[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 59.568341][ T7041] ------------[ cut here ]------------ [ 59.573936][ T7041] WARNING: CPU: 1 PID: 7041 at drivers/android/binder.c:2348 binder_transaction_buffer_release+0x601/0x8a0 [ 59.585305][ T7041] Kernel panic - not syncing: panic_on_warn set ... [ 59.591879][ T7041] CPU: 1 PID: 7041 Comm: syz-executor755 Not tainted 5.7.0-rc6-syzkaller #0 [ 59.600549][ T7041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.610655][ T7041] Call Trace: [ 59.614047][ T7041] dump_stack+0x188/0x20d [ 59.618482][ T7041] ? binder_transaction_buffer_release+0x510/0x8a0 [ 59.624970][ T7041] panic+0x2e3/0x75c [ 59.628853][ T7041] ? add_taint.cold+0x16/0x16 [ 59.633511][ T7041] ? printk+0xba/0xed [ 59.637471][ T7041] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 59.642908][ T7041] ? __warn.cold+0x14/0x35 [ 59.649359][ T7041] ? __warn+0xd5/0x1c8 [ 59.653408][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 59.659921][ T7041] __warn.cold+0x2f/0x35 [ 59.664165][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 59.670653][ T7041] report_bug+0x27b/0x2f0 [ 59.674969][ T7041] do_error_trap+0x12b/0x220 [ 59.679538][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 59.686022][ T7041] do_invalid_op+0x32/0x40 [ 59.690420][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 59.696918][ T7041] invalid_op+0x23/0x30 [ 59.701055][ T7041] RIP: 0010:binder_transaction_buffer_release+0x601/0x8a0 [ 59.708148][ T7041] Code: bb fd 31 ff 41 89 c5 89 c6 e8 bb ff 81 fb 45 85 ed 0f 85 f9 4b 01 00 48 8d 45 40 48 89 44 24 28 e9 fa fa ff ff e8 2f fe 81 fb <0f> 0b e9 87 fc ff ff e8 23 fe 81 fb 4c 8b 44 24 20 48 89 d8 45 31 [ 59.727746][ T7041] RSP: 0018:ffffc900018f7620 EFLAGS: 00010293 [ 59.733794][ T7041] RAX: ffff8880972d8440 RBX: 0000000000000058 RCX: 1ffff11012e5b12b [ 59.741902][ T7041] RDX: 0000000000000000 RSI: ffffffff85f136f1 RDI: ffff8880978f6048 [ 59.749860][ T7041] RBP: ffff888095523500 R08: ffff8880972d8440 R09: fffff5200031eee7 [ 59.757968][ T7041] R10: ffffc900018f7737 R11: fffff5200031eee6 R12: ffff8880972743c0 [ 59.765940][ T7041] R13: 0000000000000060 R14: ffff8880978f6000 R15: 0000000000000060 [ 59.773909][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 59.780398][ T7041] ? binder_update_ref_for_handle+0x490/0x490 [ 59.786459][ T7041] ? binder_translate_fd.isra.0+0x175/0x7b0 [ 59.792372][ T7041] ? trace_hardirqs_off+0x50/0x220 [ 59.797468][ T7041] ? trace_hardirqs_off+0x50/0x220 [ 59.802615][ T7041] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.808347][ T7041] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.814357][ T7041] ? binder_free_txn_fixups+0x15a/0x230 [ 59.819882][ T7041] binder_transaction+0x146d/0x6500 [ 59.825082][ T7041] ? mark_held_locks+0xe0/0xe0 [ 59.829900][ T7041] ? binder_deferred_func+0xfc0/0xfc0 [ 59.835365][ T7041] ? stack_trace_consume_entry+0x160/0x160 [ 59.841164][ T7041] ? find_held_lock+0x2d/0x110 [ 59.845931][ T7041] ? __might_fault+0x11f/0x1d0 [ 59.850677][ T7041] ? lock_downgrade+0x840/0x840 [ 59.855509][ T7041] ? __might_fault+0x190/0x1d0 [ 59.860255][ T7041] binder_thread_write+0x818/0x2560 [ 59.865450][ T7041] ? binder_transaction+0x6500/0x6500 [ 59.870810][ T7041] ? __might_fault+0x11f/0x1d0 [ 59.875562][ T7041] ? lock_downgrade+0x840/0x840 [ 59.880390][ T7041] ? do_raw_spin_lock+0x129/0x2e0 [ 59.885396][ T7041] ? __might_fault+0x190/0x1d0 [ 59.890141][ T7041] binder_ioctl+0x1008/0x1862 [ 59.894813][ T7041] ? do_vfs_ioctl+0x50c/0x1360 [ 59.899556][ T7041] ? binder_thread_read+0x3bd0/0x3bd0 [ 59.904916][ T7041] ? ioctl_file_clone+0x180/0x180 [ 59.909944][ T7041] ? __fget_files+0x32f/0x500 [ 59.914606][ T7041] ? ksys_dup3+0x3c0/0x3c0 [ 59.919021][ T7041] ? binder_thread_read+0x3bd0/0x3bd0 [ 59.924435][ T7041] ksys_ioctl+0x11a/0x180 [ 59.928749][ T7041] __x64_sys_ioctl+0x6f/0xb0 [ 59.933313][ T7041] ? lockdep_hardirqs_on+0x463/0x620 [ 59.938635][ T7041] do_syscall_64+0xf6/0x7d0 [ 59.943134][ T7041] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.949012][ T7041] RIP: 0033:0x44b5d9 [ 59.952890][ T7041] Code: e8 8c b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 2b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 59.973609][ T7041] RSP: 002b:00007f5a2f239ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 59.982040][ T7041] RAX: ffffffffffffffda RBX: 00000000006dcc48 RCX: 000000000044b5d9 [ 59.990003][ T7041] RDX: 0000000020000540 RSI: 00000000c0306201 RDI: 0000000000000003 [ 59.998050][ T7041] RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 [ 60.006007][ T7041] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c [ 60.014011][ T7041] R13: 00007ffd6311964f R14: 00007f5a2f23a9c0 R15: 20c49ba5e353f7cf [ 60.023208][ T7041] Kernel Offset: disabled [ 60.027590][ T7041] Rebooting in 86400 seconds..