[?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. [ 17.243523] audit: type=1400 audit(1520691624.912:6): avc: denied { map } for pid=4209 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 '10.128.0.62' (ECDSA) to the list of known hosts. syzkaller login: [ 40.448877] audit: type=1400 audit(1520691648.117:7): avc: denied { map } for pid=4227 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 2018/03/10 14:20:48 parsed 1 programs 2018/03/10 14:20:48 executed programs: 0 [ 40.688393] audit: type=1400 audit(1520691648.357:8): avc: denied { map } for pid=4227 comm="syz-execprog" path="/root/syzkaller-shm159463213" 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 [ 40.699073] IPVS: ftp: loaded support on port[0] = 21 [ 40.830176] kasan: CONFIG_KASAN_INLINE enabled [ 40.834898] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.842525] general protection fault: 0000 [#1] SMP KASAN [ 40.848040] Dumping ftrace buffer: [ 40.851552] (ftrace buffer empty) [ 40.855233] Modules linked in: [ 40.858398] CPU: 0 PID: 4265 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #258 [ 40.865641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.875062] RIP: 0010:ucma_query_route+0x15e/0x1080 [ 40.880052] RSP: 0018:ffff8801d29278c0 EFLAGS: 00010202 [ 40.885386] RAX: dffffc0000000000 RBX: 1ffff1003a524f1c RCX: 0000000000000000 [ 40.892628] RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffff8801b3605bf0 [ 40.899872] RBP: ffff8801d2927a70 R08: ffffed003a524f41 R09: ffff8801d2927940 [ 40.907114] R10: 0000000000000019 R11: ffffed003a524f40 R12: ffff8801b3605b80 [ 40.914352] R13: ffff8801d2927940 R14: 0000000000000020 R15: 0000000000000000 [ 40.921596] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f7fb2b40 [ 40.929793] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 40.935646] CR2: 000000000813b029 CR3: 00000001cca08002 CR4: 00000000001606f0 [ 40.942890] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.950137] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.957377] Call Trace: [ 40.959941] ? ucma_leave_multicast+0x860/0x860 [ 40.964588] ? lock_downgrade+0x980/0x980 [ 40.968725] ucma_write+0x2d6/0x3d0 [ 40.972320] ? ucma_write+0x2d6/0x3d0 [ 40.976090] ? ucma_leave_multicast+0x860/0x860 [ 40.980727] ? ucma_resolve_route+0x1a0/0x1a0 [ 40.985200] ? ucma_resolve_route+0x1a0/0x1a0 [ 40.989665] __vfs_write+0xef/0x970 [ 40.993261] ? rcu_note_context_switch+0x710/0x710 [ 40.998160] ? kernel_read+0x120/0x120 [ 41.002018] ? __might_sleep+0x95/0x190 [ 41.005964] ? _cond_resched+0x14/0x30 [ 41.009825] ? __inode_security_revalidate+0xd9/0x130 [ 41.014987] ? avc_policy_seqno+0x9/0x20 [ 41.019021] ? selinux_file_permission+0x82/0x460 [ 41.023836] ? security_file_permission+0x89/0x1e0 [ 41.028738] ? rw_verify_area+0xe5/0x2b0 [ 41.032855] ? __fdget_raw+0x20/0x20 [ 41.036545] vfs_write+0x189/0x510 [ 41.040058] SyS_write+0xef/0x220 [ 41.043489] ? SyS_read+0x220/0x220 [ 41.047090] ? do_fast_syscall_32+0x156/0xf9f [ 41.051566] ? SyS_read+0x220/0x220 [ 41.055165] do_fast_syscall_32+0x3ec/0xf9f [ 41.059462] ? do_int80_syscall_32+0x9c0/0x9c0 [ 41.064014] ? finish_task_switch+0x1c1/0x7e0 [ 41.068482] ? syscall_return_slowpath+0x2ac/0x550 [ 41.073383] ? prepare_exit_to_usermode+0x350/0x350 [ 41.078372] ? sysret32_from_system_call+0x5/0x3c [ 41.083191] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.088013] entry_SYSENTER_compat+0x70/0x7f [ 41.092392] RIP: 0023:0xf7fd7c99 [ 41.095724] RSP: 002b:00000000f7fb209c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 41.103401] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000200027c0 [ 41.110644] RDX: 0000000000000018 RSI: 0000000000000000 RDI: 0000000000000000 [ 41.117888] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 41.125131] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 41.132370] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 41.139625] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bb 0c 00 00 4d 8b 7c 24 70 48 b8 00 00 00 00 00 fc ff df 4d 8d 77 20 4c 89 f2 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 [ 41.158733] RIP: ucma_query_route+0x15e/0x1080 RSP: ffff8801d29278c0 [ 41.165260] ---[ end trace 5eafa9844fa851b5 ]--- [ 41.170003] Kernel panic - not syncing: Fatal exception [ 41.175778] Dumping ftrace buffer: [ 41.179292] (ftrace buffer empty) [ 41.182971] Kernel Offset: disabled [ 41.186574] Rebooting in 86400 seconds..