Warning: Permanently added '10.128.0.126' (ED25519) to the list of known hosts. [ 48.638856][ T4019] chnl_net:caif_netlink_parms(): no params data found [ 48.675863][ T4019] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.677853][ T4019] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.681578][ T4019] device bridge_slave_0 entered promiscuous mode [ 48.685885][ T4019] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.687809][ T4019] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.690862][ T4019] device bridge_slave_1 entered promiscuous mode [ 48.706385][ T4019] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.710818][ T4019] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.726512][ T4019] team0: Port device team_slave_0 added [ 48.730104][ T4019] team0: Port device team_slave_1 added [ 48.742753][ T4019] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.744653][ T4019] 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. [ 48.751991][ T4019] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.756730][ T4019] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 48.758953][ T4019] 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. [ 48.766103][ T4019] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 48.840482][ T4019] device hsr_slave_0 entered promiscuous mode [ 48.878706][ T4019] device hsr_slave_1 entered promiscuous mode [ 48.999756][ T4019] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.041759][ T4019] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.090912][ T4019] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.141296][ T4019] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.207231][ T4019] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.209367][ T4019] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.211799][ T4019] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.213741][ T4019] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.254002][ T4019] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.261677][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.265979][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.270073][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.273110][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.282349][ T4019] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.292476][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.295115][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.297068][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.300107][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.302631][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.304603][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.318037][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.322003][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.327957][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.338120][ T4019] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.342615][ T4019] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.346710][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.350487][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.353244][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.365305][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.367432][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.375189][ T4019] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.390738][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.401097][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.404312][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.407992][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.413840][ T4019] device veth0_vlan entered promiscuous mode [ 49.420661][ T4019] device veth1_vlan entered promiscuous mode [ 49.435636][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 49.439099][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 49.441941][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.446703][ T4019] device veth0_macvtap entered promiscuous mode [ 49.451716][ T4019] device veth1_macvtap entered promiscuous mode [ 49.463726][ T4019] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.466006][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.470600][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.476442][ T4019] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.479717][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.484731][ T4019] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.487196][ T4019] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.490559][ T4019] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.492920][ T4019] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 49.528207][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 49.542857][ T4019] [ 49.543485][ T4019] ====================================================== [ 49.545365][ T4019] WARNING: possible circular locking dependency detected [ 49.547136][ T4019] 5.15.176-syzkaller #0 Not tainted [ 49.548509][ T4019] ------------------------------------------------------ [ 49.550343][ T4019] syz-executor350/4019 is trying to acquire lock: [ 49.551973][ T4019] ffff0000ce101450 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 49.554969][ T4019] [ 49.554969][ T4019] but task is already holding lock: [ 49.556900][ T4019] ffff0000ce100120 (sk_lock-AF_SMC/1){+.+.}-{0:0}, at: smc_release+0x1f4/0x574 [ 49.559296][ T4019] [ 49.559296][ T4019] which lock already depends on the new lock. [ 49.559296][ T4019] [ 49.562029][ T4019] [ 49.562029][ T4019] the existing dependency chain (in reverse order) is: [ 49.564392][ T4019] [ 49.564392][ T4019] -> #1 (sk_lock-AF_SMC/1){+.+.}-{0:0}: [ 49.566403][ T4019] lock_sock_nested+0xec/0x1ec [ 49.567838][ T4019] smc_listen_out+0x11c/0x3fc [ 49.569238][ T4019] smc_listen_work+0x1f4/0xe6c [ 49.570719][ T4019] process_one_work+0x790/0x11b8 [ 49.572177][ T4019] worker_thread+0x910/0x1034 [ 49.573547][ T4019] kthread+0x37c/0x45c [ 49.574755][ T4019] ret_from_fork+0x10/0x20 [ 49.576033][ T4019] [ 49.576033][ T4019] -> #0 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}: [ 49.578863][ T4019] __lock_acquire+0x32d4/0x7638 [ 49.580291][ T4019] lock_acquire+0x240/0x77c [ 49.581612][ T4019] __flush_work+0xf8/0x1c0 [ 49.582900][ T4019] __cancel_work_timer+0x3ec/0x548 [ 49.584401][ T4019] cancel_work_sync+0x24/0x38 [ 49.585717][ T4019] smc_clcsock_release+0x64/0xec [ 49.587098][ T4019] __smc_release+0x388/0x540 [ 49.588459][ T4019] smc_close_non_accepted+0xdc/0x298 [ 49.589998][ T4019] smc_close_active+0x908/0xc8c [ 49.591424][ T4019] __smc_release+0x9c/0x540 [ 49.592735][ T4019] smc_release+0x26c/0x574 [ 49.594041][ T4019] sock_close+0xb8/0x1fc [ 49.595205][ T4019] __fput+0x1c4/0x800 [ 49.596343][ T4019] ____fput+0x20/0x30 [ 49.597595][ T4019] task_work_run+0x130/0x1e4 [ 49.598955][ T4019] do_exit+0x670/0x20bc [ 49.600110][ T4019] do_group_exit+0x110/0x268 [ 49.601441][ T4019] __wake_up_parent+0x0/0x60 [ 49.602813][ T4019] invoke_syscall+0x98/0x2b8 [ 49.604078][ T4019] el0_svc_common+0x138/0x258 [ 49.605513][ T4019] do_el0_svc+0x58/0x14c [ 49.606769][ T4019] el0_svc+0x7c/0x1f0 [ 49.607920][ T4019] el0t_64_sync_handler+0x84/0xe4 [ 49.609327][ T4019] el0t_64_sync+0x1a0/0x1a4 [ 49.610634][ T4019] [ 49.610634][ T4019] other info that might help us debug this: [ 49.610634][ T4019] [ 49.613271][ T4019] Possible unsafe locking scenario: [ 49.613271][ T4019] [ 49.615237][ T4019] CPU0 CPU1 [ 49.616644][ T4019] ---- ---- [ 49.618015][ T4019] lock(sk_lock-AF_SMC/1); [ 49.619180][ T4019] lock((work_completion)(&new_smc->smc_listen_work)); [ 49.621705][ T4019] lock(sk_lock-AF_SMC/1); [ 49.623521][ T4019] lock((work_completion)(&new_smc->smc_listen_work)); [ 49.625493][ T4019] [ 49.625493][ T4019] *** DEADLOCK *** [ 49.625493][ T4019] [ 49.627724][ T4019] 2 locks held by syz-executor350/4019: [ 49.629233][ T4019] #0: ffff0000e18c7a10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x80/0x1fc [ 49.632127][ T4019] #1: ffff0000ce100120 (sk_lock-AF_SMC/1){+.+.}-{0:0}, at: smc_release+0x1f4/0x574 [ 49.634775][ T4019] [ 49.634775][ T4019] stack backtrace: [ 49.636441][ T4019] CPU: 0 PID: 4019 Comm: syz-executor350 Not tainted 5.15.176-syzkaller #0 [ 49.638738][ T4019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 49.641523][ T4019] Call trace: [ 49.642348][ T4019] dump_backtrace+0x0/0x530 [ 49.643607][ T4019] show_stack+0x2c/0x3c [ 49.644781][ T4019] dump_stack_lvl+0x108/0x170 [ 49.646010][ T4019] dump_stack+0x1c/0x58 [ 49.647102][ T4019] print_circular_bug+0x150/0x1b8 [ 49.648525][ T4019] check_noncircular+0x2cc/0x378 [ 49.649781][ T4019] __lock_acquire+0x32d4/0x7638 [ 49.651157][ T4019] lock_acquire+0x240/0x77c [ 49.652362][ T4019] __flush_work+0xf8/0x1c0 [ 49.653610][ T4019] __cancel_work_timer+0x3ec/0x548 [ 49.654981][ T4019] cancel_work_sync+0x24/0x38 [ 49.656214][ T4019] smc_clcsock_release+0x64/0xec [ 49.657589][ T4019] __smc_release+0x388/0x540 [ 49.658750][ T4019] smc_close_non_accepted+0xdc/0x298 [ 49.660170][ T4019] smc_close_active+0x908/0xc8c [ 49.661437][ T4019] __smc_release+0x9c/0x540 [ 49.662651][ T4019] smc_release+0x26c/0x574 [ 49.663825][ T4019] sock_close+0xb8/0x1fc [ 49.664916][ T4019] __fput+0x1c4/0x800 [ 49.666003][ T4019] ____fput+0x20/0x30 [ 49.667123][ T4019] task_work_run+0x130/0x1e4 [ 49.668366][ T4019] do_exit+0x670/0x20bc [ 49.669534][ T4019] do_group_exit+0x110/0x268 [ 49.670747][ T4019] __wake_up_parent+0x0/0x60 [ 49.671984][ T4019] invoke_syscall+0x98/0x2b8 [ 49.673270][ T4019] el0_svc_common+0x138/0x258 [ 49.674582][ T4019] do_el0_svc+0x58/0x14c [ 49.675688][ T4019] el0_svc+0x7c/0x1f0 [ 49.676729][ T4019] el0t_64_sync_handler+0x84/0xe4 [ 49.678113][ T4019] el0t_64_sync+0x1a0/0x1a4