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Backport of upstream commit:
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From 33cc2cfa51a8d0fc3116d16cc1d8fc581b3f9e8d Mon Sep 17 00:00:00 2001
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From: Michael Adams <mdadams@ece.uvic.ca>
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Date: Wed, 19 Oct 2016 15:02:20 -0700
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Subject: [PATCH] The RCT and ICT require at least three components.
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Previously, this was enforced with an assertion. Now, the assertion has been
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replaced with a proper error check.
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diff -pruN jasper-1.900.1.orig/src/libjasper/jpc/jpc_dec.c jasper-1.900.1/src/libjasper/jpc/jpc_dec.c
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--- jasper-1.900.1.orig/src/libjasper/jpc/jpc_dec.c 2017-03-31 15:52:43.000000000 +0200
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+++ jasper-1.900.1/src/libjasper/jpc/jpc_dec.c 2017-03-31 21:58:17.000000000 +0200
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@@ -1070,12 +1070,18 @@ static int jpc_dec_tiledecode(jpc_dec_t
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/* Apply an inverse intercomponent transform if necessary. */
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switch (tile->cp->mctid) {
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case JPC_MCT_RCT:
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- assert(dec->numcomps >= 3);
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+ if (dec->numcomps < 3) {
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+ jas_eprintf("RCT requires at least three components\n");
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+ return -1;
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+ }
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jpc_irct(tile->tcomps[0].data, tile->tcomps[1].data,
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tile->tcomps[2].data);
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break;
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case JPC_MCT_ICT:
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- assert(dec->numcomps >= 3);
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+ if (dec->numcomps < 3) {
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+ jas_eprintf("ICT requires at least three components\n");
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+ return -1;
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+ }
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jpc_iict(tile->tcomps[0].data, tile->tcomps[1].data,
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tile->tcomps[2].data);
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break;
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@@ -1127,7 +1133,7 @@ static int jpc_dec_tiledecode(jpc_dec_t
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JPC_CEILDIV(dec->ystart, cmpt->vstep), jas_matrix_numcols(
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tcomp->data), jas_matrix_numrows(tcomp->data), tcomp->data)) {
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jas_eprintf("write component failed\n");
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- return -4;
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+ return -1;
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}
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}
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