[ 33.612965] audit: type=1800 audit(1563689146.858:33): pid=6903 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 [ 33.639775] audit: type=1800 audit(1563689146.858:34): pid=6903 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: [ 38.009795] random: sshd: uninitialized urandom read (32 bytes read) [ 38.363835] audit: type=1400 audit(1563689151.608:35): avc: denied { map } for pid=7076 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 [ 38.415978] random: sshd: uninitialized urandom read (32 bytes read) [ 38.999496] random: sshd: uninitialized urandom read (32 bytes read) [ 39.194404] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. [ 44.777409] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 44.906661] audit: type=1400 audit(1563689158.148:36): avc: denied { map } for pid=7088 comm="syz-executor332" path="/root/syz-executor332093320" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 44.909998] kasan: CONFIG_KASAN_INLINE enabled [ 44.937932] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.945729] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 44.952070] Modules linked in: [ 44.955305] CPU: 1 PID: 7088 Comm: syz-executor332 Not tainted 4.14.133 #28 [ 44.962666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.972006] task: ffff888097074340 task.stack: ffff888094c18000 [ 44.978111] RIP: 0010:rxrpc_connect_call+0xc9/0x41a0 [ 44.983203] RSP: 0018:ffff888094c1f738 EFLAGS: 00010206 [ 44.988637] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 00000000014000c0 [ 44.995984] RDX: 0000000000000003 RSI: ffff888094c1f998 RDI: 0000000000000018 [ 45.003295] RBP: ffff888094c1f880 R08: 0000000000000001 R09: ffff888097074be0 [ 45.010606] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808c312c00 [ 45.017985] R13: ffff888215da81a0 R14: ffff888215da8190 R15: ffff888094c1f998 [ 45.025342] FS: 0000000000bc1880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 45.033691] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.039654] CR2: 0000000020000040 CR3: 000000009a7d4000 CR4: 00000000001406e0 [ 45.047088] Call Trace: [ 45.049823] ? release_sock+0x14a/0x1b0 [ 45.053788] ? rxrpc_discard_expired_client_conns+0x7e0/0x7e0 [ 45.059696] ? __local_bh_enable_ip+0x99/0x1a0 [ 45.064307] ? trace_hardirqs_on_caller+0x400/0x590 [ 45.069316] ? release_sock+0x14a/0x1b0 [ 45.073277] ? trace_hardirqs_on+0xd/0x10 [ 45.077414] ? __local_bh_enable_ip+0x99/0x1a0 [ 45.081984] ? _raw_spin_unlock_bh+0x31/0x40 [ 45.086518] rxrpc_new_client_call+0x8f7/0x1420 [ 45.091186] ? rxrpc_do_sendmsg+0x91a/0x1103 [ 45.095697] rxrpc_do_sendmsg+0x91a/0x1103 [ 45.099932] ? rxrpc_kernel_send_data+0x470/0x470 [ 45.104920] ? __local_bh_enable_ip+0x99/0x1a0 [ 45.109539] rxrpc_sendmsg+0x48a/0x650 [ 45.113451] ? security_socket_sendmsg+0x89/0xb0 [ 45.118288] ? rxrpc_sock_destructor+0x130/0x130 [ 45.123455] sock_sendmsg+0xce/0x110 [ 45.127333] ___sys_sendmsg+0x349/0x840 [ 45.131290] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 45.136037] ? trace_hardirqs_on+0x10/0x10 [ 45.140273] ? save_trace+0x290/0x290 [ 45.145438] ? reacquire_held_locks+0xb7/0x3b0 [ 45.150098] ? release_sock+0x14a/0x1b0 [ 45.154351] ? __fget_light+0x172/0x1f0 [ 45.158500] ? __fdget+0x1b/0x20 [ 45.161855] ? sockfd_lookup_light+0xb4/0x160 [ 45.166339] __sys_sendmmsg+0x152/0x3a0 [ 45.170521] ? SyS_sendmsg+0x50/0x50 [ 45.174345] ? trace_hardirqs_on+0xd/0x10 [ 45.178480] ? __local_bh_enable_ip+0x99/0x1a0 [ 45.183055] ? _raw_spin_unlock_bh+0x31/0x40 [ 45.187628] ? SYSC_connect+0xe7/0x2d0 [ 45.191502] ? SYSC_bind+0x220/0x220 [ 45.195237] ? up_read+0x1a/0x40 [ 45.198709] ? __do_page_fault+0x358/0xb80 [ 45.203040] SyS_sendmmsg+0x35/0x60 [ 45.206660] ? __sys_sendmmsg+0x3a0/0x3a0 [ 45.210801] do_syscall_64+0x1e8/0x640 [ 45.215147] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.220050] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.225237] RIP: 0033:0x440249 [ 45.228760] RSP: 002b:00007ffd54dcf9a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 45.236725] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440249 [ 45.244172] RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003 [ 45.252053] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 45.259401] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ad0 [ 45.267046] R13: 0000000000401b60 R14: 0000000000000000 R15: 0000000000000000 [ 45.274304] 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 [ 45.293973] RIP: rxrpc_connect_call+0xc9/0x41a0 RSP: ffff888094c1f738 [ 45.301280] ---[ end trace 8d6edeb6a75db461 ]--- [ 45.306030] Kernel panic - not syncing: Fatal exception [ 45.312625] Kernel Offset: disabled [ 45.316261] Rebooting in 86400 seconds..