From: Dan Carpenter <dan.carpenter@linaro.org>
Date: Wed, 14 Aug 2024 21:11:51 +0000 (+0300)
Subject: crypto: spacc - Fix bounds checking on spacc->job[]
X-Git-Tag: v6.12-rc1~231^2~54
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b63483b37e813299445d2719488acab2b3f20544;p=thirdparty%2Fkernel%2Flinux.git

crypto: spacc - Fix bounds checking on spacc->job[]

This bounds checking is off by one.  The > should be >=.  The
spacc->job[] array is allocated in spacc_init() and it has
SPACC_MAX_JOBS elements.

Fixes: 8ebb14deef0f ("crypto: spacc - Enable SPAcc AUTODETECT")
Fixes: c8981d9230d8 ("crypto: spacc - Add SPAcc Skcipher support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/dwc-spacc/spacc_core.c b/drivers/crypto/dwc-spacc/spacc_core.c
index 9bc49de06bb2b..e3380528e82b8 100644
--- a/drivers/crypto/dwc-spacc/spacc_core.c
+++ b/drivers/crypto/dwc-spacc/spacc_core.c
@@ -1024,7 +1024,7 @@ int spacc_set_operation(struct spacc_device *spacc, int handle, int op,
 	int ret = CRYPTO_OK;
 	struct spacc_job *job = NULL;
 
-	if (handle < 0 || handle > SPACC_MAX_JOBS)
+	if (handle < 0 || handle >= SPACC_MAX_JOBS)
 		return -ENXIO;
 
 	job = &spacc->job[handle];
@@ -1105,7 +1105,7 @@ int spacc_packet_enqueue_ddt_ex(struct spacc_device *spacc, int use_jb,
 	struct spacc_job *job;
 	int ret = CRYPTO_OK, proc_len;
 
-	if (job_idx < 0 || job_idx > SPACC_MAX_JOBS)
+	if (job_idx < 0 || job_idx >= SPACC_MAX_JOBS)
 		return -ENXIO;
 
 	switch (prio)  {
@@ -1331,7 +1331,7 @@ static int spacc_set_auxinfo(struct spacc_device *spacc, int jobid,
 	int ret = CRYPTO_OK;
 	struct spacc_job *job;
 
-	if (jobid < 0 || jobid > SPACC_MAX_JOBS)
+	if (jobid < 0 || jobid >= SPACC_MAX_JOBS)
 		return -ENXIO;
 
 	job = &spacc->job[jobid];
@@ -2364,7 +2364,7 @@ int spacc_set_key_exp(struct spacc_device *spacc, int job_idx)
 	struct spacc_ctx *ctx = NULL;
 	struct spacc_job *job = NULL;
 
-	if (job_idx < 0 || job_idx > SPACC_MAX_JOBS) {
+	if (job_idx < 0 || job_idx >= SPACC_MAX_JOBS) {
 		pr_debug("ERR: Invalid Job id specified (out of range)\n");
 		return -ENXIO;
 	}