Warning: Permanently added '10.128.0.183' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   47.976744][ T3599] 
[   47.979101][ T3599] =====================================
[   47.984624][ T3599] WARNING: bad unlock balance detected!
[   47.990147][ T3599] 5.16.0-rc5-syzkaller #0 Not tainted
[   47.995502][ T3599] -------------------------------------
[   48.001032][ T3599] syz-executor262/3599 is trying to release lock (&call->user_mutex) at:
[   48.009434][ T3599] [<ffffffff88513dc3>] rxrpc_do_sendmsg+0xc13/0x1350
[   48.016120][ T3599] but there are no more locks to release!
[   48.021814][ T3599] 
[   48.021814][ T3599] other info that might help us debug this:
[   48.029854][ T3599] no locks held by syz-executor262/3599.
[   48.035473][ T3599] 
[   48.035473][ T3599] stack backtrace:
[   48.041434][ T3599] CPU: 1 PID: 3599 Comm: syz-executor262 Not tainted 5.16.0-rc5-syzkaller #0
[   48.050188][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.060229][ T3599] Call Trace:
[   48.063493][ T3599]  <TASK>
[   48.066412][ T3599]  dump_stack_lvl+0xcd/0x134
[   48.071015][ T3599]  lock_release.cold+0x49/0x4e
[   48.075786][ T3599]  ? rxrpc_do_sendmsg+0xc13/0x1350
[   48.080899][ T3599]  ? lock_downgrade+0x6e0/0x6e0
[   48.085761][ T3599]  ? trace_rxrpc_timer+0x290/0x290
[   48.090886][ T3599]  __mutex_unlock_slowpath+0x99/0x5e0
[   48.096273][ T3599]  ? wait_for_completion_io+0x270/0x270
[   48.101830][ T3599]  ? wake_up_q+0xf0/0xf0
[   48.106075][ T3599]  ? rxrpc_do_sendmsg+0xef8/0x1350
[   48.111178][ T3599]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   48.117421][ T3599]  ? rxrpc_put_peer+0x8a/0x3c0
[   48.122177][ T3599]  rxrpc_do_sendmsg+0xc13/0x1350
[   48.127108][ T3599]  ? rxrpc_kernel_send_data+0x450/0x450
[   48.132647][ T3599]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   48.138893][ T3599]  ? rxrpc_lookup_local+0x9bd/0x1050
[   48.144176][ T3599]  rxrpc_sendmsg+0x420/0x630
[   48.148760][ T3599]  ? rxrpc_sock_set_min_security_level+0xe0/0xe0
[   48.155085][ T3599]  sock_sendmsg+0xcf/0x120
[   48.159503][ T3599]  ____sys_sendmsg+0x6e8/0x810
[   48.164261][ T3599]  ? kernel_sendmsg+0x50/0x50
[   48.168931][ T3599]  ? do_recvmmsg+0x6d0/0x6d0
[   48.173512][ T3599]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[   48.179485][ T3599]  ? lock_downgrade+0x6e0/0x6e0
[   48.184332][ T3599]  ___sys_sendmsg+0xf3/0x170
[   48.188915][ T3599]  ? sendmsg_copy_msghdr+0x160/0x160
[   48.194191][ T3599]  ? lock_downgrade+0x6e0/0x6e0
[   48.199148][ T3599]  ? __fget_light+0xea/0x280
[   48.203745][ T3599]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[   48.209986][ T3599]  __sys_sendmsg+0xe5/0x1b0
[   48.214489][ T3599]  ? __sys_sendmsg_sock+0x30/0x30
[   48.219518][ T3599]  ? syscall_enter_from_user_mode+0x21/0x70
[   48.225413][ T3599]  do_syscall_64+0x35/0xb0
[   48.229822][ T3599]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   48.235714][ T3599] RIP: 0033:0x7efe6296fdf9
[   48.240122][ T3599] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   48.259893][ T3599] RSP: 002b:00007efe62922318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   48.268296][ T3599] RAX: ffffffffffffffda RBX: 00007efe629f83e8 RCX: 00007efe6296fdf9
[   48.276258][ T3599]