Warning: Permanently added '10.128.0.106' (ED25519) to the list of known hosts. [ 48.190149][ T3963] chnl_net:caif_netlink_parms(): no params data found [ 48.230451][ T3963] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.232571][ T3963] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.235154][ T3963] device bridge_slave_0 entered promiscuous mode [ 48.240229][ T3963] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.242234][ T3963] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.244775][ T3963] device bridge_slave_1 entered promiscuous mode [ 48.262162][ T3963] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.266532][ T3963] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.282174][ T3963] team0: Port device team_slave_0 added [ 48.286465][ T3963] team0: Port device team_slave_1 added [ 48.299777][ T3963] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.301672][ T3963] 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. [ 48.308733][ T3963] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.313463][ T3963] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 48.315320][ T3963] 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. [ 48.322356][ T3963] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 48.400898][ T3963] device hsr_slave_0 entered promiscuous mode [ 48.438628][ T3963] device hsr_slave_1 entered promiscuous mode [ 48.572708][ T3963] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 48.621915][ T3963] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 48.681102][ T3963] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 48.730844][ T3963] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.787751][ T3963] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.789835][ T3963] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.792087][ T3963] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.794041][ T3963] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.836588][ T3963] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.844514][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.848423][ T3969] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.851647][ T3969] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.854587][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.863404][ T3963] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.870231][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.872591][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.874395][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.882884][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.885357][ T3969] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.887220][ T3969] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.901482][ T3762] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.904762][ T3762] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.910362][ T1529] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.916417][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.925214][ T3762] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.930645][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.948647][ T3963] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.951374][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 48.953418][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 48.966490][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 48.980138][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 48.982844][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 48.985207][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 48.991449][ T3963] device veth0_vlan entered promiscuous mode [ 48.999132][ T3963] device veth1_vlan entered promiscuous mode [ 49.016066][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 49.019226][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 49.021904][ T3969] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.026390][ T3963] device veth0_macvtap entered promiscuous mode [ 49.030902][ T3963] device veth1_macvtap entered promiscuous mode [ 49.043764][ T3963] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.045882][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.049314][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.054839][ T3963] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.059056][ T3963] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.061361][ T3963] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.063541][ T3963] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.065662][ T3963] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.070465][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 49.097206][ T3963] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209 [ 49.099805][ T3963] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3963, name: syz-executor384 [ 49.102185][ T3963] 2 locks held by syz-executor384/3963: [ 49.103569][ T3963] #0: ffff8000169e74a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac [ 49.105981][ T3963] #1: ffff0000c8a21908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90 [ 49.108441][ T3963] Preemption disabled at: [ 49.108454][ T3963] [] netem_change+0x22c/0x1a90 [ 49.111182][ T3963] CPU: 1 PID: 3963 Comm: syz-executor384 Not tainted 5.15.126-syzkaller-00092-g24c4de4069cb #0 [ 49.113756][ T3963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 49.116277][ T3963] Call trace: [ 49.117063][ T3963] dump_backtrace+0x0/0x530 [ 49.118169][ T3963] show_stack+0x2c/0x3c [ 49.119239][ T3963] dump_stack_lvl+0x108/0x170 [ 49.120421][ T3963] dump_stack+0x1c/0x58 [ 49.121535][ T3963] ___might_sleep+0x380/0x4dc [ 49.122730][ T3963] __might_sleep+0x98/0xf0 [ 49.123890][ T3963] slab_pre_alloc_hook+0x58/0xe8 [ 49.125150][ T3963] __kmalloc_node+0xbc/0x5b8 [ 49.126343][ T3963] kvmalloc_node+0x88/0x204 [ 49.127509][ T3963] get_dist_table+0x9c/0x2a4 [ 49.128695][ T3963] netem_change+0x7cc/0x1a90 [ 49.129886][ T3963] netem_init+0x54/0xb8 [ 49.130990][ T3963] qdisc_create+0x6fc/0xf44 [ 49.132202][ T3963] tc_modify_qdisc+0x8dc/0x1344 [ 49.133448][ T3963] rtnetlink_rcv_msg+0xa74/0xdac [ 49.134724][ T3963] netlink_rcv_skb+0x20c/0x3b8 [ 49.135943][ T3963] rtnetlink_rcv+0x28/0x38 [ 49.137094][ T3963] netlink_unicast+0x664/0x938 [ 49.138332][ T3963] netlink_sendmsg+0x844/0xb38 [ 49.139527][ T3963] ____sys_sendmsg+0x584/0x870 [ 49.140763][ T3963] ___sys_sendmsg+0x214/0x294 [ 49.141991][ T3963] __arm64_sys_sendmsg+0x1ac/0x25c [ 49.143317][ T3963] invoke_syscall+0x98/0x2b8 [ 49.144524][ T3963] el0_svc_common+0x138/0x258 [ 49.145735][ T3963] do_el0_svc+0x58/0x14c [ 49.146859][ T3963] el0_svc+0x7c/0x1f0 [ 49.147942][ T3963] el0t_64_sync_handler+0x84/0xe4 [ 49.149314][ T3963] el0t_64_sync+0x1a0/0x1a4 [ 49.150651][ T3963] [ 49.151225][ T3963] ============================================ [ 49.152705][ T3963] WARNING: possible recursive locking detected [ 49.154240][ T3963] 5.15.126-syzkaller-00092-g24c4de4069cb #0 Tainted: G W [ 49.156336][ T3963] -------------------------------------------- [ 49.157877][ T3963] syz-executor384/3963 is trying to acquire lock: [ 49.159543][ T3963] ffff0000c8a21908 (&sch->q.lock){+...}-{2:2}, at: get_dist_table+0x1f0/0x2a4 [ 49.161918][ T3963] [ 49.161918][ T3963] but task is already holding lock: [ 49.163845][ T3963] ffff0000c8a21908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90 [ 49.166090][ T3963] [ 49.166090][ T3963] other info that might help us debug this: [ 49.168180][ T3963] Possible unsafe locking scenario: [ 49.168180][ T3963] [ 49.170151][ T3963] CPU0 [ 49.170997][ T3963] ---- [ 49.171827][ T3963] lock(&sch->q.lock); [ 49.172883][ T3963] lock(&sch->q.lock); [ 49.173932][ T3963] [ 49.173932][ T3963] *** DEADLOCK *** [ 49.173932][ T3963] [ 49.176019][ T3963] May be due to missing lock nesting notation [ 49.176019][ T3963] [ 49.178153][ T3963] 2 locks held by syz-executor384/3963: [ 49.179592][ T3963] #0: ffff8000169e74a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac [ 49.182113][ T3963] #1: ffff0000c8a21908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90 [ 49.184508][ T3963] [ 49.184508][ T3963] stack backtrace: [ 49.186032][ T3963] CPU: 1 PID: 3963 Comm: syz-executor384 Tainted: G W 5.15.126-syzkaller-00092-g24c4de4069cb #0 [ 49.189071][ T3963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 49.191641][ T3963] Call trace: [ 49.192483][ T3963] dump_backtrace+0x0/0x530 [ 49.193636][ T3963] show_stack+0x2c/0x3c [ 49.194723][ T3963] dump_stack_lvl+0x108/0x170 [ 49.195941][ T3963] dump_stack+0x1c/0x58 [ 49.197058][ T3963] __lock_acquire+0x62b4/0x7620 [ 49.198284][ T3963] lock_acquire+0x240/0x77c [ 49.199384][ T3963] _raw_spin_lock_bh+0x124/0x1c4 [ 49.200614][ T3963] get_dist_table+0x1f0/0x2a4 [ 49.201783][ T3963] netem_change+0x7cc/0x1a90 [ 49.202957][ T3963] netem_init+0x54/0xb8 [ 49.204032][ T3963] qdisc_create+0x6fc/0xf44 [ 49.205200][ T3963] tc_modify_qdisc+0x8dc/0x1344 [ 49.206443][ T3963] rtnetlink_rcv_msg+0xa74/0xdac [ 49.207716][ T3963] netlink_rcv_skb+0x20c/0x3b8 [ 49.208955][ T3963] rtnetlink_rcv+0x28/0x38 [ 49.210075][ T3963] netlink_unicast+0x664/0x938 [ 49.211281][ T3963] netlink_sendmsg+0x844/0xb38 [ 49.212513][ T3963] ____sys_sendmsg+0x584/0x870 [ 49.213786][ T3963] ___sys_sendmsg+0x214/0x294 [ 49.215074][ T3963] __arm64_sys_sendmsg+0x1ac/0x25c [ 49.216377][ T3963] invoke_syscall+0x98/0x2b8 [ 49.217610][ T3963] el0_svc_common+0x138/0x258 [ 49.218832][ T3963] do_el0_svc+0x58/0x14c [ 49.219862][ T3963] el0_svc+0x7c/0x1f0 [ 49.220891][ T3963] el0t_64_sync_handler+0x84/0xe4 [ 49.222221][ T3963] el0t_64_sync+0x1a0/0x1a4