Warning: Permanently added '10.128.1.54' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   36.029625][ T4223] 
[   36.030180][ T4223] ============================================
[   36.031657][ T4223] WARNING: possible recursive locking detected
[   36.033023][ T4223] 6.1.32-syzkaller #0 Not tainted
[   36.034200][ T4223] --------------------------------------------
[   36.035581][ T4223] syz-executor163/4223 is trying to acquire lock:
[   36.037028][ T4223] ffff0000cf68e468 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x114/0x1990
[   36.038952][ T4223] 
[   36.038952][ T4223] but task is already holding lock:
[   36.040611][ T4223] ffff0000cf68e868 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x320/0x468
[   36.042807][ T4223] 
[   36.042807][ T4223] other info that might help us debug this:
[   36.044604][ T4223]  Possible unsafe locking scenario:
[   36.044604][ T4223] 
[   36.046333][ T4223]        CPU0
[   36.047154][ T4223]        ----
[   36.047878][ T4223]   lock(&pipe->mutex/1);
[   36.048931][ T4223]   lock(&pipe->mutex/1);
[   36.049879][ T4223] 
[   36.049879][ T4223]  *** DEADLOCK ***
[   36.049879][ T4223] 
[   36.051706][ T4223]  May be due to missing lock nesting notation
[   36.051706][ T4223] 
[   36.053640][ T4223] 1 lock held by syz-executor163/4223:
[   36.054924][ T4223]  #0: ffff0000cf68e868 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x320/0x468
[   36.057248][ T4223] 
[   36.057248][ T4223] stack backtrace:
[   36.058533][ T4223] CPU: 1 PID: 4223 Comm: syz-executor163 Not tainted 6.1.32-syzkaller #0
[   36.060468][ T4223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
[   36.062848][ T4223] Call trace:
[   36.063586][ T4223]  dump_backtrace+0x1c8/0x1f4
[   36.064602][ T4223]  show_stack+0x2c/0x3c
[   36.065508][ T4223]  dump_stack_lvl+0x108/0x170
[   36.066528][ T4223]  dump_stack+0x1c/0x58
[   36.067477][ T4223]  __lock_acquire+0x6310/0x764c
[   36.068656][ T4223]  lock_acquire+0x26c/0x7cc
[   36.069761][ T4223]  __mutex_lock_common+0x190/0x21a0
[   36.070959][ T4223]  mutex_lock_nested+0x38/0x44
[   36.072071][ T4223]  pipe_write+0x114/0x1990
[   36.073041][ T4223]  do_iter_write+0x534/0x964
[   36.074083][ T4223]  vfs_iter_write+0x88/0xac
[   36.075117][ T4223]  iter_file_splice_write+0x618/0xc48
[   36.076334][ T4223]  do_splice+0xfd0/0x1898
[   36.077354][ T4223]  __arm64_sys_splice+0x50c/0x7fc
[   36.078614][ T4223]  invoke_syscall+0x98/0x2c0
[   36.079830][ T4223]  el0_svc_common+0x138/0x258
[   36.080987][ T4223]  do_el0_svc+0x64/0x218
[   36.082113][ T4223]  el0_svc+0x58/0x168
[   36.083069][ T4223]  el0t_64_sync_handler+0x84/0xf0
[   36.084253][ T4223]  el0t_64_sync+0x18c/0x190