[....] Starting enhanced syslogd: rsyslogd[ 17.672578] audit: type=1400 audit(1520530046.796:5): avc: denied { syslog } for pid=4100 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: [ 22.156837] audit: type=1400 audit(1520530051.280:6): avc: denied { map } for pid=4240 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 '10.128.10.2' (ECDSA) to the list of known hosts. [ 37.471927] audit: type=1400 audit(1520530066.595:7): avc: denied { map } for pid=4256 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 2018/03/08 17:27:46 parsed 1 programs 2018/03/08 17:27:46 executed programs: 0 [ 37.712963] audit: type=1400 audit(1520530066.835:8): avc: denied { map } for pid=4256 comm="syz-execprog" path="/root/syzkaller-shm441786674" 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 [ 37.745187] IPVS: ftp: loaded support on port[0] = 21 [ 37.774468] IPVS: ftp: loaded support on port[0] = 21 [ 37.802411] IPVS: ftp: loaded support on port[0] = 21 [ 37.830601] IPVS: ftp: loaded support on port[0] = 21 [ 37.856833] kasan: CONFIG_KASAN_INLINE enabled [ 37.861643] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.869044] general protection fault: 0000 [#1] SMP KASAN [ 37.872704] IPVS: ftp: loaded support on port[0] = 21 [ 37.874560] Dumping ftrace buffer: [ 37.874565] (ftrace buffer empty) [ 37.874566] Modules linked in: [ 37.874575] CPU: 1 PID: 4333 Comm: syz-executor7 Not tainted 4.16.0-rc4+ #256 [ 37.874581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.900530] IPVS: ftp: loaded support on port[0] = 21 [ 37.906720] RIP: 0010:ucma_accept+0x4eb/0x970 [ 37.906727] RSP: 0018:ffff8801ad937878 EFLAGS: 00010202 [ 37.921740] RAX: ffff8801ccb1e080 RBX: ffff8801ad9378f8 RCX: dffffc0000000000 [ 37.928995] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000020 [ 37.930802] IPVS: ftp: loaded support on port[0] = 21 [ 37.936241] RBP: ffff8801ad937a80 R08: 0000000000000000 R09: 1ffff10035b26f19 [ 37.936245] R10: ffffffff88613380 R11: 0000000000000000 R12: ffff8801ad9378b8 [ 37.936248] R13: ffff8801ad937a58 R14: ffff8801d7edd800 R15: ffff8801d7eddd00 [ 37.936252] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7efeb40 [ 37.936254] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 37.936257] CR2: 000000000813b029 CR3: 00000001cc32c005 CR4: 00000000001606e0 [ 37.936266] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.964721] IPVS: ftp: loaded support on port[0] = 21 [ 37.971418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.971422] Call Trace: [ 37.971441] ? ucma_reject+0x220/0x220 [ 37.971466] ? kasan_check_write+0x14/0x20 [ 38.014929] ucma_write+0x2d6/0x3d0 [ 38.018530] ? ucma_reject+0x220/0x220 [ 38.022387] ? ucma_resolve_route+0x1a0/0x1a0 [ 38.026856] ? ucma_resolve_route+0x1a0/0x1a0 [ 38.031322] __vfs_write+0xef/0x970 [ 38.034924] ? rcu_note_context_switch+0x710/0x710 [ 38.039829] ? kernel_read+0x120/0x120 [ 38.043692] ? __might_sleep+0x95/0x190 [ 38.047639] ? _cond_resched+0x14/0x30 [ 38.051498] ? __inode_security_revalidate+0xd9/0x130 [ 38.056659] ? avc_policy_seqno+0x9/0x20 [ 38.060692] ? selinux_file_permission+0x82/0x460 [ 38.065508] ? security_file_permission+0x89/0x1e0 [ 38.070410] ? rw_verify_area+0xe5/0x2b0 [ 38.074440] ? __fdget_raw+0x20/0x20 [ 38.078127] vfs_write+0x189/0x510 [ 38.081640] SyS_write+0xef/0x220 [ 38.085068] ? SyS_read+0x220/0x220 [ 38.088672] ? do_fast_syscall_32+0x156/0xf9f [ 38.093138] ? SyS_read+0x220/0x220 [ 38.096737] do_fast_syscall_32+0x3ec/0xf9f [ 38.101031] ? _raw_spin_unlock_irq+0x27/0x70 [ 38.105500] ? do_int80_syscall_32+0x9c0/0x9c0 [ 38.110057] ? _raw_spin_unlock_irq+0x27/0x70 [ 38.114527] ? finish_task_switch+0x1c1/0x7e0 [ 38.118995] ? syscall_return_slowpath+0x2ac/0x550 [ 38.123901] ? prepare_exit_to_usermode+0x350/0x350 [ 38.128889] ? sysret32_from_system_call+0x5/0x3c [ 38.133706] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.138520] entry_SYSENTER_compat+0x70/0x7f [ 38.142900] RIP: 0023:0xf7f23c99 [ 38.146234] RSP: 002b:00000000f7efe09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 38.153914] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000780 [ 38.161154] RDX: 0000000000000128 RSI: 0000000000000000 RDI: 0000000000000000 [ 38.168394] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 38.175637] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 38.182880] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 38.190129] Code: 0c 09 84 c9 74 09 80 f9 03 0f 8e 4a 02 00 00 49 8d 78 20 41 89 b5 70 fe ff ff 48 b9 00 00 00 00 00 fc ff df 48 89 fe 48 c1 ee 03 <0f> b6 34 0e 48 89 f9 83 e1 07 83 c1 01 40 38 f1 7c 09 40 84 f6 [ 38.209205] RIP: ucma_accept+0x4eb/0x970 RSP: ffff8801ad937878 [ 38.215244] ---[ end trace 0684f739684393c8 ]--- [ 38.219991] Kernel panic - not syncing: Fatal exception [ 38.225714] Dumping ftrace buffer: [ 38.229229] (ftrace buffer empty) [ 38.232914] Kernel Offset: disabled [ 38.236513] Rebooting in 86400 seconds..