The branch main has been updated by tuexen:
URL:
https://cgit.FreeBSD.org/src/commit/?id=112899c6afc5d174445b6ab4738b8eb4de19d835
commit 112899c6afc5d174445b6ab4738b8eb4de19d835
Author: Michael Tuexen <tue...@freebsd.org>
AuthorDate: 2021-08-07 13:12:09 +0000
Commit: Michael Tuexen <tue...@freebsd.org>
CommitDate: 2021-08-07 13:12:09 +0000
sctp: improve input validation of mapped addresses in sctp_connectx()
MFC after: 3 days
---
sys/netinet/sctputil.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/sys/netinet/sctputil.c b/sys/netinet/sctputil.c
index ad4409f666df..f331fb70ded5 100644
--- a/sys/netinet/sctputil.c
+++ b/sys/netinet/sctputil.c
@@ -6716,15 +6716,15 @@ sctp_connectx_helper_find(struct sctp_inpcb *inp,
struct sockaddr *addr,
{
struct sockaddr_in6 *sin6;
+ incr = (unsigned int)sizeof(struct
sockaddr_in6);
+ if (sa->sa_len != incr) {
+ return (EINVAL);
+ }
sin6 = (struct sockaddr_in6 *)sa;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
/* Must be non-mapped for connectx */
return (EINVAL);
}
- incr = (unsigned int)sizeof(struct
sockaddr_in6);
- if (sa->sa_len != incr) {
- return (EINVAL);
- }
(*num_v6) += 1;
break;
}
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