[....] Starting enhanced syslogd: rsyslogd[ 17.093253] audit: type=1400 audit(1520390177.139:5): avc: denied { syslog } for pid=4086 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: [ 23.768320] audit: type=1400 audit(1520390183.814:6): 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 '10.128.0.51' (ECDSA) to the list of known hosts. [ 30.067679] audit: type=1400 audit(1520390190.113:7): avc: denied { map } for pid=4240 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 02:36:30 parsed 1 programs 2018/03/07 02:36:30 executed programs: 0 [ 30.316350] audit: type=1400 audit(1520390190.362:8): avc: denied { map } for pid=4240 comm="syz-execprog" path="/root/syzkaller-shm817385061" 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 [ 30.352809] IPVS: ftp: loaded support on port[0] = 21 [ 30.624279] kasan: CONFIG_KASAN_INLINE enabled [ 30.628970] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.636335] general protection fault: 0000 [#1] SMP KASAN [ 30.641853] Dumping ftrace buffer: [ 30.645360] (ftrace buffer empty) [ 30.649042] Modules linked in: [ 30.652205] CPU: 0 PID: 4382 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #253 [ 30.659444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.668771] RIP: 0010:rdma_disconnect+0x2d/0x200 [ 30.673502] RSP: 0018:ffff8801af7d79c0 EFLAGS: 00010206 [ 30.678835] RAX: dffffc0000000000 RBX: 1ffff10035efaf3f RCX: ffffffff841bc3fc [ 30.686076] RDX: 0000000000000078 RSI: 0000000000000000 RDI: 0000000000000000 [ 30.693317] RBP: ffff8801af7d79e8 R08: 0000000000000000 R09: 0000000000000000 [ 30.700555] R10: ffffffff88613380 R11: 0000000000000000 R12: ffff8801af40d200 [ 30.707796] R13: 00000000000003c0 R14: 0000000000000000 R15: 00000000200001c8 [ 30.715040] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f7efcb40 [ 30.723236] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.729088] CR2: 000000000813b029 CR3: 00000001af8fd005 CR4: 00000000001606f0 [ 30.736328] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.743565] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.750802] Call Trace: [ 30.753364] ucma_disconnect+0xdf/0x150 [ 30.757311] ? ucma_init_qp_attr+0x3e0/0x3e0 [ 30.761693] ? kasan_check_write+0x14/0x20 [ 30.765900] ? _copy_from_user+0x99/0x110 [ 30.770024] ucma_write+0x2d6/0x3d0 [ 30.773622] ? ucma_init_qp_attr+0x3e0/0x3e0 [ 30.777999] ? ucma_resolve_route+0x1a0/0x1a0 [ 30.782473] ? ucma_resolve_route+0x1a0/0x1a0 [ 30.786940] __vfs_write+0xef/0x970 [ 30.790537] ? rcu_note_context_switch+0x710/0x710 [ 30.795439] ? kernel_read+0x120/0x120 [ 30.799295] ? __might_sleep+0x95/0x190 [ 30.803243] ? _cond_resched+0x14/0x30 [ 30.807101] ? __inode_security_revalidate+0xd9/0x130 [ 30.812258] ? avc_policy_seqno+0x9/0x20 [ 30.816289] ? selinux_file_permission+0x82/0x460 [ 30.821105] ? security_file_permission+0x89/0x1e0 [ 30.826007] ? rw_verify_area+0xe5/0x2b0 [ 30.830043] ? __fdget_raw+0x20/0x20 [ 30.833726] vfs_write+0x189/0x510 [ 30.837236] SyS_write+0xef/0x220 [ 30.840658] ? exit_to_usermode_loop+0x198/0x2f0 [ 30.845383] ? SyS_read+0x220/0x220 [ 30.848980] ? do_fast_syscall_32+0x156/0xf9f [ 30.853446] ? SyS_read+0x220/0x220 [ 30.857049] do_fast_syscall_32+0x3ec/0xf9f [ 30.861351] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.865825] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.870373] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.874838] ? finish_task_switch+0x1c1/0x7e0 [ 30.879304] ? syscall_return_slowpath+0x2ac/0x550 [ 30.884203] ? prepare_exit_to_usermode+0x350/0x350 [ 30.889188] ? sysret32_from_system_call+0x5/0x3c [ 30.894004] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.898836] entry_SYSENTER_compat+0x70/0x7f [ 30.903211] RIP: 0023:0xf7f21c99 [ 30.906544] RSP: 002b:00000000f7efc09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 30.914221] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200001c0 [ 30.921462] RDX: 000000000000000c RSI: 0000000000000000 RDI: 0000000000000000 [ 30.928699] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.935942] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.943180] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.950424] Code: 89 e5 41 57 41 56 49 89 fe 41 55 41 54 4d 8d ae c0 03 00 00 53 e8 34 42 55 fd 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 b8 01 00 00 4d 8b a6 c0 03 00 00 4d 85 e4 0f [ 30.969493] RIP: rdma_disconnect+0x2d/0x200 RSP: ffff8801af7d79c0 [ 30.975743] ---[ end trace 417046330e8d1526 ]--- [ 30.980493] Kernel panic - not syncing: Fatal exception [ 30.986321] Dumping ftrace buffer: [ 30.989834] (ftrace buffer empty) [ 30.993511] Kernel Offset: disabled [ 30.997104] Rebooting in 86400 seconds..