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| author | Horia Geanta <horia.geanta@freescale.com> | 2014-04-18 13:01:41 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-04-28 18:21:16 +0800 |
| commit | 3d67be2761dc4b5b792037f296f3394a29581efc (patch) | |
| tree | 6ac408e5c5cf51711740af0cafb7fd1b8e1169b1 | |
| parent | f51f593b3eb194d01d8980316e6bb1f7d72f567a (diff) | |
| download | linux-3d67be2761dc4b5b792037f296f3394a29581efc.tar.bz2 | |
crypto: caam - fix mem leak in ahash_setkey
In case hash key is bigger than algorithm block size, it is hashed.
In this case, memory is allocated to keep this hash in hashed_key.
hashed_key has to be freed on the key_dma dma mapping error path.
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/caam/caamhash.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index 0378328f47a7..2d244e629ed2 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -545,7 +545,8 @@ static int ahash_setkey(struct crypto_ahash *ahash, DMA_TO_DEVICE); if (dma_mapping_error(jrdev, ctx->key_dma)) { dev_err(jrdev, "unable to map key i/o memory\n"); - return -ENOMEM; + ret = -ENOMEM; + goto map_err; } #ifdef DEBUG print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ", @@ -559,6 +560,7 @@ static int ahash_setkey(struct crypto_ahash *ahash, DMA_TO_DEVICE); } +map_err: kfree(hashed_key); return ret; badkey: |