binder: 24840 RLIMIT_NICE not set
device gre0 entered promiscuous mode
binder: 24836:24858 BC_DEAD_BINDER_DONE 0000000000000005 not found
==================================================================
BUG: KASAN: slab-out-of-bounds in cap_convert_nscap+0x501/0x610 security/commoncap.c:498
Read of size 4 at addr ffff8801d8a3dc40 by task syz-executor1/24862

CPU: 1 PID: 24862 Comm: syz-executor1 Not tainted 4.15.0-rc4-next-20171221+ #78
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 print_address_description+0x73/0x250 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report+0x25b/0x340 mm/kasan/report.c:409
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:429
 cap_convert_nscap+0x501/0x610 security/commoncap.c:498
 setxattr+0x365/0x400 fs/xattr.c:446
 SYSC_fsetxattr fs/xattr.c:508 [inline]
 SyS_fsetxattr+0x130/0x190 fs/xattr.c:497
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452ac9
RSP: 002b:00007fa8a42cac58 EFLAGS: 00000212 ORIG_RAX: 00000000000000be
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000020334000 RSI: 0000000020ffcfec RDI: 0000000000000013
RBP: 00000000000003a3 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000212 R12: 00000000006f37e8
R13: 00000000ffffffff R14: 00007fa8a42cb6d4 R15: 0000000000000000

Allocated by task 24862:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
 __do_kmalloc_node mm/slab.c:3673 [inline]
 __kmalloc_node+0x47/0x70 mm/slab.c:3680
 kmalloc_node include/linux/slab.h:558 [inline]
 kvmalloc_node+0x99/0xd0 mm/util.c:397
 kvmalloc include/linux/mm.h:541 [inline]
 setxattr+0x152/0x400 fs/xattr.c:435
 SYSC_fsetxattr fs/xattr.c:508 [inline]
 SyS_fsetxattr+0x130/0x190 fs/xattr.c:497
 entry_SYSCALL_64_fastpath+0x1f/0x96

Freed by task 3124:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3489 [inline]
 kfree+0xd6/0x260 mm/slab.c:3804
 sel_write_context+0x1bd/0x340 security/selinux/selinuxfs.c:574
 selinux_transaction_write+0xd1/0x130 security/selinux/selinuxfs.c:735
 __vfs_write+0xef/0x970 fs/read_write.c:480
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:581
 entry_SYSCALL_64_fastpath+0x1f/0x96

The buggy address belongs to the object at ffff8801d8a3dc40
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes inside of
 32-byte region [ffff8801d8a3dc40, ffff8801d8a3dc60)
The buggy address belongs to the page:
page:00000000eb622838 count:1 mapcount:0 mapping:00000000d5c0a8a4 index:0xffff8801d8a3dfc1
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801d8a3d000 ffff8801d8a3dfc1 000000010000003f
raw: ffffea00075e82a0 ffff8801dac01248 ffff8801dac001c0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801d8a3db00: fb fb fb fb fc fc fc fc 00 00 fc fc fc fc fc fc
 ffff8801d8a3db80: 00 fc fc fc fc fc fc fc 00 fc fc fc fc fc fc fc
>ffff8801d8a3dc00: fb fb fb fb fc fc fc fc 01 fc fc fc fc fc fc fc
                                           ^
 ffff8801d8a3dc80: 00 00 00 fc fc fc fc fc 00 00 03 fc fc fc fc fc
 ffff8801d8a3dd00: 00 00 03 fc fc fc fc fc fb fb fb fb fc fc fc fc
==================================================================