[?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. [ 18.126416] audit: type=1400 audit(1521538548.069:6): avc: denied { map } for pid=4224 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 '10.128.0.55' (ECDSA) to the list of known hosts. executing program executing program executing program executing program syzkaller login: [ 24.469297] audit: type=1400 audit(1521538554.412:7): avc: denied { map } for pid=4238 comm="syzkaller118029" path="/root/syzkaller118029881" 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 [ 24.513550] kasan: CONFIG_KASAN_INLINE enabled [ 24.518193] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.525623] general protection fault: 0000 [#1] SMP KASAN [ 24.531141] Dumping ftrace buffer: [ 24.534651] (ftrace buffer empty) [ 24.538332] Modules linked in: [ 24.541495] CPU: 1 PID: 4240 Comm: syzkaller118029 Not tainted 4.16.0-rc6+ #360 [ 24.548910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.558242] RIP: 0010:rdma_notify+0x2c/0xf0 [ 24.562528] RSP: 0018:ffff8801afd4fa18 EFLAGS: 00010206 [ 24.567863] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff841ba114 [ 24.575102] RDX: 0000000000000078 RSI: 0000000000000000 RDI: 00000000000003c0 [ 24.582341] RBP: ffff8801afd4fa30 R08: 0000000000000000 R09: 0000000000000000 [ 24.589580] R10: ffffffff88613400 R11: 0000000000000000 R12: ffff8801ad582dc0 [ 24.596817] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801aff61580 [ 24.604058] FS: 00007f733f43a700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 24.612252] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.618102] CR2: 00007f733f418e78 CR3: 00000001b06f5006 CR4: 00000000001606e0 [ 24.625341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.632581] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.639818] Call Trace: [ 24.642380] ucma_notify+0x11e/0x1a0 [ 24.646063] ? ucma_bind_ip+0x190/0x190 [ 24.650014] ? kasan_check_write+0x14/0x20 [ 24.654224] ? _copy_from_user+0x99/0x110 [ 24.658341] ucma_write+0x2d6/0x3d0 [ 24.661937] ? ucma_bind_ip+0x190/0x190 [ 24.665880] ? ucma_resolve_route+0x1a0/0x1a0 [ 24.670358] ? ucma_resolve_route+0x1a0/0x1a0 [ 24.674824] __vfs_write+0xef/0x970 [ 24.678424] ? rcu_note_context_switch+0x710/0x710 [ 24.683324] ? kernel_read+0x120/0x120 [ 24.687185] ? __might_sleep+0x95/0x190 [ 24.691132] ? _cond_resched+0x14/0x30 [ 24.694991] ? __inode_security_revalidate+0xd9/0x130 [ 24.700154] ? avc_policy_seqno+0x9/0x20 [ 24.704183] ? selinux_file_permission+0x82/0x460 [ 24.708998] ? security_file_permission+0x89/0x1e0 [ 24.713904] ? rw_verify_area+0xe5/0x2b0 [ 24.717936] ? __fdget_raw+0x20/0x20 [ 24.721622] vfs_write+0x189/0x510 [ 24.725133] SyS_write+0xef/0x220 [ 24.728557] ? exit_to_usermode_loop+0x198/0x2f0 [ 24.733283] ? SyS_read+0x220/0x220 [ 24.736878] ? do_syscall_64+0xb7/0x940 [ 24.740820] ? SyS_read+0x220/0x220 [ 24.744421] do_syscall_64+0x281/0x940 [ 24.748277] ? _raw_spin_unlock_irq+0x27/0x70 [ 24.752741] ? finish_task_switch+0x1c1/0x7e0 [ 24.757205] ? syscall_return_slowpath+0x550/0x550 [ 24.762111] ? syscall_return_slowpath+0x2ac/0x550 [ 24.767016] ? prepare_exit_to_usermode+0x350/0x350 [ 24.772008] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 24.777348] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.782160] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 24.787321] RIP: 0033:0x445749 [ 24.790481] RSP: 002b:00007f733f439da8 EFLAGS: 00000297 ORIG_RAX: 0000000000000001 [ 24.798157] RAX: ffffffffffffffda RBX: 00000000006dac3c RCX: 0000000000445749 [ 24.805396] RDX: 0000000000000010 RSI: 0000000020008640 RDI: 0000000000000004 [ 24.812633] RBP: 00000000006dac38 R08: 0000000000000000 R09: 0000000000000000 executing program [ 24.819873] R10: 0000000000000000 R11: 0000000000000297 R12: 006d635f616d6472 [ 24.827110] R13: 2f646e6162696e69 R14: 666e692f7665642f R15: 0000000000000006 [ 24.834356] Code: 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ec 77 55 fd 48 8d bb 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 00 00 00 4c 8b a3 c0 03 00 00 4d 85 e4 0f [ 24.853422] RIP: rdma_notify+0x2c/0xf0 RSP: ffff8801afd4fa18 [ 24.859278] ---[ end trace 2712c1d4c0455c8f ]--- [ 24.864047] Kernel panic - not syncing: Fatal exception [ 24.869835] Dumping ftrace buffer: [ 24.873347] (ftrace buffer empty) [ 24.877026] Kernel Offset: disabled [ 24.880624] Rebooting in 86400 seconds..