Blame SOURCES/patch-libjasper-stepsizes-overflow.diff

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--- jasper-1.900.1.orig/src/libjasper/jpc/jpc_cs.c	2007-01-19 22:43:07.000000000 +0100
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+++ jasper-1.900.1/src/libjasper/jpc/jpc_cs.c	2007-04-06 01:29:02.000000000 +0200
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@@ -982,7 +982,10 @@ static int jpc_qcx_getcompparms(jpc_qcxc
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 		compparms->numstepsizes = (len - n) / 2;
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 		break;
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 	}
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-	if (compparms->numstepsizes > 0) {
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+	if (compparms->numstepsizes > 3 * JPC_MAXRLVLS + 1) {
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+		jpc_qcx_destroycompparms(compparms);
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+                return -1;
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+        } else if (compparms->numstepsizes > 0) {
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 		compparms->stepsizes = jas_malloc(compparms->numstepsizes *
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 		  sizeof(uint_fast16_t));
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 		assert(compparms->stepsizes);