diff options
| author | Thorsten Blum <thorsten.blum@linux.dev> | 2025-10-30 17:32:17 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-11-06 14:31:08 +0800 |
| commit | b6410c1e50164da0542b671fc14caf4cff1c4819 (patch) | |
| tree | b65e160262e7513c2a7c2a7a6324558a40e7d455 /crypto | |
| parent | 9fc6290117259a8dbf8247cb54559df62fd1550f (diff) | |
crypto: deflate - Use struct_size to improve deflate_alloc_stream
Use struct_size(), which provides additional compile-time checks for
structures with flexible array members (e.g., __must_be_array()), to
calculate the allocation size for a new 'deflate_stream'.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/deflate.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/deflate.c b/crypto/deflate.c index 21404515dc77..a3e1fff55661 100644 --- a/crypto/deflate.c +++ b/crypto/deflate.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/overflow.h> #include <linux/percpu.h> #include <linux/scatterlist.h> #include <linux/slab.h> @@ -39,7 +40,7 @@ static void *deflate_alloc_stream(void) DEFLATE_DEF_MEMLEVEL)); struct deflate_stream *ctx; - ctx = kvmalloc(sizeof(*ctx) + size, GFP_KERNEL); + ctx = kvmalloc(struct_size(ctx, workspace, size), GFP_KERNEL); if (!ctx) return ERR_PTR(-ENOMEM); |