Hi Greg,
This was missing in 4.14-stable. Please apply to your queue.
--
Regards
Sudip
>From aea00e5caac52ffe575b3c94d6bd47703ab44b0e Mon Sep 17 00:00:00 2001
From: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx>
Date: Sun, 7 Jan 2018 12:14:22 +0000
Subject: [PATCH] stating: ccree: revert "staging: ccree: fix leak of import() after init()"
commit 293edc27f8bc8a44978e9e95902b07b74f1c7523 upstream
This reverts commit c5f39d07860c ("staging: ccree: fix leak of import()
after init()") and commit aece09024414 ("staging: ccree: Uninitialized
return in ssi_ahash_import()").
This is the wrong solution and ends up relying on uninitialized memory,
although it was not obvious to me at the time.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
---
drivers/staging/ccree/ssi_hash.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/ssi_hash.c
index e266a70a1b32..13291aeaf350 100644
--- a/drivers/staging/ccree/ssi_hash.c
+++ b/drivers/staging/ccree/ssi_hash.c
@@ -1781,7 +1781,7 @@ static int ssi_ahash_import(struct ahash_request *req, const void *in)
struct device *dev = &ctx->drvdata->plat_dev->dev;
struct ahash_req_ctx *state = ahash_request_ctx(req);
u32 tmp;
- int rc = 0;
+ int rc;
memcpy(&tmp, in, sizeof(u32));
if (tmp != CC_EXPORT_MAGIC) {
@@ -1790,12 +1790,9 @@ static int ssi_ahash_import(struct ahash_request *req, const void *in)
}
in += sizeof(u32);
- /* call init() to allocate bufs if the user hasn't */
- if (!state->digest_buff) {
- rc = ssi_hash_init(state, ctx);
- if (rc)
- goto out;
- }
+ rc = ssi_hash_init(state, ctx);
+ if (rc)
+ goto out;
dma_sync_single_for_cpu(dev, state->digest_buff_dma_addr,
ctx->inter_digestsize, DMA_BIDIRECTIONAL);
--
2.11.0
