Warning: Permanently added '10.128.0.201' (ED25519) to the list of known hosts. 1970/01/01 00:01:03 parsed 1 programs [ 64.736203][ T4618] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 67.558094][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.559256][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.560871][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.571366][ T1644] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.572644][ T1644] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.574896][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.650282][ T4654] chnl_net:caif_netlink_parms(): no params data found [ 67.669661][ T4654] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.670882][ T4654] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.672392][ T4654] device bridge_slave_0 entered promiscuous mode [ 67.674749][ T4654] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.675943][ T4654] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.677583][ T4654] device bridge_slave_1 entered promiscuous mode [ 67.689812][ T4654] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.692435][ T4654] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.701473][ T4654] team0: Port device team_slave_0 added [ 67.703486][ T4654] team0: Port device team_slave_1 added [ 67.711213][ T4654] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.712272][ T4654] 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. [ 67.716312][ T4654] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.719368][ T4654] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.720458][ T4654] 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. [ 67.724932][ T4654] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.775439][ T4654] device hsr_slave_0 entered promiscuous mode [ 67.814467][ T4654] device hsr_slave_1 entered promiscuous mode [ 68.526290][ T4654] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.566396][ T4654] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.615633][ T4654] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.636132][ T4654] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.734032][ T4654] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.748790][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.750529][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.753744][ T4654] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.758066][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.759654][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.761045][ T1644] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.762048][ T1644] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.763338][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.769482][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.771219][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.772587][ T1644] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.773643][ T1644] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.781919][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.783725][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.785478][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.787794][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.789495][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.791182][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.796211][ T4654] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.797854][ T4654] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.804033][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.815850][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.817640][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.819712][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.821254][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.823337][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.857492][ T4654] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.858766][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.859979][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.867285][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.868984][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.876761][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.878152][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.879828][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.881057][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.882823][ T4654] device veth0_vlan entered promiscuous mode [ 68.888395][ T4654] device veth1_vlan entered promiscuous mode [ 68.898770][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.900199][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.901693][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.903500][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.918510][ T4654] device veth0_macvtap entered promiscuous mode [ 68.922386][ T4654] device veth1_macvtap entered promiscuous mode [ 68.929190][ T4654] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.930495][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.932111][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.933522][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.935889][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.938807][ T4654] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.941864][ T4654] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.943027][ T4654] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.944612][ T4654] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.945910][ T4654] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.948778][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.950479][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 1970/01/01 00:01:09 executed programs: 0 [ 69.626021][ T2066] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.627074][ T2066] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.639197][ T21] cfg80211: failed to load regulatory.db [ 69.693970][ T4862] chnl_net:caif_netlink_parms(): no params data found [ 69.740283][ T4862] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.741506][ T4862] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.743102][ T4862] device bridge_slave_0 entered promiscuous mode [ 69.746014][ T4862] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.747054][ T4862] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.748570][ T4862] device bridge_slave_1 entered promiscuous mode [ 69.759275][ T4862] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.762111][ T4862] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.789350][ T4862] team0: Port device team_slave_0 added [ 69.791248][ T4862] team0: Port device team_slave_1 added [ 69.809799][ T4862] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.810844][ T4862] 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. [ 69.817405][ T4862] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.820342][ T4862] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.821368][ T4862] 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. [ 69.825381][ T4862] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.885617][ T4862] device hsr_slave_0 entered promiscuous mode [ 69.904691][ T4862] device hsr_slave_1 entered promiscuous mode [ 69.964283][ T4862] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.965405][ T4862] Cannot create hsr debugfs directory [ 70.068237][ T4862] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.624551][ T1541] Bluetooth: hci0: command 0x0409 tx timeout [ 73.230474][ T4862] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.704761][ T4346] Bluetooth: hci0: command 0x041b tx timeout [ 75.078288][ T4862] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.121548][ T4862] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.279441][ T4862] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.316625][ T4862] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.367675][ T4862] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.415788][ T4862] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.500572][ T4862] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.504890][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.506409][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.509667][ T4862] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.512137][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.515703][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.517129][ T1794] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.518167][ T1794] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.519596][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.522418][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.523990][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.526374][ T1794] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.527387][ T1794] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.530531][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.533784][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.542298][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.544083][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.546043][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.547695][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.549192][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.551659][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.553151][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.556674][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.558164][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.560460][ T4862] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.602707][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.604083][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.617578][ T4862] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.623395][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.626622][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.634564][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.636118][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.637478][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.638879][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.640342][ T4862] device veth0_vlan entered promiscuous mode [ 75.644511][ T4862] device veth1_vlan entered promiscuous mode [ 75.652585][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.654009][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.655677][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.657185][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.659698][ T4862] device veth0_macvtap entered promiscuous mode [ 75.662429][ T4862] device veth1_macvtap entered promiscuous mode [ 75.668376][ T4862] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 75.669881][ T4862] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.671953][ T4862] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.673171][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.676328][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.677776][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.679319][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.681839][ T4862] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 75.683293][ T4862] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.686150][ T4862] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.687433][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.688923][ T570] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.692443][ T4862] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.693842][ T4862] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.695999][ T4862] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.697245][ T4862] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.721036][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.722247][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.729198][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.732083][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.733283][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.736498][ T1794] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:15 executed programs: 2 [ 75.762112][ T5072] dccp_xmit_packet: Payload too large (65475) for featneg. [ 75.783897][ T5074] dccp_xmit_packet: Payload too large (65475) for featneg. [ 75.785230][ T4113] Bluetooth: hci0: command 0x040f tx timeout [ 75.793296][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.795798][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.796886][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.798407][ T5074] Call trace: [ 75.798855][ T5074] dump_backtrace+0x0/0x43c [ 75.799495][ T5074] show_stack+0x2c/0x3c [ 75.800043][ T5074] __dump_stack+0x30/0x40 [ 75.800667][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.801385][ T5074] dump_stack+0x1c/0x5c [ 75.802002][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.802806][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.803516][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.804206][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.804876][ T5074] inet_sendmsg+0x154/0x284 [ 75.805542][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.806249][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.806984][ T5074] invoke_syscall+0x98/0x2b8 [ 75.807698][ T5074] el0_svc_common+0x138/0x258 [ 75.808403][ T5074] do_el0_svc+0x58/0x14c [ 75.808995][ T5074] el0_svc+0x78/0x1e0 [ 75.809629][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.810365][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.812678][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.814485][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.815531][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.816901][ T5074] Call trace: [ 75.817344][ T5074] dump_backtrace+0x0/0x43c [ 75.817975][ T5074] show_stack+0x2c/0x3c [ 75.818568][ T5074] __dump_stack+0x30/0x40 [ 75.819140][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.819721][ T5074] dump_stack+0x1c/0x5c [ 75.820292][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.821114][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.821811][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.822505][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.823145][ T5074] inet_sendmsg+0x154/0x284 [ 75.823832][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.824538][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.825188][ T5074] invoke_syscall+0x98/0x2b8 [ 75.825853][ T5074] el0_svc_common+0x138/0x258 [ 75.826553][ T5074] do_el0_svc+0x58/0x14c [ 75.827172][ T5074] el0_svc+0x78/0x1e0 [ 75.827774][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.828501][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.830479][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.832049][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.833075][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.834586][ T5074] Call trace: [ 75.835039][ T5074] dump_backtrace+0x0/0x43c [ 75.835672][ T5074] show_stack+0x2c/0x3c [ 75.836244][ T5074] __dump_stack+0x30/0x40 [ 75.836859][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.837529][ T5074] dump_stack+0x1c/0x5c [ 75.838123][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.838869][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.839553][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.840263][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.840894][ T5074] inet_sendmsg+0x154/0x284 [ 75.841561][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.842206][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.842908][ T5074] invoke_syscall+0x98/0x2b8 [ 75.843605][ T5074] el0_svc_common+0x138/0x258 [ 75.844278][ T5074] do_el0_svc+0x58/0x14c [ 75.844881][ T5074] el0_svc+0x78/0x1e0 [ 75.845455][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.846143][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.847324][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.849043][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.850065][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.851516][ T5074] Call trace: [ 75.851994][ T5074] dump_backtrace+0x0/0x43c [ 75.852681][ T5074] show_stack+0x2c/0x3c [ 75.853245][ T5074] __dump_stack+0x30/0x40 [ 75.853892][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.854511][ T5074] dump_stack+0x1c/0x5c [ 75.855125][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.855882][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.856548][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.857250][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.857891][ T5074] inet_sendmsg+0x154/0x284 [ 75.858580][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.859230][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.859898][ T5074] invoke_syscall+0x98/0x2b8 [ 75.860570][ T5074] el0_svc_common+0x138/0x258 [ 75.861218][ T5074] do_el0_svc+0x58/0x14c [ 75.861868][ T5074] el0_svc+0x78/0x1e0 [ 75.862426][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.863147][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.864067][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.865951][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.866957][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.868550][ T5074] Call trace: [ 75.869048][ T5074] dump_backtrace+0x0/0x43c [ 75.869775][ T5074] show_stack+0x2c/0x3c [ 75.870386][ T5074] __dump_stack+0x30/0x40 [ 75.871034][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.871672][ T5074] dump_stack+0x1c/0x5c [ 75.872267][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.873073][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.873781][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.874459][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.875108][ T5074] inet_sendmsg+0x154/0x284 [ 75.875821][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.876440][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.877084][ T5074] invoke_syscall+0x98/0x2b8 [ 75.877736][ T5074] el0_svc_common+0x138/0x258 [ 75.878360][ T5074] do_el0_svc+0x58/0x14c [ 75.878965][ T5074] el0_svc+0x78/0x1e0 [ 75.879525][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.880294][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.881307][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.882989][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.884066][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.885505][ T5074] Call trace: [ 75.885979][ T5074] dump_backtrace+0x0/0x43c [ 75.886642][ T5074] show_stack+0x2c/0x3c [ 75.887251][ T5074] __dump_stack+0x30/0x40 [ 75.887817][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.888515][ T5074] dump_stack+0x1c/0x5c [ 75.889035][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.889843][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.890580][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.891269][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.891918][ T5074] inet_sendmsg+0x154/0x284 [ 75.892587][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.893202][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.893888][ T5074] invoke_syscall+0x98/0x2b8 [ 75.894591][ T5074] el0_svc_common+0x138/0x258 [ 75.895276][ T5074] do_el0_svc+0x58/0x14c [ 75.895936][ T5074] el0_svc+0x78/0x1e0 [ 75.896546][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.897304][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.898420][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.900142][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.901195][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.902660][ T5074] Call trace: [ 75.903117][ T5074] dump_backtrace+0x0/0x43c [ 75.903773][ T5074] show_stack+0x2c/0x3c [ 75.904368][ T5074] __dump_stack+0x30/0x40 [ 75.904974][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.905573][ T5074] dump_stack+0x1c/0x5c [ 75.906156][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.906943][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.907661][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.908387][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.909026][ T5074] inet_sendmsg+0x154/0x284 [ 75.909627][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.910283][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.910963][ T5074] invoke_syscall+0x98/0x2b8 [ 75.911528][ T5074] el0_svc_common+0x138/0x258 [ 75.912198][ T5074] do_el0_svc+0x58/0x14c [ 75.912832][ T5074] el0_svc+0x78/0x1e0 [ 75.913401][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.914144][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.915190][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.916779][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.917754][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.919148][ T5074] Call trace: [ 75.919648][ T5074] dump_backtrace+0x0/0x43c [ 75.920278][ T5074] show_stack+0x2c/0x3c [ 75.920839][ T5074] __dump_stack+0x30/0x40 [ 75.921452][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.922129][ T5074] dump_stack+0x1c/0x5c [ 75.922715][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.923485][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.924137][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.924843][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.925514][ T5074] inet_sendmsg+0x154/0x284 [ 75.926207][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.926882][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.927561][ T5074] invoke_syscall+0x98/0x2b8 [ 75.928170][ T5074] el0_svc_common+0x138/0x258 [ 75.928798][ T5074] do_el0_svc+0x58/0x14c [ 75.929438][ T5074] el0_svc+0x78/0x1e0 [ 75.930018][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.930727][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.931849][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.933601][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.934737][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.936298][ T5074] Call trace: [ 75.936748][ T5074] dump_backtrace+0x0/0x43c [ 75.937495][ T5074] show_stack+0x2c/0x3c [ 75.938131][ T5074] __dump_stack+0x30/0x40 [ 75.938756][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.939392][ T5074] dump_stack+0x1c/0x5c [ 75.939964][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.940725][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.941447][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.942130][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.942778][ T5074] inet_sendmsg+0x154/0x284 [ 75.943415][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.944030][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.944778][ T5074] invoke_syscall+0x98/0x2b8 [ 75.945438][ T5074] el0_svc_common+0x138/0x258 [ 75.946134][ T5074] do_el0_svc+0x58/0x14c [ 75.946748][ T5074] el0_svc+0x78/0x1e0 [ 75.947285][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.948000][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.949069][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.950729][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.951780][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.953179][ T5074] Call trace: [ 75.953637][ T5074] dump_backtrace+0x0/0x43c [ 75.954246][ T5074] show_stack+0x2c/0x3c [ 75.954869][ T5074] __dump_stack+0x30/0x40 [ 75.955505][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.956211][ T5074] dump_stack+0x1c/0x5c [ 75.956795][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.957577][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.958259][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.958932][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.959551][ T5074] inet_sendmsg+0x154/0x284 [ 75.960185][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.960806][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.961499][ T5074] invoke_syscall+0x98/0x2b8 [ 75.962134][ T5074] el0_svc_common+0x138/0x258 [ 75.962810][ T5074] do_el0_svc+0x58/0x14c [ 75.963402][ T5074] el0_svc+0x78/0x1e0 [ 75.963919][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.964615][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.965553][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.967071][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.968101][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.969477][ T5074] Call trace: [ 75.969898][ T5074] dump_backtrace+0x0/0x43c [ 75.970527][ T5074] show_stack+0x2c/0x3c [ 75.971064][ T5074] __dump_stack+0x30/0x40 [ 75.971683][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.972347][ T5074] dump_stack+0x1c/0x5c [ 75.972967][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.973767][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.974479][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.975166][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.975791][ T5074] inet_sendmsg+0x154/0x284 [ 75.976434][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.977059][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.977771][ T5074] invoke_syscall+0x98/0x2b8 [ 75.978473][ T5074] el0_svc_common+0x138/0x258 [ 75.979103][ T5074] do_el0_svc+0x58/0x14c [ 75.979690][ T5074] el0_svc+0x78/0x1e0 [ 75.980214][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.981002][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 75.981886][ T5074] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 75.983423][ T5074] CPU: 0 PID: 5074 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.984463][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.985840][ T5074] Call trace: [ 75.986315][ T5074] dump_backtrace+0x0/0x43c [ 75.986930][ T5074] show_stack+0x2c/0x3c [ 75.987491][ T5074] __dump_stack+0x30/0x40 [ 75.988082][ T5074] dump_stack_lvl+0xf8/0x160 [ 75.988738][ T5074] dump_stack+0x1c/0x5c [ 75.989351][ T5074] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 75.990157][ T5074] dccp_xmit_packet+0x298/0x448 [ 75.990901][ T5074] dccp_write_xmit+0x118/0x1d0 [ 75.991637][ T5074] dccp_sendmsg+0x538/0x8a8 [ 75.992268][ T5074] inet_sendmsg+0x154/0x284 [ 75.992848][ T5074] __sys_sendto+0x2e8/0x3d8 [ 75.993425][ T5074] __arm64_sys_sendto+0xd8/0xf8 [ 75.994120][ T5074] invoke_syscall+0x98/0x2b8 [ 75.994763][ T5074] el0_svc_common+0x138/0x258 [ 75.995424][ T5074] do_el0_svc+0x58/0x14c [ 75.995928][ T5074] el0_svc+0x78/0x1e0 [ 75.996451][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 75.997148][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 76.011471][ T5076] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.019564][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.021224][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.022300][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.023759][ T5076] Call trace: [ 76.024216][ T5076] dump_backtrace+0x0/0x43c [ 76.024897][ T5076] show_stack+0x2c/0x3c [ 76.025475][ T5076] __dump_stack+0x30/0x40 [ 76.026097][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.026764][ T5076] dump_stack+0x1c/0x5c [ 76.027353][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.028150][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.028828][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.029543][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.030157][ T5076] inet_sendmsg+0x154/0x284 [ 76.030802][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.031416][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.032068][ T5076] invoke_syscall+0x98/0x2b8 [ 76.032708][ T5076] el0_svc_common+0x138/0x258 [ 76.033390][ T5076] do_el0_svc+0x58/0x14c [ 76.034009][ T5076] el0_svc+0x78/0x1e0 [ 76.034584][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.035246][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.036422][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.037990][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.038927][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.040275][ T5076] Call trace: [ 76.040676][ T5076] dump_backtrace+0x0/0x43c [ 76.041282][ T5076] show_stack+0x2c/0x3c [ 76.041828][ T5076] __dump_stack+0x30/0x40 [ 76.042461][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.043101][ T5076] dump_stack+0x1c/0x5c [ 76.043687][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.044456][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.045185][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.045880][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.046548][ T5076] inet_sendmsg+0x154/0x284 [ 76.047143][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.047779][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.048418][ T5076] invoke_syscall+0x98/0x2b8 [ 76.049010][ T5076] el0_svc_common+0x138/0x258 [ 76.049667][ T5076] do_el0_svc+0x58/0x14c [ 76.050325][ T5076] el0_svc+0x78/0x1e0 [ 76.050888][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.051627][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.053049][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.054897][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.055984][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.057514][ T5076] Call trace: [ 76.058001][ T5076] dump_backtrace+0x0/0x43c [ 76.058623][ T5076] show_stack+0x2c/0x3c [ 76.059207][ T5076] __dump_stack+0x30/0x40 [ 76.059839][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.060542][ T5076] dump_stack+0x1c/0x5c [ 76.061132][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.061898][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.062656][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.063434][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.064076][ T5076] inet_sendmsg+0x154/0x284 [ 76.064761][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.065464][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.066184][ T5076] invoke_syscall+0x98/0x2b8 [ 76.066898][ T5076] el0_svc_common+0x138/0x258 [ 76.067598][ T5076] do_el0_svc+0x58/0x14c [ 76.068187][ T5076] el0_svc+0x78/0x1e0 [ 76.068752][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.069473][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.070595][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.072216][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.073301][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.074872][ T5076] Call trace: [ 76.075334][ T5076] dump_backtrace+0x0/0x43c [ 76.076001][ T5076] show_stack+0x2c/0x3c [ 76.076592][ T5076] __dump_stack+0x30/0x40 [ 76.077255][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.077938][ T5076] dump_stack+0x1c/0x5c [ 76.078516][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.079308][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.079989][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.080644][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.081259][ T5076] inet_sendmsg+0x154/0x284 [ 76.081882][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.082540][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.083241][ T5076] invoke_syscall+0x98/0x2b8 [ 76.083936][ T5076] el0_svc_common+0x138/0x258 [ 76.084639][ T5076] do_el0_svc+0x58/0x14c [ 76.085237][ T5076] el0_svc+0x78/0x1e0 [ 76.085817][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.086551][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.087512][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.089014][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.090047][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.091421][ T5076] Call trace: [ 76.091924][ T5076] dump_backtrace+0x0/0x43c [ 76.092571][ T5076] show_stack+0x2c/0x3c [ 76.093144][ T5076] __dump_stack+0x30/0x40 [ 76.093750][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.094386][ T5076] dump_stack+0x1c/0x5c [ 76.095008][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.095850][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.096552][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.097259][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.097955][ T5076] inet_sendmsg+0x154/0x284 [ 76.098633][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.099284][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.099966][ T5076] invoke_syscall+0x98/0x2b8 [ 76.100656][ T5076] el0_svc_common+0x138/0x258 [ 76.101317][ T5076] do_el0_svc+0x58/0x14c [ 76.101937][ T5076] el0_svc+0x78/0x1e0 [ 76.102470][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.103142][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.104154][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.106033][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.107108][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.108555][ T5076] Call trace: [ 76.109014][ T5076] dump_backtrace+0x0/0x43c [ 76.109652][ T5076] show_stack+0x2c/0x3c [ 76.110193][ T5076] __dump_stack+0x30/0x40 [ 76.110779][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.111406][ T5076] dump_stack+0x1c/0x5c [ 76.111993][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.112739][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.113414][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.114123][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.114747][ T5076] inet_sendmsg+0x154/0x284 [ 76.115398][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.116057][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.116760][ T5076] invoke_syscall+0x98/0x2b8 [ 76.117396][ T5076] el0_svc_common+0x138/0x258 [ 76.118078][ T5076] do_el0_svc+0x58/0x14c [ 76.118653][ T5076] el0_svc+0x78/0x1e0 [ 76.119224][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.119992][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.121677][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.123284][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.124344][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.125783][ T5076] Call trace: [ 76.126261][ T5076] dump_backtrace+0x0/0x43c [ 76.126893][ T5076] show_stack+0x2c/0x3c [ 76.127484][ T5076] __dump_stack+0x30/0x40 [ 76.128092][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.128740][ T5076] dump_stack+0x1c/0x5c [ 76.129334][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.130206][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.130866][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.131589][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.132231][ T5076] inet_sendmsg+0x154/0x284 [ 76.132895][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.133514][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.134238][ T5076] invoke_syscall+0x98/0x2b8 [ 76.134858][ T5076] el0_svc_common+0x138/0x258 [ 76.135506][ T5076] do_el0_svc+0x58/0x14c [ 76.136060][ T5076] el0_svc+0x78/0x1e0 [ 76.136604][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.137387][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.138367][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.140077][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.141186][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.142677][ T5076] Call trace: [ 76.143143][ T5076] dump_backtrace+0x0/0x43c [ 76.143787][ T5076] show_stack+0x2c/0x3c [ 76.144389][ T5076] __dump_stack+0x30/0x40 [ 76.145026][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.145683][ T5076] dump_stack+0x1c/0x5c [ 76.146271][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.147078][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.147781][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.148483][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.149039][ T5076] inet_sendmsg+0x154/0x284 [ 76.149725][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.150377][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.151053][ T5076] invoke_syscall+0x98/0x2b8 [ 76.151734][ T5076] el0_svc_common+0x138/0x258 [ 76.152407][ T5076] do_el0_svc+0x58/0x14c [ 76.153070][ T5076] el0_svc+0x78/0x1e0 [ 76.153619][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.154355][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.155285][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.156870][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.157805][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.159142][ T5076] Call trace: [ 76.159553][ T5076] dump_backtrace+0x0/0x43c [ 76.160157][ T5076] show_stack+0x2c/0x3c [ 76.160707][ T5076] __dump_stack+0x30/0x40 [ 76.161308][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.161981][ T5076] dump_stack+0x1c/0x5c [ 76.162551][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.163329][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.164018][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.164768][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.165464][ T5076] inet_sendmsg+0x154/0x284 [ 76.166188][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.166839][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.167559][ T5076] invoke_syscall+0x98/0x2b8 [ 76.168230][ T5076] el0_svc_common+0x138/0x258 [ 76.168892][ T5076] do_el0_svc+0x58/0x14c [ 76.169585][ T5076] el0_svc+0x78/0x1e0 [ 76.170221][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.171030][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.172075][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.173652][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.174672][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.176219][ T5076] Call trace: [ 76.176687][ T5076] dump_backtrace+0x0/0x43c [ 76.177324][ T5076] show_stack+0x2c/0x3c [ 76.177939][ T5076] __dump_stack+0x30/0x40 [ 76.178514][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.179150][ T5076] dump_stack+0x1c/0x5c [ 76.179716][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.180433][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.181037][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.181675][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.182275][ T5076] inet_sendmsg+0x154/0x284 [ 76.182915][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.183573][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.184253][ T5076] invoke_syscall+0x98/0x2b8 [ 76.184889][ T5076] el0_svc_common+0x138/0x258 [ 76.185516][ T5076] do_el0_svc+0x58/0x14c [ 76.186150][ T5076] el0_svc+0x78/0x1e0 [ 76.186731][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.187506][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.188471][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.190004][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.191052][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.192462][ T5076] Call trace: [ 76.192930][ T5076] dump_backtrace+0x0/0x43c [ 76.193591][ T5076] show_stack+0x2c/0x3c [ 76.194187][ T5076] __dump_stack+0x30/0x40 [ 76.194797][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.195441][ T5076] dump_stack+0x1c/0x5c [ 76.196064][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.196830][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.197561][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.198213][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.198844][ T5076] inet_sendmsg+0x154/0x284 [ 76.199502][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.200120][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.200798][ T5076] invoke_syscall+0x98/0x2b8 [ 76.201484][ T5076] el0_svc_common+0x138/0x258 [ 76.202107][ T5076] do_el0_svc+0x58/0x14c [ 76.202655][ T5076] el0_svc+0x78/0x1e0 [ 76.203191][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.203910][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.204761][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.206287][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.207253][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.208647][ T5076] Call trace: [ 76.209119][ T5076] dump_backtrace+0x0/0x43c [ 76.209782][ T5076] show_stack+0x2c/0x3c [ 76.210375][ T5076] __dump_stack+0x30/0x40 [ 76.211002][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.211644][ T5076] dump_stack+0x1c/0x5c [ 76.212231][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.213006][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.213695][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.214387][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.215053][ T5076] inet_sendmsg+0x154/0x284 [ 76.215725][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.216324][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.216983][ T5076] invoke_syscall+0x98/0x2b8 [ 76.217639][ T5076] el0_svc_common+0x138/0x258 [ 76.218305][ T5076] do_el0_svc+0x58/0x14c [ 76.218919][ T5076] el0_svc+0x78/0x1e0 [ 76.219464][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.220247][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.221126][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.222578][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.223529][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.224914][ T5076] Call trace: [ 76.225360][ T5076] dump_backtrace+0x0/0x43c [ 76.225977][ T5076] show_stack+0x2c/0x3c [ 76.226546][ T5076] __dump_stack+0x30/0x40 [ 76.227235][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.227900][ T5076] dump_stack+0x1c/0x5c [ 76.228525][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.229326][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.230056][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.230804][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.231442][ T5076] inet_sendmsg+0x154/0x284 [ 76.232086][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.232743][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.233468][ T5076] invoke_syscall+0x98/0x2b8 [ 76.234109][ T5076] el0_svc_common+0x138/0x258 [ 76.234825][ T5076] do_el0_svc+0x58/0x14c [ 76.235442][ T5076] el0_svc+0x78/0x1e0 [ 76.236010][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.236701][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.237849][ T5076] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.239425][ T5076] CPU: 0 PID: 5076 Comm: syz.0.18 Not tainted syzkaller #0 [ 76.240509][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.241838][ T5076] Call trace: [ 76.242246][ T5076] dump_backtrace+0x0/0x43c [ 76.242824][ T5076] show_stack+0x2c/0x3c [ 76.243407][ T5076] __dump_stack+0x30/0x40 [ 76.244040][ T5076] dump_stack_lvl+0xf8/0x160 [ 76.244753][ T5076] dump_stack+0x1c/0x5c [ 76.245337][ T5076] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.246082][ T5076] dccp_xmit_packet+0x298/0x448 [ 76.246745][ T5076] dccp_write_xmit+0x118/0x1d0 [ 76.247392][ T5076] dccp_sendmsg+0x538/0x8a8 [ 76.248014][ T5076] inet_sendmsg+0x154/0x284 [ 76.248629][ T5076] __sys_sendto+0x2e8/0x3d8 [ 76.249289][ T5076] __arm64_sys_sendto+0xd8/0xf8 [ 76.249997][ T5076] invoke_syscall+0x98/0x2b8 [ 76.250678][ T5076] el0_svc_common+0x138/0x258 [ 76.251335][ T5076] do_el0_svc+0x58/0x14c [ 76.251897][ T5076] el0_svc+0x78/0x1e0 [ 76.252460][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 76.253197][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 76.271864][ T5078] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.280300][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.281949][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.282956][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.284433][ T5078] Call trace: [ 76.284891][ T5078] dump_backtrace+0x0/0x43c [ 76.285560][ T5078] show_stack+0x2c/0x3c [ 76.286189][ T5078] __dump_stack+0x30/0x40 [ 76.286822][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.287482][ T5078] dump_stack+0x1c/0x5c [ 76.288084][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.288856][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.289542][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.290217][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.290849][ T5078] inet_sendmsg+0x154/0x284 [ 76.291502][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.292220][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.292971][ T5078] invoke_syscall+0x98/0x2b8 [ 76.293637][ T5078] el0_svc_common+0x138/0x258 [ 76.294316][ T5078] do_el0_svc+0x58/0x14c [ 76.294924][ T5078] el0_svc+0x78/0x1e0 [ 76.295444][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.296123][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.297521][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.299065][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.300100][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.301514][ T5078] Call trace: [ 76.301953][ T5078] dump_backtrace+0x0/0x43c [ 76.302548][ T5078] show_stack+0x2c/0x3c [ 76.303111][ T5078] __dump_stack+0x30/0x40 [ 76.303810][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.304522][ T5078] dump_stack+0x1c/0x5c [ 76.305138][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.305971][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.306731][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.307442][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.308080][ T5078] inet_sendmsg+0x154/0x284 [ 76.308707][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.309356][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.310049][ T5078] invoke_syscall+0x98/0x2b8 [ 76.310747][ T5078] el0_svc_common+0x138/0x258 [ 76.311401][ T5078] do_el0_svc+0x58/0x14c [ 76.312068][ T5078] el0_svc+0x78/0x1e0 [ 76.312628][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.313361][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.315445][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.317220][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.318242][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.319690][ T5078] Call trace: [ 76.320153][ T5078] dump_backtrace+0x0/0x43c [ 76.320795][ T5078] show_stack+0x2c/0x3c [ 76.321350][ T5078] __dump_stack+0x30/0x40 [ 76.321944][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.322560][ T5078] dump_stack+0x1c/0x5c [ 76.323118][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.323934][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.324618][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.325311][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.325952][ T5078] inet_sendmsg+0x154/0x284 [ 76.326591][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.327247][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.327989][ T5078] invoke_syscall+0x98/0x2b8 [ 76.328630][ T5078] el0_svc_common+0x138/0x258 [ 76.329370][ T5078] do_el0_svc+0x58/0x14c [ 76.329969][ T5078] el0_svc+0x78/0x1e0 [ 76.330540][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.331248][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.332569][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.334399][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.335514][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.337103][ T5078] Call trace: [ 76.337569][ T5078] dump_backtrace+0x0/0x43c [ 76.338235][ T5078] show_stack+0x2c/0x3c [ 76.338820][ T5078] __dump_stack+0x30/0x40 [ 76.339512][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.340123][ T5078] dump_stack+0x1c/0x5c [ 76.340697][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.341415][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.342056][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.342729][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.343356][ T5078] inet_sendmsg+0x154/0x284 [ 76.343975][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.344620][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.345248][ T5078] invoke_syscall+0x98/0x2b8 [ 76.345879][ T5078] el0_svc_common+0x138/0x258 [ 76.346477][ T5078] do_el0_svc+0x58/0x14c [ 76.347052][ T5078] el0_svc+0x78/0x1e0 [ 76.347588][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.348376][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.349799][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.351341][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.352353][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.353665][ T5078] Call trace: [ 76.354095][ T5078] dump_backtrace+0x0/0x43c [ 76.354736][ T5078] show_stack+0x2c/0x3c [ 76.355400][ T5078] __dump_stack+0x30/0x40 [ 76.356022][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.356697][ T5078] dump_stack+0x1c/0x5c [ 76.357320][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.358093][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.358848][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.359497][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.360198][ T5078] inet_sendmsg+0x154/0x284 [ 76.360863][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.361482][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.362181][ T5078] invoke_syscall+0x98/0x2b8 [ 76.362823][ T5078] el0_svc_common+0x138/0x258 [ 76.363518][ T5078] do_el0_svc+0x58/0x14c [ 76.364216][ T5078] el0_svc+0x78/0x1e0 [ 76.364797][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.365565][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.366549][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.368058][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.369104][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.370479][ T5078] Call trace: [ 76.370939][ T5078] dump_backtrace+0x0/0x43c [ 76.371599][ T5078] show_stack+0x2c/0x3c [ 76.372192][ T5078] __dump_stack+0x30/0x40 [ 76.372780][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.373412][ T5078] dump_stack+0x1c/0x5c [ 76.374041][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.374846][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.375557][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.376243][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.376944][ T5078] inet_sendmsg+0x154/0x284 [ 76.377590][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.378214][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.378927][ T5078] invoke_syscall+0x98/0x2b8 [ 76.379582][ T5078] el0_svc_common+0x138/0x258 [ 76.380228][ T5078] do_el0_svc+0x58/0x14c [ 76.380876][ T5078] el0_svc+0x78/0x1e0 [ 76.381473][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.382134][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.383054][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.384703][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.385697][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.387112][ T5078] Call trace: [ 76.387563][ T5078] dump_backtrace+0x0/0x43c [ 76.388163][ T5078] show_stack+0x2c/0x3c [ 76.388837][ T5078] __dump_stack+0x30/0x40 [ 76.389447][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.390099][ T5078] dump_stack+0x1c/0x5c [ 76.390764][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.391563][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.392311][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.393016][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.393708][ T5078] inet_sendmsg+0x154/0x284 [ 76.394279][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.394880][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.395578][ T5078] invoke_syscall+0x98/0x2b8 [ 76.396168][ T5078] el0_svc_common+0x138/0x258 [ 76.396839][ T5078] do_el0_svc+0x58/0x14c [ 76.397402][ T5078] el0_svc+0x78/0x1e0 [ 76.397941][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.398633][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.399406][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.400894][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.401898][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.403257][ T5078] Call trace: [ 76.403681][ T5078] dump_backtrace+0x0/0x43c [ 76.404287][ T5078] show_stack+0x2c/0x3c [ 76.404866][ T5078] __dump_stack+0x30/0x40 [ 76.405450][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.406108][ T5078] dump_stack+0x1c/0x5c [ 76.406704][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.407450][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.408234][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.408879][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.409567][ T5078] inet_sendmsg+0x154/0x284 [ 76.410219][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.410837][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.411516][ T5078] invoke_syscall+0x98/0x2b8 [ 76.412167][ T5078] el0_svc_common+0x138/0x258 [ 76.412862][ T5078] do_el0_svc+0x58/0x14c [ 76.413468][ T5078] el0_svc+0x78/0x1e0 [ 76.414038][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.414753][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.415663][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.417408][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.418496][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.419916][ T5078] Call trace: [ 76.420395][ T5078] dump_backtrace+0x0/0x43c [ 76.421087][ T5078] show_stack+0x2c/0x3c [ 76.421665][ T5078] __dump_stack+0x30/0x40 [ 76.422281][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.422894][ T5078] dump_stack+0x1c/0x5c [ 76.423480][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.424251][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.424957][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.425618][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.426261][ T5078] inet_sendmsg+0x154/0x284 [ 76.426902][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.427524][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.428161][ T5078] invoke_syscall+0x98/0x2b8 [ 76.428802][ T5078] el0_svc_common+0x138/0x258 [ 76.429481][ T5078] do_el0_svc+0x58/0x14c [ 76.430092][ T5078] el0_svc+0x78/0x1e0 [ 76.430650][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.431352][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.432788][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.434452][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.435497][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.436846][ T5078] Call trace: [ 76.437281][ T5078] dump_backtrace+0x0/0x43c [ 76.437869][ T5078] show_stack+0x2c/0x3c [ 76.438476][ T5078] __dump_stack+0x30/0x40 [ 76.439159][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.439854][ T5078] dump_stack+0x1c/0x5c [ 76.440413][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.441180][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.441848][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.442466][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.443192][ T5078] inet_sendmsg+0x154/0x284 [ 76.443923][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.444562][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.445283][ T5078] invoke_syscall+0x98/0x2b8 [ 76.445973][ T5078] el0_svc_common+0x138/0x258 [ 76.446640][ T5078] do_el0_svc+0x58/0x14c [ 76.447243][ T5078] el0_svc+0x78/0x1e0 [ 76.447819][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.448549][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.450015][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.451540][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.452551][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.453814][ T5078] Call trace: [ 76.454248][ T5078] dump_backtrace+0x0/0x43c [ 76.454866][ T5078] show_stack+0x2c/0x3c [ 76.455399][ T5078] __dump_stack+0x30/0x40 [ 76.455963][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.456571][ T5078] dump_stack+0x1c/0x5c [ 76.457118][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.457885][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.458564][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.459201][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.459847][ T5078] inet_sendmsg+0x154/0x284 [ 76.460504][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.461181][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.461850][ T5078] invoke_syscall+0x98/0x2b8 [ 76.462487][ T5078] el0_svc_common+0x138/0x258 [ 76.463121][ T5078] do_el0_svc+0x58/0x14c [ 76.463723][ T5078] el0_svc+0x78/0x1e0 [ 76.464258][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.465009][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.466105][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.467545][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.468561][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.469976][ T5078] Call trace: [ 76.470456][ T5078] dump_backtrace+0x0/0x43c [ 76.471072][ T5078] show_stack+0x2c/0x3c [ 76.471632][ T5078] __dump_stack+0x30/0x40 [ 76.472223][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.472900][ T5078] dump_stack+0x1c/0x5c [ 76.473461][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.474205][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.474910][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.475605][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.476222][ T5078] inet_sendmsg+0x154/0x284 [ 76.476854][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.477494][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.478160][ T5078] invoke_syscall+0x98/0x2b8 [ 76.478794][ T5078] el0_svc_common+0x138/0x258 [ 76.479432][ T5078] do_el0_svc+0x58/0x14c [ 76.480019][ T5078] el0_svc+0x78/0x1e0 [ 76.480592][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.481297][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.482161][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.483666][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.484644][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.485993][ T5078] Call trace: [ 76.486490][ T5078] dump_backtrace+0x0/0x43c [ 76.487151][ T5078] show_stack+0x2c/0x3c [ 76.487768][ T5078] __dump_stack+0x30/0x40 [ 76.488376][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.489040][ T5078] dump_stack+0x1c/0x5c [ 76.489665][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.490451][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.491140][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.491871][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.492471][ T5078] inet_sendmsg+0x154/0x284 [ 76.493098][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.493741][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.494533][ T5078] invoke_syscall+0x98/0x2b8 [ 76.495175][ T5078] el0_svc_common+0x138/0x258 [ 76.495814][ T5078] do_el0_svc+0x58/0x14c [ 76.496436][ T5078] el0_svc+0x78/0x1e0 [ 76.496977][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.497679][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.498592][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.500092][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.501066][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.502432][ T5078] Call trace: [ 76.502896][ T5078] dump_backtrace+0x0/0x43c [ 76.503512][ T5078] show_stack+0x2c/0x3c [ 76.504096][ T5078] __dump_stack+0x30/0x40 [ 76.504726][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.505401][ T5078] dump_stack+0x1c/0x5c [ 76.506001][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.506776][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.507444][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.508135][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.508784][ T5078] inet_sendmsg+0x154/0x284 [ 76.509433][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.510036][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.510694][ T5078] invoke_syscall+0x98/0x2b8 [ 76.511361][ T5078] el0_svc_common+0x138/0x258 [ 76.512023][ T5078] do_el0_svc+0x58/0x14c [ 76.512661][ T5078] el0_svc+0x78/0x1e0 [ 76.513224][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.513908][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.514910][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.516412][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.517332][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.518627][ T5078] Call trace: [ 76.519056][ T5078] dump_backtrace+0x0/0x43c [ 76.519643][ T5078] show_stack+0x2c/0x3c [ 76.520180][ T5078] __dump_stack+0x30/0x40 [ 76.520868][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.521564][ T5078] dump_stack+0x1c/0x5c [ 76.522201][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.522985][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.523737][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.524433][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.525045][ T5078] inet_sendmsg+0x154/0x284 [ 76.525710][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.526325][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.527024][ T5078] invoke_syscall+0x98/0x2b8 [ 76.527697][ T5078] el0_svc_common+0x138/0x258 [ 76.528357][ T5078] do_el0_svc+0x58/0x14c [ 76.528960][ T5078] el0_svc+0x78/0x1e0 [ 76.529529][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.530233][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.531065][ T5078] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.532656][ T5078] CPU: 0 PID: 5078 Comm: syz.0.19 Not tainted syzkaller #0 [ 76.533695][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.535210][ T5078] Call trace: [ 76.535705][ T5078] dump_backtrace+0x0/0x43c [ 76.536400][ T5078] show_stack+0x2c/0x3c [ 76.537026][ T5078] __dump_stack+0x30/0x40 [ 76.537603][ T5078] dump_stack_lvl+0xf8/0x160 [ 76.538241][ T5078] dump_stack+0x1c/0x5c [ 76.538836][ T5078] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.539677][ T5078] dccp_xmit_packet+0x298/0x448 [ 76.540403][ T5078] dccp_write_xmit+0x118/0x1d0 [ 76.541093][ T5078] dccp_sendmsg+0x538/0x8a8 [ 76.541732][ T5078] inet_sendmsg+0x154/0x284 [ 76.542350][ T5078] __sys_sendto+0x2e8/0x3d8 [ 76.543045][ T5078] __arm64_sys_sendto+0xd8/0xf8 [ 76.543720][ T5078] invoke_syscall+0x98/0x2b8 [ 76.544329][ T5078] el0_svc_common+0x138/0x258 [ 76.544993][ T5078] do_el0_svc+0x58/0x14c [ 76.545589][ T5078] el0_svc+0x78/0x1e0 [ 76.546149][ T5078] el0t_64_sync_handler+0xcc/0xe4 [ 76.546833][ T5078] el0t_64_sync+0x1a0/0x1a4 [ 76.559146][ T5080] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.567376][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.569014][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.570095][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.571459][ T5080] Call trace: [ 76.571876][ T5080] dump_backtrace+0x0/0x43c [ 76.572547][ T5080] show_stack+0x2c/0x3c [ 76.573110][ T5080] __dump_stack+0x30/0x40 [ 76.573701][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.574357][ T5080] dump_stack+0x1c/0x5c [ 76.574914][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.575668][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.576343][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.577013][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.577686][ T5080] inet_sendmsg+0x154/0x284 [ 76.578297][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.578937][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.579653][ T5080] invoke_syscall+0x98/0x2b8 [ 76.580233][ T5080] el0_svc_common+0x138/0x258 [ 76.580866][ T5080] do_el0_svc+0x58/0x14c [ 76.581502][ T5080] el0_svc+0x78/0x1e0 [ 76.582066][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.582818][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.585105][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.586682][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.587656][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.589008][ T5080] Call trace: [ 76.589488][ T5080] dump_backtrace+0x0/0x43c [ 76.590106][ T5080] show_stack+0x2c/0x3c [ 76.590696][ T5080] __dump_stack+0x30/0x40 [ 76.591287][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.591918][ T5080] dump_stack+0x1c/0x5c [ 76.592504][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.593320][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.594045][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.594729][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.595423][ T5080] inet_sendmsg+0x154/0x284 [ 76.596068][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.596720][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.597435][ T5080] invoke_syscall+0x98/0x2b8 [ 76.598133][ T5080] el0_svc_common+0x138/0x258 [ 76.598850][ T5080] do_el0_svc+0x58/0x14c [ 76.599414][ T5080] el0_svc+0x78/0x1e0 [ 76.599961][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.600638][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.602987][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.604684][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.605765][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.607135][ T5080] Call trace: [ 76.607610][ T5080] dump_backtrace+0x0/0x43c [ 76.608289][ T5080] show_stack+0x2c/0x3c [ 76.608863][ T5080] __dump_stack+0x30/0x40 [ 76.609466][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.610074][ T5080] dump_stack+0x1c/0x5c [ 76.610627][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.611416][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.612101][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.612819][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.613456][ T5080] inet_sendmsg+0x154/0x284 [ 76.614079][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.614750][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.615394][ T5080] invoke_syscall+0x98/0x2b8 [ 76.616032][ T5080] el0_svc_common+0x138/0x258 [ 76.616702][ T5080] do_el0_svc+0x58/0x14c [ 76.617286][ T5080] el0_svc+0x78/0x1e0 [ 76.617788][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.618484][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.619933][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.621506][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.622505][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.623880][ T5080] Call trace: [ 76.624358][ T5080] dump_backtrace+0x0/0x43c [ 76.625025][ T5080] show_stack+0x2c/0x3c [ 76.625603][ T5080] __dump_stack+0x30/0x40 [ 76.626188][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.626860][ T5080] dump_stack+0x1c/0x5c [ 76.627491][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.628283][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.629006][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.629656][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.630301][ T5080] inet_sendmsg+0x154/0x284 [ 76.631009][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.631652][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.632352][ T5080] invoke_syscall+0x98/0x2b8 [ 76.633015][ T5080] el0_svc_common+0x138/0x258 [ 76.633674][ T5080] do_el0_svc+0x58/0x14c [ 76.634274][ T5080] el0_svc+0x78/0x1e0 [ 76.634777][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.635500][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.636764][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.638435][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.639410][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.640821][ T5080] Call trace: [ 76.641309][ T5080] dump_backtrace+0x0/0x43c [ 76.641911][ T5080] show_stack+0x2c/0x3c [ 76.642438][ T5080] __dump_stack+0x30/0x40 [ 76.643020][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.643663][ T5080] dump_stack+0x1c/0x5c [ 76.644273][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.645071][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.645771][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.646386][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.647051][ T5080] inet_sendmsg+0x154/0x284 [ 76.647700][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.648337][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.648990][ T5080] invoke_syscall+0x98/0x2b8 [ 76.649613][ T5080] el0_svc_common+0x138/0x258 [ 76.650274][ T5080] do_el0_svc+0x58/0x14c [ 76.650878][ T5080] el0_svc+0x78/0x1e0 [ 76.651419][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.652074][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.653327][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.655012][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.656067][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.657687][ T5080] Call trace: [ 76.658173][ T5080] dump_backtrace+0x0/0x43c [ 76.658828][ T5080] show_stack+0x2c/0x3c [ 76.659410][ T5080] __dump_stack+0x30/0x40 [ 76.660076][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.660770][ T5080] dump_stack+0x1c/0x5c [ 76.661366][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.662169][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.662830][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.663460][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.664076][ T5080] inet_sendmsg+0x154/0x284 [ 76.664712][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.665373][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.666063][ T5080] invoke_syscall+0x98/0x2b8 [ 76.666700][ T5080] el0_svc_common+0x138/0x258 [ 76.667383][ T5080] do_el0_svc+0x58/0x14c [ 76.667997][ T5080] el0_svc+0x78/0x1e0 [ 76.668558][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.669253][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.670341][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.672013][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.673082][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.674536][ T5080] Call trace: [ 76.674989][ T5080] dump_backtrace+0x0/0x43c [ 76.675613][ T5080] show_stack+0x2c/0x3c [ 76.676218][ T5080] __dump_stack+0x30/0x40 [ 76.676839][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.677476][ T5080] dump_stack+0x1c/0x5c [ 76.678023][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.678777][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.679430][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.680082][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.680697][ T5080] inet_sendmsg+0x154/0x284 [ 76.681293][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.681899][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.682532][ T5080] invoke_syscall+0x98/0x2b8 [ 76.683162][ T5080] el0_svc_common+0x138/0x258 [ 76.683804][ T5080] do_el0_svc+0x58/0x14c [ 76.684364][ T5080] el0_svc+0x78/0x1e0 [ 76.684914][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.685624][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.686433][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.687890][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.688916][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.690244][ T5080] Call trace: [ 76.690666][ T5080] dump_backtrace+0x0/0x43c [ 76.691256][ T5080] show_stack+0x2c/0x3c [ 76.691803][ T5080] __dump_stack+0x30/0x40 [ 76.692358][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.692968][ T5080] dump_stack+0x1c/0x5c [ 76.693529][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.694242][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.694921][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.695605][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.696232][ T5080] inet_sendmsg+0x154/0x284 [ 76.696873][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.697532][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.698194][ T5080] invoke_syscall+0x98/0x2b8 [ 76.698792][ T5080] el0_svc_common+0x138/0x258 [ 76.699448][ T5080] do_el0_svc+0x58/0x14c [ 76.700039][ T5080] el0_svc+0x78/0x1e0 [ 76.700623][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.701293][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.702145][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.703633][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.704620][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.705984][ T5080] Call trace: [ 76.706420][ T5080] dump_backtrace+0x0/0x43c [ 76.707076][ T5080] show_stack+0x2c/0x3c [ 76.707684][ T5080] __dump_stack+0x30/0x40 [ 76.708251][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.708923][ T5080] dump_stack+0x1c/0x5c [ 76.709542][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.710320][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.711005][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.711706][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.712346][ T5080] inet_sendmsg+0x154/0x284 [ 76.712992][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.713625][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.714261][ T5080] invoke_syscall+0x98/0x2b8 [ 76.714879][ T5080] el0_svc_common+0x138/0x258 [ 76.715510][ T5080] do_el0_svc+0x58/0x14c [ 76.716099][ T5080] el0_svc+0x78/0x1e0 [ 76.716643][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.717328][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.718157][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.719610][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.720523][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.721839][ T5080] Call trace: [ 76.722285][ T5080] dump_backtrace+0x0/0x43c [ 76.722918][ T5080] show_stack+0x2c/0x3c [ 76.723507][ T5080] __dump_stack+0x30/0x40 [ 76.724111][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.724772][ T5080] dump_stack+0x1c/0x5c [ 76.725370][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.726159][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.726873][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.727573][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.728234][ T5080] inet_sendmsg+0x154/0x284 [ 76.728871][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.729529][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.730239][ T5080] invoke_syscall+0x98/0x2b8 [ 76.730911][ T5080] el0_svc_common+0x138/0x258 [ 76.731611][ T5080] do_el0_svc+0x58/0x14c [ 76.732208][ T5080] el0_svc+0x78/0x1e0 [ 76.732741][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.733424][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.734468][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.735992][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.736954][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.738451][ T5080] Call trace: [ 76.738948][ T5080] dump_backtrace+0x0/0x43c [ 76.739592][ T5080] show_stack+0x2c/0x3c [ 76.740202][ T5080] __dump_stack+0x30/0x40 [ 76.740815][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.741507][ T5080] dump_stack+0x1c/0x5c [ 76.742116][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.742855][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.743597][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.744343][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.744997][ T5080] inet_sendmsg+0x154/0x284 [ 76.745611][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.746256][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.746944][ T5080] invoke_syscall+0x98/0x2b8 [ 76.747583][ T5080] el0_svc_common+0x138/0x258 [ 76.748173][ T5080] do_el0_svc+0x58/0x14c [ 76.748781][ T5080] el0_svc+0x78/0x1e0 [ 76.749384][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.750090][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.751722][ T5080] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.753377][ T5080] CPU: 0 PID: 5080 Comm: syz.0.20 Not tainted syzkaller #0 [ 76.754453][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.755992][ T5080] Call trace: [ 76.756488][ T5080] dump_backtrace+0x0/0x43c [ 76.757108][ T5080] show_stack+0x2c/0x3c [ 76.757684][ T5080] __dump_stack+0x30/0x40 [ 76.758289][ T5080] dump_stack_lvl+0xf8/0x160 [ 76.758979][ T5080] dump_stack+0x1c/0x5c [ 76.759629][ T5080] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.760425][ T5080] dccp_xmit_packet+0x298/0x448 [ 76.761104][ T5080] dccp_write_xmit+0x118/0x1d0 [ 76.761779][ T5080] dccp_sendmsg+0x538/0x8a8 [ 76.762437][ T5080] inet_sendmsg+0x154/0x284 [ 76.763001][ T5080] __sys_sendto+0x2e8/0x3d8 [ 76.763627][ T5080] __arm64_sys_sendto+0xd8/0xf8 [ 76.764326][ T5080] invoke_syscall+0x98/0x2b8 [ 76.764908][ T5080] el0_svc_common+0x138/0x258 [ 76.765602][ T5080] do_el0_svc+0x58/0x14c [ 76.766185][ T5080] el0_svc+0x78/0x1e0 [ 76.766774][ T5080] el0t_64_sync_handler+0xcc/0xe4 [ 76.767492][ T5080] el0t_64_sync+0x1a0/0x1a4 [ 76.783616][ T5082] dccp_xmit_packet: Payload too large (65475) for featneg. [ 76.791694][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.793268][ T5082] CPU: 1 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.794286][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.795697][ T5082] Call trace: [ 76.796192][ T5082] dump_backtrace+0x0/0x43c [ 76.796816][ T5082] show_stack+0x2c/0x3c [ 76.797431][ T5082] __dump_stack+0x30/0x40 [ 76.798033][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.798690][ T5082] dump_stack+0x1c/0x5c [ 76.799392][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.800239][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.801000][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.801820][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.802547][ T5082] inet_sendmsg+0x154/0x284 [ 76.803293][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.803966][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.804724][ T5082] invoke_syscall+0x98/0x2b8 [ 76.805393][ T5082] el0_svc_common+0x138/0x258 [ 76.806169][ T5082] do_el0_svc+0x58/0x14c [ 76.806908][ T5082] el0_svc+0x78/0x1e0 [ 76.807539][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.808287][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.810304][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.811824][ T5082] CPU: 1 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.812847][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.814320][ T5082] Call trace: [ 76.814753][ T5082] dump_backtrace+0x0/0x43c [ 76.815403][ T5082] show_stack+0x2c/0x3c [ 76.815950][ T5082] __dump_stack+0x30/0x40 [ 76.816563][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.817184][ T5082] dump_stack+0x1c/0x5c [ 76.817786][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.818518][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.819184][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.819885][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.820627][ T5082] inet_sendmsg+0x154/0x284 [ 76.821304][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.821905][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.822597][ T5082] invoke_syscall+0x98/0x2b8 [ 76.823246][ T5082] el0_svc_common+0x138/0x258 [ 76.823885][ T5082] do_el0_svc+0x58/0x14c [ 76.824521][ T5082] el0_svc+0x78/0x1e0 [ 76.825050][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.825736][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.827919][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.829721][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.830851][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.832420][ T5082] Call trace: [ 76.832877][ T5082] dump_backtrace+0x0/0x43c [ 76.833557][ T5082] show_stack+0x2c/0x3c [ 76.834146][ T5082] __dump_stack+0x30/0x40 [ 76.834815][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.835564][ T5082] dump_stack+0x1c/0x5c [ 76.836212][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.837058][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.837837][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.838642][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.839421][ T5082] inet_sendmsg+0x154/0x284 [ 76.840141][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.840843][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.841673][ T5082] invoke_syscall+0x98/0x2b8 [ 76.842398][ T5082] el0_svc_common+0x138/0x258 [ 76.843094][ T5082] do_el0_svc+0x58/0x14c [ 76.843743][ T5082] el0_svc+0x78/0x1e0 [ 76.844301][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.845027][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.847115][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.848739][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.849692][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.851027][ T5082] Call trace: [ 76.851488][ T5082] dump_backtrace+0x0/0x43c [ 76.852109][ T5082] show_stack+0x2c/0x3c [ 76.852680][ T5082] __dump_stack+0x30/0x40 [ 76.853251][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.853940][ T5082] dump_stack+0x1c/0x5c [ 76.854549][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.855310][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.856035][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.856771][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.857434][ T5082] inet_sendmsg+0x154/0x284 [ 76.858073][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.858760][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.859476][ T5082] invoke_syscall+0x98/0x2b8 [ 76.860150][ T5082] el0_svc_common+0x138/0x258 [ 76.860848][ T5082] do_el0_svc+0x58/0x14c [ 76.861460][ T5082] el0_svc+0x78/0x1e0 [ 76.862051][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.862727][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.863837][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.865463][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.866421][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.867843][ T5082] Call trace: [ 76.868276][ T5082] dump_backtrace+0x0/0x43c [ 76.868898][ T5082] show_stack+0x2c/0x3c [ 76.869458][ T5082] __dump_stack+0x30/0x40 [ 76.870042][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.870685][ T5082] dump_stack+0x1c/0x5c [ 76.871278][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.871992][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.872670][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.873332][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.873899][ T5082] inet_sendmsg+0x154/0x284 [ 76.874561][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.875172][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.875847][ T5082] invoke_syscall+0x98/0x2b8 [ 76.876502][ T5082] el0_svc_common+0x138/0x258 [ 76.877147][ T5082] do_el0_svc+0x58/0x14c [ 76.877750][ T5082] el0_svc+0x78/0x1e0 [ 76.878287][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.879030][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.880075][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.881747][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.882831][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.884389][ T5082] Call trace: [ 76.884876][ T5082] dump_backtrace+0x0/0x43c [ 76.885545][ T5082] show_stack+0x2c/0x3c [ 76.886202][ T5082] __dump_stack+0x30/0x40 [ 76.886883][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.887568][ T5082] dump_stack+0x1c/0x5c [ 76.888244][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.889065][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.889752][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.890420][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.891075][ T5082] inet_sendmsg+0x154/0x284 [ 76.891744][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.892418][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.893148][ T5082] invoke_syscall+0x98/0x2b8 [ 76.893804][ T5082] el0_svc_common+0x138/0x258 [ 76.894463][ T5082] do_el0_svc+0x58/0x14c [ 76.895061][ T5082] el0_svc+0x78/0x1e0 [ 76.895632][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.896375][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.897246][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.898657][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.899637][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.900952][ T5082] Call trace: [ 76.901463][ T5082] dump_backtrace+0x0/0x43c [ 76.902050][ T5082] show_stack+0x2c/0x3c [ 76.902652][ T5082] __dump_stack+0x30/0x40 [ 76.903257][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.903856][ T5082] dump_stack+0x1c/0x5c [ 76.904464][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.905282][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.905980][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.906685][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.907337][ T5082] inet_sendmsg+0x154/0x284 [ 76.907990][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.908633][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.909308][ T5082] invoke_syscall+0x98/0x2b8 [ 76.909963][ T5082] el0_svc_common+0x138/0x258 [ 76.910622][ T5082] do_el0_svc+0x58/0x14c [ 76.911271][ T5082] el0_svc+0x78/0x1e0 [ 76.911870][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.912641][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.915511][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.917210][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.918193][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.919526][ T5082] Call trace: [ 76.919965][ T5082] dump_backtrace+0x0/0x43c [ 76.920602][ T5082] show_stack+0x2c/0x3c [ 76.921172][ T5082] __dump_stack+0x30/0x40 [ 76.921779][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.922402][ T5082] dump_stack+0x1c/0x5c [ 76.922940][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.923662][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.924324][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.924998][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.925638][ T5082] inet_sendmsg+0x154/0x284 [ 76.926327][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.926949][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.927640][ T5082] invoke_syscall+0x98/0x2b8 [ 76.928436][ T5082] el0_svc_common+0x138/0x258 [ 76.929236][ T5082] do_el0_svc+0x58/0x14c [ 76.929902][ T5082] el0_svc+0x78/0x1e0 [ 76.930563][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.931309][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.932331][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.933940][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.935055][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.936448][ T5082] Call trace: [ 76.936922][ T5082] dump_backtrace+0x0/0x43c [ 76.937524][ T5082] show_stack+0x2c/0x3c [ 76.938102][ T5082] __dump_stack+0x30/0x40 [ 76.938746][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.939383][ T5082] dump_stack+0x1c/0x5c [ 76.939990][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.940754][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.941430][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.942170][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.942805][ T5082] inet_sendmsg+0x154/0x284 [ 76.943445][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.944185][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.944911][ T5082] invoke_syscall+0x98/0x2b8 [ 76.945591][ T5082] el0_svc_common+0x138/0x258 [ 76.946264][ T5082] do_el0_svc+0x58/0x14c [ 76.946876][ T5082] el0_svc+0x78/0x1e0 [ 76.947435][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.948135][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.949027][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.950581][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.951587][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.952991][ T5082] Call trace: [ 76.953425][ T5082] dump_backtrace+0x0/0x43c [ 76.954051][ T5082] show_stack+0x2c/0x3c [ 76.954652][ T5082] __dump_stack+0x30/0x40 [ 76.955240][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.955944][ T5082] dump_stack+0x1c/0x5c [ 76.956535][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.957365][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.958052][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.958719][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.959358][ T5082] inet_sendmsg+0x154/0x284 [ 76.959996][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.960753][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.961446][ T5082] invoke_syscall+0x98/0x2b8 [ 76.962066][ T5082] el0_svc_common+0x138/0x258 [ 76.962770][ T5082] do_el0_svc+0x58/0x14c [ 76.963382][ T5082] el0_svc+0x78/0x1e0 [ 76.963935][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.964675][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.965613][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.967168][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.968227][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.969564][ T5082] Call trace: [ 76.970021][ T5082] dump_backtrace+0x0/0x43c [ 76.970627][ T5082] show_stack+0x2c/0x3c [ 76.971215][ T5082] __dump_stack+0x30/0x40 [ 76.971827][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.972457][ T5082] dump_stack+0x1c/0x5c [ 76.973051][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.973848][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.974559][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.975309][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.975955][ T5082] inet_sendmsg+0x154/0x284 [ 76.976630][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.977231][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.977939][ T5082] invoke_syscall+0x98/0x2b8 [ 76.978593][ T5082] el0_svc_common+0x138/0x258 [ 76.979222][ T5082] do_el0_svc+0x58/0x14c [ 76.979842][ T5082] el0_svc+0x78/0x1e0 [ 76.980427][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.981123][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 76.981998][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 76.983548][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 76.984511][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.985956][ T5082] Call trace: [ 76.986478][ T5082] dump_backtrace+0x0/0x43c [ 76.987167][ T5082] show_stack+0x2c/0x3c [ 76.987769][ T5082] __dump_stack+0x30/0x40 [ 76.988407][ T5082] dump_stack_lvl+0xf8/0x160 [ 76.989021][ T5082] dump_stack+0x1c/0x5c [ 76.989624][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 76.990387][ T5082] dccp_xmit_packet+0x298/0x448 [ 76.991083][ T5082] dccp_write_xmit+0x118/0x1d0 [ 76.991775][ T5082] dccp_sendmsg+0x538/0x8a8 [ 76.992398][ T5082] inet_sendmsg+0x154/0x284 [ 76.993031][ T5082] __sys_sendto+0x2e8/0x3d8 [ 76.993705][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 76.994379][ T5082] invoke_syscall+0x98/0x2b8 [ 76.995097][ T5082] el0_svc_common+0x138/0x258 [ 76.995806][ T5082] do_el0_svc+0x58/0x14c [ 76.996437][ T5082] el0_svc+0x78/0x1e0 [ 76.996971][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 76.997654][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 77.000631][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.002386][ T5082] CPU: 1 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.003459][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.004972][ T5082] Call trace: [ 77.005424][ T5082] dump_backtrace+0x0/0x43c [ 77.006085][ T5082] show_stack+0x2c/0x3c [ 77.006684][ T5082] __dump_stack+0x30/0x40 [ 77.007279][ T5082] dump_stack_lvl+0xf8/0x160 [ 77.007905][ T5082] dump_stack+0x1c/0x5c [ 77.008507][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.009298][ T5082] dccp_xmit_packet+0x298/0x448 [ 77.009969][ T5082] dccp_write_xmit+0x118/0x1d0 [ 77.010628][ T5082] dccp_sendmsg+0x538/0x8a8 [ 77.011246][ T5082] inet_sendmsg+0x154/0x284 [ 77.011897][ T5082] __sys_sendto+0x2e8/0x3d8 [ 77.012524][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 77.013200][ T5082] invoke_syscall+0x98/0x2b8 [ 77.013930][ T5082] el0_svc_common+0x138/0x258 [ 77.014667][ T5082] do_el0_svc+0x58/0x14c [ 77.015267][ T5082] el0_svc+0x78/0x1e0 [ 77.015854][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 77.016547][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 77.019954][ T5082] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.021591][ T5082] CPU: 0 PID: 5082 Comm: syz.0.21 Not tainted syzkaller #0 [ 77.022593][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.024097][ T5082] Call trace: [ 77.024585][ T5082] dump_backtrace+0x0/0x43c [ 77.025246][ T5082] show_stack+0x2c/0x3c [ 77.025834][ T5082] __dump_stack+0x30/0x40 [ 77.026461][ T5082] dump_stack_lvl+0xf8/0x160 [ 77.027114][ T5082] dump_stack+0x1c/0x5c [ 77.027676][ T5082] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.028405][ T5082] dccp_xmit_packet+0x298/0x448 [ 77.029092][ T5082] dccp_write_xmit+0x118/0x1d0 [ 77.029753][ T5082] dccp_sendmsg+0x538/0x8a8 [ 77.030391][ T5082] inet_sendmsg+0x154/0x284 [ 77.031021][ T5082] __sys_sendto+0x2e8/0x3d8 [ 77.031692][ T5082] __arm64_sys_sendto+0xd8/0xf8 [ 77.032376][ T5082] invoke_syscall+0x98/0x2b8 [ 77.033052][ T5082] el0_svc_common+0x138/0x258 [ 77.033721][ T5082] do_el0_svc+0x58/0x14c [ 77.034338][ T5082] el0_svc+0x78/0x1e0 [ 77.034903][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 77.035643][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 77.049246][ T5084] dccp_xmit_packet: Payload too large (65475) for featneg. [ 77.058402][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.060028][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.061036][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.062441][ T5084] Call trace: [ 77.062872][ T5084] dump_backtrace+0x0/0x43c [ 77.063512][ T5084] show_stack+0x2c/0x3c [ 77.064063][ T5084] __dump_stack+0x30/0x40 [ 77.064704][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.065374][ T5084] dump_stack+0x1c/0x5c [ 77.065979][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.066739][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.067461][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.068148][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.068781][ T5084] inet_sendmsg+0x154/0x284 [ 77.069481][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.070113][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.070874][ T5084] invoke_syscall+0x98/0x2b8 [ 77.071576][ T5084] el0_svc_common+0x138/0x258 [ 77.072158][ T5084] do_el0_svc+0x58/0x14c [ 77.072715][ T5084] el0_svc+0x78/0x1e0 [ 77.073238][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.073948][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.076281][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.077939][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.079044][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.080552][ T5084] Call trace: [ 77.081029][ T5084] dump_backtrace+0x0/0x43c [ 77.081721][ T5084] show_stack+0x2c/0x3c [ 77.082338][ T5084] __dump_stack+0x30/0x40 [ 77.082974][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.083688][ T5084] dump_stack+0x1c/0x5c [ 77.084313][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.085135][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.085800][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.086437][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.087119][ T5084] inet_sendmsg+0x154/0x284 [ 77.087741][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.088421][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.089162][ T5084] invoke_syscall+0x98/0x2b8 [ 77.089854][ T5084] el0_svc_common+0x138/0x258 [ 77.090528][ T5084] do_el0_svc+0x58/0x14c [ 77.091126][ T5084] el0_svc+0x78/0x1e0 [ 77.091703][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.092378][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.093338][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.095119][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.096161][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.097567][ T5084] Call trace: [ 77.098056][ T5084] dump_backtrace+0x0/0x43c [ 77.098683][ T5084] show_stack+0x2c/0x3c [ 77.099247][ T5084] __dump_stack+0x30/0x40 [ 77.099824][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.100447][ T5084] dump_stack+0x1c/0x5c [ 77.101036][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.101759][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.102407][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.103073][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.103717][ T5084] inet_sendmsg+0x154/0x284 [ 77.104391][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.105041][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.105741][ T5084] invoke_syscall+0x98/0x2b8 [ 77.106440][ T5084] el0_svc_common+0x138/0x258 [ 77.107083][ T5084] do_el0_svc+0x58/0x14c [ 77.107681][ T5084] el0_svc+0x78/0x1e0 [ 77.108256][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.108935][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.109759][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.111304][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.112340][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.113703][ T5084] Call trace: [ 77.114145][ T5084] dump_backtrace+0x0/0x43c [ 77.114843][ T5084] show_stack+0x2c/0x3c [ 77.115410][ T5084] __dump_stack+0x30/0x40 [ 77.115977][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.116592][ T5084] dump_stack+0x1c/0x5c [ 77.117140][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.117961][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.118790][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.119575][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.120298][ T5084] inet_sendmsg+0x154/0x284 [ 77.120995][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.121764][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.122475][ T5084] invoke_syscall+0x98/0x2b8 [ 77.123143][ T5084] el0_svc_common+0x138/0x258 [ 77.123833][ T5084] do_el0_svc+0x58/0x14c [ 77.124460][ T5084] el0_svc+0x78/0x1e0 [ 77.125057][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.125792][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.126962][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.128410][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.129471][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.130921][ T5084] Call trace: [ 77.131390][ T5084] dump_backtrace+0x0/0x43c [ 77.132034][ T5084] show_stack+0x2c/0x3c [ 77.132643][ T5084] __dump_stack+0x30/0x40 [ 77.133265][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.133949][ T5084] dump_stack+0x1c/0x5c [ 77.134548][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.135301][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.135967][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.136668][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.137270][ T5084] inet_sendmsg+0x154/0x284 [ 77.137897][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.138510][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.139129][ T5084] invoke_syscall+0x98/0x2b8 [ 77.139726][ T5084] el0_svc_common+0x138/0x258 [ 77.140327][ T5084] do_el0_svc+0x58/0x14c [ 77.140890][ T5084] el0_svc+0x78/0x1e0 [ 77.141415][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.142084][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.143075][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.145767][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.146863][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.148302][ T5084] Call trace: [ 77.148722][ T5084] dump_backtrace+0x0/0x43c [ 77.149328][ T5084] show_stack+0x2c/0x3c [ 77.149854][ T5084] __dump_stack+0x30/0x40 [ 77.150443][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.151073][ T5084] dump_stack+0x1c/0x5c [ 77.151738][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.152626][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.153315][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.153992][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.154684][ T5084] inet_sendmsg+0x154/0x284 [ 77.155353][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.155996][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.156650][ T5084] invoke_syscall+0x98/0x2b8 [ 77.157361][ T5084] el0_svc_common+0x138/0x258 [ 77.158034][ T5084] do_el0_svc+0x58/0x14c [ 77.158644][ T5084] el0_svc+0x78/0x1e0 [ 77.159196][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.159936][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.160813][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.162433][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.163421][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.164954][ T5084] Call trace: [ 77.165407][ T5084] dump_backtrace+0x0/0x43c [ 77.166065][ T5084] show_stack+0x2c/0x3c [ 77.166683][ T5084] __dump_stack+0x30/0x40 [ 77.167304][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.167953][ T5084] dump_stack+0x1c/0x5c [ 77.168513][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.169272][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.170013][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.170752][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.171371][ T5084] inet_sendmsg+0x154/0x284 [ 77.171999][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.172631][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.173315][ T5084] invoke_syscall+0x98/0x2b8 [ 77.173950][ T5084] el0_svc_common+0x138/0x258 [ 77.174578][ T5084] do_el0_svc+0x58/0x14c [ 77.175157][ T5084] el0_svc+0x78/0x1e0 [ 77.175689][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.176376][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.177232][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.178771][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.179782][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.181170][ T5084] Call trace: [ 77.181625][ T5084] dump_backtrace+0x0/0x43c [ 77.182226][ T5084] show_stack+0x2c/0x3c [ 77.182811][ T5084] __dump_stack+0x30/0x40 [ 77.183397][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.184036][ T5084] dump_stack+0x1c/0x5c [ 77.184628][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.185356][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.186046][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.186684][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.187329][ T5084] inet_sendmsg+0x154/0x284 [ 77.187967][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.188608][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.189252][ T5084] invoke_syscall+0x98/0x2b8 [ 77.189894][ T5084] el0_svc_common+0x138/0x258 [ 77.190577][ T5084] do_el0_svc+0x58/0x14c [ 77.191191][ T5084] el0_svc+0x78/0x1e0 [ 77.191764][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.192450][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.193409][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.195059][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.196008][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.197419][ T5084] Call trace: [ 77.197815][ T5084] dump_backtrace+0x0/0x43c [ 77.198410][ T5084] show_stack+0x2c/0x3c [ 77.198964][ T5084] __dump_stack+0x30/0x40 [ 77.199529][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.200148][ T5084] dump_stack+0x1c/0x5c [ 77.200684][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.201442][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.202137][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.202809][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.203461][ T5084] inet_sendmsg+0x154/0x284 [ 77.204106][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.204733][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.205424][ T5084] invoke_syscall+0x98/0x2b8 [ 77.206061][ T5084] el0_svc_common+0x138/0x258 [ 77.206714][ T5084] do_el0_svc+0x58/0x14c [ 77.207395][ T5084] el0_svc+0x78/0x1e0 [ 77.207970][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.208687][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.209541][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.211209][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.212410][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.214010][ T5084] Call trace: [ 77.214504][ T5084] dump_backtrace+0x0/0x43c [ 77.215159][ T5084] show_stack+0x2c/0x3c [ 77.215835][ T5084] __dump_stack+0x30/0x40 [ 77.216434][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.217083][ T5084] dump_stack+0x1c/0x5c [ 77.217700][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.218490][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.219158][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.219765][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.220380][ T5084] inet_sendmsg+0x154/0x284 [ 77.221021][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.221647][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.222309][ T5084] invoke_syscall+0x98/0x2b8 [ 77.222928][ T5084] el0_svc_common+0x138/0x258 [ 77.223545][ T5084] do_el0_svc+0x58/0x14c [ 77.224135][ T5084] el0_svc+0x78/0x1e0 [ 77.224655][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.225350][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.226641][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.228094][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.229104][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.230500][ T5084] Call trace: [ 77.230971][ T5084] dump_backtrace+0x0/0x43c [ 77.231572][ T5084] show_stack+0x2c/0x3c [ 77.232145][ T5084] __dump_stack+0x30/0x40 [ 77.232709][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.233319][ T5084] dump_stack+0x1c/0x5c [ 77.233877][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.234631][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.235286][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.235981][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.236642][ T5084] inet_sendmsg+0x154/0x284 [ 77.237326][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.237997][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.238763][ T5084] invoke_syscall+0x98/0x2b8 [ 77.239435][ T5084] el0_svc_common+0x138/0x258 [ 77.240071][ T5084] do_el0_svc+0x58/0x14c [ 77.240642][ T5084] el0_svc+0x78/0x1e0 [ 77.241181][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.241902][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.243322][ T5084] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.245079][ T5084] CPU: 1 PID: 5084 Comm: syz.0.22 Not tainted syzkaller #0 [ 77.246133][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.247604][ T5084] Call trace: [ 77.248068][ T5084] dump_backtrace+0x0/0x43c [ 77.248717][ T5084] show_stack+0x2c/0x3c [ 77.249402][ T5084] __dump_stack+0x30/0x40 [ 77.250074][ T5084] dump_stack_lvl+0xf8/0x160 [ 77.250764][ T5084] dump_stack+0x1c/0x5c [ 77.251401][ T5084] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.252231][ T5084] dccp_xmit_packet+0x298/0x448 [ 77.252936][ T5084] dccp_write_xmit+0x118/0x1d0 [ 77.253668][ T5084] dccp_sendmsg+0x538/0x8a8 [ 77.254316][ T5084] inet_sendmsg+0x154/0x284 [ 77.254996][ T5084] __sys_sendto+0x2e8/0x3d8 [ 77.255665][ T5084] __arm64_sys_sendto+0xd8/0xf8 [ 77.256413][ T5084] invoke_syscall+0x98/0x2b8 [ 77.257110][ T5084] el0_svc_common+0x138/0x258 [ 77.257839][ T5084] do_el0_svc+0x58/0x14c [ 77.258459][ T5084] el0_svc+0x78/0x1e0 [ 77.259040][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 77.259797][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 77.271371][ T5086] dccp_xmit_packet: Payload too large (65475) for featneg. [ 77.279252][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.281011][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.282064][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.283547][ T5086] Call trace: [ 77.283999][ T5086] dump_backtrace+0x0/0x43c [ 77.284654][ T5086] show_stack+0x2c/0x3c [ 77.285257][ T5086] __dump_stack+0x30/0x40 [ 77.285896][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.286572][ T5086] dump_stack+0x1c/0x5c [ 77.287153][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.287916][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.288590][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.289232][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.289850][ T5086] inet_sendmsg+0x154/0x284 [ 77.290486][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.291115][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.291805][ T5086] invoke_syscall+0x98/0x2b8 [ 77.292437][ T5086] el0_svc_common+0x138/0x258 [ 77.293090][ T5086] do_el0_svc+0x58/0x14c [ 77.293734][ T5086] el0_svc+0x78/0x1e0 [ 77.294289][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.295001][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.296563][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.298118][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.299091][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.300472][ T5086] Call trace: [ 77.300945][ T5086] dump_backtrace+0x0/0x43c [ 77.301569][ T5086] show_stack+0x2c/0x3c [ 77.302136][ T5086] __dump_stack+0x30/0x40 [ 77.302731][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.303421][ T5086] dump_stack+0x1c/0x5c [ 77.304073][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.304950][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.305682][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.306381][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.307046][ T5086] inet_sendmsg+0x154/0x284 [ 77.307789][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.308485][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.309313][ T5086] invoke_syscall+0x98/0x2b8 [ 77.310099][ T5086] el0_svc_common+0x138/0x258 [ 77.310873][ T5086] do_el0_svc+0x58/0x14c [ 77.311566][ T5086] el0_svc+0x78/0x1e0 [ 77.312222][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.313021][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.315081][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.316692][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.317700][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.319058][ T5086] Call trace: [ 77.319503][ T5086] dump_backtrace+0x0/0x43c [ 77.320180][ T5086] show_stack+0x2c/0x3c [ 77.320726][ T5086] __dump_stack+0x30/0x40 [ 77.321312][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.321951][ T5086] dump_stack+0x1c/0x5c [ 77.322510][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.323290][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.323984][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.324665][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.325275][ T5086] inet_sendmsg+0x154/0x284 [ 77.325838][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.326472][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.327106][ T5086] invoke_syscall+0x98/0x2b8 [ 77.327711][ T5086] el0_svc_common+0x138/0x258 [ 77.328333][ T5086] do_el0_svc+0x58/0x14c [ 77.328955][ T5086] el0_svc+0x78/0x1e0 [ 77.329492][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.330225][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.331523][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.332985][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.333976][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.335504][ T5086] Call trace: [ 77.336009][ T5086] dump_backtrace+0x0/0x43c [ 77.336605][ T5086] show_stack+0x2c/0x3c [ 77.337154][ T5086] __dump_stack+0x30/0x40 [ 77.337766][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.338383][ T5086] dump_stack+0x1c/0x5c [ 77.338987][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.339757][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.340414][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.341032][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.341633][ T5086] inet_sendmsg+0x154/0x284 [ 77.342262][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.342891][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.343559][ T5086] invoke_syscall+0x98/0x2b8 [ 77.344189][ T5086] el0_svc_common+0x138/0x258 [ 77.344861][ T5086] do_el0_svc+0x58/0x14c [ 77.345401][ T5086] el0_svc+0x78/0x1e0 [ 77.345936][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.346614][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.348263][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.349857][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.350874][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.352271][ T5086] Call trace: [ 77.352671][ T5086] dump_backtrace+0x0/0x43c [ 77.353369][ T5086] show_stack+0x2c/0x3c [ 77.353887][ T5086] __dump_stack+0x30/0x40 [ 77.354439][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.355061][ T5086] dump_stack+0x1c/0x5c [ 77.355657][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.356476][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.357169][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.357821][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.358446][ T5086] inet_sendmsg+0x154/0x284 [ 77.359092][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.359734][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.360469][ T5086] invoke_syscall+0x98/0x2b8 [ 77.361096][ T5086] el0_svc_common+0x138/0x258 [ 77.361733][ T5086] do_el0_svc+0x58/0x14c [ 77.362362][ T5086] el0_svc+0x78/0x1e0 [ 77.362904][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.363603][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.364468][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.366038][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.366987][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.368363][ T5086] Call trace: [ 77.368810][ T5086] dump_backtrace+0x0/0x43c [ 77.369491][ T5086] show_stack+0x2c/0x3c [ 77.370066][ T5086] __dump_stack+0x30/0x40 [ 77.370723][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.371357][ T5086] dump_stack+0x1c/0x5c [ 77.371955][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.372679][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.373324][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.373996][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.374630][ T5086] inet_sendmsg+0x154/0x284 [ 77.375240][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.375913][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.376629][ T5086] invoke_syscall+0x98/0x2b8 [ 77.377323][ T5086] el0_svc_common+0x138/0x258 [ 77.377954][ T5086] do_el0_svc+0x58/0x14c [ 77.378579][ T5086] el0_svc+0x78/0x1e0 [ 77.379140][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.379877][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.380767][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.382615][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.383735][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.385270][ T5086] Call trace: [ 77.385747][ T5086] dump_backtrace+0x0/0x43c [ 77.386431][ T5086] show_stack+0x2c/0x3c [ 77.387034][ T5086] __dump_stack+0x30/0x40 [ 77.387704][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.388331][ T5086] dump_stack+0x1c/0x5c [ 77.388934][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.389725][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.390367][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.391050][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.391773][ T5086] inet_sendmsg+0x154/0x284 [ 77.392421][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.393073][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.393749][ T5086] invoke_syscall+0x98/0x2b8 [ 77.394403][ T5086] el0_svc_common+0x138/0x258 [ 77.395054][ T5086] do_el0_svc+0x58/0x14c [ 77.395645][ T5086] el0_svc+0x78/0x1e0 [ 77.396196][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.396895][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.397991][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.399553][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.399583][ T380] device hsr_slave_0 left promiscuous mode [ 77.400506][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.402734][ T5086] Call trace: [ 77.403205][ T5086] dump_backtrace+0x0/0x43c [ 77.403835][ T5086] show_stack+0x2c/0x3c [ 77.404408][ T5086] __dump_stack+0x30/0x40 [ 77.405071][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.405753][ T5086] dump_stack+0x1c/0x5c [ 77.406315][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.407102][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.407825][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.408509][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.409108][ T5086] inet_sendmsg+0x154/0x284 [ 77.409741][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.410353][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.411011][ T5086] invoke_syscall+0x98/0x2b8 [ 77.411706][ T5086] el0_svc_common+0x138/0x258 [ 77.412365][ T5086] do_el0_svc+0x58/0x14c [ 77.412988][ T5086] el0_svc+0x78/0x1e0 [ 77.413558][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.414218][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.415319][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.417001][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.418187][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.419709][ T5086] Call trace: [ 77.420189][ T5086] dump_backtrace+0x0/0x43c [ 77.420816][ T5086] show_stack+0x2c/0x3c [ 77.421348][ T5086] __dump_stack+0x30/0x40 [ 77.421910][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.422503][ T5086] dump_stack+0x1c/0x5c [ 77.423110][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.423812][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.424460][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.425144][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.425759][ T5086] inet_sendmsg+0x154/0x284 [ 77.426409][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.427020][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.427724][ T5086] invoke_syscall+0x98/0x2b8 [ 77.428378][ T5086] el0_svc_common+0x138/0x258 [ 77.429034][ T5086] do_el0_svc+0x58/0x14c [ 77.429611][ T5086] el0_svc+0x78/0x1e0 [ 77.430149][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.430846][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.431701][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.433219][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.434186][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.435606][ T5086] Call trace: [ 77.436026][ T5086] dump_backtrace+0x0/0x43c [ 77.436640][ T5086] show_stack+0x2c/0x3c [ 77.437212][ T5086] __dump_stack+0x30/0x40 [ 77.437802][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.438444][ T5086] dump_stack+0x1c/0x5c [ 77.439018][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.439771][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.440436][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.441119][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.441738][ T5086] inet_sendmsg+0x154/0x284 [ 77.442364][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.442969][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.443703][ T5086] invoke_syscall+0x98/0x2b8 [ 77.444349][ T5086] el0_svc_common+0x138/0x258 [ 77.445034][ T5086] do_el0_svc+0x58/0x14c [ 77.445590][ T5086] el0_svc+0x78/0x1e0 [ 77.446141][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.446883][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.447897][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.449388][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.450346][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.451671][ T5086] Call trace: [ 77.452139][ T5086] dump_backtrace+0x0/0x43c [ 77.452718][ T5086] show_stack+0x2c/0x3c [ 77.453253][ T5086] __dump_stack+0x30/0x40 [ 77.453836][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.454444][ T5086] dump_stack+0x1c/0x5c [ 77.455058][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.455802][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.456494][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.457155][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.457801][ T5086] inet_sendmsg+0x154/0x284 [ 77.458429][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.459084][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.459770][ T5086] invoke_syscall+0x98/0x2b8 [ 77.460386][ T5086] el0_svc_common+0x138/0x258 [ 77.461060][ T5086] do_el0_svc+0x58/0x14c [ 77.461625][ T5086] el0_svc+0x78/0x1e0 [ 77.462165][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.462850][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.464043][ T5086] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.466262][ T5086] CPU: 1 PID: 5086 Comm: syz.0.23 Not tainted syzkaller #0 [ 77.466276][ T380] device hsr_slave_1 left promiscuous mode [ 77.467251][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.469501][ T5086] Call trace: [ 77.469943][ T5086] dump_backtrace+0x0/0x43c [ 77.470607][ T5086] show_stack+0x2c/0x3c [ 77.471187][ T5086] __dump_stack+0x30/0x40 [ 77.471771][ T5086] dump_stack_lvl+0xf8/0x160 [ 77.472394][ T5086] dump_stack+0x1c/0x5c [ 77.472960][ T5086] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.473711][ T5086] dccp_xmit_packet+0x298/0x448 [ 77.474376][ T5086] dccp_write_xmit+0x118/0x1d0 [ 77.475047][ T5086] dccp_sendmsg+0x538/0x8a8 [ 77.475699][ T5086] inet_sendmsg+0x154/0x284 [ 77.476326][ T5086] __sys_sendto+0x2e8/0x3d8 [ 77.476943][ T5086] __arm64_sys_sendto+0xd8/0xf8 [ 77.477575][ T5086] invoke_syscall+0x98/0x2b8 [ 77.478198][ T5086] el0_svc_common+0x138/0x258 [ 77.478820][ T5086] do_el0_svc+0x58/0x14c [ 77.479408][ T5086] el0_svc+0x78/0x1e0 [ 77.479935][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 77.480631][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 77.491969][ T5088] dccp_xmit_packet: Payload too large (65475) for featneg. [ 77.500093][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.501797][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.502794][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.504303][ T5088] Call trace: [ 77.504761][ T5088] dump_backtrace+0x0/0x43c [ 77.505430][ T5088] show_stack+0x2c/0x3c [ 77.506083][ T5088] __dump_stack+0x30/0x40 [ 77.506748][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.507452][ T5088] dump_stack+0x1c/0x5c [ 77.508098][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.508909][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.509602][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.510293][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.510949][ T5088] inet_sendmsg+0x154/0x284 [ 77.511604][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.512279][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.513012][ T5088] invoke_syscall+0x98/0x2b8 [ 77.513662][ T5088] el0_svc_common+0x138/0x258 [ 77.514358][ T5088] do_el0_svc+0x58/0x14c [ 77.514988][ T5088] el0_svc+0x78/0x1e0 [ 77.515562][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.516279][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.517794][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.519350][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.520352][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.521844][ T5088] Call trace: [ 77.522321][ T5088] dump_backtrace+0x0/0x43c [ 77.522942][ T5088] show_stack+0x2c/0x3c [ 77.523513][ T5088] __dump_stack+0x30/0x40 [ 77.524182][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.524869][ T5088] dump_stack+0x1c/0x5c [ 77.525500][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.526271][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.526997][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.527672][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.528344][ T5088] inet_sendmsg+0x154/0x284 [ 77.528972][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.529601][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.530319][ T5088] invoke_syscall+0x98/0x2b8 [ 77.530998][ T5088] el0_svc_common+0x138/0x258 [ 77.531650][ T5088] do_el0_svc+0x58/0x14c [ 77.532233][ T5088] el0_svc+0x78/0x1e0 [ 77.532787][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.533504][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.534568][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.536736][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.537756][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.539357][ T5088] Call trace: [ 77.539860][ T5088] dump_backtrace+0x0/0x43c [ 77.540555][ T5088] show_stack+0x2c/0x3c [ 77.541187][ T5088] __dump_stack+0x30/0x40 [ 77.541836][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.542513][ T5088] dump_stack+0x1c/0x5c [ 77.543110][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.543872][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.544561][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.544798][ T380] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 77.545279][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.546502][ T380] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 77.547138][ T5088] inet_sendmsg+0x154/0x284 [ 77.548831][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.549401][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.550102][ T5088] invoke_syscall+0x98/0x2b8 [ 77.550890][ T5088] el0_svc_common+0x138/0x258 [ 77.551602][ T5088] do_el0_svc+0x58/0x14c [ 77.552260][ T5088] el0_svc+0x78/0x1e0 [ 77.552863][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.553589][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.555445][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.556586][ T380] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 77.556984][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.558137][ T380] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 77.559253][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.561928][ T5088] Call trace: [ 77.562443][ T5088] dump_backtrace+0x0/0x43c [ 77.563092][ T5088] show_stack+0x2c/0x3c [ 77.563700][ T5088] __dump_stack+0x30/0x40 [ 77.564379][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.565069][ T5088] dump_stack+0x1c/0x5c [ 77.565708][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.566550][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.567300][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.568044][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.568702][ T5088] inet_sendmsg+0x154/0x284 [ 77.569363][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.570007][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.570718][ T5088] invoke_syscall+0x98/0x2b8 [ 77.571403][ T5088] el0_svc_common+0x138/0x258 [ 77.572054][ T5088] do_el0_svc+0x58/0x14c [ 77.572671][ T5088] el0_svc+0x78/0x1e0 [ 77.573245][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.573963][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.576096][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.576596][ T380] device bridge_slave_1 left promiscuous mode [ 77.577593][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.578615][ T380] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.579481][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.581938][ T5088] Call trace: [ 77.582417][ T5088] dump_backtrace+0x0/0x43c [ 77.583072][ T5088] show_stack+0x2c/0x3c [ 77.583631][ T5088] __dump_stack+0x30/0x40 [ 77.584212][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.584856][ T5088] dump_stack+0x1c/0x5c [ 77.585462][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.586238][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.586921][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.587602][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.588233][ T5088] inet_sendmsg+0x154/0x284 [ 77.588928][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.589628][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.590395][ T5088] invoke_syscall+0x98/0x2b8 [ 77.591043][ T5088] el0_svc_common+0x138/0x258 [ 77.591747][ T5088] do_el0_svc+0x58/0x14c [ 77.592350][ T5088] el0_svc+0x78/0x1e0 [ 77.592901][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.593691][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.594591][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.596107][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.597076][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.598503][ T5088] Call trace: [ 77.598954][ T5088] dump_backtrace+0x0/0x43c [ 77.599588][ T5088] show_stack+0x2c/0x3c [ 77.600133][ T5088] __dump_stack+0x30/0x40 [ 77.600708][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.601360][ T5088] dump_stack+0x1c/0x5c [ 77.601937][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.602689][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.603381][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.604061][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.604688][ T5088] inet_sendmsg+0x154/0x284 [ 77.605318][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.605958][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.606692][ T5088] invoke_syscall+0x98/0x2b8 [ 77.607387][ T5088] el0_svc_common+0x138/0x258 [ 77.608087][ T5088] do_el0_svc+0x58/0x14c [ 77.608742][ T5088] el0_svc+0x78/0x1e0 [ 77.609317][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.610039][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.610866][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.612582][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.613605][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.614998][ T5088] Call trace: [ 77.615471][ T5088] dump_backtrace+0x0/0x43c [ 77.616121][ T5088] show_stack+0x2c/0x3c [ 77.616700][ T5088] __dump_stack+0x30/0x40 [ 77.617315][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.618006][ T5088] dump_stack+0x1c/0x5c [ 77.618676][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.619433][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.620114][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.620759][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.621353][ T5088] inet_sendmsg+0x154/0x284 [ 77.621945][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.622533][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.623204][ T5088] invoke_syscall+0x98/0x2b8 [ 77.623849][ T5088] el0_svc_common+0x138/0x258 [ 77.624591][ T5088] do_el0_svc+0x58/0x14c [ 77.625241][ T5088] el0_svc+0x78/0x1e0 [ 77.625779][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.626503][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.627528][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.629251][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.630409][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.631968][ T5088] Call trace: [ 77.632461][ T5088] dump_backtrace+0x0/0x43c [ 77.633096][ T5088] show_stack+0x2c/0x3c [ 77.633684][ T5088] __dump_stack+0x30/0x40 [ 77.634408][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.635083][ T5088] dump_stack+0x1c/0x5c [ 77.635687][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.636484][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.637210][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.637849][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.638489][ T5088] inet_sendmsg+0x154/0x284 [ 77.639127][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.639816][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.640516][ T5088] invoke_syscall+0x98/0x2b8 [ 77.641195][ T5088] el0_svc_common+0x138/0x258 [ 77.641871][ T5088] do_el0_svc+0x58/0x14c [ 77.642482][ T5088] el0_svc+0x78/0x1e0 [ 77.643009][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.643744][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.644997][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.645995][ T380] device bridge_slave_0 left promiscuous mode [ 77.646547][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.647699][ T380] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.648504][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.650809][ T5088] Call trace: [ 77.651316][ T5088] dump_backtrace+0x0/0x43c [ 77.651975][ T5088] show_stack+0x2c/0x3c [ 77.652588][ T5088] __dump_stack+0x30/0x40 [ 77.653200][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.653802][ T5088] dump_stack+0x1c/0x5c [ 77.654383][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.655221][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.655923][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.656599][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.657189][ T5088] inet_sendmsg+0x154/0x284 [ 77.657857][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.658453][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.659172][ T5088] invoke_syscall+0x98/0x2b8 [ 77.659871][ T5088] el0_svc_common+0x138/0x258 [ 77.660506][ T5088] do_el0_svc+0x58/0x14c [ 77.661123][ T5088] el0_svc+0x78/0x1e0 [ 77.661681][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.662372][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.663166][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.665077][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.666062][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.667465][ T5088] Call trace: [ 77.667889][ T5088] dump_backtrace+0x0/0x43c [ 77.668542][ T5088] show_stack+0x2c/0x3c [ 77.669122][ T5088] __dump_stack+0x30/0x40 [ 77.669755][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.670381][ T5088] dump_stack+0x1c/0x5c [ 77.670911][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.671752][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.672547][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.673341][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.674062][ T5088] inet_sendmsg+0x154/0x284 [ 77.674781][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.675428][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.676134][ T5088] invoke_syscall+0x98/0x2b8 [ 77.676785][ T5088] el0_svc_common+0x138/0x258 [ 77.677433][ T5088] do_el0_svc+0x58/0x14c [ 77.678053][ T5088] el0_svc+0x78/0x1e0 [ 77.678666][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.679461][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.680364][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.681945][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.682992][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.684388][ T5088] Call trace: [ 77.684861][ T5088] dump_backtrace+0x0/0x43c [ 77.685495][ T5088] show_stack+0x2c/0x3c [ 77.686041][ T5088] __dump_stack+0x30/0x40 [ 77.686657][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.687333][ T5088] dump_stack+0x1c/0x5c [ 77.687947][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.688746][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.689418][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.690096][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.690747][ T5088] inet_sendmsg+0x154/0x284 [ 77.691397][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.692049][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.692679][ T5088] invoke_syscall+0x98/0x2b8 [ 77.693321][ T5088] el0_svc_common+0x138/0x258 [ 77.694016][ T5088] do_el0_svc+0x58/0x14c [ 77.694677][ T5088] el0_svc+0x78/0x1e0 [ 77.695240][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.695970][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.697177][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.698804][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.699853][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.701260][ T5088] Call trace: [ 77.701704][ T5088] dump_backtrace+0x0/0x43c [ 77.702315][ T5088] show_stack+0x2c/0x3c [ 77.702917][ T5088] __dump_stack+0x30/0x40 [ 77.703513][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.704202][ T5088] dump_stack+0x1c/0x5c [ 77.704828][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.705665][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.706391][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.707068][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.707703][ T5088] inet_sendmsg+0x154/0x284 [ 77.708340][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.709038][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.709744][ T5088] invoke_syscall+0x98/0x2b8 [ 77.710389][ T5088] el0_svc_common+0x138/0x258 [ 77.711033][ T5088] do_el0_svc+0x58/0x14c [ 77.711681][ T5088] el0_svc+0x78/0x1e0 [ 77.712254][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.712922][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.713917][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.715662][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.716711][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.718191][ T5088] Call trace: [ 77.718659][ T5088] dump_backtrace+0x0/0x43c [ 77.719369][ T5088] show_stack+0x2c/0x3c [ 77.720014][ T5088] __dump_stack+0x30/0x40 [ 77.720624][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.721304][ T5088] dump_stack+0x1c/0x5c [ 77.721894][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.722669][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.723417][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.724113][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.724832][ T5088] inet_sendmsg+0x154/0x284 [ 77.725429][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.726088][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.726766][ T5088] invoke_syscall+0x98/0x2b8 [ 77.727474][ T5088] el0_svc_common+0x138/0x258 [ 77.728161][ T5088] do_el0_svc+0x58/0x14c [ 77.728751][ T5088] el0_svc+0x78/0x1e0 [ 77.729330][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.730100][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.730961][ T5088] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.732509][ T5088] CPU: 1 PID: 5088 Comm: syz.0.24 Not tainted syzkaller #0 [ 77.733554][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.735061][ T5088] Call trace: [ 77.735544][ T5088] dump_backtrace+0x0/0x43c [ 77.736207][ T5088] show_stack+0x2c/0x3c [ 77.736797][ T5088] __dump_stack+0x30/0x40 [ 77.737400][ T5088] dump_stack_lvl+0xf8/0x160 [ 77.738045][ T5088] dump_stack+0x1c/0x5c [ 77.738653][ T5088] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.739457][ T5088] dccp_xmit_packet+0x298/0x448 [ 77.740191][ T5088] dccp_write_xmit+0x118/0x1d0 [ 77.740893][ T5088] dccp_sendmsg+0x538/0x8a8 [ 77.741534][ T5088] inet_sendmsg+0x154/0x284 [ 77.742231][ T5088] __sys_sendto+0x2e8/0x3d8 [ 77.742900][ T5088] __arm64_sys_sendto+0xd8/0xf8 [ 77.743576][ T5088] invoke_syscall+0x98/0x2b8 [ 77.744253][ T5088] el0_svc_common+0x138/0x258 [ 77.744944][ T5088] do_el0_svc+0x58/0x14c [ 77.745614][ T5088] el0_svc+0x78/0x1e0 [ 77.746190][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 77.746878][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 77.761818][ T5090] dccp_xmit_packet: Payload too large (65475) for featneg. [ 77.770129][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.771648][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.772669][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.774334][ T5090] Call trace: [ 77.774855][ T5090] dump_backtrace+0x0/0x43c [ 77.775578][ T5090] show_stack+0x2c/0x3c [ 77.776232][ T5090] __dump_stack+0x30/0x40 [ 77.776931][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.777654][ T5090] dump_stack+0x1c/0x5c [ 77.778286][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.779149][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.779885][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.780556][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.781156][ T5090] inet_sendmsg+0x154/0x284 [ 77.781768][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.782382][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.783125][ T5090] invoke_syscall+0x98/0x2b8 [ 77.783774][ T5090] el0_svc_common+0x138/0x258 [ 77.784408][ T5090] do_el0_svc+0x58/0x14c [ 77.785009][ T5090] el0_svc+0x78/0x1e0 [ 77.785570][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.786265][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.787654][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.789394][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.790475][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.791812][ T5090] Call trace: [ 77.792284][ T5090] dump_backtrace+0x0/0x43c [ 77.792905][ T5090] show_stack+0x2c/0x3c [ 77.793504][ T5090] __dump_stack+0x30/0x40 [ 77.794138][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.794842][ T5090] dump_stack+0x1c/0x5c [ 77.795456][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.796296][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.796983][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.797648][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.798318][ T5090] inet_sendmsg+0x154/0x284 [ 77.798945][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.799571][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.800220][ T5090] invoke_syscall+0x98/0x2b8 [ 77.800821][ T5090] el0_svc_common+0x138/0x258 [ 77.801493][ T5090] do_el0_svc+0x58/0x14c [ 77.802111][ T5090] el0_svc+0x78/0x1e0 [ 77.802673][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.803412][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.804271][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.805805][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.806786][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.808152][ T5090] Call trace: [ 77.808561][ T5090] dump_backtrace+0x0/0x43c [ 77.809223][ T5090] show_stack+0x2c/0x3c [ 77.809806][ T5090] __dump_stack+0x30/0x40 [ 77.810521][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.811199][ T5090] dump_stack+0x1c/0x5c [ 77.811791][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.812596][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.813307][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.814015][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.814671][ T5090] inet_sendmsg+0x154/0x284 [ 77.815323][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.815977][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.816774][ T5090] invoke_syscall+0x98/0x2b8 [ 77.817474][ T5090] el0_svc_common+0x138/0x258 [ 77.818134][ T5090] do_el0_svc+0x58/0x14c [ 77.818772][ T5090] el0_svc+0x78/0x1e0 [ 77.819337][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.820062][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.821472][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.823265][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.824403][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.824428][ T380] device veth1_macvtap left promiscuous mode [ 77.825851][ T5090] Call trace: [ 77.825857][ T5090] dump_backtrace+0x0/0x43c [ 77.826916][ T380] device veth0_macvtap left promiscuous mode [ 77.827323][ T5090] show_stack+0x2c/0x3c [ 77.828072][ T380] device veth1_vlan left promiscuous mode [ 77.828802][ T5090] __dump_stack+0x30/0x40 [ 77.829446][ T380] device veth0_vlan left promiscuous mode [ 77.830223][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.832250][ T5090] dump_stack+0x1c/0x5c [ 77.832871][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.833687][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.834439][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.835172][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.835917][ T5090] inet_sendmsg+0x154/0x284 [ 77.836660][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.837349][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.838126][ T5090] invoke_syscall+0x98/0x2b8 [ 77.838794][ T5090] el0_svc_common+0x138/0x258 [ 77.839494][ T5090] do_el0_svc+0x58/0x14c [ 77.840140][ T5090] el0_svc+0x78/0x1e0 [ 77.840698][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.841384][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.842251][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.843850][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.844980][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.846481][ T5090] Call trace: [ 77.847017][ T5090] dump_backtrace+0x0/0x43c [ 77.847696][ T5090] show_stack+0x2c/0x3c [ 77.848301][ T5090] __dump_stack+0x30/0x40 [ 77.848960][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.849674][ T5090] dump_stack+0x1c/0x5c [ 77.850286][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.851099][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.851814][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.852501][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.853101][ T5090] inet_sendmsg+0x154/0x284 [ 77.853752][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.854430][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.855151][ T5090] invoke_syscall+0x98/0x2b8 [ 77.855823][ T5090] el0_svc_common+0x138/0x258 [ 77.856520][ T5090] do_el0_svc+0x58/0x14c [ 77.857140][ T5090] el0_svc+0x78/0x1e0 [ 77.857723][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.858440][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.859526][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.861150][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.862220][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.863801][ T5090] Call trace: [ 77.864230][ T5090] dump_backtrace+0x0/0x43c [ 77.864498][ T5052] Bluetooth: hci0: command 0x0419 tx timeout [ 77.864956][ T5090] show_stack+0x2c/0x3c [ 77.866583][ T5090] __dump_stack+0x30/0x40 [ 77.867185][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.867856][ T5090] dump_stack+0x1c/0x5c [ 77.868480][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.869255][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.869957][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.870671][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.871318][ T5090] inet_sendmsg+0x154/0x284 [ 77.871996][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.872625][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.873316][ T5090] invoke_syscall+0x98/0x2b8 [ 77.873963][ T5090] el0_svc_common+0x138/0x258 [ 77.874655][ T5090] do_el0_svc+0x58/0x14c [ 77.875317][ T5090] el0_svc+0x78/0x1e0 [ 77.875894][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.876646][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.878055][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.879435][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.880432][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.881898][ T5090] Call trace: [ 77.882370][ T5090] dump_backtrace+0x0/0x43c [ 77.882991][ T5090] show_stack+0x2c/0x3c [ 77.883578][ T5090] __dump_stack+0x30/0x40 [ 77.884190][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.884847][ T5090] dump_stack+0x1c/0x5c [ 77.885477][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.886229][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.886876][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.887525][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.888162][ T5090] inet_sendmsg+0x154/0x284 [ 77.888761][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.889506][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.890278][ T5090] invoke_syscall+0x98/0x2b8 [ 77.890937][ T5090] el0_svc_common+0x138/0x258 [ 77.891561][ T5090] do_el0_svc+0x58/0x14c [ 77.892162][ T5090] el0_svc+0x78/0x1e0 [ 77.892775][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.893428][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.895464][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.897005][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.898020][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.899453][ T5090] Call trace: [ 77.899957][ T5090] dump_backtrace+0x0/0x43c [ 77.900605][ T5090] show_stack+0x2c/0x3c [ 77.901213][ T5090] __dump_stack+0x30/0x40 [ 77.901866][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.902562][ T5090] dump_stack+0x1c/0x5c [ 77.903157][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.903988][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.904652][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.905368][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.906019][ T5090] inet_sendmsg+0x154/0x284 [ 77.906712][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.907418][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.908083][ T5090] invoke_syscall+0x98/0x2b8 [ 77.908731][ T5090] el0_svc_common+0x138/0x258 [ 77.909380][ T5090] do_el0_svc+0x58/0x14c [ 77.910042][ T5090] el0_svc+0x78/0x1e0 [ 77.910714][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.911440][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.913352][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.915051][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.916094][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.917663][ T5090] Call trace: [ 77.918176][ T5090] dump_backtrace+0x0/0x43c [ 77.918826][ T5090] show_stack+0x2c/0x3c [ 77.919512][ T5090] __dump_stack+0x30/0x40 [ 77.920153][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.920858][ T5090] dump_stack+0x1c/0x5c [ 77.921422][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.922171][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.922859][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.923534][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.924120][ T5090] inet_sendmsg+0x154/0x284 [ 77.924820][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.925478][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.926179][ T5090] invoke_syscall+0x98/0x2b8 [ 77.926879][ T5090] el0_svc_common+0x138/0x258 [ 77.927555][ T5090] do_el0_svc+0x58/0x14c [ 77.928151][ T5090] el0_svc+0x78/0x1e0 [ 77.928671][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.929351][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.930545][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.932058][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.933033][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.934386][ T5090] Call trace: [ 77.934868][ T5090] dump_backtrace+0x0/0x43c [ 77.935515][ T5090] show_stack+0x2c/0x3c [ 77.936128][ T5090] __dump_stack+0x30/0x40 [ 77.936727][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.937360][ T5090] dump_stack+0x1c/0x5c [ 77.937971][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.938772][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.939471][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.940126][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.940752][ T5090] inet_sendmsg+0x154/0x284 [ 77.941376][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.942015][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.942746][ T5090] invoke_syscall+0x98/0x2b8 [ 77.943362][ T5090] el0_svc_common+0x138/0x258 [ 77.944040][ T5090] do_el0_svc+0x58/0x14c [ 77.944642][ T5090] el0_svc+0x78/0x1e0 [ 77.945209][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.945888][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.946935][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.948503][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.949517][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.951020][ T5090] Call trace: [ 77.951486][ T5090] dump_backtrace+0x0/0x43c [ 77.952134][ T5090] show_stack+0x2c/0x3c [ 77.952702][ T5090] __dump_stack+0x30/0x40 [ 77.953320][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.953896][ T5090] dump_stack+0x1c/0x5c [ 77.954474][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.955291][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.956007][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.956700][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.957330][ T5090] inet_sendmsg+0x154/0x284 [ 77.957957][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.958530][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.959155][ T5090] invoke_syscall+0x98/0x2b8 [ 77.959723][ T5090] el0_svc_common+0x138/0x258 [ 77.960341][ T5090] do_el0_svc+0x58/0x14c [ 77.960908][ T5090] el0_svc+0x78/0x1e0 [ 77.961400][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.962078][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.963079][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.964851][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.965946][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.967455][ T5090] Call trace: [ 77.967911][ T5090] dump_backtrace+0x0/0x43c [ 77.968590][ T5090] show_stack+0x2c/0x3c [ 77.969187][ T5090] __dump_stack+0x30/0x40 [ 77.969793][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.970413][ T5090] dump_stack+0x1c/0x5c [ 77.970987][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.971750][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.972491][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.973213][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.973858][ T5090] inet_sendmsg+0x154/0x284 [ 77.974520][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.975226][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.975965][ T5090] invoke_syscall+0x98/0x2b8 [ 77.976582][ T5090] el0_svc_common+0x138/0x258 [ 77.977281][ T5090] do_el0_svc+0x58/0x14c [ 77.977906][ T5090] el0_svc+0x78/0x1e0 [ 77.978432][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.979150][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.980010][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.981497][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.982455][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.983936][ T5090] Call trace: [ 77.984365][ T5090] dump_backtrace+0x0/0x43c [ 77.984995][ T5090] show_stack+0x2c/0x3c [ 77.985587][ T5090] __dump_stack+0x30/0x40 [ 77.986182][ T5090] dump_stack_lvl+0xf8/0x160 [ 77.986872][ T5090] dump_stack+0x1c/0x5c [ 77.987475][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 77.988175][ T5090] dccp_xmit_packet+0x298/0x448 [ 77.988812][ T5090] dccp_write_xmit+0x118/0x1d0 [ 77.989514][ T5090] dccp_sendmsg+0x538/0x8a8 [ 77.990096][ T5090] inet_sendmsg+0x154/0x284 [ 77.990720][ T5090] __sys_sendto+0x2e8/0x3d8 [ 77.991322][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 77.991958][ T5090] invoke_syscall+0x98/0x2b8 [ 77.992593][ T5090] el0_svc_common+0x138/0x258 [ 77.993244][ T5090] do_el0_svc+0x58/0x14c [ 77.993775][ T5090] el0_svc+0x78/0x1e0 [ 77.994333][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 77.995124][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 77.996082][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 77.997663][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 77.998707][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.000238][ T5090] Call trace: [ 78.000718][ T5090] dump_backtrace+0x0/0x43c [ 78.001373][ T5090] show_stack+0x2c/0x3c [ 78.001984][ T5090] __dump_stack+0x30/0x40 [ 78.002617][ T5090] dump_stack_lvl+0xf8/0x160 [ 78.003296][ T5090] dump_stack+0x1c/0x5c [ 78.003875][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.004631][ T5090] dccp_xmit_packet+0x298/0x448 [ 78.005314][ T5090] dccp_write_xmit+0x118/0x1d0 [ 78.005925][ T5090] dccp_sendmsg+0x538/0x8a8 [ 78.006510][ T5090] inet_sendmsg+0x154/0x284 [ 78.007145][ T5090] __sys_sendto+0x2e8/0x3d8 [ 78.007831][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 78.008526][ T5090] invoke_syscall+0x98/0x2b8 [ 78.009145][ T5090] el0_svc_common+0x138/0x258 [ 78.009804][ T5090] do_el0_svc+0x58/0x14c [ 78.010368][ T5090] el0_svc+0x78/0x1e0 [ 78.010902][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 78.011571][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 78.012353][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.013875][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.014900][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.016231][ T5090] Call trace: [ 78.016637][ T5090] dump_backtrace+0x0/0x43c [ 78.017285][ T5090] show_stack+0x2c/0x3c [ 78.017863][ T5090] __dump_stack+0x30/0x40 [ 78.018482][ T5090] dump_stack_lvl+0xf8/0x160 [ 78.019418][ T5090] dump_stack+0x1c/0x5c [ 78.020000][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.020774][ T5090] dccp_xmit_packet+0x298/0x448 [ 78.021467][ T5090] dccp_write_xmit+0x118/0x1d0 [ 78.022160][ T5090] dccp_sendmsg+0x538/0x8a8 [ 78.022818][ T5090] inet_sendmsg+0x154/0x284 [ 78.023424][ T5090] __sys_sendto+0x2e8/0x3d8 [ 78.024039][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 78.024675][ T5090] invoke_syscall+0x98/0x2b8 [ 78.025316][ T5090] el0_svc_common+0x138/0x258 [ 78.026023][ T5090] do_el0_svc+0x58/0x14c [ 78.026655][ T5090] el0_svc+0x78/0x1e0 [ 78.027215][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 78.027918][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 78.029074][ T5090] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.030683][ T5090] CPU: 1 PID: 5090 Comm: syz.0.25 Not tainted syzkaller #0 [ 78.031796][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.033232][ T5090] Call trace: [ 78.033725][ T5090] dump_backtrace+0x0/0x43c [ 78.034356][ T5090] show_stack+0x2c/0x3c [ 78.034958][ T5090] __dump_stack+0x30/0x40 [ 78.035597][ T5090] dump_stack_lvl+0xf8/0x160 [ 78.036233][ T5090] dump_stack+0x1c/0x5c [ 78.036873][ T5090] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.037690][ T5090] dccp_xmit_packet+0x298/0x448 [ 78.038385][ T5090] dccp_write_xmit+0x118/0x1d0 [ 78.039121][ T5090] dccp_sendmsg+0x538/0x8a8 [ 78.039764][ T5090] inet_sendmsg+0x154/0x284 [ 78.040426][ T5090] __sys_sendto+0x2e8/0x3d8 [ 78.041085][ T5090] __arm64_sys_sendto+0xd8/0xf8 [ 78.041818][ T5090] invoke_syscall+0x98/0x2b8 [ 78.042501][ T5090] el0_svc_common+0x138/0x258 [ 78.043157][ T5090] do_el0_svc+0x58/0x14c [ 78.043825][ T5090] el0_svc+0x78/0x1e0 [ 78.044453][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 78.045275][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 78.088936][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.090689][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.091730][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.093218][ T5094] Call trace: [ 78.093697][ T5094] dump_backtrace+0x0/0x43c [ 78.094401][ T5094] show_stack+0x2c/0x3c [ 78.095043][ T5094] __dump_stack+0x30/0x40 [ 78.095723][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.096375][ T5094] dump_stack+0x1c/0x5c [ 78.096955][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.097762][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.098474][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.099130][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.099825][ T5094] inet_sendmsg+0x154/0x284 [ 78.100499][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.101112][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.101849][ T5094] invoke_syscall+0x98/0x2b8 [ 78.102525][ T5094] el0_svc_common+0x138/0x258 [ 78.103161][ T5094] do_el0_svc+0x58/0x14c [ 78.103728][ T5094] el0_svc+0x78/0x1e0 [ 78.104324][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.105086][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.109203][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.110923][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.112052][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.113542][ T5094] Call trace: [ 78.114054][ T5094] dump_backtrace+0x0/0x43c [ 78.114696][ T5094] show_stack+0x2c/0x3c [ 78.115399][ T5094] __dump_stack+0x30/0x40 [ 78.116065][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.116772][ T5094] dump_stack+0x1c/0x5c [ 78.117448][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.118308][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.119082][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.119811][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.120459][ T5094] inet_sendmsg+0x154/0x284 [ 78.121115][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.121768][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.122699][ T5094] invoke_syscall+0x98/0x2b8 [ 78.123350][ T5094] el0_svc_common+0x138/0x258 [ 78.124049][ T5094] do_el0_svc+0x58/0x14c [ 78.124686][ T5094] el0_svc+0x78/0x1e0 [ 78.125277][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.125980][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.127289][ T380] team0 (unregistering): Port device team_slave_1 removed [ 78.128132][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.130037][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.131159][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.132761][ T5094] Call trace: [ 78.133298][ T5094] dump_backtrace+0x0/0x43c [ 78.134014][ T5094] show_stack+0x2c/0x3c [ 78.134628][ T5094] __dump_stack+0x30/0x40 [ 78.135291][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.135951][ T5094] dump_stack+0x1c/0x5c [ 78.136522][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.137364][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.138102][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.138766][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.139441][ T5094] inet_sendmsg+0x154/0x284 [ 78.140077][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.140762][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.141489][ T5094] invoke_syscall+0x98/0x2b8 [ 78.142163][ T5094] el0_svc_common+0x138/0x258 [ 78.142882][ T5094] do_el0_svc+0x58/0x14c [ 78.143481][ T5094] el0_svc+0x78/0x1e0 [ 78.144065][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.144758][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.145804][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.146688][ T380] team0 (unregistering): Port device team_slave_0 removed [ 78.147504][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.149715][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.151205][ T5094] Call trace: [ 78.151699][ T5094] dump_backtrace+0x0/0x43c [ 78.152394][ T5094] show_stack+0x2c/0x3c [ 78.153048][ T5094] __dump_stack+0x30/0x40 [ 78.153674][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.154335][ T5094] dump_stack+0x1c/0x5c [ 78.154952][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.155700][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.156369][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.157038][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.157712][ T5094] inet_sendmsg+0x154/0x284 [ 78.158331][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.158919][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.159640][ T5094] invoke_syscall+0x98/0x2b8 [ 78.160362][ T5094] el0_svc_common+0x138/0x258 [ 78.161038][ T5094] do_el0_svc+0x58/0x14c [ 78.161658][ T5094] el0_svc+0x78/0x1e0 [ 78.162225][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.162891][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.165617][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.165836][ T380] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.167425][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.169765][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.171169][ T5094] Call trace: [ 78.171656][ T5094] dump_backtrace+0x0/0x43c [ 78.172353][ T5094] show_stack+0x2c/0x3c [ 78.172943][ T5094] __dump_stack+0x30/0x40 [ 78.173595][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.174281][ T5094] dump_stack+0x1c/0x5c [ 78.174933][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.175779][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.176520][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.177264][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.177976][ T5094] inet_sendmsg+0x154/0x284 [ 78.178658][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.179289][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.179956][ T5094] invoke_syscall+0x98/0x2b8 [ 78.180674][ T5094] el0_svc_common+0x138/0x258 [ 78.181355][ T5094] do_el0_svc+0x58/0x14c [ 78.182001][ T5094] el0_svc+0x78/0x1e0 [ 78.182591][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.183277][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.184296][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.186019][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.187106][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.188534][ T5094] Call trace: [ 78.188981][ T5094] dump_backtrace+0x0/0x43c [ 78.189639][ T5094] show_stack+0x2c/0x3c [ 78.190283][ T5094] __dump_stack+0x30/0x40 [ 78.190916][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.191642][ T5094] dump_stack+0x1c/0x5c [ 78.192265][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.193031][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.193698][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.194332][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.194973][ T5094] inet_sendmsg+0x154/0x284 [ 78.195614][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.196244][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.196885][ T5094] invoke_syscall+0x98/0x2b8 [ 78.197524][ T5094] el0_svc_common+0x138/0x258 [ 78.198172][ T5094] do_el0_svc+0x58/0x14c [ 78.198780][ T5094] el0_svc+0x78/0x1e0 [ 78.199361][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.200066][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.201053][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.202794][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.203856][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.205388][ T5094] Call trace: [ 78.205860][ T5094] dump_backtrace+0x0/0x43c [ 78.206497][ T5094] show_stack+0x2c/0x3c [ 78.207100][ T5094] __dump_stack+0x30/0x40 [ 78.207693][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.208380][ T5094] dump_stack+0x1c/0x5c [ 78.209007][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.209788][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.210510][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.211210][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.211873][ T5094] inet_sendmsg+0x154/0x284 [ 78.212555][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.213198][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.213926][ T5094] invoke_syscall+0x98/0x2b8 [ 78.214582][ T5094] el0_svc_common+0x138/0x258 [ 78.215279][ T5094] do_el0_svc+0x58/0x14c [ 78.215927][ T5094] el0_svc+0x78/0x1e0 [ 78.216505][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.217222][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.218419][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.220240][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.221314][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.222763][ T5094] Call trace: [ 78.223207][ T5094] dump_backtrace+0x0/0x43c [ 78.223850][ T5094] show_stack+0x2c/0x3c [ 78.224483][ T5094] __dump_stack+0x30/0x40 [ 78.225111][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.225730][ T5094] dump_stack+0x1c/0x5c [ 78.226340][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.227080][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.227789][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.228563][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.229200][ T5094] inet_sendmsg+0x154/0x284 [ 78.229880][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.230541][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.231216][ T5094] invoke_syscall+0x98/0x2b8 [ 78.231862][ T5094] el0_svc_common+0x138/0x258 [ 78.232583][ T5094] do_el0_svc+0x58/0x14c [ 78.233170][ T5094] el0_svc+0x78/0x1e0 [ 78.233710][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.234408][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.235428][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.236366][ T380] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.237110][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.239309][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.240800][ T5094] Call trace: [ 78.241298][ T5094] dump_backtrace+0x0/0x43c [ 78.241950][ T5094] show_stack+0x2c/0x3c [ 78.242554][ T5094] __dump_stack+0x30/0x40 [ 78.243207][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.243931][ T5094] dump_stack+0x1c/0x5c [ 78.244528][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.245311][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.246000][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.246713][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.247390][ T5094] inet_sendmsg+0x154/0x284 [ 78.248101][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.248729][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.249429][ T5094] invoke_syscall+0x98/0x2b8 [ 78.250079][ T5094] el0_svc_common+0x138/0x258 [ 78.250780][ T5094] do_el0_svc+0x58/0x14c [ 78.251408][ T5094] el0_svc+0x78/0x1e0 [ 78.251946][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.252706][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.253696][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.255531][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.256652][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.258135][ T5094] Call trace: [ 78.258598][ T5094] dump_backtrace+0x0/0x43c [ 78.259275][ T5094] show_stack+0x2c/0x3c [ 78.259859][ T5094] __dump_stack+0x30/0x40 [ 78.260483][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.261210][ T5094] dump_stack+0x1c/0x5c [ 78.261815][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.262586][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.263278][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.263937][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.264655][ T5094] inet_sendmsg+0x154/0x284 [ 78.265317][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.266032][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.266772][ T5094] invoke_syscall+0x98/0x2b8 [ 78.267478][ T5094] el0_svc_common+0x138/0x258 [ 78.268221][ T5094] do_el0_svc+0x58/0x14c [ 78.268891][ T5094] el0_svc+0x78/0x1e0 [ 78.269459][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.270193][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.271684][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.273387][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.274401][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.275884][ T5094] Call trace: [ 78.276400][ T5094] dump_backtrace+0x0/0x43c [ 78.277005][ T5094] show_stack+0x2c/0x3c [ 78.277616][ T5094] __dump_stack+0x30/0x40 [ 78.278286][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.278911][ T5094] dump_stack+0x1c/0x5c [ 78.279560][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.280377][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.281111][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.281841][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.282498][ T5094] inet_sendmsg+0x154/0x284 [ 78.283184][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.283893][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.284565][ T5094] invoke_syscall+0x98/0x2b8 [ 78.285235][ T5094] el0_svc_common+0x138/0x258 [ 78.285914][ T5094] do_el0_svc+0x58/0x14c [ 78.286521][ T5094] el0_svc+0x78/0x1e0 [ 78.287122][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.287762][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.288789][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.290494][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.291502][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.292909][ T5094] Call trace: [ 78.293317][ T5094] dump_backtrace+0x0/0x43c [ 78.294028][ T5094] show_stack+0x2c/0x3c [ 78.294671][ T5094] __dump_stack+0x30/0x40 [ 78.295293][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.295929][ T5094] dump_stack+0x1c/0x5c [ 78.296527][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.297286][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.298011][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.298752][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.299365][ T5094] inet_sendmsg+0x154/0x284 [ 78.299961][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.300621][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.301372][ T5094] invoke_syscall+0x98/0x2b8 [ 78.302065][ T5094] el0_svc_common+0x138/0x258 [ 78.302761][ T5094] do_el0_svc+0x58/0x14c [ 78.303391][ T5094] el0_svc+0x78/0x1e0 [ 78.303973][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.304713][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.305675][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.307323][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.308386][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.309854][ T5094] Call trace: [ 78.310324][ T5094] dump_backtrace+0x0/0x43c [ 78.310973][ T5094] show_stack+0x2c/0x3c [ 78.311594][ T5094] __dump_stack+0x30/0x40 [ 78.312198][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.312880][ T5094] dump_stack+0x1c/0x5c [ 78.313501][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.314306][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.315017][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.315654][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.316282][ T5094] inet_sendmsg+0x154/0x284 [ 78.316926][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.317590][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.318284][ T5094] invoke_syscall+0x98/0x2b8 [ 78.318930][ T5094] el0_svc_common+0x138/0x258 [ 78.319591][ T5094] do_el0_svc+0x58/0x14c [ 78.320160][ T5094] el0_svc+0x78/0x1e0 [ 78.320685][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.321414][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.322392][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.324258][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.325309][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.326860][ T5094] Call trace: [ 78.327359][ T5094] dump_backtrace+0x0/0x43c [ 78.328010][ T5094] show_stack+0x2c/0x3c [ 78.328615][ T5094] __dump_stack+0x30/0x40 [ 78.329262][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.329908][ T5094] dump_stack+0x1c/0x5c [ 78.330517][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.331308][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.332026][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.332756][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.333391][ T5094] inet_sendmsg+0x154/0x284 [ 78.334041][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.334684][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.335346][ T5094] invoke_syscall+0x98/0x2b8 [ 78.336072][ T5094] el0_svc_common+0x138/0x258 [ 78.336778][ T5094] do_el0_svc+0x58/0x14c [ 78.337374][ T5094] el0_svc+0x78/0x1e0 [ 78.337977][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.338771][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.339713][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.341445][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.342454][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.343933][ T5094] Call trace: [ 78.344406][ T5094] dump_backtrace+0x0/0x43c [ 78.345074][ T5094] show_stack+0x2c/0x3c [ 78.345689][ T5094] __dump_stack+0x30/0x40 [ 78.346357][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.347075][ T5094] dump_stack+0x1c/0x5c [ 78.347661][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.348488][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.349237][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.349923][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.350562][ T5094] inet_sendmsg+0x154/0x284 [ 78.351262][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.351913][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.352559][ T5094] invoke_syscall+0x98/0x2b8 [ 78.353233][ T5094] el0_svc_common+0x138/0x258 [ 78.353948][ T5094] do_el0_svc+0x58/0x14c [ 78.354647][ T5094] el0_svc+0x78/0x1e0 [ 78.355250][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.355982][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.357043][ T5094] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.358744][ T5094] CPU: 1 PID: 5094 Comm: syz.0.27 Not tainted syzkaller #0 [ 78.359723][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.361196][ T5094] Call trace: [ 78.361674][ T5094] dump_backtrace+0x0/0x43c [ 78.362401][ T5094] show_stack+0x2c/0x3c [ 78.363007][ T5094] __dump_stack+0x30/0x40 [ 78.363606][ T5094] dump_stack_lvl+0xf8/0x160 [ 78.364216][ T5094] dump_stack+0x1c/0x5c [ 78.364820][ T5094] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.365644][ T5094] dccp_xmit_packet+0x298/0x448 [ 78.366391][ T5094] dccp_write_xmit+0x118/0x1d0 [ 78.367092][ T5094] dccp_sendmsg+0x538/0x8a8 [ 78.367749][ T5094] inet_sendmsg+0x154/0x284 [ 78.368410][ T5094] __sys_sendto+0x2e8/0x3d8 [ 78.369076][ T5094] __arm64_sys_sendto+0xd8/0xf8 [ 78.369841][ T5094] invoke_syscall+0x98/0x2b8 [ 78.370365][ T380] bond0 (unregistering): Released all slaves [ 78.370512][ T5094] el0_svc_common+0x138/0x258 [ 78.372082][ T5094] do_el0_svc+0x58/0x14c [ 78.372667][ T5094] el0_svc+0x78/0x1e0 [ 78.373253][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 78.374004][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 78.406982][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.408845][ T5098] CPU: 1 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.409920][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.411494][ T5098] Call trace: [ 78.412000][ T5098] dump_backtrace+0x0/0x43c [ 78.412626][ T5098] show_stack+0x2c/0x3c [ 78.413268][ T5098] __dump_stack+0x30/0x40 [ 78.413934][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.414609][ T5098] dump_stack+0x1c/0x5c [ 78.415257][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.416135][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.416880][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.417595][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.418251][ T5098] inet_sendmsg+0x154/0x284 [ 78.418896][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.419597][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.420304][ T5098] invoke_syscall+0x98/0x2b8 [ 78.421034][ T5098] el0_svc_common+0x138/0x258 [ 78.421758][ T5098] do_el0_svc+0x58/0x14c [ 78.422406][ T5098] el0_svc+0x78/0x1e0 [ 78.423007][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.423744][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.425142][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.427002][ T5098] CPU: 1 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.428102][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.429621][ T5098] Call trace: [ 78.430124][ T5098] dump_backtrace+0x0/0x43c [ 78.430798][ T5098] show_stack+0x2c/0x3c [ 78.431409][ T5098] __dump_stack+0x30/0x40 [ 78.432041][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.432776][ T5098] dump_stack+0x1c/0x5c [ 78.433355][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.434080][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.434766][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.435467][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.436125][ T5098] inet_sendmsg+0x154/0x284 [ 78.436770][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.437431][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.438097][ T5098] invoke_syscall+0x98/0x2b8 [ 78.438731][ T5098] el0_svc_common+0x138/0x258 [ 78.439387][ T5098] do_el0_svc+0x58/0x14c [ 78.439965][ T5098] el0_svc+0x78/0x1e0 [ 78.440510][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.441200][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.443041][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.446921][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.448033][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.449441][ T5098] Call trace: [ 78.449931][ T5098] dump_backtrace+0x0/0x43c [ 78.450588][ T5098] show_stack+0x2c/0x3c [ 78.451199][ T5098] __dump_stack+0x30/0x40 [ 78.451848][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.452595][ T5098] dump_stack+0x1c/0x5c [ 78.453293][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.454053][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.454798][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.455516][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.456165][ T5098] inet_sendmsg+0x154/0x284 [ 78.456819][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.457488][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.458234][ T5098] invoke_syscall+0x98/0x2b8 [ 78.458903][ T5098] el0_svc_common+0x138/0x258 [ 78.459608][ T5098] do_el0_svc+0x58/0x14c [ 78.460235][ T5098] el0_svc+0x78/0x1e0 [ 78.460817][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.461529][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.462805][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.464617][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.465612][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.467021][ T5098] Call trace: [ 78.467465][ T5098] dump_backtrace+0x0/0x43c [ 78.468149][ T5098] show_stack+0x2c/0x3c [ 78.468728][ T5098] __dump_stack+0x30/0x40 [ 78.469336][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.469998][ T5098] dump_stack+0x1c/0x5c [ 78.470585][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.471420][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.472084][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.472779][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.473396][ T5098] inet_sendmsg+0x154/0x284 [ 78.474103][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.474786][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.475528][ T5098] invoke_syscall+0x98/0x2b8 [ 78.476151][ T5098] el0_svc_common+0x138/0x258 [ 78.476840][ T5098] do_el0_svc+0x58/0x14c [ 78.477482][ T5098] el0_svc+0x78/0x1e0 [ 78.478098][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.478789][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.480018][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.481627][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.482702][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.484123][ T5098] Call trace: [ 78.484593][ T5098] dump_backtrace+0x0/0x43c [ 78.485264][ T5098] show_stack+0x2c/0x3c [ 78.485853][ T5098] __dump_stack+0x30/0x40 [ 78.486482][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.487092][ T5098] dump_stack+0x1c/0x5c [ 78.487678][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.488496][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.489156][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.489839][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.490474][ T5098] inet_sendmsg+0x154/0x284 [ 78.491170][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.491844][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.492524][ T5098] invoke_syscall+0x98/0x2b8 [ 78.493214][ T5098] el0_svc_common+0x138/0x258 [ 78.493836][ T5098] do_el0_svc+0x58/0x14c [ 78.494431][ T5098] el0_svc+0x78/0x1e0 [ 78.494981][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.495715][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.497051][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.499246][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.500269][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.501778][ T5098] Call trace: [ 78.502280][ T5098] dump_backtrace+0x0/0x43c [ 78.502946][ T5098] show_stack+0x2c/0x3c [ 78.503585][ T5098] __dump_stack+0x30/0x40 [ 78.504252][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.504931][ T5098] dump_stack+0x1c/0x5c [ 78.505534][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.506356][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.507082][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.507735][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.508444][ T5098] inet_sendmsg+0x154/0x284 [ 78.509111][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.509737][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.510392][ T5098] invoke_syscall+0x98/0x2b8 [ 78.511051][ T5098] el0_svc_common+0x138/0x258 [ 78.511700][ T5098] do_el0_svc+0x58/0x14c [ 78.512279][ T5098] el0_svc+0x78/0x1e0 [ 78.512851][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.513567][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.515071][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.516795][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.517878][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.519304][ T5098] Call trace: [ 78.519747][ T5098] dump_backtrace+0x0/0x43c [ 78.520329][ T5098] show_stack+0x2c/0x3c [ 78.520926][ T5098] __dump_stack+0x30/0x40 [ 78.521542][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.522196][ T5098] dump_stack+0x1c/0x5c [ 78.522776][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.523630][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.524289][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.524970][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.525626][ T5098] inet_sendmsg+0x154/0x284 [ 78.526327][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.526983][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.527695][ T5098] invoke_syscall+0x98/0x2b8 [ 78.528368][ T5098] el0_svc_common+0x138/0x258 [ 78.529048][ T5098] do_el0_svc+0x58/0x14c [ 78.529675][ T5098] el0_svc+0x78/0x1e0 [ 78.530276][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.530998][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.533194][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.536430][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.537596][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.539133][ T5098] Call trace: [ 78.539614][ T5098] dump_backtrace+0x0/0x43c [ 78.540328][ T5098] show_stack+0x2c/0x3c [ 78.540902][ T5098] __dump_stack+0x30/0x40 [ 78.541562][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.542221][ T5098] dump_stack+0x1c/0x5c [ 78.542814][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.543594][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.544334][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.545023][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.545668][ T5098] inet_sendmsg+0x154/0x284 [ 78.546333][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.546950][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.547634][ T5098] invoke_syscall+0x98/0x2b8 [ 78.548290][ T5098] el0_svc_common+0x138/0x258 [ 78.548992][ T5098] do_el0_svc+0x58/0x14c [ 78.549588][ T5098] el0_svc+0x78/0x1e0 [ 78.550173][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.550913][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.551902][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.553535][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.554542][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.555932][ T5098] Call trace: [ 78.556360][ T5098] dump_backtrace+0x0/0x43c [ 78.556950][ T5098] show_stack+0x2c/0x3c [ 78.557509][ T5098] __dump_stack+0x30/0x40 [ 78.558141][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.558795][ T5098] dump_stack+0x1c/0x5c [ 78.559382][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.560145][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.560819][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.561453][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.562123][ T5098] inet_sendmsg+0x154/0x284 [ 78.562774][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.563432][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.564120][ T5098] invoke_syscall+0x98/0x2b8 [ 78.564740][ T5098] el0_svc_common+0x138/0x258 [ 78.565430][ T5098] do_el0_svc+0x58/0x14c [ 78.566028][ T5098] el0_svc+0x78/0x1e0 [ 78.566610][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.567329][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.568267][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.570040][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.571098][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.572531][ T5098] Call trace: [ 78.573005][ T5098] dump_backtrace+0x0/0x43c [ 78.573680][ T5098] show_stack+0x2c/0x3c [ 78.574278][ T5098] __dump_stack+0x30/0x40 [ 78.574922][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.575615][ T5098] dump_stack+0x1c/0x5c [ 78.576228][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.577109][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.577900][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.578623][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.579303][ T5098] inet_sendmsg+0x154/0x284 [ 78.579960][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.580715][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.581445][ T5098] invoke_syscall+0x98/0x2b8 [ 78.582148][ T5098] el0_svc_common+0x138/0x258 [ 78.582893][ T5098] do_el0_svc+0x58/0x14c [ 78.583482][ T5098] el0_svc+0x78/0x1e0 [ 78.584065][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.584795][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.585707][ T5098] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.587226][ T5098] CPU: 0 PID: 5098 Comm: syz.0.29 Not tainted syzkaller #0 [ 78.588295][ T5098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.589722][ T5098] Call trace: [ 78.590243][ T5098] dump_backtrace+0x0/0x43c [ 78.590915][ T5098] show_stack+0x2c/0x3c [ 78.591439][ T5098] __dump_stack+0x30/0x40 [ 78.592005][ T5098] dump_stack_lvl+0xf8/0x160 [ 78.592696][ T5098] dump_stack+0x1c/0x5c [ 78.593285][ T5098] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.594029][ T5098] dccp_xmit_packet+0x298/0x448 [ 78.594764][ T5098] dccp_write_xmit+0x118/0x1d0 [ 78.595468][ T5098] dccp_sendmsg+0x538/0x8a8 [ 78.596127][ T5098] inet_sendmsg+0x154/0x284 [ 78.596716][ T5098] __sys_sendto+0x2e8/0x3d8 [ 78.597355][ T5098] __arm64_sys_sendto+0xd8/0xf8 [ 78.598067][ T5098] invoke_syscall+0x98/0x2b8 [ 78.598677][ T5098] el0_svc_common+0x138/0x258 [ 78.599359][ T5098] do_el0_svc+0x58/0x14c [ 78.599985][ T5098] el0_svc+0x78/0x1e0 [ 78.600548][ T5098] el0t_64_sync_handler+0xcc/0xe4 [ 78.601287][ T5098] el0t_64_sync+0x1a0/0x1a4 [ 78.620105][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.621971][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.623077][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.624646][ T5100] Call trace: [ 78.625133][ T5100] dump_backtrace+0x0/0x43c [ 78.625939][ T5100] show_stack+0x2c/0x3c [ 78.626635][ T5100] __dump_stack+0x30/0x40 [ 78.627295][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.628015][ T5100] dump_stack+0x1c/0x5c [ 78.628675][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.629558][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.630255][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.630940][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.631577][ T5100] inet_sendmsg+0x154/0x284 [ 78.632278][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.632920][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.633616][ T5100] invoke_syscall+0x98/0x2b8 [ 78.634261][ T5100] el0_svc_common+0x138/0x258 [ 78.634906][ T5100] do_el0_svc+0x58/0x14c [ 78.635510][ T5100] el0_svc+0x78/0x1e0 [ 78.636092][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.636833][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.638018][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.639551][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.640541][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.641943][ T5100] Call trace: [ 78.642396][ T5100] dump_backtrace+0x0/0x43c [ 78.643023][ T5100] show_stack+0x2c/0x3c [ 78.643593][ T5100] __dump_stack+0x30/0x40 [ 78.644242][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.644931][ T5100] dump_stack+0x1c/0x5c [ 78.645558][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.646364][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.647105][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.647825][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.648470][ T5100] inet_sendmsg+0x154/0x284 [ 78.649028][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.649668][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.650339][ T5100] invoke_syscall+0x98/0x2b8 [ 78.650993][ T5100] el0_svc_common+0x138/0x258 [ 78.651840][ T5100] do_el0_svc+0x58/0x14c [ 78.652534][ T5100] el0_svc+0x78/0x1e0 [ 78.653125][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.653961][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.655107][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.656797][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.657860][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.659309][ T5100] Call trace: [ 78.659773][ T5100] dump_backtrace+0x0/0x43c [ 78.660419][ T5100] show_stack+0x2c/0x3c [ 78.661017][ T5100] __dump_stack+0x30/0x40 [ 78.661604][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.662237][ T5100] dump_stack+0x1c/0x5c [ 78.662832][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.663601][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.664401][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.665119][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.665773][ T5100] inet_sendmsg+0x154/0x284 [ 78.666433][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.667094][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.667790][ T5100] invoke_syscall+0x98/0x2b8 [ 78.668418][ T5100] el0_svc_common+0x138/0x258 [ 78.669082][ T5100] do_el0_svc+0x58/0x14c [ 78.669766][ T5100] el0_svc+0x78/0x1e0 [ 78.670344][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.671024][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.672092][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.673572][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.674695][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.676143][ T5100] Call trace: [ 78.676634][ T5100] dump_backtrace+0x0/0x43c [ 78.677272][ T5100] show_stack+0x2c/0x3c [ 78.677880][ T5100] __dump_stack+0x30/0x40 [ 78.678592][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.679296][ T5100] dump_stack+0x1c/0x5c [ 78.679891][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.680656][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.681312][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.682013][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.682639][ T5100] inet_sendmsg+0x154/0x284 [ 78.683305][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.684033][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.684747][ T5100] invoke_syscall+0x98/0x2b8 [ 78.685434][ T5100] el0_svc_common+0x138/0x258 [ 78.686113][ T5100] do_el0_svc+0x58/0x14c [ 78.686755][ T5100] el0_svc+0x78/0x1e0 [ 78.687337][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.688198][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.690046][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.691752][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.692860][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.694384][ T5100] Call trace: [ 78.694914][ T5100] dump_backtrace+0x0/0x43c [ 78.695607][ T5100] show_stack+0x2c/0x3c [ 78.696228][ T5100] __dump_stack+0x30/0x40 [ 78.696873][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.697529][ T5100] dump_stack+0x1c/0x5c [ 78.698155][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.698931][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.699596][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.700288][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.700966][ T5100] inet_sendmsg+0x154/0x284 [ 78.701655][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.702343][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.703092][ T5100] invoke_syscall+0x98/0x2b8 [ 78.703835][ T5100] el0_svc_common+0x138/0x258 [ 78.704563][ T5100] do_el0_svc+0x58/0x14c [ 78.705170][ T5100] el0_svc+0x78/0x1e0 [ 78.705797][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.706513][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.707384][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.708892][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.709918][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.711311][ T5100] Call trace: [ 78.711777][ T5100] dump_backtrace+0x0/0x43c [ 78.712406][ T5100] show_stack+0x2c/0x3c [ 78.712968][ T5100] __dump_stack+0x30/0x40 [ 78.713535][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.714181][ T5100] dump_stack+0x1c/0x5c [ 78.714729][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.715627][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.716453][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.717283][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.717963][ T5100] inet_sendmsg+0x154/0x284 [ 78.718670][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.719353][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.720147][ T5100] invoke_syscall+0x98/0x2b8 [ 78.720756][ T5100] el0_svc_common+0x138/0x258 [ 78.721463][ T5100] do_el0_svc+0x58/0x14c [ 78.722098][ T5100] el0_svc+0x78/0x1e0 [ 78.722717][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.723426][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.724706][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.726284][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.727239][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.728640][ T5100] Call trace: [ 78.729212][ T5100] dump_backtrace+0x0/0x43c [ 78.729810][ T5100] show_stack+0x2c/0x3c [ 78.730418][ T5100] __dump_stack+0x30/0x40 [ 78.731014][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.731653][ T5100] dump_stack+0x1c/0x5c [ 78.732276][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.733008][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.733666][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.734355][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.734966][ T5100] inet_sendmsg+0x154/0x284 [ 78.735606][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.736305][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.737010][ T5100] invoke_syscall+0x98/0x2b8 [ 78.737643][ T5100] el0_svc_common+0x138/0x258 [ 78.738293][ T5100] do_el0_svc+0x58/0x14c [ 78.738892][ T5100] el0_svc+0x78/0x1e0 [ 78.739461][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.740171][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.741086][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.742592][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.743589][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.744952][ T5100] Call trace: [ 78.745400][ T5100] dump_backtrace+0x0/0x43c [ 78.746071][ T5100] show_stack+0x2c/0x3c [ 78.746697][ T5100] __dump_stack+0x30/0x40 [ 78.747317][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.747968][ T5100] dump_stack+0x1c/0x5c [ 78.748574][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.749310][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.750053][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.750778][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.751432][ T5100] inet_sendmsg+0x154/0x284 [ 78.752119][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.752748][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.753429][ T5100] invoke_syscall+0x98/0x2b8 [ 78.754100][ T5100] el0_svc_common+0x138/0x258 [ 78.754788][ T5100] do_el0_svc+0x58/0x14c [ 78.755443][ T5100] el0_svc+0x78/0x1e0 [ 78.755995][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.756718][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.758388][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.760065][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.761180][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.762713][ T5100] Call trace: [ 78.763192][ T5100] dump_backtrace+0x0/0x43c [ 78.763832][ T5100] show_stack+0x2c/0x3c [ 78.764411][ T5100] __dump_stack+0x30/0x40 [ 78.765051][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.765710][ T5100] dump_stack+0x1c/0x5c [ 78.766337][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.767142][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.767929][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.768586][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.769238][ T5100] inet_sendmsg+0x154/0x284 [ 78.769852][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.770528][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.771253][ T5100] invoke_syscall+0x98/0x2b8 [ 78.771896][ T5100] el0_svc_common+0x138/0x258 [ 78.772578][ T5100] do_el0_svc+0x58/0x14c [ 78.773187][ T5100] el0_svc+0x78/0x1e0 [ 78.773773][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.774509][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.775574][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.777186][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.778346][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.779874][ T5100] Call trace: [ 78.780340][ T5100] dump_backtrace+0x0/0x43c [ 78.780977][ T5100] show_stack+0x2c/0x3c [ 78.781624][ T5100] __dump_stack+0x30/0x40 [ 78.782247][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.782970][ T5100] dump_stack+0x1c/0x5c [ 78.783649][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.784439][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.785136][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.785829][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.786430][ T5100] inet_sendmsg+0x154/0x284 [ 78.787090][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.787755][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.788462][ T5100] invoke_syscall+0x98/0x2b8 [ 78.789109][ T5100] el0_svc_common+0x138/0x258 [ 78.789791][ T5100] do_el0_svc+0x58/0x14c [ 78.790430][ T5100] el0_svc+0x78/0x1e0 [ 78.790976][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.791733][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.792564][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.794109][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.795210][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.796581][ T5100] Call trace: [ 78.797052][ T5100] dump_backtrace+0x0/0x43c [ 78.797754][ T5100] show_stack+0x2c/0x3c [ 78.798341][ T5100] __dump_stack+0x30/0x40 [ 78.798961][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.799622][ T5100] dump_stack+0x1c/0x5c [ 78.800211][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.800915][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.801576][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.802240][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.802898][ T5100] inet_sendmsg+0x154/0x284 [ 78.803571][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.804239][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.804891][ T5100] invoke_syscall+0x98/0x2b8 [ 78.805554][ T5100] el0_svc_common+0x138/0x258 [ 78.806166][ T5100] do_el0_svc+0x58/0x14c [ 78.806770][ T5100] el0_svc+0x78/0x1e0 [ 78.807354][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.808095][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.809001][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.810597][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.811667][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.813176][ T5100] Call trace: [ 78.813618][ T5100] dump_backtrace+0x0/0x43c [ 78.814259][ T5100] show_stack+0x2c/0x3c [ 78.814864][ T5100] __dump_stack+0x30/0x40 [ 78.815478][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.816115][ T5100] dump_stack+0x1c/0x5c [ 78.816738][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.817501][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.818164][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.818836][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.819444][ T5100] inet_sendmsg+0x154/0x284 [ 78.820060][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.820676][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.821494][ T5100] invoke_syscall+0x98/0x2b8 [ 78.822218][ T5100] el0_svc_common+0x138/0x258 [ 78.822927][ T5100] do_el0_svc+0x58/0x14c [ 78.823555][ T5100] el0_svc+0x78/0x1e0 [ 78.824105][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.824802][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.826783][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.828488][ T5100] CPU: 0 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.829581][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.830983][ T5100] Call trace: [ 78.831444][ T5100] dump_backtrace+0x0/0x43c [ 78.832166][ T5100] show_stack+0x2c/0x3c [ 78.832798][ T5100] __dump_stack+0x30/0x40 [ 78.833440][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.834121][ T5100] dump_stack+0x1c/0x5c [ 78.834721][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.835524][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.836241][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.837016][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.837697][ T5100] inet_sendmsg+0x154/0x284 [ 78.838406][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.839098][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.839781][ T5100] invoke_syscall+0x98/0x2b8 [ 78.840453][ T5100] el0_svc_common+0x138/0x258 [ 78.841084][ T5100] do_el0_svc+0x58/0x14c [ 78.841757][ T5100] el0_svc+0x78/0x1e0 [ 78.842368][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.843141][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.845203][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.846832][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.847864][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.849354][ T5100] Call trace: [ 78.849822][ T5100] dump_backtrace+0x0/0x43c [ 78.850457][ T5100] show_stack+0x2c/0x3c [ 78.851009][ T5100] __dump_stack+0x30/0x40 [ 78.851625][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.852238][ T5100] dump_stack+0x1c/0x5c [ 78.852812][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.853607][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.854306][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.854992][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.855617][ T5100] inet_sendmsg+0x154/0x284 [ 78.856252][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.856880][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.857563][ T5100] invoke_syscall+0x98/0x2b8 [ 78.858205][ T5100] el0_svc_common+0x138/0x258 [ 78.858912][ T5100] do_el0_svc+0x58/0x14c [ 78.859543][ T5100] el0_svc+0x78/0x1e0 [ 78.860128][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.860822][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.861702][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.863204][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.864244][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.865651][ T5100] Call trace: [ 78.866155][ T5100] dump_backtrace+0x0/0x43c [ 78.866824][ T5100] show_stack+0x2c/0x3c [ 78.867440][ T5100] __dump_stack+0x30/0x40 [ 78.868086][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.868768][ T5100] dump_stack+0x1c/0x5c [ 78.869371][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.870170][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.870846][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.871526][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.872205][ T5100] inet_sendmsg+0x154/0x284 [ 78.872860][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.873539][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.874216][ T5100] invoke_syscall+0x98/0x2b8 [ 78.874893][ T5100] el0_svc_common+0x138/0x258 [ 78.875604][ T5100] do_el0_svc+0x58/0x14c [ 78.876189][ T5100] el0_svc+0x78/0x1e0 [ 78.876863][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.877625][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.879651][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.881453][ T5100] CPU: 0 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.882358][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.883774][ T5100] Call trace: [ 78.884206][ T5100] dump_backtrace+0x0/0x43c [ 78.884815][ T5100] show_stack+0x2c/0x3c [ 78.885411][ T5100] __dump_stack+0x30/0x40 [ 78.886024][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.886683][ T5100] dump_stack+0x1c/0x5c [ 78.887257][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.888002][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.888618][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.889247][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.889960][ T5100] inet_sendmsg+0x154/0x284 [ 78.890708][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.891410][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.892125][ T5100] invoke_syscall+0x98/0x2b8 [ 78.892777][ T5100] el0_svc_common+0x138/0x258 [ 78.893426][ T5100] do_el0_svc+0x58/0x14c [ 78.894015][ T5100] el0_svc+0x78/0x1e0 [ 78.894582][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.895288][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.897334][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.899005][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.900025][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.901480][ T5100] Call trace: [ 78.901938][ T5100] dump_backtrace+0x0/0x43c [ 78.902648][ T5100] show_stack+0x2c/0x3c [ 78.903232][ T5100] __dump_stack+0x30/0x40 [ 78.903846][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.904507][ T5100] dump_stack+0x1c/0x5c [ 78.905125][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.905950][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.906661][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.907344][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.907970][ T5100] inet_sendmsg+0x154/0x284 [ 78.908595][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.909243][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.909996][ T5100] invoke_syscall+0x98/0x2b8 [ 78.910730][ T5100] el0_svc_common+0x138/0x258 [ 78.911453][ T5100] do_el0_svc+0x58/0x14c [ 78.912052][ T5100] el0_svc+0x78/0x1e0 [ 78.912627][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.913329][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.914536][ T5100] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.916152][ T5100] CPU: 1 PID: 5100 Comm: syz.0.30 Not tainted syzkaller #0 [ 78.917266][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.918743][ T5100] Call trace: [ 78.919230][ T5100] dump_backtrace+0x0/0x43c [ 78.919881][ T5100] show_stack+0x2c/0x3c [ 78.920441][ T5100] __dump_stack+0x30/0x40 [ 78.921020][ T5100] dump_stack_lvl+0xf8/0x160 [ 78.921612][ T5100] dump_stack+0x1c/0x5c [ 78.922180][ T5100] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.922968][ T5100] dccp_xmit_packet+0x298/0x448 [ 78.923649][ T5100] dccp_write_xmit+0x118/0x1d0 [ 78.924285][ T5100] dccp_sendmsg+0x538/0x8a8 [ 78.924987][ T5100] inet_sendmsg+0x154/0x284 [ 78.925670][ T5100] __sys_sendto+0x2e8/0x3d8 [ 78.926333][ T5100] __arm64_sys_sendto+0xd8/0xf8 [ 78.927046][ T5100] invoke_syscall+0x98/0x2b8 [ 78.927725][ T5100] el0_svc_common+0x138/0x258 [ 78.928389][ T5100] do_el0_svc+0x58/0x14c [ 78.928961][ T5100] el0_svc+0x78/0x1e0 [ 78.929492][ T5100] el0t_64_sync_handler+0xcc/0xe4 [ 78.930215][ T5100] el0t_64_sync+0x1a0/0x1a4 [ 78.948632][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.950373][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 78.951335][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.952687][ T5102] Call trace: [ 78.953130][ T5102] dump_backtrace+0x0/0x43c [ 78.953735][ T5102] show_stack+0x2c/0x3c [ 78.954326][ T5102] __dump_stack+0x30/0x40 [ 78.954965][ T5102] dump_stack_lvl+0xf8/0x160 [ 78.955616][ T5102] dump_stack+0x1c/0x5c [ 78.956202][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.956966][ T5102] dccp_xmit_packet+0x298/0x448 [ 78.957624][ T5102] dccp_write_xmit+0x118/0x1d0 [ 78.958252][ T5102] dccp_sendmsg+0x538/0x8a8 [ 78.958868][ T5102] inet_sendmsg+0x154/0x284 [ 78.959546][ T5102] __sys_sendto+0x2e8/0x3d8 [ 78.960129][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 78.960866][ T5102] invoke_syscall+0x98/0x2b8 [ 78.961530][ T5102] el0_svc_common+0x138/0x258 [ 78.962189][ T5102] do_el0_svc+0x58/0x14c [ 78.962801][ T5102] el0_svc+0x78/0x1e0 [ 78.963366][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 78.964046][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 78.964864][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.966281][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 78.967185][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.968547][ T5102] Call trace: [ 78.969072][ T5102] dump_backtrace+0x0/0x43c [ 78.969775][ T5102] show_stack+0x2c/0x3c [ 78.970451][ T5102] __dump_stack+0x30/0x40 [ 78.971033][ T5102] dump_stack_lvl+0xf8/0x160 [ 78.971701][ T5102] dump_stack+0x1c/0x5c [ 78.972286][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.973086][ T5102] dccp_xmit_packet+0x298/0x448 [ 78.973768][ T5102] dccp_write_xmit+0x118/0x1d0 [ 78.974378][ T5102] dccp_sendmsg+0x538/0x8a8 [ 78.975031][ T5102] inet_sendmsg+0x154/0x284 [ 78.975671][ T5102] __sys_sendto+0x2e8/0x3d8 [ 78.976334][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 78.976953][ T5102] invoke_syscall+0x98/0x2b8 [ 78.977595][ T5102] el0_svc_common+0x138/0x258 [ 78.978259][ T5102] do_el0_svc+0x58/0x14c [ 78.978828][ T5102] el0_svc+0x78/0x1e0 [ 78.979427][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 78.980186][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 78.981634][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 78.983322][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 78.984399][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.985861][ T5102] Call trace: [ 78.986321][ T5102] dump_backtrace+0x0/0x43c [ 78.986943][ T5102] show_stack+0x2c/0x3c [ 78.987572][ T5102] __dump_stack+0x30/0x40 [ 78.988200][ T5102] dump_stack_lvl+0xf8/0x160 [ 78.988864][ T5102] dump_stack+0x1c/0x5c [ 78.989439][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 78.990208][ T5102] dccp_xmit_packet+0x298/0x448 [ 78.990918][ T5102] dccp_write_xmit+0x118/0x1d0 [ 78.991587][ T5102] dccp_sendmsg+0x538/0x8a8 [ 78.992210][ T5102] inet_sendmsg+0x154/0x284 [ 78.992809][ T5102] __sys_sendto+0x2e8/0x3d8 [ 78.993490][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 78.994178][ T5102] invoke_syscall+0x98/0x2b8 [ 78.994821][ T5102] el0_svc_common+0x138/0x258 [ 78.995501][ T5102] do_el0_svc+0x58/0x14c [ 78.996081][ T5102] el0_svc+0x78/0x1e0 [ 78.996673][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 78.997391][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 78.998700][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.000134][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.001167][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.002446][ T5102] Call trace: [ 79.002917][ T5102] dump_backtrace+0x0/0x43c [ 79.003630][ T5102] show_stack+0x2c/0x3c [ 79.004292][ T5102] __dump_stack+0x30/0x40 [ 79.005000][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.005713][ T5102] dump_stack+0x1c/0x5c [ 79.006344][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.007171][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.007886][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.008578][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.009222][ T5102] inet_sendmsg+0x154/0x284 [ 79.009842][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.010465][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.011128][ T5102] invoke_syscall+0x98/0x2b8 [ 79.011768][ T5102] el0_svc_common+0x138/0x258 [ 79.012400][ T5102] do_el0_svc+0x58/0x14c [ 79.012978][ T5102] el0_svc+0x78/0x1e0 [ 79.013526][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.014233][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.015170][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.016761][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.017803][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.019201][ T5102] Call trace: [ 79.019658][ T5102] dump_backtrace+0x0/0x43c [ 79.020286][ T5102] show_stack+0x2c/0x3c [ 79.020851][ T5102] __dump_stack+0x30/0x40 [ 79.021460][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.022094][ T5102] dump_stack+0x1c/0x5c [ 79.022670][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.023410][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.024080][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.024761][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.025381][ T5102] inet_sendmsg+0x154/0x284 [ 79.026022][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.026658][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.027309][ T5102] invoke_syscall+0x98/0x2b8 [ 79.027934][ T5102] el0_svc_common+0x138/0x258 [ 79.028584][ T5102] do_el0_svc+0x58/0x14c [ 79.029177][ T5102] el0_svc+0x78/0x1e0 [ 79.029722][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.030388][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.031177][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.032933][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.033994][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.035594][ T5102] Call trace: [ 79.036054][ T5102] dump_backtrace+0x0/0x43c [ 79.036732][ T5102] show_stack+0x2c/0x3c [ 79.037368][ T5102] __dump_stack+0x30/0x40 [ 79.038046][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.038707][ T5102] dump_stack+0x1c/0x5c [ 79.039357][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.040186][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.040871][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.041564][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.042211][ T5102] inet_sendmsg+0x154/0x284 [ 79.042832][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.043503][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.044257][ T5102] invoke_syscall+0x98/0x2b8 [ 79.044935][ T5102] el0_svc_common+0x138/0x258 [ 79.045541][ T5102] do_el0_svc+0x58/0x14c [ 79.046116][ T5102] el0_svc+0x78/0x1e0 [ 79.046682][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.047394][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.048297][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.049787][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.050892][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.052275][ T5102] Call trace: [ 79.052740][ T5102] dump_backtrace+0x0/0x43c [ 79.053389][ T5102] show_stack+0x2c/0x3c [ 79.053951][ T5102] __dump_stack+0x30/0x40 [ 79.054593][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.055246][ T5102] dump_stack+0x1c/0x5c [ 79.055856][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.056600][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.057315][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.057991][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.058612][ T5102] inet_sendmsg+0x154/0x284 [ 79.059262][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.059963][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.060612][ T5102] invoke_syscall+0x98/0x2b8 [ 79.061312][ T5102] el0_svc_common+0x138/0x258 [ 79.061992][ T5102] do_el0_svc+0x58/0x14c [ 79.062646][ T5102] el0_svc+0x78/0x1e0 [ 79.063255][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.063981][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.065398][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.067011][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.068015][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.069413][ T5102] Call trace: [ 79.069893][ T5102] dump_backtrace+0x0/0x43c [ 79.070531][ T5102] show_stack+0x2c/0x3c [ 79.071165][ T5102] __dump_stack+0x30/0x40 [ 79.071840][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.072511][ T5102] dump_stack+0x1c/0x5c [ 79.073083][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.073955][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.074691][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.075441][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.076113][ T5102] inet_sendmsg+0x154/0x284 [ 79.076760][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.077463][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.078187][ T5102] invoke_syscall+0x98/0x2b8 [ 79.078809][ T5102] el0_svc_common+0x138/0x258 [ 79.079492][ T5102] do_el0_svc+0x58/0x14c [ 79.080116][ T5102] el0_svc+0x78/0x1e0 [ 79.080685][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.081373][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.082687][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.084422][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.085427][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.086750][ T5102] Call trace: [ 79.087178][ T5102] dump_backtrace+0x0/0x43c [ 79.087858][ T5102] show_stack+0x2c/0x3c [ 79.088434][ T5102] __dump_stack+0x30/0x40 [ 79.089030][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.089628][ T5102] dump_stack+0x1c/0x5c [ 79.090230][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.091007][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.091719][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.092467][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.093061][ T5102] inet_sendmsg+0x154/0x284 [ 79.093705][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.094396][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.095087][ T5102] invoke_syscall+0x98/0x2b8 [ 79.095764][ T5102] el0_svc_common+0x138/0x258 [ 79.096436][ T5102] do_el0_svc+0x58/0x14c [ 79.097050][ T5102] el0_svc+0x78/0x1e0 [ 79.097712][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.098550][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.099478][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.101081][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.102068][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.103437][ T5102] Call trace: [ 79.103915][ T5102] dump_backtrace+0x0/0x43c [ 79.104579][ T5102] show_stack+0x2c/0x3c [ 79.105171][ T5102] __dump_stack+0x30/0x40 [ 79.105843][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.106536][ T5102] dump_stack+0x1c/0x5c [ 79.107231][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.108031][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.108789][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.109499][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.110203][ T5102] inet_sendmsg+0x154/0x284 [ 79.110874][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.111493][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.112173][ T5102] invoke_syscall+0x98/0x2b8 [ 79.112907][ T5102] el0_svc_common+0x138/0x258 [ 79.113552][ T5102] do_el0_svc+0x58/0x14c [ 79.114198][ T5102] el0_svc+0x78/0x1e0 [ 79.114738][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.115406][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.116261][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.117749][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.118790][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.120175][ T5102] Call trace: [ 79.120632][ T5102] dump_backtrace+0x0/0x43c [ 79.121307][ T5102] show_stack+0x2c/0x3c [ 79.121873][ T5102] __dump_stack+0x30/0x40 [ 79.122500][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.123092][ T5102] dump_stack+0x1c/0x5c [ 79.123666][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.124387][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.125056][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.125690][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.126286][ T5102] inet_sendmsg+0x154/0x284 [ 79.126887][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.127520][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.128216][ T5102] invoke_syscall+0x98/0x2b8 [ 79.128812][ T5102] el0_svc_common+0x138/0x258 [ 79.129459][ T5102] do_el0_svc+0x58/0x14c [ 79.130075][ T5102] el0_svc+0x78/0x1e0 [ 79.130637][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.131326][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.132190][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.133727][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.134703][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.136084][ T5102] Call trace: [ 79.136535][ T5102] dump_backtrace+0x0/0x43c [ 79.137187][ T5102] show_stack+0x2c/0x3c [ 79.137879][ T5102] __dump_stack+0x30/0x40 [ 79.138562][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.139227][ T5102] dump_stack+0x1c/0x5c [ 79.139832][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.140607][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.141330][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.141984][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.142599][ T5102] inet_sendmsg+0x154/0x284 [ 79.143212][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.143841][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.144554][ T5102] invoke_syscall+0x98/0x2b8 [ 79.145212][ T5102] el0_svc_common+0x138/0x258 [ 79.145934][ T5102] do_el0_svc+0x58/0x14c [ 79.146568][ T5102] el0_svc+0x78/0x1e0 [ 79.147119][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.147857][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.148742][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.150187][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.151219][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.152571][ T5102] Call trace: [ 79.152996][ T5102] dump_backtrace+0x0/0x43c [ 79.153624][ T5102] show_stack+0x2c/0x3c [ 79.154187][ T5102] __dump_stack+0x30/0x40 [ 79.154802][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.155430][ T5102] dump_stack+0x1c/0x5c [ 79.156038][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.156804][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.157516][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.158237][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.158878][ T5102] inet_sendmsg+0x154/0x284 [ 79.159550][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.160191][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.160903][ T5102] invoke_syscall+0x98/0x2b8 [ 79.161511][ T5102] el0_svc_common+0x138/0x258 [ 79.162185][ T5102] do_el0_svc+0x58/0x14c [ 79.162817][ T5102] el0_svc+0x78/0x1e0 [ 79.163340][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.164061][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.164854][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.166577][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.167626][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.169142][ T5102] Call trace: [ 79.169605][ T5102] dump_backtrace+0x0/0x43c [ 79.170237][ T5102] show_stack+0x2c/0x3c [ 79.170819][ T5102] __dump_stack+0x30/0x40 [ 79.171438][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.172072][ T5102] dump_stack+0x1c/0x5c [ 79.172606][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.173314][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.174064][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.174726][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.175333][ T5102] inet_sendmsg+0x154/0x284 [ 79.175986][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.176596][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.177320][ T5102] invoke_syscall+0x98/0x2b8 [ 79.177960][ T5102] el0_svc_common+0x138/0x258 [ 79.178575][ T5102] do_el0_svc+0x58/0x14c [ 79.179199][ T5102] el0_svc+0x78/0x1e0 [ 79.179836][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.180570][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.181963][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.183693][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.184789][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.186319][ T5102] Call trace: [ 79.186769][ T5102] dump_backtrace+0x0/0x43c [ 79.187411][ T5102] show_stack+0x2c/0x3c [ 79.188020][ T5102] __dump_stack+0x30/0x40 [ 79.188689][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.189402][ T5102] dump_stack+0x1c/0x5c [ 79.190033][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.190825][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.191525][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.192201][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.192876][ T5102] inet_sendmsg+0x154/0x284 [ 79.193544][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.194178][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.194900][ T5102] invoke_syscall+0x98/0x2b8 [ 79.195591][ T5102] el0_svc_common+0x138/0x258 [ 79.196290][ T5102] do_el0_svc+0x58/0x14c [ 79.196947][ T5102] el0_svc+0x78/0x1e0 [ 79.197495][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.198227][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.199064][ T5102] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.200552][ T5102] CPU: 1 PID: 5102 Comm: syz.0.31 Not tainted syzkaller #0 [ 79.201594][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.202952][ T5102] Call trace: [ 79.203391][ T5102] dump_backtrace+0x0/0x43c [ 79.204031][ T5102] show_stack+0x2c/0x3c [ 79.204615][ T5102] __dump_stack+0x30/0x40 [ 79.205241][ T5102] dump_stack_lvl+0xf8/0x160 [ 79.205866][ T5102] dump_stack+0x1c/0x5c [ 79.206444][ T5102] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.207191][ T5102] dccp_xmit_packet+0x298/0x448 [ 79.207877][ T5102] dccp_write_xmit+0x118/0x1d0 [ 79.208537][ T5102] dccp_sendmsg+0x538/0x8a8 [ 79.209147][ T5102] inet_sendmsg+0x154/0x284 [ 79.209790][ T5102] __sys_sendto+0x2e8/0x3d8 [ 79.210433][ T5102] __arm64_sys_sendto+0xd8/0xf8 [ 79.211130][ T5102] invoke_syscall+0x98/0x2b8 [ 79.211770][ T5102] el0_svc_common+0x138/0x258 [ 79.212418][ T5102] do_el0_svc+0x58/0x14c [ 79.213006][ T5102] el0_svc+0x78/0x1e0 [ 79.213549][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 79.214230][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 79.235188][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.236801][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.237753][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.239140][ T5104] Call trace: [ 79.239661][ T5104] dump_backtrace+0x0/0x43c [ 79.240271][ T5104] show_stack+0x2c/0x3c [ 79.240847][ T5104] __dump_stack+0x30/0x40 [ 79.241516][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.242139][ T5104] dump_stack+0x1c/0x5c [ 79.242733][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.243452][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.244083][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.244773][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.245366][ T5104] inet_sendmsg+0x154/0x284 [ 79.246007][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.246609][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.247302][ T5104] invoke_syscall+0x98/0x2b8 [ 79.248026][ T5104] el0_svc_common+0x138/0x258 [ 79.248685][ T5104] do_el0_svc+0x58/0x14c [ 79.249356][ T5104] el0_svc+0x78/0x1e0 [ 79.249970][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.250699][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.252006][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.253555][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.254567][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.255907][ T5104] Call trace: [ 79.256382][ T5104] dump_backtrace+0x0/0x43c [ 79.257050][ T5104] show_stack+0x2c/0x3c [ 79.257647][ T5104] __dump_stack+0x30/0x40 [ 79.258277][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.258965][ T5104] dump_stack+0x1c/0x5c [ 79.259534][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.260318][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.261014][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.261693][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.262364][ T5104] inet_sendmsg+0x154/0x284 [ 79.263002][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.263664][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.264342][ T5104] invoke_syscall+0x98/0x2b8 [ 79.264991][ T5104] el0_svc_common+0x138/0x258 [ 79.265682][ T5104] do_el0_svc+0x58/0x14c [ 79.266329][ T5104] el0_svc+0x78/0x1e0 [ 79.266876][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.267554][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.268370][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.270017][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.271074][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.272476][ T5104] Call trace: [ 79.272962][ T5104] dump_backtrace+0x0/0x43c [ 79.273651][ T5104] show_stack+0x2c/0x3c [ 79.274225][ T5104] __dump_stack+0x30/0x40 [ 79.274826][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.275522][ T5104] dump_stack+0x1c/0x5c [ 79.276164][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.276953][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.277697][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.278412][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.279064][ T5104] inet_sendmsg+0x154/0x284 [ 79.279743][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.280337][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.281006][ T5104] invoke_syscall+0x98/0x2b8 [ 79.281650][ T5104] el0_svc_common+0x138/0x258 [ 79.282286][ T5104] do_el0_svc+0x58/0x14c [ 79.282872][ T5104] el0_svc+0x78/0x1e0 [ 79.283383][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.284079][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.284983][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.286648][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.287686][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.289188][ T5104] Call trace: [ 79.289669][ T5104] dump_backtrace+0x0/0x43c [ 79.290281][ T5104] show_stack+0x2c/0x3c [ 79.290887][ T5104] __dump_stack+0x30/0x40 [ 79.291530][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.292147][ T5104] dump_stack+0x1c/0x5c [ 79.292738][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.293468][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.294101][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.294781][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.295417][ T5104] inet_sendmsg+0x154/0x284 [ 79.296020][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.296644][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.297294][ T5104] invoke_syscall+0x98/0x2b8 [ 79.297940][ T5104] el0_svc_common+0x138/0x258 [ 79.298685][ T5104] do_el0_svc+0x58/0x14c [ 79.299284][ T5104] el0_svc+0x78/0x1e0 [ 79.299843][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.300545][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.301598][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.303139][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.304098][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.305473][ T5104] Call trace: [ 79.305988][ T5104] dump_backtrace+0x0/0x43c [ 79.306652][ T5104] show_stack+0x2c/0x3c [ 79.307241][ T5104] __dump_stack+0x30/0x40 [ 79.307858][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.308505][ T5104] dump_stack+0x1c/0x5c [ 79.309126][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.309888][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.310551][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.311239][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.311844][ T5104] inet_sendmsg+0x154/0x284 [ 79.312517][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.313141][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.313857][ T5104] invoke_syscall+0x98/0x2b8 [ 79.314526][ T5104] el0_svc_common+0x138/0x258 [ 79.315260][ T5104] do_el0_svc+0x58/0x14c [ 79.315964][ T5104] el0_svc+0x78/0x1e0 [ 79.316596][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.317388][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.318395][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.320003][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.320987][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.322397][ T5104] Call trace: [ 79.322823][ T5104] dump_backtrace+0x0/0x43c [ 79.323394][ T5104] show_stack+0x2c/0x3c [ 79.323964][ T5104] __dump_stack+0x30/0x40 [ 79.324628][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.325324][ T5104] dump_stack+0x1c/0x5c [ 79.325964][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.326783][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.327472][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.328226][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.328861][ T5104] inet_sendmsg+0x154/0x284 [ 79.329552][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.330210][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.330890][ T5104] invoke_syscall+0x98/0x2b8 [ 79.331525][ T5104] el0_svc_common+0x138/0x258 [ 79.332197][ T5104] do_el0_svc+0x58/0x14c [ 79.332830][ T5104] el0_svc+0x78/0x1e0 [ 79.333380][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.334052][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.334931][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.336568][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.337701][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.339191][ T5104] Call trace: [ 79.339684][ T5104] dump_backtrace+0x0/0x43c [ 79.340300][ T5104] show_stack+0x2c/0x3c [ 79.340964][ T5104] __dump_stack+0x30/0x40 [ 79.341589][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.342235][ T5104] dump_stack+0x1c/0x5c [ 79.342789][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.343484][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.344148][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.344792][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.345415][ T5104] inet_sendmsg+0x154/0x284 [ 79.346061][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.346738][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.347394][ T5104] invoke_syscall+0x98/0x2b8 [ 79.348033][ T5104] el0_svc_common+0x138/0x258 [ 79.348764][ T5104] do_el0_svc+0x58/0x14c [ 79.349350][ T5104] el0_svc+0x78/0x1e0 [ 79.349931][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.350671][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.351434][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.352987][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.353957][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.355406][ T5104] Call trace: [ 79.355883][ T5104] dump_backtrace+0x0/0x43c [ 79.356486][ T5104] show_stack+0x2c/0x3c [ 79.357062][ T5104] __dump_stack+0x30/0x40 [ 79.357663][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.358358][ T5104] dump_stack+0x1c/0x5c [ 79.358915][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.359667][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.360369][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.361042][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.361682][ T5104] inet_sendmsg+0x154/0x284 [ 79.362329][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.363046][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.363764][ T5104] invoke_syscall+0x98/0x2b8 [ 79.364382][ T5104] el0_svc_common+0x138/0x258 [ 79.365052][ T5104] do_el0_svc+0x58/0x14c [ 79.365636][ T5104] el0_svc+0x78/0x1e0 [ 79.366216][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.366919][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.367776][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.369277][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.370294][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.371680][ T5104] Call trace: [ 79.372180][ T5104] dump_backtrace+0x0/0x43c [ 79.372829][ T5104] show_stack+0x2c/0x3c [ 79.373425][ T5104] __dump_stack+0x30/0x40 [ 79.374024][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.374743][ T5104] dump_stack+0x1c/0x5c [ 79.375375][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.376162][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.376860][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.377545][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.378252][ T5104] inet_sendmsg+0x154/0x284 [ 79.378931][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.379567][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.380202][ T5104] invoke_syscall+0x98/0x2b8 [ 79.380813][ T5104] el0_svc_common+0x138/0x258 [ 79.381459][ T5104] do_el0_svc+0x58/0x14c [ 79.382085][ T5104] el0_svc+0x78/0x1e0 [ 79.382642][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.383366][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.384169][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.385861][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.386877][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.388257][ T5104] Call trace: [ 79.388684][ T5104] dump_backtrace+0x0/0x43c [ 79.389270][ T5104] show_stack+0x2c/0x3c [ 79.389828][ T5104] __dump_stack+0x30/0x40 [ 79.390412][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.391051][ T5104] dump_stack+0x1c/0x5c [ 79.391605][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.392395][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.393050][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.393669][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.394273][ T5104] inet_sendmsg+0x154/0x284 [ 79.394897][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.395524][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.396196][ T5104] invoke_syscall+0x98/0x2b8 [ 79.396872][ T5104] el0_svc_common+0x138/0x258 [ 79.397527][ T5104] do_el0_svc+0x58/0x14c [ 79.398100][ T5104] el0_svc+0x78/0x1e0 [ 79.398630][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.399285][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.400294][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.401970][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.403039][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.404533][ T5104] Call trace: [ 79.405006][ T5104] dump_backtrace+0x0/0x43c [ 79.405680][ T5104] show_stack+0x2c/0x3c [ 79.406284][ T5104] __dump_stack+0x30/0x40 [ 79.406935][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.407643][ T5104] dump_stack+0x1c/0x5c [ 79.408248][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.409015][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.409712][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.410425][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.411066][ T5104] inet_sendmsg+0x154/0x284 [ 79.411673][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.412269][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.412951][ T5104] invoke_syscall+0x98/0x2b8 [ 79.413580][ T5104] el0_svc_common+0x138/0x258 [ 79.414229][ T5104] do_el0_svc+0x58/0x14c [ 79.414819][ T5104] el0_svc+0x78/0x1e0 [ 79.415370][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.416085][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.416888][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.418397][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.419408][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.420821][ T5104] Call trace: [ 79.421241][ T5104] dump_backtrace+0x0/0x43c [ 79.421855][ T5104] show_stack+0x2c/0x3c [ 79.422424][ T5104] __dump_stack+0x30/0x40 [ 79.422997][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.423612][ T5104] dump_stack+0x1c/0x5c [ 79.424163][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.424931][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.425582][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.426215][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.426811][ T5104] inet_sendmsg+0x154/0x284 [ 79.427422][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.428021][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.428665][ T5104] invoke_syscall+0x98/0x2b8 [ 79.429277][ T5104] el0_svc_common+0x138/0x258 [ 79.429905][ T5104] do_el0_svc+0x58/0x14c [ 79.430482][ T5104] el0_svc+0x78/0x1e0 [ 79.431032][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.431735][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.432905][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.434582][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.435497][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.436846][ T5104] Call trace: [ 79.437260][ T5104] dump_backtrace+0x0/0x43c [ 79.437836][ T5104] show_stack+0x2c/0x3c [ 79.438362][ T5104] __dump_stack+0x30/0x40 [ 79.438916][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.439505][ T5104] dump_stack+0x1c/0x5c [ 79.440063][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.440788][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.441431][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.442069][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.442665][ T5104] inet_sendmsg+0x154/0x284 [ 79.443263][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.443858][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.444511][ T5104] invoke_syscall+0x98/0x2b8 [ 79.445138][ T5104] el0_svc_common+0x138/0x258 [ 79.445788][ T5104] do_el0_svc+0x58/0x14c [ 79.446390][ T5104] el0_svc+0x78/0x1e0 [ 79.446952][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.447643][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.448445][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.449820][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.450706][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.452018][ T5104] Call trace: [ 79.452427][ T5104] dump_backtrace+0x0/0x43c [ 79.453047][ T5104] show_stack+0x2c/0x3c [ 79.453578][ T5104] __dump_stack+0x30/0x40 [ 79.454146][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.454769][ T5104] dump_stack+0x1c/0x5c [ 79.455310][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.456024][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.456682][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.457341][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.457949][ T5104] inet_sendmsg+0x154/0x284 [ 79.458553][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.459140][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.459786][ T5104] invoke_syscall+0x98/0x2b8 [ 79.460434][ T5104] el0_svc_common+0x138/0x258 [ 79.461078][ T5104] do_el0_svc+0x58/0x14c [ 79.461671][ T5104] el0_svc+0x78/0x1e0 [ 79.462215][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.462929][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.463745][ T5104] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.465679][ T5104] CPU: 0 PID: 5104 Comm: syz.0.32 Not tainted syzkaller #0 [ 79.466707][ T5104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.468060][ T5104] Call trace: [ 79.468615][ T5104] dump_backtrace+0x0/0x43c [ 79.469331][ T5104] show_stack+0x2c/0x3c [ 79.469971][ T5104] __dump_stack+0x30/0x40 [ 79.470624][ T5104] dump_stack_lvl+0xf8/0x160 [ 79.471367][ T5104] dump_stack+0x1c/0x5c [ 79.471987][ T5104] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.472797][ T5104] dccp_xmit_packet+0x298/0x448 [ 79.473437][ T5104] dccp_write_xmit+0x118/0x1d0 [ 79.474120][ T5104] dccp_sendmsg+0x538/0x8a8 [ 79.474754][ T5104] inet_sendmsg+0x154/0x284 [ 79.475409][ T5104] __sys_sendto+0x2e8/0x3d8 [ 79.476066][ T5104] __arm64_sys_sendto+0xd8/0xf8 [ 79.476769][ T5104] invoke_syscall+0x98/0x2b8 [ 79.477449][ T5104] el0_svc_common+0x138/0x258 [ 79.478191][ T5104] do_el0_svc+0x58/0x14c [ 79.478806][ T5104] el0_svc+0x78/0x1e0 [ 79.479409][ T5104] el0t_64_sync_handler+0xcc/0xe4 [ 79.480106][ T5104] el0t_64_sync+0x1a0/0x1a4 [ 79.497145][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.499002][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.500133][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.501674][ T5106] Call trace: [ 79.502199][ T5106] dump_backtrace+0x0/0x43c [ 79.502879][ T5106] show_stack+0x2c/0x3c [ 79.503465][ T5106] __dump_stack+0x30/0x40 [ 79.504102][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.504786][ T5106] dump_stack+0x1c/0x5c [ 79.505433][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.506203][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.506894][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.507586][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.508239][ T5106] inet_sendmsg+0x154/0x284 [ 79.508898][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.509539][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.510259][ T5106] invoke_syscall+0x98/0x2b8 [ 79.510916][ T5106] el0_svc_common+0x138/0x258 [ 79.511567][ T5106] do_el0_svc+0x58/0x14c [ 79.512138][ T5106] el0_svc+0x78/0x1e0 [ 79.512724][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.513445][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.516569][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.518307][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.519431][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.520957][ T5106] Call trace: [ 79.521398][ T5106] dump_backtrace+0x0/0x43c [ 79.522063][ T5106] show_stack+0x2c/0x3c [ 79.522682][ T5106] __dump_stack+0x30/0x40 [ 79.523322][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.523999][ T5106] dump_stack+0x1c/0x5c [ 79.524590][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.525377][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.526048][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.526693][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.527363][ T5106] inet_sendmsg+0x154/0x284 [ 79.527970][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.528599][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.529279][ T5106] invoke_syscall+0x98/0x2b8 [ 79.529926][ T5106] el0_svc_common+0x138/0x258 [ 79.530581][ T5106] do_el0_svc+0x58/0x14c [ 79.531157][ T5106] el0_svc+0x78/0x1e0 [ 79.531707][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.532393][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.533544][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.535172][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.536196][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.537522][ T5106] Call trace: [ 79.537962][ T5106] dump_backtrace+0x0/0x43c [ 79.538638][ T5106] show_stack+0x2c/0x3c [ 79.539198][ T5106] __dump_stack+0x30/0x40 [ 79.539807][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.540440][ T5106] dump_stack+0x1c/0x5c [ 79.541037][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.541855][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.542520][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.543225][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.543899][ T5106] inet_sendmsg+0x154/0x284 [ 79.544528][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.545158][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.545907][ T5106] invoke_syscall+0x98/0x2b8 [ 79.546579][ T5106] el0_svc_common+0x138/0x258 [ 79.547264][ T5106] do_el0_svc+0x58/0x14c [ 79.547896][ T5106] el0_svc+0x78/0x1e0 [ 79.548468][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.549316][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.550259][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.551723][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.552791][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.554207][ T5106] Call trace: [ 79.554688][ T5106] dump_backtrace+0x0/0x43c [ 79.555366][ T5106] show_stack+0x2c/0x3c [ 79.555932][ T5106] __dump_stack+0x30/0x40 [ 79.556577][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.557223][ T5106] dump_stack+0x1c/0x5c [ 79.557774][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.558502][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.559168][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.559827][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.560438][ T5106] inet_sendmsg+0x154/0x284 [ 79.561057][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.561699][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.562385][ T5106] invoke_syscall+0x98/0x2b8 [ 79.562978][ T5106] el0_svc_common+0x138/0x258 [ 79.563675][ T5106] do_el0_svc+0x58/0x14c [ 79.564267][ T5106] el0_svc+0x78/0x1e0 [ 79.564812][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.565531][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.567538][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.569278][ T5106] CPU: 1 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.570282][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.571744][ T5106] Call trace: [ 79.572269][ T5106] dump_backtrace+0x0/0x43c [ 79.572881][ T5106] show_stack+0x2c/0x3c [ 79.573475][ T5106] __dump_stack+0x30/0x40 [ 79.574116][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.574773][ T5106] dump_stack+0x1c/0x5c [ 79.575371][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.576133][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.576829][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.577522][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.578172][ T5106] inet_sendmsg+0x154/0x284 [ 79.578833][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.579525][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.580254][ T5106] invoke_syscall+0x98/0x2b8 [ 79.580893][ T5106] el0_svc_common+0x138/0x258 [ 79.581526][ T5106] do_el0_svc+0x58/0x14c [ 79.582118][ T5106] el0_svc+0x78/0x1e0 [ 79.582683][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.583404][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.585513][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.587320][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.588373][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.589991][ T5106] Call trace: [ 79.590480][ T5106] dump_backtrace+0x0/0x43c [ 79.591128][ T5106] show_stack+0x2c/0x3c [ 79.591751][ T5106] __dump_stack+0x30/0x40 [ 79.592393][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.593039][ T5106] dump_stack+0x1c/0x5c [ 79.593632][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.594474][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.595216][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.595963][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.596617][ T5106] inet_sendmsg+0x154/0x284 [ 79.597283][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.597976][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.598704][ T5106] invoke_syscall+0x98/0x2b8 [ 79.599438][ T5106] el0_svc_common+0x138/0x258 [ 79.600156][ T5106] do_el0_svc+0x58/0x14c [ 79.600735][ T5106] el0_svc+0x78/0x1e0 [ 79.601321][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.602045][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.603026][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.604653][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.605686][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.607070][ T5106] Call trace: [ 79.607526][ T5106] dump_backtrace+0x0/0x43c [ 79.608121][ T5106] show_stack+0x2c/0x3c [ 79.608661][ T5106] __dump_stack+0x30/0x40 [ 79.609228][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.609835][ T5106] dump_stack+0x1c/0x5c [ 79.610364][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.611097][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.611769][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.612458][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.613188][ T5106] inet_sendmsg+0x154/0x284 [ 79.613825][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.614487][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.615250][ T5106] invoke_syscall+0x98/0x2b8 [ 79.615926][ T5106] el0_svc_common+0x138/0x258 [ 79.616563][ T5106] do_el0_svc+0x58/0x14c [ 79.617197][ T5106] el0_svc+0x78/0x1e0 [ 79.617808][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.618522][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.619335][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.620931][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.622024][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.623425][ T5106] Call trace: [ 79.623914][ T5106] dump_backtrace+0x0/0x43c [ 79.624574][ T5106] show_stack+0x2c/0x3c [ 79.625126][ T5106] __dump_stack+0x30/0x40 [ 79.625752][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.626410][ T5106] dump_stack+0x1c/0x5c [ 79.627028][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.627817][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.628490][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.629157][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.629803][ T5106] inet_sendmsg+0x154/0x284 [ 79.630498][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.631173][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.631872][ T5106] invoke_syscall+0x98/0x2b8 [ 79.632575][ T5106] el0_svc_common+0x138/0x258 [ 79.633250][ T5106] do_el0_svc+0x58/0x14c [ 79.633854][ T5106] el0_svc+0x78/0x1e0 [ 79.634459][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.635156][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.636069][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.637572][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.638583][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.640019][ T5106] Call trace: [ 79.640476][ T5106] dump_backtrace+0x0/0x43c [ 79.641224][ T5106] show_stack+0x2c/0x3c [ 79.641885][ T5106] __dump_stack+0x30/0x40 [ 79.642537][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.643235][ T5106] dump_stack+0x1c/0x5c [ 79.643859][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.644679][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.645442][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.646152][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.646845][ T5106] inet_sendmsg+0x154/0x284 [ 79.647526][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.648192][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.648949][ T5106] invoke_syscall+0x98/0x2b8 [ 79.649696][ T5106] el0_svc_common+0x138/0x258 [ 79.650441][ T5106] do_el0_svc+0x58/0x14c [ 79.651068][ T5106] el0_svc+0x78/0x1e0 [ 79.651673][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.652487][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.654550][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.656242][ T5106] CPU: 1 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.657272][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.658774][ T5106] Call trace: [ 79.659230][ T5106] dump_backtrace+0x0/0x43c [ 79.659908][ T5106] show_stack+0x2c/0x3c [ 79.660520][ T5106] __dump_stack+0x30/0x40 [ 79.661138][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.661795][ T5106] dump_stack+0x1c/0x5c [ 79.662445][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.663284][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.663996][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.664642][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.665236][ T5106] inet_sendmsg+0x154/0x284 [ 79.665843][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.666486][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.667320][ T5106] invoke_syscall+0x98/0x2b8 [ 79.668127][ T5106] el0_svc_common+0x138/0x258 [ 79.668972][ T5106] do_el0_svc+0x58/0x14c [ 79.669682][ T5106] el0_svc+0x78/0x1e0 [ 79.670328][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.671099][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.672848][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.674887][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.675946][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.677427][ T5106] Call trace: [ 79.677888][ T5106] dump_backtrace+0x0/0x43c [ 79.678515][ T5106] show_stack+0x2c/0x3c [ 79.679139][ T5106] __dump_stack+0x30/0x40 [ 79.679794][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.680447][ T5106] dump_stack+0x1c/0x5c [ 79.681036][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.681818][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.682493][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.683181][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.683817][ T5106] inet_sendmsg+0x154/0x284 [ 79.684444][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.685126][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.685802][ T5106] invoke_syscall+0x98/0x2b8 [ 79.686463][ T5106] el0_svc_common+0x138/0x258 [ 79.687150][ T5106] do_el0_svc+0x58/0x14c [ 79.687771][ T5106] el0_svc+0x78/0x1e0 [ 79.688389][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.689216][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.690704][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.692149][ T5106] CPU: 0 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.693101][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.694519][ T5106] Call trace: [ 79.694994][ T5106] dump_backtrace+0x0/0x43c [ 79.695668][ T5106] show_stack+0x2c/0x3c [ 79.696286][ T5106] __dump_stack+0x30/0x40 [ 79.696911][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.697553][ T5106] dump_stack+0x1c/0x5c [ 79.698207][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.699029][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.699695][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.700357][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.700992][ T5106] inet_sendmsg+0x154/0x284 [ 79.701680][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.702301][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.702969][ T5106] invoke_syscall+0x98/0x2b8 [ 79.703661][ T5106] el0_svc_common+0x138/0x258 [ 79.704289][ T5106] do_el0_svc+0x58/0x14c [ 79.704860][ T5106] el0_svc+0x78/0x1e0 [ 79.705402][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.706076][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.709017][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.710726][ T5106] CPU: 1 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.711854][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.713441][ T5106] Call trace: [ 79.713930][ T5106] dump_backtrace+0x0/0x43c [ 79.714598][ T5106] show_stack+0x2c/0x3c [ 79.715245][ T5106] __dump_stack+0x30/0x40 [ 79.715903][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.716587][ T5106] dump_stack+0x1c/0x5c [ 79.717189][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.717966][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.718702][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.719406][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.720052][ T5106] inet_sendmsg+0x154/0x284 [ 79.720758][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.721387][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.722110][ T5106] invoke_syscall+0x98/0x2b8 [ 79.722832][ T5106] el0_svc_common+0x138/0x258 [ 79.723550][ T5106] do_el0_svc+0x58/0x14c [ 79.724151][ T5106] el0_svc+0x78/0x1e0 [ 79.724683][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.725419][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.727355][ T5106] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.728939][ T5106] CPU: 1 PID: 5106 Comm: syz.0.33 Not tainted syzkaller #0 [ 79.729944][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.731296][ T5106] Call trace: [ 79.731779][ T5106] dump_backtrace+0x0/0x43c [ 79.732364][ T5106] show_stack+0x2c/0x3c [ 79.732900][ T5106] __dump_stack+0x30/0x40 [ 79.733471][ T5106] dump_stack_lvl+0xf8/0x160 [ 79.734082][ T5106] dump_stack+0x1c/0x5c [ 79.734685][ T5106] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.735447][ T5106] dccp_xmit_packet+0x298/0x448 [ 79.736103][ T5106] dccp_write_xmit+0x118/0x1d0 [ 79.736758][ T5106] dccp_sendmsg+0x538/0x8a8 [ 79.737393][ T5106] inet_sendmsg+0x154/0x284 [ 79.738052][ T5106] __sys_sendto+0x2e8/0x3d8 [ 79.738671][ T5106] __arm64_sys_sendto+0xd8/0xf8 [ 79.739347][ T5106] invoke_syscall+0x98/0x2b8 [ 79.739987][ T5106] el0_svc_common+0x138/0x258 [ 79.740689][ T5106] do_el0_svc+0x58/0x14c [ 79.741254][ T5106] el0_svc+0x78/0x1e0 [ 79.741796][ T5106] el0t_64_sync_handler+0xcc/0xe4 [ 79.742482][ T5106] el0t_64_sync+0x1a0/0x1a4 [ 79.777834][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.779682][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.780750][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.782278][ T5110] Call trace: [ 79.782716][ T5110] dump_backtrace+0x0/0x43c [ 79.783307][ T5110] show_stack+0x2c/0x3c [ 79.783922][ T5110] __dump_stack+0x30/0x40 [ 79.784533][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.785260][ T5110] dump_stack+0x1c/0x5c [ 79.785865][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.786681][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.787386][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.788104][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.788747][ T5110] inet_sendmsg+0x154/0x284 [ 79.789431][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.790054][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.790838][ T5110] invoke_syscall+0x98/0x2b8 [ 79.791502][ T5110] el0_svc_common+0x138/0x258 [ 79.792156][ T5110] do_el0_svc+0x58/0x14c [ 79.792754][ T5110] el0_svc+0x78/0x1e0 [ 79.793316][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.794020][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.795899][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.797644][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.798783][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.800377][ T5110] Call trace: [ 79.800886][ T5110] dump_backtrace+0x0/0x43c [ 79.801659][ T5110] show_stack+0x2c/0x3c [ 79.802324][ T5110] __dump_stack+0x30/0x40 [ 79.802991][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.803674][ T5110] dump_stack+0x1c/0x5c [ 79.804305][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.805107][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.805806][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.806503][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.807211][ T5110] inet_sendmsg+0x154/0x284 [ 79.807894][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.808595][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.809281][ T5110] invoke_syscall+0x98/0x2b8 [ 79.809954][ T5110] el0_svc_common+0x138/0x258 [ 79.810600][ T5110] do_el0_svc+0x58/0x14c [ 79.811289][ T5110] el0_svc+0x78/0x1e0 [ 79.811841][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.812602][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.813703][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.815367][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.816324][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.817728][ T5110] Call trace: [ 79.818174][ T5110] dump_backtrace+0x0/0x43c [ 79.818845][ T5110] show_stack+0x2c/0x3c [ 79.819428][ T5110] __dump_stack+0x30/0x40 [ 79.820027][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.820725][ T5110] dump_stack+0x1c/0x5c [ 79.821336][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.822068][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.822785][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.823461][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.824127][ T5110] inet_sendmsg+0x154/0x284 [ 79.824775][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.825414][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.826125][ T5110] invoke_syscall+0x98/0x2b8 [ 79.826746][ T5110] el0_svc_common+0x138/0x258 [ 79.827417][ T5110] do_el0_svc+0x58/0x14c [ 79.828033][ T5110] el0_svc+0x78/0x1e0 [ 79.828628][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.829350][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.830263][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.831834][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.832891][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.834235][ T5110] Call trace: [ 79.834717][ T5110] dump_backtrace+0x0/0x43c [ 79.835423][ T5110] show_stack+0x2c/0x3c [ 79.836062][ T5110] __dump_stack+0x30/0x40 [ 79.836685][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.837387][ T5110] dump_stack+0x1c/0x5c [ 79.837995][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.838779][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.839486][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.840105][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.840728][ T5110] inet_sendmsg+0x154/0x284 [ 79.841355][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.841979][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.842661][ T5110] invoke_syscall+0x98/0x2b8 [ 79.843333][ T5110] el0_svc_common+0x138/0x258 [ 79.844041][ T5110] do_el0_svc+0x58/0x14c [ 79.844664][ T5110] el0_svc+0x78/0x1e0 [ 79.845254][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.845948][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.847209][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.848757][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.849754][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.851188][ T5110] Call trace: [ 79.851637][ T5110] dump_backtrace+0x0/0x43c [ 79.852268][ T5110] show_stack+0x2c/0x3c [ 79.852863][ T5110] __dump_stack+0x30/0x40 [ 79.853513][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.854174][ T5110] dump_stack+0x1c/0x5c [ 79.854761][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.855603][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.856305][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.856985][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.857612][ T5110] inet_sendmsg+0x154/0x284 [ 79.858314][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.858957][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.859699][ T5110] invoke_syscall+0x98/0x2b8 [ 79.860342][ T5110] el0_svc_common+0x138/0x258 [ 79.861052][ T5110] do_el0_svc+0x58/0x14c [ 79.861653][ T5110] el0_svc+0x78/0x1e0 [ 79.862245][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.862946][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.863820][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.865732][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.866769][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.868201][ T5110] Call trace: [ 79.868695][ T5110] dump_backtrace+0x0/0x43c [ 79.869356][ T5110] show_stack+0x2c/0x3c [ 79.869929][ T5110] __dump_stack+0x30/0x40 [ 79.870567][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.871241][ T5110] dump_stack+0x1c/0x5c [ 79.871859][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.872694][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.873418][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.874048][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.874747][ T5110] inet_sendmsg+0x154/0x284 [ 79.875434][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.876112][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.876860][ T5110] invoke_syscall+0x98/0x2b8 [ 79.877575][ T5110] el0_svc_common+0x138/0x258 [ 79.878246][ T5110] do_el0_svc+0x58/0x14c [ 79.878960][ T5110] el0_svc+0x78/0x1e0 [ 79.879584][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.880316][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.881142][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.882654][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.883831][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.885321][ T5110] Call trace: [ 79.885756][ T5110] dump_backtrace+0x0/0x43c [ 79.886400][ T5110] show_stack+0x2c/0x3c [ 79.887017][ T5110] __dump_stack+0x30/0x40 [ 79.887662][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.888287][ T5110] dump_stack+0x1c/0x5c [ 79.888919][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.889635][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.890338][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.891001][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.891604][ T5110] inet_sendmsg+0x154/0x284 [ 79.892225][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.892889][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.893588][ T5110] invoke_syscall+0x98/0x2b8 [ 79.894223][ T5110] el0_svc_common+0x138/0x258 [ 79.894869][ T5110] do_el0_svc+0x58/0x14c [ 79.895416][ T5110] el0_svc+0x78/0x1e0 [ 79.895973][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.896661][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.897697][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.899287][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.900296][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.901771][ T5110] Call trace: [ 79.902231][ T5110] dump_backtrace+0x0/0x43c [ 79.902838][ T5110] show_stack+0x2c/0x3c [ 79.903445][ T5110] __dump_stack+0x30/0x40 [ 79.904061][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.904732][ T5110] dump_stack+0x1c/0x5c [ 79.905356][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.906144][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.906842][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.907514][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.908133][ T5110] inet_sendmsg+0x154/0x284 [ 79.908767][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.909422][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.910074][ T5110] invoke_syscall+0x98/0x2b8 [ 79.910700][ T5110] el0_svc_common+0x138/0x258 [ 79.911355][ T5110] do_el0_svc+0x58/0x14c [ 79.911947][ T5110] el0_svc+0x78/0x1e0 [ 79.912446][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.913148][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.913895][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.915505][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.916564][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.918016][ T5110] Call trace: [ 79.918506][ T5110] dump_backtrace+0x0/0x43c [ 79.919212][ T5110] show_stack+0x2c/0x3c [ 79.919870][ T5110] __dump_stack+0x30/0x40 [ 79.920512][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.921152][ T5110] dump_stack+0x1c/0x5c [ 79.921753][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.922501][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.923230][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.923899][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.924559][ T5110] inet_sendmsg+0x154/0x284 [ 79.925236][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.925915][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.926623][ T5110] invoke_syscall+0x98/0x2b8 [ 79.927244][ T5110] el0_svc_common+0x138/0x258 [ 79.927931][ T5110] do_el0_svc+0x58/0x14c [ 79.928539][ T5110] el0_svc+0x78/0x1e0 [ 79.929097][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.929825][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.930669][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.932103][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.933040][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.934480][ T5110] Call trace: [ 79.934973][ T5110] dump_backtrace+0x0/0x43c [ 79.935613][ T5110] show_stack+0x2c/0x3c [ 79.936209][ T5110] __dump_stack+0x30/0x40 [ 79.936785][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.937406][ T5110] dump_stack+0x1c/0x5c [ 79.938051][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.938807][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.939478][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.940207][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.940805][ T5110] inet_sendmsg+0x154/0x284 [ 79.941445][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.942017][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.942750][ T5110] invoke_syscall+0x98/0x2b8 [ 79.943432][ T5110] el0_svc_common+0x138/0x258 [ 79.944138][ T5110] do_el0_svc+0x58/0x14c [ 79.944743][ T5110] el0_svc+0x78/0x1e0 [ 79.945303][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.945984][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.946846][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.948499][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.949473][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.950883][ T5110] Call trace: [ 79.951339][ T5110] dump_backtrace+0x0/0x43c [ 79.951972][ T5110] show_stack+0x2c/0x3c [ 79.952578][ T5110] __dump_stack+0x30/0x40 [ 79.953169][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.953807][ T5110] dump_stack+0x1c/0x5c [ 79.954448][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.955282][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.956006][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.956709][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.957319][ T5110] inet_sendmsg+0x154/0x284 [ 79.957975][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.958627][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.959337][ T5110] invoke_syscall+0x98/0x2b8 [ 79.960028][ T5110] el0_svc_common+0x138/0x258 [ 79.960747][ T5110] do_el0_svc+0x58/0x14c [ 79.961332][ T5110] el0_svc+0x78/0x1e0 [ 79.961844][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.962525][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.963693][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.965488][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.966615][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.968176][ T5110] Call trace: [ 79.968664][ T5110] dump_backtrace+0x0/0x43c [ 79.969332][ T5110] show_stack+0x2c/0x3c [ 79.969887][ T5110] __dump_stack+0x30/0x40 [ 79.970491][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.971144][ T5110] dump_stack+0x1c/0x5c [ 79.971751][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.972502][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.973230][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.973888][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.974542][ T5110] inet_sendmsg+0x154/0x284 [ 79.975204][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.975881][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.976640][ T5110] invoke_syscall+0x98/0x2b8 [ 79.977274][ T5110] el0_svc_common+0x138/0x258 [ 79.977967][ T5110] do_el0_svc+0x58/0x14c [ 79.978521][ T5110] el0_svc+0x78/0x1e0 [ 79.979103][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.979809][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.980613][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.982097][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.983012][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.984414][ T5110] Call trace: [ 79.984854][ T5110] dump_backtrace+0x0/0x43c [ 79.985459][ T5110] show_stack+0x2c/0x3c [ 79.986056][ T5110] __dump_stack+0x30/0x40 [ 79.986678][ T5110] dump_stack_lvl+0xf8/0x160 [ 79.987311][ T5110] dump_stack+0x1c/0x5c [ 79.987886][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 79.988641][ T5110] dccp_xmit_packet+0x298/0x448 [ 79.989334][ T5110] dccp_write_xmit+0x118/0x1d0 [ 79.990003][ T5110] dccp_sendmsg+0x538/0x8a8 [ 79.990633][ T5110] inet_sendmsg+0x154/0x284 [ 79.991275][ T5110] __sys_sendto+0x2e8/0x3d8 [ 79.991901][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 79.992604][ T5110] invoke_syscall+0x98/0x2b8 [ 79.993283][ T5110] el0_svc_common+0x138/0x258 [ 79.993915][ T5110] do_el0_svc+0x58/0x14c [ 79.994477][ T5110] el0_svc+0x78/0x1e0 [ 79.995065][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 79.995740][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 79.996590][ T5110] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 79.998011][ T5110] CPU: 1 PID: 5110 Comm: syz.0.35 Not tainted syzkaller #0 [ 79.998941][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.000327][ T5110] Call trace: [ 80.000763][ T5110] dump_backtrace+0x0/0x43c [ 80.001369][ T5110] show_stack+0x2c/0x3c [ 80.001913][ T5110] __dump_stack+0x30/0x40 [ 80.002501][ T5110] dump_stack_lvl+0xf8/0x160 [ 80.003136][ T5110] dump_stack+0x1c/0x5c [ 80.003691][ T5110] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.004442][ T5110] dccp_xmit_packet+0x298/0x448 [ 80.005107][ T5110] dccp_write_xmit+0x118/0x1d0 [ 80.005748][ T5110] dccp_sendmsg+0x538/0x8a8 [ 80.006391][ T5110] inet_sendmsg+0x154/0x284 [ 80.007002][ T5110] __sys_sendto+0x2e8/0x3d8 [ 80.007600][ T5110] __arm64_sys_sendto+0xd8/0xf8 [ 80.008264][ T5110] invoke_syscall+0x98/0x2b8 [ 80.008872][ T5110] el0_svc_common+0x138/0x258 [ 80.009505][ T5110] do_el0_svc+0x58/0x14c [ 80.010086][ T5110] el0_svc+0x78/0x1e0 [ 80.010637][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 80.011285][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 80.044818][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.046636][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.047682][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.049177][ T5114] Call trace: [ 80.049680][ T5114] dump_backtrace+0x0/0x43c [ 80.050280][ T5114] show_stack+0x2c/0x3c [ 80.050840][ T5114] __dump_stack+0x30/0x40 [ 80.051471][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.052119][ T5114] dump_stack+0x1c/0x5c [ 80.052725][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.053548][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.054307][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.055033][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.055707][ T5114] inet_sendmsg+0x154/0x284 [ 80.056407][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.057168][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.057957][ T5114] invoke_syscall+0x98/0x2b8 [ 80.058713][ T5114] el0_svc_common+0x138/0x258 [ 80.059476][ T5114] do_el0_svc+0x58/0x14c [ 80.060114][ T5114] el0_svc+0x78/0x1e0 [ 80.060685][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.061436][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.062527][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.064066][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.065151][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.066535][ T5114] Call trace: [ 80.066983][ T5114] dump_backtrace+0x0/0x43c [ 80.067596][ T5114] show_stack+0x2c/0x3c [ 80.068153][ T5114] __dump_stack+0x30/0x40 [ 80.068757][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.069403][ T5114] dump_stack+0x1c/0x5c [ 80.070026][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.070794][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.071490][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.072156][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.072851][ T5114] inet_sendmsg+0x154/0x284 [ 80.073606][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.074332][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.075114][ T5114] invoke_syscall+0x98/0x2b8 [ 80.075818][ T5114] el0_svc_common+0x138/0x258 [ 80.076516][ T5114] do_el0_svc+0x58/0x14c [ 80.077201][ T5114] el0_svc+0x78/0x1e0 [ 80.077809][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.078545][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.080536][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.082360][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.083294][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.084680][ T5114] Call trace: [ 80.085149][ T5114] dump_backtrace+0x0/0x43c [ 80.085811][ T5114] show_stack+0x2c/0x3c [ 80.086389][ T5114] __dump_stack+0x30/0x40 [ 80.086973][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.087585][ T5114] dump_stack+0x1c/0x5c [ 80.088172][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.088954][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.089656][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.090300][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.090930][ T5114] inet_sendmsg+0x154/0x284 [ 80.091532][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.092322][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.093113][ T5114] invoke_syscall+0x98/0x2b8 [ 80.093805][ T5114] el0_svc_common+0x138/0x258 [ 80.094529][ T5114] do_el0_svc+0x58/0x14c [ 80.095209][ T5114] el0_svc+0x78/0x1e0 [ 80.095820][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.096637][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.098248][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.099904][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.100892][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.102256][ T5114] Call trace: [ 80.102672][ T5114] dump_backtrace+0x0/0x43c [ 80.103287][ T5114] show_stack+0x2c/0x3c [ 80.103903][ T5114] __dump_stack+0x30/0x40 [ 80.104507][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.105151][ T5114] dump_stack+0x1c/0x5c [ 80.105718][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.106462][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.107101][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.107740][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.108331][ T5114] inet_sendmsg+0x154/0x284 [ 80.108983][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.109585][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.110276][ T5114] invoke_syscall+0x98/0x2b8 [ 80.110955][ T5114] el0_svc_common+0x138/0x258 [ 80.111581][ T5114] do_el0_svc+0x58/0x14c [ 80.112154][ T5114] el0_svc+0x78/0x1e0 [ 80.112688][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.113369][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.115408][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.117019][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.118023][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.119528][ T5114] Call trace: [ 80.120023][ T5114] dump_backtrace+0x0/0x43c [ 80.120661][ T5114] show_stack+0x2c/0x3c [ 80.121229][ T5114] __dump_stack+0x30/0x40 [ 80.121817][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.122479][ T5114] dump_stack+0x1c/0x5c [ 80.123082][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.123844][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.124536][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.125171][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.125768][ T5114] inet_sendmsg+0x154/0x284 [ 80.126375][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.127037][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.127723][ T5114] invoke_syscall+0x98/0x2b8 [ 80.128339][ T5114] el0_svc_common+0x138/0x258 [ 80.129010][ T5114] do_el0_svc+0x58/0x14c [ 80.129588][ T5114] el0_svc+0x78/0x1e0 [ 80.130123][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.130784][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.132862][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.134615][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.135663][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.137143][ T5114] Call trace: [ 80.137646][ T5114] dump_backtrace+0x0/0x43c [ 80.138279][ T5114] show_stack+0x2c/0x3c [ 80.138876][ T5114] __dump_stack+0x30/0x40 [ 80.139489][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.140158][ T5114] dump_stack+0x1c/0x5c [ 80.140750][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.141526][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.142188][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.142843][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.143479][ T5114] inet_sendmsg+0x154/0x284 [ 80.144108][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.144788][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.145478][ T5114] invoke_syscall+0x98/0x2b8 [ 80.146157][ T5114] el0_svc_common+0x138/0x258 [ 80.146809][ T5114] do_el0_svc+0x58/0x14c [ 80.147436][ T5114] el0_svc+0x78/0x1e0 [ 80.147993][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.148716][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.150786][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.152392][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.153487][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.154975][ T5114] Call trace: [ 80.155469][ T5114] dump_backtrace+0x0/0x43c [ 80.156112][ T5114] show_stack+0x2c/0x3c [ 80.156706][ T5114] __dump_stack+0x30/0x40 [ 80.157309][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.157969][ T5114] dump_stack+0x1c/0x5c [ 80.158537][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.159293][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.159991][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.160676][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.161335][ T5114] inet_sendmsg+0x154/0x284 [ 80.161959][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.162595][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.163246][ T5114] invoke_syscall+0x98/0x2b8 [ 80.163882][ T5114] el0_svc_common+0x138/0x258 [ 80.164559][ T5114] do_el0_svc+0x58/0x14c [ 80.165132][ T5114] el0_svc+0x78/0x1e0 [ 80.165670][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.166380][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.168451][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.170201][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.171266][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.172758][ T5114] Call trace: [ 80.173260][ T5114] dump_backtrace+0x0/0x43c [ 80.173952][ T5114] show_stack+0x2c/0x3c [ 80.174556][ T5114] __dump_stack+0x30/0x40 [ 80.175220][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.175928][ T5114] dump_stack+0x1c/0x5c [ 80.176537][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.177356][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.178088][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.178789][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.179461][ T5114] inet_sendmsg+0x154/0x284 [ 80.180152][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.180803][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.181481][ T5114] invoke_syscall+0x98/0x2b8 [ 80.182150][ T5114] el0_svc_common+0x138/0x258 [ 80.182831][ T5114] do_el0_svc+0x58/0x14c [ 80.183458][ T5114] el0_svc+0x78/0x1e0 [ 80.184057][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.184774][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.187090][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.188653][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.189621][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.191037][ T5114] Call trace: [ 80.191504][ T5114] dump_backtrace+0x0/0x43c [ 80.192130][ T5114] show_stack+0x2c/0x3c [ 80.192723][ T5114] __dump_stack+0x30/0x40 [ 80.193322][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.193975][ T5114] dump_stack+0x1c/0x5c [ 80.194568][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.195351][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.196037][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.196695][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.197319][ T5114] inet_sendmsg+0x154/0x284 [ 80.197956][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.198563][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.199235][ T5114] invoke_syscall+0x98/0x2b8 [ 80.199859][ T5114] el0_svc_common+0x138/0x258 [ 80.200495][ T5114] do_el0_svc+0x58/0x14c [ 80.201055][ T5114] el0_svc+0x78/0x1e0 [ 80.201595][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.202293][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.204703][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.206381][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.207409][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.208809][ T5114] Call trace: [ 80.209246][ T5114] dump_backtrace+0x0/0x43c [ 80.209874][ T5114] show_stack+0x2c/0x3c [ 80.210440][ T5114] __dump_stack+0x30/0x40 [ 80.211060][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.211700][ T5114] dump_stack+0x1c/0x5c [ 80.212273][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.213047][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.213692][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.214367][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.214967][ T5114] inet_sendmsg+0x154/0x284 [ 80.215607][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.216230][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.216894][ T5114] invoke_syscall+0x98/0x2b8 [ 80.217536][ T5114] el0_svc_common+0x138/0x258 [ 80.218153][ T5114] do_el0_svc+0x58/0x14c [ 80.218723][ T5114] el0_svc+0x78/0x1e0 [ 80.219234][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.219906][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.222080][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.223784][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.224763][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.226140][ T5114] Call trace: [ 80.226573][ T5114] dump_backtrace+0x0/0x43c [ 80.227275][ T5114] show_stack+0x2c/0x3c [ 80.227877][ T5114] __dump_stack+0x30/0x40 [ 80.228483][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.229126][ T5114] dump_stack+0x1c/0x5c [ 80.229704][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.230485][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.231124][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.231810][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.232413][ T5114] inet_sendmsg+0x154/0x284 [ 80.233045][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.233691][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.234363][ T5114] invoke_syscall+0x98/0x2b8 [ 80.235008][ T5114] el0_svc_common+0x138/0x258 [ 80.235637][ T5114] do_el0_svc+0x58/0x14c [ 80.236213][ T5114] el0_svc+0x78/0x1e0 [ 80.236733][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.237437][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.239431][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.241181][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.242307][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.243842][ T5114] Call trace: [ 80.244337][ T5114] dump_backtrace+0x0/0x43c [ 80.244955][ T5114] show_stack+0x2c/0x3c [ 80.245564][ T5114] __dump_stack+0x30/0x40 [ 80.246186][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.246838][ T5114] dump_stack+0x1c/0x5c [ 80.247392][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.248143][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.248840][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.249490][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.250138][ T5114] inet_sendmsg+0x154/0x284 [ 80.250746][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.251437][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.252139][ T5114] invoke_syscall+0x98/0x2b8 [ 80.252856][ T5114] el0_svc_common+0x138/0x258 [ 80.253543][ T5114] do_el0_svc+0x58/0x14c [ 80.254262][ T5114] el0_svc+0x78/0x1e0 [ 80.254938][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.255747][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.257812][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.259423][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.260524][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.261978][ T5114] Call trace: [ 80.262428][ T5114] dump_backtrace+0x0/0x43c [ 80.263111][ T5114] show_stack+0x2c/0x3c [ 80.263736][ T5114] __dump_stack+0x30/0x40 [ 80.264353][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.265063][ T5114] dump_stack+0x1c/0x5c [ 80.265703][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.266540][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.267185][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.267842][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.268480][ T5114] inet_sendmsg+0x154/0x284 [ 80.269171][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.269854][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.270564][ T5114] invoke_syscall+0x98/0x2b8 [ 80.271272][ T5114] el0_svc_common+0x138/0x258 [ 80.271924][ T5114] do_el0_svc+0x58/0x14c [ 80.272555][ T5114] el0_svc+0x78/0x1e0 [ 80.273097][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.273775][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.275901][ T5114] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.277512][ T5114] CPU: 1 PID: 5114 Comm: syz.0.37 Not tainted syzkaller #0 [ 80.278551][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.280123][ T5114] Call trace: [ 80.280568][ T5114] dump_backtrace+0x0/0x43c [ 80.281216][ T5114] show_stack+0x2c/0x3c [ 80.281847][ T5114] __dump_stack+0x30/0x40 [ 80.282512][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.283281][ T5114] dump_stack+0x1c/0x5c [ 80.283881][ T5114] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.284661][ T5114] dccp_xmit_packet+0x298/0x448 [ 80.285406][ T5114] dccp_write_xmit+0x118/0x1d0 [ 80.286145][ T5114] dccp_sendmsg+0x538/0x8a8 [ 80.286825][ T5114] inet_sendmsg+0x154/0x284 [ 80.287471][ T5114] __sys_sendto+0x2e8/0x3d8 [ 80.288168][ T5114] __arm64_sys_sendto+0xd8/0xf8 [ 80.288915][ T5114] invoke_syscall+0x98/0x2b8 [ 80.289579][ T5114] el0_svc_common+0x138/0x258 [ 80.290286][ T5114] do_el0_svc+0x58/0x14c [ 80.290911][ T5114] el0_svc+0x78/0x1e0 [ 80.291462][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.292185][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.312905][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.315530][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.316623][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.318162][ T5116] Call trace: [ 80.318669][ T5116] dump_backtrace+0x0/0x43c [ 80.319351][ T5116] show_stack+0x2c/0x3c [ 80.319962][ T5116] __dump_stack+0x30/0x40 [ 80.320586][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.321287][ T5116] dump_stack+0x1c/0x5c [ 80.321872][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.322632][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.323346][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.324047][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.324721][ T5116] inet_sendmsg+0x154/0x284 [ 80.325327][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.325956][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.326648][ T5116] invoke_syscall+0x98/0x2b8 [ 80.327365][ T5116] el0_svc_common+0x138/0x258 [ 80.328035][ T5116] do_el0_svc+0x58/0x14c [ 80.328676][ T5116] el0_svc+0x78/0x1e0 [ 80.329221][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.329970][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.332046][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.333634][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.334627][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.336240][ T5116] Call trace: [ 80.336751][ T5116] dump_backtrace+0x0/0x43c [ 80.337457][ T5116] show_stack+0x2c/0x3c [ 80.338072][ T5116] __dump_stack+0x30/0x40 [ 80.338693][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.339402][ T5116] dump_stack+0x1c/0x5c [ 80.340004][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.340751][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.341465][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.342168][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.342781][ T5116] inet_sendmsg+0x154/0x284 [ 80.343380][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.344022][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.344707][ T5116] invoke_syscall+0x98/0x2b8 [ 80.345328][ T5116] el0_svc_common+0x138/0x258 [ 80.345936][ T5116] do_el0_svc+0x58/0x14c [ 80.346542][ T5116] el0_svc+0x78/0x1e0 [ 80.347098][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.347806][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.351264][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.352900][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.353967][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.355453][ T5116] Call trace: [ 80.355943][ T5116] dump_backtrace+0x0/0x43c [ 80.356569][ T5116] show_stack+0x2c/0x3c [ 80.357206][ T5116] __dump_stack+0x30/0x40 [ 80.357826][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.358456][ T5116] dump_stack+0x1c/0x5c [ 80.359037][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.359806][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.360484][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.361121][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.361764][ T5116] inet_sendmsg+0x154/0x284 [ 80.362395][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.363031][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.363691][ T5116] invoke_syscall+0x98/0x2b8 [ 80.364370][ T5116] el0_svc_common+0x138/0x258 [ 80.365010][ T5116] do_el0_svc+0x58/0x14c [ 80.365614][ T5116] el0_svc+0x78/0x1e0 [ 80.366146][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.366817][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.370110][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.371737][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.372728][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.374198][ T5116] Call trace: [ 80.374682][ T5116] dump_backtrace+0x0/0x43c [ 80.375322][ T5116] show_stack+0x2c/0x3c [ 80.375942][ T5116] __dump_stack+0x30/0x40 [ 80.376573][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.377167][ T5116] dump_stack+0x1c/0x5c [ 80.377718][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.378475][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.379137][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.379778][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.380391][ T5116] inet_sendmsg+0x154/0x284 [ 80.381020][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.381611][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.382357][ T5116] invoke_syscall+0x98/0x2b8 [ 80.383031][ T5116] el0_svc_common+0x138/0x258 [ 80.383689][ T5116] do_el0_svc+0x58/0x14c [ 80.384277][ T5116] el0_svc+0x78/0x1e0 [ 80.384822][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.385603][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.387794][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.389400][ T5116] CPU: 0 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.390373][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.391757][ T5116] Call trace: [ 80.392234][ T5116] dump_backtrace+0x0/0x43c [ 80.392884][ T5116] show_stack+0x2c/0x3c [ 80.393466][ T5116] __dump_stack+0x30/0x40 [ 80.394045][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.394712][ T5116] dump_stack+0x1c/0x5c [ 80.395287][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.396099][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.396811][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.397482][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.398132][ T5116] inet_sendmsg+0x154/0x284 [ 80.398757][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.399402][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.400131][ T5116] invoke_syscall+0x98/0x2b8 [ 80.400779][ T5116] el0_svc_common+0x138/0x258 [ 80.401420][ T5116] do_el0_svc+0x58/0x14c [ 80.402015][ T5116] el0_svc+0x78/0x1e0 [ 80.402560][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.403321][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.404319][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.405930][ T5116] CPU: 0 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.407002][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.408576][ T5116] Call trace: [ 80.409007][ T5116] dump_backtrace+0x0/0x43c [ 80.409679][ T5116] show_stack+0x2c/0x3c [ 80.410292][ T5116] __dump_stack+0x30/0x40 [ 80.410884][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.411529][ T5116] dump_stack+0x1c/0x5c [ 80.412095][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.412922][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.413663][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.414437][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.415127][ T5116] inet_sendmsg+0x154/0x284 [ 80.415774][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.416451][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.417134][ T5116] invoke_syscall+0x98/0x2b8 [ 80.417842][ T5116] el0_svc_common+0x138/0x258 [ 80.418507][ T5116] do_el0_svc+0x58/0x14c [ 80.419125][ T5116] el0_svc+0x78/0x1e0 [ 80.419693][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.420378][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.424679][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.426270][ T5116] CPU: 0 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.427318][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.428787][ T5116] Call trace: [ 80.429214][ T5116] dump_backtrace+0x0/0x43c [ 80.429873][ T5116] show_stack+0x2c/0x3c [ 80.430473][ T5116] __dump_stack+0x30/0x40 [ 80.431018][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.431774][ T5116] dump_stack+0x1c/0x5c [ 80.432435][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.433239][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.433945][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.434644][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.435317][ T5116] inet_sendmsg+0x154/0x284 [ 80.436001][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.436648][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.437337][ T5116] invoke_syscall+0x98/0x2b8 [ 80.438027][ T5116] el0_svc_common+0x138/0x258 [ 80.438752][ T5116] do_el0_svc+0x58/0x14c [ 80.439347][ T5116] el0_svc+0x78/0x1e0 [ 80.439981][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.440734][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.442613][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.445105][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.446017][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.447423][ T5116] Call trace: [ 80.447862][ T5116] dump_backtrace+0x0/0x43c [ 80.448496][ T5116] show_stack+0x2c/0x3c [ 80.449098][ T5116] __dump_stack+0x30/0x40 [ 80.449727][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.450388][ T5116] dump_stack+0x1c/0x5c [ 80.450990][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.451742][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.452404][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.453053][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.453632][ T5116] inet_sendmsg+0x154/0x284 [ 80.454262][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.454882][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.455548][ T5116] invoke_syscall+0x98/0x2b8 [ 80.456170][ T5116] el0_svc_common+0x138/0x258 [ 80.456797][ T5116] do_el0_svc+0x58/0x14c [ 80.457389][ T5116] el0_svc+0x78/0x1e0 [ 80.457916][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.458626][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.460128][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.461830][ T5116] CPU: 0 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.462811][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.464198][ T5116] Call trace: [ 80.464692][ T5116] dump_backtrace+0x0/0x43c [ 80.465318][ T5116] show_stack+0x2c/0x3c [ 80.465902][ T5116] __dump_stack+0x30/0x40 [ 80.466521][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.467146][ T5116] dump_stack+0x1c/0x5c [ 80.467731][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.468513][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.469299][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.470039][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.470719][ T5116] inet_sendmsg+0x154/0x284 [ 80.471447][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.472082][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.472761][ T5116] invoke_syscall+0x98/0x2b8 [ 80.473400][ T5116] el0_svc_common+0x138/0x258 [ 80.474043][ T5116] do_el0_svc+0x58/0x14c [ 80.474612][ T5116] el0_svc+0x78/0x1e0 [ 80.475151][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.475830][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.477719][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.479412][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.480459][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.481976][ T5116] Call trace: [ 80.482422][ T5116] dump_backtrace+0x0/0x43c [ 80.483073][ T5116] show_stack+0x2c/0x3c [ 80.483696][ T5116] __dump_stack+0x30/0x40 [ 80.484282][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.484913][ T5116] dump_stack+0x1c/0x5c [ 80.485486][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.486261][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.487009][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.487721][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.488400][ T5116] inet_sendmsg+0x154/0x284 [ 80.489092][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.489789][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.490542][ T5116] invoke_syscall+0x98/0x2b8 [ 80.491239][ T5116] el0_svc_common+0x138/0x258 [ 80.491955][ T5116] do_el0_svc+0x58/0x14c [ 80.492597][ T5116] el0_svc+0x78/0x1e0 [ 80.493204][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.493996][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.495738][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.497342][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.498293][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.499694][ T5116] Call trace: [ 80.500137][ T5116] dump_backtrace+0x0/0x43c [ 80.500762][ T5116] show_stack+0x2c/0x3c [ 80.501332][ T5116] __dump_stack+0x30/0x40 [ 80.501944][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.502577][ T5116] dump_stack+0x1c/0x5c [ 80.503162][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.503930][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.504614][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.505301][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.505953][ T5116] inet_sendmsg+0x154/0x284 [ 80.506628][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.507269][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.507930][ T5116] invoke_syscall+0x98/0x2b8 [ 80.508600][ T5116] el0_svc_common+0x138/0x258 [ 80.509265][ T5116] do_el0_svc+0x58/0x14c [ 80.509822][ T5116] el0_svc+0x78/0x1e0 [ 80.510363][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.511069][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.512322][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.513951][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.515016][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.516551][ T5116] Call trace: [ 80.517051][ T5116] dump_backtrace+0x0/0x43c [ 80.517722][ T5116] show_stack+0x2c/0x3c [ 80.518357][ T5116] __dump_stack+0x30/0x40 [ 80.519017][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.519719][ T5116] dump_stack+0x1c/0x5c [ 80.520344][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.521136][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.521824][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.522506][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.523157][ T5116] inet_sendmsg+0x154/0x284 [ 80.523789][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.524424][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.525098][ T5116] invoke_syscall+0x98/0x2b8 [ 80.525753][ T5116] el0_svc_common+0x138/0x258 [ 80.526409][ T5116] do_el0_svc+0x58/0x14c [ 80.526979][ T5116] el0_svc+0x78/0x1e0 [ 80.527519][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.528217][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.530046][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.531741][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.532781][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.534128][ T5116] Call trace: [ 80.534585][ T5116] dump_backtrace+0x0/0x43c [ 80.535246][ T5116] show_stack+0x2c/0x3c [ 80.535847][ T5116] __dump_stack+0x30/0x40 [ 80.536492][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.537167][ T5116] dump_stack+0x1c/0x5c [ 80.537758][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.538548][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.539246][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.539946][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.540602][ T5116] inet_sendmsg+0x154/0x284 [ 80.541266][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.541927][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.542673][ T5116] invoke_syscall+0x98/0x2b8 [ 80.543385][ T5116] el0_svc_common+0x138/0x258 [ 80.544063][ T5116] do_el0_svc+0x58/0x14c [ 80.544672][ T5116] el0_svc+0x78/0x1e0 [ 80.545257][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.545994][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.547465][ T5116] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.548981][ T5116] CPU: 1 PID: 5116 Comm: syz.0.38 Not tainted syzkaller #0 [ 80.549983][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.551420][ T5116] Call trace: [ 80.551890][ T5116] dump_backtrace+0x0/0x43c [ 80.552538][ T5116] show_stack+0x2c/0x3c [ 80.553123][ T5116] __dump_stack+0x30/0x40 [ 80.553756][ T5116] dump_stack_lvl+0xf8/0x160 [ 80.554415][ T5116] dump_stack+0x1c/0x5c [ 80.555018][ T5116] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.555796][ T5116] dccp_xmit_packet+0x298/0x448 [ 80.556495][ T5116] dccp_write_xmit+0x118/0x1d0 [ 80.557174][ T5116] dccp_sendmsg+0x538/0x8a8 [ 80.557812][ T5116] inet_sendmsg+0x154/0x284 [ 80.558440][ T5116] __sys_sendto+0x2e8/0x3d8 [ 80.559064][ T5116] __arm64_sys_sendto+0xd8/0xf8 [ 80.559728][ T5116] invoke_syscall+0x98/0x2b8 [ 80.560385][ T5116] el0_svc_common+0x138/0x258 [ 80.561057][ T5116] do_el0_svc+0x58/0x14c [ 80.561674][ T5116] el0_svc+0x78/0x1e0 [ 80.562237][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 80.562939][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 80.591462][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.593111][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.594251][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.595759][ T5118] Call trace: [ 80.596223][ T5118] dump_backtrace+0x0/0x43c [ 80.596870][ T5118] show_stack+0x2c/0x3c [ 80.597472][ T5118] __dump_stack+0x30/0x40 [ 80.598078][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.598730][ T5118] dump_stack+0x1c/0x5c [ 80.599302][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.600069][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.600769][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.601456][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.602085][ T5118] inet_sendmsg+0x154/0x284 [ 80.602719][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.603344][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.604032][ T5118] invoke_syscall+0x98/0x2b8 [ 80.604718][ T5118] el0_svc_common+0x138/0x258 [ 80.605383][ T5118] do_el0_svc+0x58/0x14c [ 80.605986][ T5118] el0_svc+0x78/0x1e0 [ 80.606544][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.607271][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.608369][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.609950][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.610965][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.612379][ T5118] Call trace: [ 80.612819][ T5118] dump_backtrace+0x0/0x43c [ 80.613448][ T5118] show_stack+0x2c/0x3c [ 80.614051][ T5118] __dump_stack+0x30/0x40 [ 80.614653][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.615361][ T5118] dump_stack+0x1c/0x5c [ 80.615967][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.616770][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.617512][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.618216][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.618866][ T5118] inet_sendmsg+0x154/0x284 [ 80.619538][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.620195][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.620899][ T5118] invoke_syscall+0x98/0x2b8 [ 80.621569][ T5118] el0_svc_common+0x138/0x258 [ 80.622221][ T5118] do_el0_svc+0x58/0x14c [ 80.622818][ T5118] el0_svc+0x78/0x1e0 [ 80.623349][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.624027][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.625090][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.626631][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.627644][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.629017][ T5118] Call trace: [ 80.629462][ T5118] dump_backtrace+0x0/0x43c [ 80.630095][ T5118] show_stack+0x2c/0x3c [ 80.630676][ T5118] __dump_stack+0x30/0x40 [ 80.631232][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.631877][ T5118] dump_stack+0x1c/0x5c [ 80.632428][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.633145][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.633786][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.634423][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.635034][ T5118] inet_sendmsg+0x154/0x284 [ 80.635688][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.636299][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.636969][ T5118] invoke_syscall+0x98/0x2b8 [ 80.637603][ T5118] el0_svc_common+0x138/0x258 [ 80.638256][ T5118] do_el0_svc+0x58/0x14c [ 80.638841][ T5118] el0_svc+0x78/0x1e0 [ 80.639399][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.640102][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.642503][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.644045][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.645063][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.646472][ T5118] Call trace: [ 80.646915][ T5118] dump_backtrace+0x0/0x43c [ 80.647516][ T5118] show_stack+0x2c/0x3c [ 80.648075][ T5118] __dump_stack+0x30/0x40 [ 80.648689][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.649305][ T5118] dump_stack+0x1c/0x5c [ 80.649879][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.650631][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.651299][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.651990][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.652637][ T5118] inet_sendmsg+0x154/0x284 [ 80.653286][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.653934][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.654759][ T5118] invoke_syscall+0x98/0x2b8 [ 80.655489][ T5118] el0_svc_common+0x138/0x258 [ 80.656196][ T5118] do_el0_svc+0x58/0x14c [ 80.656841][ T5118] el0_svc+0x78/0x1e0 [ 80.657440][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.658182][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.659123][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.660811][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.661819][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.663262][ T5118] Call trace: [ 80.663728][ T5118] dump_backtrace+0x0/0x43c [ 80.664360][ T5118] show_stack+0x2c/0x3c [ 80.664988][ T5118] __dump_stack+0x30/0x40 [ 80.665658][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.666336][ T5118] dump_stack+0x1c/0x5c [ 80.666944][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.667720][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.668465][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.669206][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.669895][ T5118] inet_sendmsg+0x154/0x284 [ 80.670558][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.671225][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.671963][ T5118] invoke_syscall+0x98/0x2b8 [ 80.672671][ T5118] el0_svc_common+0x138/0x258 [ 80.673370][ T5118] do_el0_svc+0x58/0x14c [ 80.674006][ T5118] el0_svc+0x78/0x1e0 [ 80.674609][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.675342][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.676605][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.678265][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.679306][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.680809][ T5118] Call trace: [ 80.681286][ T5118] dump_backtrace+0x0/0x43c [ 80.681972][ T5118] show_stack+0x2c/0x3c [ 80.682578][ T5118] __dump_stack+0x30/0x40 [ 80.683202][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.683884][ T5118] dump_stack+0x1c/0x5c [ 80.684515][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.685318][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.686046][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.686759][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.687419][ T5118] inet_sendmsg+0x154/0x284 [ 80.688072][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.688718][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.689370][ T5118] invoke_syscall+0x98/0x2b8 [ 80.689996][ T5118] el0_svc_common+0x138/0x258 [ 80.690632][ T5118] do_el0_svc+0x58/0x14c [ 80.691196][ T5118] el0_svc+0x78/0x1e0 [ 80.691742][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.692441][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.693311][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.694910][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.695913][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.697505][ T5118] Call trace: [ 80.697997][ T5118] dump_backtrace+0x0/0x43c [ 80.698699][ T5118] show_stack+0x2c/0x3c [ 80.699320][ T5118] __dump_stack+0x30/0x40 [ 80.699959][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.700644][ T5118] dump_stack+0x1c/0x5c [ 80.701254][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.702036][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.702744][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.703442][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.704058][ T5118] inet_sendmsg+0x154/0x284 [ 80.704689][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.705327][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.706047][ T5118] invoke_syscall+0x98/0x2b8 [ 80.706693][ T5118] el0_svc_common+0x138/0x258 [ 80.707397][ T5118] do_el0_svc+0x58/0x14c [ 80.708036][ T5118] el0_svc+0x78/0x1e0 [ 80.708628][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.709366][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.710278][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.711866][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.712876][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.714326][ T5118] Call trace: [ 80.714773][ T5118] dump_backtrace+0x0/0x43c [ 80.715371][ T5118] show_stack+0x2c/0x3c [ 80.715959][ T5118] __dump_stack+0x30/0x40 [ 80.716571][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.717217][ T5118] dump_stack+0x1c/0x5c [ 80.717843][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.718698][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.719442][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.720159][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.720818][ T5118] inet_sendmsg+0x154/0x284 [ 80.721479][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.722111][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.722788][ T5118] invoke_syscall+0x98/0x2b8 [ 80.723448][ T5118] el0_svc_common+0x138/0x258 [ 80.724122][ T5118] do_el0_svc+0x58/0x14c [ 80.724737][ T5118] el0_svc+0x78/0x1e0 [ 80.725299][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.726014][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.727077][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.728714][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.729730][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.731121][ T5118] Call trace: [ 80.731581][ T5118] dump_backtrace+0x0/0x43c [ 80.732203][ T5118] show_stack+0x2c/0x3c [ 80.732787][ T5118] __dump_stack+0x30/0x40 [ 80.733365][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.733999][ T5118] dump_stack+0x1c/0x5c [ 80.734612][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.735382][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.736067][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.736730][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.737340][ T5118] inet_sendmsg+0x154/0x284 [ 80.737980][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.738692][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.739456][ T5118] invoke_syscall+0x98/0x2b8 [ 80.740151][ T5118] el0_svc_common+0x138/0x258 [ 80.740839][ T5118] do_el0_svc+0x58/0x14c [ 80.741493][ T5118] el0_svc+0x78/0x1e0 [ 80.742080][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.742796][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.743705][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.747352][ T5118] CPU: 0 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.748494][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.750075][ T5118] Call trace: [ 80.750571][ T5118] dump_backtrace+0x0/0x43c [ 80.751270][ T5118] show_stack+0x2c/0x3c [ 80.751944][ T5118] __dump_stack+0x30/0x40 [ 80.752614][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.753336][ T5118] dump_stack+0x1c/0x5c [ 80.753985][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.754796][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.755554][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.756315][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.756945][ T5118] inet_sendmsg+0x154/0x284 [ 80.757566][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.758211][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.758893][ T5118] invoke_syscall+0x98/0x2b8 [ 80.759551][ T5118] el0_svc_common+0x138/0x258 [ 80.760194][ T5118] do_el0_svc+0x58/0x14c [ 80.760776][ T5118] el0_svc+0x78/0x1e0 [ 80.761365][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.762128][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.763831][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.765730][ T5118] CPU: 0 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.766771][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.768223][ T5118] Call trace: [ 80.768661][ T5118] dump_backtrace+0x0/0x43c [ 80.769268][ T5118] show_stack+0x2c/0x3c [ 80.769781][ T5118] __dump_stack+0x30/0x40 [ 80.770366][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.771031][ T5118] dump_stack+0x1c/0x5c [ 80.771662][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.772462][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.773129][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.773754][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.774396][ T5118] inet_sendmsg+0x154/0x284 [ 80.775000][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.775626][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.776362][ T5118] invoke_syscall+0x98/0x2b8 [ 80.776997][ T5118] el0_svc_common+0x138/0x258 [ 80.777650][ T5118] do_el0_svc+0x58/0x14c [ 80.778288][ T5118] el0_svc+0x78/0x1e0 [ 80.778915][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.779615][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.781039][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.782667][ T5118] CPU: 0 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.783798][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.785271][ T5118] Call trace: [ 80.785760][ T5118] dump_backtrace+0x0/0x43c [ 80.786384][ T5118] show_stack+0x2c/0x3c [ 80.786907][ T5118] __dump_stack+0x30/0x40 [ 80.787529][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.788204][ T5118] dump_stack+0x1c/0x5c [ 80.788858][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.789664][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.790338][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.791027][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.791715][ T5118] inet_sendmsg+0x154/0x284 [ 80.792374][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.793053][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.793755][ T5118] invoke_syscall+0x98/0x2b8 [ 80.794419][ T5118] el0_svc_common+0x138/0x258 [ 80.795094][ T5118] do_el0_svc+0x58/0x14c [ 80.795691][ T5118] el0_svc+0x78/0x1e0 [ 80.796253][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.796968][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.798372][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.799950][ T5118] CPU: 0 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.800983][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.802387][ T5118] Call trace: [ 80.802854][ T5118] dump_backtrace+0x0/0x43c [ 80.803462][ T5118] show_stack+0x2c/0x3c [ 80.804033][ T5118] __dump_stack+0x30/0x40 [ 80.804651][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.805332][ T5118] dump_stack+0x1c/0x5c [ 80.805918][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.806761][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.807438][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.808103][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.808742][ T5118] inet_sendmsg+0x154/0x284 [ 80.809364][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.809960][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.810613][ T5118] invoke_syscall+0x98/0x2b8 [ 80.811241][ T5118] el0_svc_common+0x138/0x258 [ 80.811962][ T5118] do_el0_svc+0x58/0x14c [ 80.812597][ T5118] el0_svc+0x78/0x1e0 [ 80.813147][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.813855][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.815674][ T5118] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.817422][ T5118] CPU: 1 PID: 5118 Comm: syz.0.39 Not tainted syzkaller #0 [ 80.818501][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.820073][ T5118] Call trace: [ 80.820577][ T5118] dump_backtrace+0x0/0x43c [ 80.821277][ T5118] show_stack+0x2c/0x3c [ 80.821948][ T5118] __dump_stack+0x30/0x40 [ 80.822634][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.823320][ T5118] dump_stack+0x1c/0x5c [ 80.823977][ T5118] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.824794][ T5118] dccp_xmit_packet+0x298/0x448 [ 80.825535][ T5118] dccp_write_xmit+0x118/0x1d0 [ 80.826216][ T5118] dccp_sendmsg+0x538/0x8a8 [ 80.826862][ T5118] inet_sendmsg+0x154/0x284 [ 80.827517][ T5118] __sys_sendto+0x2e8/0x3d8 [ 80.828215][ T5118] __arm64_sys_sendto+0xd8/0xf8 [ 80.828917][ T5118] invoke_syscall+0x98/0x2b8 [ 80.829606][ T5118] el0_svc_common+0x138/0x258 [ 80.830276][ T5118] do_el0_svc+0x58/0x14c [ 80.830908][ T5118] el0_svc+0x78/0x1e0 [ 80.831464][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.832146][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.844351][ T5120] net_ratelimit: 14 callbacks suppressed [ 80.844361][ T5120] dccp_xmit_packet: Payload too large (65475) for featneg. [ 80.853094][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.855327][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.856454][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.857898][ T5120] Call trace: [ 80.858372][ T5120] dump_backtrace+0x0/0x43c [ 80.859004][ T5120] show_stack+0x2c/0x3c [ 80.859575][ T5120] __dump_stack+0x30/0x40 [ 80.860165][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.860752][ T5120] dump_stack+0x1c/0x5c [ 80.861306][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.862087][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.862789][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.863438][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.864064][ T5120] inet_sendmsg+0x154/0x284 [ 80.864677][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.865279][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.865952][ T5120] invoke_syscall+0x98/0x2b8 [ 80.866577][ T5120] el0_svc_common+0x138/0x258 [ 80.867236][ T5120] do_el0_svc+0x58/0x14c [ 80.867823][ T5120] el0_svc+0x78/0x1e0 [ 80.868323][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.868990][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.869823][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.871339][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.872290][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.873636][ T5120] Call trace: [ 80.874075][ T5120] dump_backtrace+0x0/0x43c [ 80.874748][ T5120] show_stack+0x2c/0x3c [ 80.875352][ T5120] __dump_stack+0x30/0x40 [ 80.875975][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.876690][ T5120] dump_stack+0x1c/0x5c [ 80.877303][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.878093][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.878831][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.879486][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.880058][ T5120] inet_sendmsg+0x154/0x284 [ 80.880709][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.881364][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.882049][ T5120] invoke_syscall+0x98/0x2b8 [ 80.882762][ T5120] el0_svc_common+0x138/0x258 [ 80.883493][ T5120] do_el0_svc+0x58/0x14c [ 80.884072][ T5120] el0_svc+0x78/0x1e0 [ 80.884598][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.885326][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.886660][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.888318][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.889402][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.890872][ T5120] Call trace: [ 80.891329][ T5120] dump_backtrace+0x0/0x43c [ 80.891975][ T5120] show_stack+0x2c/0x3c [ 80.892537][ T5120] __dump_stack+0x30/0x40 [ 80.893124][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.893769][ T5120] dump_stack+0x1c/0x5c 1970/01/01 00:01:20 executed programs: 26 [ 80.894332][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.895075][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.895769][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.896395][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.897077][ T5120] inet_sendmsg+0x154/0x284 [ 80.897733][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.898399][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.899088][ T5120] invoke_syscall+0x98/0x2b8 [ 80.899765][ T5120] el0_svc_common+0x138/0x258 [ 80.900417][ T5120] do_el0_svc+0x58/0x14c [ 80.901024][ T5120] el0_svc+0x78/0x1e0 [ 80.901625][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.902320][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.903270][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.906014][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.906959][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.908266][ T5120] Call trace: [ 80.908731][ T5120] dump_backtrace+0x0/0x43c [ 80.909317][ T5120] show_stack+0x2c/0x3c [ 80.909862][ T5120] __dump_stack+0x30/0x40 [ 80.910439][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.911048][ T5120] dump_stack+0x1c/0x5c [ 80.911613][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.912355][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.912983][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.913635][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.914277][ T5120] inet_sendmsg+0x154/0x284 [ 80.914921][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.915604][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.916292][ T5120] invoke_syscall+0x98/0x2b8 [ 80.916948][ T5120] el0_svc_common+0x138/0x258 [ 80.917561][ T5120] do_el0_svc+0x58/0x14c [ 80.918129][ T5120] el0_svc+0x78/0x1e0 [ 80.918652][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.919359][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.920276][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.921970][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.923001][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.924510][ T5120] Call trace: [ 80.924975][ T5120] dump_backtrace+0x0/0x43c [ 80.925613][ T5120] show_stack+0x2c/0x3c [ 80.926242][ T5120] __dump_stack+0x30/0x40 [ 80.926895][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.927579][ T5120] dump_stack+0x1c/0x5c [ 80.928204][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.929029][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.929767][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.930501][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.931164][ T5120] inet_sendmsg+0x154/0x284 [ 80.931763][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.932382][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.933074][ T5120] invoke_syscall+0x98/0x2b8 [ 80.933752][ T5120] el0_svc_common+0x138/0x258 [ 80.934469][ T5120] do_el0_svc+0x58/0x14c [ 80.935105][ T5120] el0_svc+0x78/0x1e0 [ 80.935708][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.936367][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.937128][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.938703][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.939691][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.941015][ T5120] Call trace: [ 80.941535][ T5120] dump_backtrace+0x0/0x43c [ 80.942136][ T5120] show_stack+0x2c/0x3c [ 80.942726][ T5120] __dump_stack+0x30/0x40 [ 80.943379][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.944158][ T5120] dump_stack+0x1c/0x5c [ 80.944802][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.945613][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.946316][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.947062][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.947702][ T5120] inet_sendmsg+0x154/0x284 [ 80.948305][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.948972][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.949676][ T5120] invoke_syscall+0x98/0x2b8 [ 80.950271][ T5120] el0_svc_common+0x138/0x258 [ 80.950946][ T5120] do_el0_svc+0x58/0x14c [ 80.951543][ T5120] el0_svc+0x78/0x1e0 [ 80.952105][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.952785][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.953667][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.955411][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.956437][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.957757][ T5120] Call trace: [ 80.958238][ T5120] dump_backtrace+0x0/0x43c [ 80.959003][ T5120] show_stack+0x2c/0x3c [ 80.959650][ T5120] __dump_stack+0x30/0x40 [ 80.960329][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.961021][ T5120] dump_stack+0x1c/0x5c [ 80.961602][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.962413][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.963124][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.963807][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.964442][ T5120] inet_sendmsg+0x154/0x284 [ 80.965111][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.965756][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.966546][ T5120] invoke_syscall+0x98/0x2b8 [ 80.967205][ T5120] el0_svc_common+0x138/0x258 [ 80.967995][ T5120] do_el0_svc+0x58/0x14c [ 80.968621][ T5120] el0_svc+0x78/0x1e0 [ 80.969220][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.969921][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.971099][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.972652][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.973689][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.975133][ T5120] Call trace: [ 80.975605][ T5120] dump_backtrace+0x0/0x43c [ 80.976285][ T5120] show_stack+0x2c/0x3c [ 80.976879][ T5120] __dump_stack+0x30/0x40 [ 80.977489][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.978163][ T5120] dump_stack+0x1c/0x5c [ 80.978771][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.979598][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.980378][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.981149][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.981825][ T5120] inet_sendmsg+0x154/0x284 [ 80.982518][ T5120] __sys_sendto+0x2e8/0x3d8 [ 80.983203][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 80.983925][ T5120] invoke_syscall+0x98/0x2b8 [ 80.984562][ T5120] el0_svc_common+0x138/0x258 [ 80.985226][ T5120] do_el0_svc+0x58/0x14c [ 80.985806][ T5120] el0_svc+0x78/0x1e0 [ 80.986371][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 80.987122][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 80.987998][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 80.989665][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 80.990779][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.992317][ T5120] Call trace: [ 80.992755][ T5120] dump_backtrace+0x0/0x43c [ 80.993387][ T5120] show_stack+0x2c/0x3c [ 80.994039][ T5120] __dump_stack+0x30/0x40 [ 80.994709][ T5120] dump_stack_lvl+0xf8/0x160 [ 80.995372][ T5120] dump_stack+0x1c/0x5c [ 80.996026][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 80.996823][ T5120] dccp_xmit_packet+0x298/0x448 [ 80.997532][ T5120] dccp_write_xmit+0x118/0x1d0 [ 80.998235][ T5120] dccp_sendmsg+0x538/0x8a8 [ 80.998890][ T5120] inet_sendmsg+0x154/0x284 [ 80.999552][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.000257][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.001014][ T5120] invoke_syscall+0x98/0x2b8 [ 81.001701][ T5120] el0_svc_common+0x138/0x258 [ 81.002411][ T5120] do_el0_svc+0x58/0x14c [ 81.003037][ T5120] el0_svc+0x78/0x1e0 [ 81.003590][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.004328][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.005314][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.006793][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 81.007792][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.009184][ T5120] Call trace: [ 81.009638][ T5120] dump_backtrace+0x0/0x43c [ 81.010211][ T5120] show_stack+0x2c/0x3c [ 81.010768][ T5120] __dump_stack+0x30/0x40 [ 81.011361][ T5120] dump_stack_lvl+0xf8/0x160 [ 81.012018][ T5120] dump_stack+0x1c/0x5c [ 81.012633][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.013325][ T5120] dccp_xmit_packet+0x298/0x448 [ 81.013951][ T5120] dccp_write_xmit+0x118/0x1d0 [ 81.014603][ T5120] dccp_sendmsg+0x538/0x8a8 [ 81.015261][ T5120] inet_sendmsg+0x154/0x284 [ 81.015918][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.016580][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.017271][ T5120] invoke_syscall+0x98/0x2b8 [ 81.017920][ T5120] el0_svc_common+0x138/0x258 [ 81.018645][ T5120] do_el0_svc+0x58/0x14c [ 81.019287][ T5120] el0_svc+0x78/0x1e0 [ 81.019889][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.020666][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.021576][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.023498][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 81.024549][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.025893][ T5120] Call trace: [ 81.026380][ T5120] dump_backtrace+0x0/0x43c [ 81.026987][ T5120] show_stack+0x2c/0x3c [ 81.027632][ T5120] __dump_stack+0x30/0x40 [ 81.028279][ T5120] dump_stack_lvl+0xf8/0x160 [ 81.028967][ T5120] dump_stack+0x1c/0x5c [ 81.029539][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.030419][ T5120] dccp_xmit_packet+0x298/0x448 [ 81.031127][ T5120] dccp_write_xmit+0x118/0x1d0 [ 81.031805][ T5120] dccp_sendmsg+0x538/0x8a8 [ 81.032445][ T5120] inet_sendmsg+0x154/0x284 [ 81.033063][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.033710][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.034378][ T5120] invoke_syscall+0x98/0x2b8 [ 81.035018][ T5120] el0_svc_common+0x138/0x258 [ 81.035712][ T5120] do_el0_svc+0x58/0x14c [ 81.036307][ T5120] el0_svc+0x78/0x1e0 [ 81.036896][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.037589][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.038596][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.040116][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 81.041113][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.042487][ T5120] Call trace: [ 81.042942][ T5120] dump_backtrace+0x0/0x43c [ 81.043565][ T5120] show_stack+0x2c/0x3c [ 81.044160][ T5120] __dump_stack+0x30/0x40 [ 81.044774][ T5120] dump_stack_lvl+0xf8/0x160 [ 81.045425][ T5120] dump_stack+0x1c/0x5c [ 81.046016][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.046787][ T5120] dccp_xmit_packet+0x298/0x448 [ 81.047460][ T5120] dccp_write_xmit+0x118/0x1d0 [ 81.048122][ T5120] dccp_sendmsg+0x538/0x8a8 [ 81.048713][ T5120] inet_sendmsg+0x154/0x284 [ 81.049374][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.050077][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.050805][ T5120] invoke_syscall+0x98/0x2b8 [ 81.051493][ T5120] el0_svc_common+0x138/0x258 [ 81.052161][ T5120] do_el0_svc+0x58/0x14c [ 81.052779][ T5120] el0_svc+0x78/0x1e0 [ 81.053379][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.054108][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.054935][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.056523][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 81.057557][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.058979][ T5120] Call trace: [ 81.059445][ T5120] dump_backtrace+0x0/0x43c [ 81.060102][ T5120] show_stack+0x2c/0x3c [ 81.060723][ T5120] __dump_stack+0x30/0x40 [ 81.061300][ T5120] dump_stack_lvl+0xf8/0x160 [ 81.061982][ T5120] dump_stack+0x1c/0x5c [ 81.062581][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.063318][ T5120] dccp_xmit_packet+0x298/0x448 [ 81.063982][ T5120] dccp_write_xmit+0x118/0x1d0 [ 81.064681][ T5120] dccp_sendmsg+0x538/0x8a8 [ 81.065317][ T5120] inet_sendmsg+0x154/0x284 [ 81.065913][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.066502][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.067202][ T5120] invoke_syscall+0x98/0x2b8 [ 81.067841][ T5120] el0_svc_common+0x138/0x258 [ 81.068487][ T5120] do_el0_svc+0x58/0x14c [ 81.069160][ T5120] el0_svc+0x78/0x1e0 [ 81.069682][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.070419][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.071557][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.073195][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 81.074271][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.075769][ T5120] Call trace: [ 81.076231][ T5120] dump_backtrace+0x0/0x43c [ 81.076923][ T5120] show_stack+0x2c/0x3c [ 81.077542][ T5120] __dump_stack+0x30/0x40 [ 81.078177][ T5120] dump_stack_lvl+0xf8/0x160 [ 81.078845][ T5120] dump_stack+0x1c/0x5c [ 81.079444][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.080262][ T5120] dccp_xmit_packet+0x298/0x448 [ 81.081019][ T5120] dccp_write_xmit+0x118/0x1d0 [ 81.081709][ T5120] dccp_sendmsg+0x538/0x8a8 [ 81.082414][ T5120] inet_sendmsg+0x154/0x284 [ 81.083040][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.083731][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.084487][ T5120] invoke_syscall+0x98/0x2b8 [ 81.085160][ T5120] el0_svc_common+0x138/0x258 [ 81.085797][ T5120] do_el0_svc+0x58/0x14c [ 81.086395][ T5120] el0_svc+0x78/0x1e0 [ 81.086930][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.087638][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.088868][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.090521][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 81.091644][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.093157][ T5120] Call trace: [ 81.093623][ T5120] dump_backtrace+0x0/0x43c [ 81.094303][ T5120] show_stack+0x2c/0x3c [ 81.094876][ T5120] __dump_stack+0x30/0x40 [ 81.095508][ T5120] dump_stack_lvl+0xf8/0x160 [ 81.096115][ T5120] dump_stack+0x1c/0x5c [ 81.096737][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.097509][ T5120] dccp_xmit_packet+0x298/0x448 [ 81.098212][ T5120] dccp_write_xmit+0x118/0x1d0 [ 81.098925][ T5120] dccp_sendmsg+0x538/0x8a8 [ 81.099620][ T5120] inet_sendmsg+0x154/0x284 [ 81.100262][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.100915][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.101580][ T5120] invoke_syscall+0x98/0x2b8 [ 81.102267][ T5120] el0_svc_common+0x138/0x258 [ 81.102887][ T5120] do_el0_svc+0x58/0x14c [ 81.103483][ T5120] el0_svc+0x78/0x1e0 [ 81.104060][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.104799][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.105588][ T5120] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.107145][ T5120] CPU: 1 PID: 5120 Comm: syz.0.40 Not tainted syzkaller #0 [ 81.108126][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.109570][ T5120] Call trace: [ 81.110027][ T5120] dump_backtrace+0x0/0x43c [ 81.110698][ T5120] show_stack+0x2c/0x3c [ 81.111290][ T5120] __dump_stack+0x30/0x40 [ 81.111913][ T5120] dump_stack_lvl+0xf8/0x160 [ 81.112590][ T5120] dump_stack+0x1c/0x5c [ 81.113176][ T5120] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.113943][ T5120] dccp_xmit_packet+0x298/0x448 [ 81.114672][ T5120] dccp_write_xmit+0x118/0x1d0 [ 81.115340][ T5120] dccp_sendmsg+0x538/0x8a8 [ 81.115974][ T5120] inet_sendmsg+0x154/0x284 [ 81.116613][ T5120] __sys_sendto+0x2e8/0x3d8 [ 81.117257][ T5120] __arm64_sys_sendto+0xd8/0xf8 [ 81.117945][ T5120] invoke_syscall+0x98/0x2b8 [ 81.118608][ T5120] el0_svc_common+0x138/0x258 [ 81.119360][ T5120] do_el0_svc+0x58/0x14c [ 81.119968][ T5120] el0_svc+0x78/0x1e0 [ 81.120504][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 81.121241][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 81.136262][ T5122] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.143698][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.145757][ T5122] CPU: 1 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.146842][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.148342][ T5122] Call trace: [ 81.148808][ T5122] dump_backtrace+0x0/0x43c [ 81.149460][ T5122] show_stack+0x2c/0x3c [ 81.150075][ T5122] __dump_stack+0x30/0x40 [ 81.150720][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.151390][ T5122] dump_stack+0x1c/0x5c [ 81.151947][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.152689][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.153348][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.154055][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.154683][ T5122] inet_sendmsg+0x154/0x284 [ 81.155333][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.155937][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.156606][ T5122] invoke_syscall+0x98/0x2b8 [ 81.157207][ T5122] el0_svc_common+0x138/0x258 [ 81.157913][ T5122] do_el0_svc+0x58/0x14c [ 81.158544][ T5122] el0_svc+0x78/0x1e0 [ 81.159140][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.159965][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.161472][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.163109][ T5122] CPU: 1 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.164153][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.165725][ T5122] Call trace: [ 81.166202][ T5122] dump_backtrace+0x0/0x43c [ 81.166931][ T5122] show_stack+0x2c/0x3c [ 81.167587][ T5122] __dump_stack+0x30/0x40 [ 81.168230][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.168914][ T5122] dump_stack+0x1c/0x5c [ 81.169530][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.170375][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.171178][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.171936][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.172589][ T5122] inet_sendmsg+0x154/0x284 [ 81.173249][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.173906][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.174603][ T5122] invoke_syscall+0x98/0x2b8 [ 81.175272][ T5122] el0_svc_common+0x138/0x258 [ 81.175963][ T5122] do_el0_svc+0x58/0x14c [ 81.176607][ T5122] el0_svc+0x78/0x1e0 [ 81.177151][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.177934][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.179823][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.181516][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.182653][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.184115][ T5122] Call trace: [ 81.184585][ T5122] dump_backtrace+0x0/0x43c [ 81.185294][ T5122] show_stack+0x2c/0x3c [ 81.185890][ T5122] __dump_stack+0x30/0x40 [ 81.186530][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.187191][ T5122] dump_stack+0x1c/0x5c [ 81.187771][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.188548][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.189207][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.189878][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.190506][ T5122] inet_sendmsg+0x154/0x284 [ 81.191144][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.191825][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.192500][ T5122] invoke_syscall+0x98/0x2b8 [ 81.193164][ T5122] el0_svc_common+0x138/0x258 [ 81.193829][ T5122] do_el0_svc+0x58/0x14c [ 81.194458][ T5122] el0_svc+0x78/0x1e0 [ 81.195011][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.195709][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.196669][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.198259][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.199227][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.200568][ T5122] Call trace: [ 81.201012][ T5122] dump_backtrace+0x0/0x43c [ 81.201615][ T5122] show_stack+0x2c/0x3c [ 81.202183][ T5122] __dump_stack+0x30/0x40 [ 81.202853][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.203541][ T5122] dump_stack+0x1c/0x5c [ 81.204149][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.204943][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.205690][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.206387][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.206986][ T5122] inet_sendmsg+0x154/0x284 [ 81.207608][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.208279][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.208912][ T5122] invoke_syscall+0x98/0x2b8 [ 81.209587][ T5122] el0_svc_common+0x138/0x258 [ 81.210261][ T5122] do_el0_svc+0x58/0x14c [ 81.210902][ T5122] el0_svc+0x78/0x1e0 [ 81.211465][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.212155][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.213033][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.214602][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.215597][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.217139][ T5122] Call trace: [ 81.217588][ T5122] dump_backtrace+0x0/0x43c [ 81.218271][ T5122] show_stack+0x2c/0x3c [ 81.218900][ T5122] __dump_stack+0x30/0x40 [ 81.219509][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.220157][ T5122] dump_stack+0x1c/0x5c [ 81.220753][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.221559][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.222245][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.222919][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.223576][ T5122] inet_sendmsg+0x154/0x284 [ 81.224276][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.224901][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.225548][ T5122] invoke_syscall+0x98/0x2b8 [ 81.226242][ T5122] el0_svc_common+0x138/0x258 [ 81.226857][ T5122] do_el0_svc+0x58/0x14c [ 81.227466][ T5122] el0_svc+0x78/0x1e0 [ 81.227998][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.228656][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.229747][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.231322][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.232268][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.233585][ T5122] Call trace: [ 81.234075][ T5122] dump_backtrace+0x0/0x43c [ 81.234721][ T5122] show_stack+0x2c/0x3c [ 81.235374][ T5122] __dump_stack+0x30/0x40 [ 81.236025][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.236702][ T5122] dump_stack+0x1c/0x5c [ 81.237291][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.238105][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.238888][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.239550][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.240192][ T5122] inet_sendmsg+0x154/0x284 [ 81.240830][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.241451][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.242126][ T5122] invoke_syscall+0x98/0x2b8 [ 81.242824][ T5122] el0_svc_common+0x138/0x258 [ 81.243523][ T5122] do_el0_svc+0x58/0x14c [ 81.244124][ T5122] el0_svc+0x78/0x1e0 [ 81.244712][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.245442][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.246232][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.247793][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.248809][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.250138][ T5122] Call trace: [ 81.250568][ T5122] dump_backtrace+0x0/0x43c [ 81.251189][ T5122] show_stack+0x2c/0x3c [ 81.251752][ T5122] __dump_stack+0x30/0x40 [ 81.252343][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.252940][ T5122] dump_stack+0x1c/0x5c [ 81.253594][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.254303][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.254978][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.255674][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.256276][ T5122] inet_sendmsg+0x154/0x284 [ 81.256882][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.257487][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.258156][ T5122] invoke_syscall+0x98/0x2b8 [ 81.258751][ T5122] el0_svc_common+0x138/0x258 [ 81.259377][ T5122] do_el0_svc+0x58/0x14c [ 81.259965][ T5122] el0_svc+0x78/0x1e0 [ 81.260502][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.261199][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.262000][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.263423][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.264420][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.265796][ T5122] Call trace: [ 81.266253][ T5122] dump_backtrace+0x0/0x43c [ 81.266926][ T5122] show_stack+0x2c/0x3c [ 81.267487][ T5122] __dump_stack+0x30/0x40 [ 81.268091][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.268730][ T5122] dump_stack+0x1c/0x5c [ 81.269326][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.270077][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.270763][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.271430][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.272052][ T5122] inet_sendmsg+0x154/0x284 [ 81.272721][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.273369][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.274005][ T5122] invoke_syscall+0x98/0x2b8 [ 81.274603][ T5122] el0_svc_common+0x138/0x258 [ 81.275256][ T5122] do_el0_svc+0x58/0x14c [ 81.275879][ T5122] el0_svc+0x78/0x1e0 [ 81.276482][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.277160][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.278010][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.279575][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.280509][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.281905][ T5122] Call trace: [ 81.282358][ T5122] dump_backtrace+0x0/0x43c [ 81.282905][ T5122] show_stack+0x2c/0x3c [ 81.283427][ T5122] __dump_stack+0x30/0x40 [ 81.283989][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.284629][ T5122] dump_stack+0x1c/0x5c [ 81.285234][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.286021][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.286730][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.287413][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.288055][ T5122] inet_sendmsg+0x154/0x284 [ 81.288699][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.289323][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.290026][ T5122] invoke_syscall+0x98/0x2b8 [ 81.290692][ T5122] el0_svc_common+0x138/0x258 [ 81.291377][ T5122] do_el0_svc+0x58/0x14c [ 81.292019][ T5122] el0_svc+0x78/0x1e0 [ 81.292612][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.293357][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.294237][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.295906][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.297013][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.298534][ T5122] Call trace: [ 81.299022][ T5122] dump_backtrace+0x0/0x43c [ 81.299669][ T5122] show_stack+0x2c/0x3c [ 81.300333][ T5122] __dump_stack+0x30/0x40 [ 81.301013][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.301734][ T5122] dump_stack+0x1c/0x5c [ 81.302405][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.303194][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.303917][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.304597][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.305238][ T5122] inet_sendmsg+0x154/0x284 [ 81.305907][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.306540][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.307256][ T5122] invoke_syscall+0x98/0x2b8 [ 81.307970][ T5122] el0_svc_common+0x138/0x258 [ 81.308602][ T5122] do_el0_svc+0x58/0x14c [ 81.309218][ T5122] el0_svc+0x78/0x1e0 [ 81.309790][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.310481][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.311428][ T5122] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.312974][ T5122] CPU: 0 PID: 5122 Comm: syz.0.41 Not tainted syzkaller #0 [ 81.313954][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.315425][ T5122] Call trace: [ 81.315884][ T5122] dump_backtrace+0x0/0x43c [ 81.316559][ T5122] show_stack+0x2c/0x3c [ 81.317200][ T5122] __dump_stack+0x30/0x40 [ 81.317846][ T5122] dump_stack_lvl+0xf8/0x160 [ 81.318468][ T5122] dump_stack+0x1c/0x5c [ 81.319078][ T5122] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.319851][ T5122] dccp_xmit_packet+0x298/0x448 [ 81.320552][ T5122] dccp_write_xmit+0x118/0x1d0 [ 81.321219][ T5122] dccp_sendmsg+0x538/0x8a8 [ 81.321908][ T5122] inet_sendmsg+0x154/0x284 [ 81.322571][ T5122] __sys_sendto+0x2e8/0x3d8 [ 81.323162][ T5122] __arm64_sys_sendto+0xd8/0xf8 [ 81.323801][ T5122] invoke_syscall+0x98/0x2b8 [ 81.324438][ T5122] el0_svc_common+0x138/0x258 [ 81.325093][ T5122] do_el0_svc+0x58/0x14c [ 81.325739][ T5122] el0_svc+0x78/0x1e0 [ 81.326283][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.326970][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.339295][ T5124] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.346954][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.348568][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.349674][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.351218][ T5124] Call trace: [ 81.351691][ T5124] dump_backtrace+0x0/0x43c [ 81.352352][ T5124] show_stack+0x2c/0x3c [ 81.352955][ T5124] __dump_stack+0x30/0x40 [ 81.353564][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.354187][ T5124] dump_stack+0x1c/0x5c [ 81.354815][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.355590][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.356326][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.357020][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.357680][ T5124] inet_sendmsg+0x154/0x284 [ 81.358337][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.359005][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.359715][ T5124] invoke_syscall+0x98/0x2b8 [ 81.360371][ T5124] el0_svc_common+0x138/0x258 [ 81.361023][ T5124] do_el0_svc+0x58/0x14c [ 81.361627][ T5124] el0_svc+0x78/0x1e0 [ 81.362190][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.362943][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.363795][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.365801][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.366774][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.368242][ T5124] Call trace: [ 81.368756][ T5124] dump_backtrace+0x0/0x43c [ 81.369394][ T5124] show_stack+0x2c/0x3c [ 81.369952][ T5124] __dump_stack+0x30/0x40 [ 81.370546][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.371216][ T5124] dump_stack+0x1c/0x5c [ 81.371799][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.372612][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.373315][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.374007][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.374720][ T5124] inet_sendmsg+0x154/0x284 [ 81.375355][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.376045][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.376738][ T5124] invoke_syscall+0x98/0x2b8 [ 81.377444][ T5124] el0_svc_common+0x138/0x258 [ 81.378101][ T5124] do_el0_svc+0x58/0x14c [ 81.378729][ T5124] el0_svc+0x78/0x1e0 [ 81.379300][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.379980][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.380781][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.382278][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.383222][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.384527][ T5124] Call trace: [ 81.384967][ T5124] dump_backtrace+0x0/0x43c [ 81.385615][ T5124] show_stack+0x2c/0x3c [ 81.386203][ T5124] __dump_stack+0x30/0x40 [ 81.386808][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.387458][ T5124] dump_stack+0x1c/0x5c [ 81.388024][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.388775][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.389496][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.390120][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.390801][ T5124] inet_sendmsg+0x154/0x284 [ 81.391422][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.392046][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.392758][ T5124] invoke_syscall+0x98/0x2b8 [ 81.393465][ T5124] el0_svc_common+0x138/0x258 [ 81.394196][ T5124] do_el0_svc+0x58/0x14c [ 81.394750][ T5124] el0_svc+0x78/0x1e0 [ 81.395311][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.396000][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.396837][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.398415][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.399398][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.400784][ T5124] Call trace: [ 81.401247][ T5124] dump_backtrace+0x0/0x43c [ 81.401910][ T5124] show_stack+0x2c/0x3c [ 81.402509][ T5124] __dump_stack+0x30/0x40 [ 81.403128][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.403818][ T5124] dump_stack+0x1c/0x5c [ 81.404433][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.405201][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.405889][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.406532][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.407165][ T5124] inet_sendmsg+0x154/0x284 [ 81.407823][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.408437][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.409145][ T5124] invoke_syscall+0x98/0x2b8 [ 81.409769][ T5124] el0_svc_common+0x138/0x258 [ 81.410456][ T5124] do_el0_svc+0x58/0x14c [ 81.411053][ T5124] el0_svc+0x78/0x1e0 [ 81.411609][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.412338][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.413203][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.414741][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.415731][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.417033][ T5124] Call trace: [ 81.417508][ T5124] dump_backtrace+0x0/0x43c [ 81.418145][ T5124] show_stack+0x2c/0x3c [ 81.418779][ T5124] __dump_stack+0x30/0x40 [ 81.419397][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.420077][ T5124] dump_stack+0x1c/0x5c [ 81.420721][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.421543][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.422230][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.422887][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.423527][ T5124] inet_sendmsg+0x154/0x284 [ 81.424152][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.424820][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.425554][ T5124] invoke_syscall+0x98/0x2b8 [ 81.426275][ T5124] el0_svc_common+0x138/0x258 [ 81.426885][ T5124] do_el0_svc+0x58/0x14c [ 81.427471][ T5124] el0_svc+0x78/0x1e0 [ 81.428059][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.428839][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.429693][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.431260][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.432258][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.433690][ T5124] Call trace: [ 81.434145][ T5124] dump_backtrace+0x0/0x43c [ 81.434788][ T5124] show_stack+0x2c/0x3c [ 81.435388][ T5124] __dump_stack+0x30/0x40 [ 81.436046][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.436726][ T5124] dump_stack+0x1c/0x5c [ 81.437346][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.438121][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.438820][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.439502][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.440141][ T5124] inet_sendmsg+0x154/0x284 [ 81.440730][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.441372][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.442095][ T5124] invoke_syscall+0x98/0x2b8 [ 81.442740][ T5124] el0_svc_common+0x138/0x258 [ 81.443424][ T5124] do_el0_svc+0x58/0x14c [ 81.444038][ T5124] el0_svc+0x78/0x1e0 [ 81.444571][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.445278][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.446155][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.447734][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.448653][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.450023][ T5124] Call trace: [ 81.450452][ T5124] dump_backtrace+0x0/0x43c [ 81.451069][ T5124] show_stack+0x2c/0x3c [ 81.451656][ T5124] __dump_stack+0x30/0x40 [ 81.452261][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.452908][ T5124] dump_stack+0x1c/0x5c [ 81.453462][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.454167][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.454852][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.455531][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.456188][ T5124] inet_sendmsg+0x154/0x284 [ 81.456856][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.457520][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.458203][ T5124] invoke_syscall+0x98/0x2b8 [ 81.458840][ T5124] el0_svc_common+0x138/0x258 [ 81.459473][ T5124] do_el0_svc+0x58/0x14c [ 81.460081][ T5124] el0_svc+0x78/0x1e0 [ 81.460677][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.461391][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.462216][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.463794][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.464843][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.466219][ T5124] Call trace: [ 81.466675][ T5124] dump_backtrace+0x0/0x43c [ 81.467309][ T5124] show_stack+0x2c/0x3c [ 81.467874][ T5124] __dump_stack+0x30/0x40 [ 81.468462][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.469109][ T5124] dump_stack+0x1c/0x5c [ 81.469695][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.470509][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.471144][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.471810][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.472435][ T5124] inet_sendmsg+0x154/0x284 [ 81.473122][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.473792][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.474506][ T5124] invoke_syscall+0x98/0x2b8 [ 81.475179][ T5124] el0_svc_common+0x138/0x258 [ 81.475855][ T5124] do_el0_svc+0x58/0x14c [ 81.476462][ T5124] el0_svc+0x78/0x1e0 [ 81.477032][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.477714][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.478496][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.480071][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.481128][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.482555][ T5124] Call trace: [ 81.483016][ T5124] dump_backtrace+0x0/0x43c [ 81.483668][ T5124] show_stack+0x2c/0x3c [ 81.484270][ T5124] __dump_stack+0x30/0x40 [ 81.484890][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.485566][ T5124] dump_stack+0x1c/0x5c [ 81.486150][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.486943][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.487669][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.488401][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.489042][ T5124] inet_sendmsg+0x154/0x284 [ 81.489689][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.490291][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.490979][ T5124] invoke_syscall+0x98/0x2b8 [ 81.491593][ T5124] el0_svc_common+0x138/0x258 [ 81.492293][ T5124] do_el0_svc+0x58/0x14c [ 81.492869][ T5124] el0_svc+0x78/0x1e0 [ 81.493432][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.494127][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.494953][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.496587][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.497632][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.499042][ T5124] Call trace: [ 81.499484][ T5124] dump_backtrace+0x0/0x43c [ 81.500123][ T5124] show_stack+0x2c/0x3c [ 81.500707][ T5124] __dump_stack+0x30/0x40 [ 81.501307][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.501951][ T5124] dump_stack+0x1c/0x5c [ 81.502554][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.503288][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.503990][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.504714][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.505367][ T5124] inet_sendmsg+0x154/0x284 [ 81.505994][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.506618][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.507311][ T5124] invoke_syscall+0x98/0x2b8 [ 81.507981][ T5124] el0_svc_common+0x138/0x258 [ 81.508659][ T5124] do_el0_svc+0x58/0x14c [ 81.509239][ T5124] el0_svc+0x78/0x1e0 [ 81.509854][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.510569][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.511364][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.512898][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.513820][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.515145][ T5124] Call trace: [ 81.515626][ T5124] dump_backtrace+0x0/0x43c [ 81.516298][ T5124] show_stack+0x2c/0x3c [ 81.516895][ T5124] __dump_stack+0x30/0x40 [ 81.517609][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.518287][ T5124] dump_stack+0x1c/0x5c [ 81.518898][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.519720][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.520459][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.521116][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.521733][ T5124] inet_sendmsg+0x154/0x284 [ 81.522377][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.523055][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.523756][ T5124] invoke_syscall+0x98/0x2b8 [ 81.524366][ T5124] el0_svc_common+0x138/0x258 [ 81.525054][ T5124] do_el0_svc+0x58/0x14c [ 81.525702][ T5124] el0_svc+0x78/0x1e0 [ 81.526324][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.527056][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.527876][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.529416][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.530388][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.531765][ T5124] Call trace: [ 81.532247][ T5124] dump_backtrace+0x0/0x43c [ 81.532912][ T5124] show_stack+0x2c/0x3c [ 81.533475][ T5124] __dump_stack+0x30/0x40 [ 81.534070][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.534675][ T5124] dump_stack+0x1c/0x5c [ 81.535287][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.536087][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.536792][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.537475][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.538113][ T5124] inet_sendmsg+0x154/0x284 [ 81.538833][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.539458][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.540146][ T5124] invoke_syscall+0x98/0x2b8 [ 81.540780][ T5124] el0_svc_common+0x138/0x258 [ 81.541481][ T5124] do_el0_svc+0x58/0x14c [ 81.542106][ T5124] el0_svc+0x78/0x1e0 [ 81.542659][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.543383][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.544207][ T5124] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.545677][ T5124] CPU: 0 PID: 5124 Comm: syz.0.42 Not tainted syzkaller #0 [ 81.546687][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.548085][ T5124] Call trace: [ 81.548513][ T5124] dump_backtrace+0x0/0x43c [ 81.549149][ T5124] show_stack+0x2c/0x3c [ 81.549712][ T5124] __dump_stack+0x30/0x40 [ 81.550354][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.551012][ T5124] dump_stack+0x1c/0x5c [ 81.551610][ T5124] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.552336][ T5124] dccp_xmit_packet+0x298/0x448 [ 81.553025][ T5124] dccp_write_xmit+0x118/0x1d0 [ 81.553668][ T5124] dccp_sendmsg+0x538/0x8a8 [ 81.554279][ T5124] inet_sendmsg+0x154/0x284 [ 81.554867][ T5124] __sys_sendto+0x2e8/0x3d8 [ 81.555507][ T5124] __arm64_sys_sendto+0xd8/0xf8 [ 81.556157][ T5124] invoke_syscall+0x98/0x2b8 [ 81.556776][ T5124] el0_svc_common+0x138/0x258 [ 81.557454][ T5124] do_el0_svc+0x58/0x14c [ 81.558054][ T5124] el0_svc+0x78/0x1e0 [ 81.558646][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.559332][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.570629][ T5126] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.578257][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.579904][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.580890][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.582420][ T5126] Call trace: [ 81.582911][ T5126] dump_backtrace+0x0/0x43c [ 81.583619][ T5126] show_stack+0x2c/0x3c [ 81.584199][ T5126] __dump_stack+0x30/0x40 [ 81.584838][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.585611][ T5126] dump_stack+0x1c/0x5c [ 81.586273][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.587136][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.587869][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.588587][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.589272][ T5126] inet_sendmsg+0x154/0x284 [ 81.589979][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.590668][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.591349][ T5126] invoke_syscall+0x98/0x2b8 [ 81.591997][ T5126] el0_svc_common+0x138/0x258 [ 81.592667][ T5126] do_el0_svc+0x58/0x14c [ 81.593300][ T5126] el0_svc+0x78/0x1e0 [ 81.593882][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.594620][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.595697][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.597346][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.598391][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.599842][ T5126] Call trace: [ 81.600325][ T5126] dump_backtrace+0x0/0x43c [ 81.600999][ T5126] show_stack+0x2c/0x3c [ 81.601575][ T5126] __dump_stack+0x30/0x40 [ 81.602219][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.602885][ T5126] dump_stack+0x1c/0x5c [ 81.603506][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.604320][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.605024][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.605724][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.606364][ T5126] inet_sendmsg+0x154/0x284 [ 81.607014][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.607643][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.608340][ T5126] invoke_syscall+0x98/0x2b8 [ 81.608967][ T5126] el0_svc_common+0x138/0x258 [ 81.609625][ T5126] do_el0_svc+0x58/0x14c [ 81.610209][ T5126] el0_svc+0x78/0x1e0 [ 81.610792][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.611490][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.612537][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.614073][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.615141][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.616544][ T5126] Call trace: [ 81.616991][ T5126] dump_backtrace+0x0/0x43c [ 81.617625][ T5126] show_stack+0x2c/0x3c [ 81.618210][ T5126] __dump_stack+0x30/0x40 [ 81.618835][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.619505][ T5126] dump_stack+0x1c/0x5c [ 81.620115][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.620923][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.621602][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.622292][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.622896][ T5126] inet_sendmsg+0x154/0x284 [ 81.623542][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.624209][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.624900][ T5126] invoke_syscall+0x98/0x2b8 [ 81.625572][ T5126] el0_svc_common+0x138/0x258 [ 81.626228][ T5126] do_el0_svc+0x58/0x14c [ 81.626835][ T5126] el0_svc+0x78/0x1e0 [ 81.627427][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.628200][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.629094][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.630748][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.631802][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.633303][ T5126] Call trace: [ 81.633804][ T5126] dump_backtrace+0x0/0x43c [ 81.634496][ T5126] show_stack+0x2c/0x3c [ 81.635105][ T5126] __dump_stack+0x30/0x40 [ 81.635743][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.636392][ T5126] dump_stack+0x1c/0x5c [ 81.637006][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.637801][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.638519][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.639244][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.639869][ T5126] inet_sendmsg+0x154/0x284 [ 81.640476][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.641094][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.641829][ T5126] invoke_syscall+0x98/0x2b8 [ 81.642514][ T5126] el0_svc_common+0x138/0x258 [ 81.643169][ T5126] do_el0_svc+0x58/0x14c [ 81.643791][ T5126] el0_svc+0x78/0x1e0 [ 81.644366][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.645011][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.645912][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.647558][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.648571][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.649994][ T5126] Call trace: [ 81.650482][ T5126] dump_backtrace+0x0/0x43c [ 81.651099][ T5126] show_stack+0x2c/0x3c [ 81.651683][ T5126] __dump_stack+0x30/0x40 [ 81.652304][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.652951][ T5126] dump_stack+0x1c/0x5c [ 81.653542][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.654356][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.655107][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.655811][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.656429][ T5126] inet_sendmsg+0x154/0x284 [ 81.657090][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.657768][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.658497][ T5126] invoke_syscall+0x98/0x2b8 [ 81.659192][ T5126] el0_svc_common+0x138/0x258 [ 81.659884][ T5126] do_el0_svc+0x58/0x14c [ 81.660510][ T5126] el0_svc+0x78/0x1e0 [ 81.661148][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.661892][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.662738][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.664352][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.665396][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.666833][ T5126] Call trace: [ 81.667286][ T5126] dump_backtrace+0x0/0x43c [ 81.667934][ T5126] show_stack+0x2c/0x3c [ 81.668546][ T5126] __dump_stack+0x30/0x40 [ 81.669163][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.669880][ T5126] dump_stack+0x1c/0x5c [ 81.670467][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.671243][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.671984][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.672717][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.673411][ T5126] inet_sendmsg+0x154/0x284 [ 81.674089][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.674755][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.675478][ T5126] invoke_syscall+0x98/0x2b8 [ 81.676217][ T5126] el0_svc_common+0x138/0x258 [ 81.676942][ T5126] do_el0_svc+0x58/0x14c [ 81.677566][ T5126] el0_svc+0x78/0x1e0 [ 81.678152][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.678891][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.679764][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.681372][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.682381][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.683829][ T5126] Call trace: [ 81.684301][ T5126] dump_backtrace+0x0/0x43c [ 81.684972][ T5126] show_stack+0x2c/0x3c [ 81.685612][ T5126] __dump_stack+0x30/0x40 [ 81.686206][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.686883][ T5126] dump_stack+0x1c/0x5c [ 81.687471][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.688222][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.688994][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.689706][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.690350][ T5126] inet_sendmsg+0x154/0x284 [ 81.690992][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.691619][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.692317][ T5126] invoke_syscall+0x98/0x2b8 [ 81.693004][ T5126] el0_svc_common+0x138/0x258 [ 81.693717][ T5126] do_el0_svc+0x58/0x14c [ 81.694363][ T5126] el0_svc+0x78/0x1e0 [ 81.694986][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.695727][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.696629][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.698130][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.699180][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.700516][ T5126] Call trace: [ 81.700936][ T5126] dump_backtrace+0x0/0x43c [ 81.701531][ T5126] show_stack+0x2c/0x3c [ 81.702127][ T5126] __dump_stack+0x30/0x40 [ 81.702776][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.703421][ T5126] dump_stack+0x1c/0x5c [ 81.703968][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.704707][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.705407][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.706089][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.706721][ T5126] inet_sendmsg+0x154/0x284 [ 81.707315][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.707951][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.708653][ T5126] invoke_syscall+0x98/0x2b8 [ 81.709300][ T5126] el0_svc_common+0x138/0x258 [ 81.709963][ T5126] do_el0_svc+0x58/0x14c [ 81.710550][ T5126] el0_svc+0x78/0x1e0 [ 81.711114][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.711889][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.712775][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.714599][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.715668][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.717121][ T5126] Call trace: [ 81.717581][ T5126] dump_backtrace+0x0/0x43c [ 81.718165][ T5126] show_stack+0x2c/0x3c [ 81.718760][ T5126] __dump_stack+0x30/0x40 [ 81.719375][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.720080][ T5126] dump_stack+0x1c/0x5c [ 81.720663][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.721374][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.721996][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.722774][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.723367][ T5126] inet_sendmsg+0x154/0x284 [ 81.723993][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.724630][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.725349][ T5126] invoke_syscall+0x98/0x2b8 [ 81.726015][ T5126] el0_svc_common+0x138/0x258 [ 81.726662][ T5126] do_el0_svc+0x58/0x14c [ 81.727299][ T5126] el0_svc+0x78/0x1e0 [ 81.727909][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.728635][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.729461][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.730943][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.731917][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.733314][ T5126] Call trace: [ 81.733748][ T5126] dump_backtrace+0x0/0x43c [ 81.734396][ T5126] show_stack+0x2c/0x3c [ 81.734987][ T5126] __dump_stack+0x30/0x40 [ 81.735591][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.736204][ T5126] dump_stack+0x1c/0x5c [ 81.736821][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.737555][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.738248][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.738918][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.739551][ T5126] inet_sendmsg+0x154/0x284 [ 81.740244][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.740953][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.741665][ T5126] invoke_syscall+0x98/0x2b8 [ 81.742391][ T5126] el0_svc_common+0x138/0x258 [ 81.743044][ T5126] do_el0_svc+0x58/0x14c [ 81.743671][ T5126] el0_svc+0x78/0x1e0 [ 81.744213][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.744954][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.745765][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.747208][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.748173][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.749546][ T5126] Call trace: [ 81.749981][ T5126] dump_backtrace+0x0/0x43c [ 81.750651][ T5126] show_stack+0x2c/0x3c [ 81.751232][ T5126] __dump_stack+0x30/0x40 [ 81.751829][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.752419][ T5126] dump_stack+0x1c/0x5c [ 81.752992][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.753800][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.754503][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.755153][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.755802][ T5126] inet_sendmsg+0x154/0x284 [ 81.756480][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.757101][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.757883][ T5126] invoke_syscall+0x98/0x2b8 [ 81.758572][ T5126] el0_svc_common+0x138/0x258 [ 81.759204][ T5126] do_el0_svc+0x58/0x14c [ 81.759790][ T5126] el0_svc+0x78/0x1e0 [ 81.760400][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.761065][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.761925][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.763534][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.764563][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.765948][ T5126] Call trace: [ 81.766395][ T5126] dump_backtrace+0x0/0x43c [ 81.767070][ T5126] show_stack+0x2c/0x3c [ 81.767666][ T5126] __dump_stack+0x30/0x40 [ 81.768329][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.768930][ T5126] dump_stack+0x1c/0x5c [ 81.769503][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.770287][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.770993][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.771697][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.772327][ T5126] inet_sendmsg+0x154/0x284 [ 81.772990][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.773642][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.774298][ T5126] invoke_syscall+0x98/0x2b8 [ 81.774949][ T5126] el0_svc_common+0x138/0x258 [ 81.775645][ T5126] do_el0_svc+0x58/0x14c [ 81.776251][ T5126] el0_svc+0x78/0x1e0 [ 81.776818][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.777556][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.778302][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.779721][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.780658][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.781955][ T5126] Call trace: [ 81.782402][ T5126] dump_backtrace+0x0/0x43c [ 81.782994][ T5126] show_stack+0x2c/0x3c [ 81.783570][ T5126] __dump_stack+0x30/0x40 [ 81.784183][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.784839][ T5126] dump_stack+0x1c/0x5c [ 81.785449][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.786231][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.786925][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.787586][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.788203][ T5126] inet_sendmsg+0x154/0x284 [ 81.788902][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.789548][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.790212][ T5126] invoke_syscall+0x98/0x2b8 [ 81.790916][ T5126] el0_svc_common+0x138/0x258 [ 81.791666][ T5126] do_el0_svc+0x58/0x14c [ 81.792321][ T5126] el0_svc+0x78/0x1e0 [ 81.792878][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.793602][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.794513][ T5126] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.796102][ T5126] CPU: 0 PID: 5126 Comm: syz.0.43 Not tainted syzkaller #0 [ 81.797128][ T5126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.798448][ T5126] Call trace: [ 81.798865][ T5126] dump_backtrace+0x0/0x43c [ 81.799551][ T5126] show_stack+0x2c/0x3c [ 81.800127][ T5126] __dump_stack+0x30/0x40 [ 81.800726][ T5126] dump_stack_lvl+0xf8/0x160 [ 81.801379][ T5126] dump_stack+0x1c/0x5c [ 81.801978][ T5126] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.802738][ T5126] dccp_xmit_packet+0x298/0x448 [ 81.803420][ T5126] dccp_write_xmit+0x118/0x1d0 [ 81.804081][ T5126] dccp_sendmsg+0x538/0x8a8 [ 81.804715][ T5126] inet_sendmsg+0x154/0x284 [ 81.805360][ T5126] __sys_sendto+0x2e8/0x3d8 [ 81.805997][ T5126] __arm64_sys_sendto+0xd8/0xf8 [ 81.806687][ T5126] invoke_syscall+0x98/0x2b8 [ 81.807370][ T5126] el0_svc_common+0x138/0x258 [ 81.808077][ T5126] do_el0_svc+0x58/0x14c [ 81.808717][ T5126] el0_svc+0x78/0x1e0 [ 81.809276][ T5126] el0t_64_sync_handler+0xcc/0xe4 [ 81.810006][ T5126] el0t_64_sync+0x1a0/0x1a4 [ 81.823127][ T5128] dccp_xmit_packet: Payload too large (65475) for featneg. [ 81.831697][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.833354][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.834488][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.836100][ T5128] Call trace: [ 81.836602][ T5128] dump_backtrace+0x0/0x43c [ 81.837295][ T5128] show_stack+0x2c/0x3c [ 81.837916][ T5128] __dump_stack+0x30/0x40 [ 81.838596][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.839276][ T5128] dump_stack+0x1c/0x5c [ 81.839877][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.840641][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.841325][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.841977][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.842635][ T5128] inet_sendmsg+0x154/0x284 [ 81.843329][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.843966][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.844730][ T5128] invoke_syscall+0x98/0x2b8 [ 81.845371][ T5128] el0_svc_common+0x138/0x258 [ 81.846116][ T5128] do_el0_svc+0x58/0x14c [ 81.846715][ T5128] el0_svc+0x78/0x1e0 [ 81.847310][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.848016][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.849095][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.850548][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.851486][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.852843][ T5128] Call trace: [ 81.853289][ T5128] dump_backtrace+0x0/0x43c [ 81.853969][ T5128] show_stack+0x2c/0x3c [ 81.854551][ T5128] __dump_stack+0x30/0x40 [ 81.855238][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.855916][ T5128] dump_stack+0x1c/0x5c [ 81.856518][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.857307][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.858068][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.858785][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.859449][ T5128] inet_sendmsg+0x154/0x284 [ 81.860089][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.860695][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.861391][ T5128] invoke_syscall+0x98/0x2b8 [ 81.862070][ T5128] el0_svc_common+0x138/0x258 [ 81.862774][ T5128] do_el0_svc+0x58/0x14c [ 81.863413][ T5128] el0_svc+0x78/0x1e0 [ 81.863979][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.864685][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.866523][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.868116][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.869125][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.870571][ T5128] Call trace: [ 81.871035][ T5128] dump_backtrace+0x0/0x43c [ 81.871654][ T5128] show_stack+0x2c/0x3c [ 81.872241][ T5128] __dump_stack+0x30/0x40 [ 81.872878][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.873511][ T5128] dump_stack+0x1c/0x5c [ 81.874122][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.875032][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.875795][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.876500][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.877174][ T5128] inet_sendmsg+0x154/0x284 [ 81.877857][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.878505][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.879197][ T5128] invoke_syscall+0x98/0x2b8 [ 81.879800][ T5128] el0_svc_common+0x138/0x258 [ 81.880438][ T5128] do_el0_svc+0x58/0x14c [ 81.880999][ T5128] el0_svc+0x78/0x1e0 [ 81.881574][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.882293][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.883340][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.884877][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.885891][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.887283][ T5128] Call trace: [ 81.887724][ T5128] dump_backtrace+0x0/0x43c [ 81.888371][ T5128] show_stack+0x2c/0x3c [ 81.888997][ T5128] __dump_stack+0x30/0x40 [ 81.889675][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.890368][ T5128] dump_stack+0x1c/0x5c [ 81.890908][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.891734][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.892423][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.893090][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.893756][ T5128] inet_sendmsg+0x154/0x284 [ 81.894402][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.895054][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.895696][ T5128] invoke_syscall+0x98/0x2b8 [ 81.896345][ T5128] el0_svc_common+0x138/0x258 [ 81.896998][ T5128] do_el0_svc+0x58/0x14c [ 81.897540][ T5128] el0_svc+0x78/0x1e0 [ 81.898106][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.898841][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.899656][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.901224][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.902183][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.903583][ T5128] Call trace: [ 81.904007][ T5128] dump_backtrace+0x0/0x43c [ 81.904649][ T5128] show_stack+0x2c/0x3c [ 81.905251][ T5128] __dump_stack+0x30/0x40 [ 81.905892][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.906612][ T5128] dump_stack+0x1c/0x5c [ 81.907159][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.907965][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.908683][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.909343][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.909968][ T5128] inet_sendmsg+0x154/0x284 [ 81.910675][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.911352][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.912067][ T5128] invoke_syscall+0x98/0x2b8 [ 81.912768][ T5128] el0_svc_common+0x138/0x258 [ 81.913440][ T5128] do_el0_svc+0x58/0x14c [ 81.914031][ T5128] el0_svc+0x78/0x1e0 [ 81.914609][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.915302][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.916209][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.917759][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.918762][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.920096][ T5128] Call trace: [ 81.920529][ T5128] dump_backtrace+0x0/0x43c [ 81.921157][ T5128] show_stack+0x2c/0x3c [ 81.921802][ T5128] __dump_stack+0x30/0x40 [ 81.922451][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.923100][ T5128] dump_stack+0x1c/0x5c [ 81.923658][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.924429][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.925166][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.925868][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.926545][ T5128] inet_sendmsg+0x154/0x284 [ 81.927205][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.927960][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.928718][ T5128] invoke_syscall+0x98/0x2b8 [ 81.929426][ T5128] el0_svc_common+0x138/0x258 [ 81.930180][ T5128] do_el0_svc+0x58/0x14c [ 81.930778][ T5128] el0_svc+0x78/0x1e0 [ 81.931359][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.932132][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.932973][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.934536][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.935635][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.937183][ T5128] Call trace: [ 81.937651][ T5128] dump_backtrace+0x0/0x43c [ 81.938232][ T5128] show_stack+0x2c/0x3c [ 81.938828][ T5128] __dump_stack+0x30/0x40 [ 81.939437][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.940092][ T5128] dump_stack+0x1c/0x5c [ 81.940673][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.941522][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.942211][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.942890][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.943480][ T5128] inet_sendmsg+0x154/0x284 [ 81.944081][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.944739][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.945435][ T5128] invoke_syscall+0x98/0x2b8 [ 81.946116][ T5128] el0_svc_common+0x138/0x258 [ 81.946776][ T5128] do_el0_svc+0x58/0x14c [ 81.947363][ T5128] el0_svc+0x78/0x1e0 [ 81.947879][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.948582][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.949364][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.950992][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.952063][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.953475][ T5128] Call trace: [ 81.953958][ T5128] dump_backtrace+0x0/0x43c [ 81.954592][ T5128] show_stack+0x2c/0x3c [ 81.955239][ T5128] __dump_stack+0x30/0x40 [ 81.955838][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.956442][ T5128] dump_stack+0x1c/0x5c [ 81.957069][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.957794][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.958436][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.959124][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.959749][ T5128] inet_sendmsg+0x154/0x284 [ 81.960390][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.961115][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.961774][ T5128] invoke_syscall+0x98/0x2b8 [ 81.962439][ T5128] el0_svc_common+0x138/0x258 [ 81.963084][ T5128] do_el0_svc+0x58/0x14c [ 81.963676][ T5128] el0_svc+0x78/0x1e0 [ 81.964226][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.964908][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.965725][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.967342][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.968389][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.969803][ T5128] Call trace: [ 81.970291][ T5128] dump_backtrace+0x0/0x43c [ 81.970951][ T5128] show_stack+0x2c/0x3c [ 81.971529][ T5128] __dump_stack+0x30/0x40 [ 81.972145][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.972758][ T5128] dump_stack+0x1c/0x5c [ 81.973345][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.974088][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.974769][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.975469][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.976120][ T5128] inet_sendmsg+0x154/0x284 [ 81.976730][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.977376][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.978065][ T5128] invoke_syscall+0x98/0x2b8 [ 81.978771][ T5128] el0_svc_common+0x138/0x258 [ 81.979489][ T5128] do_el0_svc+0x58/0x14c [ 81.980176][ T5128] el0_svc+0x78/0x1e0 [ 81.980729][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.981452][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.982292][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 81.983855][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 81.984848][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.986303][ T5128] Call trace: [ 81.986754][ T5128] dump_backtrace+0x0/0x43c [ 81.987389][ T5128] show_stack+0x2c/0x3c [ 81.987971][ T5128] __dump_stack+0x30/0x40 [ 81.988592][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.989239][ T5128] dump_stack+0x1c/0x5c [ 81.989798][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 81.990510][ T5128] dccp_xmit_packet+0x298/0x448 [ 81.991184][ T5128] dccp_write_xmit+0x118/0x1d0 [ 81.991918][ T5128] dccp_sendmsg+0x538/0x8a8 [ 81.992602][ T5128] inet_sendmsg+0x154/0x284 [ 81.993292][ T5128] __sys_sendto+0x2e8/0x3d8 [ 81.993984][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 81.994726][ T5128] invoke_syscall+0x98/0x2b8 [ 81.995421][ T5128] el0_svc_common+0x138/0x258 [ 81.996187][ T5128] do_el0_svc+0x58/0x14c [ 81.996802][ T5128] el0_svc+0x78/0x1e0 [ 81.997384][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.998120][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.998946][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.000431][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 82.001475][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.002951][ T5128] Call trace: [ 82.003424][ T5128] dump_backtrace+0x0/0x43c [ 82.004100][ T5128] show_stack+0x2c/0x3c [ 82.004739][ T5128] __dump_stack+0x30/0x40 [ 82.005363][ T5128] dump_stack_lvl+0xf8/0x160 [ 82.006072][ T5128] dump_stack+0x1c/0x5c [ 82.006664][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.007458][ T5128] dccp_xmit_packet+0x298/0x448 [ 82.008175][ T5128] dccp_write_xmit+0x118/0x1d0 [ 82.008940][ T5128] dccp_sendmsg+0x538/0x8a8 [ 82.009594][ T5128] inet_sendmsg+0x154/0x284 [ 82.010274][ T5128] __sys_sendto+0x2e8/0x3d8 [ 82.010916][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 82.011625][ T5128] invoke_syscall+0x98/0x2b8 [ 82.012339][ T5128] el0_svc_common+0x138/0x258 [ 82.012999][ T5128] do_el0_svc+0x58/0x14c [ 82.013644][ T5128] el0_svc+0x78/0x1e0 [ 82.014182][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 82.014876][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 82.015909][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.017411][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 82.018311][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.019674][ T5128] Call trace: [ 82.020089][ T5128] dump_backtrace+0x0/0x43c [ 82.020731][ T5128] show_stack+0x2c/0x3c [ 82.021312][ T5128] __dump_stack+0x30/0x40 [ 82.021928][ T5128] dump_stack_lvl+0xf8/0x160 [ 82.022562][ T5128] dump_stack+0x1c/0x5c [ 82.023187][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.023951][ T5128] dccp_xmit_packet+0x298/0x448 [ 82.024679][ T5128] dccp_write_xmit+0x118/0x1d0 [ 82.025313][ T5128] dccp_sendmsg+0x538/0x8a8 [ 82.025975][ T5128] inet_sendmsg+0x154/0x284 [ 82.026631][ T5128] __sys_sendto+0x2e8/0x3d8 [ 82.027275][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 82.027948][ T5128] invoke_syscall+0x98/0x2b8 [ 82.028590][ T5128] el0_svc_common+0x138/0x258 [ 82.029294][ T5128] do_el0_svc+0x58/0x14c [ 82.029916][ T5128] el0_svc+0x78/0x1e0 [ 82.030475][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 82.031182][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 82.031957][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.033552][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 82.034549][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.035990][ T5128] Call trace: [ 82.036446][ T5128] dump_backtrace+0x0/0x43c [ 82.037050][ T5128] show_stack+0x2c/0x3c [ 82.037676][ T5128] __dump_stack+0x30/0x40 [ 82.038349][ T5128] dump_stack_lvl+0xf8/0x160 [ 82.039068][ T5128] dump_stack+0x1c/0x5c [ 82.039702][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.040463][ T5128] dccp_xmit_packet+0x298/0x448 [ 82.041116][ T5128] dccp_write_xmit+0x118/0x1d0 [ 82.041892][ T5128] dccp_sendmsg+0x538/0x8a8 [ 82.042611][ T5128] inet_sendmsg+0x154/0x284 [ 82.043255][ T5128] __sys_sendto+0x2e8/0x3d8 [ 82.043903][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 82.044624][ T5128] invoke_syscall+0x98/0x2b8 [ 82.045289][ T5128] el0_svc_common+0x138/0x258 [ 82.045962][ T5128] do_el0_svc+0x58/0x14c [ 82.046576][ T5128] el0_svc+0x78/0x1e0 [ 82.047150][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 82.047964][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 82.048820][ T5128] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.050467][ T5128] CPU: 0 PID: 5128 Comm: syz.0.44 Not tainted syzkaller #0 [ 82.051525][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.052963][ T5128] Call trace: [ 82.053458][ T5128] dump_backtrace+0x0/0x43c [ 82.054091][ T5128] show_stack+0x2c/0x3c [ 82.054691][ T5128] __dump_stack+0x30/0x40 [ 82.055318][ T5128] dump_stack_lvl+0xf8/0x160 [ 82.055970][ T5128] dump_stack+0x1c/0x5c [ 82.056591][ T5128] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.057364][ T5128] dccp_xmit_packet+0x298/0x448 [ 82.058050][ T5128] dccp_write_xmit+0x118/0x1d0 [ 82.058775][ T5128] dccp_sendmsg+0x538/0x8a8 [ 82.059438][ T5128] inet_sendmsg+0x154/0x284 [ 82.060118][ T5128] __sys_sendto+0x2e8/0x3d8 [ 82.060781][ T5128] __arm64_sys_sendto+0xd8/0xf8 [ 82.061468][ T5128] invoke_syscall+0x98/0x2b8 [ 82.062157][ T5128] el0_svc_common+0x138/0x258 [ 82.062864][ T5128] do_el0_svc+0x58/0x14c [ 82.063466][ T5128] el0_svc+0x78/0x1e0 [ 82.063995][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 82.064697][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 82.076342][ T5130] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.083724][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.085480][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.086516][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.087959][ T5130] Call trace: [ 82.088431][ T5130] dump_backtrace+0x0/0x43c [ 82.089095][ T5130] show_stack+0x2c/0x3c [ 82.089684][ T5130] __dump_stack+0x30/0x40 [ 82.090349][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.091051][ T5130] dump_stack+0x1c/0x5c [ 82.091677][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.092507][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.093214][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.093921][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.094599][ T5130] inet_sendmsg+0x154/0x284 [ 82.095280][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.095985][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.096664][ T5130] invoke_syscall+0x98/0x2b8 [ 82.097300][ T5130] el0_svc_common+0x138/0x258 [ 82.097967][ T5130] do_el0_svc+0x58/0x14c [ 82.098569][ T5130] el0_svc+0x78/0x1e0 [ 82.099116][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.099797][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.100642][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.102169][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.103145][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.104543][ T5130] Call trace: [ 82.105051][ T5130] dump_backtrace+0x0/0x43c [ 82.105684][ T5130] show_stack+0x2c/0x3c [ 82.106365][ T5130] __dump_stack+0x30/0x40 [ 82.107053][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.107734][ T5130] dump_stack+0x1c/0x5c [ 82.108360][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.109246][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.110011][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.110801][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.111512][ T5130] inet_sendmsg+0x154/0x284 [ 82.112202][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.112894][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.113671][ T5130] invoke_syscall+0x98/0x2b8 [ 82.114361][ T5130] el0_svc_common+0x138/0x258 [ 82.115067][ T5130] do_el0_svc+0x58/0x14c [ 82.115718][ T5130] el0_svc+0x78/0x1e0 [ 82.116361][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.117085][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.118401][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.120106][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.121204][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.122682][ T5130] Call trace: [ 82.123165][ T5130] dump_backtrace+0x0/0x43c [ 82.123837][ T5130] show_stack+0x2c/0x3c [ 82.124435][ T5130] __dump_stack+0x30/0x40 [ 82.125088][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.125767][ T5130] dump_stack+0x1c/0x5c [ 82.126420][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.127238][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.127928][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.128679][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.129334][ T5130] inet_sendmsg+0x154/0x284 [ 82.129998][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.130628][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.131375][ T5130] invoke_syscall+0x98/0x2b8 [ 82.131993][ T5130] el0_svc_common+0x138/0x258 [ 82.132703][ T5130] do_el0_svc+0x58/0x14c [ 82.133312][ T5130] el0_svc+0x78/0x1e0 [ 82.133879][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.134588][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.135442][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.137132][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.138247][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.139780][ T5130] Call trace: [ 82.140272][ T5130] dump_backtrace+0x0/0x43c [ 82.140882][ T5130] show_stack+0x2c/0x3c [ 82.141469][ T5130] __dump_stack+0x30/0x40 [ 82.142048][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.142711][ T5130] dump_stack+0x1c/0x5c [ 82.143276][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.144070][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.144777][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.145450][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.146103][ T5130] inet_sendmsg+0x154/0x284 [ 82.146772][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.147429][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.148111][ T5130] invoke_syscall+0x98/0x2b8 [ 82.148758][ T5130] el0_svc_common+0x138/0x258 [ 82.149420][ T5130] do_el0_svc+0x58/0x14c [ 82.149996][ T5130] el0_svc+0x78/0x1e0 [ 82.150580][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.151300][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.152142][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.153578][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.154533][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.155783][ T5130] Call trace: [ 82.156266][ T5130] dump_backtrace+0x0/0x43c [ 82.156887][ T5130] show_stack+0x2c/0x3c [ 82.157511][ T5130] __dump_stack+0x30/0x40 [ 82.158103][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.158791][ T5130] dump_stack+0x1c/0x5c [ 82.159385][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.160175][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.160833][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.161562][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.162243][ T5130] inet_sendmsg+0x154/0x284 [ 82.162904][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.163545][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.164220][ T5130] invoke_syscall+0x98/0x2b8 [ 82.164895][ T5130] el0_svc_common+0x138/0x258 [ 82.165612][ T5130] do_el0_svc+0x58/0x14c [ 82.166228][ T5130] el0_svc+0x78/0x1e0 [ 82.166865][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.167595][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.168450][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.170049][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.171103][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.172515][ T5130] Call trace: [ 82.172987][ T5130] dump_backtrace+0x0/0x43c [ 82.173647][ T5130] show_stack+0x2c/0x3c [ 82.174239][ T5130] __dump_stack+0x30/0x40 [ 82.174871][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.175572][ T5130] dump_stack+0x1c/0x5c [ 82.176162][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.176963][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.177656][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.178324][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.179000][ T5130] inet_sendmsg+0x154/0x284 [ 82.179634][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.180306][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.180996][ T5130] invoke_syscall+0x98/0x2b8 [ 82.181641][ T5130] el0_svc_common+0x138/0x258 [ 82.182405][ T5130] do_el0_svc+0x58/0x14c [ 82.183047][ T5130] el0_svc+0x78/0x1e0 [ 82.183593][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.184329][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.185184][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.186732][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.187736][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.189118][ T5130] Call trace: [ 82.189534][ T5130] dump_backtrace+0x0/0x43c [ 82.190184][ T5130] show_stack+0x2c/0x3c [ 82.190780][ T5130] __dump_stack+0x30/0x40 [ 82.191416][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.192101][ T5130] dump_stack+0x1c/0x5c [ 82.192671][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.193438][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.194105][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.194780][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.195414][ T5130] inet_sendmsg+0x154/0x284 [ 82.196048][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.196694][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.197442][ T5130] invoke_syscall+0x98/0x2b8 [ 82.198122][ T5130] el0_svc_common+0x138/0x258 [ 82.198812][ T5130] do_el0_svc+0x58/0x14c [ 82.199383][ T5130] el0_svc+0x78/0x1e0 [ 82.199954][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.200682][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.201524][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.203135][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.204092][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.205511][ T5130] Call trace: [ 82.206006][ T5130] dump_backtrace+0x0/0x43c [ 82.206630][ T5130] show_stack+0x2c/0x3c [ 82.207278][ T5130] __dump_stack+0x30/0x40 [ 82.207913][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.208548][ T5130] dump_stack+0x1c/0x5c [ 82.209138][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.209939][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.210619][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.211318][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.211953][ T5130] inet_sendmsg+0x154/0x284 [ 82.212601][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.213232][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.213927][ T5130] invoke_syscall+0x98/0x2b8 [ 82.214635][ T5130] el0_svc_common+0x138/0x258 [ 82.215302][ T5130] do_el0_svc+0x58/0x14c [ 82.215921][ T5130] el0_svc+0x78/0x1e0 [ 82.216500][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.217284][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.218066][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.219497][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.220423][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.221898][ T5130] Call trace: [ 82.222322][ T5130] dump_backtrace+0x0/0x43c [ 82.222959][ T5130] show_stack+0x2c/0x3c [ 82.223533][ T5130] __dump_stack+0x30/0x40 [ 82.224138][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.224774][ T5130] dump_stack+0x1c/0x5c [ 82.225350][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.226147][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.226807][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.227423][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.228012][ T5130] inet_sendmsg+0x154/0x284 [ 82.228598][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.229176][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.229883][ T5130] invoke_syscall+0x98/0x2b8 [ 82.230593][ T5130] el0_svc_common+0x138/0x258 [ 82.231282][ T5130] do_el0_svc+0x58/0x14c [ 82.231889][ T5130] el0_svc+0x78/0x1e0 [ 82.232466][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.233249][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.234082][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.235787][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.236809][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.238244][ T5130] Call trace: [ 82.238700][ T5130] dump_backtrace+0x0/0x43c [ 82.239379][ T5130] show_stack+0x2c/0x3c [ 82.239967][ T5130] __dump_stack+0x30/0x40 [ 82.240535][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.241264][ T5130] dump_stack+0x1c/0x5c [ 82.241884][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.242631][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.243380][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.244111][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.244753][ T5130] inet_sendmsg+0x154/0x284 [ 82.245376][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.246083][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.246806][ T5130] invoke_syscall+0x98/0x2b8 [ 82.247507][ T5130] el0_svc_common+0x138/0x258 [ 82.248180][ T5130] do_el0_svc+0x58/0x14c [ 82.248791][ T5130] el0_svc+0x78/0x1e0 [ 82.249404][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.250145][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.250952][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.252603][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.253684][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.255146][ T5130] Call trace: [ 82.255602][ T5130] dump_backtrace+0x0/0x43c [ 82.256248][ T5130] show_stack+0x2c/0x3c [ 82.256869][ T5130] __dump_stack+0x30/0x40 [ 82.257450][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.258090][ T5130] dump_stack+0x1c/0x5c [ 82.258696][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.259501][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.260177][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.260893][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.261504][ T5130] inet_sendmsg+0x154/0x284 [ 82.262165][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.262818][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.263470][ T5130] invoke_syscall+0x98/0x2b8 [ 82.264120][ T5130] el0_svc_common+0x138/0x258 [ 82.264776][ T5130] do_el0_svc+0x58/0x14c [ 82.265408][ T5130] el0_svc+0x78/0x1e0 [ 82.265987][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.266721][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.267514][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.268989][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.269960][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.271392][ T5130] Call trace: [ 82.271842][ T5130] dump_backtrace+0x0/0x43c [ 82.272515][ T5130] show_stack+0x2c/0x3c [ 82.273095][ T5130] __dump_stack+0x30/0x40 [ 82.273772][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.274429][ T5130] dump_stack+0x1c/0x5c [ 82.275013][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.275835][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.276523][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.277244][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.277905][ T5130] inet_sendmsg+0x154/0x284 [ 82.278509][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.279138][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.279780][ T5130] invoke_syscall+0x98/0x2b8 [ 82.280415][ T5130] el0_svc_common+0x138/0x258 [ 82.281055][ T5130] do_el0_svc+0x58/0x14c [ 82.281736][ T5130] el0_svc+0x78/0x1e0 [ 82.282311][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.283013][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.283976][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.285605][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.286595][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.287990][ T5130] Call trace: [ 82.288458][ T5130] dump_backtrace+0x0/0x43c [ 82.289097][ T5130] show_stack+0x2c/0x3c [ 82.289643][ T5130] __dump_stack+0x30/0x40 [ 82.290182][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.290859][ T5130] dump_stack+0x1c/0x5c [ 82.291409][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.292136][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.292798][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.293446][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.294099][ T5130] inet_sendmsg+0x154/0x284 [ 82.294773][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.295389][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.296056][ T5130] invoke_syscall+0x98/0x2b8 [ 82.296748][ T5130] el0_svc_common+0x138/0x258 [ 82.297431][ T5130] do_el0_svc+0x58/0x14c [ 82.298050][ T5130] el0_svc+0x78/0x1e0 [ 82.298670][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.299344][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.300184][ T5130] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.301730][ T5130] CPU: 0 PID: 5130 Comm: syz.0.45 Not tainted syzkaller #0 [ 82.302733][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.304082][ T5130] Call trace: [ 82.304537][ T5130] dump_backtrace+0x0/0x43c [ 82.305184][ T5130] show_stack+0x2c/0x3c [ 82.305792][ T5130] __dump_stack+0x30/0x40 [ 82.306451][ T5130] dump_stack_lvl+0xf8/0x160 [ 82.307079][ T5130] dump_stack+0x1c/0x5c [ 82.307689][ T5130] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.308479][ T5130] dccp_xmit_packet+0x298/0x448 [ 82.309217][ T5130] dccp_write_xmit+0x118/0x1d0 [ 82.309923][ T5130] dccp_sendmsg+0x538/0x8a8 [ 82.310597][ T5130] inet_sendmsg+0x154/0x284 [ 82.311259][ T5130] __sys_sendto+0x2e8/0x3d8 [ 82.311913][ T5130] __arm64_sys_sendto+0xd8/0xf8 [ 82.312602][ T5130] invoke_syscall+0x98/0x2b8 [ 82.313232][ T5130] el0_svc_common+0x138/0x258 [ 82.313873][ T5130] do_el0_svc+0x58/0x14c [ 82.314469][ T5130] el0_svc+0x78/0x1e0 [ 82.315080][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 82.315803][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 82.328180][ T5132] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.335486][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.337072][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.338170][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.339624][ T5132] Call trace: [ 82.340107][ T5132] dump_backtrace+0x0/0x43c [ 82.340758][ T5132] show_stack+0x2c/0x3c [ 82.341373][ T5132] __dump_stack+0x30/0x40 [ 82.342008][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.342689][ T5132] dump_stack+0x1c/0x5c [ 82.343295][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.344002][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.344684][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.345403][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.346068][ T5132] inet_sendmsg+0x154/0x284 [ 82.346772][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.347415][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.348078][ T5132] invoke_syscall+0x98/0x2b8 [ 82.348743][ T5132] el0_svc_common+0x138/0x258 [ 82.349475][ T5132] do_el0_svc+0x58/0x14c [ 82.350062][ T5132] el0_svc+0x78/0x1e0 [ 82.350631][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.351392][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.352223][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.353827][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.354840][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.356282][ T5132] Call trace: [ 82.356744][ T5132] dump_backtrace+0x0/0x43c [ 82.357362][ T5132] show_stack+0x2c/0x3c [ 82.358000][ T5132] __dump_stack+0x30/0x40 [ 82.358587][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.359221][ T5132] dump_stack+0x1c/0x5c [ 82.359872][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.360666][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.361414][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.362117][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.362821][ T5132] inet_sendmsg+0x154/0x284 [ 82.363506][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.364211][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.365010][ T5132] invoke_syscall+0x98/0x2b8 [ 82.365662][ T5132] el0_svc_common+0x138/0x258 [ 82.366359][ T5132] do_el0_svc+0x58/0x14c [ 82.366989][ T5132] el0_svc+0x78/0x1e0 [ 82.367580][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.368361][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.369614][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.371191][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.372252][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.373649][ T5132] Call trace: [ 82.374093][ T5132] dump_backtrace+0x0/0x43c [ 82.374747][ T5132] show_stack+0x2c/0x3c [ 82.375318][ T5132] __dump_stack+0x30/0x40 [ 82.375912][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.376554][ T5132] dump_stack+0x1c/0x5c [ 82.377138][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.377875][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.378550][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.379254][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.379856][ T5132] inet_sendmsg+0x154/0x284 [ 82.380563][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.381206][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.381882][ T5132] invoke_syscall+0x98/0x2b8 [ 82.382518][ T5132] el0_svc_common+0x138/0x258 [ 82.383209][ T5132] do_el0_svc+0x58/0x14c [ 82.383798][ T5132] el0_svc+0x78/0x1e0 [ 82.384367][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.385088][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.385933][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.387620][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.388613][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.389977][ T5132] Call trace: [ 82.390420][ T5132] dump_backtrace+0x0/0x43c [ 82.391061][ T5132] show_stack+0x2c/0x3c [ 82.391699][ T5132] __dump_stack+0x30/0x40 [ 82.392327][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.393019][ T5132] dump_stack+0x1c/0x5c [ 82.393568][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.394376][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.395071][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.395743][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.396346][ T5132] inet_sendmsg+0x154/0x284 [ 82.396970][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.397581][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.398286][ T5132] invoke_syscall+0x98/0x2b8 [ 82.399055][ T5132] el0_svc_common+0x138/0x258 [ 82.399702][ T5132] do_el0_svc+0x58/0x14c [ 82.400292][ T5132] el0_svc+0x78/0x1e0 [ 82.400875][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.401549][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.402319][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.403770][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.404804][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.406178][ T5132] Call trace: [ 82.406699][ T5132] dump_backtrace+0x0/0x43c [ 82.407392][ T5132] show_stack+0x2c/0x3c [ 82.408005][ T5132] __dump_stack+0x30/0x40 [ 82.408656][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.409330][ T5132] dump_stack+0x1c/0x5c [ 82.409949][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.410747][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.411454][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.412251][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.413011][ T5132] inet_sendmsg+0x154/0x284 [ 82.413756][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.414487][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.415223][ T5132] invoke_syscall+0x98/0x2b8 [ 82.415889][ T5132] el0_svc_common+0x138/0x258 [ 82.416612][ T5132] do_el0_svc+0x58/0x14c [ 82.417255][ T5132] el0_svc+0x78/0x1e0 [ 82.417844][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.418581][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.419372][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.420985][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.421993][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.423428][ T5132] Call trace: [ 82.423908][ T5132] dump_backtrace+0x0/0x43c [ 82.424559][ T5132] show_stack+0x2c/0x3c [ 82.425207][ T5132] __dump_stack+0x30/0x40 [ 82.425841][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.426526][ T5132] dump_stack+0x1c/0x5c [ 82.427193][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.428008][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.428682][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.429415][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.430048][ T5132] inet_sendmsg+0x154/0x284 [ 82.430663][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.431291][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.431969][ T5132] invoke_syscall+0x98/0x2b8 [ 82.432572][ T5132] el0_svc_common+0x138/0x258 [ 82.433237][ T5132] do_el0_svc+0x58/0x14c [ 82.433803][ T5132] el0_svc+0x78/0x1e0 [ 82.434388][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.435077][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.436435][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.437944][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.438959][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.440319][ T5132] Call trace: [ 82.440784][ T5132] dump_backtrace+0x0/0x43c [ 82.441407][ T5132] show_stack+0x2c/0x3c [ 82.442002][ T5132] __dump_stack+0x30/0x40 [ 82.442627][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.443344][ T5132] dump_stack+0x1c/0x5c [ 82.443972][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.444748][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.445506][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.446180][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.446818][ T5132] inet_sendmsg+0x154/0x284 [ 82.447527][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.448146][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.448855][ T5132] invoke_syscall+0x98/0x2b8 [ 82.449556][ T5132] el0_svc_common+0x138/0x258 [ 82.450185][ T5132] do_el0_svc+0x58/0x14c [ 82.450774][ T5132] el0_svc+0x78/0x1e0 [ 82.451363][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.452080][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.452884][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.454477][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.455474][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.456811][ T5132] Call trace: [ 82.457203][ T5132] dump_backtrace+0x0/0x43c [ 82.457795][ T5132] show_stack+0x2c/0x3c [ 82.458338][ T5132] __dump_stack+0x30/0x40 [ 82.458956][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.459603][ T5132] dump_stack+0x1c/0x5c [ 82.460157][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.460905][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.461595][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.462265][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.462927][ T5132] inet_sendmsg+0x154/0x284 [ 82.463590][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.464277][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.464999][ T5132] invoke_syscall+0x98/0x2b8 [ 82.465667][ T5132] el0_svc_common+0x138/0x258 [ 82.466303][ T5132] do_el0_svc+0x58/0x14c [ 82.466877][ T5132] el0_svc+0x78/0x1e0 [ 82.467385][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.468069][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.468847][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.470325][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.471415][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.472880][ T5132] Call trace: [ 82.473370][ T5132] dump_backtrace+0x0/0x43c [ 82.473956][ T5132] show_stack+0x2c/0x3c [ 82.474544][ T5132] __dump_stack+0x30/0x40 [ 82.475252][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.475947][ T5132] dump_stack+0x1c/0x5c [ 82.476577][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.477408][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.478118][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.478791][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.479425][ T5132] inet_sendmsg+0x154/0x284 [ 82.480027][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.480598][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.481226][ T5132] invoke_syscall+0x98/0x2b8 [ 82.481830][ T5132] el0_svc_common+0x138/0x258 [ 82.482502][ T5132] do_el0_svc+0x58/0x14c [ 82.483117][ T5132] el0_svc+0x78/0x1e0 [ 82.483668][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.484352][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.485109][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.486746][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.487748][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.489117][ T5132] Call trace: [ 82.489599][ T5132] dump_backtrace+0x0/0x43c [ 82.490244][ T5132] show_stack+0x2c/0x3c [ 82.490813][ T5132] __dump_stack+0x30/0x40 [ 82.491421][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.492017][ T5132] dump_stack+0x1c/0x5c [ 82.492611][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.493344][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.493998][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.494647][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.495314][ T5132] inet_sendmsg+0x154/0x284 [ 82.495926][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.496580][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.497247][ T5132] invoke_syscall+0x98/0x2b8 [ 82.497926][ T5132] el0_svc_common+0x138/0x258 [ 82.498575][ T5132] do_el0_svc+0x58/0x14c [ 82.499154][ T5132] el0_svc+0x78/0x1e0 [ 82.499687][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.500440][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.501223][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.502738][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.503758][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.505124][ T5132] Call trace: [ 82.505586][ T5132] dump_backtrace+0x0/0x43c [ 82.506253][ T5132] show_stack+0x2c/0x3c [ 82.506848][ T5132] __dump_stack+0x30/0x40 [ 82.507460][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.508213][ T5132] dump_stack+0x1c/0x5c [ 82.508827][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.509563][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.510285][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.510938][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.511564][ T5132] inet_sendmsg+0x154/0x284 [ 82.512168][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.512793][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.513448][ T5132] invoke_syscall+0x98/0x2b8 [ 82.514108][ T5132] el0_svc_common+0x138/0x258 [ 82.514804][ T5132] do_el0_svc+0x58/0x14c [ 82.515402][ T5132] el0_svc+0x78/0x1e0 [ 82.515945][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.516693][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.517505][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.518975][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.520007][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.521396][ T5132] Call trace: [ 82.521828][ T5132] dump_backtrace+0x0/0x43c [ 82.522505][ T5132] show_stack+0x2c/0x3c [ 82.523119][ T5132] __dump_stack+0x30/0x40 [ 82.523706][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.524362][ T5132] dump_stack+0x1c/0x5c [ 82.524966][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.525828][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.526485][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.527151][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.527780][ T5132] inet_sendmsg+0x154/0x284 [ 82.528421][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.529077][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.529813][ T5132] invoke_syscall+0x98/0x2b8 [ 82.530493][ T5132] el0_svc_common+0x138/0x258 [ 82.531174][ T5132] do_el0_svc+0x58/0x14c [ 82.531787][ T5132] el0_svc+0x78/0x1e0 [ 82.532311][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.532998][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.533981][ T5132] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.535630][ T5132] CPU: 0 PID: 5132 Comm: syz.0.46 Not tainted syzkaller #0 [ 82.536683][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.538105][ T5132] Call trace: [ 82.538550][ T5132] dump_backtrace+0x0/0x43c [ 82.539196][ T5132] show_stack+0x2c/0x3c [ 82.539768][ T5132] __dump_stack+0x30/0x40 [ 82.540346][ T5132] dump_stack_lvl+0xf8/0x160 [ 82.541013][ T5132] dump_stack+0x1c/0x5c [ 82.541611][ T5132] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.542336][ T5132] dccp_xmit_packet+0x298/0x448 [ 82.543099][ T5132] dccp_write_xmit+0x118/0x1d0 [ 82.543810][ T5132] dccp_sendmsg+0x538/0x8a8 [ 82.544392][ T5132] inet_sendmsg+0x154/0x284 [ 82.545069][ T5132] __sys_sendto+0x2e8/0x3d8 [ 82.545831][ T5132] __arm64_sys_sendto+0xd8/0xf8 [ 82.546667][ T5132] invoke_syscall+0x98/0x2b8 [ 82.547416][ T5132] el0_svc_common+0x138/0x258 [ 82.548104][ T5132] do_el0_svc+0x58/0x14c [ 82.548853][ T5132] el0_svc+0x78/0x1e0 [ 82.549482][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 82.550241][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 82.561538][ T5134] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.569563][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.571112][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.572210][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.573702][ T5134] Call trace: [ 82.574179][ T5134] dump_backtrace+0x0/0x43c [ 82.574827][ T5134] show_stack+0x2c/0x3c [ 82.575504][ T5134] __dump_stack+0x30/0x40 [ 82.576221][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.576930][ T5134] dump_stack+0x1c/0x5c [ 82.577544][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.578400][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.579141][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.579812][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.580473][ T5134] inet_sendmsg+0x154/0x284 [ 82.581138][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.581814][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.582552][ T5134] invoke_syscall+0x98/0x2b8 [ 82.583177][ T5134] el0_svc_common+0x138/0x258 [ 82.583858][ T5134] do_el0_svc+0x58/0x14c [ 82.584464][ T5134] el0_svc+0x78/0x1e0 [ 82.585020][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.585765][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.586641][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.588195][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.589151][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.590521][ T5134] Call trace: [ 82.590994][ T5134] dump_backtrace+0x0/0x43c [ 82.591614][ T5134] show_stack+0x2c/0x3c [ 82.592202][ T5134] __dump_stack+0x30/0x40 [ 82.592840][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.593475][ T5134] dump_stack+0x1c/0x5c [ 82.594016][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.594812][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.595528][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.596172][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.596807][ T5134] inet_sendmsg+0x154/0x284 [ 82.597439][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.598084][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.598830][ T5134] invoke_syscall+0x98/0x2b8 [ 82.599471][ T5134] el0_svc_common+0x138/0x258 [ 82.600110][ T5134] do_el0_svc+0x58/0x14c [ 82.600753][ T5134] el0_svc+0x78/0x1e0 [ 82.601321][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.602041][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.603028][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.604630][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.605617][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.607086][ T5134] Call trace: [ 82.607585][ T5134] dump_backtrace+0x0/0x43c [ 82.608275][ T5134] show_stack+0x2c/0x3c [ 82.608891][ T5134] __dump_stack+0x30/0x40 [ 82.609495][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.610150][ T5134] dump_stack+0x1c/0x5c [ 82.610747][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.611555][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.612245][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.612965][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.613663][ T5134] inet_sendmsg+0x154/0x284 [ 82.614369][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.615042][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.615732][ T5134] invoke_syscall+0x98/0x2b8 [ 82.616395][ T5134] el0_svc_common+0x138/0x258 [ 82.617041][ T5134] do_el0_svc+0x58/0x14c [ 82.617721][ T5134] el0_svc+0x78/0x1e0 [ 82.618277][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.618938][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.619772][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.621274][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.622260][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.623675][ T5134] Call trace: [ 82.624107][ T5134] dump_backtrace+0x0/0x43c [ 82.624769][ T5134] show_stack+0x2c/0x3c [ 82.625328][ T5134] __dump_stack+0x30/0x40 [ 82.625960][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.626655][ T5134] dump_stack+0x1c/0x5c [ 82.627245][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.628023][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.628680][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.629390][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.630046][ T5134] inet_sendmsg+0x154/0x284 [ 82.630732][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.631346][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.632110][ T5134] invoke_syscall+0x98/0x2b8 [ 82.632786][ T5134] el0_svc_common+0x138/0x258 [ 82.633449][ T5134] do_el0_svc+0x58/0x14c [ 82.634149][ T5134] el0_svc+0x78/0x1e0 [ 82.634715][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.635419][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.636514][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.638063][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.638998][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.640347][ T5134] Call trace: [ 82.640811][ T5134] dump_backtrace+0x0/0x43c [ 82.641468][ T5134] show_stack+0x2c/0x3c [ 82.642039][ T5134] __dump_stack+0x30/0x40 [ 82.642597][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.643230][ T5134] dump_stack+0x1c/0x5c [ 82.643815][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.644667][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.645375][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.646035][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.646646][ T5134] inet_sendmsg+0x154/0x284 [ 82.647321][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.648040][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.648777][ T5134] invoke_syscall+0x98/0x2b8 [ 82.649441][ T5134] el0_svc_common+0x138/0x258 [ 82.650154][ T5134] do_el0_svc+0x58/0x14c [ 82.650764][ T5134] el0_svc+0x78/0x1e0 [ 82.651341][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.652055][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.652849][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.654509][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.655569][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.657011][ T5134] Call trace: [ 82.657463][ T5134] dump_backtrace+0x0/0x43c [ 82.658052][ T5134] show_stack+0x2c/0x3c [ 82.658609][ T5134] __dump_stack+0x30/0x40 [ 82.659221][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.659873][ T5134] dump_stack+0x1c/0x5c [ 82.660477][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.661262][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.661975][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.662637][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.663303][ T5134] inet_sendmsg+0x154/0x284 [ 82.663949][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.664594][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.665289][ T5134] invoke_syscall+0x98/0x2b8 [ 82.665901][ T5134] el0_svc_common+0x138/0x258 [ 82.666528][ T5134] do_el0_svc+0x58/0x14c [ 82.667089][ T5134] el0_svc+0x78/0x1e0 [ 82.667638][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.668323][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.669170][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.670702][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.671725][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.673128][ T5134] Call trace: [ 82.673609][ T5134] dump_backtrace+0x0/0x43c [ 82.674254][ T5134] show_stack+0x2c/0x3c [ 82.674851][ T5134] __dump_stack+0x30/0x40 [ 82.675520][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.676190][ T5134] dump_stack+0x1c/0x5c [ 82.676799][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.677598][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.678318][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.678988][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.679696][ T5134] inet_sendmsg+0x154/0x284 [ 82.680325][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.680970][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.681635][ T5134] invoke_syscall+0x98/0x2b8 [ 82.682341][ T5134] el0_svc_common+0x138/0x258 [ 82.682976][ T5134] do_el0_svc+0x58/0x14c [ 82.683552][ T5134] el0_svc+0x78/0x1e0 [ 82.684077][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.684807][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.685647][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.687124][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.688125][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.689519][ T5134] Call trace: [ 82.689947][ T5134] dump_backtrace+0x0/0x43c [ 82.690553][ T5134] show_stack+0x2c/0x3c [ 82.691164][ T5134] __dump_stack+0x30/0x40 [ 82.691712][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.692343][ T5134] dump_stack+0x1c/0x5c [ 82.692930][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.693770][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.694456][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.695081][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.695733][ T5134] inet_sendmsg+0x154/0x284 [ 82.696369][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.697041][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.697719][ T5134] invoke_syscall+0x98/0x2b8 [ 82.698404][ T5134] el0_svc_common+0x138/0x258 [ 82.699044][ T5134] do_el0_svc+0x58/0x14c [ 82.699666][ T5134] el0_svc+0x78/0x1e0 [ 82.700259][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.700976][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.701810][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.703322][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.704363][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.705726][ T5134] Call trace: [ 82.706189][ T5134] dump_backtrace+0x0/0x43c [ 82.706776][ T5134] show_stack+0x2c/0x3c [ 82.707340][ T5134] __dump_stack+0x30/0x40 [ 82.708079][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.708710][ T5134] dump_stack+0x1c/0x5c [ 82.709350][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.710072][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.710777][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.711425][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.711994][ T5134] inet_sendmsg+0x154/0x284 [ 82.712609][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.713289][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.714031][ T5134] invoke_syscall+0x98/0x2b8 [ 82.714695][ T5134] el0_svc_common+0x138/0x258 [ 82.715347][ T5134] do_el0_svc+0x58/0x14c [ 82.715960][ T5134] el0_svc+0x78/0x1e0 [ 82.716525][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.717196][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.718006][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.719540][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.720508][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.721961][ T5134] Call trace: [ 82.722395][ T5134] dump_backtrace+0x0/0x43c [ 82.723016][ T5134] show_stack+0x2c/0x3c [ 82.723594][ T5134] __dump_stack+0x30/0x40 [ 82.724203][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.724856][ T5134] dump_stack+0x1c/0x5c [ 82.725471][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.726195][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.726930][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.727612][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.728253][ T5134] inet_sendmsg+0x154/0x284 [ 82.728905][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.729556][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.730238][ T5134] invoke_syscall+0x98/0x2b8 [ 82.730903][ T5134] el0_svc_common+0x138/0x258 [ 82.731565][ T5134] do_el0_svc+0x58/0x14c [ 82.732177][ T5134] el0_svc+0x78/0x1e0 [ 82.732740][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.733428][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.734273][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.735741][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.736795][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.738175][ T5134] Call trace: [ 82.738647][ T5134] dump_backtrace+0x0/0x43c [ 82.739294][ T5134] show_stack+0x2c/0x3c [ 82.739936][ T5134] __dump_stack+0x30/0x40 [ 82.740556][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.741297][ T5134] dump_stack+0x1c/0x5c [ 82.741928][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.742688][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.743424][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.744083][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.744765][ T5134] inet_sendmsg+0x154/0x284 [ 82.745409][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.746106][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.746818][ T5134] invoke_syscall+0x98/0x2b8 [ 82.747501][ T5134] el0_svc_common+0x138/0x258 [ 82.748196][ T5134] do_el0_svc+0x58/0x14c [ 82.748797][ T5134] el0_svc+0x78/0x1e0 [ 82.749371][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.750095][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.751222][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.752884][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.753937][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.755338][ T5134] Call trace: [ 82.755787][ T5134] dump_backtrace+0x0/0x43c [ 82.756429][ T5134] show_stack+0x2c/0x3c [ 82.757022][ T5134] __dump_stack+0x30/0x40 [ 82.757689][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.758345][ T5134] dump_stack+0x1c/0x5c [ 82.758932][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.759722][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.760458][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.761119][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.761810][ T5134] inet_sendmsg+0x154/0x284 [ 82.762444][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.763065][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.763757][ T5134] invoke_syscall+0x98/0x2b8 [ 82.764418][ T5134] el0_svc_common+0x138/0x258 [ 82.765049][ T5134] do_el0_svc+0x58/0x14c [ 82.765647][ T5134] el0_svc+0x78/0x1e0 [ 82.766201][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.766909][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.767737][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.769263][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.770233][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.771502][ T5134] Call trace: [ 82.771947][ T5134] dump_backtrace+0x0/0x43c [ 82.772540][ T5134] show_stack+0x2c/0x3c [ 82.773093][ T5134] __dump_stack+0x30/0x40 [ 82.773647][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.774315][ T5134] dump_stack+0x1c/0x5c [ 82.774970][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.775743][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.776449][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.777091][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.777716][ T5134] inet_sendmsg+0x154/0x284 [ 82.778344][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.778949][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.779711][ T5134] invoke_syscall+0x98/0x2b8 [ 82.780349][ T5134] el0_svc_common+0x138/0x258 [ 82.780999][ T5134] do_el0_svc+0x58/0x14c [ 82.781555][ T5134] el0_svc+0x78/0x1e0 [ 82.782118][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.782816][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.783601][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.785338][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.786394][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.787817][ T5134] Call trace: [ 82.788226][ T5134] dump_backtrace+0x0/0x43c [ 82.788858][ T5134] show_stack+0x2c/0x3c [ 82.789425][ T5134] __dump_stack+0x30/0x40 [ 82.789998][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.790635][ T5134] dump_stack+0x1c/0x5c [ 82.791151][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.791912][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.792539][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.793220][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.793856][ T5134] inet_sendmsg+0x154/0x284 [ 82.794531][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.795197][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.795917][ T5134] invoke_syscall+0x98/0x2b8 [ 82.796588][ T5134] el0_svc_common+0x138/0x258 [ 82.797302][ T5134] do_el0_svc+0x58/0x14c [ 82.797888][ T5134] el0_svc+0x78/0x1e0 [ 82.798409][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.799147][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.800066][ T5134] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.801596][ T5134] CPU: 0 PID: 5134 Comm: syz.0.47 Not tainted syzkaller #0 [ 82.802699][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.804061][ T5134] Call trace: [ 82.804560][ T5134] dump_backtrace+0x0/0x43c [ 82.805242][ T5134] show_stack+0x2c/0x3c [ 82.805859][ T5134] __dump_stack+0x30/0x40 [ 82.806450][ T5134] dump_stack_lvl+0xf8/0x160 [ 82.807065][ T5134] dump_stack+0x1c/0x5c [ 82.807650][ T5134] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.808444][ T5134] dccp_xmit_packet+0x298/0x448 [ 82.809154][ T5134] dccp_write_xmit+0x118/0x1d0 [ 82.809875][ T5134] dccp_sendmsg+0x538/0x8a8 [ 82.810562][ T5134] inet_sendmsg+0x154/0x284 [ 82.811262][ T5134] __sys_sendto+0x2e8/0x3d8 [ 82.811930][ T5134] __arm64_sys_sendto+0xd8/0xf8 [ 82.812635][ T5134] invoke_syscall+0x98/0x2b8 [ 82.813333][ T5134] el0_svc_common+0x138/0x258 [ 82.814024][ T5134] do_el0_svc+0x58/0x14c [ 82.814769][ T5134] el0_svc+0x78/0x1e0 [ 82.815330][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 82.816002][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 82.827448][ T5136] dccp_xmit_packet: Payload too large (65475) for featneg. [ 82.835036][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.836703][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.837881][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.839497][ T5136] Call trace: [ 82.840011][ T5136] dump_backtrace+0x0/0x43c [ 82.840701][ T5136] show_stack+0x2c/0x3c [ 82.841334][ T5136] __dump_stack+0x30/0x40 [ 82.841990][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.842676][ T5136] dump_stack+0x1c/0x5c [ 82.843279][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.844074][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.844847][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.845541][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.846196][ T5136] inet_sendmsg+0x154/0x284 [ 82.846860][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.847486][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.848194][ T5136] invoke_syscall+0x98/0x2b8 [ 82.848827][ T5136] el0_svc_common+0x138/0x258 [ 82.849496][ T5136] do_el0_svc+0x58/0x14c [ 82.850116][ T5136] el0_svc+0x78/0x1e0 [ 82.850692][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.851389][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.852760][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.854356][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.855302][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.856631][ T5136] Call trace: [ 82.857081][ T5136] dump_backtrace+0x0/0x43c [ 82.857820][ T5136] show_stack+0x2c/0x3c [ 82.858510][ T5136] __dump_stack+0x30/0x40 [ 82.859225][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.859943][ T5136] dump_stack+0x1c/0x5c [ 82.860642][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.861479][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.862184][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.862850][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.863564][ T5136] inet_sendmsg+0x154/0x284 [ 82.864235][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.864923][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.865674][ T5136] invoke_syscall+0x98/0x2b8 [ 82.866380][ T5136] el0_svc_common+0x138/0x258 [ 82.867075][ T5136] do_el0_svc+0x58/0x14c [ 82.867754][ T5136] el0_svc+0x78/0x1e0 [ 82.868383][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.869081][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.869944][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.871546][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.872543][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.874048][ T5136] Call trace: [ 82.874584][ T5136] dump_backtrace+0x0/0x43c [ 82.875253][ T5136] show_stack+0x2c/0x3c [ 82.875896][ T5136] __dump_stack+0x30/0x40 [ 82.876533][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.877232][ T5136] dump_stack+0x1c/0x5c [ 82.877855][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.878696][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.879406][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.880174][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.880855][ T5136] inet_sendmsg+0x154/0x284 [ 82.881535][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.882173][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.882854][ T5136] invoke_syscall+0x98/0x2b8 [ 82.883510][ T5136] el0_svc_common+0x138/0x258 [ 82.884137][ T5136] do_el0_svc+0x58/0x14c [ 82.884683][ T5136] el0_svc+0x78/0x1e0 [ 82.885243][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.885968][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.886853][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.888462][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.889438][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.890781][ T5136] Call trace: [ 82.891313][ T5136] dump_backtrace+0x0/0x43c [ 82.891950][ T5136] show_stack+0x2c/0x3c [ 82.892526][ T5136] __dump_stack+0x30/0x40 [ 82.893173][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.893824][ T5136] dump_stack+0x1c/0x5c [ 82.894477][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.895271][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.896025][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.896723][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.897313][ T5136] inet_sendmsg+0x154/0x284 [ 82.897989][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.898636][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.899312][ T5136] invoke_syscall+0x98/0x2b8 [ 82.900061][ T5136] el0_svc_common+0x138/0x258 [ 82.900740][ T5136] do_el0_svc+0x58/0x14c [ 82.901381][ T5136] el0_svc+0x78/0x1e0 [ 82.901937][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.902668][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.903447][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.905099][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.906088][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.907543][ T5136] Call trace: [ 82.907990][ T5136] dump_backtrace+0x0/0x43c [ 82.908658][ T5136] show_stack+0x2c/0x3c [ 82.909311][ T5136] __dump_stack+0x30/0x40 [ 82.909994][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.910696][ T5136] dump_stack+0x1c/0x5c [ 82.911286][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.912100][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.912829][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.913541][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.914197][ T5136] inet_sendmsg+0x154/0x284 [ 82.914917][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.915622][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.916310][ T5136] invoke_syscall+0x98/0x2b8 [ 82.916986][ T5136] el0_svc_common+0x138/0x258 [ 82.917645][ T5136] do_el0_svc+0x58/0x14c [ 82.918270][ T5136] el0_svc+0x78/0x1e0 [ 82.918910][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.919603][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.920457][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.921997][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.923060][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.924470][ T5136] Call trace: [ 82.924941][ T5136] dump_backtrace+0x0/0x43c [ 82.925634][ T5136] show_stack+0x2c/0x3c [ 82.926247][ T5136] __dump_stack+0x30/0x40 [ 82.926887][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.927554][ T5136] dump_stack+0x1c/0x5c [ 82.928157][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.928997][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.929743][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.930416][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.931026][ T5136] inet_sendmsg+0x154/0x284 [ 82.931633][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.932311][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.933094][ T5136] invoke_syscall+0x98/0x2b8 [ 82.933827][ T5136] el0_svc_common+0x138/0x258 [ 82.934544][ T5136] do_el0_svc+0x58/0x14c [ 82.935157][ T5136] el0_svc+0x78/0x1e0 [ 82.935720][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.936413][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.937451][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.938944][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.939931][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.941351][ T5136] Call trace: [ 82.941793][ T5136] dump_backtrace+0x0/0x43c [ 82.942439][ T5136] show_stack+0x2c/0x3c [ 82.943063][ T5136] __dump_stack+0x30/0x40 [ 82.943652][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.944388][ T5136] dump_stack+0x1c/0x5c [ 82.944993][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.945805][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.946514][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.947198][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.947860][ T5136] inet_sendmsg+0x154/0x284 [ 82.948528][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.949168][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.949852][ T5136] invoke_syscall+0x98/0x2b8 [ 82.950539][ T5136] el0_svc_common+0x138/0x258 [ 82.951230][ T5136] do_el0_svc+0x58/0x14c [ 82.951847][ T5136] el0_svc+0x78/0x1e0 [ 82.952436][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.953132][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.953984][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.955784][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.956773][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.958247][ T5136] Call trace: [ 82.958712][ T5136] dump_backtrace+0x0/0x43c [ 82.959388][ T5136] show_stack+0x2c/0x3c [ 82.959915][ T5136] __dump_stack+0x30/0x40 [ 82.960512][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.961183][ T5136] dump_stack+0x1c/0x5c [ 82.961764][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.962535][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.963243][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.963915][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.964554][ T5136] inet_sendmsg+0x154/0x284 [ 82.965150][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.965824][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.966526][ T5136] invoke_syscall+0x98/0x2b8 [ 82.967249][ T5136] el0_svc_common+0x138/0x258 [ 82.968030][ T5136] do_el0_svc+0x58/0x14c [ 82.968707][ T5136] el0_svc+0x78/0x1e0 [ 82.969307][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.970088][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.970934][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.972521][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.973557][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.975071][ T5136] Call trace: [ 82.975547][ T5136] dump_backtrace+0x0/0x43c [ 82.976240][ T5136] show_stack+0x2c/0x3c [ 82.976881][ T5136] __dump_stack+0x30/0x40 [ 82.977574][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.978281][ T5136] dump_stack+0x1c/0x5c [ 82.978910][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.979761][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.980500][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.981216][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.981842][ T5136] inet_sendmsg+0x154/0x284 [ 82.982593][ T5136] __sys_sendto+0x2e8/0x3d8 [ 82.983259][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 82.983994][ T5136] invoke_syscall+0x98/0x2b8 [ 82.984721][ T5136] el0_svc_common+0x138/0x258 [ 82.985480][ T5136] do_el0_svc+0x58/0x14c [ 82.986150][ T5136] el0_svc+0x78/0x1e0 [ 82.986759][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 82.987538][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 82.988530][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 82.990274][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 82.991413][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.992884][ T5136] Call trace: [ 82.993340][ T5136] dump_backtrace+0x0/0x43c [ 82.993979][ T5136] show_stack+0x2c/0x3c [ 82.994609][ T5136] __dump_stack+0x30/0x40 [ 82.995316][ T5136] dump_stack_lvl+0xf8/0x160 [ 82.995977][ T5136] dump_stack+0x1c/0x5c [ 82.996615][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 82.997473][ T5136] dccp_xmit_packet+0x298/0x448 [ 82.998237][ T5136] dccp_write_xmit+0x118/0x1d0 [ 82.998940][ T5136] dccp_sendmsg+0x538/0x8a8 [ 82.999616][ T5136] inet_sendmsg+0x154/0x284 [ 83.000266][ T5136] __sys_sendto+0x2e8/0x3d8 [ 83.000896][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 83.001605][ T5136] invoke_syscall+0x98/0x2b8 [ 83.002296][ T5136] el0_svc_common+0x138/0x258 [ 83.002986][ T5136] do_el0_svc+0x58/0x14c [ 83.003645][ T5136] el0_svc+0x78/0x1e0 [ 83.004250][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 83.004999][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 83.006055][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.007677][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 83.008766][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.010136][ T5136] Call trace: [ 83.010586][ T5136] dump_backtrace+0x0/0x43c [ 83.011194][ T5136] show_stack+0x2c/0x3c [ 83.011816][ T5136] __dump_stack+0x30/0x40 [ 83.012445][ T5136] dump_stack_lvl+0xf8/0x160 [ 83.013088][ T5136] dump_stack+0x1c/0x5c [ 83.013702][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.014479][ T5136] dccp_xmit_packet+0x298/0x448 [ 83.015223][ T5136] dccp_write_xmit+0x118/0x1d0 [ 83.015881][ T5136] dccp_sendmsg+0x538/0x8a8 [ 83.016499][ T5136] inet_sendmsg+0x154/0x284 [ 83.017126][ T5136] __sys_sendto+0x2e8/0x3d8 [ 83.017791][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 83.018488][ T5136] invoke_syscall+0x98/0x2b8 [ 83.019150][ T5136] el0_svc_common+0x138/0x258 [ 83.019838][ T5136] do_el0_svc+0x58/0x14c [ 83.020411][ T5136] el0_svc+0x78/0x1e0 [ 83.020983][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 83.021728][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 83.022532][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.024162][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 83.025230][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.026664][ T5136] Call trace: [ 83.027134][ T5136] dump_backtrace+0x0/0x43c [ 83.027757][ T5136] show_stack+0x2c/0x3c [ 83.028335][ T5136] __dump_stack+0x30/0x40 [ 83.028999][ T5136] dump_stack_lvl+0xf8/0x160 [ 83.029645][ T5136] dump_stack+0x1c/0x5c [ 83.030248][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.031037][ T5136] dccp_xmit_packet+0x298/0x448 [ 83.031726][ T5136] dccp_write_xmit+0x118/0x1d0 [ 83.032414][ T5136] dccp_sendmsg+0x538/0x8a8 [ 83.033028][ T5136] inet_sendmsg+0x154/0x284 [ 83.033632][ T5136] __sys_sendto+0x2e8/0x3d8 [ 83.034267][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 83.034962][ T5136] invoke_syscall+0x98/0x2b8 [ 83.035669][ T5136] el0_svc_common+0x138/0x258 [ 83.036331][ T5136] do_el0_svc+0x58/0x14c [ 83.036949][ T5136] el0_svc+0x78/0x1e0 [ 83.037535][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 83.038257][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 83.039162][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.040885][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 83.041932][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.043465][ T5136] Call trace: [ 83.043943][ T5136] dump_backtrace+0x0/0x43c [ 83.044654][ T5136] show_stack+0x2c/0x3c [ 83.045272][ T5136] __dump_stack+0x30/0x40 [ 83.045966][ T5136] dump_stack_lvl+0xf8/0x160 [ 83.046617][ T5136] dump_stack+0x1c/0x5c [ 83.047205][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.047943][ T5136] dccp_xmit_packet+0x298/0x448 [ 83.048671][ T5136] dccp_write_xmit+0x118/0x1d0 [ 83.049323][ T5136] dccp_sendmsg+0x538/0x8a8 [ 83.049989][ T5136] inet_sendmsg+0x154/0x284 [ 83.050641][ T5136] __sys_sendto+0x2e8/0x3d8 [ 83.051326][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 83.052012][ T5136] invoke_syscall+0x98/0x2b8 [ 83.052652][ T5136] el0_svc_common+0x138/0x258 [ 83.053360][ T5136] do_el0_svc+0x58/0x14c [ 83.054014][ T5136] el0_svc+0x78/0x1e0 [ 83.054598][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 83.055329][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 83.056137][ T5136] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.057643][ T5136] CPU: 0 PID: 5136 Comm: syz.0.48 Not tainted syzkaller #0 [ 83.058668][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.060065][ T5136] Call trace: [ 83.060539][ T5136] dump_backtrace+0x0/0x43c [ 83.061144][ T5136] show_stack+0x2c/0x3c [ 83.061737][ T5136] __dump_stack+0x30/0x40 [ 83.062353][ T5136] dump_stack_lvl+0xf8/0x160 [ 83.063030][ T5136] dump_stack+0x1c/0x5c [ 83.063664][ T5136] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.064392][ T5136] dccp_xmit_packet+0x298/0x448 [ 83.065108][ T5136] dccp_write_xmit+0x118/0x1d0 [ 83.065748][ T5136] dccp_sendmsg+0x538/0x8a8 [ 83.066387][ T5136] inet_sendmsg+0x154/0x284 [ 83.067053][ T5136] __sys_sendto+0x2e8/0x3d8 [ 83.067705][ T5136] __arm64_sys_sendto+0xd8/0xf8 [ 83.068376][ T5136] invoke_syscall+0x98/0x2b8 [ 83.069055][ T5136] el0_svc_common+0x138/0x258 [ 83.069683][ T5136] do_el0_svc+0x58/0x14c [ 83.070324][ T5136] el0_svc+0x78/0x1e0 [ 83.070907][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 83.071678][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 83.082888][ T5138] dccp_xmit_packet: Payload too large (65475) for featneg. [ 83.090312][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.091948][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.093052][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.094507][ T5138] Call trace: [ 83.094993][ T5138] dump_backtrace+0x0/0x43c [ 83.095637][ T5138] show_stack+0x2c/0x3c [ 83.096251][ T5138] __dump_stack+0x30/0x40 [ 83.096937][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.097680][ T5138] dump_stack+0x1c/0x5c [ 83.098262][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.099103][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.099770][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.100458][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.101103][ T5138] inet_sendmsg+0x154/0x284 [ 83.101744][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.102389][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.103080][ T5138] invoke_syscall+0x98/0x2b8 [ 83.103707][ T5138] el0_svc_common+0x138/0x258 [ 83.104404][ T5138] do_el0_svc+0x58/0x14c [ 83.104960][ T5138] el0_svc+0x78/0x1e0 [ 83.105552][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.106309][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.107173][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.108736][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.109751][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.111106][ T5138] Call trace: [ 83.111560][ T5138] dump_backtrace+0x0/0x43c [ 83.112170][ T5138] show_stack+0x2c/0x3c [ 83.112763][ T5138] __dump_stack+0x30/0x40 [ 83.113444][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.114143][ T5138] dump_stack+0x1c/0x5c [ 83.114755][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.115543][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.116256][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.116980][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.117655][ T5138] inet_sendmsg+0x154/0x284 [ 83.118333][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.118969][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.119669][ T5138] invoke_syscall+0x98/0x2b8 [ 83.120339][ T5138] el0_svc_common+0x138/0x258 [ 83.121035][ T5138] do_el0_svc+0x58/0x14c [ 83.121662][ T5138] el0_svc+0x78/0x1e0 [ 83.122215][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.122983][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.123821][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.125909][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.126856][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.128310][ T5138] Call trace: [ 83.128762][ T5138] dump_backtrace+0x0/0x43c [ 83.129397][ T5138] show_stack+0x2c/0x3c [ 83.129969][ T5138] __dump_stack+0x30/0x40 [ 83.130549][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.131188][ T5138] dump_stack+0x1c/0x5c [ 83.131715][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.132459][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.133118][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.133765][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.134376][ T5138] inet_sendmsg+0x154/0x284 [ 83.134965][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.135625][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.136326][ T5138] invoke_syscall+0x98/0x2b8 [ 83.136970][ T5138] el0_svc_common+0x138/0x258 [ 83.137602][ T5138] do_el0_svc+0x58/0x14c [ 83.138189][ T5138] el0_svc+0x78/0x1e0 [ 83.138765][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.139468][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.140352][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.141971][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.143007][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.144715][ T5138] Call trace: [ 83.145219][ T5138] dump_backtrace+0x0/0x43c [ 83.145930][ T5138] show_stack+0x2c/0x3c [ 83.146570][ T5138] __dump_stack+0x30/0x40 [ 83.147232][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.147930][ T5138] dump_stack+0x1c/0x5c [ 83.148583][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.149379][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.150111][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.150758][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.151364][ T5138] inet_sendmsg+0x154/0x284 [ 83.151985][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.152619][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.153300][ T5138] invoke_syscall+0x98/0x2b8 [ 83.153977][ T5138] el0_svc_common+0x138/0x258 [ 83.154635][ T5138] do_el0_svc+0x58/0x14c [ 83.155283][ T5138] el0_svc+0x78/0x1e0 [ 83.155888][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.156577][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.157486][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.159062][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.160073][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.161502][ T5138] Call trace: [ 83.161924][ T5138] dump_backtrace+0x0/0x43c [ 83.162591][ T5138] show_stack+0x2c/0x3c [ 83.163192][ T5138] __dump_stack+0x30/0x40 [ 83.163767][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.164396][ T5138] dump_stack+0x1c/0x5c [ 83.164987][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.165813][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.166519][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.167207][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.167828][ T5138] inet_sendmsg+0x154/0x284 [ 83.168465][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.169106][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.169838][ T5138] invoke_syscall+0x98/0x2b8 [ 83.170540][ T5138] el0_svc_common+0x138/0x258 [ 83.171247][ T5138] do_el0_svc+0x58/0x14c [ 83.171839][ T5138] el0_svc+0x78/0x1e0 [ 83.172383][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.173133][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.173982][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.175534][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.176483][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.177912][ T5138] Call trace: [ 83.178376][ T5138] dump_backtrace+0x0/0x43c [ 83.179034][ T5138] show_stack+0x2c/0x3c [ 83.179630][ T5138] __dump_stack+0x30/0x40 [ 83.180240][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.180900][ T5138] dump_stack+0x1c/0x5c [ 83.181483][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.182217][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.182914][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.183623][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.184273][ T5138] inet_sendmsg+0x154/0x284 [ 83.185001][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.185624][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.186326][ T5138] invoke_syscall+0x98/0x2b8 [ 83.187020][ T5138] el0_svc_common+0x138/0x258 [ 83.187813][ T5138] do_el0_svc+0x58/0x14c [ 83.188446][ T5138] el0_svc+0x78/0x1e0 [ 83.189027][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.189827][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.190740][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.192247][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.193239][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.194563][ T5138] Call trace: [ 83.195059][ T5138] dump_backtrace+0x0/0x43c [ 83.195722][ T5138] show_stack+0x2c/0x3c [ 83.196300][ T5138] __dump_stack+0x30/0x40 [ 83.196929][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.197603][ T5138] dump_stack+0x1c/0x5c [ 83.198174][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.198930][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.199632][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.200345][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.200974][ T5138] inet_sendmsg+0x154/0x284 [ 83.201632][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.202273][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.202957][ T5138] invoke_syscall+0x98/0x2b8 [ 83.203646][ T5138] el0_svc_common+0x138/0x258 [ 83.204391][ T5138] do_el0_svc+0x58/0x14c [ 83.205077][ T5138] el0_svc+0x78/0x1e0 [ 83.205634][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.206397][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.207264][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.208887][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.209998][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.211421][ T5138] Call trace: [ 83.211876][ T5138] dump_backtrace+0x0/0x43c [ 83.212616][ T5138] show_stack+0x2c/0x3c [ 83.213221][ T5138] __dump_stack+0x30/0x40 [ 83.213911][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.214624][ T5138] dump_stack+0x1c/0x5c [ 83.215280][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.216121][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.216858][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.217533][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.218220][ T5138] inet_sendmsg+0x154/0x284 [ 83.218881][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.219558][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.220216][ T5138] invoke_syscall+0x98/0x2b8 [ 83.220878][ T5138] el0_svc_common+0x138/0x258 [ 83.221564][ T5138] do_el0_svc+0x58/0x14c [ 83.222181][ T5138] el0_svc+0x78/0x1e0 [ 83.222753][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.223440][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.224311][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.225819][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.226719][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.228097][ T5138] Call trace: [ 83.228557][ T5138] dump_backtrace+0x0/0x43c [ 83.229243][ T5138] show_stack+0x2c/0x3c [ 83.229856][ T5138] __dump_stack+0x30/0x40 [ 83.230476][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.231127][ T5138] dump_stack+0x1c/0x5c [ 83.231700][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.232495][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.233117][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.233815][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.234468][ T5138] inet_sendmsg+0x154/0x284 [ 83.235103][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.235754][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.236431][ T5138] invoke_syscall+0x98/0x2b8 [ 83.237125][ T5138] el0_svc_common+0x138/0x258 [ 83.237837][ T5138] do_el0_svc+0x58/0x14c [ 83.238428][ T5138] el0_svc+0x78/0x1e0 [ 83.238983][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.239715][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.240572][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.242124][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.243252][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.244797][ T5138] Call trace: [ 83.245283][ T5138] dump_backtrace+0x0/0x43c [ 83.245936][ T5138] show_stack+0x2c/0x3c [ 83.246540][ T5138] __dump_stack+0x30/0x40 [ 83.247141][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.247842][ T5138] dump_stack+0x1c/0x5c [ 83.248386][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.249151][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.249862][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.250626][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.251296][ T5138] inet_sendmsg+0x154/0x284 [ 83.251952][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.252551][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.253231][ T5138] invoke_syscall+0x98/0x2b8 [ 83.253869][ T5138] el0_svc_common+0x138/0x258 [ 83.254570][ T5138] do_el0_svc+0x58/0x14c [ 83.255202][ T5138] el0_svc+0x78/0x1e0 [ 83.255758][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.256422][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.257191][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.258627][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.259580][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.260922][ T5138] Call trace: [ 83.261334][ T5138] dump_backtrace+0x0/0x43c [ 83.261887][ T5138] show_stack+0x2c/0x3c [ 83.262415][ T5138] __dump_stack+0x30/0x40 [ 83.263032][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.263662][ T5138] dump_stack+0x1c/0x5c [ 83.264186][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.265001][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.265683][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.266316][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.266982][ T5138] inet_sendmsg+0x154/0x284 [ 83.267664][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.268335][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.269006][ T5138] invoke_syscall+0x98/0x2b8 [ 83.269644][ T5138] el0_svc_common+0x138/0x258 [ 83.270340][ T5138] do_el0_svc+0x58/0x14c [ 83.270897][ T5138] el0_svc+0x78/0x1e0 [ 83.271438][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.272174][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.273195][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.274768][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.275779][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.277212][ T5138] Call trace: [ 83.277650][ T5138] dump_backtrace+0x0/0x43c [ 83.278351][ T5138] show_stack+0x2c/0x3c [ 83.278988][ T5138] __dump_stack+0x30/0x40 [ 83.279643][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.280302][ T5138] dump_stack+0x1c/0x5c [ 83.280882][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.281694][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.282385][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.283076][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.283676][ T5138] inet_sendmsg+0x154/0x284 [ 83.284282][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.284961][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.285655][ T5138] invoke_syscall+0x98/0x2b8 [ 83.286274][ T5138] el0_svc_common+0x138/0x258 [ 83.286942][ T5138] do_el0_svc+0x58/0x14c [ 83.287513][ T5138] el0_svc+0x78/0x1e0 [ 83.288117][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.288875][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.289675][ T5138] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.291165][ T5138] CPU: 0 PID: 5138 Comm: syz.0.49 Not tainted syzkaller #0 [ 83.292239][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.293627][ T5138] Call trace: [ 83.294103][ T5138] dump_backtrace+0x0/0x43c [ 83.294743][ T5138] show_stack+0x2c/0x3c [ 83.295358][ T5138] __dump_stack+0x30/0x40 [ 83.295957][ T5138] dump_stack_lvl+0xf8/0x160 [ 83.296566][ T5138] dump_stack+0x1c/0x5c [ 83.297129][ T5138] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.297912][ T5138] dccp_xmit_packet+0x298/0x448 [ 83.298630][ T5138] dccp_write_xmit+0x118/0x1d0 [ 83.299330][ T5138] dccp_sendmsg+0x538/0x8a8 [ 83.299985][ T5138] inet_sendmsg+0x154/0x284 [ 83.300588][ T5138] __sys_sendto+0x2e8/0x3d8 [ 83.301228][ T5138] __arm64_sys_sendto+0xd8/0xf8 [ 83.301924][ T5138] invoke_syscall+0x98/0x2b8 [ 83.302537][ T5138] el0_svc_common+0x138/0x258 [ 83.303189][ T5138] do_el0_svc+0x58/0x14c [ 83.303828][ T5138] el0_svc+0x78/0x1e0 [ 83.304374][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 83.305112][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 83.322685][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.324566][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.325614][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.327082][ T5140] Call trace: [ 83.327546][ T5140] dump_backtrace+0x0/0x43c [ 83.328130][ T5140] show_stack+0x2c/0x3c [ 83.328673][ T5140] __dump_stack+0x30/0x40 [ 83.329279][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.329952][ T5140] dump_stack+0x1c/0x5c [ 83.330532][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.331258][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.331900][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.332572][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.333250][ T5140] inet_sendmsg+0x154/0x284 [ 83.333896][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.334572][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.335254][ T5140] invoke_syscall+0x98/0x2b8 [ 83.335906][ T5140] el0_svc_common+0x138/0x258 [ 83.336589][ T5140] do_el0_svc+0x58/0x14c [ 83.337244][ T5140] el0_svc+0x78/0x1e0 [ 83.337763][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.338508][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.339323][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.340937][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.341927][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.343297][ T5140] Call trace: [ 83.343710][ T5140] dump_backtrace+0x0/0x43c [ 83.344330][ T5140] show_stack+0x2c/0x3c [ 83.344919][ T5140] __dump_stack+0x30/0x40 [ 83.345564][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.346205][ T5140] dump_stack+0x1c/0x5c [ 83.346799][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.347592][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.348305][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.348908][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.349588][ T5140] inet_sendmsg+0x154/0x284 [ 83.350231][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.350879][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.351619][ T5140] invoke_syscall+0x98/0x2b8 [ 83.352247][ T5140] el0_svc_common+0x138/0x258 [ 83.352900][ T5140] do_el0_svc+0x58/0x14c [ 83.353496][ T5140] el0_svc+0x78/0x1e0 [ 83.354041][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.354784][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.356131][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.357674][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.358740][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.360047][ T5140] Call trace: [ 83.360490][ T5140] dump_backtrace+0x0/0x43c [ 83.361147][ T5140] show_stack+0x2c/0x3c [ 83.361750][ T5140] __dump_stack+0x30/0x40 [ 83.362417][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.363058][ T5140] dump_stack+0x1c/0x5c [ 83.363749][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.364488][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.365202][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.365871][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.366536][ T5140] inet_sendmsg+0x154/0x284 [ 83.367176][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.367778][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.368465][ T5140] invoke_syscall+0x98/0x2b8 [ 83.369139][ T5140] el0_svc_common+0x138/0x258 [ 83.369792][ T5140] do_el0_svc+0x58/0x14c [ 83.370422][ T5140] el0_svc+0x78/0x1e0 [ 83.370948][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.371625][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.372493][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.374048][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.375125][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.376550][ T5140] Call trace: [ 83.377013][ T5140] dump_backtrace+0x0/0x43c [ 83.377648][ T5140] show_stack+0x2c/0x3c [ 83.378257][ T5140] __dump_stack+0x30/0x40 [ 83.378895][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.379543][ T5140] dump_stack+0x1c/0x5c [ 83.380147][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.380959][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.381671][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.382390][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.383036][ T5140] inet_sendmsg+0x154/0x284 [ 83.383705][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.384321][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.385046][ T5140] invoke_syscall+0x98/0x2b8 [ 83.385754][ T5140] el0_svc_common+0x138/0x258 [ 83.386382][ T5140] do_el0_svc+0x58/0x14c [ 83.386982][ T5140] el0_svc+0x78/0x1e0 [ 83.387586][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.388336][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.389172][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.390718][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.391711][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.393278][ T5140] Call trace: [ 83.393727][ T5140] dump_backtrace+0x0/0x43c [ 83.394392][ T5140] show_stack+0x2c/0x3c [ 83.394959][ T5140] __dump_stack+0x30/0x40 [ 83.395626][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.396271][ T5140] dump_stack+0x1c/0x5c [ 83.396879][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.397649][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.398470][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.399256][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.400024][ T5140] inet_sendmsg+0x154/0x284 [ 83.400747][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.401404][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.402105][ T5140] invoke_syscall+0x98/0x2b8 [ 83.402796][ T5140] el0_svc_common+0x138/0x258 [ 83.403470][ T5140] do_el0_svc+0x58/0x14c [ 83.404101][ T5140] el0_svc+0x78/0x1e0 [ 83.404700][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.405509][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.406345][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.407937][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.408951][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.410292][ T5140] Call trace: [ 83.410763][ T5140] dump_backtrace+0x0/0x43c [ 83.411419][ T5140] show_stack+0x2c/0x3c [ 83.411974][ T5140] __dump_stack+0x30/0x40 [ 83.412586][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.413230][ T5140] dump_stack+0x1c/0x5c [ 83.413869][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.414603][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.415332][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.416047][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.416714][ T5140] inet_sendmsg+0x154/0x284 [ 83.417394][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.418070][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.418800][ T5140] invoke_syscall+0x98/0x2b8 [ 83.419432][ T5140] el0_svc_common+0x138/0x258 [ 83.420151][ T5140] do_el0_svc+0x58/0x14c [ 83.420750][ T5140] el0_svc+0x78/0x1e0 [ 83.421402][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.422133][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.422972][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.424522][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.425525][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.426890][ T5140] Call trace: [ 83.427323][ T5140] dump_backtrace+0x0/0x43c [ 83.428000][ T5140] show_stack+0x2c/0x3c [ 83.428574][ T5140] __dump_stack+0x30/0x40 [ 83.429188][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.429875][ T5140] dump_stack+0x1c/0x5c [ 83.430477][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.431247][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.431943][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.432634][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.433278][ T5140] inet_sendmsg+0x154/0x284 [ 83.433929][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.434522][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.435225][ T5140] invoke_syscall+0x98/0x2b8 [ 83.435864][ T5140] el0_svc_common+0x138/0x258 [ 83.436584][ T5140] do_el0_svc+0x58/0x14c [ 83.437179][ T5140] el0_svc+0x78/0x1e0 [ 83.437802][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.438509][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.439294][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.440961][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.441989][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.443370][ T5140] Call trace: [ 83.443885][ T5140] dump_backtrace+0x0/0x43c [ 83.444524][ T5140] show_stack+0x2c/0x3c [ 83.445153][ T5140] __dump_stack+0x30/0x40 [ 83.445821][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.446476][ T5140] dump_stack+0x1c/0x5c [ 83.447089][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.447893][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.448590][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.449290][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.449918][ T5140] inet_sendmsg+0x154/0x284 [ 83.450586][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.451234][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.451933][ T5140] invoke_syscall+0x98/0x2b8 [ 83.452599][ T5140] el0_svc_common+0x138/0x258 [ 83.453317][ T5140] do_el0_svc+0x58/0x14c [ 83.453930][ T5140] el0_svc+0x78/0x1e0 [ 83.454498][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.455290][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.456173][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.457825][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.458807][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.460229][ T5140] Call trace: [ 83.460695][ T5140] dump_backtrace+0x0/0x43c [ 83.461357][ T5140] show_stack+0x2c/0x3c [ 83.461892][ T5140] __dump_stack+0x30/0x40 [ 83.462470][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.463085][ T5140] dump_stack+0x1c/0x5c [ 83.463660][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.464351][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.464989][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.465670][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.466338][ T5140] inet_sendmsg+0x154/0x284 [ 83.467021][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.467653][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.468368][ T5140] invoke_syscall+0x98/0x2b8 [ 83.469037][ T5140] el0_svc_common+0x138/0x258 [ 83.469677][ T5140] do_el0_svc+0x58/0x14c [ 83.470240][ T5140] el0_svc+0x78/0x1e0 [ 83.470800][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.471496][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.472740][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.474314][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.475301][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.476581][ T5140] Call trace: [ 83.477034][ T5140] dump_backtrace+0x0/0x43c [ 83.477620][ T5140] show_stack+0x2c/0x3c [ 83.478221][ T5140] __dump_stack+0x30/0x40 [ 83.478847][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.479476][ T5140] dump_stack+0x1c/0x5c [ 83.480069][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.480829][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.481505][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.482152][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.482791][ T5140] inet_sendmsg+0x154/0x284 [ 83.483362][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.483981][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.484679][ T5140] invoke_syscall+0x98/0x2b8 [ 83.485325][ T5140] el0_svc_common+0x138/0x258 [ 83.486016][ T5140] do_el0_svc+0x58/0x14c [ 83.486642][ T5140] el0_svc+0x78/0x1e0 [ 83.487285][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.488041][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.488890][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.490612][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.491643][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.493141][ T5140] Call trace: [ 83.493588][ T5140] dump_backtrace+0x0/0x43c [ 83.494253][ T5140] show_stack+0x2c/0x3c [ 83.494861][ T5140] __dump_stack+0x30/0x40 [ 83.495467][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.496156][ T5140] dump_stack+0x1c/0x5c [ 83.496776][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.497544][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.498247][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.498894][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.499474][ T5140] inet_sendmsg+0x154/0x284 [ 83.500087][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.500736][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.501380][ T5140] invoke_syscall+0x98/0x2b8 [ 83.502007][ T5140] el0_svc_common+0x138/0x258 [ 83.502641][ T5140] do_el0_svc+0x58/0x14c [ 83.503216][ T5140] el0_svc+0x78/0x1e0 [ 83.503781][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.504438][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.505227][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.506721][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.507734][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.509148][ T5140] Call trace: [ 83.509571][ T5140] dump_backtrace+0x0/0x43c [ 83.510186][ T5140] show_stack+0x2c/0x3c [ 83.510786][ T5140] __dump_stack+0x30/0x40 [ 83.511419][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.512006][ T5140] dump_stack+0x1c/0x5c [ 83.512580][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.513300][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.514002][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.514712][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.515361][ T5140] inet_sendmsg+0x154/0x284 [ 83.515982][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.516620][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.517340][ T5140] invoke_syscall+0x98/0x2b8 [ 83.518003][ T5140] el0_svc_common+0x138/0x258 [ 83.518653][ T5140] do_el0_svc+0x58/0x14c [ 83.519238][ T5140] el0_svc+0x78/0x1e0 [ 83.519787][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.520448][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.521283][ T5140] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.522849][ T5140] CPU: 0 PID: 5140 Comm: syz.0.50 Not tainted syzkaller #0 [ 83.523832][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.525226][ T5140] Call trace: [ 83.525681][ T5140] dump_backtrace+0x0/0x43c [ 83.526301][ T5140] show_stack+0x2c/0x3c [ 83.526924][ T5140] __dump_stack+0x30/0x40 [ 83.527566][ T5140] dump_stack_lvl+0xf8/0x160 [ 83.528221][ T5140] dump_stack+0x1c/0x5c [ 83.528832][ T5140] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.529623][ T5140] dccp_xmit_packet+0x298/0x448 [ 83.530379][ T5140] dccp_write_xmit+0x118/0x1d0 [ 83.531081][ T5140] dccp_sendmsg+0x538/0x8a8 [ 83.531714][ T5140] inet_sendmsg+0x154/0x284 [ 83.532354][ T5140] __sys_sendto+0x2e8/0x3d8 [ 83.532992][ T5140] __arm64_sys_sendto+0xd8/0xf8 [ 83.533672][ T5140] invoke_syscall+0x98/0x2b8 [ 83.534308][ T5140] el0_svc_common+0x138/0x258 [ 83.534956][ T5140] do_el0_svc+0x58/0x14c [ 83.535538][ T5140] el0_svc+0x78/0x1e0 [ 83.536089][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 83.536850][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 83.553787][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.555590][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.556620][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.558070][ T5142] Call trace: [ 83.558494][ T5142] dump_backtrace+0x0/0x43c [ 83.559122][ T5142] show_stack+0x2c/0x3c [ 83.559694][ T5142] __dump_stack+0x30/0x40 [ 83.560294][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.560970][ T5142] dump_stack+0x1c/0x5c [ 83.561605][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.562373][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.563039][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.563663][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.564326][ T5142] inet_sendmsg+0x154/0x284 [ 83.564977][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.565747][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.566456][ T5142] invoke_syscall+0x98/0x2b8 [ 83.567100][ T5142] el0_svc_common+0x138/0x258 [ 83.567759][ T5142] do_el0_svc+0x58/0x14c [ 83.568369][ T5142] el0_svc+0x78/0x1e0 [ 83.568900][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.569632][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.570494][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.572042][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.573019][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.574491][ T5142] Call trace: [ 83.574958][ T5142] dump_backtrace+0x0/0x43c [ 83.575588][ T5142] show_stack+0x2c/0x3c [ 83.576176][ T5142] __dump_stack+0x30/0x40 [ 83.576766][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.577397][ T5142] dump_stack+0x1c/0x5c [ 83.577972][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.578855][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.579546][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.580257][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.580912][ T5142] inet_sendmsg+0x154/0x284 [ 83.581594][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.582213][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.582953][ T5142] invoke_syscall+0x98/0x2b8 [ 83.583594][ T5142] el0_svc_common+0x138/0x258 [ 83.584259][ T5142] do_el0_svc+0x58/0x14c [ 83.584866][ T5142] el0_svc+0x78/0x1e0 [ 83.585483][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.586228][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.587520][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.589050][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.590069][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.591548][ T5142] Call trace: [ 83.592018][ T5142] dump_backtrace+0x0/0x43c [ 83.592661][ T5142] show_stack+0x2c/0x3c [ 83.593197][ T5142] __dump_stack+0x30/0x40 [ 83.593777][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.594456][ T5142] dump_stack+0x1c/0x5c [ 83.595080][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.595933][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.596572][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.597240][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.597822][ T5142] inet_sendmsg+0x154/0x284 [ 83.598525][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.599198][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.599904][ T5142] invoke_syscall+0x98/0x2b8 [ 83.600552][ T5142] el0_svc_common+0x138/0x258 [ 83.601276][ T5142] do_el0_svc+0x58/0x14c [ 83.601858][ T5142] el0_svc+0x78/0x1e0 [ 83.602490][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.603162][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.604077][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.605724][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.606748][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.608136][ T5142] Call trace: [ 83.608643][ T5142] dump_backtrace+0x0/0x43c [ 83.609290][ T5142] show_stack+0x2c/0x3c [ 83.609900][ T5142] __dump_stack+0x30/0x40 [ 83.610480][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.611082][ T5142] dump_stack+0x1c/0x5c [ 83.611679][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.612421][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.613128][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.613786][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.614429][ T5142] inet_sendmsg+0x154/0x284 [ 83.615081][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.615720][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.616420][ T5142] invoke_syscall+0x98/0x2b8 [ 83.617107][ T5142] el0_svc_common+0x138/0x258 [ 83.617808][ T5142] do_el0_svc+0x58/0x14c [ 83.618420][ T5142] el0_svc+0x78/0x1e0 [ 83.618989][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.619708][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.620519][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.622046][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.623056][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.624483][ T5142] Call trace: [ 83.624990][ T5142] dump_backtrace+0x0/0x43c [ 83.625639][ T5142] show_stack+0x2c/0x3c [ 83.626233][ T5142] __dump_stack+0x30/0x40 [ 83.626850][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.627529][ T5142] dump_stack+0x1c/0x5c [ 83.628102][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.628845][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.629545][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.630252][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.630910][ T5142] inet_sendmsg+0x154/0x284 [ 83.631553][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.632171][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.632855][ T5142] invoke_syscall+0x98/0x2b8 [ 83.633484][ T5142] el0_svc_common+0x138/0x258 [ 83.634180][ T5142] do_el0_svc+0x58/0x14c [ 83.634831][ T5142] el0_svc+0x78/0x1e0 [ 83.635452][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.636126][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.637032][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.638620][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.639618][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.641010][ T5142] Call trace: [ 83.641494][ T5142] dump_backtrace+0x0/0x43c [ 83.642113][ T5142] show_stack+0x2c/0x3c [ 83.642685][ T5142] __dump_stack+0x30/0x40 [ 83.643281][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.643947][ T5142] dump_stack+0x1c/0x5c [ 83.644554][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.645300][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.645989][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.646652][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.647208][ T5142] inet_sendmsg+0x154/0x284 [ 83.647837][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.648488][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.649132][ T5142] invoke_syscall+0x98/0x2b8 [ 83.649777][ T5142] el0_svc_common+0x138/0x258 [ 83.650456][ T5142] do_el0_svc+0x58/0x14c [ 83.651069][ T5142] el0_svc+0x78/0x1e0 [ 83.651581][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.652273][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.653097][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.654723][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.655703][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.657129][ T5142] Call trace: [ 83.657522][ T5142] dump_backtrace+0x0/0x43c [ 83.658109][ T5142] show_stack+0x2c/0x3c [ 83.658690][ T5142] __dump_stack+0x30/0x40 [ 83.659254][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.659964][ T5142] dump_stack+0x1c/0x5c [ 83.660580][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.661335][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.662037][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.662688][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.663266][ T5142] inet_sendmsg+0x154/0x284 [ 83.663956][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.664675][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.665646][ T5142] invoke_syscall+0x98/0x2b8 [ 83.666317][ T5142] el0_svc_common+0x138/0x258 [ 83.666993][ T5142] do_el0_svc+0x58/0x14c [ 83.667580][ T5142] el0_svc+0x78/0x1e0 [ 83.668199][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.668953][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.669869][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.671463][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.672516][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.673859][ T5142] Call trace: [ 83.674316][ T5142] dump_backtrace+0x0/0x43c [ 83.674961][ T5142] show_stack+0x2c/0x3c [ 83.675572][ T5142] __dump_stack+0x30/0x40 [ 83.676276][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.676933][ T5142] dump_stack+0x1c/0x5c [ 83.677513][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.678355][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.679067][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.679711][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.680371][ T5142] inet_sendmsg+0x154/0x284 [ 83.681028][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.681686][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.682396][ T5142] invoke_syscall+0x98/0x2b8 [ 83.683083][ T5142] el0_svc_common+0x138/0x258 [ 83.683832][ T5142] do_el0_svc+0x58/0x14c [ 83.684432][ T5142] el0_svc+0x78/0x1e0 [ 83.685011][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.685698][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.686488][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.687996][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.689027][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.690478][ T5142] Call trace: [ 83.690915][ T5142] dump_backtrace+0x0/0x43c [ 83.691597][ T5142] show_stack+0x2c/0x3c [ 83.692218][ T5142] __dump_stack+0x30/0x40 [ 83.692816][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.693499][ T5142] dump_stack+0x1c/0x5c [ 83.694093][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.694849][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.695493][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.696130][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.696784][ T5142] inet_sendmsg+0x154/0x284 [ 83.697449][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.698097][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.698797][ T5142] invoke_syscall+0x98/0x2b8 [ 83.699450][ T5142] el0_svc_common+0x138/0x258 [ 83.700119][ T5142] do_el0_svc+0x58/0x14c [ 83.700757][ T5142] el0_svc+0x78/0x1e0 [ 83.701314][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.702067][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.703712][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.705364][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.706361][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.707795][ T5142] Call trace: [ 83.708208][ T5142] dump_backtrace+0x0/0x43c [ 83.708773][ T5142] show_stack+0x2c/0x3c [ 83.709365][ T5142] __dump_stack+0x30/0x40 [ 83.709965][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.710620][ T5142] dump_stack+0x1c/0x5c [ 83.711255][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.712088][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.712849][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.713545][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.714231][ T5142] inet_sendmsg+0x154/0x284 [ 83.714918][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.715648][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.716341][ T5142] invoke_syscall+0x98/0x2b8 [ 83.717052][ T5142] el0_svc_common+0x138/0x258 [ 83.717786][ T5142] do_el0_svc+0x58/0x14c [ 83.718386][ T5142] el0_svc+0x78/0x1e0 [ 83.718980][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.719733][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.720646][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.722235][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.723210][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.724550][ T5142] Call trace: [ 83.725012][ T5142] dump_backtrace+0x0/0x43c [ 83.725824][ T5142] show_stack+0x2c/0x3c [ 83.726450][ T5142] __dump_stack+0x30/0x40 [ 83.727134][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.727855][ T5142] dump_stack+0x1c/0x5c [ 83.728528][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.729304][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.730008][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.730683][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.731309][ T5142] inet_sendmsg+0x154/0x284 [ 83.731920][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.732566][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.733224][ T5142] invoke_syscall+0x98/0x2b8 [ 83.733855][ T5142] el0_svc_common+0x138/0x258 [ 83.734527][ T5142] do_el0_svc+0x58/0x14c [ 83.735167][ T5142] el0_svc+0x78/0x1e0 [ 83.735730][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.736457][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.737279][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.738858][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.739860][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.741303][ T5142] Call trace: [ 83.741772][ T5142] dump_backtrace+0x0/0x43c [ 83.742419][ T5142] show_stack+0x2c/0x3c [ 83.742983][ T5142] __dump_stack+0x30/0x40 [ 83.743558][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.744190][ T5142] dump_stack+0x1c/0x5c [ 83.744792][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.745610][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.746291][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.746959][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.747598][ T5142] inet_sendmsg+0x154/0x284 [ 83.748292][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.748983][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.749666][ T5142] invoke_syscall+0x98/0x2b8 [ 83.750332][ T5142] el0_svc_common+0x138/0x258 [ 83.751030][ T5142] do_el0_svc+0x58/0x14c [ 83.751689][ T5142] el0_svc+0x78/0x1e0 [ 83.752226][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.752932][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.753768][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.755431][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.756482][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.757842][ T5142] Call trace: [ 83.758301][ T5142] dump_backtrace+0x0/0x43c [ 83.758863][ T5142] show_stack+0x2c/0x3c [ 83.759426][ T5142] __dump_stack+0x30/0x40 [ 83.760059][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.760654][ T5142] dump_stack+0x1c/0x5c [ 83.761264][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.761994][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.762670][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.763358][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.764019][ T5142] inet_sendmsg+0x154/0x284 [ 83.764664][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.765298][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.765982][ T5142] invoke_syscall+0x98/0x2b8 [ 83.766668][ T5142] el0_svc_common+0x138/0x258 [ 83.767376][ T5142] do_el0_svc+0x58/0x14c [ 83.767989][ T5142] el0_svc+0x78/0x1e0 [ 83.768571][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.769327][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.770166][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.771649][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.772641][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.774030][ T5142] Call trace: [ 83.774531][ T5142] dump_backtrace+0x0/0x43c [ 83.775255][ T5142] show_stack+0x2c/0x3c [ 83.775893][ T5142] __dump_stack+0x30/0x40 [ 83.776580][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.777251][ T5142] dump_stack+0x1c/0x5c [ 83.777849][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.778585][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.779295][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.779936][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.780569][ T5142] inet_sendmsg+0x154/0x284 [ 83.781239][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.781929][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.782654][ T5142] invoke_syscall+0x98/0x2b8 [ 83.783290][ T5142] el0_svc_common+0x138/0x258 [ 83.783992][ T5142] do_el0_svc+0x58/0x14c [ 83.784584][ T5142] el0_svc+0x78/0x1e0 [ 83.785143][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.785879][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.786666][ T5142] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.788195][ T5142] CPU: 0 PID: 5142 Comm: syz.0.51 Not tainted syzkaller #0 [ 83.789221][ T5142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.790650][ T5142] Call trace: [ 83.791094][ T5142] dump_backtrace+0x0/0x43c [ 83.791753][ T5142] show_stack+0x2c/0x3c [ 83.792338][ T5142] __dump_stack+0x30/0x40 [ 83.792943][ T5142] dump_stack_lvl+0xf8/0x160 [ 83.793577][ T5142] dump_stack+0x1c/0x5c [ 83.794107][ T5142] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.794885][ T5142] dccp_xmit_packet+0x298/0x448 [ 83.795555][ T5142] dccp_write_xmit+0x118/0x1d0 [ 83.796205][ T5142] dccp_sendmsg+0x538/0x8a8 [ 83.796863][ T5142] inet_sendmsg+0x154/0x284 [ 83.797572][ T5142] __sys_sendto+0x2e8/0x3d8 [ 83.798182][ T5142] __arm64_sys_sendto+0xd8/0xf8 [ 83.798857][ T5142] invoke_syscall+0x98/0x2b8 [ 83.799488][ T5142] el0_svc_common+0x138/0x258 [ 83.800155][ T5142] do_el0_svc+0x58/0x14c [ 83.800758][ T5142] el0_svc+0x78/0x1e0 [ 83.801375][ T5142] el0t_64_sync_handler+0xcc/0xe4 [ 83.802180][ T5142] el0t_64_sync+0x1a0/0x1a4 [ 83.820299][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.821861][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.822853][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.824404][ T5144] Call trace: [ 83.824892][ T5144] dump_backtrace+0x0/0x43c [ 83.825574][ T5144] show_stack+0x2c/0x3c [ 83.826209][ T5144] __dump_stack+0x30/0x40 [ 83.826822][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.827488][ T5144] dump_stack+0x1c/0x5c [ 83.828091][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.828864][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.829531][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.830208][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.830881][ T5144] inet_sendmsg+0x154/0x284 [ 83.831525][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.832120][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.832772][ T5144] invoke_syscall+0x98/0x2b8 [ 83.833456][ T5144] el0_svc_common+0x138/0x258 [ 83.834134][ T5144] do_el0_svc+0x58/0x14c [ 83.834732][ T5144] el0_svc+0x78/0x1e0 [ 83.835265][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.835945][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.836819][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.838306][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.839317][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.840685][ T5144] Call trace: [ 83.841109][ T5144] dump_backtrace+0x0/0x43c [ 83.841740][ T5144] show_stack+0x2c/0x3c [ 83.842354][ T5144] __dump_stack+0x30/0x40 [ 83.842983][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.843609][ T5144] dump_stack+0x1c/0x5c [ 83.844172][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.844975][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.845723][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.846383][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.846971][ T5144] inet_sendmsg+0x154/0x284 [ 83.847577][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.848199][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.848872][ T5144] invoke_syscall+0x98/0x2b8 [ 83.849544][ T5144] el0_svc_common+0x138/0x258 [ 83.850162][ T5144] do_el0_svc+0x58/0x14c [ 83.850740][ T5144] el0_svc+0x78/0x1e0 [ 83.851287][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.851983][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.852757][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.854382][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.855363][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.856795][ T5144] Call trace: [ 83.857246][ T5144] dump_backtrace+0x0/0x43c [ 83.857839][ T5144] show_stack+0x2c/0x3c [ 83.858423][ T5144] __dump_stack+0x30/0x40 [ 83.859037][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.859653][ T5144] dump_stack+0x1c/0x5c [ 83.860238][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.860994][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.861701][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.862341][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.862982][ T5144] inet_sendmsg+0x154/0x284 [ 83.863591][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.864214][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.864939][ T5144] invoke_syscall+0x98/0x2b8 [ 83.865644][ T5144] el0_svc_common+0x138/0x258 [ 83.866276][ T5144] do_el0_svc+0x58/0x14c [ 83.866846][ T5144] el0_svc+0x78/0x1e0 [ 83.867480][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.868172][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.869044][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.870632][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.871561][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.872901][ T5144] Call trace: [ 83.873344][ T5144] dump_backtrace+0x0/0x43c [ 83.873954][ T5144] show_stack+0x2c/0x3c [ 83.874576][ T5144] __dump_stack+0x30/0x40 [ 83.875206][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.875827][ T5144] dump_stack+0x1c/0x5c [ 83.876480][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.877189][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.877851][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.878567][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.879218][ T5144] inet_sendmsg+0x154/0x284 [ 83.879934][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.880550][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.881276][ T5144] invoke_syscall+0x98/0x2b8 [ 83.881974][ T5144] el0_svc_common+0x138/0x258 [ 83.882678][ T5144] do_el0_svc+0x58/0x14c [ 83.883247][ T5144] el0_svc+0x78/0x1e0 [ 83.883810][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.884539][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.885772][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.887325][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.888290][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.889676][ T5144] Call trace: [ 83.890130][ T5144] dump_backtrace+0x0/0x43c [ 83.890743][ T5144] show_stack+0x2c/0x3c [ 83.891345][ T5144] __dump_stack+0x30/0x40 [ 83.891959][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.892590][ T5144] dump_stack+0x1c/0x5c [ 83.893185][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.893932][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.894603][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.895277][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.895986][ T5144] inet_sendmsg+0x154/0x284 [ 83.896593][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.897248][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.897910][ T5144] invoke_syscall+0x98/0x2b8 [ 83.898520][ T5144] el0_svc_common+0x138/0x258 [ 83.899182][ T5144] do_el0_svc+0x58/0x14c [ 83.899812][ T5144] el0_svc+0x78/0x1e0 [ 83.900362][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.901052][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.901871][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.903338][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.904310][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.905739][ T5144] Call trace: [ 83.906174][ T5144] dump_backtrace+0x0/0x43c [ 83.906817][ T5144] show_stack+0x2c/0x3c [ 83.907436][ T5144] __dump_stack+0x30/0x40 [ 83.908019][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.908667][ T5144] dump_stack+0x1c/0x5c [ 83.909225][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.910051][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.910766][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.911443][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.912091][ T5144] inet_sendmsg+0x154/0x284 [ 83.912772][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.913420][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.914105][ T5144] invoke_syscall+0x98/0x2b8 [ 83.914764][ T5144] el0_svc_common+0x138/0x258 [ 83.915487][ T5144] do_el0_svc+0x58/0x14c [ 83.916149][ T5144] el0_svc+0x78/0x1e0 [ 83.916768][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.917537][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.918383][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.919932][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.920947][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.922304][ T5144] Call trace: [ 83.922762][ T5144] dump_backtrace+0x0/0x43c [ 83.923380][ T5144] show_stack+0x2c/0x3c [ 83.923887][ T5144] __dump_stack+0x30/0x40 [ 83.924450][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.925122][ T5144] dump_stack+0x1c/0x5c [ 83.925740][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.926492][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.927152][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.927777][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.928433][ T5144] inet_sendmsg+0x154/0x284 [ 83.929128][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.929725][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.930468][ T5144] invoke_syscall+0x98/0x2b8 [ 83.931097][ T5144] el0_svc_common+0x138/0x258 [ 83.931769][ T5144] do_el0_svc+0x58/0x14c [ 83.932397][ T5144] el0_svc+0x78/0x1e0 [ 83.932949][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.933660][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.934500][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.935978][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.936903][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.938300][ T5144] Call trace: [ 83.938736][ T5144] dump_backtrace+0x0/0x43c [ 83.939363][ T5144] show_stack+0x2c/0x3c [ 83.939971][ T5144] __dump_stack+0x30/0x40 [ 83.940629][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.941335][ T5144] dump_stack+0x1c/0x5c [ 83.941925][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.942746][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.943429][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.944131][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.944849][ T5144] inet_sendmsg+0x154/0x284 [ 83.945534][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.946160][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.946885][ T5144] invoke_syscall+0x98/0x2b8 [ 83.947528][ T5144] el0_svc_common+0x138/0x258 [ 83.948120][ T5144] do_el0_svc+0x58/0x14c [ 83.948722][ T5144] el0_svc+0x78/0x1e0 [ 83.949239][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.949926][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.950753][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.952170][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.953293][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.954694][ T5144] Call trace: [ 83.955187][ T5144] dump_backtrace+0x0/0x43c [ 83.955830][ T5144] show_stack+0x2c/0x3c [ 83.956465][ T5144] __dump_stack+0x30/0x40 [ 83.957050][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.957719][ T5144] dump_stack+0x1c/0x5c [ 83.958285][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.959043][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.959732][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.960411][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.961036][ T5144] inet_sendmsg+0x154/0x284 [ 83.961683][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.962331][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.963049][ T5144] invoke_syscall+0x98/0x2b8 [ 83.963700][ T5144] el0_svc_common+0x138/0x258 [ 83.964361][ T5144] do_el0_svc+0x58/0x14c [ 83.965027][ T5144] el0_svc+0x78/0x1e0 [ 83.965635][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.966370][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.967263][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.968788][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.969825][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.971218][ T5144] Call trace: [ 83.971661][ T5144] dump_backtrace+0x0/0x43c [ 83.972291][ T5144] show_stack+0x2c/0x3c [ 83.972897][ T5144] __dump_stack+0x30/0x40 [ 83.973523][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.974181][ T5144] dump_stack+0x1c/0x5c [ 83.974794][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.975663][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.976411][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.977142][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.977903][ T5144] inet_sendmsg+0x154/0x284 [ 83.978652][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.979323][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.980013][ T5144] invoke_syscall+0x98/0x2b8 [ 83.980692][ T5144] el0_svc_common+0x138/0x258 [ 83.981349][ T5144] do_el0_svc+0x58/0x14c [ 83.981989][ T5144] el0_svc+0x78/0x1e0 [ 83.982508][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 83.983271][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 83.984070][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 83.985641][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 83.986732][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.988116][ T5144] Call trace: [ 83.988591][ T5144] dump_backtrace+0x0/0x43c [ 83.989328][ T5144] show_stack+0x2c/0x3c [ 83.990005][ T5144] __dump_stack+0x30/0x40 [ 83.990676][ T5144] dump_stack_lvl+0xf8/0x160 [ 83.991331][ T5144] dump_stack+0x1c/0x5c [ 83.991953][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 83.992779][ T5144] dccp_xmit_packet+0x298/0x448 [ 83.993437][ T5144] dccp_write_xmit+0x118/0x1d0 [ 83.994123][ T5144] dccp_sendmsg+0x538/0x8a8 [ 83.994774][ T5144] inet_sendmsg+0x154/0x284 [ 83.995476][ T5144] __sys_sendto+0x2e8/0x3d8 [ 83.996086][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 83.996774][ T5144] invoke_syscall+0x98/0x2b8 [ 83.997481][ T5144] el0_svc_common+0x138/0x258 [ 83.998179][ T5144] do_el0_svc+0x58/0x14c [ 83.998814][ T5144] el0_svc+0x78/0x1e0 [ 83.999414][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 84.000173][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 84.001182][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.002827][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 84.003855][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.005242][ T5144] Call trace: [ 84.005747][ T5144] dump_backtrace+0x0/0x43c [ 84.006357][ T5144] show_stack+0x2c/0x3c [ 84.006991][ T5144] __dump_stack+0x30/0x40 [ 84.007633][ T5144] dump_stack_lvl+0xf8/0x160 [ 84.008309][ T5144] dump_stack+0x1c/0x5c [ 84.008923][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.009673][ T5144] dccp_xmit_packet+0x298/0x448 [ 84.010502][ T5144] dccp_write_xmit+0x118/0x1d0 [ 84.011252][ T5144] dccp_sendmsg+0x538/0x8a8 [ 84.012054][ T5144] inet_sendmsg+0x154/0x284 [ 84.012767][ T5144] __sys_sendto+0x2e8/0x3d8 [ 84.013477][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 84.014281][ T5144] invoke_syscall+0x98/0x2b8 [ 84.015052][ T5144] el0_svc_common+0x138/0x258 [ 84.015748][ T5144] do_el0_svc+0x58/0x14c [ 84.016423][ T5144] el0_svc+0x78/0x1e0 [ 84.017030][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 84.017752][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 84.018565][ T5144] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.020214][ T5144] CPU: 0 PID: 5144 Comm: syz.0.52 Not tainted syzkaller #0 [ 84.021165][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.022628][ T5144] Call trace: [ 84.023110][ T5144] dump_backtrace+0x0/0x43c [ 84.023728][ T5144] show_stack+0x2c/0x3c [ 84.024364][ T5144] __dump_stack+0x30/0x40 [ 84.025014][ T5144] dump_stack_lvl+0xf8/0x160 [ 84.025693][ T5144] dump_stack+0x1c/0x5c [ 84.026309][ T5144] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.027057][ T5144] dccp_xmit_packet+0x298/0x448 [ 84.027744][ T5144] dccp_write_xmit+0x118/0x1d0 [ 84.028469][ T5144] dccp_sendmsg+0x538/0x8a8 [ 84.029155][ T5144] inet_sendmsg+0x154/0x284 [ 84.029799][ T5144] __sys_sendto+0x2e8/0x3d8 [ 84.030423][ T5144] __arm64_sys_sendto+0xd8/0xf8 [ 84.031175][ T5144] invoke_syscall+0x98/0x2b8 [ 84.031813][ T5144] el0_svc_common+0x138/0x258 [ 84.032484][ T5144] do_el0_svc+0x58/0x14c [ 84.033069][ T5144] el0_svc+0x78/0x1e0 [ 84.033642][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 84.034383][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 84.053202][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.055055][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.056082][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.057478][ T5146] Call trace: [ 84.057945][ T5146] dump_backtrace+0x0/0x43c [ 84.058593][ T5146] show_stack+0x2c/0x3c [ 84.059165][ T5146] __dump_stack+0x30/0x40 [ 84.059789][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.060446][ T5146] dump_stack+0x1c/0x5c [ 84.061050][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.061853][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.062645][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.063349][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.063964][ T5146] inet_sendmsg+0x154/0x284 [ 84.064552][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.065199][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.065877][ T5146] invoke_syscall+0x98/0x2b8 [ 84.066536][ T5146] el0_svc_common+0x138/0x258 [ 84.067244][ T5146] do_el0_svc+0x58/0x14c [ 84.067800][ T5146] el0_svc+0x78/0x1e0 [ 84.068386][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.069141][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.069950][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.071539][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.072542][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.073905][ T5146] Call trace: [ 84.074408][ T5146] dump_backtrace+0x0/0x43c [ 84.075013][ T5146] show_stack+0x2c/0x3c [ 84.075582][ T5146] __dump_stack+0x30/0x40 [ 84.076191][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.076851][ T5146] dump_stack+0x1c/0x5c [ 84.077499][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.078303][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.079060][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.079787][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.080444][ T5146] inet_sendmsg+0x154/0x284 [ 84.081143][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.081861][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.082623][ T5146] invoke_syscall+0x98/0x2b8 [ 84.083304][ T5146] el0_svc_common+0x138/0x258 [ 84.084018][ T5146] do_el0_svc+0x58/0x14c [ 84.084623][ T5146] el0_svc+0x78/0x1e0 [ 84.085228][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.085937][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.087419][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.089010][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.089930][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.091275][ T5146] Call trace: [ 84.091751][ T5146] dump_backtrace+0x0/0x43c [ 84.092359][ T5146] show_stack+0x2c/0x3c [ 84.092898][ T5146] __dump_stack+0x30/0x40 [ 84.093497][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.094154][ T5146] dump_stack+0x1c/0x5c [ 84.094797][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.095665][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.096287][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.096936][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.097592][ T5146] inet_sendmsg+0x154/0x284 [ 84.098264][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.098922][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.099651][ T5146] invoke_syscall+0x98/0x2b8 [ 84.100316][ T5146] el0_svc_common+0x138/0x258 [ 84.100954][ T5146] do_el0_svc+0x58/0x14c [ 84.101556][ T5146] el0_svc+0x78/0x1e0 [ 84.102150][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.102818][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.103736][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.105384][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.106344][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.107663][ T5146] Call trace: [ 84.108084][ T5146] dump_backtrace+0x0/0x43c [ 84.108729][ T5146] show_stack+0x2c/0x3c [ 84.109261][ T5146] __dump_stack+0x30/0x40 [ 84.109885][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.110559][ T5146] dump_stack+0x1c/0x5c [ 84.111169][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.112004][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.112690][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.113362][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.113989][ T5146] inet_sendmsg+0x154/0x284 [ 84.114647][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.115310][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.115989][ T5146] invoke_syscall+0x98/0x2b8 [ 84.116604][ T5146] el0_svc_common+0x138/0x258 [ 84.117283][ T5146] do_el0_svc+0x58/0x14c [ 84.117904][ T5146] el0_svc+0x78/0x1e0 [ 84.118459][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.119164][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.119963][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.121426][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.122383][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.123704][ T5146] Call trace: [ 84.124132][ T5146] dump_backtrace+0x0/0x43c [ 84.124757][ T5146] show_stack+0x2c/0x3c [ 84.125348][ T5146] __dump_stack+0x30/0x40 [ 84.125969][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.126643][ T5146] dump_stack+0x1c/0x5c [ 84.127257][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.128068][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.128773][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.129519][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.130149][ T5146] inet_sendmsg+0x154/0x284 [ 84.130768][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.131409][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.132148][ T5146] invoke_syscall+0x98/0x2b8 [ 84.132803][ T5146] el0_svc_common+0x138/0x258 [ 84.133540][ T5146] do_el0_svc+0x58/0x14c [ 84.134194][ T5146] el0_svc+0x78/0x1e0 [ 84.134920][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.135689][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.136620][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.138139][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.139129][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.140575][ T5146] Call trace: [ 84.141015][ T5146] dump_backtrace+0x0/0x43c [ 84.141641][ T5146] show_stack+0x2c/0x3c [ 84.142281][ T5146] __dump_stack+0x30/0x40 [ 84.142878][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.143520][ T5146] dump_stack+0x1c/0x5c [ 84.144134][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.144950][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.145756][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.146480][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.147144][ T5146] inet_sendmsg+0x154/0x284 [ 84.147781][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.148441][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.149111][ T5146] invoke_syscall+0x98/0x2b8 [ 84.149765][ T5146] el0_svc_common+0x138/0x258 [ 84.150392][ T5146] do_el0_svc+0x58/0x14c [ 84.150995][ T5146] el0_svc+0x78/0x1e0 [ 84.151539][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.152241][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.153155][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.154795][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.155859][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.157190][ T5146] Call trace: [ 84.157699][ T5146] dump_backtrace+0x0/0x43c [ 84.158318][ T5146] show_stack+0x2c/0x3c [ 84.158904][ T5146] __dump_stack+0x30/0x40 [ 84.159536][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.160181][ T5146] dump_stack+0x1c/0x5c [ 84.160785][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.161636][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.162415][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.163075][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.163762][ T5146] inet_sendmsg+0x154/0x284 [ 84.164396][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.165132][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.165853][ T5146] invoke_syscall+0x98/0x2b8 [ 84.166486][ T5146] el0_svc_common+0x138/0x258 [ 84.167184][ T5146] do_el0_svc+0x58/0x14c [ 84.167842][ T5146] el0_svc+0x78/0x1e0 [ 84.168450][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.169171][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.169962][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.171514][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.172475][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.173827][ T5146] Call trace: [ 84.174284][ T5146] dump_backtrace+0x0/0x43c [ 84.174974][ T5146] show_stack+0x2c/0x3c [ 84.175545][ T5146] __dump_stack+0x30/0x40 [ 84.176113][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.176797][ T5146] dump_stack+0x1c/0x5c [ 84.177410][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.178195][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.178856][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.179593][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.180242][ T5146] inet_sendmsg+0x154/0x284 [ 84.180912][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.181546][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.182247][ T5146] invoke_syscall+0x98/0x2b8 [ 84.182892][ T5146] el0_svc_common+0x138/0x258 [ 84.183548][ T5146] do_el0_svc+0x58/0x14c [ 84.184169][ T5146] el0_svc+0x78/0x1e0 [ 84.184753][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.185488][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.186376][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.187921][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.188936][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.190310][ T5146] Call trace: [ 84.190766][ T5146] dump_backtrace+0x0/0x43c [ 84.191445][ T5146] show_stack+0x2c/0x3c [ 84.192043][ T5146] __dump_stack+0x30/0x40 [ 84.192588][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.193214][ T5146] dump_stack+0x1c/0x5c [ 84.193821][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.194622][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.195311][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.196017][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.196710][ T5146] inet_sendmsg+0x154/0x284 [ 84.197312][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.197963][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.198647][ T5146] invoke_syscall+0x98/0x2b8 [ 84.199361][ T5146] el0_svc_common+0x138/0x258 [ 84.200023][ T5146] do_el0_svc+0x58/0x14c [ 84.200597][ T5146] el0_svc+0x78/0x1e0 [ 84.201160][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.201815][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.202603][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.204246][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.205263][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.206799][ T5146] Call trace: [ 84.207253][ T5146] dump_backtrace+0x0/0x43c [ 84.207880][ T5146] show_stack+0x2c/0x3c [ 84.208458][ T5146] __dump_stack+0x30/0x40 [ 84.209042][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.209662][ T5146] dump_stack+0x1c/0x5c [ 84.210184][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.210973][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.211680][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.212312][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.212925][ T5146] inet_sendmsg+0x154/0x284 [ 84.213550][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.214192][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.214879][ T5146] invoke_syscall+0x98/0x2b8 [ 84.215488][ T5146] el0_svc_common+0x138/0x258 [ 84.216148][ T5146] do_el0_svc+0x58/0x14c [ 84.216740][ T5146] el0_svc+0x78/0x1e0 [ 84.217355][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.218080][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.218848][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.220313][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.221281][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.222654][ T5146] Call trace: [ 84.223131][ T5146] dump_backtrace+0x0/0x43c [ 84.223777][ T5146] show_stack+0x2c/0x3c [ 84.224406][ T5146] __dump_stack+0x30/0x40 [ 84.225056][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.225691][ T5146] dump_stack+0x1c/0x5c [ 84.226314][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.227107][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.227823][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.228512][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.229167][ T5146] inet_sendmsg+0x154/0x284 [ 84.229832][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.230535][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.231256][ T5146] invoke_syscall+0x98/0x2b8 [ 84.231890][ T5146] el0_svc_common+0x138/0x258 [ 84.232590][ T5146] do_el0_svc+0x58/0x14c [ 84.233201][ T5146] el0_svc+0x78/0x1e0 [ 84.233782][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.234522][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.235413][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.237088][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.238161][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.239601][ T5146] Call trace: [ 84.240090][ T5146] dump_backtrace+0x0/0x43c [ 84.240781][ T5146] show_stack+0x2c/0x3c [ 84.241401][ T5146] __dump_stack+0x30/0x40 [ 84.242037][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.242693][ T5146] dump_stack+0x1c/0x5c [ 84.243231][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.244043][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.244726][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.245431][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.246058][ T5146] inet_sendmsg+0x154/0x284 [ 84.246712][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.247377][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.248184][ T5146] invoke_syscall+0x98/0x2b8 [ 84.248883][ T5146] el0_svc_common+0x138/0x258 [ 84.249537][ T5146] do_el0_svc+0x58/0x14c [ 84.250115][ T5146] el0_svc+0x78/0x1e0 [ 84.250678][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.251479][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.252338][ T5146] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.253953][ T5146] CPU: 0 PID: 5146 Comm: syz.0.53 Not tainted syzkaller #0 [ 84.255036][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.256502][ T5146] Call trace: [ 84.256999][ T5146] dump_backtrace+0x0/0x43c [ 84.257656][ T5146] show_stack+0x2c/0x3c [ 84.258243][ T5146] __dump_stack+0x30/0x40 [ 84.258852][ T5146] dump_stack_lvl+0xf8/0x160 [ 84.259533][ T5146] dump_stack+0x1c/0x5c [ 84.260107][ T5146] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.260887][ T5146] dccp_xmit_packet+0x298/0x448 [ 84.261628][ T5146] dccp_write_xmit+0x118/0x1d0 [ 84.262328][ T5146] dccp_sendmsg+0x538/0x8a8 [ 84.262969][ T5146] inet_sendmsg+0x154/0x284 [ 84.263784][ T5146] __sys_sendto+0x2e8/0x3d8 [ 84.264451][ T5146] __arm64_sys_sendto+0xd8/0xf8 [ 84.265159][ T5146] invoke_syscall+0x98/0x2b8 [ 84.265834][ T5146] el0_svc_common+0x138/0x258 [ 84.266526][ T5146] do_el0_svc+0x58/0x14c [ 84.267129][ T5146] el0_svc+0x78/0x1e0 [ 84.267692][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 84.268403][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 84.285195][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.286863][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.287955][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.289370][ T5148] Call trace: [ 84.289840][ T5148] dump_backtrace+0x0/0x43c [ 84.290440][ T5148] show_stack+0x2c/0x3c [ 84.291016][ T5148] __dump_stack+0x30/0x40 [ 84.291621][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.292294][ T5148] dump_stack+0x1c/0x5c [ 84.292881][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.293672][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.294369][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.295071][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.295837][ T5148] inet_sendmsg+0x154/0x284 [ 84.296490][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.297172][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.297905][ T5148] invoke_syscall+0x98/0x2b8 [ 84.298633][ T5148] el0_svc_common+0x138/0x258 [ 84.299313][ T5148] do_el0_svc+0x58/0x14c [ 84.299930][ T5148] el0_svc+0x78/0x1e0 [ 84.300516][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.301250][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.302070][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.303619][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.304572][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.305986][ T5148] Call trace: [ 84.306457][ T5148] dump_backtrace+0x0/0x43c [ 84.307133][ T5148] show_stack+0x2c/0x3c [ 84.307724][ T5148] __dump_stack+0x30/0x40 [ 84.308402][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.309069][ T5148] dump_stack+0x1c/0x5c [ 84.309693][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.310428][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.311211][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.311863][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.312597][ T5148] inet_sendmsg+0x154/0x284 [ 84.313328][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.314029][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.314759][ T5148] invoke_syscall+0x98/0x2b8 [ 84.315426][ T5148] el0_svc_common+0x138/0x258 [ 84.316119][ T5148] do_el0_svc+0x58/0x14c [ 84.316752][ T5148] el0_svc+0x78/0x1e0 [ 84.317383][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.318140][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.319284][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.320759][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.321825][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.323368][ T5148] Call trace: [ 84.323899][ T5148] dump_backtrace+0x0/0x43c [ 84.324546][ T5148] show_stack+0x2c/0x3c [ 84.325178][ T5148] __dump_stack+0x30/0x40 [ 84.325796][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.326482][ T5148] dump_stack+0x1c/0x5c [ 84.327050][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.327868][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.328597][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.329303][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.329922][ T5148] inet_sendmsg+0x154/0x284 [ 84.330587][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.331276][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.331977][ T5148] invoke_syscall+0x98/0x2b8 [ 84.332631][ T5148] el0_svc_common+0x138/0x258 [ 84.333368][ T5148] do_el0_svc+0x58/0x14c [ 84.334027][ T5148] el0_svc+0x78/0x1e0 [ 84.334614][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.335305][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.336123][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.337663][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.338571][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.340057][ T5148] Call trace: [ 84.340479][ T5148] dump_backtrace+0x0/0x43c [ 84.341124][ T5148] show_stack+0x2c/0x3c [ 84.341712][ T5148] __dump_stack+0x30/0x40 [ 84.342352][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.343025][ T5148] dump_stack+0x1c/0x5c [ 84.343592][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.344388][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.345085][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.345789][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.346478][ T5148] inet_sendmsg+0x154/0x284 [ 84.347166][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.347821][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.348524][ T5148] invoke_syscall+0x98/0x2b8 [ 84.349212][ T5148] el0_svc_common+0x138/0x258 [ 84.349831][ T5148] do_el0_svc+0x58/0x14c [ 84.350447][ T5148] el0_svc+0x78/0x1e0 [ 84.351073][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.351794][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.352759][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.354401][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.355386][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.356833][ T5148] Call trace: [ 84.357330][ T5148] dump_backtrace+0x0/0x43c [ 84.357972][ T5148] show_stack+0x2c/0x3c [ 84.358605][ T5148] __dump_stack+0x30/0x40 [ 84.359217][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.359913][ T5148] dump_stack+0x1c/0x5c [ 84.360517][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.361270][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.361923][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.362587][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.363217][ T5148] inet_sendmsg+0x154/0x284 [ 84.363825][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.364423][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.365181][ T5148] invoke_syscall+0x98/0x2b8 [ 84.365864][ T5148] el0_svc_common+0x138/0x258 [ 84.366555][ T5148] do_el0_svc+0x58/0x14c [ 84.367190][ T5148] el0_svc+0x78/0x1e0 [ 84.367741][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.368491][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.369306][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.370867][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.371913][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.373366][ T5148] Call trace: [ 84.373822][ T5148] dump_backtrace+0x0/0x43c [ 84.374440][ T5148] show_stack+0x2c/0x3c [ 84.375073][ T5148] __dump_stack+0x30/0x40 [ 84.375719][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.376360][ T5148] dump_stack+0x1c/0x5c [ 84.376977][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.377783][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.378487][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.379164][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.379758][ T5148] inet_sendmsg+0x154/0x284 [ 84.380421][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.381092][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.381810][ T5148] invoke_syscall+0x98/0x2b8 [ 84.382464][ T5148] el0_svc_common+0x138/0x258 [ 84.383171][ T5148] do_el0_svc+0x58/0x14c [ 84.383758][ T5148] el0_svc+0x78/0x1e0 [ 84.384341][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.385028][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.385893][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.387493][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.388559][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.389926][ T5148] Call trace: [ 84.390364][ T5148] dump_backtrace+0x0/0x43c [ 84.390961][ T5148] show_stack+0x2c/0x3c [ 84.391556][ T5148] __dump_stack+0x30/0x40 [ 84.392158][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.392794][ T5148] dump_stack+0x1c/0x5c [ 84.393415][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.394149][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.394880][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.395582][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.396228][ T5148] inet_sendmsg+0x154/0x284 [ 84.396847][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.397509][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.398177][ T5148] invoke_syscall+0x98/0x2b8 [ 84.398830][ T5148] el0_svc_common+0x138/0x258 [ 84.399464][ T5148] do_el0_svc+0x58/0x14c [ 84.400123][ T5148] el0_svc+0x78/0x1e0 [ 84.400709][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.401438][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.402235][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.403849][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.404862][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.406268][ T5148] Call trace: [ 84.406741][ T5148] dump_backtrace+0x0/0x43c [ 84.407353][ T5148] show_stack+0x2c/0x3c [ 84.407946][ T5148] __dump_stack+0x30/0x40 [ 84.408531][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.409147][ T5148] dump_stack+0x1c/0x5c [ 84.409714][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.410515][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.411240][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.411962][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.412611][ T5148] inet_sendmsg+0x154/0x284 [ 84.413217][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.413873][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.414506][ T5148] invoke_syscall+0x98/0x2b8 [ 84.415173][ T5148] el0_svc_common+0x138/0x258 [ 84.415816][ T5148] do_el0_svc+0x58/0x14c [ 84.416376][ T5148] el0_svc+0x78/0x1e0 [ 84.416910][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.417615][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.418387][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.419931][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.420891][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.422230][ T5148] Call trace: [ 84.422708][ T5148] dump_backtrace+0x0/0x43c [ 84.423329][ T5148] show_stack+0x2c/0x3c [ 84.423927][ T5148] __dump_stack+0x30/0x40 [ 84.424549][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.425180][ T5148] dump_stack+0x1c/0x5c [ 84.425761][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.426515][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.427199][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.427906][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.428537][ T5148] inet_sendmsg+0x154/0x284 [ 84.429181][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.429837][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.430498][ T5148] invoke_syscall+0x98/0x2b8 [ 84.431173][ T5148] el0_svc_common+0x138/0x258 [ 84.431785][ T5148] do_el0_svc+0x58/0x14c [ 84.432372][ T5148] el0_svc+0x78/0x1e0 [ 84.432928][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.433637][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.434461][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.435993][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.436994][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.438242][ T5148] Call trace: [ 84.438677][ T5148] dump_backtrace+0x0/0x43c [ 84.439289][ T5148] show_stack+0x2c/0x3c [ 84.439858][ T5148] __dump_stack+0x30/0x40 [ 84.440511][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.441119][ T5148] dump_stack+0x1c/0x5c [ 84.441713][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.442492][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.443206][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.443855][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.444489][ T5148] inet_sendmsg+0x154/0x284 [ 84.445208][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.445825][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.446556][ T5148] invoke_syscall+0x98/0x2b8 [ 84.447254][ T5148] el0_svc_common+0x138/0x258 [ 84.447952][ T5148] do_el0_svc+0x58/0x14c [ 84.448577][ T5148] el0_svc+0x78/0x1e0 [ 84.449227][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.449939][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.450762][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.452283][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.453183][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.454635][ T5148] Call trace: [ 84.455120][ T5148] dump_backtrace+0x0/0x43c [ 84.455803][ T5148] show_stack+0x2c/0x3c [ 84.456413][ T5148] __dump_stack+0x30/0x40 [ 84.457005][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.457635][ T5148] dump_stack+0x1c/0x5c [ 84.458195][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.458886][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.459548][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.460208][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.460841][ T5148] inet_sendmsg+0x154/0x284 [ 84.461501][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.462138][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.462881][ T5148] invoke_syscall+0x98/0x2b8 [ 84.463530][ T5148] el0_svc_common+0x138/0x258 [ 84.464164][ T5148] do_el0_svc+0x58/0x14c [ 84.464749][ T5148] el0_svc+0x78/0x1e0 [ 84.465345][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.466098][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.466919][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.468450][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.469437][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.470844][ T5148] Call trace: [ 84.471293][ T5148] dump_backtrace+0x0/0x43c [ 84.471928][ T5148] show_stack+0x2c/0x3c [ 84.472530][ T5148] __dump_stack+0x30/0x40 [ 84.473097][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.473740][ T5148] dump_stack+0x1c/0x5c [ 84.474301][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.475062][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.475750][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.476449][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.477077][ T5148] inet_sendmsg+0x154/0x284 [ 84.477751][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.478389][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.479076][ T5148] invoke_syscall+0x98/0x2b8 [ 84.479742][ T5148] el0_svc_common+0x138/0x258 [ 84.480366][ T5148] do_el0_svc+0x58/0x14c [ 84.480990][ T5148] el0_svc+0x78/0x1e0 [ 84.481557][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.482222][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.483129][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.484885][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.485926][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.487459][ T5148] Call trace: [ 84.487939][ T5148] dump_backtrace+0x0/0x43c [ 84.488605][ T5148] show_stack+0x2c/0x3c [ 84.489203][ T5148] __dump_stack+0x30/0x40 [ 84.489808][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.490466][ T5148] dump_stack+0x1c/0x5c [ 84.491058][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.491785][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.492411][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.493081][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.493744][ T5148] inet_sendmsg+0x154/0x284 [ 84.494429][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.495081][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.495764][ T5148] invoke_syscall+0x98/0x2b8 [ 84.496417][ T5148] el0_svc_common+0x138/0x258 [ 84.497106][ T5148] do_el0_svc+0x58/0x14c [ 84.497703][ T5148] el0_svc+0x78/0x1e0 [ 84.498290][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.499062][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.499915][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.501679][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.502805][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.504314][ T5148] Call trace: [ 84.504780][ T5148] dump_backtrace+0x0/0x43c [ 84.505403][ T5148] show_stack+0x2c/0x3c [ 84.506026][ T5148] __dump_stack+0x30/0x40 [ 84.506615][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.507253][ T5148] dump_stack+0x1c/0x5c [ 84.507828][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.508603][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.509307][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.509983][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.510583][ T5148] inet_sendmsg+0x154/0x284 [ 84.511227][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.511847][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.512510][ T5148] invoke_syscall+0x98/0x2b8 [ 84.513144][ T5148] el0_svc_common+0x138/0x258 [ 84.513777][ T5148] do_el0_svc+0x58/0x14c [ 84.514393][ T5148] el0_svc+0x78/0x1e0 [ 84.514987][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.515685][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.516519][ T5148] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.517992][ T5148] CPU: 0 PID: 5148 Comm: syz.0.54 Not tainted syzkaller #0 [ 84.518975][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.520338][ T5148] Call trace: [ 84.520755][ T5148] dump_backtrace+0x0/0x43c [ 84.521385][ T5148] show_stack+0x2c/0x3c [ 84.521972][ T5148] __dump_stack+0x30/0x40 [ 84.522591][ T5148] dump_stack_lvl+0xf8/0x160 [ 84.523216][ T5148] dump_stack+0x1c/0x5c [ 84.523791][ T5148] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.524574][ T5148] dccp_xmit_packet+0x298/0x448 [ 84.525325][ T5148] dccp_write_xmit+0x118/0x1d0 [ 84.525990][ T5148] dccp_sendmsg+0x538/0x8a8 [ 84.526618][ T5148] inet_sendmsg+0x154/0x284 [ 84.527307][ T5148] __sys_sendto+0x2e8/0x3d8 [ 84.527940][ T5148] __arm64_sys_sendto+0xd8/0xf8 [ 84.528633][ T5148] invoke_syscall+0x98/0x2b8 [ 84.529257][ T5148] el0_svc_common+0x138/0x258 [ 84.529933][ T5148] do_el0_svc+0x58/0x14c [ 84.530534][ T5148] el0_svc+0x78/0x1e0 [ 84.531057][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 84.531713][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 84.548200][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.550070][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.551109][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.552665][ T5150] Call trace: [ 84.553117][ T5150] dump_backtrace+0x0/0x43c [ 84.553747][ T5150] show_stack+0x2c/0x3c [ 84.554373][ T5150] __dump_stack+0x30/0x40 [ 84.555045][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.555757][ T5150] dump_stack+0x1c/0x5c [ 84.556384][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.557172][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.557899][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.558619][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.559315][ T5150] inet_sendmsg+0x154/0x284 [ 84.559974][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.560628][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.561331][ T5150] invoke_syscall+0x98/0x2b8 [ 84.561969][ T5150] el0_svc_common+0x138/0x258 [ 84.562613][ T5150] do_el0_svc+0x58/0x14c [ 84.563192][ T5150] el0_svc+0x78/0x1e0 [ 84.563737][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.564429][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.565351][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.566824][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.567919][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.569277][ T5150] Call trace: [ 84.569714][ T5150] dump_backtrace+0x0/0x43c [ 84.570402][ T5150] show_stack+0x2c/0x3c [ 84.570956][ T5150] __dump_stack+0x30/0x40 [ 84.571557][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.572200][ T5150] dump_stack+0x1c/0x5c [ 84.572767][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.573505][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.574198][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.574886][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.575478][ T5150] inet_sendmsg+0x154/0x284 [ 84.576159][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.576810][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.577497][ T5150] invoke_syscall+0x98/0x2b8 [ 84.578151][ T5150] el0_svc_common+0x138/0x258 [ 84.578810][ T5150] do_el0_svc+0x58/0x14c [ 84.579396][ T5150] el0_svc+0x78/0x1e0 [ 84.579943][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.580656][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.581527][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.583040][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.584104][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.585651][ T5150] Call trace: [ 84.586136][ T5150] dump_backtrace+0x0/0x43c [ 84.586843][ T5150] show_stack+0x2c/0x3c [ 84.587401][ T5150] __dump_stack+0x30/0x40 [ 84.588025][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.588763][ T5150] dump_stack+0x1c/0x5c [ 84.589387][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.590250][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.591020][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.591735][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.592407][ T5150] inet_sendmsg+0x154/0x284 [ 84.593112][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.593842][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.594567][ T5150] invoke_syscall+0x98/0x2b8 [ 84.595228][ T5150] el0_svc_common+0x138/0x258 [ 84.595933][ T5150] do_el0_svc+0x58/0x14c [ 84.596515][ T5150] el0_svc+0x78/0x1e0 [ 84.597103][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.597836][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.599056][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.600702][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.601751][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.603191][ T5150] Call trace: [ 84.603679][ T5150] dump_backtrace+0x0/0x43c [ 84.604353][ T5150] show_stack+0x2c/0x3c [ 84.604946][ T5150] __dump_stack+0x30/0x40 [ 84.605567][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.606232][ T5150] dump_stack+0x1c/0x5c [ 84.606793][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.607536][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.608303][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.608980][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.609639][ T5150] inet_sendmsg+0x154/0x284 [ 84.610303][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.610997][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.611652][ T5150] invoke_syscall+0x98/0x2b8 [ 84.612315][ T5150] el0_svc_common+0x138/0x258 [ 84.612950][ T5150] do_el0_svc+0x58/0x14c [ 84.613545][ T5150] el0_svc+0x78/0x1e0 [ 84.614143][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.614863][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.615690][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.617218][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.618347][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.619852][ T5150] Call trace: [ 84.620293][ T5150] dump_backtrace+0x0/0x43c [ 84.620970][ T5150] show_stack+0x2c/0x3c [ 84.621537][ T5150] __dump_stack+0x30/0x40 [ 84.622171][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.622878][ T5150] dump_stack+0x1c/0x5c [ 84.623493][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.624371][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.625122][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.625858][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.626563][ T5150] inet_sendmsg+0x154/0x284 [ 84.627251][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.627868][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.628574][ T5150] invoke_syscall+0x98/0x2b8 [ 84.629294][ T5150] el0_svc_common+0x138/0x258 [ 84.630034][ T5150] do_el0_svc+0x58/0x14c [ 84.630731][ T5150] el0_svc+0x78/0x1e0 [ 84.631324][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.632083][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.632916][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.634582][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.635699][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.637069][ T5150] Call trace: [ 84.637519][ T5150] dump_backtrace+0x0/0x43c [ 84.638101][ T5150] show_stack+0x2c/0x3c [ 84.638674][ T5150] __dump_stack+0x30/0x40 [ 84.639245][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.639906][ T5150] dump_stack+0x1c/0x5c [ 84.640483][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.641323][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.642036][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.642682][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.643373][ T5150] inet_sendmsg+0x154/0x284 [ 84.644136][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.644850][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.645581][ T5150] invoke_syscall+0x98/0x2b8 [ 84.646292][ T5150] el0_svc_common+0x138/0x258 [ 84.646970][ T5150] do_el0_svc+0x58/0x14c [ 84.647589][ T5150] el0_svc+0x78/0x1e0 [ 84.648124][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.648822][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.649601][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.651174][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.652190][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.653595][ T5150] Call trace: [ 84.654023][ T5150] dump_backtrace+0x0/0x43c [ 84.654670][ T5150] show_stack+0x2c/0x3c [ 84.655275][ T5150] __dump_stack+0x30/0x40 [ 84.655900][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.656583][ T5150] dump_stack+0x1c/0x5c [ 84.657158][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.658017][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.658774][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.659444][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.660123][ T5150] inet_sendmsg+0x154/0x284 [ 84.660778][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.661473][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.662157][ T5150] invoke_syscall+0x98/0x2b8 [ 84.662854][ T5150] el0_svc_common+0x138/0x258 [ 84.663521][ T5150] do_el0_svc+0x58/0x14c [ 84.664148][ T5150] el0_svc+0x78/0x1e0 [ 84.664733][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.665467][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.666323][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.667922][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.668872][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.670174][ T5150] Call trace: [ 84.670652][ T5150] dump_backtrace+0x0/0x43c [ 84.671294][ T5150] show_stack+0x2c/0x3c [ 84.671861][ T5150] __dump_stack+0x30/0x40 [ 84.672441][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.673097][ T5150] dump_stack+0x1c/0x5c [ 84.673684][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.674482][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.675130][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.675794][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.676455][ T5150] inet_sendmsg+0x154/0x284 [ 84.677086][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.677704][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.678422][ T5150] invoke_syscall+0x98/0x2b8 [ 84.679072][ T5150] el0_svc_common+0x138/0x258 [ 84.679744][ T5150] do_el0_svc+0x58/0x14c [ 84.680337][ T5150] el0_svc+0x78/0x1e0 [ 84.680930][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.681614][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.682415][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.683933][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.685011][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.686538][ T5150] Call trace: [ 84.686992][ T5150] dump_backtrace+0x0/0x43c [ 84.687603][ T5150] show_stack+0x2c/0x3c [ 84.688234][ T5150] __dump_stack+0x30/0x40 [ 84.688821][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.689423][ T5150] dump_stack+0x1c/0x5c [ 84.689961][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.690697][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.691375][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.692074][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.692699][ T5150] inet_sendmsg+0x154/0x284 [ 84.693322][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.693969][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.694728][ T5150] invoke_syscall+0x98/0x2b8 [ 84.695366][ T5150] el0_svc_common+0x138/0x258 [ 84.696091][ T5150] do_el0_svc+0x58/0x14c [ 84.696711][ T5150] el0_svc+0x78/0x1e0 [ 84.697312][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.698052][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.698883][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.700540][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.701554][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.702917][ T5150] Call trace: [ 84.703343][ T5150] dump_backtrace+0x0/0x43c [ 84.704031][ T5150] show_stack+0x2c/0x3c [ 84.704610][ T5150] __dump_stack+0x30/0x40 [ 84.705261][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.705898][ T5150] dump_stack+0x1c/0x5c [ 84.706544][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.707308][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.707954][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.708613][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.709259][ T5150] inet_sendmsg+0x154/0x284 [ 84.709879][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.710551][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.711225][ T5150] invoke_syscall+0x98/0x2b8 [ 84.711909][ T5150] el0_svc_common+0x138/0x258 [ 84.712625][ T5150] do_el0_svc+0x58/0x14c [ 84.713217][ T5150] el0_svc+0x78/0x1e0 [ 84.713793][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.714495][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.715250][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.716749][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.717746][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.719339][ T5150] Call trace: [ 84.719818][ T5150] dump_backtrace+0x0/0x43c [ 84.720475][ T5150] show_stack+0x2c/0x3c [ 84.721045][ T5150] __dump_stack+0x30/0x40 [ 84.721644][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.722295][ T5150] dump_stack+0x1c/0x5c [ 84.722868][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.723597][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.724272][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.724930][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.725603][ T5150] inet_sendmsg+0x154/0x284 [ 84.726254][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.726863][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.727514][ T5150] invoke_syscall+0x98/0x2b8 [ 84.728127][ T5150] el0_svc_common+0x138/0x258 [ 84.728787][ T5150] do_el0_svc+0x58/0x14c [ 84.729374][ T5150] el0_svc+0x78/0x1e0 [ 84.729965][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.730663][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.731662][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.733193][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.734347][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.735879][ T5150] Call trace: [ 84.736358][ T5150] dump_backtrace+0x0/0x43c [ 84.737026][ T5150] show_stack+0x2c/0x3c [ 84.737656][ T5150] __dump_stack+0x30/0x40 [ 84.738267][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.738963][ T5150] dump_stack+0x1c/0x5c [ 84.739559][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.740363][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.741080][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.741790][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.742465][ T5150] inet_sendmsg+0x154/0x284 [ 84.743128][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.743791][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.744635][ T5150] invoke_syscall+0x98/0x2b8 [ 84.745388][ T5150] el0_svc_common+0x138/0x258 [ 84.746100][ T5150] do_el0_svc+0x58/0x14c [ 84.746714][ T5150] el0_svc+0x78/0x1e0 [ 84.747286][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.747997][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.748840][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.750274][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.751218][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.752675][ T5150] Call trace: [ 84.753129][ T5150] dump_backtrace+0x0/0x43c [ 84.753725][ T5150] show_stack+0x2c/0x3c [ 84.754255][ T5150] __dump_stack+0x30/0x40 [ 84.754874][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.755521][ T5150] dump_stack+0x1c/0x5c [ 84.756105][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.756911][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.757619][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.758325][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.759001][ T5150] inet_sendmsg+0x154/0x284 [ 84.759648][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.760387][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.761055][ T5150] invoke_syscall+0x98/0x2b8 [ 84.761734][ T5150] el0_svc_common+0x138/0x258 [ 84.762415][ T5150] do_el0_svc+0x58/0x14c [ 84.762982][ T5150] el0_svc+0x78/0x1e0 [ 84.763500][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.764195][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.765003][ T5150] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.766482][ T5150] CPU: 0 PID: 5150 Comm: syz.0.55 Not tainted syzkaller #0 [ 84.767476][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.768868][ T5150] Call trace: [ 84.769334][ T5150] dump_backtrace+0x0/0x43c [ 84.769952][ T5150] show_stack+0x2c/0x3c [ 84.770492][ T5150] __dump_stack+0x30/0x40 [ 84.771124][ T5150] dump_stack_lvl+0xf8/0x160 [ 84.771776][ T5150] dump_stack+0x1c/0x5c [ 84.772306][ T5150] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.773053][ T5150] dccp_xmit_packet+0x298/0x448 [ 84.773778][ T5150] dccp_write_xmit+0x118/0x1d0 [ 84.774380][ T5150] dccp_sendmsg+0x538/0x8a8 [ 84.775038][ T5150] inet_sendmsg+0x154/0x284 [ 84.775640][ T5150] __sys_sendto+0x2e8/0x3d8 [ 84.776273][ T5150] __arm64_sys_sendto+0xd8/0xf8 [ 84.776935][ T5150] invoke_syscall+0x98/0x2b8 [ 84.777585][ T5150] el0_svc_common+0x138/0x258 [ 84.778255][ T5150] do_el0_svc+0x58/0x14c [ 84.778896][ T5150] el0_svc+0x78/0x1e0 [ 84.779520][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 84.780238][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 84.802412][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.804087][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.805175][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.806776][ T5152] Call trace: [ 84.807323][ T5152] dump_backtrace+0x0/0x43c [ 84.808051][ T5152] show_stack+0x2c/0x3c [ 84.808710][ T5152] __dump_stack+0x30/0x40 [ 84.809401][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.810103][ T5152] dump_stack+0x1c/0x5c [ 84.810743][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.811568][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.812302][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.812999][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.813594][ T5152] inet_sendmsg+0x154/0x284 [ 84.814200][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.814868][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.815661][ T5152] invoke_syscall+0x98/0x2b8 [ 84.816386][ T5152] el0_svc_common+0x138/0x258 [ 84.817066][ T5152] do_el0_svc+0x58/0x14c [ 84.817716][ T5152] el0_svc+0x78/0x1e0 [ 84.818289][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.819020][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.821321][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.822966][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.824066][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.825556][ T5152] Call trace: [ 84.826024][ T5152] dump_backtrace+0x0/0x43c [ 84.826634][ T5152] show_stack+0x2c/0x3c [ 84.827250][ T5152] __dump_stack+0x30/0x40 [ 84.827910][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.828590][ T5152] dump_stack+0x1c/0x5c [ 84.829169][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.829889][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.830596][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.831252][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.831904][ T5152] inet_sendmsg+0x154/0x284 [ 84.832563][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.833211][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.833881][ T5152] invoke_syscall+0x98/0x2b8 [ 84.834526][ T5152] el0_svc_common+0x138/0x258 [ 84.835232][ T5152] do_el0_svc+0x58/0x14c [ 84.835844][ T5152] el0_svc+0x78/0x1e0 [ 84.836380][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.837079][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.838839][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.840352][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.841341][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.842691][ T5152] Call trace: [ 84.843131][ T5152] dump_backtrace+0x0/0x43c [ 84.843751][ T5152] show_stack+0x2c/0x3c [ 84.844304][ T5152] __dump_stack+0x30/0x40 [ 84.844940][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.845613][ T5152] dump_stack+0x1c/0x5c [ 84.846205][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.846981][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.847676][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.848317][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.848949][ T5152] inet_sendmsg+0x154/0x284 [ 84.849597][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.850228][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.850978][ T5152] invoke_syscall+0x98/0x2b8 [ 84.851624][ T5152] el0_svc_common+0x138/0x258 [ 84.852304][ T5152] do_el0_svc+0x58/0x14c [ 84.852886][ T5152] el0_svc+0x78/0x1e0 [ 84.853411][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.854120][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.855236][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.856751][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.857762][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.859077][ T5152] Call trace: [ 84.859553][ T5152] dump_backtrace+0x0/0x43c [ 84.860205][ T5152] show_stack+0x2c/0x3c [ 84.860754][ T5152] __dump_stack+0x30/0x40 [ 84.861376][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.861966][ T5152] dump_stack+0x1c/0x5c [ 84.862564][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.863325][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.863965][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.864615][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.865230][ T5152] inet_sendmsg+0x154/0x284 [ 84.865910][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.866542][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.867244][ T5152] invoke_syscall+0x98/0x2b8 [ 84.867896][ T5152] el0_svc_common+0x138/0x258 [ 84.868647][ T5152] do_el0_svc+0x58/0x14c [ 84.869346][ T5152] el0_svc+0x78/0x1e0 [ 84.869992][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.870699][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.871581][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.873097][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.874074][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.875544][ T5152] Call trace: [ 84.875999][ T5152] dump_backtrace+0x0/0x43c [ 84.876635][ T5152] show_stack+0x2c/0x3c [ 84.877329][ T5152] __dump_stack+0x30/0x40 [ 84.877992][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.878645][ T5152] dump_stack+0x1c/0x5c [ 84.879238][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.879977][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.880673][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.881310][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.881893][ T5152] inet_sendmsg+0x154/0x284 [ 84.882491][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.883128][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.883786][ T5152] invoke_syscall+0x98/0x2b8 [ 84.884444][ T5152] el0_svc_common+0x138/0x258 [ 84.885124][ T5152] do_el0_svc+0x58/0x14c [ 84.885718][ T5152] el0_svc+0x78/0x1e0 [ 84.886287][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.887015][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.887803][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.889273][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.890264][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.891734][ T5152] Call trace: [ 84.892180][ T5152] dump_backtrace+0x0/0x43c [ 84.892815][ T5152] show_stack+0x2c/0x3c [ 84.893429][ T5152] __dump_stack+0x30/0x40 [ 84.894043][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.894722][ T5152] dump_stack+0x1c/0x5c [ 84.895314][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.896064][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.896752][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.897391][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.898015][ T5152] inet_sendmsg+0x154/0x284 [ 84.898652][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.899319][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.899973][ T5152] invoke_syscall+0x98/0x2b8 [ 84.900626][ T5152] el0_svc_common+0x138/0x258 [ 84.901276][ T5152] do_el0_svc+0x58/0x14c [ 84.901878][ T5152] el0_svc+0x78/0x1e0 [ 84.902423][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.903128][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.904017][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.905708][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.906723][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.908093][ T5152] Call trace: [ 84.908534][ T5152] dump_backtrace+0x0/0x43c [ 84.909184][ T5152] show_stack+0x2c/0x3c [ 84.909749][ T5152] __dump_stack+0x30/0x40 [ 84.910374][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.911031][ T5152] dump_stack+0x1c/0x5c [ 84.911569][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.912333][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.913068][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.913722][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.914342][ T5152] inet_sendmsg+0x154/0x284 [ 84.914960][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.915604][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.916289][ T5152] invoke_syscall+0x98/0x2b8 [ 84.916907][ T5152] el0_svc_common+0x138/0x258 [ 84.917641][ T5152] do_el0_svc+0x58/0x14c [ 84.918235][ T5152] el0_svc+0x78/0x1e0 [ 84.918741][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.919477][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.920506][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.922174][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.923214][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.924589][ T5152] Call trace: [ 84.925072][ T5152] dump_backtrace+0x0/0x43c [ 84.925704][ T5152] show_stack+0x2c/0x3c [ 84.926262][ T5152] __dump_stack+0x30/0x40 [ 84.926834][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.927493][ T5152] dump_stack+0x1c/0x5c [ 84.928115][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.928882][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.929547][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.930180][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.930769][ T5152] inet_sendmsg+0x154/0x284 [ 84.931427][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.932033][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.932735][ T5152] invoke_syscall+0x98/0x2b8 [ 84.933458][ T5152] el0_svc_common+0x138/0x258 [ 84.934149][ T5152] do_el0_svc+0x58/0x14c [ 84.934776][ T5152] el0_svc+0x78/0x1e0 [ 84.935346][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.936091][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.937929][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.939590][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.940556][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.941952][ T5152] Call trace: [ 84.942417][ T5152] dump_backtrace+0x0/0x43c [ 84.943063][ T5152] show_stack+0x2c/0x3c [ 84.943638][ T5152] __dump_stack+0x30/0x40 [ 84.944260][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.944927][ T5152] dump_stack+0x1c/0x5c [ 84.945537][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.946339][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.947023][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.947700][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.948334][ T5152] inet_sendmsg+0x154/0x284 [ 84.948979][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.949641][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.950329][ T5152] invoke_syscall+0x98/0x2b8 [ 84.951016][ T5152] el0_svc_common+0x138/0x258 [ 84.951669][ T5152] do_el0_svc+0x58/0x14c [ 84.952263][ T5152] el0_svc+0x78/0x1e0 [ 84.952790][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.953491][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.954337][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.955807][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.956756][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.958164][ T5152] Call trace: [ 84.958589][ T5152] dump_backtrace+0x0/0x43c [ 84.959172][ T5152] show_stack+0x2c/0x3c [ 84.959791][ T5152] __dump_stack+0x30/0x40 [ 84.960418][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.961199][ T5152] dump_stack+0x1c/0x5c [ 84.961842][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.962731][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.963453][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.964198][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.964849][ T5152] inet_sendmsg+0x154/0x284 [ 84.965562][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.966208][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.966924][ T5152] invoke_syscall+0x98/0x2b8 [ 84.967589][ T5152] el0_svc_common+0x138/0x258 [ 84.968218][ T5152] do_el0_svc+0x58/0x14c [ 84.968847][ T5152] el0_svc+0x78/0x1e0 [ 84.969388][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.970112][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.970834][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.972426][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.973430][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.974868][ T5152] Call trace: [ 84.975329][ T5152] dump_backtrace+0x0/0x43c [ 84.975954][ T5152] show_stack+0x2c/0x3c [ 84.976553][ T5152] __dump_stack+0x30/0x40 [ 84.977171][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.977853][ T5152] dump_stack+0x1c/0x5c [ 84.978447][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.979200][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.979880][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.980603][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.981262][ T5152] inet_sendmsg+0x154/0x284 [ 84.981909][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.982618][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.983278][ T5152] invoke_syscall+0x98/0x2b8 [ 84.983950][ T5152] el0_svc_common+0x138/0x258 [ 84.984695][ T5152] do_el0_svc+0x58/0x14c [ 84.985296][ T5152] el0_svc+0x78/0x1e0 [ 84.985883][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 84.986602][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 84.987440][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 84.988890][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 84.989805][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.991123][ T5152] Call trace: [ 84.991539][ T5152] dump_backtrace+0x0/0x43c [ 84.992137][ T5152] show_stack+0x2c/0x3c [ 84.992712][ T5152] __dump_stack+0x30/0x40 [ 84.993280][ T5152] dump_stack_lvl+0xf8/0x160 [ 84.993986][ T5152] dump_stack+0x1c/0x5c [ 84.994608][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 84.995407][ T5152] dccp_xmit_packet+0x298/0x448 [ 84.996119][ T5152] dccp_write_xmit+0x118/0x1d0 [ 84.996768][ T5152] dccp_sendmsg+0x538/0x8a8 [ 84.997385][ T5152] inet_sendmsg+0x154/0x284 [ 84.998043][ T5152] __sys_sendto+0x2e8/0x3d8 [ 84.998734][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 84.999507][ T5152] invoke_syscall+0x98/0x2b8 [ 85.000181][ T5152] el0_svc_common+0x138/0x258 [ 85.000873][ T5152] do_el0_svc+0x58/0x14c [ 85.001523][ T5152] el0_svc+0x78/0x1e0 [ 85.002083][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 85.002831][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 85.003684][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.005223][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 85.006144][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.007439][ T5152] Call trace: [ 85.007910][ T5152] dump_backtrace+0x0/0x43c [ 85.008503][ T5152] show_stack+0x2c/0x3c [ 85.009054][ T5152] __dump_stack+0x30/0x40 [ 85.009642][ T5152] dump_stack_lvl+0xf8/0x160 [ 85.010323][ T5152] dump_stack+0x1c/0x5c [ 85.010906][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.011656][ T5152] dccp_xmit_packet+0x298/0x448 [ 85.012356][ T5152] dccp_write_xmit+0x118/0x1d0 [ 85.013016][ T5152] dccp_sendmsg+0x538/0x8a8 [ 85.013653][ T5152] inet_sendmsg+0x154/0x284 [ 85.014336][ T5152] __sys_sendto+0x2e8/0x3d8 [ 85.015011][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 85.015737][ T5152] invoke_syscall+0x98/0x2b8 [ 85.016384][ T5152] el0_svc_common+0x138/0x258 [ 85.017040][ T5152] do_el0_svc+0x58/0x14c [ 85.017656][ T5152] el0_svc+0x78/0x1e0 [ 85.018198][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 85.018866][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 85.019815][ T5152] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.021517][ T5152] CPU: 1 PID: 5152 Comm: syz.0.56 Not tainted syzkaller #0 [ 85.022506][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.023882][ T5152] Call trace: [ 85.024365][ T5152] dump_backtrace+0x0/0x43c [ 85.025007][ T5152] show_stack+0x2c/0x3c [ 85.025606][ T5152] __dump_stack+0x30/0x40 [ 85.026216][ T5152] dump_stack_lvl+0xf8/0x160 [ 85.026913][ T5152] dump_stack+0x1c/0x5c [ 85.027513][ T5152] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.028317][ T5152] dccp_xmit_packet+0x298/0x448 [ 85.029001][ T5152] dccp_write_xmit+0x118/0x1d0 [ 85.029681][ T5152] dccp_sendmsg+0x538/0x8a8 [ 85.030351][ T5152] inet_sendmsg+0x154/0x284 [ 85.030996][ T5152] __sys_sendto+0x2e8/0x3d8 [ 85.031605][ T5152] __arm64_sys_sendto+0xd8/0xf8 [ 85.032294][ T5152] invoke_syscall+0x98/0x2b8 [ 85.032914][ T5152] el0_svc_common+0x138/0x258 [ 85.033554][ T5152] do_el0_svc+0x58/0x14c [ 85.034253][ T5152] el0_svc+0x78/0x1e0 [ 85.034843][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 85.035625][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 85.054172][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.055873][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.056995][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.058528][ T5154] Call trace: [ 85.058965][ T5154] dump_backtrace+0x0/0x43c [ 85.059631][ T5154] show_stack+0x2c/0x3c [ 85.060249][ T5154] __dump_stack+0x30/0x40 [ 85.060826][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.061436][ T5154] dump_stack+0x1c/0x5c [ 85.062016][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.062742][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.063460][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.064107][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.064770][ T5154] inet_sendmsg+0x154/0x284 [ 85.065415][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.066047][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.066792][ T5154] invoke_syscall+0x98/0x2b8 [ 85.067414][ T5154] el0_svc_common+0x138/0x258 [ 85.068062][ T5154] do_el0_svc+0x58/0x14c [ 85.068678][ T5154] el0_svc+0x78/0x1e0 [ 85.069216][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.069956][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.071486][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.073304][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.074460][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.076009][ T5154] Call trace: [ 85.076506][ T5154] dump_backtrace+0x0/0x43c [ 85.077234][ T5154] show_stack+0x2c/0x3c [ 85.077860][ T5154] __dump_stack+0x30/0x40 [ 85.078491][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.079153][ T5154] dump_stack+0x1c/0x5c [ 85.079768][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.080550][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.081283][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.081947][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.082567][ T5154] inet_sendmsg+0x154/0x284 [ 85.083187][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.083835][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.084541][ T5154] invoke_syscall+0x98/0x2b8 [ 85.085154][ T5154] el0_svc_common+0x138/0x258 [ 85.085808][ T5154] do_el0_svc+0x58/0x14c [ 85.086429][ T5154] el0_svc+0x78/0x1e0 [ 85.086987][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.087718][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.089471][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.091243][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.092314][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.093803][ T5154] Call trace: [ 85.094296][ T5154] dump_backtrace+0x0/0x43c [ 85.094953][ T5154] show_stack+0x2c/0x3c [ 85.095557][ T5154] __dump_stack+0x30/0x40 [ 85.096158][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.096800][ T5154] dump_stack+0x1c/0x5c [ 85.097423][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.098240][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.098946][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.099615][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.100211][ T5154] inet_sendmsg+0x154/0x284 [ 85.100906][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.101528][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.102225][ T5154] invoke_syscall+0x98/0x2b8 [ 85.102838][ T5154] el0_svc_common+0x138/0x258 [ 85.103477][ T5154] do_el0_svc+0x58/0x14c [ 85.104090][ T5154] el0_svc+0x78/0x1e0 [ 85.104634][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.105318][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.106672][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.108447][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.109531][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.110983][ T5154] Call trace: [ 85.111460][ T5154] dump_backtrace+0x0/0x43c [ 85.112157][ T5154] show_stack+0x2c/0x3c [ 85.112747][ T5154] __dump_stack+0x30/0x40 [ 85.113349][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.114020][ T5154] dump_stack+0x1c/0x5c [ 85.114575][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.115374][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.116077][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.116764][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.117389][ T5154] inet_sendmsg+0x154/0x284 [ 85.117999][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.118663][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.119376][ T5154] invoke_syscall+0x98/0x2b8 [ 85.120026][ T5154] el0_svc_common+0x138/0x258 [ 85.120732][ T5154] do_el0_svc+0x58/0x14c [ 85.121321][ T5154] el0_svc+0x78/0x1e0 [ 85.121894][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.122659][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.124082][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.125887][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.126874][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.128214][ T5154] Call trace: [ 85.128675][ T5154] dump_backtrace+0x0/0x43c [ 85.129355][ T5154] show_stack+0x2c/0x3c [ 85.129978][ T5154] __dump_stack+0x30/0x40 [ 85.130593][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.131251][ T5154] dump_stack+0x1c/0x5c [ 85.131859][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.132627][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.133296][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.133962][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.134585][ T5154] inet_sendmsg+0x154/0x284 [ 85.135228][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.135836][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.136521][ T5154] invoke_syscall+0x98/0x2b8 [ 85.137181][ T5154] el0_svc_common+0x138/0x258 [ 85.137893][ T5154] do_el0_svc+0x58/0x14c [ 85.138506][ T5154] el0_svc+0x78/0x1e0 [ 85.139048][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.139775][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.141029][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.142711][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.143756][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.145236][ T5154] Call trace: [ 85.145735][ T5154] dump_backtrace+0x0/0x43c [ 85.146463][ T5154] show_stack+0x2c/0x3c [ 85.147101][ T5154] __dump_stack+0x30/0x40 [ 85.147782][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.148448][ T5154] dump_stack+0x1c/0x5c [ 85.149031][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.149840][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.150537][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.151179][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.151765][ T5154] inet_sendmsg+0x154/0x284 [ 85.152341][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.152975][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.153656][ T5154] invoke_syscall+0x98/0x2b8 [ 85.154276][ T5154] el0_svc_common+0x138/0x258 [ 85.155087][ T5154] do_el0_svc+0x58/0x14c [ 85.155811][ T5154] el0_svc+0x78/0x1e0 [ 85.156500][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.157253][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.158502][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.160150][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.161251][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.162815][ T5154] Call trace: [ 85.163274][ T5154] dump_backtrace+0x0/0x43c [ 85.163914][ T5154] show_stack+0x2c/0x3c [ 85.164546][ T5154] __dump_stack+0x30/0x40 [ 85.165209][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.165847][ T5154] dump_stack+0x1c/0x5c [ 85.166456][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.167309][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.167987][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.168648][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.169292][ T5154] inet_sendmsg+0x154/0x284 [ 85.169958][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.170642][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.171287][ T5154] invoke_syscall+0x98/0x2b8 [ 85.171939][ T5154] el0_svc_common+0x138/0x258 [ 85.172634][ T5154] do_el0_svc+0x58/0x14c [ 85.173232][ T5154] el0_svc+0x78/0x1e0 [ 85.173822][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.174513][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.175324][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.176882][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.177926][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.179399][ T5154] Call trace: [ 85.179857][ T5154] dump_backtrace+0x0/0x43c [ 85.180474][ T5154] show_stack+0x2c/0x3c [ 85.181029][ T5154] __dump_stack+0x30/0x40 [ 85.181666][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.182309][ T5154] dump_stack+0x1c/0x5c [ 85.182884][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.183670][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.184341][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.185026][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.185689][ T5154] inet_sendmsg+0x154/0x284 [ 85.186327][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.186945][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.187604][ T5154] invoke_syscall+0x98/0x2b8 [ 85.188233][ T5154] el0_svc_common+0x138/0x258 [ 85.188912][ T5154] do_el0_svc+0x58/0x14c [ 85.189512][ T5154] el0_svc+0x78/0x1e0 [ 85.190030][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.190703][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.191493][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.193004][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.194005][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.195502][ T5154] Call trace: [ 85.195962][ T5154] dump_backtrace+0x0/0x43c [ 85.196555][ T5154] show_stack+0x2c/0x3c [ 85.197107][ T5154] __dump_stack+0x30/0x40 [ 85.197723][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.198385][ T5154] dump_stack+0x1c/0x5c [ 85.198925][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.199632][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.200294][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.200971][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.201629][ T5154] inet_sendmsg+0x154/0x284 [ 85.202231][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.202882][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.203565][ T5154] invoke_syscall+0x98/0x2b8 [ 85.204219][ T5154] el0_svc_common+0x138/0x258 [ 85.204830][ T5154] do_el0_svc+0x58/0x14c [ 85.205517][ T5154] el0_svc+0x78/0x1e0 [ 85.206064][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.206797][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.207704][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.209215][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.210284][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.211582][ T5154] Call trace: [ 85.211982][ T5154] dump_backtrace+0x0/0x43c [ 85.212560][ T5154] show_stack+0x2c/0x3c [ 85.213087][ T5154] __dump_stack+0x30/0x40 [ 85.213652][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.214279][ T5154] dump_stack+0x1c/0x5c [ 85.214879][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.215665][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.216417][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.217101][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.217725][ T5154] inet_sendmsg+0x154/0x284 [ 85.218337][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.218971][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.219621][ T5154] invoke_syscall+0x98/0x2b8 [ 85.220289][ T5154] el0_svc_common+0x138/0x258 [ 85.220975][ T5154] do_el0_svc+0x58/0x14c [ 85.221583][ T5154] el0_svc+0x78/0x1e0 [ 85.222116][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.222831][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.223864][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.225357][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.226311][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.227632][ T5154] Call trace: [ 85.228051][ T5154] dump_backtrace+0x0/0x43c [ 85.228636][ T5154] show_stack+0x2c/0x3c [ 85.229191][ T5154] __dump_stack+0x30/0x40 [ 85.229781][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.230420][ T5154] dump_stack+0x1c/0x5c [ 85.230987][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.231753][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.232443][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.233128][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.233769][ T5154] inet_sendmsg+0x154/0x284 [ 85.234415][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.235064][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.235817][ T5154] invoke_syscall+0x98/0x2b8 [ 85.236498][ T5154] el0_svc_common+0x138/0x258 [ 85.237211][ T5154] do_el0_svc+0x58/0x14c [ 85.237787][ T5154] el0_svc+0x78/0x1e0 [ 85.238379][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.239169][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.240059][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.241606][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.242749][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.244117][ T5154] Call trace: [ 85.244599][ T5154] dump_backtrace+0x0/0x43c [ 85.245253][ T5154] show_stack+0x2c/0x3c [ 85.245841][ T5154] __dump_stack+0x30/0x40 [ 85.246437][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.247066][ T5154] dump_stack+0x1c/0x5c [ 85.247664][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.248445][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.249125][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.249822][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.250459][ T5154] inet_sendmsg+0x154/0x284 [ 85.251048][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.251697][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.252356][ T5154] invoke_syscall+0x98/0x2b8 [ 85.253040][ T5154] el0_svc_common+0x138/0x258 [ 85.253715][ T5154] do_el0_svc+0x58/0x14c [ 85.254272][ T5154] el0_svc+0x78/0x1e0 [ 85.254822][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.255516][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.256535][ T5154] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.257995][ T5154] CPU: 1 PID: 5154 Comm: syz.0.57 Not tainted syzkaller #0 [ 85.258993][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.260388][ T5154] Call trace: [ 85.260863][ T5154] dump_backtrace+0x0/0x43c [ 85.261504][ T5154] show_stack+0x2c/0x3c [ 85.262010][ T5154] __dump_stack+0x30/0x40 [ 85.262665][ T5154] dump_stack_lvl+0xf8/0x160 [ 85.263302][ T5154] dump_stack+0x1c/0x5c [ 85.263868][ T5154] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.264662][ T5154] dccp_xmit_packet+0x298/0x448 [ 85.265322][ T5154] dccp_write_xmit+0x118/0x1d0 [ 85.266049][ T5154] dccp_sendmsg+0x538/0x8a8 [ 85.266666][ T5154] inet_sendmsg+0x154/0x284 [ 85.267323][ T5154] __sys_sendto+0x2e8/0x3d8 [ 85.268032][ T5154] __arm64_sys_sendto+0xd8/0xf8 [ 85.268822][ T5154] invoke_syscall+0x98/0x2b8 [ 85.269480][ T5154] el0_svc_common+0x138/0x258 [ 85.270164][ T5154] do_el0_svc+0x58/0x14c [ 85.270754][ T5154] el0_svc+0x78/0x1e0 [ 85.271285][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 85.271965][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 85.305906][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.307531][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.308639][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.310077][ T5158] Call trace: [ 85.310536][ T5158] dump_backtrace+0x0/0x43c [ 85.311183][ T5158] show_stack+0x2c/0x3c [ 85.311874][ T5158] __dump_stack+0x30/0x40 [ 85.312503][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.313164][ T5158] dump_stack+0x1c/0x5c [ 85.313827][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.314602][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.315416][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.316123][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.316807][ T5158] inet_sendmsg+0x154/0x284 [ 85.317484][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.318176][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.318871][ T5158] invoke_syscall+0x98/0x2b8 [ 85.319566][ T5158] el0_svc_common+0x138/0x258 [ 85.320238][ T5158] do_el0_svc+0x58/0x14c [ 85.320867][ T5158] el0_svc+0x78/0x1e0 [ 85.321442][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.322147][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.323020][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.325755][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.326775][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.328320][ T5158] Call trace: [ 85.328805][ T5158] dump_backtrace+0x0/0x43c [ 85.329448][ T5158] show_stack+0x2c/0x3c [ 85.330045][ T5158] __dump_stack+0x30/0x40 [ 85.330602][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.331247][ T5158] dump_stack+0x1c/0x5c [ 85.331822][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.332615][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.333297][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.333922][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.334528][ T5158] inet_sendmsg+0x154/0x284 [ 85.335224][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.335870][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.336576][ T5158] invoke_syscall+0x98/0x2b8 [ 85.337258][ T5158] el0_svc_common+0x138/0x258 [ 85.337961][ T5158] do_el0_svc+0x58/0x14c [ 85.338653][ T5158] el0_svc+0x78/0x1e0 [ 85.339237][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.339924][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.340770][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.342369][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.343370][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.344810][ T5158] Call trace: [ 85.345304][ T5158] dump_backtrace+0x0/0x43c [ 85.345927][ T5158] show_stack+0x2c/0x3c [ 85.346527][ T5158] __dump_stack+0x30/0x40 [ 85.347107][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.347759][ T5158] dump_stack+0x1c/0x5c [ 85.348338][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.349155][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.349861][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.350586][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.351276][ T5158] inet_sendmsg+0x154/0x284 [ 85.351964][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.352639][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.353338][ T5158] invoke_syscall+0x98/0x2b8 [ 85.354012][ T5158] el0_svc_common+0x138/0x258 [ 85.354752][ T5158] do_el0_svc+0x58/0x14c [ 85.355328][ T5158] el0_svc+0x78/0x1e0 [ 85.355918][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.356653][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.357497][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.359059][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.360088][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.361462][ T5158] Call trace: [ 85.361931][ T5158] dump_backtrace+0x0/0x43c [ 85.362539][ T5158] show_stack+0x2c/0x3c [ 85.363166][ T5158] __dump_stack+0x30/0x40 [ 85.363779][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.364454][ T5158] dump_stack+0x1c/0x5c [ 85.365061][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.365874][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.366599][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.367307][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.367982][ T5158] inet_sendmsg+0x154/0x284 [ 85.368645][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.369287][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.370018][ T5158] invoke_syscall+0x98/0x2b8 [ 85.370669][ T5158] el0_svc_common+0x138/0x258 [ 85.371334][ T5158] do_el0_svc+0x58/0x14c [ 85.371955][ T5158] el0_svc+0x78/0x1e0 [ 85.372540][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.373222][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.374032][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.376081][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.377160][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.378696][ T5158] Call trace: [ 85.379187][ T5158] dump_backtrace+0x0/0x43c [ 85.379845][ T5158] show_stack+0x2c/0x3c [ 85.380456][ T5158] __dump_stack+0x30/0x40 [ 85.381075][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.381827][ T5158] dump_stack+0x1c/0x5c [ 85.382442][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.383204][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.383883][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.384558][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.385263][ T5158] inet_sendmsg+0x154/0x284 [ 85.385920][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.386571][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.387266][ T5158] invoke_syscall+0x98/0x2b8 [ 85.387963][ T5158] el0_svc_common+0x138/0x258 [ 85.388669][ T5158] do_el0_svc+0x58/0x14c [ 85.389322][ T5158] el0_svc+0x78/0x1e0 [ 85.389901][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.390662][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.391558][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.393129][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.394199][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.395622][ T5158] Call trace: [ 85.396122][ T5158] dump_backtrace+0x0/0x43c [ 85.396777][ T5158] show_stack+0x2c/0x3c [ 85.397379][ T5158] __dump_stack+0x30/0x40 [ 85.398002][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.398648][ T5158] dump_stack+0x1c/0x5c [ 85.399266][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.400050][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.400744][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.401389][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.401993][ T5158] inet_sendmsg+0x154/0x284 [ 85.402576][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.403211][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.403915][ T5158] invoke_syscall+0x98/0x2b8 [ 85.404558][ T5158] el0_svc_common+0x138/0x258 [ 85.405267][ T5158] do_el0_svc+0x58/0x14c [ 85.405876][ T5158] el0_svc+0x78/0x1e0 [ 85.406467][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.407162][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.407989][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.409578][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.410528][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.411878][ T5158] Call trace: [ 85.412323][ T5158] dump_backtrace+0x0/0x43c [ 85.412903][ T5158] show_stack+0x2c/0x3c [ 85.413463][ T5158] __dump_stack+0x30/0x40 [ 85.414087][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.414709][ T5158] dump_stack+0x1c/0x5c [ 85.415297][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.416069][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.416786][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.417484][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.418138][ T5158] inet_sendmsg+0x154/0x284 [ 85.418787][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.419423][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.420104][ T5158] invoke_syscall+0x98/0x2b8 [ 85.420800][ T5158] el0_svc_common+0x138/0x258 [ 85.421431][ T5158] do_el0_svc+0x58/0x14c [ 85.422034][ T5158] el0_svc+0x78/0x1e0 [ 85.422580][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.423261][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.424110][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.425723][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.426723][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.428093][ T5158] Call trace: [ 85.428519][ T5158] dump_backtrace+0x0/0x43c [ 85.429132][ T5158] show_stack+0x2c/0x3c [ 85.429711][ T5158] __dump_stack+0x30/0x40 [ 85.430319][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.430943][ T5158] dump_stack+0x1c/0x5c [ 85.431517][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.432240][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.432946][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.433601][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.434241][ T5158] inet_sendmsg+0x154/0x284 [ 85.434873][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.435552][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.436247][ T5158] invoke_syscall+0x98/0x2b8 [ 85.436916][ T5158] el0_svc_common+0x138/0x258 [ 85.437593][ T5158] do_el0_svc+0x58/0x14c [ 85.438187][ T5158] el0_svc+0x78/0x1e0 [ 85.438766][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.439465][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.440431][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.442174][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.443231][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.444728][ T5158] Call trace: [ 85.445234][ T5158] dump_backtrace+0x0/0x43c [ 85.445919][ T5158] show_stack+0x2c/0x3c [ 85.446531][ T5158] __dump_stack+0x30/0x40 [ 85.447250][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.447990][ T5158] dump_stack+0x1c/0x5c [ 85.448643][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.449442][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.450183][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.450854][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.451499][ T5158] inet_sendmsg+0x154/0x284 [ 85.452135][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.452804][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.453544][ T5158] invoke_syscall+0x98/0x2b8 [ 85.454160][ T5158] el0_svc_common+0x138/0x258 [ 85.454852][ T5158] do_el0_svc+0x58/0x14c [ 85.455514][ T5158] el0_svc+0x78/0x1e0 [ 85.456090][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.456769][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.457605][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.459186][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.460258][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.461750][ T5158] Call trace: [ 85.462199][ T5158] dump_backtrace+0x0/0x43c [ 85.462855][ T5158] show_stack+0x2c/0x3c [ 85.463420][ T5158] __dump_stack+0x30/0x40 [ 85.464023][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.464711][ T5158] dump_stack+0x1c/0x5c [ 85.465277][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.466055][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.466753][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.467448][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.468102][ T5158] inet_sendmsg+0x154/0x284 [ 85.468731][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.469439][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.470180][ T5158] invoke_syscall+0x98/0x2b8 [ 85.470902][ T5158] el0_svc_common+0x138/0x258 [ 85.471569][ T5158] do_el0_svc+0x58/0x14c [ 85.472169][ T5158] el0_svc+0x78/0x1e0 [ 85.472714][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.473399][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.474324][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.475894][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.476983][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.478423][ T5158] Call trace: [ 85.478901][ T5158] dump_backtrace+0x0/0x43c [ 85.479538][ T5158] show_stack+0x2c/0x3c [ 85.480150][ T5158] __dump_stack+0x30/0x40 [ 85.480740][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.481396][ T5158] dump_stack+0x1c/0x5c [ 85.481977][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.482725][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.483413][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.484139][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.484808][ T5158] inet_sendmsg+0x154/0x284 [ 85.485411][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.486026][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.486804][ T5158] invoke_syscall+0x98/0x2b8 [ 85.487477][ T5158] el0_svc_common+0x138/0x258 [ 85.488178][ T5158] do_el0_svc+0x58/0x14c [ 85.488781][ T5158] el0_svc+0x78/0x1e0 [ 85.489278][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.489922][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.491056][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.492752][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.493875][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.495378][ T5158] Call trace: [ 85.495875][ T5158] dump_backtrace+0x0/0x43c [ 85.496564][ T5158] show_stack+0x2c/0x3c [ 85.497202][ T5158] __dump_stack+0x30/0x40 [ 85.497870][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.498545][ T5158] dump_stack+0x1c/0x5c [ 85.499116][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.499927][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.500609][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.501289][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.501926][ T5158] inet_sendmsg+0x154/0x284 [ 85.502635][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.503222][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.503921][ T5158] invoke_syscall+0x98/0x2b8 [ 85.504582][ T5158] el0_svc_common+0x138/0x258 [ 85.505277][ T5158] do_el0_svc+0x58/0x14c [ 85.505830][ T5158] el0_svc+0x78/0x1e0 [ 85.506447][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.507182][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.508063][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.509688][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.510697][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.512045][ T5158] Call trace: [ 85.512488][ T5158] dump_backtrace+0x0/0x43c [ 85.513110][ T5158] show_stack+0x2c/0x3c [ 85.513757][ T5158] __dump_stack+0x30/0x40 [ 85.514409][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.515108][ T5158] dump_stack+0x1c/0x5c [ 85.515734][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.516489][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.517223][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.517904][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.518522][ T5158] inet_sendmsg+0x154/0x284 [ 85.519100][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.519672][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.520344][ T5158] invoke_syscall+0x98/0x2b8 [ 85.520966][ T5158] el0_svc_common+0x138/0x258 [ 85.521622][ T5158] do_el0_svc+0x58/0x14c [ 85.522183][ T5158] el0_svc+0x78/0x1e0 [ 85.522731][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.523432][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.524269][ T5158] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.525702][ T5158] CPU: 1 PID: 5158 Comm: syz.0.59 Not tainted syzkaller #0 [ 85.526684][ T5158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.528062][ T5158] Call trace: [ 85.528516][ T5158] dump_backtrace+0x0/0x43c [ 85.529173][ T5158] show_stack+0x2c/0x3c [ 85.529737][ T5158] __dump_stack+0x30/0x40 [ 85.530337][ T5158] dump_stack_lvl+0xf8/0x160 [ 85.531002][ T5158] dump_stack+0x1c/0x5c [ 85.531594][ T5158] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.532356][ T5158] dccp_xmit_packet+0x298/0x448 [ 85.533047][ T5158] dccp_write_xmit+0x118/0x1d0 [ 85.533698][ T5158] dccp_sendmsg+0x538/0x8a8 [ 85.534351][ T5158] inet_sendmsg+0x154/0x284 [ 85.534930][ T5158] __sys_sendto+0x2e8/0x3d8 [ 85.535554][ T5158] __arm64_sys_sendto+0xd8/0xf8 [ 85.536200][ T5158] invoke_syscall+0x98/0x2b8 [ 85.536845][ T5158] el0_svc_common+0x138/0x258 [ 85.537541][ T5158] do_el0_svc+0x58/0x14c [ 85.538244][ T5158] el0_svc+0x78/0x1e0 [ 85.538827][ T5158] el0t_64_sync_handler+0xcc/0xe4 [ 85.539586][ T5158] el0t_64_sync+0x1a0/0x1a4 [ 85.557156][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.558964][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.560064][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.561457][ T5160] Call trace: [ 85.561927][ T5160] dump_backtrace+0x0/0x43c [ 85.562573][ T5160] show_stack+0x2c/0x3c [ 85.563154][ T5160] __dump_stack+0x30/0x40 [ 85.563743][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.564403][ T5160] dump_stack+0x1c/0x5c [ 85.565011][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.565845][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.566516][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.567206][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.567807][ T5160] inet_sendmsg+0x154/0x284 [ 85.568448][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.569064][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.569725][ T5160] invoke_syscall+0x98/0x2b8 [ 85.570363][ T5160] el0_svc_common+0x138/0x258 [ 85.571014][ T5160] do_el0_svc+0x58/0x14c [ 85.571627][ T5160] el0_svc+0x78/0x1e0 [ 85.572211][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.572901][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.573786][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.575610][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.576702][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.578146][ T5160] Call trace: [ 85.578600][ T5160] dump_backtrace+0x0/0x43c [ 85.579247][ T5160] show_stack+0x2c/0x3c [ 85.579850][ T5160] __dump_stack+0x30/0x40 [ 85.580454][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.581066][ T5160] dump_stack+0x1c/0x5c [ 85.581616][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.582409][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.583231][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.583968][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.584675][ T5160] inet_sendmsg+0x154/0x284 [ 85.585399][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.586156][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.586876][ T5160] invoke_syscall+0x98/0x2b8 [ 85.587596][ T5160] el0_svc_common+0x138/0x258 [ 85.588315][ T5160] do_el0_svc+0x58/0x14c [ 85.588942][ T5160] el0_svc+0x78/0x1e0 [ 85.589510][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.590201][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.591861][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.593305][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.594288][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.595679][ T5160] Call trace: [ 85.596133][ T5160] dump_backtrace+0x0/0x43c [ 85.596762][ T5160] show_stack+0x2c/0x3c [ 85.597401][ T5160] __dump_stack+0x30/0x40 [ 85.598048][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.598727][ T5160] dump_stack+0x1c/0x5c [ 85.599330][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.600087][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.600755][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.601390][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.601996][ T5160] inet_sendmsg+0x154/0x284 [ 85.602609][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.603209][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.603872][ T5160] invoke_syscall+0x98/0x2b8 [ 85.604498][ T5160] el0_svc_common+0x138/0x258 [ 85.605083][ T5160] do_el0_svc+0x58/0x14c [ 85.605679][ T5160] el0_svc+0x78/0x1e0 [ 85.606250][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.606973][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.608518][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.610045][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.611101][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.612714][ T5160] Call trace: [ 85.613238][ T5160] dump_backtrace+0x0/0x43c [ 85.613848][ T5160] show_stack+0x2c/0x3c [ 85.614447][ T5160] __dump_stack+0x30/0x40 [ 85.615090][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.615790][ T5160] dump_stack+0x1c/0x5c [ 85.616413][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.617172][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.617872][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.618571][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.619224][ T5160] inet_sendmsg+0x154/0x284 [ 85.619917][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.620623][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.621368][ T5160] invoke_syscall+0x98/0x2b8 [ 85.622083][ T5160] el0_svc_common+0x138/0x258 [ 85.622760][ T5160] do_el0_svc+0x58/0x14c [ 85.623371][ T5160] el0_svc+0x78/0x1e0 [ 85.623966][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.624693][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.625609][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.627193][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.628172][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.629488][ T5160] Call trace: [ 85.629909][ T5160] dump_backtrace+0x0/0x43c [ 85.630540][ T5160] show_stack+0x2c/0x3c [ 85.631111][ T5160] __dump_stack+0x30/0x40 [ 85.631749][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.632386][ T5160] dump_stack+0x1c/0x5c [ 85.632968][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.633714][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.634362][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.634988][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.635613][ T5160] inet_sendmsg+0x154/0x284 [ 85.636197][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.636802][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.637512][ T5160] invoke_syscall+0x98/0x2b8 [ 85.638126][ T5160] el0_svc_common+0x138/0x258 [ 85.638782][ T5160] do_el0_svc+0x58/0x14c [ 85.639408][ T5160] el0_svc+0x78/0x1e0 [ 85.639992][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.640693][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.641681][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.643199][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.644177][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.645596][ T5160] Call trace: [ 85.646074][ T5160] dump_backtrace+0x0/0x43c [ 85.646716][ T5160] show_stack+0x2c/0x3c [ 85.647292][ T5160] __dump_stack+0x30/0x40 [ 85.647915][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.648555][ T5160] dump_stack+0x1c/0x5c [ 85.649128][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.649905][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.650589][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.651212][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.651849][ T5160] inet_sendmsg+0x154/0x284 [ 85.652483][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.653261][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.654082][ T5160] invoke_syscall+0x98/0x2b8 [ 85.654768][ T5160] el0_svc_common+0x138/0x258 [ 85.655544][ T5160] do_el0_svc+0x58/0x14c [ 85.656167][ T5160] el0_svc+0x78/0x1e0 [ 85.656716][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.657492][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.658320][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.659781][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.660810][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.662228][ T5160] Call trace: [ 85.662689][ T5160] dump_backtrace+0x0/0x43c [ 85.663406][ T5160] show_stack+0x2c/0x3c [ 85.664017][ T5160] __dump_stack+0x30/0x40 [ 85.664678][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.665344][ T5160] dump_stack+0x1c/0x5c [ 85.665948][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.666746][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.667416][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.668104][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.668759][ T5160] inet_sendmsg+0x154/0x284 [ 85.669403][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.670022][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.670721][ T5160] invoke_syscall+0x98/0x2b8 [ 85.671387][ T5160] el0_svc_common+0x138/0x258 [ 85.672042][ T5160] do_el0_svc+0x58/0x14c [ 85.672691][ T5160] el0_svc+0x78/0x1e0 [ 85.673291][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.673992][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.674814][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.676349][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.677342][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.678758][ T5160] Call trace: [ 85.679268][ T5160] dump_backtrace+0x0/0x43c [ 85.679881][ T5160] show_stack+0x2c/0x3c [ 85.680417][ T5160] __dump_stack+0x30/0x40 [ 85.681014][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.681632][ T5160] dump_stack+0x1c/0x5c [ 85.682232][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.682949][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.683623][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.684254][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.684882][ T5160] inet_sendmsg+0x154/0x284 [ 85.685492][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.686174][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.686835][ T5160] invoke_syscall+0x98/0x2b8 [ 85.687492][ T5160] el0_svc_common+0x138/0x258 [ 85.688193][ T5160] do_el0_svc+0x58/0x14c [ 85.688811][ T5160] el0_svc+0x78/0x1e0 [ 85.689372][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.690063][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.690887][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.692376][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.693438][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.694976][ T5160] Call trace: [ 85.695421][ T5160] dump_backtrace+0x0/0x43c [ 85.696010][ T5160] show_stack+0x2c/0x3c [ 85.696613][ T5160] __dump_stack+0x30/0x40 [ 85.697206][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.697836][ T5160] dump_stack+0x1c/0x5c [ 85.698382][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.699161][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.699846][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.700507][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.701153][ T5160] inet_sendmsg+0x154/0x284 [ 85.701755][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.702349][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.703005][ T5160] invoke_syscall+0x98/0x2b8 [ 85.703593][ T5160] el0_svc_common+0x138/0x258 [ 85.704209][ T5160] do_el0_svc+0x58/0x14c [ 85.704813][ T5160] el0_svc+0x78/0x1e0 [ 85.705374][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.706079][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.706920][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.708375][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.709363][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.710677][ T5160] Call trace: [ 85.711118][ T5160] dump_backtrace+0x0/0x43c [ 85.711852][ T5160] show_stack+0x2c/0x3c [ 85.712532][ T5160] __dump_stack+0x30/0x40 [ 85.713267][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.713965][ T5160] dump_stack+0x1c/0x5c [ 85.714623][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.715443][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.716171][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.716932][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.717699][ T5160] inet_sendmsg+0x154/0x284 [ 85.718450][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.719214][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.719966][ T5160] invoke_syscall+0x98/0x2b8 [ 85.720774][ T5160] el0_svc_common+0x138/0x258 [ 85.721501][ T5160] do_el0_svc+0x58/0x14c [ 85.722129][ T5160] el0_svc+0x78/0x1e0 [ 85.722721][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.723486][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.724706][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.726356][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.727445][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.728818][ T5160] Call trace: [ 85.729412][ T5160] dump_backtrace+0x0/0x43c [ 85.730091][ T5160] show_stack+0x2c/0x3c [ 85.730710][ T5160] __dump_stack+0x30/0x40 [ 85.731390][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.732065][ T5160] dump_stack+0x1c/0x5c [ 85.732614][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.733380][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.734079][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.734781][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.735459][ T5160] inet_sendmsg+0x154/0x284 [ 85.736083][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.736703][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.737414][ T5160] invoke_syscall+0x98/0x2b8 [ 85.738101][ T5160] el0_svc_common+0x138/0x258 [ 85.738763][ T5160] do_el0_svc+0x58/0x14c [ 85.739376][ T5160] el0_svc+0x78/0x1e0 [ 85.739930][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.740608][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.741745][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.743294][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.744237][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.744252][ T5160] Call trace: [ 85.744256][ T5160] dump_backtrace+0x0/0x43c [ 85.744264][ T5160] show_stack+0x2c/0x3c [ 85.744270][ T5160] __dump_stack+0x30/0x40 [ 85.744276][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.748753][ T5160] dump_stack+0x1c/0x5c [ 85.749370][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.750132][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.750789][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.751454][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.752062][ T5160] inet_sendmsg+0x154/0x284 [ 85.752691][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.753313][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.753979][ T5160] invoke_syscall+0x98/0x2b8 [ 85.754629][ T5160] el0_svc_common+0x138/0x258 [ 85.755262][ T5160] do_el0_svc+0x58/0x14c [ 85.755824][ T5160] el0_svc+0x78/0x1e0 [ 85.756369][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.757033][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.757851][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.759329][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.760289][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.761631][ T5160] Call trace: [ 85.762068][ T5160] dump_backtrace+0x0/0x43c [ 85.762670][ T5160] show_stack+0x2c/0x3c [ 85.763239][ T5160] __dump_stack+0x30/0x40 [ 85.763816][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.764457][ T5160] dump_stack+0x1c/0x5c [ 85.765029][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.765783][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.766447][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.767086][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.767695][ T5160] inet_sendmsg+0x154/0x284 [ 85.768316][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.768928][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.769580][ T5160] invoke_syscall+0x98/0x2b8 [ 85.770214][ T5160] el0_svc_common+0x138/0x258 [ 85.770869][ T5160] do_el0_svc+0x58/0x14c [ 85.771438][ T5160] el0_svc+0x78/0x1e0 [ 85.771978][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.772658][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.773460][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.774949][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.775901][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.777245][ T5160] Call trace: [ 85.777687][ T5160] dump_backtrace+0x0/0x43c [ 85.778280][ T5160] show_stack+0x2c/0x3c [ 85.778803][ T5160] __dump_stack+0x30/0x40 [ 85.779375][ T5160] dump_stack_lvl+0xf8/0x160 [ 85.779989][ T5160] dump_stack+0x1c/0x5c [ 85.780559][ T5160] ccid3_hc_tx_packet_sent+0x24c/0x2b8 [ 85.781279][ T5160] dccp_xmit_packet+0x298/0x448 [ 85.781899][ T5160] dccp_write_xmit+0x118/0x1d0 [ 85.782529][ T5160] dccp_sendmsg+0x538/0x8a8 [ 85.783123][ T5160] inet_sendmsg+0x154/0x284 [ 85.783688][ T5160] __sys_sendto+0x2e8/0x3d8 [ 85.784285][ T5160] __arm64_sys_sendto+0xd8/0xf8 [ 85.784921][ T5160] invoke_syscall+0x98/0x2b8 [ 85.785531][ T5160] el0_svc_common+0x138/0x258 [ 85.786183][ T5160] do_el0_svc+0x58/0x14c [ 85.786775][ T5160] el0_svc+0x78/0x1e0 [ 85.787344][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 85.788028][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 85.788831][ T5160] BUG: "hc->tx_t_ipi == 0" holds (exception!) at net/dccp/ccids/ccid3.c:90/ccid3_update_send_interval() [ 85.790283][ T5160] CPU: 1 PID: 5160 Comm: syz.0.60 Not tainted syzkaller #0 [ 85.791259][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.792616][ T5160] Call trace: [ 85.793059][ T5160] dump_backtrace+0x0/0x43c [ 85.793672][ T5160] show_stack+0x2c/0x3c [ 85.794252][ T5160] __dump_stack+0x30/0x40