SELinux:  policydb string SE Lifux does not match my string SE Linux
SELinux:  policydb string SE Lifux does not match my string SE Linux
==================================================================
BUG: KASAN: use-after-free in ip6_dst_idev include/net/ip6_fib.h:141 [inline]
BUG: KASAN: use-after-free in ip6_xmit+0x177c/0x1a00 net/ipv6/ip6_output.c:237
Read of size 8 at addr ffff8801d0f7ddd8 by task syz-executor4/20951

CPU: 1 PID: 20951 Comm: syz-executor4 Not tainted 4.4.153-g5e24b4e #90
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 90c416b5dd5f35cb ffff8801bbbaf5c8 ffffffff81e162ed
 ffffea000743df40 ffff8801d0f7ddd8 0000000000000000 ffff8801d0f7ddd8
 0000000000001000 ffff8801bbbaf600 ffffffff8151b4d9 ffff8801d0f7ddd8
Call Trace:
 [<ffffffff81e162ed>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81e162ed>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff8151b4d9>] print_address_description+0x6c/0x216 mm/kasan/report.c:252
 [<ffffffff8151b7f8>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff8151b7f8>] kasan_report.cold.7+0x175/0x2f7 mm/kasan/report.c:408
 [<ffffffff814fe784>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429
 [<ffffffff834361fc>] ip6_dst_idev include/net/ip6_fib.h:141 [inline]
 [<ffffffff834361fc>] ip6_xmit+0x177c/0x1a00 net/ipv6/ip6_output.c:237
 [<ffffffff834f63c5>] inet6_csk_xmit+0x245/0x490 net/ipv6/inet6_connection_sock.c:176
 [<ffffffff835a5a0c>] l2tp_xmit_core net/l2tp/l2tp_core.c:1084 [inline]
 [<ffffffff835a5a0c>] l2tp_xmit_skb+0xb9c/0xe80 net/l2tp/l2tp_core.c:1179
 [<ffffffff835b1f60>] pppol2tp_sendmsg+0x4e0/0x7d0 net/l2tp/l2tp_ppp.c:355
 [<ffffffff82f2757c>] sock_sendmsg_nosec net/socket.c:638 [inline]
 [<ffffffff82f2757c>] sock_sendmsg+0xcc/0x110 net/socket.c:648
 [<ffffffff82f28d41>] ___sys_sendmsg+0x441/0x880 net/socket.c:1975
 [<ffffffff82f2b32e>] __sys_sendmmsg+0x12e/0x2e0 net/socket.c:2060
 [<ffffffff82f2b515>] SYSC_sendmmsg net/socket.c:2090 [inline]
 [<ffffffff82f2b515>] SyS_sendmmsg+0x35/0x60 net/socket.c:2085
 [<ffffffff838cc865>] entry_SYSCALL_64_fastpath+0x22/0x9e

Allocated by task 19565:
 [<ffffffff81034676>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814fd823>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814fdb07>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814fdb07>] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:616
 [<ffffffff814fe0d2>] kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:554
 [<ffffffff814f9bee>] slab_post_alloc_hook mm/slub.c:1349 [inline]
 [<ffffffff814f9bee>] slab_alloc_node mm/slub.c:2615 [inline]
 [<ffffffff814f9bee>] slab_alloc mm/slub.c:2623 [inline]
 [<ffffffff814f9bee>] kmem_cache_alloc+0xbe/0x2a0 mm/slub.c:2628
 [<ffffffff82fa5b35>] dst_alloc+0xb5/0x1a0 net/core/dst.c:210
 [<ffffffff831f2cc8>] rt_dst_alloc+0x78/0x430 net/ipv4/route.c:1478
 [<ffffffff831fc18c>] __mkroute_output net/ipv4/route.c:2132 [inline]
 [<ffffffff831fc18c>] __ip_route_output_key_hash+0x9ac/0x2380 net/ipv4/route.c:2344
 [<ffffffff831fe639>] __ip_route_output_key include/net/route.h:124 [inline]
 [<ffffffff831fe639>] ip_route_output_flow+0x29/0xa0 net/ipv4/route.c:2431
 [<ffffffff832daac0>] udp_sendmsg+0x1480/0x1c70 net/ipv4/udp.c:1040
 [<ffffffff8349fecd>] udpv6_sendmsg+0x12cd/0x24c0 net/ipv6/udp.c:1173
 [<ffffffff8330a933>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
 [<ffffffff82f2757c>] sock_sendmsg_nosec net/socket.c:638 [inline]
 [<ffffffff82f2757c>] sock_sendmsg+0xcc/0x110 net/socket.c:648
 [<ffffffff82f28d41>] ___sys_sendmsg+0x441/0x880 net/socket.c:1975
 [<ffffffff82f2b32e>] __sys_sendmmsg+0x12e/0x2e0 net/socket.c:2060
 [<ffffffff82f2b515>] SYSC_sendmmsg net/socket.c:2090 [inline]
 [<ffffffff82f2b515>] SyS_sendmmsg+0x35/0x60 net/socket.c:2085
 [<ffffffff838cc865>] entry_SYSCALL_64_fastpath+0x22/0x9e

Freed by task 14:
 [<ffffffff81034676>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814fd823>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814fe152>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814fe152>] kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:589
 [<ffffffff814fb33e>] slab_free_hook mm/slub.c:1383 [inline]
 [<ffffffff814fb33e>] slab_free_freelist_hook mm/slub.c:1405 [inline]
 [<ffffffff814fb33e>] slab_free mm/slub.c:2859 [inline]
 [<ffffffff814fb33e>] kmem_cache_free+0xbe/0x340 mm/slub.c:2881
 [<ffffffff82fa4de5>] dst_destroy.part.6+0x1f5/0x330 net/core/dst.c:270
 [<ffffffff82fa5465>] dst_destroy net/core/dst.c:252 [inline]
 [<ffffffff82fa5465>] dst_destroy_rcu+0x15/0x40 net/core/dst.c:295
 [<ffffffff81288d97>] __rcu_reclaim kernel/rcu/rcu.h:118 [inline]
 [<ffffffff81288d97>] rcu_do_batch kernel/rcu/tree.c:2705 [inline]
 [<ffffffff81288d97>] invoke_rcu_callbacks kernel/rcu/tree.c:2973 [inline]
 [<ffffffff81288d97>] __rcu_process_callbacks kernel/rcu/tree.c:2940 [inline]
 [<ffffffff81288d97>] rcu_process_callbacks+0x927/0x1440 kernel/rcu/tree.c:2957
 [<ffffffff838cfd7c>] __do_softirq+0x22c/0xa1a kernel/softirq.c:273

The buggy address belongs to the object at ffff8801d0f7ddc0
 which belongs to the cache ip_dst_cache of size 208
The buggy address is located 24 bytes inside of
 208-byte region [ffff8801d0f7ddc0, ffff8801d0f7de90)
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: 0 Comm: swapper/0 Not tainted 4.4.153-g5e24b4e #90
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffffffff84417840 task.stack: ffffffff84400000
RIP: 0010:[<ffffffff81e2609c>]  [<ffffffff81e2609c>] __rb_insert lib/rbtree.c:118 [inline]
RIP: 0010:[<ffffffff81e2609c>]  [<ffffffff81e2609c>] rb_insert_color+0x7c/0xca0 lib/rbtree.c:420
RSP: 0018:ffff8801db207ce0  EFLAGS: 00010806
RAX: 8000000000000088 RBX: 8000000000000080 RCX: 8000000000000080
RDX: 1000000000000011 RSI: ffff8801db219790 RDI: ffff8801db219cc0
RBP: ffff8801db207d20 R08: 0000000000000096 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff84417840 R12: ffffea000743df40
R13: ffff8801db219cc0 R14: ffff8801db219790 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f747642d000 CR3: 00000001da1a9000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff844bec20 0000000000000000 ffff8801db207d30 ffff8801db219cc0
 dffffc0000000000 0000000000000000 ffff8801db219790 ffffea000743df48
 ffff8801db207d70 ffffffff81e33d37 ffff8801db219cd8 ffff8801db219790
Call Trace:
 <IRQ> 
 [<ffffffff81e33d37>] timerqueue_add+0x157/0x2b0 lib/timerqueue.c:57
 [<ffffffff8129e3ff>] enqueue_hrtimer+0x15f/0x440 kernel/time/hrtimer.c:893
 [<ffffffff812a10f2>] __run_hrtimer kernel/time/hrtimer.c:1276 [inline]
 [<ffffffff812a10f2>] __hrtimer_run_queues+0x6b2/0x1000 kernel/time/hrtimer.c:1325
 [<ffffffff812a2561>] hrtimer_interrupt+0x1b1/0x430 kernel/time/hrtimer.c:1359
 [<ffffffff810af544>] local_apic_timer_interrupt+0x74/0xa0 arch/x86/kernel/apic/apic.c:901
 [<ffffffff838cf4dc>] smp_apic_timer_interrupt+0x7c/0xa0 arch/x86/kernel/apic/apic.c:925
 [<ffffffff838ce420>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:741
 <EOI> 
 [<ffffffff81025cd5>] arch_safe_halt arch/x86/include/asm/paravirt.h:117 [inline]
 [<ffffffff81025cd5>] default_idle+0x55/0x3c0 arch/x86/kernel/process.c:432
 [<ffffffff81027be0>] arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:423
 [<ffffffff8121ed27>] default_idle_call+0x57/0x70 kernel/sched/idle.c:93
 [<ffffffff8121f4cf>] cpuidle_idle_call kernel/sched/idle.c:157 [inline]
 [<ffffffff8121f4cf>] cpu_idle_loop kernel/sched/idle.c:253 [inline]
 [<ffffffff8121f4cf>] cpu_startup_entry+0x6af/0x780 kernel/sched/idle.c:301
 [<ffffffff838b99b1>] rest_init+0x188/0x18e init/main.c:410
 [<ffffffff84a4d8a1>] start_kernel+0x6b3/0x6e7 init/main.c:682
 [<ffffffff84a4c30f>] x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:196
 [<ffffffff84a4c450>] x86_64_start_kernel+0x13f/0x162 arch/x86/kernel/head64.c:185
Code: 0f 85 1a 07 00 00 49 8b 1c 24 f6 c3 01 0f 85 a6 01 00 00 49 bf 00 00 00 00 00 fc ff df 48 8d 43 08 48 89 d9 48 89 c2 48 c1 ea 03 <42> 80 3c 3a 00 0f 85 c5 06 00 00 4c 8b 73 08 4d 39 e6 0f 84 85 
RIP  [<ffffffff81e2609c>] __rb_insert lib/rbtree.c:118 [inline]
RIP  [<ffffffff81e2609c>] rb_insert_color+0x7c/0xca0 lib/rbtree.c:420
 RSP <ffff8801db207ce0>
---[ end trace 34db1fff8c0d060d ]---