Warning: Permanently added '10.128.10.1' (ED25519) to the list of known hosts.
executing program
[ 45.450613][ T3967] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209
[ 45.453364][ T3967] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3967, name: syz-executor154
[ 45.455783][ T3967] 2 locks held by syz-executor154/3967:
[ 45.457175][ T3967] #0: ffff8000169e74a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac
[ 45.459674][ T3967] #1: ffff0000c885d908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90
[ 45.462093][ T3967] Preemption disabled at:
[ 45.462105][ T3967] [<ffff800010045e3c>] netem_change+0x22c/0x1a90
[ 45.464942][ T3967] CPU: 1 PID: 3967 Comm: syz-executor154 Not tainted 5.15.126-syzkaller-00092-g24c4de4069cb #0
[ 45.467598][ T3967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
[ 45.470192][ T3967] Call trace:
[ 45.470999][ T3967] dump_backtrace+0x0/0x530
[ 45.472163][ T3967] show_stack+0x2c/0x3c
[ 45.473208][ T3967] dump_stack_lvl+0x108/0x170
[ 45.474424][ T3967] dump_stack+0x1c/0x58
[ 45.475486][ T3967] ___might_sleep+0x380/0x4dc
[ 45.476709][ T3967] __might_sleep+0x98/0xf0
[ 45.477861][ T3967] slab_pre_alloc_hook+0x58/0xe8
[ 45.479186][ T3967] __kmalloc_node+0xbc/0x5b8
[ 45.480371][ T3967] kvmalloc_node+0x88/0x204
[ 45.481554][ T3967] get_dist_table+0x9c/0x2a4
[ 45.482737][ T3967] netem_change+0x7cc/0x1a90
[ 45.483945][ T3967] netem_init+0x54/0xb8
[ 45.485041][ T3967] qdisc_create+0x6fc/0xf44
[ 45.486236][ T3967] tc_modify_qdisc+0x8dc/0x1344
[ 45.487484][ T3967] rtnetlink_rcv_msg+0xa74/0xdac
[ 45.488811][ T3967] netlink_rcv_skb+0x20c/0x3b8
[ 45.490066][ T3967] rtnetlink_rcv+0x28/0x38
[ 45.491244][ T3967] netlink_unicast+0x664/0x938
[ 45.492504][ T3967] netlink_sendmsg+0x844/0xb38
[ 45.493731][ T3967] ____sys_sendmsg+0x584/0x870
[ 45.494939][ T3967] ___sys_sendmsg+0x214/0x294
[ 45.496122][ T3967] __arm64_sys_sendmsg+0x1ac/0x25c
[ 45.497436][ T3967] invoke_syscall+0x98/0x2b8
[ 45.498680][ T3967] el0_svc_common+0x138/0x258
[ 45.499899][ T3967] do_el0_svc+0x58/0x14c
[ 45.501016][ T3967] el0_svc+0x7c/0x1f0
[ 45.502057][ T3967] el0t_64_sync_handler+0x84/0xe4
[ 45.503365][ T3967] el0t_64_sync+0x1a0/0x1a4
[ 45.504601][ T3967]
[ 45.505174][ T3967] ============================================
[ 45.506733][ T3967] WARNING: possible recursive locking detected
[ 45.508256][ T3967] 5.15.126-syzkaller-00092-g24c4de4069cb #0 Tainted: G W
[ 45.510331][ T3967] --------------------------------------------
[ 45.511900][ T3967] syz-executor154/3967 is trying to acquire lock:
[ 45.513576][ T3967] ffff0000c885d908 (&sch->q.lock){+...}-{2:2}, at: get_dist_table+0x1f0/0x2a4
[ 45.515985][ T3967]
[ 45.515985][ T3967] but task is already holding lock:
[ 45.517965][ T3967] ffff0000c885d908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90
[ 45.520348][ T3967]
[ 45.520348][ T3967] other info that might help us debug this:
[ 45.522553][ T3967] Possible unsafe locking scenario:
[ 45.522553][ T3967]
[ 45.524525][ T3967] CPU0
[ 45.525398][ T3967] ----
[ 45.526233][ T3967] lock(&sch->q.lock);
[ 45.527270][ T3967] lock(&sch->q.lock);
[ 45.528346][ T3967]
[ 45.528346][ T3967] *** DEADLOCK ***
[ 45.528346][ T3967]
[ 45.530494][ T3967] May be due to missing lock nesting notation
[ 45.530494][ T3967]
[ 45.532628][ T3967] 2 locks held by syz-executor154/3967:
[ 45.534057][ T3967] #0: ffff8000169e74a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac
[ 45.536493][ T3967] #1: ffff0000c885d908 (&sch->q.lock){+...}-{2:2}, at: netem_change+0x22c/0x1a90
[ 45.538930][ T3967]
[ 45.538930][ T3967] stack backtrace:
[ 45.540467][ T3967] CPU: 1 PID: 3967 Comm: syz-executor154 Tainted: G W 5.15.126-syzkaller-00092-g24c4de4069cb #0
[ 45.543614][ T3967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
[ 45.546289][ T3967] Call trace:
[ 45.547156][ T3967] dump_backtrace+0x0/0x530
[ 45.548313][ T3967] show_stack+0x2c/0x3c
[ 45.549381][ T3967] dump_stack_lvl+0x108/0x170
[ 45.550575][ T3967] dump_stack+0x1c/0x58
[ 45.551637][ T3967] __lock_acquire+0x62b4/0x7620
[ 45.552923][ T3967] lock_acquire+0x240/0x77c
[ 45.554153][ T3967] _raw_spin_lock_bh+0x124/0x1c4
[ 45.555444][ T3967] get_dist_table+0x1f0/0x2a4
[ 45.556653][ T3967] netem_change+0x7cc/0x1a90
[ 45.557921][ T3967] netem_init+0x54/0xb8
[ 45.559019][ T3967] qdisc_create+0x6fc/0xf44
[ 45.560233][ T3967] tc_modify_qdisc+0x8dc/0x1344
[ 45.561534][ T3967] rtnetlink_rcv_msg+0xa74/0xdac
[ 45.562920][ T3967] netlink_rcv_skb+0x20c/0x3b8
[ 45.564245][ T3967] rtnetlink_rcv+0x28/0x38
[ 45.565418][ T3967] netlink_unicast+0x664/0x938
[ 45.566661][ T3967] netlink_sendmsg+0x844/0xb38
[ 45.567923][ T3967] ____sys_sendmsg+0x584/0x870
[ 45.569152][ T3967] ___sys_sendmsg+0x214/0x294
[ 45.570343][ T3967] __arm64_sys_sendmsg+0x1ac/0x25c
[ 45.571673][ T3967] invoke_syscall+0x98/0x2b8
[ 45.572855][ T3967] el0_svc_common+0x138/0x258
[ 45.574073][ T3967] do_el0_svc+0x58/0x14c
[ 45.575159][ T3967] el0_svc+0x7c/0x1f0
[ 45.576208][ T3967] el0t_64_sync_handler+0x84/0xe4
[ 45.577516][ T3967] el0t_64_sync+0x1a0/0x1a4