random: sshd: uninitialized urandom read (32 bytes read, 113 bits of entropy available)
==================================================================
BUG: KASAN: slab-out-of-bounds in list_empty include/linux/list.h:189 [inline]
BUG: KASAN: slab-out-of-bounds in sg_remove_request+0xf9/0x110 drivers/scsi/sg.c:2130
Read of size 8 at addr ffff8801d13cd140 by task syzkaller372133/3314

CPU: 0 PID: 3314 Comm: syzkaller372133 Not tainted 4.4.111-g3301b55 #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 1d91482e275aa639 ffff8801d067fa40 ffffffff81d0509d
 ffffea000744f340 ffff8801d13cd140 0000000000000000 ffff8801d13cd140
 ffff8801d1374438 ffff8801d067fa78 ffffffff814fd433 ffff8801d13cd140
Call Trace:
 [<ffffffff81d0509d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0509d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814fd433>] print_address_description+0x73/0x260 mm/kasan/report.c:252
 [<ffffffff814fd945>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff814fd945>] kasan_report+0x285/0x370 mm/kasan/report.c:408
 [<ffffffff814fdaa4>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429
 [<ffffffff825b9d09>] list_empty include/linux/list.h:189 [inline]
 [<ffffffff825b9d09>] sg_remove_request+0xf9/0x110 drivers/scsi/sg.c:2130
 [<ffffffff825ba285>] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1848
 [<ffffffff825bc0c1>] sg_read+0xa21/0x1490 drivers/scsi/sg.c:538
 [<ffffffff8151c383>] __vfs_read+0x103/0x440 fs/read_write.c:432
 [<ffffffff8151e223>] vfs_read+0x123/0x3a0 fs/read_write.c:454
 [<ffffffff81520b69>] SYSC_read fs/read_write.c:569 [inline]
 [<ffffffff81520b69>] SyS_read+0xd9/0x1b0 fs/read_write.c:562
 [<ffffffff81006d84>] do_syscall_32_irqs_on arch/x86/entry/common.c:390 [inline]
 [<ffffffff81006d84>] do_fast_syscall_32+0x314/0x890 arch/x86/entry/common.c:457
 [<ffffffff8377722a>] 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 ffff8801d13cd100
 which belongs to the cache fasync_cache of size 96
The buggy address is located 64 bytes inside of
 96-byte region [ffff8801d13cd100, ffff8801d13cd160)
The buggy address belongs to the page:
kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle kernel paging request at ffff8801cf04e060
IP: [<ffff8801cf04e060>] 0xffff8801cf04e060
PGD 60e8067 PUD 80000001c00000e3 
Oops: 0011 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.111-g3301b55 #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801da3a97c0 task.stack: ffff8801da3b8000
RIP: 0010:[<ffff8801cf04e060>]  [<ffff8801cf04e060>] 0xffff8801cf04e060
RSP: 0018:ffff8801db307340  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 1ffff1003b660e6d RCX: ffffffff82e973af
RDX: 1ffff920000d8804 RSI: ffffc900006c4028 RDI: ffff8801d066f500
RBP: ffff8801db3073f0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffff1003b660e34 R12: ffff8801d066f500
R13: 0000000000000000 R14: ffffc900006c4000 R15: ffff8801db3073c8
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8801cf04e060 CR3: 00000001d0896000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff82e973d9 ffffffff82e97288 ffff8801da3a97c0 ffffc900006c4002
 0000000100000003 0000000041b58ab3 ffffffff83ffe13e ffffffff82e97190
 ffff88021fffd057 ffff88021fffd05b ffff88021fffd04f ffffed0043fffa0b
Call Trace:
 <IRQ> 
 [<ffffffff82dfc237>] sk_filter include/linux/filter.h:427 [inline]
 [<ffffffff82dfc237>] sock_queue_rcv_skb+0xa7/0xb70 net/core/sock.c:459
 [<ffffffff83431823>] packet_rcv_spkt+0x3b3/0x4c0 net/packet/af_packet.c:1832
 [<ffffffff82e592bb>] dev_queue_xmit_nit net/core/dev.c:1913 [inline]
 [<ffffffff82e592bb>] xmit_one net/core/dev.c:2748 [inline]
 [<ffffffff82e592bb>] dev_hard_start_xmit+0x62b/0x1220 net/core/dev.c:2768
 [<ffffffff82ee1521>] sch_direct_xmit+0x2c1/0x760 net/sched/sch_generic.c:165
 [<ffffffff82e5b528>] __dev_xmit_skb net/core/dev.c:2939 [inline]
 [<ffffffff82e5b528>] __dev_queue_xmit+0x1368/0x1a70 net/core/dev.c:3157
 [<ffffffff82e5bc47>] dev_queue_xmit+0x17/0x20 net/core/dev.c:3223
 [<ffffffff830efd08>] neigh_hh_output include/net/neighbour.h:468 [inline]
 [<ffffffff830efd08>] dst_neigh_output include/net/dst.h:459 [inline]
 [<ffffffff830efd08>] ip_finish_output2+0xbe8/0x1060 net/ipv4/ip_output.c:213
 [<ffffffff830f3324>] ip_finish_output+0x784/0xb00 net/ipv4/ip_output.c:288
 [<ffffffff830f67ff>] NF_HOOK_COND include/linux/netfilter.h:240 [inline]
 [<ffffffff830f67ff>] ip_output+0x1cf/0x4c0 net/ipv4/ip_output.c:362
 [<ffffffff830f3b65>] dst_output include/net/dst.h:498 [inline]
 [<ffffffff830f3b65>] ip_local_out+0x95/0x170 net/ipv4/ip_output.c:119
 [<ffffffff830f4e6b>] ip_queue_xmit+0x87b/0x16c0 net/ipv4/ip_output.c:461
 [<ffffffff83159fb8>] tcp_transmit_skb+0x17a8/0x2ce0 net/ipv4/tcp_output.c:1029
 [<ffffffff8316458f>] __tcp_retransmit_skb+0x47f/0x17b0 net/ipv4/tcp_output.c:2647
 [<ffffffff83165fa3>] tcp_retransmit_skb+0x23/0x2c0 net/ipv4/tcp_output.c:2664
 [<ffffffff8316bae0>] tcp_retransmit_timer+0xa60/0x1f10 net/ipv4/tcp_timer.c:446
 [<ffffffff8316d1ae>] tcp_write_timer_handler+0x21e/0x6d0 net/ipv4/tcp_timer.c:528
 [<ffffffff8316d701>] tcp_write_timer+0xa1/0xd0 net/ipv4/tcp_timer.c:546
 [<ffffffff8129fe6b>] call_timer_fn+0x18b/0x860 kernel/time/timer.c:1178
 [<ffffffff812a1f74>] __run_timers kernel/time/timer.c:1254 [inline]
 [<ffffffff812a1f74>] run_timer_softirq+0x604/0xbb0 kernel/time/timer.c:1437
 [<ffffffff83778dbd>] __do_softirq+0x24d/0xa59 kernel/softirq.c:273
 [<ffffffff8113da09>] invoke_softirq kernel/softirq.c:350 [inline]
 [<ffffffff8113da09>] irq_exit+0x119/0x140 kernel/softirq.c:391
 [<ffffffff837784fb>] exiting_irq arch/x86/include/asm/apic.h:653 [inline]
 [<ffffffff837784fb>] smp_apic_timer_interrupt+0x7b/0xa0 arch/x86/kernel/apic/apic.c:926
 [<ffffffff83777450>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:725
 <EOI> 
 [<ffffffff81027e15>] arch_safe_halt arch/x86/include/asm/paravirt.h:117 [inline]
 [<ffffffff81027e15>] default_idle+0x55/0x3c0 arch/x86/kernel/process.c:291
 [<ffffffff8102938a>] arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:282
 [<ffffffff81220508>] default_idle_call+0x48/0x70 kernel/sched/idle.c:93
 [<ffffffff81220c15>] cpuidle_idle_call kernel/sched/idle.c:157 [inline]
 [<ffffffff81220c15>] cpu_idle_loop kernel/sched/idle.c:253 [inline]
 [<ffffffff81220c15>] cpu_startup_entry+0x605/0x820 kernel/sched/idle.c:301
 [<ffffffff810ad7a4>] start_secondary+0x304/0x3e0 arch/x86/kernel/smpboot.c:242
Code: 00 00 00 40 f3 44 07 00 ea ff ff 00 00 00 00 00 00 00 00 a0 83 8a 83 ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <a0> e0 04 cf 01 88 ff ff 91 f9 48 81 ff ff ff ff 54 00 00 00 0f 
RIP  [<ffff8801cf04e060>] 0xffff8801cf04e060
 RSP <ffff8801db307340>
CR2: ffff8801cf04e060
---[ end trace 99185c85790f3ddc ]---