device eql entered promiscuous mode
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BUG: KASAN: slab-out-of-bounds in cap_inode_getsecurity+0x621/0x7d0 security/commoncap.c:408
Read of size 4 at addr ffff8801d5d1c4c0 by task syz-executor6/10792

CPU: 0 PID: 10792 Comm: syz-executor6 Not tainted 4.15.0-rc6+ #245
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_inode_getsecurity+0x621/0x7d0 security/commoncap.c:408
 security_inode_getsecurity+0xcd/0x110 security/security.c:809
 xattr_getsecurity+0xd3/0x1f0 fs/xattr.c:244
 vfs_getxattr+0xc8/0x110 fs/xattr.c:333
 getxattr+0x116/0x2a0 fs/xattr.c:540
 path_getxattr+0xed/0x170 fs/xattr.c:568
 SYSC_getxattr fs/xattr.c:580 [inline]
 SyS_getxattr+0x33/0x40 fs/xattr.c:577
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007fb179f52c58 EFLAGS: 00000212 ORIG_RAX: 00000000000000bf
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000020227f74 RSI: 0000000020b29f57 RDI: 000000002072d000
RBP: 0000000000000059 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000008c R11: 0000000000000212 R12: 00000000006ee8f8
R13: 00000000ffffffff R14: 00007fb179f536d4 R15: 0000000000000000

Allocated by task 10792:
 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 mm/slab.c:3708 [inline]
 __kmalloc_track_caller+0x15e/0x760 mm/slab.c:3723
 __do_krealloc mm/slab_common.c:1407 [inline]
 krealloc+0x65/0xc0 mm/slab_common.c:1454
 vfs_getxattr_alloc+0x177/0x270 fs/xattr.c:290
 cap_inode_getsecurity+0xfa/0x7d0 security/commoncap.c:399
 security_inode_getsecurity+0xcd/0x110 security/security.c:809
 xattr_getsecurity+0xd3/0x1f0 fs/xattr.c:244
 vfs_getxattr+0xc8/0x110 fs/xattr.c:333
 getxattr+0x116/0x2a0 fs/xattr.c:540
 path_getxattr+0xed/0x170 fs/xattr.c:568
 SYSC_getxattr fs/xattr.c:580 [inline]
 SyS_getxattr+0x33/0x40 fs/xattr.c:577
 entry_SYSCALL_64_fastpath+0x23/0x9a

Freed by task 7740:
 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:3488 [inline]
 kfree+0xd6/0x260 mm/slab.c:3803
 dccp_feat_val_destructor+0xd2/0xf0 net/dccp/feat.c:388
 dccp_feat_entry_destructor.part.5+0x40/0x60 net/dccp/feat.c:417
 dccp_feat_entry_destructor net/dccp/feat.c:416 [inline]
 dccp_feat_list_purge+0xc2/0x1e0 net/dccp/feat.c:549
 dccp_destroy_sock+0x2f4/0x3f0 net/dccp/proto.c:236
 dccp_v6_destroy_sock+0x15/0x20 net/dccp/ipv6.c:1017
 inet_csk_destroy_sock+0x166/0x3f0 net/ipv4/inet_connection_sock.c:832
 dccp_close+0x853/0xc20 net/dccp/proto.c:1079
 inet_release+0xed/0x1c0 net/ipv4/af_inet.c:426
 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:432
 sock_release+0x8d/0x1e0 net/socket.c:600
 SYSC_socketpair net/socket.c:1401 [inline]
 SyS_socketpair+0x481/0x6f0 net/socket.c:1346
 entry_SYSCALL_64_fastpath+0x23/0x9a

The buggy address belongs to the object at ffff8801d5d1c4c0
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes inside of
 32-byte region [ffff8801d5d1c4c0, ffff8801d5d1c4e0)
The buggy address belongs to the page:
page:00000000621dd969 count:1 mapcount:0 mapping:000000003124b32b index:0xffff8801d5d1cfc1
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801d5d1c000 ffff8801d5d1cfc1 000000010000003b
raw: ffffea0007254720 ffffea0007578460 ffff8801dac001c0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801d5d1c380: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8801d5d1c400: 00 00 01 fc fc fc fc fc fb fb fb fb fc fc fc fc
>ffff8801d5d1c480: fb fb fb fb fc fc fc fc 01 fc fc fc fc fc fc fc
                                           ^
 ffff8801d5d1c500: 00 00 01 fc fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8801d5d1c580: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
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