random: sshd: uninitialized urandom read (32 bytes read, 119 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:2120
Read of size 8 at addr ffff8801d310c140 by task syzkaller817555/3313

CPU: 1 PID: 3313 Comm: syzkaller817555 Not tainted 4.4.113-gef588ef #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 78d70ff645df97e0 ffff8801d133fab0 ffffffff81d0278d
 ffffea00074c4300 ffff8801d310c140 0000000000000000 ffff8801d310c140
 ffff8801d0998238 ffff8801d133fae8 ffffffff814fd053 ffff8801d310c140
Call Trace:
 [<ffffffff81d0278d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0278d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814fd053>] print_address_description+0x73/0x260 mm/kasan/report.c:252
 [<ffffffff814fd565>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff814fd565>] kasan_report+0x285/0x370 mm/kasan/report.c:408
 [<ffffffff814fd6c4>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429
 [<ffffffff825b6d79>] list_empty include/linux/list.h:189 [inline]
 [<ffffffff825b6d79>] sg_remove_request+0xf9/0x110 drivers/scsi/sg.c:2120
 [<ffffffff825b72f5>] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1837
 [<ffffffff825b919b>] sg_read+0xa1b/0x1490 drivers/scsi/sg.c:537
 [<ffffffff8151bc93>] __vfs_read+0x103/0x440 fs/read_write.c:432
 [<ffffffff8151db33>] vfs_read+0x123/0x3a0 fs/read_write.c:454
 [<ffffffff81520479>] SYSC_read fs/read_write.c:569 [inline]
 [<ffffffff81520479>] SyS_read+0xd9/0x1b0 fs/read_write.c:562
 [<ffffffff83771b5f>] entry_SYSCALL_64_fastpath+0x1c/0x98

Allocated by task 0:
(stack is not available)

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8801d310c100
 which belongs to the cache fasync_cache of size 96
The buggy address is located 64 bytes inside of
 96-byte region [ffff8801d310c100, ffff8801d310c160)
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 4.4.113-gef588ef #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffffffff84217840 task.stack: ffffffff84200000
RIP: 0010:[<ffffffff81d138cf>]  [<ffffffff81d138cf>] __rb_insert lib/rbtree.c:120 [inline]
RIP: 0010:[<ffffffff81d138cf>]  [<ffffffff81d138cf>] rb_insert_color+0x9f/0xcb0 lib/rbtree.c:420
RSP: 0018:ffff8801db207d18  EFLAGS: 00010003
RAX: 0a0508a8e82a0be9 RBX: ffffffff838a8de0 RCX: ffffffff838a8de0
RDX: 1ffffffff07151bd RSI: ffff8801db219710 RDI: ffff8801db219c40
RBP: ffff8801db207d60 R08: ffffffff8580af08 R09: 0000000000000001
R10: 0000000000000000 R11: 1ffff1003b640f62 R12: ffff8801d130fdf8
R13: 5028454741505f4e R14: ffff8801db219c40 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e456b1c110 CR3: 00000000b61d2000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff842bdb20 ffffffff842180b0 0000000000000000 ffff8801db207d70
 ffff8801db219c40 dffffc0000000000 0000000000000000 ffff8801db219710
 ffff8801d130fe00 ffff8801db207db0 ffffffff81d20067 ffff8801db219c58
Call Trace:
 <IRQ> 
 [<ffffffff81d20067>] timerqueue_add+0x157/0x2a0 lib/timerqueue.c:57
 [<ffffffff812aabb8>] enqueue_hrtimer+0x168/0x450 kernel/time/hrtimer.c:890
 [<ffffffff812acc42>] __run_hrtimer kernel/time/hrtimer.c:1268 [inline]
 [<ffffffff812acc42>] __hrtimer_run_queues+0x732/0xfe0 kernel/time/hrtimer.c:1317
 [<ffffffff812aece6>] hrtimer_interrupt+0x1a6/0x440 kernel/time/hrtimer.c:1351
 [<ffffffff810b0c7a>] local_apic_timer_interrupt+0x6a/0xb0 arch/x86/kernel/apic/apic.c:901
 [<ffffffff837747b6>] smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:925
 [<ffffffff83773710>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:737
 <EOI> 
 [<ffffffff81027ed5>] arch_safe_halt arch/x86/include/asm/paravirt.h:117 [inline]
 [<ffffffff81027ed5>] default_idle+0x55/0x3c0 arch/x86/kernel/process.c:291
 [<ffffffff8102945a>] arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:282
 [<ffffffff81220418>] default_idle_call+0x48/0x70 kernel/sched/idle.c:93
 [<ffffffff81220b1d>] cpuidle_idle_call kernel/sched/idle.c:157 [inline]
 [<ffffffff81220b1d>] cpu_idle_loop kernel/sched/idle.c:253 [inline]
 [<ffffffff81220b1d>] cpu_startup_entry+0x5fd/0x8f0 kernel/sched/idle.c:301
 [<ffffffff8375ead9>] rest_init+0x189/0x190 init/main.c:410
 [<ffffffff84821811>] start_kernel+0x6b9/0x6ee init/main.c:682
 [<ffffffff84820312>] x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:196
 [<ffffffff84820454>] x86_64_start_kernel+0x140/0x163 arch/x86/kernel/head64.c:185
Code: 48 89 c2 48 c1 ea 03 42 80 3c 3a 00 0f 85 94 09 00 00 4c 8b 6b 08 4d 39 e5 0f 84 b0 01 00 00 4d 85 ed 74 1d 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 95 09 00 00 41 f6 45 00 01 0f 84 20 03 00 
RIP  [<ffffffff81d138cf>] __rb_insert lib/rbtree.c:120 [inline]
RIP  [<ffffffff81d138cf>] rb_insert_color+0x9f/0xcb0 lib/rbtree.c:420
 RSP <ffff8801db207d18>
---[ end trace fd5fcaf65e15aa2e ]---