---

yaml --- r: 373741 b: refs/heads/master c: 6286ae9 h: refs/heads/master i: 373739: 2e8b521 v: v3
git-mirror · May 6, 2013 · 28a6361 · 28a6361
1 parent d543e05
commit 28a6361
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Showing 3 changed files with 10 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 14e50c6a9bc2b283bb4021026226268312ceefdd
+refs/heads/master: 6286ae97d10ea2b5cd90532163797ab217bfdbdf
diff --git a/trunk/include/linux/slab_def.h b/trunk/include/linux/slab_def.h
@@ -126,6 +126,9 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
 		if (!size)
 			return ZERO_SIZE_PTR;
 
+		if (WARN_ON_ONCE(size > KMALLOC_MAX_SIZE))
+			return NULL;
+
 		i = kmalloc_index(size);
 
 #ifdef CONFIG_ZONE_DMA
@@ -172,6 +175,9 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 		if (!size)
 			return ZERO_SIZE_PTR;
 
+		if (WARN_ON_ONCE(size > KMALLOC_MAX_SIZE))
+			return NULL;
+
 		i = kmalloc_index(size);
 
 #ifdef CONFIG_ZONE_DMA

diff --git a/trunk/mm/slab_common.c b/trunk/mm/slab_common.c
@@ -373,6 +373,9 @@ struct kmem_cache *kmalloc_slab(size_t size, gfp_t flags)
 {
 	int index;
 
+	if (WARN_ON_ONCE(size > KMALLOC_MAX_SIZE))
+		return NULL;
+
 	if (size <= 192) {
 		if (!size)
 			return ZERO_SIZE_PTR;