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Diffstat (limited to 'crypto/zstd.c')
-rw-r--r--crypto/zstd.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/crypto/zstd.c b/crypto/zstd.c
index ac318d333b68..ace7a82ea45a 100644
--- a/crypto/zstd.c
+++ b/crypto/zstd.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/net.h>
+#include <linux/overflow.h>
#include <linux/vmalloc.h>
#include <linux/zstd.h>
#include <crypto/internal/acompress.h>
@@ -25,7 +26,7 @@ struct zstd_ctx {
zstd_dctx *dctx;
size_t wksp_size;
zstd_parameters params;
- u8 wksp[] __aligned(8);
+ u8 wksp[] __aligned(8) __counted_by(wksp_size);
};
static DEFINE_MUTEX(zstd_stream_lock);
@@ -44,7 +45,7 @@ static void *zstd_alloc_stream(void)
if (!wksp_size)
return ERR_PTR(-EINVAL);
- ctx = kvmalloc(sizeof(*ctx) + wksp_size, GFP_KERNEL);
+ ctx = kvmalloc(struct_size(ctx, wksp, wksp_size), GFP_KERNEL);
if (!ctx)
return ERR_PTR(-ENOMEM);