Warning: Permanently added '10.128.0.82' (ED25519) to the list of known hosts. [ 38.975371][ T3964] chnl_net:caif_netlink_parms(): no params data found [ 39.015425][ T3964] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.017239][ T3964] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.019371][ T3964] device bridge_slave_0 entered promiscuous mode [ 39.023694][ T3964] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.025332][ T3964] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.027735][ T3964] device bridge_slave_1 entered promiscuous mode [ 39.043915][ T3964] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.048020][ T3964] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.062161][ T3964] team0: Port device team_slave_0 added [ 39.065282][ T3964] team0: Port device team_slave_1 added [ 39.079317][ T3964] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.080812][ T3964] 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. [ 39.086447][ T3964] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.090916][ T3964] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.092433][ T3964] 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. [ 39.097762][ T3964] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.159967][ T3964] device hsr_slave_0 entered promiscuous mode [ 39.197298][ T3964] device hsr_slave_1 entered promiscuous mode [ 39.331075][ T3964] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.409831][ T3964] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.449107][ T3964] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.500279][ T3964] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.554563][ T3964] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.556259][ T3964] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.558446][ T3964] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.559919][ T3964] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.604663][ T3964] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.612478][ T3552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.616058][ T3552] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.619800][ T3552] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.622419][ T3552] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 39.629707][ T3964] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.635843][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.638739][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.640236][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.647443][ T3552] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.649866][ T3552] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.651570][ T3552] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.660474][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.663651][ T3972] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.668616][ T3550] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.674501][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.681632][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.686008][ T3964] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.700128][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.701780][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.710706][ T3964] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.722958][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.736306][ T3550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.740038][ T3550] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.741973][ T3550] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.745671][ T3964] device veth0_vlan entered promiscuous mode [ 39.753963][ T3964] device veth1_vlan entered promiscuous mode [ 39.769567][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.771742][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.773945][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.779482][ T3964] device veth0_macvtap entered promiscuous mode [ 39.783709][ T3964] device veth1_macvtap entered promiscuous mode [ 39.795258][ T3964] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.797641][ T3550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.800705][ T3550] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 39.805296][ T3964] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.807621][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.811819][ T3964] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.813646][ T3964] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.815563][ T3964] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.817965][ T3964] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 39.845518][ T3964] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209 [ 39.847636][ T3964] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3964, name: syz-executor365 [ 39.849774][ T3964] 2 locks held by syz-executor365/3964: [ 39.851095][ T3964] #0: ffff8000169e7128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac [ 39.853066][ T3964] #1: ffff0000da18d908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90 [ 39.855175][ T3964] Preemption disabled at: [ 39.855187][ T3964] [] netem_change+0x22c/0x1a90 [ 39.857502][ T3964] CPU: 1 PID: 3964 Comm: syz-executor365 Not tainted 5.15.123-syzkaller #0 [ 39.859495][ T3964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 39.861550][ T3964] Call trace: [ 39.862294][ T3964] dump_backtrace+0x0/0x530 [ 39.863266][ T3964] show_stack+0x2c/0x3c [ 39.864241][ T3964] dump_stack_lvl+0x108/0x170 [ 39.865172][ T3964] dump_stack+0x1c/0x58 [ 39.866072][ T3964] ___might_sleep+0x380/0x4dc [ 39.867060][ T3964] __might_sleep+0x98/0xf0 [ 39.867989][ T3964] slab_pre_alloc_hook+0x58/0xe8 [ 39.869105][ T3964] __kmalloc_node+0xbc/0x5b8 [ 39.870121][ T3964] kvmalloc_node+0x88/0x204 [ 39.871063][ T3964] get_dist_table+0x9c/0x2a4 [ 39.872061][ T3964] netem_change+0x7cc/0x1a90 [ 39.873039][ T3964] netem_init+0x54/0xb8 [ 39.873962][ T3964] qdisc_create+0x6fc/0xf44 [ 39.875017][ T3964] tc_modify_qdisc+0x8dc/0x1344 [ 39.876209][ T3964] rtnetlink_rcv_msg+0xa74/0xdac [ 39.877374][ T3964] netlink_rcv_skb+0x20c/0x3b8 [ 39.878337][ T3964] rtnetlink_rcv+0x28/0x38 [ 39.879270][ T3964] netlink_unicast+0x664/0x938 [ 39.880337][ T3964] netlink_sendmsg+0x844/0xb38 [ 39.881296][ T3964] ____sys_sendmsg+0x584/0x870 [ 39.882339][ T3964] ___sys_sendmsg+0x214/0x294 [ 39.883367][ T3964] __arm64_sys_sendmsg+0x1ac/0x25c [ 39.884521][ T3964] invoke_syscall+0x98/0x2b8 [ 39.885510][ T3964] el0_svc_common+0x138/0x258 [ 39.886548][ T3964] do_el0_svc+0x58/0x14c [ 39.887425][ T3964] el0_svc+0x7c/0x1f0 [ 39.888306][ T3964] el0t_64_sync_handler+0x84/0xe4 [ 39.889410][ T3964] el0t_64_sync+0x1a0/0x1a4 [ 39.890493][ T3964] [ 39.890962][ T3964] ============================================ [ 39.892276][ T3964] WARNING: possible recursive locking detected [ 39.893618][ T3964] 5.15.123-syzkaller #0 Tainted: G W [ 39.895035][ T3964] -------------------------------------------- [ 39.896414][ T3964] syz-executor365/3964 is trying to acquire lock: [ 39.897781][ T3964] ffff0000da18d908 (&sch->q.lock){+...}-{2:2}, at: get_dist_table+0x1f0/0x2a4 [ 39.899818][ T3964] [ 39.899818][ T3964] but task is already holding lock: [ 39.901408][ T3964] ffff0000da18d908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90 [ 39.903350][ T3964] [ 39.903350][ T3964] other info that might help us debug this: [ 39.905082][ T3964] Possible unsafe locking scenario: [ 39.905082][ T3964] [ 39.906708][ T3964] CPU0 [ 39.907431][ T3964] ---- [ 39.908237][ T3964] lock(&sch->q.lock); [ 39.909148][ T3964] lock(&sch->q.lock); [ 39.910046][ T3964] [ 39.910046][ T3964] *** DEADLOCK *** [ 39.910046][ T3964] [ 39.911883][ T3964] May be due to missing lock nesting notation [ 39.911883][ T3964] [ 39.913673][ T3964] 2 locks held by syz-executor365/3964: [ 39.914832][ T3964] #0: ffff8000169e7128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac [ 39.916858][ T3964] #1: ffff0000da18d908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90 [ 39.918902][ T3964] [ 39.918902][ T3964] stack backtrace: [ 39.920142][ T3964] CPU: 1 PID: 3964 Comm: syz-executor365 Tainted: G W 5.15.123-syzkaller #0 [ 39.922188][ T3964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 39.924369][ T3964] Call trace: [ 39.925082][ T3964] dump_backtrace+0x0/0x530 [ 39.926120][ T3964] show_stack+0x2c/0x3c [ 39.927041][ T3964] dump_stack_lvl+0x108/0x170 [ 39.928137][ T3964] dump_stack+0x1c/0x58 [ 39.929036][ T3964] __lock_acquire+0x62b4/0x7620 [ 39.930081][ T3964] lock_acquire+0x240/0x77c [ 39.931061][ T3964] _raw_spin_lock_bh+0x124/0x1c4 [ 39.932138][ T3964] get_dist_table+0x1f0/0x2a4 [ 39.933202][ T3964] netem_change+0x7cc/0x1a90 [ 39.934252][ T3964] netem_init+0x54/0xb8 [ 39.935158][ T3964] qdisc_create+0x6fc/0xf44 [ 39.936093][ T3964] tc_modify_qdisc+0x8dc/0x1344 [ 39.937104][ T3964] rtnetlink_rcv_msg+0xa74/0xdac [ 39.938154][ T3964] netlink_rcv_skb+0x20c/0x3b8 [ 39.939183][ T3964] rtnetlink_rcv+0x28/0x38 [ 39.940154][ T3964] netlink_unicast+0x664/0x938 [ 39.941114][ T3964] netlink_sendmsg+0x844/0xb38 [ 39.942123][ T3964] ____sys_sendmsg+0x584/0x870 [ 39.943219][ T3964] ___sys_sendmsg+0x214/0x294 [ 39.944216][ T3964] __arm64_sys_sendmsg+0x1ac/0x25c [ 39.945400][ T3964] invoke_syscall+0x98/0x2b8 [ 39.946392][ T3964] el0_svc_common+0x138/0x258 [ 39.947412][ T3964] do_el0_svc+0x58/0x14c [ 39.948270][ T3964] el0_svc+0x7c/0x1f0 [ 39.949142][ T3964] el0t_64_sync_handler+0x84/0xe4 [ 39.950231][ T3964] el0t_64_sync+0x1a0/0x1a4