mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-03 15:47:36 +00:00
Code Issues Releases Wiki Activity

crypto: crypto4xx - fix crypto4xx_build_pdr, crypto4xx_build_sdr leak

Browse source 
If one of the later memory allocations in rypto4xx_build_pdr()
fails: dev->pdr (and/or) dev->pdr_uinfo wouldn't be freed.

crypto4xx_build_sdr() has the same issue with dev->sdr.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christian Lamparter 2017-08-25 15:47:24 +02:00 committed by Herbert Xu
parent 40e3b847bf
commit 5d59ad6eea
1 changed files with 9 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
drivers/crypto/amcc/crypto4xx_core.c
View file

@ -209,7 +209,7 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
dev->pdr_pa);
return -ENOMEM;
}
memset(dev->pdr, 0, sizeof(struct ce_pd) * PPC4XX_NUM_PD);
memset(dev->pdr, 0, sizeof(struct ce_pd) * PPC4XX_NUM_PD);
dev->shadow_sa_pool = dma_alloc_coherent(dev->core_dev->device,
256 * PPC4XX_NUM_PD,
&dev->shadow_sa_pool_pa,
@ -242,13 +242,15 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
static void crypto4xx_destroy_pdr(struct crypto4xx_device *dev)
{
if (dev->pdr != NULL)
if (dev->pdr)
dma_free_coherent(dev->core_dev->device,
sizeof(struct ce_pd) * PPC4XX_NUM_PD,
dev->pdr, dev->pdr_pa);
if (dev->shadow_sa_pool)
dma_free_coherent(dev->core_dev->device, 256 * PPC4XX_NUM_PD,
dev->shadow_sa_pool, dev->shadow_sa_pool_pa);
if (dev->shadow_sr_pool)
dma_free_coherent(dev->core_dev->device,
sizeof(struct sa_state_record) * PPC4XX_NUM_PD,
@ -417,12 +419,12 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
static void crypto4xx_destroy_sdr(struct crypto4xx_device *dev)
{
if (dev->sdr != NULL)
if (dev->sdr)
dma_free_coherent(dev->core_dev->device,
sizeof(struct ce_sd) * PPC4XX_NUM_SD,
dev->sdr, dev->sdr_pa);
if (dev->scatter_buffer_va != NULL)
if (dev->scatter_buffer_va)
dma_free_coherent(dev->core_dev->device,
PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
dev->scatter_buffer_va,
@ -1223,7 +1225,7 @@ static int crypto4xx_probe(struct platform_device *ofdev)
rc = crypto4xx_build_gdr(core_dev->dev);
if (rc)
goto err_build_gdr;
goto err_build_pdr;
rc = crypto4xx_build_sdr(core_dev->dev);
if (rc)
@ -1266,12 +1268,11 @@ static int crypto4xx_probe(struct platform_device *ofdev)
err_request_irq:
irq_dispose_mapping(core_dev->irq);
tasklet_kill(&core_dev->tasklet);
crypto4xx_destroy_sdr(core_dev->dev);
err_build_sdr:
crypto4xx_destroy_sdr(core_dev->dev);
crypto4xx_destroy_gdr(core_dev->dev);
err_build_gdr:
crypto4xx_destroy_pdr(core_dev->dev);
err_build_pdr:
crypto4xx_destroy_pdr(core_dev->dev);
kfree(core_dev->dev);
err_alloc_dev:
kfree(core_dev);