[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 60.411737][ T7041] ------------[ cut here ]------------ [ 60.417544][ T7041] WARNING: CPU: 0 PID: 7041 at drivers/android/binder.c:2348 binder_transaction_buffer_release+0x601/0x8a0 [ 60.428904][ T7041] Kernel panic - not syncing: panic_on_warn set ... [ 60.435471][ T7041] CPU: 0 PID: 7041 Comm: syz-executor375 Not tainted 5.7.0-rc7-syzkaller #0 [ 60.444139][ T7041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.454352][ T7041] Call Trace: [ 60.457634][ T7041] dump_stack+0x188/0x20d [ 60.461950][ T7041] ? binder_transaction_buffer_release+0x590/0x8a0 [ 60.468432][ T7041] panic+0x2e3/0x75c [ 60.472335][ T7041] ? add_taint.cold+0x16/0x16 [ 60.478221][ T7041] ? printk+0xba/0xed [ 60.482194][ T7041] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 60.487681][ T7041] ? __warn.cold+0x14/0x35 [ 60.492304][ T7041] ? __warn+0xd5/0x1c8 [ 60.496356][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 60.502836][ T7041] __warn.cold+0x2f/0x35 [ 60.507074][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 60.513834][ T7041] report_bug+0x27b/0x2f0 [ 60.518165][ T7041] do_error_trap+0x12b/0x220 [ 60.522734][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 60.529295][ T7041] do_invalid_op+0x32/0x40 [ 60.533714][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 60.540220][ T7041] invalid_op+0x23/0x30 [ 60.544365][ T7041] RIP: 0010:binder_transaction_buffer_release+0x601/0x8a0 [ 60.551466][ T7041] Code: bb fd 31 ff 41 89 c5 89 c6 e8 cb fe 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 3f fd 81 fb <0f> 0b e9 87 fc ff ff e8 33 fd 81 fb 4c 8b 44 24 20 48 89 d8 45 31 [ 60.571052][ T7041] RSP: 0018:ffffc90001477620 EFLAGS: 00010293 [ 60.577111][ T7041] RAX: ffff88808801a080 RBX: 0000000000000058 RCX: 1ffff110110034b3 [ 60.585167][ T7041] RDX: 0000000000000000 RSI: ffffffff85f14171 RDI: ffff888095309048 [ 60.593140][ T7041] RBP: ffff88809fcc0380 R08: ffff88808801a080 R09: fffff5200028eee7 [ 60.601092][ T7041] R10: ffffc90001477737 R11: fffff5200028eee6 R12: ffff8880a64544c0 [ 60.609072][ T7041] R13: 0000000000000060 R14: ffff888095309000 R15: 0000000000000060 [ 60.617495][ T7041] ? binder_transaction_buffer_release+0x601/0x8a0 [ 60.623997][ T7041] ? binder_update_ref_for_handle+0x490/0x490 [ 60.630038][ T7041] ? binder_translate_fd.isra.0+0x175/0x7b0 [ 60.635907][ T7041] ? trace_hardirqs_off+0x50/0x220 [ 60.640994][ T7041] ? trace_hardirqs_off+0x50/0x220 [ 60.646088][ T7041] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.651615][ T7041] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.657583][ T7041] ? binder_free_txn_fixups+0x15a/0x230 [ 60.663126][ T7041] binder_transaction+0x146d/0x6500 [ 60.668312][ T7041] ? mark_held_locks+0xe0/0xe0 [ 60.673066][ T7041] ? binder_deferred_func+0xfc0/0xfc0 [ 60.678415][ T7041] ? stack_trace_consume_entry+0x160/0x160 [ 60.684215][ T7041] ? find_held_lock+0x2d/0x110 [ 60.688970][ T7041] ? __might_fault+0x11f/0x1d0 [ 60.693731][ T7041] ? lock_downgrade+0x840/0x840 [ 60.698575][ T7041] ? __might_fault+0x190/0x1d0 [ 60.703324][ T7041] binder_thread_write+0x818/0x2560 [ 60.708506][ T7041] ? binder_transaction+0x6500/0x6500 [ 60.713867][ T7041] ? __might_fault+0x11f/0x1d0 [ 60.718626][ T7041] ? lock_downgrade+0x840/0x840 [ 60.723466][ T7041] ? do_raw_spin_lock+0x129/0x2e0 [ 60.728470][ T7041] ? __might_fault+0x190/0x1d0 [ 60.733213][ T7041] binder_ioctl+0x1008/0x1862 [ 60.737866][ T7041] ? do_vfs_ioctl+0x50c/0x1360 [ 60.742605][ T7041] ? binder_thread_read+0x3bd0/0x3bd0 [ 60.747952][ T7041] ? ioctl_file_clone+0x180/0x180 [ 60.752966][ T7041] ? __fget_files+0x32f/0x500 [ 60.757634][ T7041] ? ksys_dup3+0x3c0/0x3c0 [ 60.762042][ T7041] ? binder_thread_read+0x3bd0/0x3bd0 [ 60.767405][ T7041] ksys_ioctl+0x11a/0x180 [ 60.771735][ T7041] __x64_sys_ioctl+0x6f/0xb0 [ 60.776325][ T7041] ? lockdep_hardirqs_on+0x463/0x620 [ 60.781589][ T7041] do_syscall_64+0xf6/0x7d0 [ 60.786246][ T7041] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.792132][ T7041] RIP: 0033:0x44ba19 [ 60.796016][ T7041] Code: e8 bc ba 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 fb ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.815644][ T7041] RSP: 002b:00007fa22a96dce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 60.824036][ T7041] RAX: ffffffffffffffda RBX: 00000000006ddc48 RCX: 000000000044ba19 [ 60.832004][ T7041] RDX: 0000000020000540 RSI: 00000000c0306201 RDI: 0000000000000003 [ 60.839959][ T7041] RBP: 00000000006ddc40 R08: 0000000000000000 R09: 0000000000000000 [ 60.847907][ T7041] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc4c [ 60.855957][ T7041] R13: 00007fff3b6ddf0f R14: 00007fa22a96e9c0 R15: 20c49ba5e353f7cf [ 60.865675][ T7041] Kernel Offset: disabled [ 60.870069][ T7041] Rebooting in 86400 seconds..