[PATCH 4/7] ws2_32: Return WSAENOBUFS from setsockopt() for IPPROTO_IP with negative optlen.
Paul Gofman
pgofman at codeweavers.com
Sat Mar 5 13:04:06 CST 2022
Signed-off-by: Paul Gofman <pgofman at codeweavers.com>
---
dlls/ws2_32/socket.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index efc0a5b488a..40d86becef9 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -2946,6 +2946,12 @@ int WINAPI setsockopt( SOCKET s, int level, int optname, const char *optval, int
break;
case IPPROTO_IP:
+ if (optlen < 0)
+ {
+ SetLastError(WSAENOBUFS);
+ return SOCKET_ERROR;
+ }
+
switch(optname)
{
case IP_ADD_MEMBERSHIP:
--
2.35.1
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