[....] Starting enhanced syslogd: rsyslogd[ 15.354054] audit: type=1400 audit(1521250315.243:5): avc: denied { syslog } for pid=4025 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. 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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.906659] audit: type=1400 audit(1521250317.796:6): avc: denied { map } for pid=4164 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 Warning: Permanently added '10.128.0.46' (ECDSA) to the list of known hosts. [ 34.667080] audit: type=1400 audit(1521250334.556:7): avc: denied { map } for pid=4181 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/03/17 01:32:14 parsed 1 programs 2018/03/17 01:32:14 executed programs: 0 [ 34.903646] audit: type=1400 audit(1521250334.793:8): avc: denied { map } for pid=4181 comm="syz-execprog" path="/root/syzkaller-shm379696702" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 34.929263] audit: type=1400 audit(1521250334.818:9): avc: denied { sys_admin } for pid=4187 comm="syz-executor3" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 34.933457] IPVS: ftp: loaded support on port[0] = 21 [ 34.981215] IPVS: ftp: loaded support on port[0] = 21 [ 34.987380] audit: type=1400 audit(1521250334.877:10): avc: denied { sys_chroot } for pid=4189 comm="syz-executor3" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 35.011801] audit: type=1400 audit(1521250334.877:11): avc: denied { net_admin } for pid=4189 comm="syz-executor3" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 35.013759] IPVS: ftp: loaded support on port[0] = 21 [ 35.061823] IPVS: ftp: loaded support on port[0] = 21 [ 35.089502] IPVS: ftp: loaded support on port[0] = 21 [ 35.119230] IPVS: ftp: loaded support on port[0] = 21 [ 35.160762] IPVS: ftp: loaded support on port[0] = 21 [ 35.188591] IPVS: ftp: loaded support on port[0] = 21 2018/03/17 01:32:19 executed programs: 801 [ 43.218854] kasan: CONFIG_KASAN_INLINE enabled [ 43.223663] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 43.231160] general protection fault: 0000 [#1] SMP KASAN [ 43.236700] Dumping ftrace buffer: [ 43.240235] (ftrace buffer empty) [ 43.243927] Modules linked in: [ 43.247111] CPU: 0 PID: 11357 Comm: syz-executor0 Not tainted 4.16.0-rc5+ #267 [ 43.254449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.263808] RIP: 0010:ucma_query_route+0x15e/0x1080 [ 43.268813] RSP: 0018:ffff8801d283f8c0 EFLAGS: 00010202 [ 43.274163] RAX: dffffc0000000000 RBX: 1ffff1003a507f1c RCX: 0000000000000000 [ 43.281419] RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffff8801cb9339b0 [ 43.288679] RBP: ffff8801d283fa70 R08: ffffed003a507f41 R09: ffff8801d283f940 [ 43.295932] R10: 0000000000000019 R11: ffffed003a507f40 R12: ffff8801cb933940 [ 43.303182] R13: ffff8801d283f940 R14: 0000000000000020 R15: 0000000000000000 [ 43.310437] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f7fccb40 [ 43.318646] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 43.324516] CR2: 0000000008114284 CR3: 00000001cd72a004 CR4: 00000000001606f0 [ 43.331771] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.339018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.346266] Call Trace: [ 43.348840] ? ucma_leave_multicast+0x860/0x860 [ 43.353483] ? lock_downgrade+0x980/0x980 [ 43.357615] ucma_write+0x2d6/0x3d0 [ 43.361210] ? ucma_write+0x2d6/0x3d0 [ 43.364979] ? ucma_leave_multicast+0x860/0x860 [ 43.369619] ? ucma_resolve_route+0x1a0/0x1a0 [ 43.374090] ? ucma_resolve_route+0x1a0/0x1a0 [ 43.378555] __vfs_write+0xef/0x970 [ 43.382157] ? rcu_note_context_switch+0x710/0x710 [ 43.387054] ? kernel_read+0x120/0x120 [ 43.390913] ? __might_sleep+0x95/0x190 [ 43.394863] ? _cond_resched+0x14/0x30 [ 43.398723] ? __inode_security_revalidate+0xd9/0x130 [ 43.403881] ? avc_policy_seqno+0x9/0x20 [ 43.407913] ? selinux_file_permission+0x82/0x460 [ 43.412728] ? security_file_permission+0x89/0x1e0 [ 43.417636] ? rw_verify_area+0xe5/0x2b0 [ 43.421671] ? __fdget_raw+0x20/0x20 [ 43.425356] vfs_write+0x189/0x510 [ 43.428869] SyS_write+0xef/0x220 [ 43.432291] ? filp_open+0x70/0x70 [ 43.435802] ? SyS_read+0x220/0x220 [ 43.439409] ? do_fast_syscall_32+0x156/0xf9f [ 43.443877] ? SyS_read+0x220/0x220 [ 43.447472] do_fast_syscall_32+0x3ec/0xf9f [ 43.451764] ? _raw_spin_unlock_irq+0x27/0x70 [ 43.456231] ? do_int80_syscall_32+0x9c0/0x9c0 [ 43.460780] ? _raw_spin_unlock_irq+0x27/0x70 [ 43.465244] ? finish_task_switch+0x1c1/0x7e0 [ 43.469708] ? syscall_return_slowpath+0x2ac/0x550 [ 43.474608] ? prepare_exit_to_usermode+0x350/0x350 [ 43.479594] ? retint_user+0x18/0x18 [ 43.483283] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.488099] entry_SYSENTER_compat+0x70/0x7f [ 43.492478] RIP: 0023:0xf7fd0c99 [ 43.495809] RSP: 002b:00000000f7fcc09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 43.503484] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000140 [ 43.510721] RDX: 00000000fffffdaa RSI: 0000000000000000 RDI: 0000000000000000 [ 43.517957] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 43.525197] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 43.532434] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 43.539681] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bb 0c 00 00 4d 8b 7c 24 70 48 b8 00 00 00 00 00 fc ff df 4d 8d 77 20 4c 89 f2 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 [ 43.558747] RIP: ucma_query_route+0x15e/0x1080 RSP: ffff8801d283f8c0 [ 43.565268] ---[ end trace e3afb8a6461e52f7 ]--- [ 43.570026] Kernel panic - not syncing: Fatal exception [ 43.575776] Dumping ftrace buffer: [ 43.579288] (ftrace buffer empty) [ 43.582968] Kernel Offset: disabled [ 43.586561] Rebooting in 86400 seconds..