From 0ab03c2b1478f2438d2c80204f7fef65b1bca9cf Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Fri, 7 Jan 2011 03:15:05 +0000 Subject: netlink: test for all flags of the NLM_F_DUMP composite Due to NLM_F_DUMP is composed of two bits, NLM_F_ROOT | NLM_F_MATCH, when doing "if (x & NLM_F_DUMP)", it tests for _either_ of the bits being set. Because NLM_F_MATCH's value overlaps with NLM_F_EXCL, non-dump requests with NLM_F_EXCL set are mistaken as dump requests. Substitute the condition to test for _all_ bits being set. Signed-off-by: Jan Engelhardt Acked-by: Pablo Neira Ayuso Signed-off-by: David S. Miller --- net/xfrm/xfrm_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/xfrm') diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 8eb889510916..6a8da81ff66f 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -2187,7 +2187,7 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) if ((type == (XFRM_MSG_GETSA - XFRM_MSG_BASE) || type == (XFRM_MSG_GETPOLICY - XFRM_MSG_BASE)) && - (nlh->nlmsg_flags & NLM_F_DUMP)) { + (nlh->nlmsg_flags & NLM_F_DUMP) == NLM_F_DUMP) { if (link->dump == NULL) return -EINVAL; -- cgit v1.2.3