[....] Starting enhanced syslogd: rsyslogd[ 16.799807] audit: type=1400 audit(1521832788.959:5): avc: denied { syslog } for pid=4085 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: [ 22.699552] audit: type=1400 audit(1521832794.859:6): avc: denied { map } for pid=4226 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 '10.128.0.19' (ECDSA) to the list of known hosts. [ 34.855291] audit: type=1400 audit(1521832807.015:7): avc: denied { map } for pid=4242 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 2018/03/23 19:20:07 parsed 1 programs 2018/03/23 19:20:07 executed programs: 0 [ 35.093566] audit: type=1400 audit(1521832807.250:8): avc: denied { map } for pid=4242 comm="syz-execprog" path="/root/syzkaller-shm033372235" 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 [ 35.124411] IPVS: ftp: loaded support on port[0] = 21 [ 35.159131] kasan: CONFIG_KASAN_INLINE enabled [ 35.163764] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.171132] general protection fault: 0000 [#1] SMP KASAN [ 35.176644] Dumping ftrace buffer: [ 35.180152] (ftrace buffer empty) [ 35.183830] Modules linked in: [ 35.186994] CPU: 0 PID: 4251 Comm: syz-executor0 Not tainted 4.16.0-rc6+ #273 [ 35.194232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.203572] RIP: 0010:rdma_init_qp_attr+0x8b/0x720 [ 35.208471] RSP: 0018:ffff8801b098f7f0 EFLAGS: 00010202 [ 35.213801] RAX: dffffc0000000000 RBX: ffff8801b2d46dc0 RCX: ffffffff841bbf8f [ 35.221048] RDX: 0000000000000029 RSI: ffff8801b098f978 RDI: 0000000000000148 [ 35.228286] RBP: ffff8801b098f830 R08: ffffed0036131f44 R09: ffff8801b098f97c [ 35.235523] R10: 0000000000000000 R11: ffffed0036131f43 R12: ffff8801b098f978 [ 35.242763] R13: ffff8801b098f8b8 R14: 0000000000000000 R15: ffff8801b098f878 [ 35.250010] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009d86900 [ 35.258203] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 35.264055] CR2: 0000000008138024 CR3: 00000001b1509002 CR4: 00000000001606f0 [ 35.271297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.278536] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.285773] Call Trace: [ 35.288336] ucma_init_qp_attr+0x251/0x440 [ 35.292541] ? ucma_notify+0x1a0/0x1a0 [ 35.296403] ? find_held_lock+0x35/0x1d0 [ 35.300436] ? __might_fault+0x110/0x1d0 [ 35.304464] ? lock_downgrade+0x980/0x980 [ 35.308579] ? lock_release+0xa40/0xa40 [ 35.312523] ? check_same_owner+0x320/0x320 [ 35.316819] ? kasan_check_write+0x14/0x20 [ 35.321027] ucma_write+0x2d6/0x3d0 [ 35.324621] ? ucma_notify+0x1a0/0x1a0 [ 35.328476] ? ucma_close_id+0x60/0x60 [ 35.332335] ? ucma_close_id+0x60/0x60 [ 35.336190] __vfs_write+0xef/0x970 [ 35.339788] ? rcu_note_context_switch+0x710/0x710 [ 35.344685] ? kernel_read+0x120/0x120 [ 35.348540] ? __might_sleep+0x95/0x190 [ 35.352486] ? _cond_resched+0x14/0x30 [ 35.356341] ? __inode_security_revalidate+0xd9/0x130 [ 35.361497] ? avc_policy_seqno+0x9/0x20 [ 35.365535] ? selinux_file_permission+0x82/0x460 [ 35.370350] ? security_file_permission+0x89/0x1e0 [ 35.375249] ? rw_verify_area+0xe5/0x2b0 [ 35.379277] ? __fdget_raw+0x20/0x20 [ 35.382962] vfs_write+0x189/0x510 [ 35.386498] SyS_write+0xef/0x220 [ 35.389919] ? __do_page_fault+0x3d6/0xc90 [ 35.394121] ? SyS_read+0x220/0x220 [ 35.397719] ? do_fast_syscall_32+0x156/0xf9f [ 35.402184] ? SyS_read+0x220/0x220 [ 35.405779] do_fast_syscall_32+0x3ec/0xf9f [ 35.410072] ? do_int80_syscall_32+0x9c0/0x9c0 [ 35.414622] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.419347] ? syscall_return_slowpath+0x2ac/0x550 [ 35.424243] ? prepare_exit_to_usermode+0x350/0x350 [ 35.429239] ? sysret32_from_system_call+0x5/0x3c [ 35.434053] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.438865] entry_SYSENTER_compat+0x70/0x7f [ 35.443240] RIP: 0023:0xf7f64c99 [ 35.446573] RSP: 002b:00000000ffebb66c EFLAGS: 00000282 ORIG_RAX: 0000000000000004 [ 35.454247] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000080 [ 35.461490] RDX: 0000000000000057 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.468728] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 35.475964] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 35.483200] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 35.490443] Code: 00 00 00 fc ff df 80 3c 02 00 0f 85 8c 06 00 00 4c 8b 33 48 b8 00 00 00 00 00 fc ff df 49 8d be 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 06 00 00 44 0f b6 7d d4 48 b8 00 00 00 00 [ 35.509508] RIP: rdma_init_qp_attr+0x8b/0x720 RSP: ffff8801b098f7f0 [ 35.515919] ---[ end trace f257c9105fd3b3a4 ]--- [ 35.520653] Kernel panic - not syncing: Fatal exception [ 35.526347] Dumping ftrace buffer: [ 35.529862] (ftrace buffer empty) [ 35.533542] Kernel Offset: disabled [ 35.537143] Rebooting in 86400 seconds..