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u_vbuf_mgr: fix segfault

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max_index could have been less than min_index, which later caused integer
underflow followed by a segfault in memcpy.
This commit is contained in:
Marek Olšák
2011-02-12 03:04:21 +01:00
parent 3803295fc2
commit 20a78b68a3
1 changed files with 1 additions and 1 deletions
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src/gallium/auxiliary/util/u_vbuf_mgr.c
+1 -1
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@@ -562,7 +562,7 @@ void u_vbuf_mgr_draw_begin(struct u_vbuf_mgr *mgrb,
int min_index, max_index;
min_index = info->min_index - info->index_bias;
max_index = MIN2(info->max_index, mgr->b.max_index) - info->index_bias;
max_index = info->max_index - info->index_bias;
/* Translate vertices with non-native layouts or formats. */
if (mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) {