random: sshd: uninitialized urandom read (32 bytes read, 58 bits of entropy available)
random: sshd: uninitialized urandom read (32 bytes read, 126 bits of entropy available)
random: nonblocking pool is initialized
IPVS: Creating netns size=2552 id=1
==================================================================
BUG: KASAN: slab-out-of-bounds in ip6_dst_idev include/net/ip6_fib.h:141 [inline]
BUG: KASAN: slab-out-of-bounds in ip6_xmit+0x1a2c/0x1a70 net/ipv6/ip6_output.c:237
Read of size 8 at addr ffff8800aadc68d8 by task syz-executor0/4114

CPU: 1 PID: 4114 Comm: syz-executor0 Not tainted 4.4.120-gd63fdf6 #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 e6ee46edd885e680 ffff8801c4637768 ffffffff81d0408d
 ffffea0002ab7180 ffff8800aadc68d8 0000000000000000 ffff8800aadc68d8
 0000000000000040 ffff8801c46377a0 ffffffff814fe143 ffff8800aadc68d8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814fe143>] print_address_description+0x73/0x260 mm/kasan/report.c:252
 [<ffffffff814fe655>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff814fe655>] kasan_report+0x285/0x370 mm/kasan/report.c:408
 [<ffffffff814fe7b4>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429
 [<ffffffff8330649c>] ip6_dst_idev include/net/ip6_fib.h:141 [inline]
 [<ffffffff8330649c>] ip6_xmit+0x1a2c/0x1a70 net/ipv6/ip6_output.c:237
 [<ffffffff833c70f6>] inet6_csk_xmit+0x246/0x480 net/ipv6/inet6_connection_sock.c:176
 [<ffffffff83459bef>] l2tp_xmit_core net/l2tp/l2tp_core.c:1084 [inline]
 [<ffffffff83459bef>] l2tp_xmit_skb+0xc2f/0xea0 net/l2tp/l2tp_core.c:1179
 [<ffffffff834666d4>] pppol2tp_sendmsg+0x584/0x7f0 net/l2tp/l2tp_ppp.c:355
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff81006d91>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d91>] do_fast_syscall_32+0x321/0x8a0 arch/x86/entry/common.c:459
 [<ffffffff837752ea>] sysenter_flags_fixed+0xd/0x17

Allocated by task 0:
(stack is not available)

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8800aadc68c0
 which belongs to the cache ip_dst_cache of size 208
The buggy address is located 24 bytes inside of
 208-byte region [ffff8800aadc68c0, ffff8800aadc6990)
The buggy address belongs to the page:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3845 Comm: syz-executor0 Not tainted 4.4.120-gd63fdf6 #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b04f9800 task.stack: ffff8801d8a88000
RIP: 0010:[<ffffffff811a6cad>]  [<ffffffff811a6cad>] task_curr kernel/sched/core.c:1023 [inline]
RIP: 0010:[<ffffffff811a6cad>]  [<ffffffff811a6cad>] kick_process+0xdd/0x1c0 kernel/sched/core.c:1565
RSP: 0018:ffff8801d8a8fa20  EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 000000000001f4c0 RCX: ffffffff81d63e4b
RDX: 0000000071d8e0f1 RSI: ffffffff839fe520 RDI: 000000038ec70788
RBP: ffff8801d8a8fa40 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 1ffff1003b151efc R12: ffff8801d7081800
R13: 00000000814909c1 R14: 00000000814909c1 R15: ffff8801d86fe1c0
FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000420c000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d7081800 0000000000000080 dffffc0000000000 ffff8800addadc80
 ffff8801d8a8fa60 ffffffff81153bd5 ffff8801d7081800 ffff8801d7081800
 ffff8801d8a8fab8 ffffffff811541d6 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff81153bd5>] signal_wake_up_state+0x55/0x70 kernel/signal.c:660
 [<ffffffff811541d6>] signal_wake_up include/linux/sched.h:3319 [inline]
 [<ffffffff811541d6>] complete_signal+0x5b6/0x700 kernel/signal.c:942
 [<ffffffff81155b1f>] __send_signal+0x90f/0x1330 kernel/signal.c:1080
 [<ffffffff8115658a>] send_signal+0x4a/0xc0 kernel/signal.c:1096
 [<ffffffff81158d14>] do_send_sig_info+0xa4/0x130 kernel/signal.c:1151
 [<ffffffff81158dd3>] send_sig_info+0x33/0x50 kernel/signal.c:1432
 [<ffffffff8133695e>] zap_pid_ns_processes+0x1de/0x690 kernel/pid_namespace.c:223
 [<ffffffff811345d2>] find_child_reaper kernel/exit.c:477 [inline]
 [<ffffffff811345d2>] forget_original_parent kernel/exit.c:563 [inline]
 [<ffffffff811345d2>] exit_notify kernel/exit.c:599 [inline]
 [<ffffffff811345d2>] do_exit+0x1ed2/0x2a10 kernel/exit.c:776
 [<ffffffff811393c8>] do_group_exit+0x108/0x320 kernel/exit.c:885
 [<ffffffff811395fd>] SYSC_exit_group kernel/exit.c:896 [inline]
 [<ffffffff811395fd>] SyS_exit_group+0x1d/0x20 kernel/exit.c:894
 [<ffffffff81006d91>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d91>] do_fast_syscall_32+0x321/0x8a0 arch/x86/entry/common.c:459
 [<ffffffff837752ea>] sysenter_flags_fixed+0xd/0x17
Code: 04 02 84 c0 74 08 3c 03 0f 8e b7 00 00 00 48 b8 00 00 00 00 00 fc ff df 45 8b 6d 10 4a 8d 3c ed 80 b9 7e 84 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 be 00 00 00 4a 03 1c ed 80 b9 7e 84 48 b8 00 
RIP  [<ffffffff811a6cad>] task_curr kernel/sched/core.c:1023 [inline]
RIP  [<ffffffff811a6cad>] kick_process+0xdd/0x1c0 kernel/sched/core.c:1565
 RSP <ffff8801d8a8fa20>
---[ end trace e413db979212272d ]---