From: Sasha Levin <sashal@kernel.org> To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Yunfeng Ye <yeyunfeng@huawei.com>, Herbert Xu <herbert@gondor.apana.org.au>, Sasha Levin <sashal@kernel.org>, linux-crypto@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 559/671] crypto: hisilicon - Matching the dma address for dma_pool_free() Date: Thu, 16 Jan 2020 12:03:17 -0500 Message-ID: <20200116170509.12787-296-sashal@kernel.org> (raw) In-Reply-To: <20200116170509.12787-1-sashal@kernel.org> From: Yunfeng Ye <yeyunfeng@huawei.com> [ Upstream commit e00371af1d4ce73d527d8ee69fda2febaf5a42c2 ] When dma_pool_zalloc() fail in sec_alloc_and_fill_hw_sgl(), dma_pool_free() is invoked, but the parameters that sgl_current and sgl_current->next_sgl is not match. Using sec_free_hw_sgl() instead of the original free routine. Fixes: 915e4e8413da ("crypto: hisilicon - SEC security accelerator driver") Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/crypto/hisilicon/sec/sec_algs.c | 44 +++++++++++-------------- 1 file changed, 19 insertions(+), 25 deletions(-) diff --git a/drivers/crypto/hisilicon/sec/sec_algs.c b/drivers/crypto/hisilicon/sec/sec_algs.c index db2983c51f1e..bf9658800bda 100644 --- a/drivers/crypto/hisilicon/sec/sec_algs.c +++ b/drivers/crypto/hisilicon/sec/sec_algs.c @@ -153,6 +153,24 @@ static void sec_alg_skcipher_init_context(struct crypto_skcipher *atfm, ctx->cipher_alg); } +static void sec_free_hw_sgl(struct sec_hw_sgl *hw_sgl, + dma_addr_t psec_sgl, struct sec_dev_info *info) +{ + struct sec_hw_sgl *sgl_current, *sgl_next; + dma_addr_t sgl_next_dma; + + sgl_current = hw_sgl; + while (sgl_current) { + sgl_next = sgl_current->next; + sgl_next_dma = sgl_current->next_sgl; + + dma_pool_free(info->hw_sgl_pool, sgl_current, psec_sgl); + + sgl_current = sgl_next; + psec_sgl = sgl_next_dma; + } +} + static int sec_alloc_and_fill_hw_sgl(struct sec_hw_sgl **sec_sgl, dma_addr_t *psec_sgl, struct scatterlist *sgl, @@ -199,36 +217,12 @@ static int sec_alloc_and_fill_hw_sgl(struct sec_hw_sgl **sec_sgl, return 0; err_free_hw_sgls: - sgl_current = *sec_sgl; - while (sgl_current) { - sgl_next = sgl_current->next; - dma_pool_free(info->hw_sgl_pool, sgl_current, - sgl_current->next_sgl); - sgl_current = sgl_next; - } + sec_free_hw_sgl(*sec_sgl, *psec_sgl, info); *psec_sgl = 0; return ret; } -static void sec_free_hw_sgl(struct sec_hw_sgl *hw_sgl, - dma_addr_t psec_sgl, struct sec_dev_info *info) -{ - struct sec_hw_sgl *sgl_current, *sgl_next; - dma_addr_t sgl_next_dma; - - sgl_current = hw_sgl; - while (sgl_current) { - sgl_next = sgl_current->next; - sgl_next_dma = sgl_current->next_sgl; - - dma_pool_free(info->hw_sgl_pool, sgl_current, psec_sgl); - - sgl_current = sgl_next; - psec_sgl = sgl_next_dma; - } -} - static int sec_alg_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int keylen, enum sec_cipher_alg alg) -- 2.20.1
next prev parent reply index Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <20200116170509.12787-1-sashal@kernel.org> 2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 348/671] crypto: caam - fix caam_dump_sg that iterates through scatterlist Sasha Levin 2020-01-16 17:00 ` [PATCH AUTOSEL 4.19 371/671] crypto: ccp - fix AES CFB error exposed by new test vectors Sasha Levin 2020-01-16 17:00 ` [PATCH AUTOSEL 4.19 372/671] crypto: ccp - Fix 3DES complaint from ccp-crypto module Sasha Levin 2020-01-16 17:00 ` [PATCH AUTOSEL 4.19 388/671] crypto: talitos - fix AEAD processing Sasha Levin 2020-01-16 17:00 ` [PATCH AUTOSEL 4.19 398/671] crypto: inside-secure - fix zeroing of the request in ahash_exit_inv Sasha Levin 2020-01-16 17:00 ` [PATCH AUTOSEL 4.19 399/671] crypto: inside-secure - fix queued len computation Sasha Levin 2020-01-16 17:01 ` [PATCH AUTOSEL 4.19 474/671] crypto: ccp - Reduce maximum stack usage Sasha Levin 2020-01-16 17:02 ` [PATCH AUTOSEL 4.19 486/671] crypto: caam - free resources in case caam_rng registration failed Sasha Levin 2020-01-16 17:03 ` Sasha Levin [this message] 2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 617/671] hwrng: omap3-rom - Fix missing clock by probing with device tree Sasha Levin 2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 658/671] crypto: sun4i-ss - fix big endian issues Sasha Levin
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