[Mesa-dev] [PATCH] mesa: fix double-freeing of dispatch tables inside glBegin/End.

[Brian Paul]

We allocate dispatch tables for BeginEnd and OutsideBeginEnd.  But
when we destroy the context we were freeing the BeginEnd and Exec
tables.  If Exec==BeginEnd we did a double-free.  This would happen
if the context was destroyed while inside a glBegin/End pair.  Now
free the BeginEnd and OutsideBeginEnd pointers.

Cc: "10.1", "10.2" <mesa-stable at lists.freedesktop.org>
---
 src/mesa/main/context.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 860ae86..8eb426d 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1141,7 +1141,7 @@ _mesa_initialize_context(struct gl_context *ctx,
 fail:
    _mesa_reference_shared_state(ctx, &ctx->Shared, NULL);
    free(ctx->BeginEnd);
-   free(ctx->Exec);
+   free(ctx->OutsideBeginEnd);
    free(ctx->Save);
    return GL_FALSE;
 }
@@ -1242,7 +1242,7 @@ _mesa_free_context_data( struct gl_context *ctx )
 
    /* free dispatch tables */
    free(ctx->BeginEnd);
-   free(ctx->Exec);
+   free(ctx->OutsideBeginEnd);
    free(ctx->Save);
 
    /* Shared context state (display lists, textures, etc) */
-- 
1.7.10.4