Warning: Permanently added '10.128.0.79' (ECDSA) to the list of known hosts. [ 37.283833] random: sshd: uninitialized urandom read (32 bytes read) [ 37.390949] audit: type=1400 audit(1542993321.824:7): avc: denied { map } for pid=1783 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/11/23 17:15:22 parsed 1 programs [ 37.908093] audit: type=1400 audit(1542993322.334:8): avc: denied { map } for pid=1783 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=4999 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 38.435214] random: cc1: uninitialized urandom read (8 bytes read) 2018/11/23 17:15:24 executed programs: 0 [ 39.681325] audit: type=1400 audit(1542993324.104:9): avc: denied { map } for pid=1783 comm="syz-execprog" path="/root/syzkaller-shm169718251" dev="sda1" ino=16461 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 42.660617] ------------[ cut here ]------------ [ 42.665433] WARNING: CPU: 0 PID: 2253 at fs/direct-io.c:293 dio_complete+0x578/0x800 [ 42.673287] Kernel panic - not syncing: panic_on_warn set ... [ 42.673287] [ 42.680629] CPU: 0 PID: 2253 Comm: syz-executor0 Not tainted 4.14.83+ #9 [ 42.687440] Call Trace: [ 42.690013] dump_stack+0xb9/0x11b [ 42.693533] ? dio_complete+0x4c0/0x800 [ 42.697596] panic+0x1bf/0x3a4 [ 42.700772] ? add_taint.cold.4+0x16/0x16 [ 42.704898] ? __probe_kernel_read+0x163/0x1c0 [ 42.709459] ? dio_complete+0x578/0x800 [ 42.713408] __warn.cold.7+0x2f/0x35 [ 42.717096] ? dio_complete+0x578/0x800 [ 42.721049] report_bug+0x1f7/0x26c [ 42.724662] do_error_trap+0x1ba/0x2c0 [ 42.728646] ? math_error+0x2d0/0x2d0 [ 42.732427] ? clear_shadow_entry+0x190/0x190 [ 42.736906] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.741899] invalid_op+0x18/0x40 [ 42.745333] RIP: 0010:dio_complete+0x578/0x800 [ 42.749887] RSP: 0018:ffff8801c92b7070 EFLAGS: 00010297 [ 42.755240] RAX: ffff8801c9a9c680 RBX: ffff8801ca912d80 RCX: 0000000000000000 [ 42.762484] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c9a9c6a4 [ 42.769732] RBP: 0000000000010000 R08: 1ffff1003909e000 R09: 0000000000000000 [ 42.777124] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c315c4a8 [ 42.784379] R13: 0000000000010000 R14: 0000000000000002 R15: ffff8801ca912e18 [ 42.791811] ? ext4_update_bh_state+0xe0/0xe0 [ 42.796289] __blockdev_direct_IO+0x7614/0xc4e0 [ 42.800948] ? sb_init_dio_done_wq+0x70/0x70 [ 42.805458] ? trace_hardirqs_on+0x10/0x10 [ 42.809687] ? ext4_dio_get_block_unwritten_async+0x1b0/0x1b0 [ 42.815886] ? ext4_dio_get_block_unwritten_async+0x1b0/0x1b0 [ 42.821748] ext4_direct_IO+0x905/0x27f0 [ 42.825805] ? __filemap_fdatawait_range+0x1c2/0x260 [ 42.830883] ? ext4_da_write_begin+0x1050/0x1050 [ 42.835633] ? current_time+0x89/0xb0 [ 42.839412] ? filemap_check_errors+0x8b/0xb0 [ 42.843884] generic_file_direct_write+0x225/0x430 [ 42.848793] __generic_file_write_iter+0x213/0x540 [ 42.853701] ? generic_write_checks+0x252/0x410 [ 42.858350] ext4_file_write_iter+0x4f6/0xe20 [ 42.862938] ? ext4_file_mmap+0x1a0/0x1a0 [ 42.867070] ? kasan_kmalloc.part.1+0xa9/0xd0 [ 42.871700] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 42.876178] ? __kmalloc+0x153/0x340 [ 42.879869] ? iter_file_splice_write+0x142/0xab0 [ 42.884685] ? direct_splice_actor+0x116/0x160 [ 42.889250] ? splice_direct_to_actor+0x28c/0x750 [ 42.894076] ? do_splice_direct+0x17b/0x220 [ 42.898405] do_iter_readv_writev+0x3a4/0x560 [ 42.902883] ? clone_verify_area+0x1e0/0x1e0 [ 42.907274] ? security_file_permission+0x88/0x1e0 [ 42.912205] do_iter_write+0x156/0x530 [ 42.916074] ? kasan_unpoison_shadow+0x30/0x40 [ 42.920630] ? kasan_kmalloc+0x76/0xc0 [ 42.924504] vfs_iter_write+0x70/0xa0 [ 42.928486] iter_file_splice_write+0x5b4/0xab0 [ 42.933144] ? vmsplice_to_user+0x1e0/0x1e0 [ 42.937466] ? avc_policy_seqno+0x5/0x10 [ 42.941508] ? vmsplice_to_user+0x1e0/0x1e0 [ 42.945811] direct_splice_actor+0x116/0x160 [ 42.950200] splice_direct_to_actor+0x28c/0x750 [ 42.954844] ? pipe_to_sendpage+0x300/0x300 [ 42.959143] ? do_splice_to+0x150/0x150 [ 42.963105] ? security_file_permission+0x88/0x1e0 [ 42.968011] do_splice_direct+0x17b/0x220 [ 42.972134] ? splice_direct_to_actor+0x750/0x750 [ 42.976963] ? rcu_read_lock_sched_held+0x102/0x120 [ 42.981957] do_sendfile+0x4a1/0xb50 [ 42.985649] ? do_compat_pwritev64+0x170/0x170 [ 42.990214] ? _copy_to_user+0x7f/0xc0 [ 42.994081] ? put_timespec64+0xb9/0x110 [ 42.998124] ? nsecs_to_jiffies+0x30/0x30 [ 43.002262] SyS_sendfile64+0x11f/0x140 [ 43.006227] ? SyS_sendfile+0x150/0x150 [ 43.010177] ? do_clock_gettime+0xb0/0xb0 [ 43.014302] ? do_syscall_64+0x43/0x4b0 [ 43.018249] ? SyS_sendfile+0x150/0x150 [ 43.022198] do_syscall_64+0x19b/0x4b0 [ 43.026068] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.031235] RIP: 0033:0x457569 [ 43.034503] RSP: 002b:00007f9abb036c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 43.042288] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457569 [ 43.049533] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000008 [ 43.056781] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 43.064040] R10: 00008000fffffffe R11: 0000000000000246 R12: 00007f9abb0376d4 [ 43.071311] R13: 00000000004c3c2a R14: 00000000004d63d0 R15: 00000000ffffffff [ 43.079049] Kernel Offset: 0x19400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 43.090082] Rebooting in 86400 seconds..