==================================================================
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 ffff8800ba9ed140 by task syzkaller352541/4008

CPU: 0 PID: 4008 Comm: syzkaller352541 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 e8ab9bf643e49f83 ffff8801c8d779f0 ffffffff81d0394d
 ffffea0002ea7b40 ffff8800ba9ed140 0000000000000000 ffff8800ba9ed140
 ffff8800ba0e4438 ffff8801c8d77a28 ffffffff814fe1d3 ffff8800ba9ed140
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814fe1d3>] print_address_description+0x73/0x260 mm/kasan/report.c:252
 [<ffffffff814fe6e5>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff814fe6e5>] kasan_report+0x285/0x370 mm/kasan/report.c:408
 [<ffffffff814fe844>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429
 [<ffffffff825b8089>] list_empty include/linux/list.h:189 [inline]
 [<ffffffff825b8089>] sg_remove_request+0xf9/0x110 drivers/scsi/sg.c:2120
 [<ffffffff825b8605>] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1837
 [<ffffffff825ba4ab>] sg_read+0xa1b/0x1490 drivers/scsi/sg.c:537
 [<ffffffff8151d6e1>] do_loop_readv_writev+0x141/0x1e0 fs/read_write.c:680
 [<ffffffff8151fa3d>] do_readv_writev+0x5dd/0x6e0 fs/read_write.c:810
 [<ffffffff8151fbb8>] vfs_readv+0x78/0xb0 fs/read_write.c:834
 [<ffffffff81521ee9>] SYSC_readv fs/read_write.c:860 [inline]
 [<ffffffff81521ee9>] SyS_readv+0xd9/0x240 fs/read_write.c:852
 [<ffffffff83773edf>] 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 ffff8800ba9ed100
 which belongs to the cache fasync_cache of size 96
The buggy address is located 64 bytes inside of
 96-byte region [ffff8800ba9ed100, ffff8800ba9ed160)
The buggy address belongs to the page:
PANIC: double fault, error_code: 0x0
CPU: 0 PID: 4008 Comm: syzkaller352541 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800bb2fc800 task.stack: ffff8801c8d70000
RIP: 0010:[<ffffffff814908c8>]  [<ffffffff814908c8>] dump_page_badflags+0x8/0x250 mm/debug.c:84
RSP: 0018:ffff880100000000  EFLAGS: 00010046
RAX: ffff8800bb2fc800 RBX: ffffea0002ea7b40 RCX: ffffffff81490a40
RDX: 0000000000000000 RSI: ffffffff838a8e60 RDI: ffffea0002ea7b40
RBP: ffff880100000010 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000002 R11: fffffbfff0ad7e2e R12: 0000000000000000
R13: ffffffff838a8e60 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fb591c37700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8800fffffff8 CR3: 00000000bac7c000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:

Call Trace:
 <UNK> 
Code: 00 e9 83 fd ff ff e8 88 df 06 00 e9 50 fd ff ff e8 7e df 06 00 e9 1d fd ff ff 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 <41> 55 49 89 f5 41 54 49 89 d4 53 48 89 fb 48 83 ec 08 e8 91 04