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File jasper-CVE-2016-8654.patch of Package jasper
--- jasper-1.900.14/src/libjasper/jpc/jpc_qmfb.c 2016-10-24 08:18:43.000000000 +0200 +++ jasper-1.900.14/src/libjasper/jpc/jpc_qmfb.c 2016-12-13 10:45:00.879969920 +0100 @@ -374,7 +374,7 @@ register jpc_fix_t *dstptr; register int n; register int m; - int hstartcol; + int hstartrow; /* Get a buffer. */ if (bufsize > QMFB_SPLITBUFSIZE) { @@ -385,9 +385,9 @@ } if (numrows >= 2) { - hstartcol = (numrows + 1 - parity) >> 1; - // ORIGINAL (WRONG): m = (parity) ? hstartcol : (numrows - hstartcol); - m = numrows - hstartcol; + hstartrow = (numrows + 1 - parity) >> 1; + // ORIGINAL (WRONG): m = (parity) ? hstartrow : (numrows - hstartrow); + m = numrows - hstartrow; /* Save the samples destined for the highpass channel. */ n = m; @@ -408,7 +408,7 @@ srcptr += stride << 1; } /* Copy the saved samples into the highpass channel. */ - dstptr = &a[hstartcol * stride]; + dstptr = &a[hstartrow * stride]; srcptr = buf; n = m; while (n-- > 0) { @@ -439,20 +439,21 @@ register int n; register int i; int m; - int hstartcol; + int hstartrow; /* Get a buffer. */ if (bufsize > QMFB_SPLITBUFSIZE) { - if (!(buf = jas_alloc2(bufsize, sizeof(jpc_fix_t)))) { + if (!(buf = jas_alloc3(bufsize, JPC_QMFB_COLGRPSIZE, + sizeof(jpc_fix_t)))) { /* We have no choice but to commit suicide in this case. */ abort(); } } if (numrows >= 2) { - hstartcol = (numrows + 1 - parity) >> 1; - // ORIGINAL (WRONG): m = (parity) ? hstartcol : (numrows - hstartcol); - m = numrows - hstartcol; + hstartrow = (numrows + 1 - parity) >> 1; + // ORIGINAL (WRONG): m = (parity) ? hstartrow : (numrows - hstartrow); + m = numrows - hstartrow; /* Save the samples destined for the highpass channel. */ n = m; @@ -485,7 +486,7 @@ srcptr += stride << 1; } /* Copy the saved samples into the highpass channel. */ - dstptr = &a[hstartcol * stride]; + dstptr = &a[hstartrow * stride]; srcptr = buf; n = m; while (n-- > 0) { @@ -526,7 +527,7 @@ /* Get a buffer. */ if (bufsize > QMFB_SPLITBUFSIZE) { - if (!(buf = jas_alloc2(bufsize, sizeof(jpc_fix_t)))) { + if (!(buf = jas_alloc3(bufsize, numcols, sizeof(jpc_fix_t)))) { /* We have no choice but to commit suicide in this case. */ abort(); } @@ -721,7 +722,8 @@ /* Allocate memory for the join buffer from the heap. */ if (bufsize > QMFB_JOINBUFSIZE) { - if (!(buf = jas_alloc3(bufsize, JPC_QMFB_COLGRPSIZE, sizeof(jpc_fix_t)))) { + if (!(buf = jas_alloc3(bufsize, JPC_QMFB_COLGRPSIZE, + sizeof(jpc_fix_t)))) { /* We have no choice but to commit suicide. */ abort(); }
