Warning: Permanently added '10.128.0.145' (ED25519) to the list of known hosts.
executing program
[   35.426909][ T4221] 
[   35.427591][ T4221] ============================================
[   35.429139][ T4221] WARNING: possible recursive locking detected
[   35.430753][ T4221] 6.1.82-syzkaller #0 Not tainted
[   35.432138][ T4221] --------------------------------------------
[   35.433798][ T4221] syz-executor326/4221 is trying to acquire lock:
[   35.435465][ T4221] ffff0000c9110468 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x114/0x1990
[   35.437808][ T4221] 
[   35.437808][ T4221] but task is already holding lock:
[   35.439732][ T4221] ffff0000c9110068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x320/0x468
[   35.442281][ T4221] 
[   35.442281][ T4221] other info that might help us debug this:
[   35.444392][ T4221]  Possible unsafe locking scenario:
[   35.444392][ T4221] 
[   35.446261][ T4221]        CPU0
[   35.447103][ T4221]        ----
[   35.447955][ T4221]   lock(&pipe->mutex/1);
[   35.449059][ T4221]   lock(&pipe->mutex/1);
[   35.450224][ T4221] 
[   35.450224][ T4221]  *** DEADLOCK ***
[   35.450224][ T4221] 
[   35.452348][ T4221]  May be due to missing lock nesting notation
[   35.452348][ T4221] 
[   35.454580][ T4221] 1 lock held by syz-executor326/4221:
[   35.456026][ T4221]  #0: ffff0000c9110068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x320/0x468
[   35.458702][ T4221] 
[   35.458702][ T4221] stack backtrace:
[   35.460278][ T4221] CPU: 0 PID: 4221 Comm: syz-executor326 Not tainted 6.1.82-syzkaller #0
[   35.462521][ T4221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[   35.465110][ T4221] Call trace:
[   35.465905][ T4221]  dump_backtrace+0x1c8/0x1f4
[   35.467188][ T4221]  show_stack+0x2c/0x3c
[   35.468291][ T4221]  dump_stack_lvl+0x108/0x170
[   35.469608][ T4221]  dump_stack+0x1c/0x58
[   35.470693][ T4221]  __lock_acquire+0x6310/0x7680
[   35.471992][ T4221]  lock_acquire+0x26c/0x7cc
[   35.473210][ T4221]  __mutex_lock_common+0x190/0x21a0
[   35.474580][ T4221]  mutex_lock_nested+0x38/0x44
[   35.475850][ T4221]  pipe_write+0x114/0x1990
[   35.477036][ T4221]  do_iter_write+0x534/0x964
[   35.478228][ T4221]  vfs_iter_write+0x88/0xac
[   35.479434][ T4221]  iter_file_splice_write+0x62c/0xc5c
[   35.480829][ T4221]  do_splice+0xfd0/0x1898
[   35.482040][ T4221]  __arm64_sys_splice+0x50c/0x7fc
[   35.483463][ T4221]  invoke_syscall+0x98/0x2c0
[   35.484769][ T4221]  el0_svc_common+0x138/0x258
[   35.486005][ T4221]  do_el0_svc+0x64/0x218
[   35.487125][ T4221]  el0_svc+0x58/0x168
[   35.488260][ T4221]  el0t_64_sync_handler+0x84/0xf0
[   35.489528][ T4221]  el0t_64_sync+0x18c/0x190