BUG: memory leak
unreferenced object 0xffff888109388000 (size 8192):
comm "syz.1.1731", pid 7731, jiffies 4297678706
hex dump (first 32 bytes):
63 6d 61 63 28 61 65 73 29 00 00 00 00 00 00 00 cmac(aes).......
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc d0a79bf7):
create_object mm/kmemleak.c:794 [inline]
kmemleak_alloc+0x39/0x70 mm/kmemleak.c:1098
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4983 [inline]
slab_alloc_node mm/slub.c:5288 [inline]
__do_kmalloc_node mm/slub.c:5649 [inline]
__kmalloc_node_track_caller_noprof+0x5c9/0xd90 mm/slub.c:5759
kmemdup_noprof+0x3b/0xd0 mm/util.c:138
kmemdup_noprof include/linux/fortify-string.h:765 [inline]
attach_auth_trunc+0x190/0x510 net/xfrm/xfrm_user.c:683
xfrm_state_construct net/xfrm/xfrm_user.c:916 [inline]
xfrm_add_sa+0xb2e/0x2760 net/xfrm/xfrm_user.c:1022
xfrm_user_rcv_msg+0x46d/0xe30 net/xfrm/xfrm_user.c:3507
netlink_rcv_skb+0x17f/0x510 net/netlink/af_netlink.c:2552
xfrm_netlink_rcv+0x8c/0xc0 net/xfrm/xfrm_user.c:3529
netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
netlink_unicast+0x776/0xcb0 net/netlink/af_netlink.c:1346
netlink_sendmsg+0xacf/0x1140 net/netlink/af_netlink.c:1896
sock_sendmsg_nosec+0x1fe/0x250 net/socket.c:727
__sock_sendmsg+0x89/0xb0 net/socket.c:742
____sys_sendmsg+0x6fd/0x9e0 net/socket.c:2630
___sys_sendmsg+0x140/0x200 net/socket.c:2684
__sys_sendmsg+0x180/0x2c0 net/socket.c:2716
__do_sys_sendmsg net/socket.c:2721 [inline]
__se_sys_sendmsg net/socket.c:2719 [inline]
__x64_sys_sendmsg+0x7f/0xc0 net/socket.c:2719
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