[?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. [ 18.422114] audit: type=1400 audit(1520532251.580:6): avc: denied { map } for pid=4165 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.17' (ECDSA) to the list of known hosts. syzkaller login: [ 24.719831] audit: type=1400 audit(1520532257.878:7): avc: denied { map } for pid=4179 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 18:04:18 parsed 1 programs 2018/03/08 18:04:18 executed programs: 0 [ 24.971186] audit: type=1400 audit(1520532258.129:8): avc: denied { map } for pid=4179 comm="syz-execprog" path="/root/syzkaller-shm429555582" 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 [ 24.989041] IPVS: ftp: loaded support on port[0] = 21 [ 25.027981] kasan: CONFIG_KASAN_INLINE enabled [ 25.032635] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.040030] general protection fault: 0000 [#1] SMP KASAN [ 25.045549] Dumping ftrace buffer: [ 25.049058] (ftrace buffer empty) [ 25.052736] Modules linked in: [ 25.055902] CPU: 1 PID: 4187 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #256 [ 25.063141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.072472] RIP: 0010:ucma_set_ib_path.isra.14+0x26a/0x850 [ 25.078064] RSP: 0018:ffff8801baeef7d0 EFLAGS: 00010202 [ 25.083394] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000029 [ 25.090636] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000148 [ 25.097876] RBP: ffff8801baeef9d0 R08: ffffed00375ddf14 R09: ffffffff867a1b5c [ 25.105122] R10: 0000000000000002 R11: ffffed00375ddf13 R12: ffff8801baeef880 [ 25.112363] R13: 1ffff100375ddefc R14: ffff8801bd9fe1b0 R15: ffff8801afa48900 [ 25.119602] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000087db900 [ 25.127796] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 25.133647] CR2: 0000000008138024 CR3: 00000001bad4d002 CR4: 00000000001606e0 [ 25.140896] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.148137] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.155405] Call Trace: [ 25.157979] ? find_held_lock+0x35/0x1d0 [ 25.162017] ? ucma_event_handler+0xfa0/0xfa0 [ 25.166498] ? __might_fault+0x110/0x1d0 [ 25.170538] ? lock_downgrade+0x980/0x980 [ 25.174673] ? __might_sleep+0x95/0x190 [ 25.178626] ? kasan_check_write+0x14/0x20 [ 25.182830] ? _copy_from_user+0x99/0x110 [ 25.186959] ucma_set_option+0x252/0x4d0 [ 25.190988] ? ucma_set_option+0x252/0x4d0 [ 25.195195] ? ucma_set_ib_path.isra.14+0x850/0x850 [ 25.200183] ? kasan_check_write+0x14/0x20 [ 25.204397] ? _copy_from_user+0x99/0x110 [ 25.208515] ucma_write+0x2d6/0x3d0 [ 25.212110] ? ucma_set_ib_path.isra.14+0x850/0x850 [ 25.217098] ? ucma_resolve_route+0x1a0/0x1a0 [ 25.221568] ? ucma_resolve_route+0x1a0/0x1a0 [ 25.226036] __vfs_write+0xef/0x970 [ 25.229634] ? rcu_note_context_switch+0x710/0x710 [ 25.234544] ? kernel_read+0x120/0x120 [ 25.238402] ? __might_sleep+0x95/0x190 [ 25.242348] ? _cond_resched+0x14/0x30 [ 25.246205] ? __inode_security_revalidate+0xd9/0x130 [ 25.251363] ? avc_policy_seqno+0x9/0x20 [ 25.255402] ? selinux_file_permission+0x82/0x460 [ 25.260224] ? security_file_permission+0x89/0x1e0 [ 25.265129] ? rw_verify_area+0xe5/0x2b0 [ 25.269160] ? __fdget_raw+0x20/0x20 [ 25.272850] vfs_write+0x189/0x510 [ 25.276370] SyS_write+0xef/0x220 [ 25.279793] ? __do_page_fault+0x3d6/0xc90 [ 25.283998] ? SyS_read+0x220/0x220 [ 25.287604] ? do_fast_syscall_32+0x156/0xf9f [ 25.292076] ? SyS_read+0x220/0x220 [ 25.295673] do_fast_syscall_32+0x3ec/0xf9f [ 25.299971] ? do_int80_syscall_32+0x9c0/0x9c0 [ 25.304522] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 25.309248] ? syscall_return_slowpath+0x2ac/0x550 [ 25.314153] ? prepare_exit_to_usermode+0x350/0x350 [ 25.319150] ? sysret32_from_system_call+0x5/0x3c [ 25.323965] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.328780] entry_SYSENTER_compat+0x70/0x7f [ 25.333157] RIP: 0023:0xf7fc8c99 [ 25.336492] RSP: 002b:00000000ffeeabec EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 25.344169] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020001340 [ 25.351418] RDX: 000000000000034d RSI: 0000000000000000 RDI: 0000000000000000 [ 25.358657] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 25.365897] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 25.373143] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 25.380390] Code: 00 00 48 c1 ea 03 80 3c 02 00 0f 85 0d 05 00 00 49 8b 07 48 ba 00 00 00 00 00 fc ff df 48 8d b8 48 01 00 00 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 54 05 00 00 48 c1 e3 04 48 03 98 48 01 00 00 [ 25.399462] RIP: ucma_set_ib_path.isra.14+0x26a/0x850 RSP: ffff8801baeef7d0 [ 25.406589] ---[ end trace 88fe3df3977279c9 ]--- [ 25.411340] Kernel panic - not syncing: Fatal exception [ 25.417085] Dumping ftrace buffer: [ 25.420598] (ftrace buffer empty) [ 25.424276] Kernel Offset: disabled [ 25.427871] Rebooting in 86400 seconds..