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crypto: caam - fix operator precedence in shared descriptor allocation 

setkey allocates 16 bytes (CAAM_CMD_SZ *
DESC_AEAD_SHARED_TEXT_LEN) shy of what is needed to
store the shared descriptor, resulting in memory
corruption.  Fix this.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kim Phillips 2011-05-26 13:30:34 +10:00 committed by Herbert Xu
parent 258e43fdb0
commit a18b989a5c
1 changed files with 3 additions and 3 deletions
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6
drivers/crypto/caam/caamalg.c
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@ -238,9 +238,9 @@ static int build_sh_desc_ipsec(struct caam_ctx *ctx)
/* build shared descriptor for this session */
sh_desc = kmalloc(CAAM_CMD_SZ * DESC_AEAD_SHARED_TEXT_LEN +
keys_fit_inline ?
ctx->split_key_pad_len + ctx->enckeylen :
CAAM_PTR_SZ * 2, GFP_DMA | GFP_KERNEL);
(keys_fit_inline ?
ctx->split_key_pad_len + ctx->enckeylen :
CAAM_PTR_SZ * 2), GFP_DMA | GFP_KERNEL);
if (!sh_desc) {
dev_err(jrdev, "could not allocate shared descriptor\n");
return -ENOMEM;