From 9054466e0e7a1720cd2dd00454ce145998a0e784 Mon Sep 17 00:00:00 2001
From: Mathieu Faverge <mathieu.faverge@inria.fr>
Date: Wed, 29 Mar 2023 20:36:37 +0200
Subject: [PATCH] starpu/tags: make sure we don't dereference NULL pointer
---
runtime/starpu/control/runtime_tags.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/runtime/starpu/control/runtime_tags.c b/runtime/starpu/control/runtime_tags.c
index 32c481a0d..3030d12c5 100644
--- a/runtime/starpu/control/runtime_tags.c
+++ b/runtime/starpu/control/runtime_tags.c
@@ -165,6 +165,14 @@ chameleon_starpu_tag_release( int64_t min )
cst_range_t *current = cst_first;
assert( cst_first != NULL ); /* At least one range must be registered */
+ if ( current == NULL ) {
+#if defined(CHAMELEON_DEBUG_STARPU)
+ fprintf( stderr, "chameleon_starpu_tag: FAILED to release [%ld,...]\n",
+ min );
+#endif
+
+ return;
+ }
while ( (current != NULL) && (current->min < min) ) {
prev = current;
--
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