binder: BINDER_SET_CONTEXT_MGR already set
binder: 6603:6629 ioctl 40046207 0 returned -16
==================================================================
BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:218 [inline]
BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:27 [inline]
BUG: KASAN: use-after-free in __atomic_add_unless arch/x86/include/asm/atomic.h:212 [inline]
BUG: KASAN: use-after-free in atomic_add_unless include/linux/atomic.h:437 [inline]
BUG: KASAN: use-after-free in sk_dst_get include/net/sock.h:1741 [inline]
BUG: KASAN: use-after-free in pppol2tp_connect+0x1631/0x1930 net/l2tp/l2tp_ppp.c:755
Read of size 4 at addr ffff8801cc3f9800 by task syz-executor6/6628

CPU: 1 PID: 6628 Comm: syz-executor6 Not tainted 4.4.114-gfe09418 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 cf20cbcf07d9c64a ffff8801bf48fb28 ffffffff81d02e6d
 ffffea000730fe40 ffff8801cc3f9800 0000000000000000 ffff8801cc3f9800
 1ffff10037e91f82 ffff8801bf48fb60 ffffffff814fd6f3 ffff8801cc3f9800
Call Trace:
 [<ffffffff81d02e6d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d02e6d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814fd6f3>] print_address_description+0x73/0x260 mm/kasan/report.c:252
 [<ffffffff814fdc05>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff814fdc05>] kasan_report+0x285/0x370 mm/kasan/report.c:408
 [<ffffffff814fdd44>] __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:428
 [<ffffffff834622b1>] __read_once_size include/linux/compiler.h:218 [inline]
 [<ffffffff834622b1>] atomic_read arch/x86/include/asm/atomic.h:27 [inline]
 [<ffffffff834622b1>] __atomic_add_unless arch/x86/include/asm/atomic.h:212 [inline]
 [<ffffffff834622b1>] atomic_add_unless include/linux/atomic.h:437 [inline]
 [<ffffffff834622b1>] sk_dst_get include/net/sock.h:1741 [inline]
 [<ffffffff834622b1>] pppol2tp_connect+0x1631/0x1930 net/l2tp/l2tp_ppp.c:755
 [<ffffffff82deb406>] SYSC_connect+0x1b6/0x310 net/socket.c:1557
 [<ffffffff82dedc74>] SyS_connect+0x24/0x30 net/socket.c:1538
 [<ffffffff8377341f>] entry_SYSCALL_64_fastpath+0x1c/0x98

Allocated by task 5962:
 [<ffffffff81035df6>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814fc763>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814fca2d>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814fca2d>] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:616
 [<ffffffff814fd002>] kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:554
 [<ffffffff814f86da>] slab_post_alloc_hook mm/slub.c:1349 [inline]
 [<ffffffff814f86da>] slab_alloc_node mm/slub.c:2615 [inline]
 [<ffffffff814f86da>] slab_alloc mm/slub.c:2623 [inline]
 [<ffffffff814f86da>] kmem_cache_alloc+0xba/0x290 mm/slub.c:2628
 [<ffffffff82e684af>] dst_alloc+0x11f/0x1a0 net/core/dst.c:210
 [<ffffffff830c0ab8>] rt_dst_alloc+0x78/0x430 net/ipv4/route.c:1467
 [<ffffffff830c9f4e>] __mkroute_output net/ipv4/route.c:2120 [inline]
 [<ffffffff830c9f4e>] __ip_route_output_key_hash+0xa4e/0x2390 net/ipv4/route.c:2332
 [<ffffffff830cc329>] __ip_route_output_key include/net/route.h:123 [inline]
 [<ffffffff830cc329>] ip_route_output_flow+0x29/0xa0 net/ipv4/route.c:2418
 [<ffffffff83193f32>] ip_route_connect include/net/route.h:303 [inline]
 [<ffffffff83193f32>] __ip4_datagram_connect+0x652/0x1150 net/ipv4/datagram.c:51
 [<ffffffff833b7931>] __ip6_datagram_connect+0x1401/0x1950 net/ipv6/datagram.c:105
 [<ffffffff833b7eaf>] ip6_datagram_connect+0x2f/0x50 net/ipv6/datagram.c:223
 [<ffffffff831cedfb>] inet_dgram_connect+0x16b/0x1f0 net/ipv4/af_inet.c:550
 [<ffffffff82deb406>] SYSC_connect+0x1b6/0x310 net/socket.c:1557
 [<ffffffff82dedc74>] SyS_connect+0x24/0x30 net/socket.c:1538
 [<ffffffff8377341f>] entry_SYSCALL_64_fastpath+0x1c/0x98

Freed by task 5982:
 [<ffffffff81035df6>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814fc763>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814fd082>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814fd082>] kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:589
 [<ffffffff814f97c7>] slab_free_hook mm/slub.c:1383 [inline]
 [<ffffffff814f97c7>] slab_free_freelist_hook mm/slub.c:1405 [inline]
 [<ffffffff814f97c7>] slab_free mm/slub.c:2859 [inline]
 [<ffffffff814f97c7>] kmem_cache_free+0xc7/0x320 mm/slub.c:2881
 [<ffffffff82e6914e>] dst_destroy+0x20e/0x330 net/core/dst.c:270
 [<ffffffff82e69795>] dst_destroy_rcu+0x15/0x40 net/core/dst.c:295
 [<ffffffff812945e4>] __rcu_reclaim kernel/rcu/rcu.h:118 [inline]
 [<ffffffff812945e4>] rcu_do_batch kernel/rcu/tree.c:2705 [inline]
 [<ffffffff812945e4>] invoke_rcu_callbacks kernel/rcu/tree.c:2973 [inline]
 [<ffffffff812945e4>] __rcu_process_callbacks kernel/rcu/tree.c:2940 [inline]
 [<ffffffff812945e4>] rcu_process_callbacks+0x7f4/0x14a0 kernel/rcu/tree.c:2957
 [<ffffffff83776917>] __do_softirq+0x227/0xa38 kernel/softirq.c:273

The buggy address belongs to the object at ffff8801cc3f9780
 which belongs to the cache ip_dst_cache of size 208
The buggy address is located 128 bytes inside of
 208-byte region [ffff8801cc3f9780, ffff8801cc3f9850)
The buggy address belongs to the page:
BUG: unable to handle kernel paging request at fffffffb8ec6b0c8
IP: [<ffffffff8122aa85>] cpuacct_charge+0x155/0x390 kernel/sched/cpuacct.c:247
PGD 420f067 PUD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 6629 Comm: syz-executor3 Not tainted 4.4.114-gfe09418 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c1bfaf80 task.stack: ffff8800bab10000
RIP: 0010:[<ffffffff8122aa85>]  [<ffffffff8122aa85>] cpuacct_charge+0x155/0x390 kernel/sched/cpuacct.c:247
RSP: 0018:ffff8801db207a20  EFLAGS: 00010046
RAX: 1ffffffff0854fff RBX: 0000000000018528 RCX: ffffffff847eb540
RDX: fffffbff71d8d619 RSI: fffffffb8ec6b0c8 RDI: ffffffff842a7ff8
RBP: ffff8801db207a68 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed0043fffa01 R11: 0000000000000000 R12: ffffffff842a7f20
R13: dffffc0000000000 R14: 00000000001d43f9 R15: ffffffff8148ff71
FS:  00007f9233d35700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffb8ec6b0c8 CR3: 00000000af8f0000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff8122a990 00000000ffffffff ffff8801db207a70 ffffffff81d62c1b
 ffff8801c1bf9820 ffffffff838443e0 00000000001d43f9 ffff8801c1bf9870
 ffff8801c1bf97c0 ffff8801db207ab8 ffffffff811dd077 ffff8801db31f4c0
Call Trace:
 <IRQ> 
 [<ffffffff811dd077>] update_curr+0x2c7/0x6c0 kernel/sched/fair.c:882
 [<ffffffff811e5203>] enqueue_entity kernel/sched/fair.c:3511 [inline]
 [<ffffffff811e5203>] enqueue_task_fair+0x313/0x2940 kernel/sched/fair.c:4694
 [<ffffffff811bb898>] enqueue_task kernel/sched/core.c:856 [inline]
 [<ffffffff811bb898>] activate_task+0x148/0x270 kernel/sched/core.c:872
 [<ffffffff811bc83f>] ttwu_activate kernel/sched/core.c:1734 [inline]
 [<ffffffff811bc83f>] ttwu_do_activate.constprop.131+0xbf/0x1e0 kernel/sched/core.c:1787
 [<ffffffff811bfc2d>] ttwu_queue kernel/sched/core.c:1932 [inline]
 [<ffffffff811bfc2d>] try_to_wake_up+0x68d/0xf60 kernel/sched/core.c:2066
 [<ffffffff811c0685>] default_wake_function+0x35/0x50 kernel/sched/core.c:3491
 [<ffffffff812200f3>] autoremove_wake_function+0x13/0x90 kernel/sched/wait.c:293
 [<ffffffff8121ec44>] __wake_up_common+0xb4/0x150 kernel/sched/wait.c:73
 [<ffffffff8121ed14>] __wake_up+0x34/0x50 kernel/sched/wait.c:95
 [<ffffffff8126b466>] wake_up_klogd_work_func+0x56/0x80 kernel/printk/printk.c:2736
 [<ffffffff813e51aa>] irq_work_run_list+0xca/0x140 kernel/irq_work.c:156
 [<ffffffff813e580e>] irq_work_tick+0x10e/0x170 kernel/irq_work.c:182
 [<ffffffff812aa612>] update_process_times+0x52/0x70 kernel/time/timer.c:1430
 [<ffffffff812d4cb5>] tick_sched_handle.isra.16+0x55/0xf0 kernel/time/tick-sched.c:151
 [<ffffffff812d65d2>] tick_sched_timer+0x72/0x120 kernel/time/tick-sched.c:1097
 [<ffffffff812acdf6>] __run_hrtimer kernel/time/hrtimer.c:1255 [inline]
 [<ffffffff812acdf6>] __hrtimer_run_queues+0x306/0xfe0 kernel/time/hrtimer.c:1319
 [<ffffffff812af2d6>] hrtimer_interrupt+0x1a6/0x440 kernel/time/hrtimer.c:1353
 [<ffffffff810b0cda>] local_apic_timer_interrupt+0x6a/0xb0 arch/x86/kernel/apic/apic.c:901
 [<ffffffff83776076>] smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:925
 [<ffffffff83774fd0>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:737
 <EOI> 
 [<ffffffff81269abe>] vprintk_emit+0x55e/0x850 kernel/printk/printk.c:1832
 [<ffffffff81269dd8>] vprintk+0x28/0x30 kernel/printk/printk.c:1843
 [<ffffffff81269dfd>] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1844
 [<ffffffff8141ae2d>] printk+0xb7/0xe2 kernel/printk/printk.c:1922
 [<ffffffff82c90327>] binder_ioctl+0x557/0x12e0 drivers/android/binder.c:4805
 [<ffffffff81558f8a>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<ffffffff81558f8a>] do_vfs_ioctl+0x7aa/0xee0 fs/ioctl.c:607
 [<ffffffff8155974f>] SYSC_ioctl fs/ioctl.c:622 [inline]
 [<ffffffff8155974f>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:613
 [<ffffffff8377341f>] entry_SYSCALL_64_fastpath+0x1c/0x98
Code: 49 8d bc 24 d8 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 9e 01 00 00 49 8b 9c 24 d8 00 00 00 80 3a 00 0f 85 0a 02 00 00 <4a> 03 1c f9 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 cf 01 00 
RIP  [<ffffffff8122aa85>] cpuacct_charge+0x155/0x390 kernel/sched/cpuacct.c:247
 RSP <ffff8801db207a20>
CR2: fffffffb8ec6b0c8
---[ end trace f2bb80b0572132ed ]---