x98/0x2b8 [ 85.540413][ T5061] el0_svc_common+0x138/0x258 [ 85.541128][ T5061] do_el0_svc+0x58/0x14c [ 85.541855][ T5061] el0_svc+0x78/0x1e0 [ 85.542481][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 85.543341][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 85.559805][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.561660][ T5063] CPU: 0 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.562780][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.564344][ T5063] Call trace: [ 85.564807][ T5063] dump_backtrace+0x0/0x43c [ 85.565491][ T5063] show_stack+0x2c/0x3c [ 85.566122][ T5063] __dump_stack+0x30/0x40 [ 85.566787][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.567475][ T5063] dump_stack+0x1c/0x5c [ 85.568118][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.568957][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.569673][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.570494][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.571285][ T5063] inet_sendmsg+0x154/0x284 [ 85.572086][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.572871][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.573640][ T5063] invoke_syscall+0x98/0x2b8 [ 85.574398][ T5063] el0_svc_common+0x138/0x258 [ 85.575150][ T5063] do_el0_svc+0x58/0x14c [ 85.575830][ T5063] el0_svc+0x78/0x1e0 [ 85.576516][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.577306][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.579281][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.581111][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.582254][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.583895][ T5063] Call trace: [ 85.584427][ T5063] dump_backtrace+0x0/0x43c [ 85.585181][ T5063] show_stack+0x2c/0x3c [ 85.585823][ T5063] __dump_stack+0x30/0x40 [ 85.586493][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.587218][ T5063] dump_stack+0x1c/0x5c [ 85.587875][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.588725][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.589504][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.590247][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.591003][ T5063] inet_sendmsg+0x154/0x284 [ 85.591768][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.592537][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.593340][ T5063] invoke_syscall+0x98/0x2b8 [ 85.594091][ T5063] el0_svc_common+0x138/0x258 [ 85.594825][ T5063] do_el0_svc+0x58/0x14c [ 85.595482][ T5063] el0_svc+0x78/0x1e0 [ 85.596078][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.596878][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.598103][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.599648][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.600724][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.602157][ T5063] Call trace: [ 85.602629][ T5063] dump_backtrace+0x0/0x43c [ 85.603279][ T5063] show_stack+0x2c/0x3c [ 85.603922][ T5063] __dump_stack+0x30/0x40 [ 85.604556][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.605277][ T5063] dump_stack+0x1c/0x5c [ 85.605888][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.606778][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.607459][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.608198][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.608907][ T5063] inet_sendmsg+0x154/0x284 [ 85.609526][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.610152][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.610797][ T5063] invoke_syscall+0x98/0x2b8 [ 85.611438][ T5063] el0_svc_common+0x138/0x258 [ 85.612207][ T5063] do_el0_svc+0x58/0x14c [ 85.612845][ T5063] el0_svc+0x78/0x1e0 [ 85.613528][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.614320][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.615227][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.616979][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.618117][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.619594][ T5063] Call trace: [ 85.620111][ T5063] dump_backtrace+0x0/0x43c [ 85.620785][ T5063] show_stack+0x2c/0x3c [ 85.621404][ T5063] __dump_stack+0x30/0x40 [ 85.622109][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.622826][ T5063] dump_stack+0x1c/0x5c [ 85.623545][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.624436][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.625213][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.625997][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.626671][ T5063] inet_sendmsg+0x154/0x284 [ 85.627390][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.628126][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.628961][ T5063] invoke_syscall+0x98/0x2b8 [ 85.629719][ T5063] el0_svc_common+0x138/0x258 [ 85.630511][ T5063] do_el0_svc+0x58/0x14c [ 85.631178][ T5063] el0_svc+0x78/0x1e0 [ 85.631886][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.632706][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.633767][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.635416][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.636503][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.637911][ T5063] Call trace: [ 85.638410][ T5063] dump_backtrace+0x0/0x43c [ 85.639094][ T5063] show_stack+0x2c/0x3c [ 85.639694][ T5063] __dump_stack+0x30/0x40 [ 85.640297][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.640924][ T5063] dump_stack+0x1c/0x5c [ 85.641496][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.642298][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.643033][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.643720][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.644335][ T5063] inet_sendmsg+0x154/0x284 [ 85.645058][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.645720][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.646465][ T5063] invoke_syscall+0x98/0x2b8 [ 85.647254][ T5063] el0_svc_common+0x138/0x258 [ 85.648017][ T5063] do_el0_svc+0x58/0x14c [ 85.648672][ T5063] el0_svc+0x78/0x1e0 [ 85.649320][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.650112][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.651031][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.652841][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.653937][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.655634][ T5063] Call trace: [ 85.656176][ T5063] dump_backtrace+0x0/0x43c [ 85.656932][ T5063] show_stack+0x2c/0x3c [ 85.657589][ T5063] __dump_stack+0x30/0x40 [ 85.658288][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.659026][ T5063] dump_stack+0x1c/0x5c [ 85.659660][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.660592][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.661299][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.662068][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.662751][ T5063] inet_sendmsg+0x154/0x284 [ 85.663523][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.664258][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.665021][ T5063] invoke_syscall+0x98/0x2b8 [ 85.665740][ T5063] el0_svc_common+0x138/0x258 [ 85.666479][ T5063] do_el0_svc+0x58/0x14c [ 85.667174][ T5063] el0_svc+0x78/0x1e0 [ 85.667786][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.668592][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.669449][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.671131][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.672230][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.673861][ T5063] Call trace: [ 85.674404][ T5063] dump_backtrace+0x0/0x43c [ 85.675148][ T5063] show_stack+0x2c/0x3c [ 85.675821][ T5063] __dump_stack+0x30/0x40 [ 85.676489][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.677223][ T5063] dump_stack+0x1c/0x5c [ 85.677893][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.678839][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.679648][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.680475][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.681122][ T5063] inet_sendmsg+0x154/0x284 [ 85.681872][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.682546][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.683339][ T5063] invoke_syscall+0x98/0x2b8 [ 85.684034][ T5063] el0_svc_common+0x138/0x258 [ 85.684787][ T5063] do_el0_svc+0x58/0x14c [ 85.685482][ T5063] el0_svc+0x78/0x1e0 [ 85.686134][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.686947][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.688245][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.689871][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.690899][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.692404][ T5063] Call trace: [ 85.692876][ T5063] dump_backtrace+0x0/0x43c [ 85.693539][ T5063] show_stack+0x2c/0x3c [ 85.694174][ T5063] __dump_stack+0x30/0x40 [ 85.694847][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.695582][ T5063] dump_stack+0x1c/0x5c [ 85.696219][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.697033][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.697779][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.698479][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.699192][ T5063] inet_sendmsg+0x154/0x284 [ 85.699892][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.700559][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.701290][ T5063] invoke_syscall+0x98/0x2b8 [ 85.701957][ T5063] el0_svc_common+0x138/0x258 [ 85.702664][ T5063] do_el0_svc+0x58/0x14c [ 85.703312][ T5063] el0_svc+0x78/0x1e0 [ 85.703931][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.704720][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.705628][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.707303][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.708423][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.710039][ T5063] Call trace: [ 85.710554][ T5063] dump_backtrace+0x0/0x43c [ 85.711211][ T5063] show_stack+0x2c/0x3c [ 85.711798][ T5063] __dump_stack+0x30/0x40 [ 85.712459][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.713166][ T5063] dump_stack+0x1c/0x5c [ 85.713740][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.714542][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.715234][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.715990][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.716762][ T5063] inet_sendmsg+0x154/0x284 [ 85.717474][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.718148][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.718939][ T5063] invoke_syscall+0x98/0x2b8 [ 85.719645][ T5063] el0_svc_common+0x138/0x258 [ 85.720386][ T5063] do_el0_svc+0x58/0x14c [ 85.721070][ T5063] el0_svc+0x78/0x1e0 [ 85.721688][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.722497][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.723401][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.725243][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.726447][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.728046][ T5063] Call trace: [ 85.728551][ T5063] dump_backtrace+0x0/0x43c [ 85.729240][ T5063] show_stack+0x2c/0x3c [ 85.729909][ T5063] __dump_stack+0x30/0x40 [ 85.730592][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.731282][ T5063] dump_stack+0x1c/0x5c [ 85.731961][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.732837][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.733545][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.734250][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.734884][ T5063] inet_sendmsg+0x154/0x284 [ 85.735563][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.736190][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.736887][ T5063] invoke_syscall+0x98/0x2b8 [ 85.737548][ T5063] el0_svc_common+0x138/0x258 [ 85.738308][ T5063] do_el0_svc+0x58/0x14c [ 85.738958][ T5063] el0_svc+0x78/0x1e0 [ 85.739650][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.740446][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.741255][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.742848][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.743875][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.745404][ T5063] Call trace: [ 85.745873][ T5063] dump_backtrace+0x0/0x43c [ 85.746574][ T5063] show_stack+0x2c/0x3c [ 85.747271][ T5063] __dump_stack+0x30/0x40 [ 85.747953][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.748691][ T5063] dump_stack+0x1c/0x5c [ 85.749342][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.750233][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.750936][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.751676][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.752446][ T5063] inet_sendmsg+0x154/0x284 [ 85.753200][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.753936][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.754749][ T5063] invoke_syscall+0x98/0x2b8 [ 85.755524][ T5063] el0_svc_common+0x138/0x258 [ 85.756327][ T5063] do_el0_svc+0x58/0x14c [ 85.756931][ T5063] el0_svc+0x78/0x1e0 [ 85.757644][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.758483][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.759359][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.760970][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.762092][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.763614][ T5063] Call trace: [ 85.764045][ T5063] dump_backtrace+0x0/0x43c [ 85.764732][ T5063] show_stack+0x2c/0x3c [ 85.765403][ T5063] __dump_stack+0x30/0x40 [ 85.766076][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.766850][ T5063] dump_stack+0x1c/0x5c [ 85.767572][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.768659][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.769471][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.770189][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.770898][ T5063] inet_sendmsg+0x154/0x284 [ 85.771622][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.772360][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.773180][ T5063] invoke_syscall+0x98/0x2b8 [ 85.773929][ T5063] el0_svc_common+0x138/0x258 [ 85.774682][ T5063] do_el0_svc+0x58/0x14c [ 85.775292][ T5063] el0_svc+0x78/0x1e0 [ 85.775864][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.776625][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.777519][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.779338][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.780474][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.781996][ T5063] Call trace: [ 85.782509][ T5063] dump_backtrace+0x0/0x43c [ 85.783177][ T5063] show_stack+0x2c/0x3c [ 85.783783][ T5063] __dump_stack+0x30/0x40 [ 85.784437][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.785120][ T5063] dump_stack+0x1c/0x5c [ 85.785784][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.786658][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.787434][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.788182][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.788903][ T5063] inet_sendmsg+0x154/0x284 [ 85.789586][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.790251][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.790945][ T5063] invoke_syscall+0x98/0x2b8 [ 85.791585][ T5063] el0_svc_common+0x138/0x258 [ 85.792232][ T5063] do_el0_svc+0x58/0x14c [ 85.792833][ T5063] el0_svc+0x78/0x1e0 [ 85.793421][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.794137][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.794977][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.796670][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.797729][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.799218][ T5063] Call trace: [ 85.799667][ T5063] dump_backtrace+0x0/0x43c [ 85.800390][ T5063] show_stack+0x2c/0x3c [ 85.801045][ T5063] __dump_stack+0x30/0x40 [ 85.801756][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.802451][ T5063] dump_stack+0x1c/0x5c [ 85.803137][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.803971][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.804703][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.805501][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.806202][ T5063] inet_sendmsg+0x154/0x284 [ 85.806894][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.807630][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.808310][ T5063] invoke_syscall+0x98/0x2b8 [ 85.808950][ T5063] el0_svc_common+0x138/0x258 [ 85.809649][ T5063] do_el0_svc+0x58/0x14c [ 85.810260][ T5063] el0_svc+0x78/0x1e0 [ 85.810855][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.811584][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.812394][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.813920][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.814956][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.816479][ T5063] Call trace: [ 85.816992][ T5063] dump_backtrace+0x0/0x43c [ 85.817644][ T5063] show_stack+0x2c/0x3c [ 85.818282][ T5063] __dump_stack+0x30/0x40 [ 85.818926][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.819647][ T5063] dump_stack+0x1c/0x5c [ 85.820308][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.821150][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.821898][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.822680][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.823401][ T5063] inet_sendmsg+0x154/0x284 [ 85.824077][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.824766][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.825596][ T5063] invoke_syscall+0x98/0x2b8 [ 85.826350][ T5063] el0_svc_common+0x138/0x258 [ 85.827163][ T5063] do_el0_svc+0x58/0x14c [ 85.827869][ T5063] el0_svc+0x78/0x1e0 [ 85.828531][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.829346][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.830286][ T5063] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.831825][ T5063] CPU: 1 PID: 5063 Comm: syz.0.53 Not tainted syzkaller #0 [ 85.832945][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.834583][ T5063] Call trace: [ 85.835086][ T5063] dump_backtrace+0x0/0x43c [ 85.835807][ T5063] show_stack+0x2c/0x3c [ 85.836495][ T5063] __dump_stack+0x30/0x40 [ 85.837139][ T5063] dump_stack_lvl+0xf8/0x160 [ 85.837830][ T5063] dump_stack+0x1c/0x5c [ 85.838482][ T5063] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.839285][ T5063] dccp_xmit_packet+0x298/0x448 [ 85.840014][ T5063] dccp_write_xmit+0x118/0x1d0 [ 85.840756][ T5063] dccp_sendmsg+0x538/0x8a8 [ 85.841459][ T5063] inet_sendmsg+0x154/0x284 [ 85.842172][ T5063] __sys_sendto+0x2e8/0x3d8 [ 85.842907][ T5063] __arm64_sys_sendto+0xd8/0xf8 [ 85.843658][ T5063] invoke_syscall+0x98/0x2b8 [ 85.844346][ T5063] el0_svc_common+0x138/0x258 [ 85.845049][ T5063] do_el0_svc+0x58/0x14c [ 85.845712][ T5063] el0_svc+0x78/0x1e0 [ 85.846331][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 85.847083][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 85.862727][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.864578][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.865615][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.867090][ T5065] Call trace: [ 85.867606][ T5065] dump_backtrace+0x0/0x43c [ 85.868321][ T5065] show_stack+0x2c/0x3c [ 85.868975][ T5065] __dump_stack+0x30/0x40 [ 85.869564][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.870229][ T5065] dump_stack+0x1c/0x5c [ 85.870877][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.871799][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.872571][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.873339][ T5065] dccp_sendmsg+0x538/0x8a8 [ 85.874041][ T5065] inet_sendmsg+0x154/0x284 [ 85.874739][ T5065] __sys_sendto+0x2e8/0x3d8 [ 85.875467][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 85.876171][ T5065] invoke_syscall+0x98/0x2b8 [ 85.876892][ T5065] el0_svc_common+0x138/0x258 [ 85.877648][ T5065] do_el0_svc+0x58/0x14c [ 85.878344][ T5065] el0_svc+0x78/0x1e0 [ 85.879013][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 85.879821][ T5065] el0t_64_sync+0x1a0/0x1a4 [ 85.880693][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.882371][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.883503][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.884990][ T5065] Call trace: [ 85.885451][ T5065] dump_backtrace+0x0/0x43c [ 85.886147][ T5065] show_stack+0x2c/0x3c [ 85.886821][ T5065] __dump_stack+0x30/0x40 [ 85.887459][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.888122][ T5065] dump_stack+0x1c/0x5c [ 85.888754][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.889549][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.890219][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.890938][ T5065] dccp_sendmsg+0x538/0x8a8 [ 85.891608][ T5065] inet_sendmsg+0x154/0x284 [ 85.892248][ T5065] __sys_sendto+0x2e8/0x3d8 [ 85.892922][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 85.893650][ T5065] invoke_syscall+0x98/0x2b8 [ 85.894331][ T5065] el0_svc_common+0x138/0x258 [ 85.895049][ T5065] do_el0_svc+0x58/0x14c [ 85.895673][ T5065] el0_svc+0x78/0x1e0 [ 85.896248][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 85.897007][ T5065] el0t_64_sync+0x1a0/0x1a4 [ 85.897904][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.899663][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.900626][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.902138][ T5065] Call trace: [ 85.902662][ T5065] dump_backtrace+0x0/0x43c [ 85.903345][ T5065] show_stack+0x2c/0x3c [ 85.904038][ T5065] __dump_stack+0x30/0x40 [ 85.904782][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.905584][ T5065] dump_stack+0x1c/0x5c [ 85.906322][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.907219][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.907971][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.908754][ T5065] dccp_sendmsg+0x538/0x8a8 [ 85.909561][ T5065] inet_sendmsg+0x154/0x284 [ 85.910284][ T5065] __sys_sendto+0x2e8/0x3d8 [ 85.910988][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 85.911743][ T5065] invoke_syscall+0x98/0x2b8 [ 85.912500][ T5065] el0_svc_common+0x138/0x258 [ 85.913269][ T5065] do_el0_svc+0x58/0x14c [ 85.914000][ T5065] el0_svc+0x78/0x1e0 [ 85.914660][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 85.915425][ T5065] el0t_64_sync+0x1a0/0x1a4 [ 85.916514][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.918319][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.919423][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.920966][ T5065] Call trace: [ 85.921434][ T5065] dump_backtrace+0x0/0x43c [ 85.922113][ T5065] show_stack+0x2c/0x3c [ 85.922741][ T5065] __dump_stack+0x30/0x40 [ 85.923376][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.924092][ T5065] dump_stack+0x1c/0x5c [ 85.924693][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.925500][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.926225][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.926922][ T5065] dccp_sendmsg+0x538/0x8a8 [ 85.927645][ T5065] inet_sendmsg+0x154/0x284 [ 85.928316][ T5065] __sys_sendto+0x2e8/0x3d8 [ 85.929007][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 85.929694][ T5065] invoke_syscall+0x98/0x2b8 [ 85.930309][ T5065] el0_svc_common+0x138/0x258 [ 85.931043][ T5065] do_el0_svc+0x58/0x14c [ 85.931740][ T5065] el0_svc+0x78/0x1e0 [ 85.932371][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 85.933121][ T5065] el0t_64_sync+0x1a0/0x1a4 [ 85.934391][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.936028][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.937107][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.938513][ T5065] Call trace: [ 85.938965][ T5065] dump_backtrace+0x0/0x43c [ 85.939641][ T5065] show_stack+0x2c/0x3c [ 85.940224][ T5065] __dump_stack+0x30/0x40 [ 85.940838][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.941444][ T5065] dump_stack+0x1c/0x5c [ 85.942060][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.942933][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.943738][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.944528][ T5065] dccp_sendmsg+0x538/0x8a8 [ 85.945214][ T5065] inet_sendmsg+0x154/0x284 [ 85.945922][ T5065] __sys_sendto+0x2e8/0x3d8 [ 85.946600][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 85.947286][ T5065] invoke_syscall+0x98/0x2b8 [ 85.948028][ T5065] el0_svc_common+0x138/0x258 [ 85.948776][ T5065] do_el0_svc+0x58/0x14c [ 85.949490][ T5065] el0_svc+0x78/0x1e0 [ 85.950151][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 85.950933][ T5065] el0t_64_sync+0x1a0/0x1a4 [ 85.951817][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.953514][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.954546][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.956023][ T5065] Call trace: [ 85.956524][ T5065] dump_backtrace+0x0/0x43c [ 85.957253][ T5065] show_stack+0x2c/0x3c [ 85.957935][ T5065] __dump_stack+0x30/0x40 [ 85.958586][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.959309][ T5065] dump_stack+0x1c/0x5c [ 85.960005][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.960858][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.961643][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.962394][ T5065] dccp_sendmsg+0x538/0x8a8 [ 85.963090][ T5065] inet_sendmsg+0x154/0x284 [ 85.963851][ T5065] __sys_sendto+0x2e8/0x3d8 [ 85.964635][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 85.965447][ T5065] invoke_syscall+0x98/0x2b8 [ 85.966196][ T5065] el0_svc_common+0x138/0x258 [ 85.966910][ T5065] do_el0_svc+0x58/0x14c [ 85.967575][ T5065] el0_svc+0x78/0x1e0 [ 85.968187][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 85.968987][ T5065] el0t_64_sync+0x1a0/0x1a4 [ 85.969833][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.971565][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.972672][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.974379][ T5065] Call trace: [ 85.974918][ T5065] dump_backtrace+0x0/0x43c [ 85.975662][ T5065] show_stack+0x2c/0x3c [ 85.976353][ T5065] __dump_stack+0x30/0x40 [ 85.977055][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.977744][ T5065] dump_stack+0x1c/0x5c [ 85.978386][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.979272][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.980061][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.980862][ T5065] dccp_sendmsg+0x538/0x8a8 [ 85.981635][ T5065] inet_sendmsg+0x154/0x284 [ 85.982377][ T5065] __sys_sendto+0x2e8/0x3d8 [ 85.983102][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 85.983933][ T5065] invoke_syscall+0x98/0x2b8 [ 85.984690][ T5065] el0_svc_common+0x138/0x258 [ 85.985444][ T5065] do_el0_svc+0x58/0x14c [ 85.986188][ T5065] el0_svc+0x78/0x1e0 [ 85.986829][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 85.987636][ T5065] el0t_64_sync+0x1a0/0x1a4 [ 85.988523][ T5065] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.990302][ T5065] CPU: 1 PID: 5065 Comm: syz.0.54 Not tainted syzkaller #0 [ 85.991410][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 85.993035][ T5065] Call trace: [ 85.993533][ T5065] dump_backtrace+0x0/0x43c [ 85.994334][ T5065] show_stack+0x2c/0x3c [ 85.994974][ T5065] __dump_stack+0x30/0x40 [ 85.995691][ T5065] dump_stack_lvl+0xf8/0x160 [ 85.996407][ T5065] dump_stack+0x1c/0x5c [ 85.997100][ T5065] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.997916][ T5065] dccp_xmit_packet+0x298/0x448 [ 85.998716][ T5065] dccp_write_xmit+0x118/0x1d0 [ 85.999446][ T5065] dccp_sendmsg+0x538/0x8a8 [ 86.000152][ T5065] inet_sendmsg+0x154/0x284 [ 86.000891][ T5065] __sys_sendto+0x2e8/0x3d8 [ 86.001607][ T5065] __arm64_sys_sendto+0xd8/0xf8 [ 86.002431][ T5065] invoke_syscall+0x98/0x2b8 [ 86.003207][ T5065] el0_svc_common+0x138/0x258 [ 86.004004][ T5065] do_el0_svc+0x58/0x14c