[ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Reached target Timers. Starting getty on tty2-tty6 if dbus and logind are not available... Starting OpenBSD Secure Shell server... Starting System Logging Service... [ OK ] Started Permit User Sessions. [ OK ] Found device /dev/ttyS0. [ OK ] Started System Logging Service. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.22' (ECDSA) to the list of known hosts. syzkaller login: [ 69.708772][ T28] audit: type=1400 audit(1590230129.116:8): avc: denied { execmem } for pid=7047 comm="syz-executor142" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 69.740876][ T7048] IPVS: ftp: loaded support on port[0] = 21 executing program [ 69.796483][ T28] audit: type=1400 audit(1590230129.206:9): avc: denied { set_context_mgr } for pid=7048 comm="syz-executor142" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=binder permissive=1 [ 69.870961][ T28] audit: type=1400 audit(1590230129.286:10): avc: denied { call } for pid=7048 comm="syz-executor142" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=binder permissive=1 [ 69.871909][ T7071] ------------[ cut here ]------------ [ 69.899241][ T7071] WARNING: CPU: 1 PID: 7071 at drivers/android/binder.c:2348 binder_transaction_buffer_release+0x601/0x8a0 [ 69.911171][ T7071] Kernel panic - not syncing: panic_on_warn set ... [ 69.918553][ T7071] CPU: 1 PID: 7071 Comm: syz-executor142 Not tainted 5.7.0-rc6-syzkaller #0 [ 69.928174][ T7071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.939544][ T7071] Call Trace: [ 69.943089][ T7071] dump_stack+0x188/0x20d [ 69.948337][ T7071] ? binder_transaction_buffer_release+0x510/0x8a0 [ 69.955790][ T7071] panic+0x2e3/0x75c [ 69.960161][ T7071] ? add_taint.cold+0x16/0x16 [ 69.964836][ T7071] ? printk+0xba/0xed [ 69.971811][ T7071] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 69.977366][ T7071] ? __warn.cold+0x14/0x35 [ 69.982665][ T7071] ? __warn+0xd5/0x1c8 [ 69.987885][ T7071] ? binder_transaction_buffer_release+0x601/0x8a0 [ 69.994868][ T7071] __warn.cold+0x2f/0x35 [ 69.999110][ T7071] ? binder_transaction_buffer_release+0x601/0x8a0 [ 70.005602][ T7071] report_bug+0x27b/0x2f0 [ 70.009961][ T7071] do_error_trap+0x12b/0x220 [ 70.014546][ T7071] ? binder_transaction_buffer_release+0x601/0x8a0 [ 70.022503][ T7071] do_invalid_op+0x32/0x40 [ 70.027021][ T7071] ? binder_transaction_buffer_release+0x601/0x8a0 [ 70.033938][ T7071] invalid_op+0x23/0x30 [ 70.038903][ T7071] RIP: 0010:binder_transaction_buffer_release+0x601/0x8a0 [ 70.046719][ T7071] 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 [ 70.068568][ T7071] RSP: 0018:ffffc900018e7620 EFLAGS: 00010293 [ 70.074615][ T7071] RAX: ffff8880a12da5c0 RBX: 0000000000000058 RCX: 1ffff1101425b55b [ 70.082566][ T7071] RDX: 0000000000000000 RSI: ffffffff85f136f1 RDI: ffff88809db1c048 [ 70.090694][ T7071] RBP: ffff88809290a080 R08: ffff8880a12da5c0 R09: fffff5200031cee7 [ 70.099747][ T7071] R10: ffffc900018e7737 R11: fffff5200031cee6 R12: ffff88809187a040 [ 70.108106][ T7071] R13: 0000000000000060 R14: ffff88809db1c000 R15: 0000000000000060 [ 70.116343][ T7071] ? binder_transaction_buffer_release+0x601/0x8a0 [ 70.123218][ T7071] ? binder_update_ref_for_handle+0x490/0x490 [ 70.129455][ T7071] ? binder_translate_fd.isra.0+0x175/0x7b0 [ 70.139286][ T7071] ? trace_hardirqs_off+0x50/0x220 [ 70.144803][ T7071] ? trace_hardirqs_off+0x50/0x220 [ 70.150732][ T7071] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 70.157244][ T7071] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 70.163608][ T7071] ? binder_free_txn_fixups+0x15a/0x230 [ 70.169942][ T7071] binder_transaction+0x146d/0x6500 [ 70.176797][ T7071] ? mark_held_locks+0xe0/0xe0 [ 70.182598][ T7071] ? binder_deferred_func+0xfc0/0xfc0 [ 70.189487][ T7071] ? stack_trace_consume_entry+0x160/0x160 [ 70.196189][ T7071] ? find_held_lock+0x2d/0x110 [ 70.201476][ T7071] ? __might_fault+0x11f/0x1d0 [ 70.206252][ T7071] ? lock_downgrade+0x840/0x840 [ 70.211442][ T7071] ? __might_fault+0x190/0x1d0 [ 70.217957][ T7071] binder_thread_write+0x818/0x2560 [ 70.223205][ T7071] ? binder_transaction+0x6500/0x6500 [ 70.228706][ T7071] ? __might_fault+0x11f/0x1d0 [ 70.233487][ T7071] ? lock_downgrade+0x840/0x840 [ 70.238517][ T7071] ? do_raw_spin_lock+0x129/0x2e0 [ 70.243565][ T7071] ? __might_fault+0x190/0x1d0 [ 70.248923][ T7071] binder_ioctl+0x1008/0x1862 [ 70.253619][ T7071] ? do_vfs_ioctl+0x50c/0x1360 [ 70.258547][ T7071] ? binder_thread_read+0x3bd0/0x3bd0 [ 70.264106][ T7071] ? ioctl_file_clone+0x180/0x180 [ 70.269172][ T7071] ? selinux_file_mprotect+0x610/0x610 [ 70.275313][ T7071] ? __fget_files+0x32f/0x500 [ 70.280076][ T7071] ? ksys_dup3+0x3c0/0x3c0 [ 70.284695][ T7071] ? binder_thread_read+0x3bd0/0x3bd0 [ 70.291296][ T7071] ksys_ioctl+0x11a/0x180 [ 70.296503][ T7071] __x64_sys_ioctl+0x6f/0xb0 [ 70.301536][ T7071] ? lockdep_hardirqs_on+0x463/0x620 [ 70.307109][ T7071] do_syscall_64+0xf6/0x7d0 [ 70.312372][ T7071] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 70.319339][ T7071] RIP: 0033:0x44b749 [ 70.323312][ T7071] Code: e8 5c d9 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 bb d0 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 70.343929][ T7071] RSP: 002b:00007f65c624dce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 70.355327][ T7071] RAX: ffffffffffffffda RBX: 00000000006ddc48 RCX: 000000000044b749 [ 70.364503][ T7071] RDX: 0000000020000540 RSI: 00000000c0306201 RDI: 0000000000000003 [ 70.373671][ T7071] RBP: 00000000006ddc40 R08: 0000000000000000 R09: 0000000000000000 [ 70.383000][ T7071] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc4c [ 70.392311][ T7071] R13: 00007ffd9783511f R14: 00007f65c624e9c0 R15: 00000000006ddc4c [ 70.404564][ T7071] Kernel Offset: disabled [ 70.409297][ T7071] Rebooting in 86400 seconds..