[?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. [ 18.541619] audit: type=1400 audit(1520544535.731:6): avc: denied { map } for pid=4220 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 '10.128.0.24' (ECDSA) to the list of known hosts. syzkaller login: [ 24.842455] audit: type=1400 audit(1520544542.032:7): avc: denied { map } for pid=4234 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 21:29:02 parsed 1 programs 2018/03/08 21:29:02 executed programs: 0 [ 25.095516] audit: type=1400 audit(1520544542.285:8): avc: denied { map } for pid=4234 comm="syz-execprog" path="/root/syzkaller-shm543598754" 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 [ 25.108268] IPVS: ftp: loaded support on port[0] = 21 [ 25.393997] kasan: CONFIG_KASAN_INLINE enabled [ 25.398607] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.405938] general protection fault: 0000 [#1] SMP KASAN [ 25.411441] Dumping ftrace buffer: [ 25.414948] (ftrace buffer empty) [ 25.418630] Modules linked in: [ 25.421795] CPU: 1 PID: 4311 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #256 [ 25.429033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.438362] RIP: 0010:__lock_acquire+0xa09/0x3e00 [ 25.443169] RSP: 0018:ffff8801b0d8f320 EFLAGS: 00010002 [ 25.448499] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 25.455737] RDX: 0000000000000046 RSI: 0000000000000000 RDI: ffffffff86ec9920 [ 25.462975] RBP: ffff8801b0d8f6b0 R08: ffffffff841cb7c9 R09: 0000000000000001 [ 25.470222] R10: 0000000000000000 R11: 0000000000000230 R12: 0000000000000000 [ 25.477460] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801ae620700 [ 25.484701] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7fbab40 [ 25.493256] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 25.499105] CR2: 000000000813b029 CR3: 00000001b05bc003 CR4: 00000000001606e0 [ 25.506348] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.513586] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.520831] Call Trace: [ 25.523391] ? __lock_acquire+0x664/0x3e00 [ 25.527592] ? print_irqtrace_events+0x270/0x270 [ 25.532318] ? __lockdep_init_map+0xe4/0x650 [ 25.536694] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.541853] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.547015] ? find_held_lock+0x35/0x1d0 [ 25.551054] ? __lock_acquire+0x664/0x3e00 [ 25.555257] ? ucma_destroy_id+0x269/0x4c0 [ 25.559467] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.564633] ? __might_sleep+0x95/0x190 [ 25.568579] ? ucma_destroy_id+0x269/0x4c0 [ 25.572789] ? __mutex_lock+0x16f/0x1a80 [ 25.576820] ? ucma_destroy_id+0x269/0x4c0 [ 25.581030] ? trace_hardirqs_off+0x10/0x10 [ 25.585320] ? trace_hardirqs_off+0x10/0x10 [ 25.589613] ? mutex_lock_io_nested+0x1900/0x1900 [ 25.594423] ? futex_wait+0x6a9/0x9a0 [ 25.598196] lock_acquire+0x1d5/0x580 [ 25.601965] ? lock_acquire+0x1d5/0x580 [ 25.605908] ? rdma_destroy_id+0xa9/0xda0 [ 25.610028] ? lock_release+0xa40/0xa40 [ 25.613971] ? lock_downgrade+0x980/0x980 [ 25.618094] ? lock_release+0xa40/0xa40 [ 25.622041] ? check_same_owner+0x320/0x320 [ 25.626333] ? do_raw_spin_trylock+0x190/0x190 [ 25.630883] _raw_spin_lock_irqsave+0x96/0xc0 [ 25.635344] ? rdma_destroy_id+0xa9/0xda0 [ 25.639459] rdma_destroy_id+0xa9/0xda0 [ 25.643409] ? trace_hardirqs_on+0xd/0x10 [ 25.647523] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.651987] ? wait_for_completion+0xe0/0x770 [ 25.656452] ? cma_release_dev+0x350/0x350 [ 25.660657] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 25.666423] ? do_wait_intr_irq+0x3e0/0x3e0 [ 25.670715] ? do_raw_spin_trylock+0x190/0x190 [ 25.675263] ? _raw_spin_unlock_irqrestore+0x31/0xc0 [ 25.680336] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.685320] ? trace_hardirqs_on+0xd/0x10 [ 25.689435] ? complete+0x62/0x80 [ 25.692859] ucma_destroy_id+0x2e9/0x4c0 [ 25.696887] ? ucma_close+0x2f0/0x2f0 [ 25.700655] ? __might_sleep+0x95/0x190 [ 25.704598] ? kasan_check_write+0x14/0x20 [ 25.708803] ? _copy_from_user+0x99/0x110 [ 25.712918] ucma_write+0x2d6/0x3d0 [ 25.716512] ? ucma_close+0x2f0/0x2f0 [ 25.720279] ? ucma_resolve_route+0x1a0/0x1a0 [ 25.724745] ? ucma_resolve_route+0x1a0/0x1a0 [ 25.729208] __vfs_write+0xef/0x970 [ 25.732803] ? rcu_note_context_switch+0x710/0x710 [ 25.737699] ? kernel_read+0x120/0x120 [ 25.741554] ? __might_sleep+0x95/0x190 [ 25.745498] ? _cond_resched+0x14/0x30 [ 25.749353] ? __inode_security_revalidate+0xd9/0x130 [ 25.754512] ? avc_policy_seqno+0x9/0x20 [ 25.758543] ? selinux_file_permission+0x82/0x460 [ 25.763356] ? security_file_permission+0x89/0x1e0 [ 25.768252] ? rw_verify_area+0xe5/0x2b0 [ 25.772283] ? __fdget_raw+0x20/0x20 [ 25.775965] vfs_write+0x189/0x510 [ 25.779472] SyS_write+0xef/0x220 [ 25.782897] ? exit_to_usermode_loop+0x198/0x2f0 [ 25.787620] ? SyS_read+0x220/0x220 [ 25.791214] ? do_fast_syscall_32+0x156/0xf9f [ 25.795679] ? SyS_read+0x220/0x220 [ 25.799274] do_fast_syscall_32+0x3ec/0xf9f [ 25.803568] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.808036] ? do_int80_syscall_32+0x9c0/0x9c0 [ 25.812584] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.817047] ? finish_task_switch+0x1c1/0x7e0 [ 25.821511] ? syscall_return_slowpath+0x2ac/0x550 [ 25.826410] ? prepare_exit_to_usermode+0x350/0x350 [ 25.831394] ? sysret32_from_system_call+0x5/0x3c [ 25.836207] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.841035] entry_SYSENTER_compat+0x70/0x7f [ 25.845419] RIP: 0023:0xf7fdfc99 [ 25.848758] RSP: 002b:00000000f7fba09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 25.856432] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000180 [ 25.863672] RDX: 0000000000000018 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.870911] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 25.878150] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 25.885388] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 25.892627] Code: 81 c4 60 03 00 00 44 89 d0 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 4c 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 0a 33 00 00 49 81 3b 60 ed 9f 87 41 bd 00 00 [ 25.911666] RIP: __lock_acquire+0xa09/0x3e00 RSP: ffff8801b0d8f320 [ 25.917954] ---[ end trace 4c818187a8e1b6b9 ]--- [ 25.922675] Kernel panic - not syncing: Fatal exception [ 25.928441] Dumping ftrace buffer: [ 25.931951] (ftrace buffer empty) [ 25.935629] Kernel Offset: disabled [ 25.939220] Rebooting in 86400 seconds..