From: Thomas Hindoe Paaboel Andersen <phomes@gmail.com>
Date: Wed, 13 Apr 2016 01:06:05 +0000 (+0200)
Subject: tgsi: fix buffer overflow
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b89708f95fafc458cc79bc210407b723a0f0f78c;p=mesa.git

tgsi: fix buffer overflow

Increase r to four channels as rgba is written to it
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index fb5105173c6..41dd0f0466a 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -4011,7 +4011,7 @@ static void
 exec_atomop_buf(struct tgsi_exec_machine *mach,
                 const struct tgsi_full_instruction *inst)
 {
-   union tgsi_exec_channel r[3];
+   union tgsi_exec_channel r[4];
    union tgsi_exec_channel value[4], value2[4];
    float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
    float rgba2[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];