random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available)
random: sshd: uninitialized urandom read (32 bytes read, 119 bits of entropy available)
IPVS: Creating netns size=2552 id=1
==================================================================
BUG: KASAN: slab-out-of-bounds in pfkey_msg2xfrm_state net/key/af_key.c:1188 [inline]
BUG: KASAN: slab-out-of-bounds in pfkey_add+0x270e/0x3490 net/key/af_key.c:1506
Read of size 4096 at addr ffff8801c5286540 by task syz-executor0/3800

CPU: 1 PID: 3800 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 02e6116245fdcda7 ffff8801c5b176f8 ffffffff81d0408d
 ffffea000714a180 ffff8801c5286540 0000000000000000 ffff8801c5286700
 ffff8801c5b17938 ffff8801c5b17730 ffffffff814fe143 ffff8801c5286540
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
 [<ffffffff814fd097>] check_memory_region_inline mm/kasan/kasan.c:325 [inline]
 [<ffffffff814fd097>] check_memory_region+0x137/0x190 mm/kasan/kasan.c:332
 [<ffffffff814fd5d3>] memcpy+0x23/0x50 mm/kasan/kasan.c:367
 [<ffffffff83446f6e>] pfkey_msg2xfrm_state net/key/af_key.c:1188 [inline]
 [<ffffffff83446f6e>] pfkey_add+0x270e/0x3490 net/key/af_key.c:1506
 [<ffffffff8344a45b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff8344bcb9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82ded641>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82def693>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82eda56a>] C_SYSC_sendmsg net/compat.c:720 [inline]
 [<ffffffff82eda56a>] compat_SyS_sendmsg+0x2a/0x40 net/compat.c:718
 [<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 3800:
 [<ffffffff81035d96>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814fd1b3>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814fd47d>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814fd47d>] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:616
 [<ffffffff814fdc54>] kasan_krealloc+0x64/0x80 mm/kasan/kasan.c:654
 [<ffffffff814f6a52>] ksize+0x92/0xf0 mm/slub.c:3727
 [<ffffffff82e06b22>] __alloc_skb+0x132/0x600 net/core/skbuff.c:237
 [<ffffffff8344ba45>] alloc_skb include/linux/skbuff.h:815 [inline]
 [<ffffffff8344ba45>] pfkey_sendmsg+0x135/0x760 net/key/af_key.c:3665
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82ded641>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82def693>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82eda56a>] C_SYSC_sendmsg net/compat.c:720 [inline]
 [<ffffffff82eda56a>] compat_SyS_sendmsg+0x2a/0x40 net/compat.c:718
 [<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

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8801c5286500
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 64 bytes inside of
 512-byte region [ffff8801c5286500, ffff8801c5286700)
The buggy address belongs to the page:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000062
IP: [<ffffffff838a906b>] str__compaction__trace_system_name+0x56b/0xfa0
PGD 80000000afaaf067 PUD afa15067 PMD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.120-gd63fdf6 #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffffffff84217840 task.stack: ffffffff84200000
RIP: 0010:[<ffffffff838a906b>]  [<ffffffff838a906b>] str__compaction__trace_system_name+0x56b/0xfa0
RSP: 0018:ffff8801db207d18  EFLAGS: 00010206
RAX: ffffffff838a9060 RBX: ffff8801db207d68 RCX: ffffffff812a0eeb
RDX: 0000000000000100 RSI: ffffffff842bdb60 RDI: ffffffff812a0efb
RBP: ffff8801db207df0 R08: 0000000000000001 R09: ffffffff850e4930
R10: 0000000000000000 R11: 1ffff1003b640f70 R12: 1ffff1003b640fa9
R13: ffff8801c51d85e8 R14: 0000000000000101 R15: ffff8801db207df0
FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000062 CR3: 00000000b2324000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff838a9060 ffffffff812a0e4c 0000000000000000 ffffffff842c35a0
 0000000000000000 ffffffff838a9060 0000000041b58ab3 ffffffff83faab59
 ffffffff812a0d70 ffffffff84218110 ffff8801db207d68 ffffffff851bf390
Call Trace:
 <IRQ> 
 [<ffffffff812a2e54>] __run_timers kernel/time/timer.c:1261 [inline]
 [<ffffffff812a2e54>] run_timer_softirq+0x604/0xbb0 kernel/time/timer.c:1444
 [<ffffffff83776e57>] __do_softirq+0x227/0xa38 kernel/softirq.c:273
 [<ffffffff8113daa9>] invoke_softirq kernel/softirq.c:350 [inline]
 [<ffffffff8113daa9>] irq_exit+0x119/0x140 kernel/softirq.c:391
 [<ffffffff837765bb>] exiting_irq arch/x86/include/asm/apic.h:653 [inline]
 [<ffffffff837765bb>] smp_apic_timer_interrupt+0x7b/0xa0 arch/x86/kernel/apic/apic.c:926
 [<ffffffff83775510>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:737
 <EOI> 
 [<ffffffff81027e85>] arch_safe_halt arch/x86/include/asm/paravirt.h:117 [inline]
 [<ffffffff81027e85>] default_idle+0x55/0x3c0 arch/x86/kernel/process.c:290
 [<ffffffff810293fa>] arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:281
 [<ffffffff81221468>] default_idle_call+0x48/0x70 kernel/sched/idle.c:93
 [<ffffffff81221b6d>] cpuidle_idle_call kernel/sched/idle.c:157 [inline]
 [<ffffffff81221b6d>] cpu_idle_loop kernel/sched/idle.c:253 [inline]
 [<ffffffff81221b6d>] cpu_startup_entry+0x5fd/0x8f0 kernel/sched/idle.c:301
 [<ffffffff837608b9>] rest_init+0x189/0x190 init/main.c:410
 [<ffffffff84822811>] start_kernel+0x6b9/0x6ee init/main.c:682
 [<ffffffff84821312>] x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:196
 [<ffffffff84821454>] x86_64_start_kernel+0x140/0x163 arch/x86/kernel/head64.c:185
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 56 4d 5f 42 55 47 5f 4f 4e 5f 50 <41> 47 45 28 50 61 67 65 53 6c 61 62 28 70 61 67 65 29 29 00 00 
RIP  [<ffffffff838a906b>] str__compaction__trace_system_name+0x56b/0xfa0
 RSP <ffff8801db207d18>
CR2: 0000000000000062
---[ end trace c7394356da621878 ]---