SELinux: unrecognized netlink message: protocol=9 nlmsg_type=50176 sclass=netlink_audit_socket pig=11472 comm=syz-executor6
==================================================================
BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline]
BUG: KASAN: use-after-free in list_empty include/linux/list.h:189 [inline]
BUG: KASAN: use-after-free in sg_remove_request+0x103/0x120 drivers/scsi/sg.c:2110
Read of size 8 at addr ffff8801bd8ee140 by task syz-executor2/11473

CPU: 0 PID: 11473 Comm: syz-executor2 Not tainted 4.9.88-g71df7bb #60
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801cb9ef940 ffffffff81d95f19 ffffea0006f63b80 ffff8801bd8ee140
 0000000000000000 ffff8801bd8ee140 ffff8801cbc2c438 ffff8801cb9ef978
 ffffffff8153e793 ffff8801bd8ee140 0000000000000008 0000000000000000
Call Trace:
 [<ffffffff81d95f19>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d95f19>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8153e793>] print_address_description+0x73/0x280 mm/kasan/report.c:256
 [<ffffffff8153ec95>] kasan_report_error mm/kasan/report.c:355 [inline]
 [<ffffffff8153ec95>] kasan_report+0x255/0x380 mm/kasan/report.c:412
 [<ffffffff8153ee34>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
 [<ffffffff82669953>] __read_once_size include/linux/compiler.h:243 [inline]
 [<ffffffff82669953>] list_empty include/linux/list.h:189 [inline]
 [<ffffffff82669953>] sg_remove_request+0x103/0x120 drivers/scsi/sg.c:2110
 [<ffffffff82669ed5>] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1827
 [<ffffffff8266bd86>] sg_read+0xa16/0x1440 drivers/scsi/sg.c:526
 [<ffffffff8156d338>] do_loop_readv_writev.part.17+0xc8/0x2b0 fs/read_write.c:715
 [<ffffffff8157147d>] do_loop_readv_writev fs/read_write.c:879 [inline]
 [<ffffffff8157147d>] do_readv_writev+0x5fd/0x740 fs/read_write.c:873
 [<ffffffff81571644>] vfs_readv+0x84/0xc0 fs/read_write.c:897
 [<ffffffff81571766>] do_readv+0xe6/0x250 fs/read_write.c:923
 [<ffffffff81574c37>] SYSC_readv fs/read_write.c:1010 [inline]
 [<ffffffff81574c37>] SyS_readv+0x27/0x30 fs/read_write.c:1007
 [<ffffffff81006504>] do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b7a53>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Allocated by task 9209:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack+0x43/0xd0 mm/kasan/kasan.c:505
 set_track mm/kasan/kasan.c:517 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:609
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:547
 slab_post_alloc_hook mm/slab.h:417 [inline]
 slab_alloc_node mm/slub.c:2715 [inline]
 slab_alloc mm/slub.c:2723 [inline]
 kmem_cache_alloc+0xba/0x290 mm/slub.c:2728
 fasync_alloc fs/fcntl.c:608 [inline]
 fasync_add_entry fs/fcntl.c:666 [inline]
 fasync_helper+0x37/0xb0 fs/fcntl.c:695
 sock_fasync+0xd1/0x1e0 net/socket.c:1072
 ioctl_fioasync fs/ioctl.c:534 [inline]
 do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639
 SYSC_ioctl fs/ioctl.c:694 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282
 entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Freed by task 3:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack+0x43/0xd0 mm/kasan/kasan.c:505
 set_track mm/kasan/kasan.c:517 [inline]
 kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:582
 slab_free_hook mm/slub.c:1355 [inline]
 slab_free_freelist_hook mm/slub.c:1377 [inline]
 slab_free mm/slub.c:2958 [inline]
 kmem_cache_free+0xc7/0x300 mm/slub.c:2980
 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:567
 __rcu_reclaim kernel/rcu/rcu.h:118 [inline]
 rcu_do_batch kernel/rcu/tree.c:2789 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline]
 __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline]
 rcu_process_callbacks+0x898/0x1300 kernel/rcu/tree.c:3037
 __do_softirq+0x206/0x951 kernel/softirq.c:284

The buggy address belongs to the object at ffff8801bd8ee100
 which belongs to the cache fasync_cache of size 96
The buggy address is located 64 bytes inside of
 96-byte region [ffff8801bd8ee100, ffff8801bd8ee160)
The buggy address belongs to the page:
page:ffffea0006f63b80 count:1 mapcount:0 mapping:          (null) index:0xffff8801bd8ee700
flags: 0x8000000000000080(slab)
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801bd8ee000: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff8801bd8ee080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff8801bd8ee100: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                                           ^
 ffff8801bd8ee180: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff8801bd8ee200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================