[ 33.198403] audit: type=1800 audit(1563688057.467:33): pid=6921 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 33.231599] audit: type=1800 audit(1563688057.507:34): pid=6921 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 37.849748] random: sshd: uninitialized urandom read (32 bytes read) [ 38.122766] audit: type=1400 audit(1563688062.397:35): avc: denied { map } for pid=7094 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 [ 38.173603] random: sshd: uninitialized urandom read (32 bytes read) [ 38.779434] random: sshd: uninitialized urandom read (32 bytes read) [ 38.977860] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.179' (ECDSA) to the list of known hosts. [ 44.529710] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 44.656123] audit: type=1400 audit(1563688068.927:36): avc: denied { map } for pid=7106 comm="syz-executor268" path="/root/syz-executor268431671" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 44.659834] kasan: CONFIG_KASAN_INLINE enabled [ 44.687447] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.695138] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 44.701365] Modules linked in: [ 44.704767] CPU: 0 PID: 7106 Comm: syz-executor268 Not tainted 4.14.133 #28 [ 44.711855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.721194] task: ffff88808397e300 task.stack: ffff8880a03c0000 [ 44.727389] RIP: 0010:rxrpc_connect_call+0xc9/0x41a0 [ 44.732474] RSP: 0018:ffff8880a03c7738 EFLAGS: 00010206 [ 44.737957] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 00000000014000c0 [ 44.745214] RDX: 0000000000000003 RSI: ffff8880a03c7998 RDI: 0000000000000018 [ 44.752476] RBP: ffff8880a03c7880 R08: 0000000000000001 R09: ffff88808397eba0 [ 44.759725] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809fe22c00 [ 44.766977] R13: ffff8882163d81e0 R14: ffff8882163d81d0 R15: ffff8880a03c7998 [ 44.774493] FS: 0000000001da7880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 [ 44.782758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.788664] CR2: 0000000020000040 CR3: 000000008f231000 CR4: 00000000001406f0 [ 44.795934] Call Trace: [ 44.798509] ? release_sock+0x14a/0x1b0 [ 44.802464] ? rxrpc_discard_expired_client_conns+0x7e0/0x7e0 [ 44.808330] ? __local_bh_enable_ip+0x99/0x1a0 [ 44.812893] ? trace_hardirqs_on_caller+0x400/0x590 [ 44.817885] ? release_sock+0x14a/0x1b0 [ 44.821891] ? trace_hardirqs_on+0xd/0x10 [ 44.826091] ? __local_bh_enable_ip+0x99/0x1a0 [ 44.830665] ? _raw_spin_unlock_bh+0x31/0x40 [ 44.835054] rxrpc_new_client_call+0x8f7/0x1420 [ 44.839701] ? rxrpc_do_sendmsg+0x91a/0x1103 [ 44.844094] rxrpc_do_sendmsg+0x91a/0x1103 [ 44.848366] ? rxrpc_kernel_send_data+0x470/0x470 [ 44.853243] ? __local_bh_enable_ip+0x99/0x1a0 [ 44.857929] rxrpc_sendmsg+0x48a/0x650 [ 44.861815] ? security_socket_sendmsg+0x89/0xb0 [ 44.866613] ? rxrpc_sock_destructor+0x130/0x130 [ 44.871358] sock_sendmsg+0xce/0x110 [ 44.875055] ___sys_sendmsg+0x349/0x840 [ 44.879007] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 44.883746] ? trace_hardirqs_on+0x10/0x10 [ 44.887955] ? save_trace+0x290/0x290 [ 44.891752] ? reacquire_held_locks+0xb7/0x3b0 [ 44.896313] ? release_sock+0x14a/0x1b0 [ 44.900277] ? __fget_light+0x172/0x1f0 [ 44.904234] ? __fdget+0x1b/0x20 [ 44.907578] ? sockfd_lookup_light+0xb4/0x160 [ 44.912066] __sys_sendmmsg+0x152/0x3a0 [ 44.916024] ? SyS_sendmsg+0x50/0x50 [ 44.919714] ? trace_hardirqs_on+0xd/0x10 [ 44.923846] ? __local_bh_enable_ip+0x99/0x1a0 [ 44.928418] ? _raw_spin_unlock_bh+0x31/0x40 [ 44.932814] ? SYSC_connect+0xe7/0x2d0 [ 44.936680] ? SYSC_bind+0x220/0x220 [ 44.940376] ? up_read+0x1a/0x40 [ 44.943719] ? __do_page_fault+0x358/0xb80 [ 44.948016] SyS_sendmmsg+0x35/0x60 [ 44.951627] ? __sys_sendmmsg+0x3a0/0x3a0 [ 44.955841] do_syscall_64+0x1e8/0x640 [ 44.959723] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.964553] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.969791] RIP: 0033:0x440249 [ 44.972965] RSP: 002b:00007fff4863f978 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 44.980658] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440249 [ 44.987912] RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003 [ 44.995209] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 45.002466] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ad0 [ 45.009733] R13: 0000000000401b60 R14: 0000000000000000 R15: 0000000000000000 [ 45.016989] Code: e8 03 80 3c 18 00 0f 85 6f 39 00 00 48 8b 85 28 ff ff ff 48 8b 18 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 8a 39 00 00 48 8b 5b 18 48 8d bb 00 02 00 00 [ 45.036080] RIP: rxrpc_connect_call+0xc9/0x41a0 RSP: ffff8880a03c7738 [ 45.043047] ---[ end trace 3dbf050e0d01c1e8 ]--- [ 45.047811] Kernel panic - not syncing: Fatal exception [ 45.054230] Kernel Offset: disabled [ 45.057851] Rebooting in 86400 seconds..