From: Dan Carpenter <dan.carpenter@linaro.org>
Date: Wed, 19 Apr 2023 14:30:00 +0000 (+0300)
Subject: hte: tegra-194: Fix off by one in tegra_hte_map_to_line_id()
X-Git-Tag: v6.2.15~61
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aedc364a7c9cd2fb45b4f7c0a41c98365369ff46;p=thirdparty%2Fkernel%2Fstable.git

hte: tegra-194: Fix off by one in tegra_hte_map_to_line_id()

[ Upstream commit e078180d66848a6a890daf0a3ce28dc43cc66790 ]

The "map_sz" is the number of elements in the "m" array so the >
comparison needs to be changed to >= to prevent an out of bounds
read.

Fixes: 09574cca6ad6 ("hte: Add Tegra194 HTE kernel provider")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Dipen Patel <dipenp@nvidia.com>
Signed-off-by: Dipen Patel <dipenp@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/hte/hte-tegra194.c b/drivers/hte/hte-tegra194.c
index 49a27af22742b..d1b579c822797 100644
--- a/drivers/hte/hte-tegra194.c
+++ b/drivers/hte/hte-tegra194.c
@@ -251,7 +251,7 @@ static int tegra_hte_map_to_line_id(u32 eid,
 {
 
 	if (m) {
-		if (eid > map_sz)
+		if (eid >= map_sz)
 			return -EINVAL;
 		if (m[eid].slice == NV_AON_SLICE_INVALID)
 			return -EINVAL;