random: sshd: uninitialized urandom read (32 bytes read, 103 bits of entropy available)
random: sshd: uninitialized urandom read (32 bytes read, 108 bits of entropy available)
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 ffff8800b595df18 by task syz-executor0/4059

CPU: 1 PID: 4059 Comm: syz-executor0 Not tainted 4.4.119-g024f962 #27
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 738f640e7d24d6fe ffff8800bbaff768 ffffffff81d0402d
 ffffea0002d65740 ffff8800b595df18 0000000000000000 ffff8800b595df18
 0000000000000040 ffff8800bbaff7a0 ffffffff814fe103 ffff8800b595df18
Call Trace:
 [<ffffffff81d0402d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0402d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814fe103>] print_address_description+0x73/0x260 mm/kasan/report.c:252
 [<ffffffff814fe615>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff814fe615>] kasan_report+0x285/0x370 mm/kasan/report.c:408
 [<ffffffff814fe774>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429
 [<ffffffff833062ac>] ip6_dst_idev include/net/ip6_fib.h:141 [inline]
 [<ffffffff833062ac>] ip6_xmit+0x1a2c/0x1a70 net/ipv6/ip6_output.c:237
 [<ffffffff833c6ed6>] inet6_csk_xmit+0x246/0x480 net/ipv6/inet6_connection_sock.c:176
 [<ffffffff834599cf>] l2tp_xmit_core net/l2tp/l2tp_core.c:1084 [inline]
 [<ffffffff834599cf>] l2tp_xmit_skb+0xc2f/0xea0 net/l2tp/l2tp_core.c:1179
 [<ffffffff834664b4>] pppol2tp_sendmsg+0x584/0x7f0 net/l2tp/l2tp_ppp.c:355
 [<ffffffff82deb87a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb87a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec7c8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deecc0>] 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
 [<ffffffff83774faa>] sysenter_flags_fixed+0xd/0x17

Allocated by task 4059:
 [<ffffffff81035d96>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814fd173>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814fd43d>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814fd43d>] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:616
 [<ffffffff814fda12>] kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:554
 [<ffffffff814f90ea>] slab_post_alloc_hook mm/slub.c:1349 [inline]
 [<ffffffff814f90ea>] slab_alloc_node mm/slub.c:2615 [inline]
 [<ffffffff814f90ea>] slab_alloc mm/slub.c:2623 [inline]
 [<ffffffff814f90ea>] kmem_cache_alloc+0xba/0x290 mm/slub.c:2628
 [<ffffffff82e6945f>] dst_alloc+0x11f/0x1a0 net/core/dst.c:210
 [<ffffffff830c25e8>] rt_dst_alloc+0x78/0x430 net/ipv4/route.c:1467
 [<ffffffff830cba7e>] __mkroute_output net/ipv4/route.c:2120 [inline]
 [<ffffffff830cba7e>] __ip_route_output_key_hash+0xa4e/0x2390 net/ipv4/route.c:2332
 [<ffffffff830cde59>] __ip_route_output_key include/net/route.h:123 [inline]
 [<ffffffff830cde59>] ip_route_output_flow+0x29/0xa0 net/ipv4/route.c:2418
 [<ffffffff83195a12>] ip_route_connect include/net/route.h:303 [inline]
 [<ffffffff83195a12>] __ip4_datagram_connect+0x652/0x1150 net/ipv4/datagram.c:51
 [<ffffffff833b8e11>] __ip6_datagram_connect+0x1401/0x1950 net/ipv6/datagram.c:105
 [<ffffffff833b938f>] ip6_datagram_connect+0x2f/0x50 net/ipv6/datagram.c:223
 [<ffffffff831d082b>] inet_dgram_connect+0x16b/0x1f0 net/ipv4/af_inet.c:550
 [<ffffffff82dec3a6>] SYSC_connect+0x1b6/0x310 net/socket.c:1557
 [<ffffffff82deec14>] SyS_connect+0x24/0x30 net/socket.c:1538
 [<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
 [<ffffffff83774faa>] sysenter_flags_fixed+0xd/0x17

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8800b595ddc0
 which belongs to the cache ip_dst_cache of size 208
The buggy address is located 136 bytes to the right of
 208-byte region [ffff8800b595ddc0, ffff8800b595de90)
The buggy address belongs to the page:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access[   28.882197] ------------[ cut here ]------------
WARNING: CPU: 0 PID: 3790 at kernel/sched/core.c:7944 __might_sleep+0x138/0x1a0 kernel/sched/core.c:7939()
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff81138a30>] do_wait+0x270/0xa20 kernel/exit.c:1503