Warning: Permanently added '10.128.0.251' (ECDSA) to the list of known hosts.
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syzkaller login: [ 65.069487][ T46] ------------[ cut here ]------------
[ 65.075139][ T46] refcount_t: addition on 0; use-after-free.
[ 65.081381][ T46] WARNING: CPU: 0 PID: 46 at lib/refcount.c:25 refcount_warn_saturate+0x17c/0x1f0
[ 65.090604][ T46] Modules linked in:
[ 65.094514][ T46] CPU: 0 PID: 46 Comm: kworker/u4:3 Not tainted 6.3.0-rc2-syzkaller-00050-g9c1bec9c0b08 #0
[ 65.104493][ T46] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
[ 65.114573][ T46] Workqueue: qrtr_ns_handler qrtr_ns_worker
[ 65.120595][ T46] RIP: 0010:refcount_warn_saturate+0x17c/0x1f0
[ 65.126838][ T46] Code: 0a 31 ff 89 de e8 64 17 73 fd 84 db 0f 85 2e ff ff ff e8 47 1b 73 fd 48 c7 c7 e0 6a a6 8a c6 05 5d 73 52 0a 01 e8 e4 94 3b fd <0f> 0b e9 0f ff ff ff e8 28 1b 73 fd 0f b6 1d 47 73 52 0a 31 ff 89
[ 65.146461][ T46] RSP: 0018:ffffc90000b779d8 EFLAGS: 00010086
[ 65.152526][ T46] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 65.160497][ T46] RDX: ffff888017d61d40 RSI: ffffffff814b6037 RDI: 0000000000000001
[ 65.168467][ T46] RBP: ffff88802717ec98 R08: 0000000000000001 R09: 0000000000000000
[ 65.176526][ T46] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888145178000
[ 65.184521][ T46] R13: ffff88802717ec00 R14: ffff8880280b1030 R15: ffff8880280b1034
[ 65.192513][ T46] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
[ 65.201445][ T46] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 65.208047][ T46] CR2: 00007ffdb2009388 CR3: 0000000029dad000 CR4: 00000000003506f0
[ 65.216017][ T46] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 65.223986][ T46] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 65.232078][ T46] Call Trace:
[ 65.235394][ T46]
[ 65.238354][ T46] qrtr_recvmsg+0x85f/0x990
[ 65.242876][ T46] ? qrtr_node_enqueue+0x1310/0x1310
[ 65.248192][ T46] ? bpf_lsm_socket_recvmsg+0x9/0x10
[ 65.253509][ T46] ? security_socket_recvmsg+0x93/0xc0
[ 65.259184][ T46] ? qrtr_node_enqueue+0x1310/0x1310
[ 65.264510][ T46] sock_recvmsg+0xe2/0x160
[ 65.269053][ T46] qrtr_ns_worker+0x170/0x1700
[ 65.273858][ T46] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 65.279846][ T46] ? lock_downgrade+0x690/0x690
[ 65.285408][ T46] ? ctrl_cmd_del_client+0xb30/0xb30
[ 65.290703][ T46] ? find_held_lock+0x2d/0x110
[ 65.295511][ T46] ? _raw_spin_unlock_irq+0x23/0x50
[ 65.300822][ T46] process_one_work+0x991/0x15c0
[ 65.305766][ T46] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 65.311158][ T46] ? spin_bug+0x1c0/0x1c0
[ 65.315516][ T46] ? _raw_spin_lock_irq+0x45/0x50
[ 65.320589][ T46] worker_thread+0x669/0x1090
[ 65.325294][ T46] ? process_one_work+0x15c0/0x15c0
[ 65.330491][ T46] kthread+0x2e8/0x3a0
[ 65.334554][ T46] ? kthread_complete_and_exit+0x40/0x40
[ 65.340185][ T46] ret_from_fork+0x1f/0x30
[ 65.344662][ T46]
[ 65.347676][ T46] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 65.358848][ T46] CPU: 0 PID: 46 Comm: kworker/u4:3 Not tainted 6.3.0-rc2-syzkaller-00050-g9c1bec9c0b08 #0
[ 65.369144][ T46] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
[ 65.379408][ T46] Workqueue: qrtr_ns_handler qrtr_ns_worker
[ 65.385338][ T46] Call Trace:
[ 65.388701][ T46]
[ 65.392488][ T46] dump_stack_lvl+0xd9/0x150
[ 65.397554][ T46] panic+0x688/0x730
[ 65.401485][ T46] ? panic_smp_self_stop+0x90/0x90
[ 65.406647][ T46] ? show_trace_log_lvl+0x285/0x390
[ 65.411891][ T46] ? refcount_warn_saturate+0x17c/0x1f0
[ 65.417437][ T46] check_panic_on_warn+0xb1/0xc0
[ 65.422389][ T46] __warn+0xf2/0x390
[ 65.426285][ T46] ? __wake_up_klogd.part.0+0x99/0xf0
[ 65.431739][ T46] ? refcount_warn_saturate+0x17c/0x1f0
[ 65.437317][ T46] report_bug+0x2da/0x500
[ 65.441672][ T46] handle_bug+0x3c/0x70
[ 65.445939][ T46] exc_invalid_op+0x18/0x50
[ 65.450458][ T46] asm_exc_invalid_op+0x1a/0x20
[ 65.455313][ T46] RIP: 0010:refcount_warn_saturate+0x17c/0x1f0
[ 65.461469][ T46] Code: 0a 31 ff 89 de e8 64 17 73 fd 84 db 0f 85 2e ff ff ff e8 47 1b 73 fd 48 c7 c7 e0 6a a6 8a c6 05 5d 73 52 0a 01 e8 e4 94 3b fd <0f> 0b e9 0f ff ff ff e8 28 1b 73 fd 0f b6 1d 47 73 52 0a 31 ff 89
[ 65.481079][ T46] RSP: 0018:ffffc90000b779d8 EFLAGS: 00010086
[ 65.487153][ T46] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 65.495120][ T46] RDX: ffff888017d61d40 RSI: ffffffff814b6037 RDI: 0000000000000001
[ 65.503275][ T46] RBP: ffff88802717ec98 R08: 0000000000000001 R09: 0000000000000000
[ 65.511271][ T46] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888145178000
[ 65.519256][ T46] R13: ffff88802717ec00 R14: ffff8880280b1030 R15: ffff8880280b1034
[ 65.527266][ T46] ? __warn_printk+0x187/0x310
[ 65.532062][ T46] ? refcount_warn_saturate+0x17c/0x1f0
[ 65.537698][ T46] qrtr_recvmsg+0x85f/0x990
[ 65.542226][ T46] ? qrtr_node_enqueue+0x1310/0x1310
[ 65.547539][ T46] ? bpf_lsm_socket_recvmsg+0x9/0x10
[ 65.552915][ T46] ? security_socket_recvmsg+0x93/0xc0
[ 65.558376][ T46] ? qrtr_node_enqueue+0x1310/0x1310
[ 65.563665][ T46] sock_recvmsg+0xe2/0x160
[ 65.568103][ T46] qrtr_ns_worker+0x170/0x1700
[ 65.572880][ T46] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 65.578916][ T46] ? lock_downgrade+0x690/0x690
[ 65.583794][ T46] ? ctrl_cmd_del_client+0xb30/0xb30
[ 65.589085][ T46] ? find_held_lock+0x2d/0x110
[ 65.593882][ T46] ? _raw_spin_unlock_irq+0x23/0x50
[ 65.599088][ T46] process_one_work+0x991/0x15c0
[ 65.604033][ T46] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 65.609404][ T46] ? spin_bug+0x1c0/0x1c0
[ 65.613744][ T46] ? _raw_spin_lock_irq+0x45/0x50
[ 65.618815][ T46] worker_thread+0x669/0x1090
[ 65.623510][ T46] ? process_one_work+0x15c0/0x15c0
[ 65.628844][ T46] kthread+0x2e8/0x3a0
[ 65.632914][ T46] ? kthread_complete_and_exit+0x40/0x40
[ 65.638566][ T46] ret_from_fork+0x1f/0x30
[ 65.642999][ T46]
[ 66.724534][ T46] Shutting down cpus with NMI
[ 66.729461][ T46] Kernel Offset: disabled
[ 66.733896][ T46] Rebooting in 86400 seconds..