[....] Starting enhanced syslogd: rsyslogd[ 18.041961] audit: type=1400 audit(1521188372.250:5): avc: denied { syslog } for pid=4121 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 OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.648080] audit: type=1400 audit(1521188377.856:6): avc: denied { map } for pid=4260 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 '10.128.0.32' (ECDSA) to the list of known hosts. [ 29.967359] audit: type=1400 audit(1521188384.176:7): avc: denied { map } for pid=4274 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 2018/03/16 08:19:44 parsed 1 programs 2018/03/16 08:19:44 executed programs: 0 [ 30.225334] audit: type=1400 audit(1521188384.434:8): avc: denied { map } for pid=4274 comm="syz-execprog" path="/root/syzkaller-shm569614298" 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 [ 30.239788] IPVS: ftp: loaded support on port[0] = 21 [ 32.035554] kasan: CONFIG_KASAN_INLINE enabled [ 32.040550] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.048083] general protection fault: 0000 [#1] SMP KASAN [ 32.053612] Dumping ftrace buffer: [ 32.057125] (ftrace buffer empty) [ 32.060812] Modules linked in: [ 32.063979] CPU: 0 PID: 5331 Comm: syz-executor0 Not tainted 4.16.0-rc5+ #265 [ 32.071217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.080550] RIP: 0010:rdma_reject+0x37/0x220 [ 32.084937] RSP: 0018:ffff8801ad5cf8a8 EFLAGS: 00010206 [ 32.090268] RAX: dffffc0000000000 RBX: 1ffff10035ab9f1f RCX: ffffffff841bd2bf [ 32.097507] RDX: 0000000000000078 RSI: ffff8801ad5cf920 RDI: 00000000000003c0 [ 32.104753] RBP: ffff8801ad5cf8d8 R08: 0000000000000000 R09: 0000000000000000 [ 32.111999] R10: ffffffff886133c0 R11: 0000000000000000 R12: 0000000000000077 [ 32.119243] R13: ffff8801ad5cfa58 R14: ffff8801ad5cf920 R15: 0000000000000000 [ 32.126482] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f7eddb40 [ 32.134677] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 32.140526] CR2: 0000000008452798 CR3: 00000001d0584003 CR4: 00000000001606f0 [ 32.147767] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.155025] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.162267] Call Trace: [ 32.164841] ucma_reject+0x149/0x220 [ 32.168524] ? ucma_disconnect+0x150/0x150 [ 32.172743] ? kasan_check_write+0x14/0x20 [ 32.176947] ucma_write+0x2d6/0x3d0 [ 32.180541] ? ucma_disconnect+0x150/0x150 [ 32.184743] ? ucma_resolve_route+0x1a0/0x1a0 [ 32.189210] ? ucma_resolve_route+0x1a0/0x1a0 [ 32.193677] __vfs_write+0xef/0x970 [ 32.197282] ? rcu_note_context_switch+0x710/0x710 [ 32.202183] ? kernel_read+0x120/0x120 [ 32.206039] ? __might_sleep+0x95/0x190 [ 32.209985] ? _cond_resched+0x14/0x30 [ 32.213846] ? __inode_security_revalidate+0xd9/0x130 [ 32.219005] ? avc_policy_seqno+0x9/0x20 [ 32.223041] ? selinux_file_permission+0x82/0x460 [ 32.227862] ? security_file_permission+0x89/0x1e0 [ 32.232772] ? rw_verify_area+0xe5/0x2b0 [ 32.236807] ? __fdget_raw+0x20/0x20 [ 32.240493] vfs_write+0x189/0x510 [ 32.244008] SyS_write+0xef/0x220 [ 32.247437] ? SyS_read+0x220/0x220 [ 32.251040] ? do_fast_syscall_32+0x156/0xf9f [ 32.255510] ? SyS_read+0x220/0x220 [ 32.259112] do_fast_syscall_32+0x3ec/0xf9f [ 32.263411] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.267884] ? do_int80_syscall_32+0x9c0/0x9c0 [ 32.272439] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.276908] ? finish_task_switch+0x1c1/0x7e0 [ 32.281380] ? syscall_return_slowpath+0x2ac/0x550 [ 32.286283] ? prepare_exit_to_usermode+0x350/0x350 [ 32.291271] ? sysret32_from_system_call+0x5/0x3c [ 32.296098] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.300917] entry_SYSENTER_compat+0x70/0x7f [ 32.305297] RIP: 0023:0xf7f02c99 [ 32.308636] RSP: 002b:00000000f7edd09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 32.316320] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000440 [ 32.323561] RDX: 0000000000000110 RSI: 0000000000000000 RDI: 0000000000000000 [ 32.330804] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 32.338047] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 32.345288] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 32.352542] Code: 49 89 ff 53 41 89 d4 49 89 f6 48 83 ec 08 e8 e1 44 55 fd 49 8d bf 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 01 00 00 4d 8b af c0 03 00 00 4d 85 ed 0f [ 32.371622] RIP: rdma_reject+0x37/0x220 RSP: ffff8801ad5cf8a8 [ 32.377569] ---[ end trace feae0020ffd85584 ]--- [ 32.382322] Kernel panic - not syncing: Fatal exception [ 32.388116] Dumping ftrace buffer: [ 32.391641] (ftrace buffer empty) [ 32.395321] Kernel Offset: disabled [ 32.398919] Rebooting in 86400 seconds..