genetlink: fix possible memory leak in genl_family_rcv_msg()
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Fri, 26 Apr 2013 15:34:16 +0000 (15:34 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sat, 27 Apr 2013 03:25:39 +0000 (23:25 -0400)
commit50754d2188b04a679a249fb57751542643a436e0
treeccffc5647ba1ea8f4d89cabe27a28f3ddfbf77fe
parent78d0b11dcedb21ee432d19eed1a3fa03e8f95353
genetlink: fix possible memory leak in genl_family_rcv_msg()

'attrbuf' is malloced in genl_family_rcv_msg() when family->maxattr &&
family->parallel_ops, thus should be freed before leaving from the error
handling cases, otherwise it will cause memory leak.

Introduced by commit def3117493eafd9dfa1f809d861e0031b2cc8a07
(genl: Allow concurrent genl callbacks.)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/netlink/genetlink.c