[....] Starting enhanced syslogd: rsyslogd[ 16.468367] audit: type=1400 audit(1521538392.775:5): avc: denied { syslog } for pid=4074 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: [ 22.217052] audit: type=1400 audit(1521538398.523:6): avc: denied { map } for pid=4214 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 '10.128.0.8' (ECDSA) to the list of known hosts. [ 28.488828] audit: type=1400 audit(1521538404.795:7): avc: denied { map } for pid=4228 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 2018/03/20 09:33:25 parsed 1 programs 2018/03/20 09:33:25 executed programs: 0 [ 28.744252] audit: type=1400 audit(1521538405.050:8): avc: denied { map } for pid=4228 comm="syz-execprog" path="/root/syzkaller-shm918272593" 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 [ 28.771959] IPVS: ftp: loaded support on port[0] = 21 [ 29.047728] kasan: CONFIG_KASAN_INLINE enabled [ 29.052441] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.059985] general protection fault: 0000 [#1] SMP KASAN [ 29.065512] Dumping ftrace buffer: [ 29.069023] (ftrace buffer empty) [ 29.072709] Modules linked in: [ 29.075877] CPU: 1 PID: 4361 Comm: syz-executor0 Not tainted 4.16.0-rc6+ #270 [ 29.083115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.092453] RIP: 0010:rdma_notify+0x2c/0xf0 [ 29.096742] RSP: 0018:ffff8801b3b1f9c8 EFLAGS: 00010206 [ 29.102073] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff841ba114 [ 29.109316] RDX: 0000000000000078 RSI: 0000000000000000 RDI: 00000000000003c0 [ 29.116558] RBP: ffff8801b3b1f9e0 R08: 0000000000000000 R09: 0000000000000000 [ 29.123799] R10: ffffffff88613400 R11: 0000000000000000 R12: ffff8801b52fe340 [ 29.131037] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801b2afc680 [ 29.138277] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7fd3b40 [ 29.146472] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.152324] CR2: 000000000813b029 CR3: 00000001b2c1f002 CR4: 00000000001606e0 [ 29.159565] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.166806] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.174051] Call Trace: [ 29.176624] ucma_notify+0x11e/0x1a0 [ 29.180318] ? ucma_bind_ip+0x190/0x190 [ 29.184264] ? kasan_check_write+0x14/0x20 [ 29.188479] ? _copy_from_user+0x99/0x110 [ 29.192602] ucma_write+0x2d6/0x3d0 [ 29.196196] ? ucma_bind_ip+0x190/0x190 [ 29.200141] ? ucma_resolve_route+0x1a0/0x1a0 [ 29.204614] ? ucma_resolve_route+0x1a0/0x1a0 [ 29.209080] __vfs_write+0xef/0x970 [ 29.212679] ? rcu_note_context_switch+0x710/0x710 [ 29.217581] ? kernel_read+0x120/0x120 [ 29.221440] ? __might_sleep+0x95/0x190 [ 29.225388] ? _cond_resched+0x14/0x30 [ 29.229258] ? __inode_security_revalidate+0xd9/0x130 [ 29.234416] ? avc_policy_seqno+0x9/0x20 [ 29.238453] ? selinux_file_permission+0x82/0x460 [ 29.243269] ? security_file_permission+0x89/0x1e0 [ 29.248172] ? rw_verify_area+0xe5/0x2b0 [ 29.252201] ? __fdget_raw+0x20/0x20 [ 29.255889] vfs_write+0x189/0x510 [ 29.259402] SyS_write+0xef/0x220 [ 29.262825] ? SyS_read+0x220/0x220 [ 29.266423] ? do_fast_syscall_32+0x156/0xf9f [ 29.270901] ? SyS_read+0x220/0x220 [ 29.274499] do_fast_syscall_32+0x3ec/0xf9f [ 29.278790] ? _raw_spin_unlock_irq+0x27/0x70 [ 29.283265] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.287816] ? _raw_spin_unlock_irq+0x27/0x70 [ 29.292280] ? finish_task_switch+0x1c1/0x7e0 [ 29.296753] ? syscall_return_slowpath+0x2ac/0x550 [ 29.301654] ? prepare_exit_to_usermode+0x350/0x350 [ 29.306640] ? sysret32_from_system_call+0x5/0x3c [ 29.311460] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.316274] entry_SYSENTER_compat+0x70/0x7f [ 29.320651] RIP: 0023:0xf7ff8c99 [ 29.323989] RSP: 002b:00000000f7fd309c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 29.331676] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020008640 [ 29.338920] RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.346167] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.353410] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.360656] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.367907] Code: 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ec 77 55 fd 48 8d bb c0 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a0 00 00 00 4c 8b a3 c0 03 00 00 4d 85 e4 0f [ 29.386988] RIP: rdma_notify+0x2c/0xf0 RSP: ffff8801b3b1f9c8 [ 29.392821] ---[ end trace 9e8e7643f1e0857c ]--- [ 29.397580] Kernel panic - not syncing: Fatal exception [ 29.403351] Dumping ftrace buffer: [ 29.406868] (ftrace buffer empty) [ 29.410546] Kernel Offset: disabled [ 29.414143] Rebooting in 86400 seconds..