[ 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 '10.128.0.212' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 57.877019][ T6794] binder: 6792:6794 unknown command 553631744 [ 57.883209][ T6794] binder: 6792:6794 ioctl c0306201 20000540 returned -22 [ 57.944942][ T6796] ------------[ cut here ]------------ [ 57.950453][ T6796] WARNING: CPU: 1 PID: 6796 at drivers/android/binder.c:2348 binder_transaction_buffer_release+0x601/0x8a0 [ 57.961794][ T6796] Kernel panic - not syncing: panic_on_warn set ... [ 57.968378][ T6796] CPU: 1 PID: 6796 Comm: syz-executor442 Not tainted 5.7.0-rc6-next-20200522-syzkaller #0 [ 57.978242][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.988310][ T6796] Call Trace: [ 57.991586][ T6796] dump_stack+0x18f/0x20d [ 57.995904][ T6796] ? binder_transaction_buffer_release+0x5c0/0x8a0 [ 58.002390][ T6796] panic+0x2e3/0x75c [ 58.006270][ T6796] ? __warn_printk+0xf3/0xf3 [ 58.010844][ T6796] ? printk+0xba/0xed [ 58.014873][ T6796] ? log_store.cold+0x16/0x16 [ 58.019540][ T6796] ? __warn.cold+0x14/0x3a [ 58.023939][ T6796] ? __warn+0xd6/0x1b2 [ 58.027994][ T6796] ? binder_transaction_buffer_release+0x601/0x8a0 [ 58.034524][ T6796] __warn.cold+0x2f/0x3a [ 58.038759][ T6796] ? binder_transaction_buffer_release+0x601/0x8a0 [ 58.045241][ T6796] report_bug+0x27b/0x2f0 [ 58.049561][ T6796] do_error_trap+0x12b/0x220 [ 58.054230][ T6796] ? binder_transaction_buffer_release+0x601/0x8a0 [ 58.060941][ T6796] do_invalid_op+0x32/0x40 [ 58.065345][ T6796] ? binder_transaction_buffer_release+0x601/0x8a0 [ 58.071824][ T6796] invalid_op+0x23/0x30 [ 58.075971][ T6796] RIP: 0010:binder_transaction_buffer_release+0x601/0x8a0 [ 58.083058][ T6796] Code: b5 fd 31 ff 41 89 c5 89 c6 e8 db 13 77 fb 45 85 ed 0f 85 69 75 01 00 48 8d 45 40 48 89 44 24 28 e9 fa fa ff ff e8 1f 12 77 fb <0f> 0b e9 87 fc ff ff e8 13 12 77 fb 4c 8b 44 24 20 48 89 d8 45 31 [ 58.102648][ T6796] RSP: 0018:ffffc900015f7620 EFLAGS: 00010293 [ 58.108694][ T6796] RAX: ffff888093986140 RBX: 0000000000000058 RCX: 1ffff11012730ccb [ 58.116946][ T6796] RDX: 0000000000000000 RSI: ffffffff85fc9541 RDI: ffff8880974d5048 [ 58.126040][ T6796] RBP: ffff88809756c900 R08: ffff888093986140 R09: fffff520002beee7 [ 58.133995][ T6796] R10: ffffc900015f7737 R11: fffff520002beee6 R12: ffff888096360300 [ 58.141944][ T6796] R13: 0000000000000060 R14: ffff8880974d5000 R15: 0000000000000060 [ 58.149913][ T6796] ? binder_transaction_buffer_release+0x601/0x8a0 [ 58.156403][ T6796] ? debug_smp_processor_id+0x2f/0x185 [ 58.161844][ T6796] ? binder_deferred_fd_close+0x150/0x150 [ 58.171796][ T6796] ? binder_translate_fd.isra.0+0x175/0x7b0 [ 58.177669][ T6796] ? trace_hardirqs_off+0x50/0x220 [ 58.182758][ T6796] ? trace_hardirqs_off+0x50/0x220 [ 58.187866][ T6796] ? kfree+0x1eb/0x2b0 [ 58.191944][ T6796] ? debug_smp_processor_id+0x2f/0x185 [ 58.197415][ T6796] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.203059][ T6796] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.213204][ T6796] ? binder_free_txn_fixups+0x15a/0x230 [ 58.218754][ T6796] binder_transaction+0x146d/0x6500 [ 58.223949][ T6796] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.229911][ T6796] ? binder_translate_fd.isra.0+0x7b0/0x7b0 [ 58.235805][ T6796] ? stack_trace_consume_entry+0x160/0x160 [ 58.241612][ T6796] ? find_held_lock+0x2d/0x110 [ 58.246379][ T6796] ? __might_fault+0x11f/0x1d0 [ 58.251326][ T6796] ? lock_downgrade+0x840/0x840 [ 58.256210][ T6796] ? __might_fault+0x190/0x1d0 [ 58.260986][ T6796] binder_thread_write+0x818/0x2560 [ 58.266215][ T6796] ? binder_transaction+0x6500/0x6500 [ 58.271589][ T6796] ? __might_fault+0x11f/0x1d0 [ 58.276970][ T6796] ? lock_downgrade+0x840/0x840 [ 58.281824][ T6796] ? do_raw_spin_lock+0x129/0x2e0 [ 58.286852][ T6796] ? rwlock_bug.part.0+0x90/0x90 [ 58.291777][ T6796] ? __might_fault+0x190/0x1d0 [ 58.296548][ T6796] binder_ioctl+0x1008/0x1862 [ 58.301240][ T6796] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 58.307141][ T6796] ? binder_thread_read+0x3b80/0x3b80 [ 58.312497][ T6796] ? ioctl_file_clone+0x180/0x180 [ 58.317505][ T6796] ? __fget_files+0x32f/0x500 [ 58.322165][ T6796] ? do_dup2+0x520/0x520 [ 58.327197][ T6796] ? binder_thread_read+0x3b80/0x3b80 [ 58.332567][ T6796] ksys_ioctl+0x11a/0x180 [ 58.337492][ T6796] __x64_sys_ioctl+0x6f/0xb0 [ 58.342081][ T6796] do_syscall_64+0xf6/0x7d0 [ 58.346582][ T6796] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.352468][ T6796] RIP: 0033:0x44b5d9 [ 58.356377][ T6796] 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 [ 58.375990][ T6796] RSP: 002b:00007f6f77f75ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 58.384404][ T6796] RAX: ffffffffffffffda RBX: 00000000006dcc48 RCX: 000000000044b5d9 [ 58.392388][ T6796] RDX: 0000000020000540 RSI: 00000000c0306201 RDI: 0000000000000003 [ 58.400338][ T6796] RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 [ 58.408289][ T6796] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c [ 58.416257][ T6796] R13: 00007ffe2798039f R14: 00007f6f77f769c0 R15: 20c49ba5e353f7cf [ 58.426515][ T6796] Kernel Offset: disabled [ 58.430907][ T6796] Rebooting in 86400 seconds..