diff options
author | Harald Welte <laforge@gnumonks.org> | 2003-11-14 19:17:45 +0000 |
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committer | Harald Welte <laforge@gnumonks.org> | 2003-11-14 19:17:45 +0000 |
commit | e5105970e87c0c877a6c54c775f83d30f8d7b57c (patch) | |
tree | 0e03c2806f8e51bc96e1015d13600ff981d417c4 /libipq | |
parent | 4fe389f87d5b8be160a6706823d5aa71deb78835 (diff) |
check if received netlink messages are really from the kernel (pid==0)
Diffstat (limited to 'libipq')
-rw-r--r-- | libipq/libipq.c | 4 |
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; |