Warning: Permanently added '10.128.0.247' (ED25519) to the list of known hosts.
executing program
[   32.428824][ T4218] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274
[   32.430902][ T4218] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4218, name: syz-executor169
[   32.432858][ T4218] preempt_count: 201, expected: 0
[   32.433895][ T4218] RCU nest depth: 0, expected: 0
[   32.435080][ T4218] 2 locks held by syz-executor169/4218:
[   32.436238][ T4218]  #0: ffff800017b9e948 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e8/0xd94
[   32.438182][ T4218]  #1: ffff0000dc012108 (&sch->q.lock){+...}-{2:2}, at: sch_tree_lock+0x120/0x1d4
[   32.440185][ T4218] Preemption disabled at:
[   32.440195][ T4218] [<ffff8000106c0d88>] sch_tree_lock+0x120/0x1d4
[   32.442358][ T4218] CPU: 0 PID: 4218 Comm: syz-executor169 Not tainted 6.1.38-syzkaller #0
[   32.444214][ T4218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
[   32.446425][ T4218] Call trace:
[   32.447099][ T4218]  dump_backtrace+0x1c8/0x1f4
[   32.448080][ T4218]  show_stack+0x2c/0x3c
[   32.448955][ T4218]  dump_stack_lvl+0x108/0x170
[   32.449936][ T4218]  dump_stack+0x1c/0x5c
[   32.450856][ T4218]  __might_resched+0x37c/0x4d8
[   32.451915][ T4218]  __might_sleep+0x90/0xe4
[   32.452778][ T4218]  __kmem_cache_alloc_node+0x74/0x388
[   32.453892][ T4218]  __kmalloc_node+0xcc/0x1d0
[   32.454872][ T4218]  kvmalloc_node+0x84/0x1e4
[   32.455798][ T4218]  get_dist_table+0xa0/0x354
[   32.456728][ T4218]  netem_change+0x754/0x1900
[   32.457694][ T4218]  netem_init+0x54/0xb8
[   32.458580][ T4218]  qdisc_create+0x70c/0xe64
[   32.459566][ T4218]  tc_modify_qdisc+0x9f0/0x1840
[   32.460589][ T4218]  rtnetlink_rcv_msg+0x72c/0xd94
[   32.461595][ T4218]  netlink_rcv_skb+0x20c/0x3b8
[   32.462618][ T4218]  rtnetlink_rcv+0x28/0x38
[   32.463583][ T4218]  netlink_unicast+0x660/0x8d4
[   32.464558][ T4218]  netlink_sendmsg+0x834/0xb18
[   32.465562][ T4218]  ____sys_sendmsg+0x558/0x844
[   32.466532][ T4218]  __sys_sendmsg+0x26c/0x33c
[   32.467539][ T4218]  __arm64_sys_sendmsg+0x80/0x94
[   32.468583][ T4218]  invoke_syscall+0x98/0x2c0
[   32.469555][ T4218]  el0_svc_common+0x138/0x258
[   32.470564][ T4218]  do_el0_svc+0x64/0x218
[   32.471458][ T4218]  el0_svc+0x58/0x168
[   32.472303][ T4218]  el0t_64_sync_handler+0x84/0xf0
[   32.473405][ T4218]  el0t_64_sync+0x18c/0x190
[   32.474496][ T4218] 
[   32.475016][ T4218] ============================================
[   32.476231][ T4218] WARNING: possible recursive locking detected
[   32.477498][ T4218] 6.1.38-syzkaller #0 Tainted: G        W         
[   32.478885][ T4218] --------------------------------------------
[   32.480145][ T4218] syz-executor169/4218 is trying to acquire lock:
[   32.481466][ T4218] ffff0000dc012108 (&sch->q.lock){+...}-{2:2}, at: get_dist_table+0x240/0x354
[   32.483278][ T4218] 
[   32.483278][ T4218] but task is already holding lock:
[   32.484821][ T4218] ffff0000dc012108 (&sch->q.lock){+...}-{2:2}, at: sch_tree_lock+0x120/0x1d4
[   32.486668][ T4218] 
[   32.486668][ T4218] other info that might help us debug this:
[   32.488385][ T4218]  Possible unsafe locking scenario:
[   32.488385][ T4218] 
[   32.490024][ T4218]        CPU0
[   32.490666][ T4218]        ----
[   32.491274][ T4218]   lock(&sch->q.lock);
[   32.492214][ T4218]   lock(&sch->q.lock);
[   32.493044][ T4218] 
[   32.493044][ T4218]  *** DEADLOCK ***
[   32.493044][ T4218] 
[   32.494743][ T4218]  May be due to missing lock nesting notation
[   32.494743][ T4218] 
[   32.496406][ T4218] 2 locks held by syz-executor169/4218:
[   32.497536][ T4218]  #0: ffff800017b9e948 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e8/0xd94
[   32.499493][ T4218]  #1: ffff0000dc012108 (&sch->q.lock){+...}-{2:2}, at: sch_tree_lock+0x120/0x1d4
[   32.501429][ T4218] 
[   32.501429][ T4218] stack backtrace:
[   32.502666][ T4218] CPU: 0 PID: 4218 Comm: syz-executor169 Tainted: G        W          6.1.38-syzkaller #0
[   32.504710][ T4218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
[   32.506822][ T4218] Call trace:
[   32.507505][ T4218]  dump_backtrace+0x1c8/0x1f4
[   32.508445][ T4218]  show_stack+0x2c/0x3c
[   32.509299][ T4218]  dump_stack_lvl+0x108/0x170
[   32.510298][ T4218]  dump_stack+0x1c/0x5c
[   32.511147][ T4218]  __lock_acquire+0x6310/0x764c
[   32.512136][ T4218]  lock_acquire+0x26c/0x7cc
[   32.513054][ T4218]  _raw_spin_lock_bh+0x54/0x6c
[   32.514038][ T4218]  get_dist_table+0x240/0x354
[   32.515037][ T4218]  netem_change+0x754/0x1900
[   32.516099][ T4218]  netem_init+0x54/0xb8
[   32.516927][ T4218]  qdisc_create+0x70c/0xe64
[   32.517855][ T4218]  tc_modify_qdisc+0x9f0/0x1840
[   32.518809][ T4218]  rtnetlink_rcv_msg+0x72c/0xd94
[   32.519787][ T4218]  netlink_rcv_skb+0x20c/0x3b8
[   32.520817][ T4218]  rtnetlink_rcv+0x28/0x38
[   32.521728][ T4218]  netlink_unicast+0x660/0x8d4
[   32.522678][ T4218]  netlink_sendmsg+0x834/0xb18
[   32.523747][ T4218]  ____sys_sendmsg+0x558/0x844
[   32.524742][ T4218]  __sys_sendmsg+0x26c/0x33c
[   32.525693][ T4218]  __arm64_sys_sendmsg+0x80/0x94
[   32.526745][ T4218]  invoke_syscall+0x98/0x2c0
[   32.527659][ T4218]  el0_svc_common+0x138/0x258
[   32.528616][ T4218]  do_el0_svc+0x64/0x218
[   32.529483][ T4218]  el0_svc+0x58/0x168
[   32.530303][ T4218]  el0t_64_sync_handler+0x84/0xf0
[   32.531314][ T4218]  el0t_64_sync+0x18c/0x190