[....] Starting enhanced syslogd: rsyslogd[ 17.169967] audit: type=1400 audit(1520478338.111:5): avc: denied { syslog } for pid=4097 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 22.471260] audit: type=1400 audit(1520478343.413:6): avc: denied { map } for pid=4236 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 '10.128.0.62' (ECDSA) to the list of known hosts. [ 29.372642] audit: type=1400 audit(1520478350.314:7): avc: denied { map } for pid=4250 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 2018/03/08 03:05:50 parsed 1 programs 2018/03/08 03:05:50 executed programs: 0 [ 29.607524] audit: type=1400 audit(1520478350.548:8): avc: denied { map } for pid=4250 comm="syz-execprog" path="/root/syzkaller-shm432705674" 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 [ 29.617463] IPVS: ftp: loaded support on port[0] = 21 [ 32.179056] kasan: CONFIG_KASAN_INLINE enabled [ 32.183757] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.191372] general protection fault: 0000 [#1] SMP KASAN [ 32.196882] Dumping ftrace buffer: [ 32.200390] (ftrace buffer empty) [ 32.204074] Modules linked in: [ 32.207240] CPU: 1 PID: 4763 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #255 [ 32.214479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.223810] RIP: 0010:rdma_listen+0x72/0x8e0 [ 32.228186] RSP: 0018:ffff8801adcf7948 EFLAGS: 00010207 [ 32.233521] RAX: 0000000000000042 RBX: 0000000000000000 RCX: ffffffff841d7a24 [ 32.240771] RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000214 [ 32.248011] RBP: ffff8801adcf79e0 R08: 0000000000000000 R09: 0000000000000000 [ 32.255262] R10: ffffffff88613380 R11: 0000000000000000 R12: 1ffff10035b9ef2b [ 32.262517] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000400 [ 32.269758] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7f84b40 [ 32.277952] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 32.283801] CR2: 000000000813b029 CR3: 00000001adfb1002 CR4: 00000000001606e0 [ 32.291041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.298278] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.305524] Call Trace: [ 32.308084] ? rdma_resolve_addr+0x26c0/0x26c0 [ 32.312641] ucma_listen+0x172/0x1f0 [ 32.316326] ? ucma_accept+0x970/0x970 [ 32.320186] ? kasan_check_write+0x14/0x20 [ 32.324391] ? _copy_from_user+0x99/0x110 [ 32.328512] ucma_write+0x2d6/0x3d0 [ 32.332108] ? ucma_accept+0x970/0x970 [ 32.335964] ? ucma_resolve_route+0x1a0/0x1a0 [ 32.340436] ? ucma_resolve_route+0x1a0/0x1a0 [ 32.344910] __vfs_write+0xef/0x970 [ 32.348513] ? rcu_note_context_switch+0x710/0x710 [ 32.353412] ? kernel_read+0x120/0x120 [ 32.357272] ? __might_sleep+0x95/0x190 [ 32.361221] ? _cond_resched+0x14/0x30 [ 32.365080] ? __inode_security_revalidate+0xd9/0x130 [ 32.370238] ? avc_policy_seqno+0x9/0x20 [ 32.374270] ? selinux_file_permission+0x82/0x460 [ 32.379083] ? security_file_permission+0x89/0x1e0 [ 32.383983] ? rw_verify_area+0xe5/0x2b0 [ 32.388009] ? __fdget_raw+0x20/0x20 [ 32.391692] vfs_write+0x189/0x510 [ 32.395203] SyS_write+0xef/0x220 [ 32.398623] ? filp_open+0x70/0x70 [ 32.402131] ? SyS_read+0x220/0x220 [ 32.405730] ? do_fast_syscall_32+0x156/0xf9f [ 32.410202] ? SyS_read+0x220/0x220 [ 32.413800] do_fast_syscall_32+0x3ec/0xf9f [ 32.418091] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.422565] ? do_int80_syscall_32+0x9c0/0x9c0 [ 32.427115] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.431577] ? finish_task_switch+0x1c1/0x7e0 [ 32.436045] ? syscall_return_slowpath+0x2ac/0x550 [ 32.440946] ? prepare_exit_to_usermode+0x350/0x350 [ 32.445933] ? sysret32_from_system_call+0x5/0x3c [ 32.450747] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.455559] entry_SYSENTER_compat+0x70/0x7f [ 32.459936] RIP: 0023:0xf7fa9c99 [ 32.463267] RSP: 002b:00000000f7f8409c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 32.470942] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020004400 [ 32.478180] RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 [ 32.485419] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 32.492661] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 32.499907] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 32.507161] Code: c0 79 1d 84 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 ec 8b 53 fd 48 8d bb 14 02 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 14 28 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f [ 32.526239] RIP: rdma_listen+0x72/0x8e0 RSP: ffff8801adcf7948 [ 32.532161] ---[ end trace 7540ad667ee5f1f1 ]--- [ 32.536914] Kernel panic - not syncing: Fatal exception [ 32.542677] Dumping ftrace buffer: [ 32.546193] (ftrace buffer empty) [ 32.549873] Kernel Offset: disabled [ 32.553471] Rebooting in 86400 seconds..