Revision 2cff98b99c469880ce830cbcde015b53b67e0a7b authored by Dean Nelson on 29 April 2015, 15:09:18 UTC, committed by Will Deacon on 29 April 2015, 16:39:39 UTC
__dma_alloc() does a PAGE_ALIGN() on the passed in size argument before doing anything else. __dma_free() does not. And because it doesn't, it is possible to leak memory should size not be an integer multiple of PAGE_SIZE. The solution is to add a PAGE_ALIGN() to __dma_free() like is done in __dma_alloc(). Additionally, this patch removes a redundant PAGE_ALIGN() from __dma_alloc_coherent(), since __dma_alloc_coherent() can only be called from __dma_alloc(), which already does a PAGE_ALIGN() before the call. Cc: stable@vger.kernel.org Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Dean Nelson <dnelson@redhat.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
1 parent 6829e27
aes.h
/*
* Common values for AES algorithms
*/
#ifndef _CRYPTO_AES_H
#define _CRYPTO_AES_H
#include <linux/types.h>
#include <linux/crypto.h>
#define AES_MIN_KEY_SIZE 16
#define AES_MAX_KEY_SIZE 32
#define AES_KEYSIZE_128 16
#define AES_KEYSIZE_192 24
#define AES_KEYSIZE_256 32
#define AES_BLOCK_SIZE 16
#define AES_MAX_KEYLENGTH (15 * 16)
#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32))
/*
* Please ensure that the first two fields are 16-byte aligned
* relative to the start of the structure, i.e., don't move them!
*/
struct crypto_aes_ctx {
u32 key_enc[AES_MAX_KEYLENGTH_U32];
u32 key_dec[AES_MAX_KEYLENGTH_U32];
u32 key_length;
};
extern const u32 crypto_ft_tab[4][256];
extern const u32 crypto_fl_tab[4][256];
extern const u32 crypto_it_tab[4][256];
extern const u32 crypto_il_tab[4][256];
int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
unsigned int key_len);
int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
unsigned int key_len);
#endif
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