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authorHarald Welte <laforge@gnumonks.org>2003-11-14 19:17:45 +0000
committerHarald Welte <laforge@gnumonks.org>2003-11-14 19:17:45 +0000
commite5105970e87c0c877a6c54c775f83d30f8d7b57c (patch)
tree0e03c2806f8e51bc96e1015d13600ff981d417c4 /libipq
parent4fe389f87d5b8be160a6706823d5aa71deb78835 (diff)
check if received netlink messages are really from the kernel (pid==0)
Diffstat (limited to 'libipq')
-rw-r--r--libipq/libipq.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libipq/libipq.c b/libipq/libipq.c
index 709c8a21..a25ad4ce 100644
--- a/libipq/libipq.c
+++ b/libipq/libipq.c
@@ -171,6 +171,10 @@ static ssize_t ipq_netlink_recvfrom(const struct ipq_handle *h,
ipq_errno = IPQ_ERR_RECV;
return -1;
}
+ if (h->peer.nl_pid != 0) {
+ ipq_errno = IPQ_ERR_RECV;
+ return -1;
+ }
if (status == 0) {
ipq_errno = IPQ_ERR_NLEOF;
return -1;