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$NetBSD: patch-bc,v 1.3 2010/06/30 12:44:55 tron Exp $
Fix for security vulnerability reported in CVE-2010-1628 taken from here:
http://bugs.ghostscript.com/attachment.cgi?id=6350
--- psi/ialloc.c.orig 2008-08-28 23:48:19.000000000 +0100
+++ psi/ialloc.c 2010-06-30 13:31:32.000000000 +0100
@@ -185,7 +185,14 @@
*/
chunk_t *pcc = mem->pcc;
ref *end;
+ alloc_change_t *cp = 0;
+ int code = 0;
+ if ((gs_memory_t *)mem != mem->stable_memory) {
+ code = alloc_save_change_alloc(mem, "gs_alloc_ref_array", &cp);
+ if (code < 0)
+ return code;
+ }
obj = gs_alloc_struct_array((gs_memory_t *) mem, num_refs + 1,
ref, &st_refs, cname);
if (obj == 0)
@@ -210,14 +217,10 @@
chunk_locate_ptr(obj, &cl);
cl.cp->has_refs = true;
}
- if ((gs_memory_t *)mem != mem->stable_memory) {
- ref_packed **ppr = 0;
- int code = alloc_save_change_alloc(mem, "gs_alloc_ref_array", &ppr);
- if (code < 0)
- return code;
- if (ppr)
- *ppr = (ref_packed *)obj;
- }
+ if (cp) {
+ mem->changes = cp;
+ cp->where = (ref_packed *)obj;
+ }
}
make_array(parr, attrs | mem->space, num_refs, obj);
return 0;
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