[....] Starting enhanced syslogd: rsyslogd[ 16.016294] audit: type=1400 audit(1520446008.652:5): avc: denied { syslog } for pid=3946 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: [ 22.207972] audit: type=1400 audit(1520446014.843:6): avc: denied { map } for pid=4085 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 '10.128.0.23' (ECDSA) to the list of known hosts. [ 28.480114] audit: type=1400 audit(1520446021.115:7): avc: denied { map } for pid=4099 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 2018/03/07 18:07:01 parsed 1 programs 2018/03/07 18:07:01 executed programs: 0 [ 28.708421] audit: type=1400 audit(1520446021.344:8): avc: denied { map } for pid=4099 comm="syz-execprog" path="/root/syzkaller-shm121289481" 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 [ 28.717206] IPVS: ftp: loaded support on port[0] = 21 [ 28.764025] kasan: CONFIG_KASAN_INLINE enabled [ 28.768695] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.776065] general protection fault: 0000 [#1] SMP KASAN [ 28.781575] Dumping ftrace buffer: [ 28.785084] (ftrace buffer empty) [ 28.788763] Modules linked in: [ 28.791935] CPU: 0 PID: 4107 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #254 [ 28.799171] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.808504] RIP: 0010:rdma_init_qp_attr+0x8b/0x720 [ 28.813397] RSP: 0018:ffff8801cbf177f0 EFLAGS: 00010202 [ 28.818726] RAX: dffffc0000000000 RBX: ffff8801cbdc1b00 RCX: ffffffff841b86bf [ 28.825963] RDX: 0000000000000029 RSI: ffff8801cbf17978 RDI: 0000000000000148 [ 28.833199] RBP: ffff8801cbf17830 R08: ffffed00397e2f44 R09: ffff8801cbf1797c [ 28.840437] R10: 0000000000000000 R11: ffffed00397e2f43 R12: ffff8801cbf17978 [ 28.847675] R13: ffff8801cbf178b8 R14: 0000000000000000 R15: ffff8801cbf178b8 [ 28.854915] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000092de900 [ 28.863108] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 28.868955] CR2: 0000000008138024 CR3: 00000001cc1ef006 CR4: 00000000001606f0 [ 28.876194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.883432] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.890671] Call Trace: [ 28.893233] ucma_init_qp_attr+0x20b/0x3e0 [ 28.897438] ? ucma_notify+0x1a0/0x1a0 [ 28.901295] ? find_held_lock+0x35/0x1d0 [ 28.905330] ? __might_fault+0x110/0x1d0 [ 28.909360] ? lock_downgrade+0x980/0x980 [ 28.913478] ? lock_release+0xa40/0xa40 [ 28.917424] ? check_same_owner+0x320/0x320 [ 28.921723] ? kasan_check_write+0x14/0x20 [ 28.925928] ucma_write+0x2d6/0x3d0 [ 28.929522] ? ucma_notify+0x1a0/0x1a0 [ 28.933377] ? ucma_resolve_route+0x1a0/0x1a0 [ 28.937845] ? ucma_resolve_route+0x1a0/0x1a0 [ 28.942307] __vfs_write+0xef/0x970 [ 28.945904] ? rcu_note_context_switch+0x710/0x710 [ 28.950800] ? kernel_read+0x120/0x120 [ 28.954655] ? __might_sleep+0x95/0x190 [ 28.958598] ? _cond_resched+0x14/0x30 [ 28.962457] ? __inode_security_revalidate+0xd9/0x130 [ 28.967615] ? avc_policy_seqno+0x9/0x20 [ 28.971643] ? selinux_file_permission+0x82/0x460 [ 28.976455] ? security_file_permission+0x89/0x1e0 [ 28.981354] ? rw_verify_area+0xe5/0x2b0 [ 28.985385] ? __fdget_raw+0x20/0x20 [ 28.989066] vfs_write+0x189/0x510 [ 28.992576] SyS_write+0xef/0x220 [ 28.996000] ? __do_page_fault+0x3d6/0xc90 [ 29.000202] ? SyS_read+0x220/0x220 [ 29.003800] ? do_fast_syscall_32+0x156/0xf9f [ 29.008272] ? SyS_read+0x220/0x220 [ 29.011869] do_fast_syscall_32+0x3ec/0xf9f [ 29.016162] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.020711] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.025437] ? syscall_return_slowpath+0x2ac/0x550 [ 29.030333] ? prepare_exit_to_usermode+0x350/0x350 [ 29.035317] ? sysret32_from_system_call+0x5/0x3c [ 29.040128] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.044939] entry_SYSENTER_compat+0x70/0x7f [ 29.049314] RIP: 0023:0xf7fb1c99 [ 29.052647] RSP: 002b:00000000ffcf434c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 29.060328] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000040 [ 29.067566] RDX: 0000000000000018 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.074806] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.082043] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.089282] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.096526] 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 [ 29.115595] RIP: rdma_init_qp_attr+0x8b/0x720 RSP: ffff8801cbf177f0 [ 29.122020] ---[ end trace 95394630b51eecf3 ]--- [ 29.126760] Kernel panic - not syncing: Fatal exception [ 29.132423] Dumping ftrace buffer: [ 29.135933] (ftrace buffer empty) [ 29.139615] Kernel Offset: disabled [ 29.143212] Rebooting in 86400 seconds..