detect: forbids unsupported prefilters

(cherry picked from commit b7fd01c86e0d0f3c341031d62ec89e305859aa0b)

diff --git a/src/detect-prefilter.c b/src/detect-prefilter.c
index b311b19153d76b3414a99334b2f1880fc2b09ec8..edc0da97289ab3cfc3be15cf830fd94de5d7b24d 100644 (file)
--- a/src/detect-prefilter.c
+++ b/src/detect-prefilter.c
@@ -75,6 +75,11 @@ static int DetectPrefilterSetup (DetectEngineCtx *de_ctx, Signature *s, const ch
         SCLogError(SC_ERR_INVALID_SIGNATURE, "prefilter needs preceding match");
         SCReturnInt(-1);
     }
+    if (sigmatch_table[sm->type].SupportsPrefilter == NULL) {
+        SCLogError(SC_ERR_INVALID_SIGNATURE, "prefilter is not supported for %s",
+                sigmatch_table[sm->type].name);
+        SCReturnInt(-1);
+    }
 
     s->init_data->prefilter_sm = sm;