[....] Starting enhanced syslogd: rsyslogd[ 17.456116] audit: type=1400 audit(1520486007.750:5): avc: denied { syslog } for pid=4082 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: [ 23.105923] audit: type=1400 audit(1520486013.400:6): avc: denied { map } for pid=4222 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 '10.128.0.15' (ECDSA) to the list of known hosts. executing program [ 29.440706] audit: type=1400 audit(1520486019.735:7): avc: denied { map } for pid=4236 comm="syzkaller595147" path="/root/syzkaller595147440" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 29.450644] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program [ 29.493400] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program [ 29.517966] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 29.543922] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 29.569240] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program [ 29.594509] IPVS: ftp: loaded support on port[0] = 21 [ 29.609693] kasan: CONFIG_KASAN_INLINE enabled [ 29.614517] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.621890] general protection fault: 0000 [#1] SMP KASAN [ 29.625817] IPVS: ftp: loaded support on port[0] = 21 [ 29.627403] Dumping ftrace buffer: [ 29.627406] (ftrace buffer empty) [ 29.627407] Modules linked in: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 29.627416] CPU: 1 PID: 4307 Comm: syzkaller595147 Not tainted 4.16.0-rc4+ #345 [ 29.648764] IPVS: ftp: loaded support on port[0] = 21 [ 29.650355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.650367] RIP: 0010:rdma_listen+0x72/0x8e0 [ 29.650372] RSP: 0018:ffff8801b60bf998 EFLAGS: 00010207 [ 29.674608] RAX: 0000000000000042 RBX: 0000000000000000 RCX: ffffffff841d7a24 [ 29.681849] RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000214 [ 29.689088] RBP: ffff8801b60bfa30 R08: 0000000000000000 R09: 0000000000000000 [ 29.696331] R10: ffffffff88613380 R11: 0000000000000000 R12: 1ffff10036c17f35 [ 29.703572] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000400 [ 29.710812] FS: 00007f29d24eb700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.719006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.724856] CR2: 00007f29d24c9e78 CR3: 00000001b0558006 CR4: 00000000001606e0 [ 29.732099] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.739339] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.746581] Call Trace: [ 29.749146] ? rdma_resolve_addr+0x26c0/0x26c0 [ 29.753703] ucma_listen+0x172/0x1f0 [ 29.757391] ? ucma_accept+0x970/0x970 [ 29.761254] ? kasan_check_write+0x14/0x20 [ 29.765460] ? _copy_from_user+0x99/0x110 [ 29.769579] ucma_write+0x2d6/0x3d0 [ 29.773179] ? ucma_accept+0x970/0x970 [ 29.777039] ? ucma_resolve_route+0x1a0/0x1a0 [ 29.781509] ? ucma_resolve_route+0x1a0/0x1a0 [ 29.785975] __vfs_write+0xef/0x970 [ 29.789573] ? rcu_note_context_switch+0x710/0x710 [ 29.794478] ? kernel_read+0x120/0x120 [ 29.798338] ? __might_sleep+0x95/0x190 [ 29.802289] ? _cond_resched+0x14/0x30 [ 29.806147] ? __inode_security_revalidate+0xd9/0x130 [ 29.811306] ? avc_policy_seqno+0x9/0x20 [ 29.815338] ? selinux_file_permission+0x82/0x460 [ 29.820156] ? security_file_permission+0x89/0x1e0 [ 29.825055] ? rw_verify_area+0xe5/0x2b0 [ 29.829086] ? __fdget_raw+0x20/0x20 [ 29.832771] vfs_write+0x189/0x510 [ 29.836285] SyS_write+0xef/0x220 [ 29.839714] ? SyS_read+0x220/0x220 [ 29.843313] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.848298] ? do_syscall_64+0xb7/0x940 [ 29.852244] ? SyS_read+0x220/0x220 [ 29.855843] do_syscall_64+0x281/0x940 [ 29.859706] ? syscall_return_slowpath+0x550/0x550 [ 29.864618] ? syscall_return_slowpath+0x2ac/0x550 [ 29.869521] ? prepare_exit_to_usermode+0x350/0x350 [ 29.874510] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.879855] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.884672] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.889830] RIP: 0033:0x449b59 [ 29.892990] RSP: 002b:00007f29d24eada8 EFLAGS: 00000297 ORIG_RAX: 0000000000000001 [ 29.900667] RAX: ffffffffffffffda RBX: 00000000006dbc5c RCX: 0000000000449b59 [ 29.907972] RDX: 0000000000000010 RSI: 0000000020004400 RDI: 000000000000000c [ 29.915211] RBP: 00000000006dbc58 R08: 0000000000000000 R09: 0000000000000000 [ 29.922465] R10: 0000000000000000 R11: 0000000000000297 R12: 006d635f616d6472 [ 29.929705] R13: 2f646e6162696e69 R14: 666e692f7665642f R15: 0000000000000006 [ 29.936956] Code: c0 79 1d 84 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 ec 8b 53 fd 48 8d bb 14 02 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 14 28 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f [ 29.956039] RIP: rdma_listen+0x72/0x8e0 RSP: ffff8801b60bf998 [ 29.961953] ---[ end trace 387a11ed6fffdaf9 ]--- [ 29.966713] Kernel panic - not syncing: Fatal exception [ 29.972449] Dumping ftrace buffer: [ 29.975973] (ftrace buffer empty) [ 29.979657] Kernel Offset: disabled [ 29.983257] Rebooting in 86400 seconds..