Warning: Permanently added '10.128.1.174' (ED25519) to the list of known hosts. [ 36.113092][ T4217] chnl_net:caif_netlink_parms(): no params data found [ 36.145203][ T4217] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.147017][ T4217] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.149250][ T4217] device bridge_slave_0 entered promiscuous mode [ 36.153004][ T4217] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.154620][ T4217] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.157033][ T4217] device bridge_slave_1 entered promiscuous mode [ 36.170865][ T4217] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 36.174577][ T4217] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 36.188444][ T4217] team0: Port device team_slave_0 added [ 36.191236][ T4217] team0: Port device team_slave_1 added [ 36.202366][ T4217] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 36.204005][ T4217] 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. [ 36.210160][ T4217] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 36.214230][ T4217] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 36.215792][ T4217] 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. [ 36.221632][ T4217] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 36.278476][ T4217] device hsr_slave_0 entered promiscuous mode [ 36.316742][ T4217] device hsr_slave_1 entered promiscuous mode [ 36.429171][ T4217] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 36.480020][ T4217] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 36.529818][ T4217] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 36.568839][ T4217] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 36.622705][ T4217] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.624383][ T4217] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.626273][ T4217] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.627918][ T4217] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.663454][ T4217] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.674470][ T4217] 8021q: adding VLAN 0 to HW filter on device team0 [ 36.676962][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 36.680436][ T24] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.683190][ T24] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.685607][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 36.694102][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 36.696345][ T4224] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.698117][ T4224] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.718731][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 36.721361][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.722928][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.725522][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 36.728344][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 36.730417][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 36.732420][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 36.735285][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 36.740112][ T4217] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 36.752055][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 36.753749][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 36.760916][ T4217] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 36.772713][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 36.784006][ T4217] device veth0_vlan entered promiscuous mode [ 36.787143][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 36.789349][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 36.791231][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 36.797127][ T4217] device veth1_vlan entered promiscuous mode [ 36.812671][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 36.814722][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 36.817291][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 36.820978][ T4217] device veth0_macvtap entered promiscuous mode [ 36.824777][ T4217] device veth1_macvtap entered promiscuous mode [ 36.834592][ T4217] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 36.836260][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 36.840371][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 36.845334][ T4217] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 36.848133][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 36.851812][ T4217] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 36.853749][ T4217] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 36.855550][ T4217] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 36.858454][ T4217] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 36.882604][ T4217] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 [ 36.884751][ T4217] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4217, name: syz-executor107 [ 36.886840][ T4217] preempt_count: 201, expected: 0 [ 36.888038][ T4217] RCU nest depth: 0, expected: 0 [ 36.889100][ T4217] 2 locks held by syz-executor107/4217: [ 36.890297][ T4217] #0: ffff800017e6fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e8/0xd94 [ 36.892379][ T4217] #1: ffff0000d16a3908 (&sch->q.lock){+...}-{2:2}, at: sch_tree_lock+0x120/0x1d4 [ 36.894416][ T4217] Preemption disabled at: [ 36.894428][ T4217] [] sch_tree_lock+0x120/0x1d4 [ 36.896726][ T4217] CPU: 0 PID: 4217 Comm: syz-executor107 Not tainted 6.1.45-syzkaller #0 [ 36.898456][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 36.900618][ T4217] Call trace: [ 36.901306][ T4217] dump_backtrace+0x1c8/0x1f4 [ 36.902297][ T4217] show_stack+0x2c/0x3c [ 36.903239][ T4217] dump_stack_lvl+0x108/0x170 [ 36.904265][ T4217] dump_stack+0x1c/0x58 [ 36.905124][ T4217] __might_resched+0x37c/0x4d8 [ 36.906143][ T4217] __might_sleep+0x90/0xe4 [ 36.907125][ T4217] __kmem_cache_alloc_node+0x74/0x388 [ 36.908403][ T4217] __kmalloc_node+0xcc/0x1d0 [ 36.909400][ T4217] kvmalloc_node+0x84/0x1e4 [ 36.910455][ T4217] get_dist_table+0xa0/0x354 [ 36.911421][ T4217] netem_change+0x754/0x1900 [ 36.912461][ T4217] netem_init+0x54/0xb8 [ 36.913267][ T4217] qdisc_create+0x70c/0xe64 [ 36.914276][ T4217] tc_modify_qdisc+0x9f0/0x1840 [ 36.915390][ T4217] rtnetlink_rcv_msg+0x72c/0xd94 [ 36.916494][ T4217] netlink_rcv_skb+0x20c/0x3b8 [ 36.917562][ T4217] rtnetlink_rcv+0x28/0x38 [ 36.918499][ T4217] netlink_unicast+0x660/0x8d4 [ 36.919523][ T4217] netlink_sendmsg+0x834/0xb18 [ 36.920595][ T4217] ____sys_sendmsg+0x558/0x844 [ 36.921595][ T4217] __sys_sendmsg+0x26c/0x33c [ 36.922656][ T4217] __arm64_sys_sendmsg+0x80/0x94 [ 36.923755][ T4217] invoke_syscall+0x98/0x2c0 [ 36.924741][ T4217] el0_svc_common+0x138/0x258 [ 36.925755][ T4217] do_el0_svc+0x64/0x218 [ 36.926667][ T4217] el0_svc+0x58/0x168 [ 36.927545][ T4217] el0t_64_sync_handler+0x84/0xf0 [ 36.928699][ T4217] el0t_64_sync+0x18c/0x190 [ 36.929742][ T4217] [ 36.930257][ T4217] ============================================ [ 36.931556][ T4217] WARNING: possible recursive locking detected [ 36.932939][ T4217] 6.1.45-syzkaller #0 Tainted: G W [ 36.934369][ T4217] -------------------------------------------- [ 36.935688][ T4217] syz-executor107/4217 is trying to acquire lock: [ 36.937128][ T4217] ffff0000d16a3908 (&sch->q.lock){+...}-{2:2}, at: get_dist_table+0x240/0x354 [ 36.939070][ T4217] [ 36.939070][ T4217] but task is already holding lock: [ 36.940692][ T4217] ffff0000d16a3908 (&sch->q.lock){+...}-{2:2}, at: sch_tree_lock+0x120/0x1d4 [ 36.942619][ T4217] [ 36.942619][ T4217] other info that might help us debug this: [ 36.944472][ T4217] Possible unsafe locking scenario: [ 36.944472][ T4217] [ 36.946082][ T4217] CPU0 [ 36.946776][ T4217] ---- [ 36.947475][ T4217] lock(&sch->q.lock); [ 36.948359][ T4217] lock(&sch->q.lock); [ 36.949248][ T4217] [ 36.949248][ T4217] *** DEADLOCK *** [ 36.949248][ T4217] [ 36.951110][ T4217] May be due to missing lock nesting notation [ 36.951110][ T4217] [ 36.952803][ T4217] 2 locks held by syz-executor107/4217: [ 36.954051][ T4217] #0: ffff800017e6fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e8/0xd94 [ 36.956081][ T4217] #1: ffff0000d16a3908 (&sch->q.lock){+...}-{2:2}, at: sch_tree_lock+0x120/0x1d4 [ 36.958170][ T4217] [ 36.958170][ T4217] stack backtrace: [ 36.959444][ T4217] CPU: 0 PID: 4217 Comm: syz-executor107 Tainted: G W 6.1.45-syzkaller #0 [ 36.961515][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 36.963667][ T4217] Call trace: [ 36.964340][ T4217] dump_backtrace+0x1c8/0x1f4 [ 36.965384][ T4217] show_stack+0x2c/0x3c [ 36.966307][ T4217] dump_stack_lvl+0x108/0x170 [ 36.967283][ T4217] dump_stack+0x1c/0x58 [ 36.968189][ T4217] __lock_acquire+0x6310/0x764c [ 36.969227][ T4217] lock_acquire+0x26c/0x7cc [ 36.970269][ T4217] _raw_spin_lock_bh+0x54/0x6c [ 36.971279][ T4217] get_dist_table+0x240/0x354 [ 36.972207][ T4217] netem_change+0x754/0x1900 [ 36.973320][ T4217] netem_init+0x54/0xb8 [ 36.974244][ T4217] qdisc_create+0x70c/0xe64 [ 36.975156][ T4217] tc_modify_qdisc+0x9f0/0x1840 [ 36.976201][ T4217] rtnetlink_rcv_msg+0x72c/0xd94 [ 36.977262][ T4217] netlink_rcv_skb+0x20c/0x3b8 [ 36.978296][ T4217] rtnetlink_rcv+0x28/0x38 [ 36.979359][ T4217] netlink_unicast+0x660/0x8d4 [ 36.980444][ T4217] netlink_sendmsg+0x834/0xb18 [ 36.981458][ T4217] ____sys_sendmsg+0x558/0x844 [ 36.982551][ T4217] __sys_sendmsg+0x26c/0x33c [ 36.983571][ T4217] __arm64_sys_sendmsg+0x80/0x94 [ 36.984612][ T4217] invoke_syscall+0x98/0x2c0 [ 36.985709][ T4217] el0_svc_common+0x138/0x258 [ 36.986743][ T4217] do_el0_svc+0x64/0x218 [ 36.987689][ T4217] el0_svc+0x58/0x168 [ 36.988488][ T4217] el0t_64_sync_handler+0x84/0xf0 [ 36.989579][ T4217] el0t_64_sync+0x18c/0x190