Warning: Permanently added '10.128.0.178' (ED25519) to the list of known hosts.
executing program
[   34.108219][ T4221] 
[   34.108828][ T4221] ============================================
[   34.110156][ T4221] WARNING: possible recursive locking detected
[   34.111461][ T4221] 6.1.83-syzkaller #0 Not tainted
[   34.112543][ T4221] --------------------------------------------
[   34.113938][ T4221] syz-executor124/4221 is trying to acquire lock:
[   34.115340][ T4221] ffff0000d8fe6c68 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x114/0x1990
[   34.117251][ T4221] 
[   34.117251][ T4221] but task is already holding lock:
[   34.118767][ T4221] ffff0000d8fe7068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_lock+0x68/0x98
[   34.120847][ T4221] 
[   34.120847][ T4221] other info that might help us debug this:
[   34.122729][ T4221]  Possible unsafe locking scenario:
[   34.122729][ T4221] 
[   34.124418][ T4221]        CPU0
[   34.125229][ T4221]        ----
[   34.125969][ T4221]   lock(&pipe->mutex/1);
[   34.126963][ T4221]   lock(&pipe->mutex/1);
[   34.127976][ T4221] 
[   34.127976][ T4221]  *** DEADLOCK ***
[   34.127976][ T4221] 
[   34.129874][ T4221]  May be due to missing lock nesting notation
[   34.129874][ T4221] 
[   34.131707][ T4221] 1 lock held by syz-executor124/4221:
[   34.132891][ T4221]  #0: ffff0000d8fe7068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_lock+0x68/0x98
[   34.134958][ T4221] 
[   34.134958][ T4221] stack backtrace:
[   34.136326][ T4221] CPU: 1 PID: 4221 Comm: syz-executor124 Not tainted 6.1.83-syzkaller #0
[   34.138140][ T4221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[   34.140379][ T4221] Call trace:
[   34.141065][ T4221]  dump_backtrace+0x1c8/0x1f4
[   34.142139][ T4221]  show_stack+0x2c/0x3c
[   34.143034][ T4221]  dump_stack_lvl+0x108/0x170
[   34.144055][ T4221]  dump_stack+0x1c/0x5c
[   34.145000][ T4221]  __lock_acquire+0x6310/0x7680
[   34.146052][ T4221]  lock_acquire+0x26c/0x7cc
[   34.147032][ T4221]  __mutex_lock_common+0x190/0x21a0
[   34.148190][ T4221]  mutex_lock_nested+0x38/0x44
[   34.149295][ T4221]  pipe_write+0x114/0x1990
[   34.150262][ T4221]  do_iter_write+0x534/0x964
[   34.151202][ T4221]  vfs_iter_write+0x88/0xac
[   34.152150][ T4221]  iter_file_splice_write+0x62c/0xc5c
[   34.153313][ T4221]  do_splice+0xfd0/0x1898
[   34.154180][ T4221]  __arm64_sys_splice+0x50c/0x7fc
[   34.155307][ T4221]  invoke_syscall+0x98/0x2c0
[   34.156345][ T4221]  el0_svc_common+0x138/0x258
[   34.157408][ T4221]  do_el0_svc+0x64/0x218
[   34.158362][ T4221]  el0_svc+0x58/0x168
[   34.159233][ T4221]  el0t_64_sync_handler+0x84/0xf0
[   34.160331][ T4221]  el0t_64_sync+0x18c/0x190