Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 31.117220] audit: type=1800 audit(1539415030.588:33): pid=5339 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 31.146207] audit: type=1800 audit(1539415030.598:34): pid=5339 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [ 31.768877] audit: type=1400 audit(1539415031.238:35): avc: denied { map } for pid=5512 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.43' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.539928] audit: type=1400 audit(1539415038.018:36): avc: denied { map } for pid=5526 comm="syz-executor934" path="/root/syz-executor934196400" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 38.545551] kasan: CONFIG_KASAN_INLINE enabled [ 38.571275] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 38.578667] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 38.584892] CPU: 1 PID: 5526 Comm: syz-executor934 Not tainted 4.19.0-rc7+ #60 [ 38.592268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.601640] RIP: 0010:rb_erase+0x306/0x3710 [ 38.605955] Code: c7 81 28 01 00 00 f2 f2 f2 f2 c7 81 2c 01 00 00 00 f2 f2 f2 48 89 f9 65 48 8b 1c 25 28 00 00 00 48 89 5d d0 31 db 48 c1 e9 03 <42> 80 3c 01 00 0f 85 41 1c 00 00 4c 8d 48 10 4c 8b 78 08 48 b9 00 [ 38.624864] RSP: 0018:ffff8801c5716918 EFLAGS: 00010202 [ 38.630220] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 38.637482] RDX: 1ffff10038ae2d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 38.644745] RBP: ffff8801c5717320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 38.652008] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b0f6a3f0 [ 38.659280] R13: dffffc0000000000 R14: ffff8801c57172f8 R15: ffff8801c5717438 [ 38.666728] FS: 0000000001b77880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 38.674948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.680821] CR2: 0000000020000700 CR3: 00000001c54e3000 CR4: 00000000001406e0 [ 38.688090] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.695370] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.702629] Call Trace: [ 38.705211] ? lockdep_on+0x50/0x50 [ 38.708831] ? rb_insert_color+0x1460/0x1460 [ 38.713233] ? noop_count+0x40/0x40 [ 38.716861] ? lock_pin_lock+0x350/0x350 [ 38.720913] ? noop_count+0x40/0x40 [ 38.724528] ? kasan_check_read+0x11/0x20 [ 38.728674] ? noop_count+0x40/0x40 [ 38.732308] ? noop_count+0x40/0x40 [ 38.735943] ? lock_pin_lock+0x350/0x350 [ 38.739993] ? mark_held_locks+0x130/0x130 [ 38.744217] ? check_usage_forwards+0x3e0/0x3e0 [ 38.748871] ? __bfs+0x385/0x7a0 [ 38.752223] ? noop_count+0x40/0x40 [ 38.755851] ? check_usage+0x1a9/0x790 [ 38.759723] ? lock_pin_lock+0x350/0x350 [ 38.763770] ? check_usage_forwards+0x3e0/0x3e0 [ 38.768419] ? __bfs+0x385/0x7a0 [ 38.771771] ? __lock_acquire+0x7ec/0x4ec0 [ 38.776043] ? lockdep_on+0x50/0x50 [ 38.779657] ? lock_pin_lock+0x350/0x350 [ 38.783706] ? mark_held_locks+0x130/0x130 [ 38.787930] ? kasan_check_read+0x11/0x20 [ 38.792073] ? __lock_acquire+0x2881/0x4ec0 [ 38.796381] ? mark_held_locks+0x130/0x130 [ 38.800623] ? print_usage_bug+0xc0/0xc0 [ 38.804686] ? _raw_spin_unlock+0x2c/0x50 [ 38.808819] ? graph_lock+0x170/0x170 [ 38.812607] ? ext4_exit_mballoc+0xc0/0xc0 [ 38.816828] ? __lock_acquire+0x7ec/0x4ec0 [ 38.821050] ? find_held_lock+0x36/0x1c0 [ 38.825100] ? mark_held_locks+0x130/0x130 [ 38.829321] ? lock_downgrade+0x900/0x900 [ 38.833470] ? ext4_es_scan+0x960/0x960 [ 38.837429] ? lock_release+0x970/0x970 [ 38.841392] ? do_raw_write_trylock+0x1c0/0x1c0 [ 38.846046] ? kasan_check_write+0x14/0x20 [ 38.850283] ? lock_acquire+0x1ed/0x520 [ 38.854273] ? integrity_inode_free+0x77/0x320 [ 38.858839] ? ext4_es_remove_extent+0x151/0x500 [ 38.863586] ? lock_release+0x970/0x970 [ 38.867545] ? kasan_check_write+0x14/0x20 [ 38.871773] ? do_raw_write_lock+0xbd/0x1b0 [ 38.876081] integrity_inode_free+0x12f/0x320 [ 38.880573] security_inode_free+0x19/0x90 [ 38.884803] __destroy_inode+0x328/0x820 [ 38.888860] ? generic_update_time+0x450/0x450 [ 38.893442] ? evict+0x5d8/0x980 [ 38.896811] ? lock_downgrade+0x900/0x900 [ 38.900958] ? __inode_wait_for_writeback+0x2cf/0x380 [ 38.906148] destroy_inode+0xda/0x200 [ 38.909944] ? __destroy_inode+0x820/0x820 [ 38.914169] ? kasan_check_write+0x14/0x20 [ 38.918400] ? do_raw_spin_lock+0xc1/0x200 [ 38.922645] evict+0x5e0/0x980 [ 38.925831] ? destroy_inode+0x200/0x200 [ 38.929896] ? iput+0x671/0xa90 [ 38.933166] ? lock_downgrade+0x900/0x900 [ 38.937303] ? kasan_check_read+0x11/0x20 [ 38.941451] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 38.946042] ? lock_downgrade+0x900/0x900 [ 38.950204] iput+0x679/0xa90 [ 38.953310] ? inode_add_lru+0x2a0/0x2a0 [ 38.957370] ? up_write+0x7b/0x220 [ 38.960898] ? up_read+0x110/0x110 [ 38.964421] ? up_read+0x110/0x110 [ 38.967948] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.973481] ? check_preemption_disabled+0x48/0x200 [ 38.978491] ext4_ioctl+0x236f/0x4210 [ 38.982287] ? ext4_ioctl_group_add+0x560/0x560 [ 38.986948] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 38.992737] ? kasan_check_read+0x11/0x20 [ 38.996880] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.002150] ? rcu_bh_qs+0xc0/0xc0 [ 39.005681] ? rcu_bh_qs+0xc0/0xc0 [ 39.009223] ? unwind_dump+0x190/0x190 [ 39.013115] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.018642] ? avc_has_extended_perms+0xab2/0x15a0 [ 39.023571] ? avc_ss_reset+0x190/0x190 [ 39.027539] ? save_stack+0xa9/0xd0 [ 39.031160] ? save_stack+0x43/0xd0 [ 39.034772] ? __kasan_slab_free+0x102/0x150 [ 39.039181] ? kasan_slab_free+0xe/0x10 [ 39.043143] ? kmem_cache_free+0x83/0x290 [ 39.047280] ? putname+0xf2/0x130 [ 39.050719] ? do_sys_open+0x54d/0x700 [ 39.054594] ? __x64_sys_open+0x7e/0xc0 [ 39.058578] ? do_syscall_64+0x1b9/0x820 [ 39.062640] ? kasan_check_read+0x11/0x20 [ 39.066789] ? ___might_sleep+0x1ed/0x300 [ 39.070927] ? arch_local_save_flags+0x40/0x40 [ 39.075494] ? kasan_check_write+0x14/0x20 [ 39.079721] ? trace_hardirqs_off+0xb8/0x310 [ 39.084118] ? ext4_ioctl_group_add+0x560/0x560 [ 39.088775] do_vfs_ioctl+0x1de/0x1720 [ 39.092654] ? ioctl_preallocate+0x300/0x300 [ 39.097053] ? selinux_file_mprotect+0x620/0x620 [ 39.101802] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.106809] ? kmem_cache_free+0x19b/0x290 [ 39.111035] ? putname+0xf7/0x130 [ 39.114477] ? do_syscall_64+0x9a/0x820 [ 39.118440] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.123970] ? security_file_ioctl+0x94/0xc0 [ 39.128372] ksys_ioctl+0xa9/0xd0 [ 39.131832] __x64_sys_ioctl+0x73/0xb0 [ 39.135712] do_syscall_64+0x1b9/0x820 [ 39.139608] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.144962] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.149879] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.154725] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.159751] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.164762] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.169788] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.174625] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.180099] RIP: 0033:0x440029 [ 39.183279] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 39.202184] RSP: 002b:00007ffd6c024d68 EFLAGS: 00000217 ORIG_RAX: 0000000000000010 [ 39.209892] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 39.217155] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000004 [ 39.224426] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 39.231686] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018b0 [ 39.238947] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 39.246230] Modules linked in: [ 39.249487] ---[ end trace b017d5bb26888e1c ]--- [ 39.254273] RIP: 0010:rb_erase+0x306/0x3710 [ 39.258609] Code: c7 81 28 01 00 00 f2 f2 f2 f2 c7 81 2c 01 00 00 00 f2 f2 f2 48 89 f9 65 48 8b 1c 25 28 00 00 00 48 89 5d d0 31 db 48 c1 e9 03 <42> 80 3c 01 00 0f 85 41 1c 00 00 4c 8d 48 10 4c 8b 78 08 48 b9 00 [ 39.277604] RSP: 0018:ffff8801c5716918 EFLAGS: 00010202 [ 39.282994] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.290279] RDX: 1ffff10038ae2d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 39.297544] RBP: ffff8801c5717320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 39.304852] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b0f6a3f0 [ 39.312153] R13: dffffc0000000000 R14: ffff8801c57172f8 R15: ffff8801c5717438 [ 39.319464] FS: 0000000001b77880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 39.327698] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.333601] CR2: 0000000020000700 CR3: 00000001c54e3000 CR4: 00000000001406e0 [ 39.340889] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.348188] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.355488] Kernel panic - not syncing: Fatal exception [ 39.361760] Kernel Offset: disabled [ 39.365383] Rebooting in 86400 seconds..