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| author | Tomasz Grobelny <tomasz@grobelny.oswiecenia.net> | 2008-09-04 07:30:19 +0200 |
|---|---|---|
| committer | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2008-09-04 07:45:40 +0200 |
| commit | 7d1af6a8d935678248d057564e75e1452409a53c (patch) | |
| tree | 06ea5f0d3e819e99609df3ef741574cdfac4aab9 /net/dccp/proto.c | |
| parent | d6da3511d6b558d0b017777b61dc08b8fbc06ea4 (diff) | |
| download | linux-7d1af6a8d935678248d057564e75e1452409a53c.tar.gz linux-7d1af6a8d935678248d057564e75e1452409a53c.tar.xz | |
dccp qpolicy: Parameter checking of cmsg qpolicy parameters
Ensure that cmsg->cmsg_type value is valid for qpolicy
that is currently in use.
Signed-off-by: Tomasz Grobelny <tomasz@grobelny.oswiecenia.net>
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Diffstat (limited to 'net/dccp/proto.c')
| -rw-r--r-- | net/dccp/proto.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/dccp/proto.c b/net/dccp/proto.c index b56efdd2a421..a3caa11aa836 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -735,6 +735,10 @@ static int dccp_msghdr_parse(struct msghdr *msg, struct sk_buff *skb) if (cmsg->cmsg_level != SOL_DCCP) continue; + if (cmsg->cmsg_type <= DCCP_SCM_QPOLICY_MAX && + !dccp_qpolicy_param_ok(skb->sk, cmsg->cmsg_type)) + return -EINVAL; + switch (cmsg->cmsg_type) { case DCCP_SCM_PRIORITY: if (cmsg->cmsg_len != CMSG_LEN(sizeof(__u32))) |