Warning: Permanently added '10.128.0.165' (ED25519) to the list of known hosts.
executing program
[ 41.653019][ T3962] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209
[ 41.655699][ T3962] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3962, name: syz-executor548
[ 41.658123][ T3962] 2 locks held by syz-executor548/3962:
[ 41.659575][ T3962] #0: ffff8000169e74a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac
[ 41.662067][ T3962] #1: ffff0000d50d6108 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90
[ 41.664811][ T3962] Preemption disabled at:
[ 41.664824][ T3962] [<ffff800010045e3c>] netem_change+0x22c/0x1a90
[ 41.667633][ T3962] CPU: 1 PID: 3962 Comm: syz-executor548 Not tainted 5.15.126-syzkaller-00092-g24c4de4069cb #0
[ 41.670202][ T3962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
[ 41.672701][ T3962] Call trace:
[ 41.673518][ T3962] dump_backtrace+0x0/0x530
[ 41.674725][ T3962] show_stack+0x2c/0x3c
[ 41.675815][ T3962] dump_stack_lvl+0x108/0x170
[ 41.677021][ T3962] dump_stack+0x1c/0x58
[ 41.678098][ T3962] ___might_sleep+0x380/0x4dc
[ 41.679317][ T3962] __might_sleep+0x98/0xf0
[ 41.680487][ T3962] slab_pre_alloc_hook+0x58/0xe8
[ 41.681787][ T3962] __kmalloc_node+0xbc/0x5b8
[ 41.682989][ T3962] kvmalloc_node+0x88/0x204
[ 41.684159][ T3962] get_dist_table+0x9c/0x2a4
[ 41.685390][ T3962] netem_change+0x7cc/0x1a90
[ 41.686578][ T3962] netem_init+0x54/0xb8
[ 41.687658][ T3962] qdisc_create+0x6fc/0xf44
[ 41.688830][ T3962] tc_modify_qdisc+0x8dc/0x1344
[ 41.690089][ T3962] rtnetlink_rcv_msg+0xa74/0xdac
[ 41.691380][ T3962] netlink_rcv_skb+0x20c/0x3b8
[ 41.692584][ T3962] rtnetlink_rcv+0x28/0x38
[ 41.693722][ T3962] netlink_unicast+0x664/0x938
[ 41.694951][ T3962] netlink_sendmsg+0x844/0xb38
[ 41.696194][ T3962] ____sys_sendmsg+0x584/0x870
[ 41.697432][ T3962] ___sys_sendmsg+0x214/0x294
[ 41.698614][ T3962] __arm64_sys_sendmsg+0x1ac/0x25c
[ 41.699977][ T3962] invoke_syscall+0x98/0x2b8
[ 41.701173][ T3962] el0_svc_common+0x138/0x258
[ 41.702417][ T3962] do_el0_svc+0x58/0x14c
[ 41.703508][ T3962] el0_svc+0x7c/0x1f0
[ 41.704562][ T3962] el0t_64_sync_handler+0x84/0xe4
[ 41.705874][ T3962] el0t_64_sync+0x1a0/0x1a4
[ 41.707120][ T3962]
[ 41.707711][ T3962] ============================================
[ 41.709297][ T3962] WARNING: possible recursive locking detected
[ 41.710826][ T3962] 5.15.126-syzkaller-00092-g24c4de4069cb #0 Tainted: G W
[ 41.712898][ T3962] --------------------------------------------
[ 41.714510][ T3962] syz-executor548/3962 is trying to acquire lock:
[ 41.716198][ T3962] ffff0000d50d6108 (&sch->q.lock){+...}-{2:2}, at: get_dist_table+0x1f0/0x2a4
[ 41.718501][ T3962]
[ 41.718501][ T3962] but task is already holding lock:
[ 41.720438][ T3962] ffff0000d50d6108 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90
[ 41.722812][ T3962]
[ 41.722812][ T3962] other info that might help us debug this:
[ 41.724990][ T3962] Possible unsafe locking scenario:
[ 41.724990][ T3962]
[ 41.726942][ T3962] CPU0
[ 41.727799][ T3962] ----
[ 41.728643][ T3962] lock(&sch->q.lock);
[ 41.729738][ T3962] lock(&sch->q.lock);
[ 41.730821][ T3962]
[ 41.730821][ T3962] *** DEADLOCK ***
[ 41.730821][ T3962]
[ 41.732996][ T3962] May be due to missing lock nesting notation
[ 41.732996][ T3962]
[ 41.735236][ T3962] 2 locks held by syz-executor548/3962:
[ 41.736705][ T3962] #0: ffff8000169e74a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac
[ 41.739183][ T3962] #1: ffff0000d50d6108 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90
[ 41.741612][ T3962]
[ 41.741612][ T3962] stack backtrace:
[ 41.743127][ T3962] CPU: 1 PID: 3962 Comm: syz-executor548 Tainted: G W 5.15.126-syzkaller-00092-g24c4de4069cb #0
[ 41.746247][ T3962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
[ 41.748894][ T3962] Call trace:
[ 41.749764][ T3962] dump_backtrace+0x0/0x530
[ 41.750963][ T3962] show_stack+0x2c/0x3c
[ 41.752032][ T3962] dump_stack_lvl+0x108/0x170
[ 41.753275][ T3962] dump_stack+0x1c/0x58
[ 41.754380][ T3962] __lock_acquire+0x62b4/0x7620
[ 41.755663][ T3962] lock_acquire+0x240/0x77c
[ 41.756871][ T3962] _raw_spin_lock_bh+0x124/0x1c4
[ 41.758158][ T3962] get_dist_table+0x1f0/0x2a4
[ 41.759400][ T3962] netem_change+0x7cc/0x1a90
[ 41.760595][ T3962] netem_init+0x54/0xb8
[ 41.761677][ T3962] qdisc_create+0x6fc/0xf44
[ 41.762850][ T3962] tc_modify_qdisc+0x8dc/0x1344
[ 41.764114][ T3962] rtnetlink_rcv_msg+0xa74/0xdac
[ 41.765376][ T3962] netlink_rcv_skb+0x20c/0x3b8
[ 41.766609][ T3962] rtnetlink_rcv+0x28/0x38
[ 41.767787][ T3962] netlink_unicast+0x664/0x938
[ 41.769054][ T3962] netlink_sendmsg+0x844/0xb38
[ 41.770270][ T3962] ____sys_sendmsg+0x584/0x870
[ 41.771526][ T3962] ___sys_sendmsg+0x214/0x294
[ 41.772735][ T3962] __arm64_sys_sendmsg+0x1ac/0x25c
[ 41.774046][ T3962] invoke_syscall+0x98/0x2b8
[ 41.775276][ T3962] el0_svc_common+0x138/0x258
[ 41.776498][ T3962] do_el0_svc+0x58/0x14c
[ 41.777604][ T3962] el0_svc+0x7c/0x1f0
[ 41.778613][ T3962] el0t_64_sync_handler+0x84/0xe4
[ 41.779870][ T3962] el0t_64_sync+0x1a0/0x1a4