Mesa (master): glsl: check for leading zeros in array index validation

[Timothy Arceri]

Module: Mesa
Branch: master
Commit: 09c440c718992d48ef118c1aad6929ad215ccd3b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=09c440c718992d48ef118c1aad6929ad215ccd3b

Author: Timothy Arceri <t_arceri at yahoo.com.au>
Date:   Fri Jul  3 08:45:30 2015 +1000

glsl: check for leading zeros in array index validation

Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias at igalia.com>

---

 src/glsl/linker.cpp |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 28ad2f3..58dd9fb 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -462,6 +462,10 @@ parse_program_resource_name(const GLchar *name,
    if (array_index < 0)
       return -1;
 
+   /* Check for leading zero */
+   if (name[i] == '0' && name[i+1] != ']')
+      return -1;
+
    *out_base_name_end = name + (i - 1);
    return array_index;
 }