netpbm/netpbm-security-code.patch

Index: netpbm-10.96.4/analyzer/pgmtexture.c
===================================================================
--- netpbm-10.96.4.orig/analyzer/pgmtexture.c	2021-12-13 13:12:01.856665397 +0100
+++ netpbm-10.96.4/analyzer/pgmtexture.c	2021-12-13 13:17:36.810714143 +0100
@@ -53,7 +53,7 @@ vector(unsigned int const nl,
     float * v;
 
     assert(nh >= nl);
-
+    overflow_add(nh - nl, 1);
     MALLOCARRAY(v, (unsigned) (nh - nl + 1));
 
     if (v == NULL)
@@ -85,6 +85,7 @@ matrix (unsigned int const nrl,
     assert(nrh >= nrl);
 
     /* allocate pointers to rows */
+    overflow_add(nrh - nrl, 1);
     MALLOCARRAY(m, (unsigned) (nrh - nrl + 1));
     if (m == NULL)
         pm_error("Unable to allocate memory for a matrix.");
@@ -92,7 +93,7 @@ matrix (unsigned int const nrl,
     m -= ncl;
 
     assert (nch >= ncl);
-
+    overflow_add(nch - ncl, 1);
     /* allocate rows and set pointers to them */
     for (i = nrl; i <= nrh; ++i) {
         MALLOCARRAY(m[i], (unsigned) (nch - ncl + 1));
Index: netpbm-10.96.4/converter/other/gemtopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/gemtopnm.c	2021-12-13 13:11:49.684590746 +0100
+++ netpbm-10.96.4/converter/other/gemtopnm.c	2021-12-13 13:17:36.810714143 +0100
@@ -105,7 +105,7 @@ main(argc, argv)
         type = PPM_TYPE;
 
     pnm_writepnminit( stdout, cols, rows, MAXVAL, type, 0 );
-
+    overflow_add(cols, padright);
     {
         /* allocate input row data structure */
         int plane;
Index: netpbm-10.96.4/converter/other/jpegtopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/jpegtopnm.c	2021-12-13 13:11:51.248600341 +0100
+++ netpbm-10.96.4/converter/other/jpegtopnm.c	2021-12-13 13:17:36.810714143 +0100
@@ -862,6 +862,8 @@ convertImage(FILE *
     /* Calculate output image dimensions so we can allocate space */
     jpeg_calc_output_dimensions(cinfoP);
 
+    overflow2(cinfoP->output_width, cinfoP->output_components);
+
     /* Start decompressor */
     jpeg_start_decompress(cinfoP);
 
Index: netpbm-10.96.4/converter/other/pbmtopgm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/pbmtopgm.c	2021-12-13 13:11:50.244594183 +0100
+++ netpbm-10.96.4/converter/other/pbmtopgm.c	2021-12-13 13:17:36.810714143 +0100
@@ -60,6 +60,7 @@ main(int argc, char *argv[]) {
 
 
     outrow = pgm_allocrow(cols) ;
+    overflow2(width, height);
     maxval = MIN(PGM_OVERALLMAXVAL, width*height);
     pgm_writepgminit(stdout, cols, rows, maxval, 0) ;
 
Index: netpbm-10.96.4/converter/other/pnmtoddif.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/pnmtoddif.c	2021-12-13 13:11:50.244594183 +0100
+++ netpbm-10.96.4/converter/other/pnmtoddif.c	2021-12-13 13:17:36.810714143 +0100
@@ -629,6 +629,7 @@ main(int argc, char *argv[]) {
     switch (PNM_FORMAT_TYPE(format)) {
     case PBM_TYPE:
         ip.bits_per_pixel = 1;
+        overflow_add(cols, 7);
         ip.bytes_per_line = (cols + 7) / 8;
         ip.spectral = 2;
         ip.components = 1;
@@ -644,6 +645,7 @@ main(int argc, char *argv[]) {
         ip.polarity = 2;
         break;
     case PPM_TYPE:
+        overflow2(cols, 3);
         ip.bytes_per_line = 3 * cols;
         ip.bits_per_pixel = 24;
         ip.spectral = 5;
Index: netpbm-10.96.4/converter/other/pnmtojpeg.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/pnmtojpeg.c	2021-12-13 13:11:50.244594183 +0100
+++ netpbm-10.96.4/converter/other/pnmtojpeg.c	2021-12-13 13:17:36.810714143 +0100
@@ -606,7 +606,11 @@ read_scan_script(j_compress_ptr const ci
            want JPOOL_PERMANENT.
         */
         const unsigned int scan_info_size = nscans * sizeof(jpeg_scan_info);
-        jpeg_scan_info * const scan_info =
+        const jpeg_scan_info * scan_info;
+
+        overflow2(nscans, sizeof(jpeg_scan_info));
+
+        scan_info =
             (jpeg_scan_info *)
             (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
                                         scan_info_size);
@@ -938,6 +942,8 @@ compute_rescaling_array(JSAMPLE ** const
   const long half_maxval = maxval / 2;
   long val;
 
+  overflow_add(maxval, 1);
+  overflow2(maxval+1, sizeof(JSAMPLE));
   *rescale_p = (JSAMPLE *)
     (cinfo.mem->alloc_small) ((j_common_ptr) &cinfo, JPOOL_IMAGE,
                               (size_t) (((long) maxval + 1L) *
@@ -1016,6 +1022,7 @@ convert_scanlines(struct jpeg_compress_s
     */
 
   /* Allocate the libpnm output and compressor input buffers */
+  overflow2(cinfo_p->image_width, cinfo_p->input_components);
   buffer = (*cinfo_p->mem->alloc_sarray)
     ((j_common_ptr) cinfo_p, JPOOL_IMAGE,
      (unsigned int) cinfo_p->image_width * cinfo_p->input_components,
Index: netpbm-10.96.4/converter/other/pnmtops.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/pnmtops.c	2021-12-13 13:11:48.824585472 +0100
+++ netpbm-10.96.4/converter/other/pnmtops.c	2021-12-13 13:17:36.810714143 +0100
@@ -294,17 +294,21 @@ parseCommandLine(int argc, const char **
     validateCompDimension(width, 72, "-width value");
     validateCompDimension(height, 72, "-height value");
 
+    overflow2(width, 72);
     cmdlineP->width  = width * 72;
+    overflow2(height, 72);
     cmdlineP->height = height * 72;
 
     if (imagewidthSpec) {
         validateCompDimension(imagewidth, 72, "-imagewidth value");
+        overflow2(imagewidth, 72);
         cmdlineP->imagewidth = imagewidth * 72;
     }
     else
         cmdlineP->imagewidth = 0;
     if (imageheightSpec) {
-        validateCompDimension(imagewidth, 72, "-imageheight value");
+        validateCompDimension(imageheight, 72, "-imageheight value");
+        overflow2(imageheight, 72);
         cmdlineP->imageheight = imageheight * 72;
     }
     else
Index: netpbm-10.96.4/converter/other/pnmtorle.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/pnmtorle.c	2021-12-13 13:11:50.248594206 +0100
+++ netpbm-10.96.4/converter/other/pnmtorle.c	2021-12-13 13:17:36.810714143 +0100
@@ -19,6 +19,8 @@
  * If you modify this software, you should include a notice giving the
  * name of the person performing the modification, the date of modification,
  * and the reason for such modification.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 /*
  * pnmtorle - A program which will convert pbmplus (ppm or pgm) images
Index: netpbm-10.96.4/converter/other/pnmtosgi.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/pnmtosgi.c	2021-12-13 13:11:50.252594232 +0100
+++ netpbm-10.96.4/converter/other/pnmtosgi.c	2021-12-13 13:17:36.810714143 +0100
@@ -185,6 +185,7 @@ buildChannels(FILE *       const ifP,
     ScanElem * temp;
 
     if (storage != STORAGE_VERBATIM) {
+        overflow2(channels, rows);
         MALLOCARRAY_NOFAIL(table, channels * rows);
     } else
         table = NULL;
Index: netpbm-10.96.4/converter/other/rletopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/rletopnm.c	2021-12-13 13:11:51.244600317 +0100
+++ netpbm-10.96.4/converter/other/rletopnm.c	2021-12-13 13:17:36.810714143 +0100
@@ -19,6 +19,8 @@
  * If you modify this software, you should include a notice giving the
  * name of the person performing the modification, the date of modification,
  * and the reason for such modification.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 /*
  * rletopnm - A conversion program to convert from Utah's "rle" image format
Index: netpbm-10.96.4/converter/other/sgitopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/sgitopnm.c	2021-12-13 13:11:51.244600317 +0100
+++ netpbm-10.96.4/converter/other/sgitopnm.c	2021-12-13 13:17:36.810714143 +0100
@@ -377,10 +377,14 @@ readChannels(FILE *       const ifP,
         MALLOCARRAY_NOFAIL(image, head->ysize);
     } else {
         maxchannel = 3;
+        overflow2(head->ysize, maxchannel);
         MALLOCARRAY_NOFAIL(image, head->ysize * maxchannel);
     }
-    if (table)
+    if (table) {
+        overflow2(head->xsize, 2);
+        overflow_add(head->xsize*2, 2);
         MALLOCARRAY_NOFAIL(temp, WORSTCOMPR(head->xsize));
+    }
 
     for (channel = 0; channel < maxchannel; ++channel) {
         unsigned int row;
Index: netpbm-10.96.4/converter/other/sirtopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/sirtopnm.c	2021-12-13 13:11:51.272600489 +0100
+++ netpbm-10.96.4/converter/other/sirtopnm.c	2021-12-13 13:17:36.810714143 +0100
@@ -69,6 +69,7 @@ char* argv[];
 	    }
 	    break;
 	case PPM_TYPE:
+	    overflow3(cols, rows, 3);
 	    picsize = cols * rows * 3;
 	    planesize = cols * rows;
             if ( !( sirarray = (unsigned char*) malloc( picsize ) ) ) 
Index: netpbm-10.96.4/converter/other/tifftopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/tifftopnm.c	2021-12-13 13:11:50.744597250 +0100
+++ netpbm-10.96.4/converter/other/tifftopnm.c	2021-12-13 13:17:36.810714143 +0100
@@ -1372,7 +1372,9 @@ convertRasterByRows(pnmOut *       const
     if (scanbuf == NULL)
         pm_error("can't allocate memory for scanline buffer");
 
-    MALLOCARRAY(samplebuf, cols * spp);
+    /* samplebuf is unsigned int * !!! */
+    samplebuf = (unsigned int *) malloc3(cols , sizeof(unsigned int) , spp);
+
     if (samplebuf == NULL)
         pm_error("can't allocate memory for row buffer");
 
Index: netpbm-10.96.4/converter/other/xwdtopnm.c
===================================================================
--- netpbm-10.96.4.orig/converter/other/xwdtopnm.c	2021-12-13 13:11:49.684590746 +0100
+++ netpbm-10.96.4/converter/other/xwdtopnm.c	2021-12-13 13:17:36.810714143 +0100
@@ -210,6 +210,10 @@ processX10Header(X10WDFileHeader *  cons
         *colorsP = pnm_allocrow(2);
         PNM_ASSIGN1((*colorsP)[0], 0);
         PNM_ASSIGN1((*colorsP)[1], *maxvalP);
+        overflow_add(h10P->pixmap_width, 15);
+        if(h10P->pixmap_width < 0)
+            pm_error("assert: negative width");
+        overflow2((((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width), 8);
         *padrightP =
             (((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width) * 8;
         *bits_per_itemP = 16;
@@ -635,6 +639,7 @@ processX11Header(X11WDFileHeader *  cons
 
     *colsP = h11FixedP->pixmap_width;
     *rowsP = h11FixedP->pixmap_height;
+    overflow2(h11FixedP->bytes_per_line, 8);
     *padrightP =
         h11FixedP->bytes_per_line * 8 -
         h11FixedP->pixmap_width * h11FixedP->bits_per_pixel;
Index: netpbm-10.96.4/converter/pbm/mdatopbm.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/mdatopbm.c	2021-12-13 13:11:51.256600390 +0100
+++ netpbm-10.96.4/converter/pbm/mdatopbm.c	2021-12-13 13:17:36.814714167 +0100
@@ -245,10 +245,13 @@ main(int argc, char **argv) {
         pm_readlittleshort(infile, &yy); nInCols = yy;
     }
     
+    overflow2(nOutCols, 8);
     nOutCols = 8 * nInCols;
     nOutRows = nInRows;
-    if (bScale) 
+    if (bScale) {
+        overflow2(nOutRows, 2);
         nOutRows *= 2;
+    }
 
     data = pbm_allocarray(nOutCols, nOutRows);
     
Index: netpbm-10.96.4/converter/pbm/mgrtopbm.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/mgrtopbm.c	2021-12-13 13:17:36.814714167 +0100
+++ netpbm-10.96.4/converter/pbm/mgrtopbm.c	2021-12-13 13:22:52.624641835 +0100
@@ -104,6 +104,8 @@ readMgrHeader(FILE *          const ifP,
 
     interpHdrWidth (head, colsP);
     interpHdrHeight(head, rowsP);
+
+    overflow_add(*colsP, pad);
     
     *padrightP = ( ( *colsP + pad - 1 ) / pad ) * pad - *colsP;
 }
Index: netpbm-10.96.4/converter/pbm/pbmtogem.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmtogem.c	2021-12-13 13:11:51.256600390 +0100
+++ netpbm-10.96.4/converter/pbm/pbmtogem.c	2021-12-13 13:17:36.814714167 +0100
@@ -79,6 +79,7 @@ putinit (int const rows, int const cols)
   bitsperitem = 0;
   bitshift = 7;
   outcol = 0;
+  overflow_add(cols, 7);
   outmax = (cols + 7) / 8;
   outrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char));
   lastrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char));
Index: netpbm-10.96.4/converter/pbm/pbmtogo.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmtogo.c	2021-12-13 13:11:51.340600906 +0100
+++ netpbm-10.96.4/converter/pbm/pbmtogo.c	2021-12-13 13:17:36.814714167 +0100
@@ -158,6 +158,7 @@ main(int           argc,
     bitrow = pbm_allocrow(cols);
 
     /* Round cols up to the nearest multiple of 8. */
+    overflow_add(cols, 7);
     rucols = ( cols + 7 ) / 8;
     bytesperrow = rucols;       /* GraphOn uses bytes */
     rucols = rucols * 8;
Index: netpbm-10.96.4/converter/pbm/pbmtolj.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmtolj.c	2021-12-13 13:11:51.364601052 +0100
+++ netpbm-10.96.4/converter/pbm/pbmtolj.c	2021-12-13 13:17:36.814714167 +0100
@@ -120,7 +120,11 @@ parseCommandLine(int argc, char ** argv,
 static void
 allocateBuffers(unsigned int const cols) {
 
+    overflow_add(cols, 8);
     rowBufferSize = (cols + 7) / 8;
+    overflow_add(rowBufferSize, 128);
+    overflow_add(rowBufferSize, rowBufferSize+128);
+    overflow_add(rowBufferSize+10, rowBufferSize/8);
     packBufferSize = rowBufferSize + (rowBufferSize + 127) / 128 + 1;
     deltaBufferSize = rowBufferSize + rowBufferSize / 8 + 10;
 
Index: netpbm-10.96.4/converter/pbm/pbmtomda.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmtomda.c	2021-12-13 13:11:51.572602329 +0100
+++ netpbm-10.96.4/converter/pbm/pbmtomda.c	2021-12-13 13:17:36.814714167 +0100
@@ -179,6 +179,7 @@ int main(int argc, char **argv)
     
     nOutRowsUnrounded = bScale ? nInRows/2 : nInRows;
 
+    overflow_add(nOutRowsUnrounded, 3);
     nOutRows = ((nOutRowsUnrounded + 3) / 4) * 4;
         /* MDA wants rows a multiple of 4 */   
     nOutCols = nInCols / 8;
Index: netpbm-10.96.4/converter/pbm/pbmtoppa/pbm.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmtoppa/pbm.c	2021-12-13 13:11:51.264600439 +0100
+++ netpbm-10.96.4/converter/pbm/pbmtoppa/pbm.c	2021-12-13 13:17:36.814714167 +0100
@@ -154,6 +154,7 @@ pbm_readline(pbm_stat *      const pbmSt
                 break;
             case P4: {
                 int tmp, tmp2;
+                overflow_add(pbmStatP->width, 7);
                 tmp = (pbmStatP->width+7)/8;
                 tmp2 = fread(data,1,tmp,pbmStatP->fptr);
                 if (tmp2 == tmp) {
@@ -186,6 +187,7 @@ pbm_unreadline(pbm_stat * const pbmStatP
 
     if (!pbmStatP->unread) {
         pbmStatP->unread = 1;
+        overflow_add(pbmStatP->width, 7);
         pbmStatP->revdata = malloc ((pbmStatP->width+7)/8);
         memcpy(pbmStatP->revdata, data, (pbmStatP->width+7)/8);
         --pbmStatP->current_line;
Index: netpbm-10.96.4/converter/pbm/pbmtoppa/pbmtoppa.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmtoppa/pbmtoppa.c	2021-12-13 13:11:51.264600439 +0100
+++ netpbm-10.96.4/converter/pbm/pbmtoppa/pbmtoppa.c	2021-12-13 13:17:36.814714167 +0100
@@ -453,6 +453,7 @@ main(int argc, char *argv[]) {
             pm_error("main(): unrecognized parameter '%s'", argv[argn]);
     }
 
+    overflow_add(Width, 7);
     Pwidth=(Width+7)/8;
     printer.fptr=out;
 
Index: netpbm-10.96.4/converter/pbm/pbmtoxbm.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmtoxbm.c	2021-12-13 13:11:51.368601078 +0100
+++ netpbm-10.96.4/converter/pbm/pbmtoxbm.c	2021-12-13 13:17:36.814714167 +0100
@@ -353,6 +353,8 @@ convertRaster(FILE *          const ifP,
     unsigned char * bitrow;
     unsigned int row;
 
+    overflow_add(cols, padright);
+
     putinit(xbmVersion);
 
     bitrow = pbm_allocrow_packed(cols + padright);
Index: netpbm-10.96.4/converter/pbm/pbmto4425.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pbmto4425.c	2021-12-13 13:11:51.552602205 +0100
+++ netpbm-10.96.4/converter/pbm/pbmto4425.c	2021-12-13 13:17:36.814714167 +0100
@@ -2,6 +2,7 @@
 
 #include "nstring.h"
 #include "pbm.h"
+#include <string.h>
 
 static char bit_table[2][3] = {
 {1, 4, 0x10},
@@ -160,7 +161,7 @@ main(int argc, char * argv[]) {
     xres = vmap_width * 2;
     yres = vmap_height * 3;
 
-    vmap = malloc(vmap_width * vmap_height * sizeof(char));
+    vmap = malloc3(vmap_width, vmap_height, sizeof(char));
     if(vmap == NULL)
 	{
         pm_error( "Cannot allocate memory" );
Index: netpbm-10.96.4/converter/pbm/pktopbm.c
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/pktopbm.c	2021-12-13 13:11:51.376601127 +0100
+++ netpbm-10.96.4/converter/pbm/pktopbm.c	2021-12-13 13:17:36.814714167 +0100
@@ -280,6 +280,7 @@ main(int argc, char *argv[]) {
         if (flagbyte == 7) {            /* long form preamble */
             integer packetlength = get32() ;    /* character packet length */
             car = get32() ;         /* character number */
+            overflow_add(packetlength, pktopbm_pkloc);
             endofpacket = packetlength + pktopbm_pkloc;
                 /* calculate end of packet */
             if ((car >= MAXPKCHAR) || !filename[car]) {
Index: netpbm-10.96.4/converter/pbm/thinkjettopbm.l
===================================================================
--- netpbm-10.96.4.orig/converter/pbm/thinkjettopbm.l	2021-12-13 13:11:51.572602329 +0100
+++ netpbm-10.96.4/converter/pbm/thinkjettopbm.l	2021-12-13 13:17:36.814714167 +0100
@@ -114,7 +114,9 @@ DIG             [0-9]
 <RASTERMODE>\033\*b{DIG}+W  {
                             int l;
                             if (rowCount >= rowCapacity) {
+				overflow_add(rowCapacity, 100);
                                 rowCapacity += 100;
+				overflow2(rowCapacity, sizeof *rows);
                                 rows = realloc (rows, rowCapacity * sizeof *rows);
                                 if (rows == NULL)
                                     pm_error ("Out of memory.");
@@ -226,6 +228,8 @@ yywrap (void)
     /*
      * Quite simple since ThinkJet bit arrangement matches PBM
      */
+
+    overflow2(maxRowLength, 8);
     pbm_writepbminit(stdout, maxRowLength*8, rowCount, 0);
 
     packed_bitrow = malloc(maxRowLength);
Index: netpbm-10.96.4/converter/pgm/lispmtopgm.c
===================================================================
--- netpbm-10.96.4.orig/converter/pgm/lispmtopgm.c	2021-12-13 13:11:54.848622422 +0100
+++ netpbm-10.96.4/converter/pgm/lispmtopgm.c	2021-12-13 13:17:36.814714167 +0100
@@ -58,6 +58,7 @@ main( argc, argv )
         pm_error( "depth (%d bits) is too large", depth);
 
     pgm_writepgminit( stdout, cols, rows, (gray) maxval, 0 );
+    overflow_add(cols, 7);
     grayrow = pgm_allocrow( ( cols + 7 ) / 8 * 8 );
 
     for ( row = 0; row < rows; ++row )
@@ -102,7 +103,9 @@ getinit( file, colsP, rowsP, depthP, pad
     
     if ( *depthP == 0 )
 	*depthP = 1;	/* very old file */
-    
+
+    overflow_add((int)colsP, 31);
+
     *padrightP = ( ( *colsP + 31 ) / 32 ) * 32 - *colsP;
     
     if ( *colsP != (cols_32 - *padrightP) ) {
Index: netpbm-10.96.4/converter/pgm/psidtopgm.c
===================================================================
--- netpbm-10.96.4.orig/converter/pgm/psidtopgm.c	2021-12-13 13:11:54.852622445 +0100
+++ netpbm-10.96.4/converter/pgm/psidtopgm.c	2021-12-13 13:17:36.814714167 +0100
@@ -78,6 +78,7 @@ main(int     argc,
         pm_error("bits/sample (%d) is too large.", bitspersample);
 
     pgm_writepgminit(stdout, cols, rows, maxval, 0);
+    overflow_add(cols, 7);
     grayrow = pgm_allocrow((cols + 7) / 8 * 8);
     for (row = 0; row < rows; ++row) {
         unsigned int col;
Index: netpbm-10.96.4/converter/ppm/ilbmtoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ilbmtoppm.c	2021-12-13 13:11:54.080617711 +0100
+++ netpbm-10.96.4/converter/ppm/ilbmtoppm.c	2021-12-13 13:17:36.814714167 +0100
@@ -608,6 +608,7 @@ decode_row(FILE *          const ifP,
     rawtype *chp;
 
     cols = bmhdP->w;
+    overflow_add(cols, 15);
     bytes = RowBytes(cols);
     for( plane = 0; plane < nPlanes; plane++ ) {
         int mask;
@@ -695,6 +696,23 @@ decode_mask(FILE *          const ifP,
  Multipalette handling
  ****************************************************************************/
 
+static void *
+xmalloc2(x, y)
+    int x;
+    int y;
+{
+    void *mem;
+
+    overflow2(x,y);
+    if( x * y == 0 )
+        return NULL;
+
+    mem = malloc2(x,y);
+    if( mem == NULL )
+        pm_error("out of memory allocating %d bytes", x * y);
+    return mem;
+}
+
 
 static void
 multi_adjust(ColorMap *            const cmapP,
@@ -1363,6 +1381,10 @@ dcol_to_ppm(FILE *         const ifP,
     if( redmaxval != maxval || greenmaxval != maxval || bluemaxval != maxval )
         pm_message("scaling colors to %d bits", pm_maxvaltobits(maxval));
 
+    overflow_add(redmaxval, 1);
+    overflow_add(greenmaxval, 1);
+    overflow_add(bluemaxval, 1);
+
     MALLOCARRAY_NOFAIL(redtable,   redmaxval   +1);
     MALLOCARRAY_NOFAIL(greentable, greenmaxval +1);
     MALLOCARRAY_NOFAIL(bluetable,  bluemaxval  +1);
@@ -1802,7 +1824,9 @@ PCHG_ConvertSmall(PCHGHeader *    const
             ChangeCount32 = *data++;
             remDataSize -= 2;
 
+	    overflow_add(ChangeCount16, ChangeCount32);
             changes = ChangeCount16 + ChangeCount32;
+	    overflow_add(changes, 1);
             for (i = 0; i < changes; ++i) {
                 if (totalchanges >= pchgP->TotalChanges) goto fail;
                 if (remDataSize < 2) goto fail;
@@ -2067,6 +2091,9 @@ read_pchg(FILE *     const ifP,
             cmap->mp_change[i] = NULL;
         if( PCHG.StartLine < 0 ) {
             int nch;
+            if(PCHG.MaxReg < PCHG.MinReg)
+                pm_error("assert: MinReg > MaxReg");
+            overflow_add(PCHG.MaxReg-PCHG.MinReg, 2);
             nch = PCHG.MaxReg - PCHG.MinReg +1;
             MALLOCARRAY_NOFAIL(cmap->mp_init, nch + 1);
             for( i = 0; i < nch; i++ )
@@ -2143,6 +2170,7 @@ process_body( FILE *          const ifP,
     if (typeid == ID_ILBM) {
         int isdeep;
 
+        overflow_add(bmhdP->w, 15);
         MALLOCARRAY_NOFAIL(ilbmrow, RowBytes(bmhdP->w));
         *viewportmodesP |= fakeviewport;      /* -isham/-isehb */
 
Index: netpbm-10.96.4/converter/ppm/imgtoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/imgtoppm.c	2021-12-13 13:11:54.844622398 +0100
+++ netpbm-10.96.4/converter/ppm/imgtoppm.c	2021-12-13 13:17:36.814714167 +0100
@@ -84,6 +84,7 @@ main(int argc, char ** argv) {
             len = atoi((char*) buf );
             if ( fread( buf, len, 1, ifp ) != 1 )
                 pm_error( "bad colormap buf" );
+            overflow2(cmaplen, 3);
             if ( cmaplen * 3 != len )
             {
                 pm_message(
@@ -105,6 +106,7 @@ main(int argc, char ** argv) {
                 pm_error( "bad pixel data header" );
             buf[8] = '\0';
             len = atoi((char*) buf );
+            overflow2(cols, rows);
             if ( len != cols * rows )
                 pm_message(
                     "pixel data length (%d) does not match image size (%d)",
Index: netpbm-10.96.4/converter/ppm/Makefile
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/Makefile	2021-12-13 13:11:54.188618373 +0100
+++ netpbm-10.96.4/converter/ppm/Makefile	2021-12-13 13:17:36.814714167 +0100
@@ -11,7 +11,7 @@ SUBDIRS = hpcdtoppm ppmtompeg
 
 PORTBINARIES =	411toppm eyuvtoppm gouldtoppm ilbmtoppm imgtoppm \
 		leaftoppm mtvtoppm neotoppm \
-		pcxtoppm pc1toppm pi1toppm picttoppm pjtoppm \
+		pcxtoppm pc1toppm pi1toppm pjtoppm \
 		ppmtoacad ppmtoapplevol ppmtoarbtxt ppmtoascii \
 		ppmtobmp ppmtoeyuv ppmtogif ppmtoicr ppmtoilbm \
 		ppmtoleaf ppmtolj ppmtomitsu ppmtoneo \
Index: netpbm-10.96.4/converter/ppm/pcxtoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/pcxtoppm.c	2021-12-13 13:11:54.856622471 +0100
+++ netpbm-10.96.4/converter/ppm/pcxtoppm.c	2021-12-13 13:17:36.814714167 +0100
@@ -409,6 +409,7 @@ pcx_planes_to_pixels(pixels, bitplanes,
     /*
      * clear the pixel buffer
      */
+    overflow2(bytesperline, 8);
     npixels = (bytesperline * 8) / bitsperpixel;
     p    = pixels;
     while (--npixels >= 0)
@@ -470,6 +471,7 @@ pcx_16col_to_ppm(FILE *       const ifP,
     }
 
     /*  BytesPerLine should be >= BitsPerPixel * cols / 8  */
+    overflow2(BytesPerLine, 8);
     rawcols = BytesPerLine * 8 / BitsPerPixel;
     if (headerCols > rawcols) {
         pm_message("warning - BytesPerLine = %d, "
Index: netpbm-10.96.4/converter/ppm/picttoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/picttoppm.c	2021-12-13 13:11:51.740603358 +0100
+++ netpbm-10.96.4/converter/ppm/picttoppm.c	2021-12-13 13:17:36.814714167 +0100
@@ -1,3 +1,5 @@
+#error "Unfixable. Don't ship me"
+
 /*
  * picttoppm.c -- convert a MacIntosh PICT file to PPM format.
  *
Index: netpbm-10.96.4/converter/ppm/pjtoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/pjtoppm.c	2021-12-13 13:11:54.832622323 +0100
+++ netpbm-10.96.4/converter/ppm/pjtoppm.c	2021-12-13 13:17:36.814714167 +0100
@@ -168,14 +168,20 @@ main(int argc, const char ** argv) {
                 case 'V':   /* send plane */
                 case 'W':   /* send last plane */
                     if (row >= rowsX || image == NULL) {
-                        if (row >= rowsX)
+                        if (row >= rowsX) {
+                            overflow_add(rows, 100);
                             rowsX += 100;
+                        }
                         if (image == NULL) {
-                            MALLOCARRAY(image, uintProduct(rowsX, planes));
-                            MALLOCARRAY(imlen, uintProduct(rowsX, planes));
+                           image = (unsigned char **)
+                                malloc3(rowsX , planes , sizeof(unsigned char *));
+                            imlen = (int *) malloc3(rowsX , planes,  sizeof(int));
                         } else {
-                            REALLOCARRAY(image, uintProduct(rowsX, planes));
-                            REALLOCARRAY(imlen, uintProduct(rowsX, planes));
+                            overflow2(rows,planes);
+                            image = (unsigned char **)
+                                realloc2(image, rowsX * planes,
+                                         sizeof(unsigned char *));
+                            imlen = (int *) realloc2(imlen, rowsX * planes, sizeof(int));
                         }
                     }
                     if (image == NULL || imlen == NULL)
@@ -263,8 +269,10 @@ main(int argc, const char ** argv) {
                      col += 2)
                     for (cmd = image[plane + row * planes][col],
                              val = image[plane + row * planes][col+1];
-                         cmd >= 0 && i < newcols; cmd--, i++)
+                         cmd >= 0 && i < newcols; cmd--, i++) {
                         buf[i] = val;
+                        overflow_add(i, 1);
+                    }
                 cols = MAX(cols, i);
                 free(image[plane + row * planes]);
                 /*
@@ -275,6 +283,7 @@ main(int argc, const char ** argv) {
                 image[plane + row * planes] = realloc(buf, i);
             }
         }
+        overflow2(cols, 8);
         cols *= 8;
     }
 
Index: netpbm-10.96.4/converter/ppm/ppmtoeyuv.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtoeyuv.c	2021-12-13 13:11:54.868622544 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtoeyuv.c	2021-12-13 13:17:36.814714167 +0100
@@ -114,6 +114,7 @@ create_multiplication_tables(const pixva
 
     int index;
 
+    overflow_add(maxval, 1);
     MALLOCARRAY_NOFAIL(mult299   , maxval+1);
     MALLOCARRAY_NOFAIL(mult587   , maxval+1);
     MALLOCARRAY_NOFAIL(mult114   , maxval+1);
Index: netpbm-10.96.4/converter/ppm/ppmtoilbm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtoilbm.c	2021-12-13 13:11:54.084617737 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtoilbm.c	2021-12-13 13:17:36.818714191 +0100
@@ -190,6 +190,7 @@ makeValTable(int const oldmaxval,
     unsigned int i;
     int * table;
 
+    overflow_add(oldmaxval, 1);
     MALLOCARRAY_NOFAIL(table, oldmaxval + 1);
     for (i = 0; i <= oldmaxval; ++i)
         table[i] = ROUNDDIV(i * newmaxval, oldmaxval);
@@ -1644,6 +1645,7 @@ ppmToRgb8(FILE * const ifP,
 
     maskmethod = 0;     /* no masking - RGB8 uses genlock bits */
     compmethod = 4;     /* RGB8 files are always compressed */
+    overflow2(cols, 4);
     MALLOCARRAY_NOFAIL(compr_row, cols * 4);
 
     if( maxval != 255 ) {
@@ -1735,6 +1737,7 @@ ppmToRgbn(FILE * const ifP,
 
     maskmethod = 0;     /* no masking - RGBN uses genlock bits */
     compmethod = 4;     /* RGBN files are always compressed */
+    overflow2(cols, 2);
     MALLOCARRAY_NOFAIL(compr_row, cols * 2);
 
     if( maxval != 15 ) {
@@ -2298,8 +2301,10 @@ main(int argc, char ** argv) {
         MALLOCARRAY_NOFAIL(coded_rowbuf, RowBytes(cols));
         for (i = 0; i < RowBytes(cols); ++i)
             coded_rowbuf[i] = 0;
-        if (DO_COMPRESS)
+        if (DO_COMPRESS) {
+            overflow_add(cols,15);
             pm_rlenc_allocoutbuf(&compr_rowbuf, RowBytes(cols), PM_RLE_PACKBITS);
+        }
     }
     
     switch (mode) {
Index: netpbm-10.96.4/converter/ppm/ppmtolj.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtolj.c	2021-12-13 13:11:54.844622398 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtolj.c	2021-12-13 13:17:36.818714191 +0100
@@ -182,6 +182,7 @@ int main(int argc, char *argv[]) {
     ppm_readppminit( ifp, &cols, &rows, &maxval, &format );
     pixelrow = ppm_allocrow( cols );
 
+    overflow2(cols, 6);
     obuf = (unsigned char *) pm_allocrow(cols * 3, sizeof(unsigned char));
     cbuf = (unsigned char *) pm_allocrow(cols * 6, sizeof(unsigned char));
     if (mode == C_TRANS_MODE_DELTA)
Index: netpbm-10.96.4/converter/ppm/ppmtomitsu.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtomitsu.c	2021-12-13 13:11:54.844622398 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtomitsu.c	2021-12-13 13:17:36.818714191 +0100
@@ -685,6 +685,8 @@ main(int argc, char * argv[]) {
         medias = MSize_User;
 
     if (dpi300) {
+        overflow2(medias.maxcols, 2);
+        overflow2(medias.maxrows, 2);
         medias.maxcols *= 2;
         medias.maxrows *= 2;
     }
Index: netpbm-10.96.4/converter/ppm/ppmtopcx.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtopcx.c	2021-12-13 13:11:51.720603235 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtopcx.c	2021-12-13 13:17:36.818714191 +0100
@@ -410,6 +410,9 @@ writeRaster16Color(FILE * const ofP,
 
     unsigned int row;
 
+    /* see bytesPerLine definition above */
+    overflow2(bitsPerPixel, cols);
+    overflow_add(bitsPerPixel * cols, 7);
     MALLOCARRAY_NOFAIL(indexRow, cols);
     MALLOCARRAY(planesrow, bytesPerLine);
 
Index: netpbm-10.96.4/converter/ppm/ppmtopict.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtopict.c	2021-12-13 13:11:54.836622349 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtopict.c	2021-12-13 13:17:36.818714191 +0100
@@ -450,6 +450,8 @@ main(int argc, const char ** argv) {
     putShort(stdout, 0);            /* mode */
 
     /* Finally, write out the data. */
+    overflow_add(cols/MAX_COUNT, 1);
+    overflow_add(cols, cols/MAX_COUNT+1);
     outBuf = malloc((unsigned)(cols+cols/MAX_COUNT+1));
     for (row = 0, oc = 0; row < rows; ++row) {
         unsigned int rowSize;
Index: netpbm-10.96.4/converter/ppm/ppmtopj.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtopj.c	2021-12-13 13:11:54.860622495 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtopj.c	2021-12-13 13:17:36.818714191 +0100
@@ -179,6 +179,7 @@ char *argv[];
 	pixels = ppm_readppm( ifp, &cols, &rows, &maxval );
 
 	pm_close( ifp );
+	overflow2(cols,2);
 	obuf = (unsigned char *) pm_allocrow(cols, sizeof(unsigned char));
 	cbuf = (unsigned char *) pm_allocrow(cols * 2, sizeof(unsigned char));
 
Index: netpbm-10.96.4/converter/ppm/ppmtopjxl.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtopjxl.c	2021-12-13 13:11:54.836622349 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtopjxl.c	2021-12-13 13:17:36.818714191 +0100
@@ -266,6 +266,8 @@ main(int argc, const char * argv[]) {
         pm_error("image too large; reduce with ppmscale");
     if (maxval > PCL_MAXVAL)
         pm_error("color range too large; reduce with ppmcscale");
+    if (cols < 0 || rows < 0)
+        pm_error("negative size is not possible");
 
     /* Figure out the colormap. */
     pm_message("Computing colormap...");
@@ -286,6 +288,8 @@ main(int argc, const char * argv[]) {
         case 0: /* direct mode (no palette) */
             bpp = bitsperpixel(maxval); /* bits per pixel */
             bpg = bpp; bpb = bpp;
+	    overflow2(bpp, 3);
+	    overflow_add(bpp*3, 7);
             bpp = (bpp*3+7)>>3;     /* bytes per pixel now */
             bpr = (bpp<<3)-bpg-bpb; 
             bpp *= cols;            /* bytes per row now */
@@ -295,9 +299,13 @@ main(int argc, const char * argv[]) {
         case 3: case 7: pclindex++;
         default:
             bpp = 8/pclindex;
+	    overflow_add(cols, bpp);
+	    if(bpp == 0)
+		pm_error("assert: no bpp");
             bpp = (cols+bpp-1)/bpp;      /* bytes per row */
         }
     }
+    overflow2(bpp,2);
     inrow = (char *)malloc((unsigned)bpp);
     outrow = (char *)malloc((unsigned)bpp*2);
     runcnt = (signed char *)malloc((unsigned)bpp);
Index: netpbm-10.96.4/converter/ppm/ppmtowinicon.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtowinicon.c	2021-12-13 13:11:54.836622349 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtowinicon.c	2021-12-13 13:17:36.818714191 +0100
@@ -12,6 +12,7 @@
 
 #include <math.h>
 #include <string.h>
+#include <stdlib.h>
 
 #include "pm_c_util.h"
 #include "winico.h"
@@ -214,6 +215,7 @@ createAndBitmap (gray ** const ba, int c
    MALLOCARRAY_NOFAIL(rowData, rows);
    icBitmap->xBytes = xBytes;
    icBitmap->data   = rowData;
+   overflow2(xBytes, rows);
    icBitmap->size   = xBytes * rows;
    for (y=0;y<rows;y++) {
       u1 * row;
@@ -342,6 +344,7 @@ create4Bitmap (pixel ** const pa, int co
    MALLOCARRAY_NOFAIL(rowData, rows);
    icBitmap->xBytes = xBytes;
    icBitmap->data   = rowData;
+   overflow2(xBytes, rows);
    icBitmap->size   = xBytes * rows;
 
    for (y=0;y<rows;y++) {
@@ -402,6 +405,7 @@ create8Bitmap (pixel ** const pa, int co
    MALLOCARRAY_NOFAIL(rowData, rows);
    icBitmap->xBytes = xBytes;
    icBitmap->data   = rowData;
+   overflow2(xBytes, rows);
    icBitmap->size   = xBytes * rows;
 
    for (y=0;y<rows;y++) {
@@ -709,6 +713,10 @@ addEntryToIcon(MS_Ico       const MSIcon
     entry->bitcount      = bpp;
     entry->ih            = createInfoHeader(entry, xorBitmap, andBitmap);
     entry->colors        = palette->colors;
+    overflow2(4, entry->color_count);
+    overflow_add(xorBitmap->size, andBitmap->size);
+    overflow_add(xorBitmap->size + andBitmap->size, 40);
+    overflow_add(xorBitmap->size + andBitmap->size + 40, 4 * entry->color_count);
     entry->size_in_bytes = 
         xorBitmap->size + andBitmap->size + 40 + (4 * entry->color_count);
     if (verbose) 
Index: netpbm-10.96.4/converter/ppm/ppmtoxpm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ppmtoxpm.c	2021-12-13 13:11:54.836622349 +0100
+++ netpbm-10.96.4/converter/ppm/ppmtoxpm.c	2021-12-13 13:17:36.818714191 +0100
@@ -198,6 +198,7 @@ genNumstr(unsigned int const input, int
     unsigned int i;
 
     /* Allocate memory for printed number.  Abort if error. */
+    overflow_add(digits, 1);
     if (!(str = (char *) malloc(digits + 1)))
         pm_error("out of memory");
 
@@ -315,6 +316,7 @@ genCmap(colorhist_vector const chv,
     unsigned int charsPerPixel;
     unsigned int xpmMaxval;
     
+    if (includeTransparent) overflow_add(ncolors, 1);
     MALLOCARRAY(cmap, cmapSize);
     if (cmapP == NULL)
         pm_error("Out of memory allocating %u bytes for a color map.",
Index: netpbm-10.96.4/converter/ppm/qrttoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/qrttoppm.c	2021-12-13 13:11:54.840622372 +0100
+++ netpbm-10.96.4/converter/ppm/qrttoppm.c	2021-12-13 13:17:36.818714191 +0100
@@ -46,7 +46,7 @@ main( argc, argv )
 
     ppm_writeppminit( stdout, cols, rows, maxval, 0 );
     pixelrow = ppm_allocrow( cols );
-    buf = (unsigned char *) malloc( 3 * cols );
+    buf = (unsigned char *) malloc2( 3 , cols );
     if ( buf == (unsigned char *) 0 )
 	pm_error( "out of memory" );
 
Index: netpbm-10.96.4/converter/ppm/sldtoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/sldtoppm.c	2021-12-13 13:11:54.084617737 +0100
+++ netpbm-10.96.4/converter/ppm/sldtoppm.c	2021-12-13 13:17:36.818714191 +0100
@@ -506,6 +506,8 @@ slider(slvecfn   slvec,
 
     /* Allocate image buffer and clear it to black. */
 
+    overflow_add(ixdots,1);
+    overflow_add(iydots,1);
     pixels = ppm_allocarray(pixcols = ixdots + 1, pixrows = iydots + 1);
     PPM_ASSIGN(rgbcolor, 0, 0, 0);
     ppmd_filledrectangle(pixels, pixcols, pixrows, pixmaxval, 0, 0,
Index: netpbm-10.96.4/converter/ppm/ximtoppm.c
===================================================================
--- netpbm-10.96.4.orig/converter/ppm/ximtoppm.c	2021-12-13 13:11:51.712603186 +0100
+++ netpbm-10.96.4/converter/ppm/ximtoppm.c	2021-12-13 13:17:36.818714191 +0100
@@ -147,6 +147,7 @@ ReadXimHeader(FILE *     const in_fp,
     if (header->nchannels == 3 && header->bits_channel == 8)
         header->ncolors = 0;
     else if (header->nchannels == 1 && header->bits_channel == 8) {
+	overflow2(header->ncolors, sizeof(Color));
         header->colors = (Color *)calloc((unsigned int)header->ncolors,
                 sizeof(Color));
         if (header->colors == NULL) {
Index: netpbm-10.96.4/editor/pamcut.c
===================================================================
--- netpbm-10.96.4.orig/editor/pamcut.c	2021-12-13 13:11:54.872622569 +0100
+++ netpbm-10.96.4/editor/pamcut.c	2021-12-13 13:17:36.818714191 +0100
@@ -799,6 +799,8 @@ cutOneImage(FILE *             const ifP
 
     outpam = inpam;    /* Initial value -- most fields should be same */
     outpam.file   = ofP;
+    overflow_add(rightcol, 1);
+    overflow_add(bottomrow, 1);
     outpam.width  = rightcol - leftcol + 1;
     outpam.height = bottomrow - toprow + 1;
 
Index: netpbm-10.96.4/editor/pbmreduce.c
===================================================================
--- netpbm-10.96.4.orig/editor/pbmreduce.c	2021-12-13 13:11:55.072623795 +0100
+++ netpbm-10.96.4/editor/pbmreduce.c	2021-12-13 13:17:36.818714191 +0100
@@ -153,6 +153,7 @@ initializeFloydSteinberg(struct FS  * co
     unsigned int col;
     struct pm_randSt randSt;
 
+    overflow_add(newcols, 2);
     MALLOCARRAY(fsP->thiserr, newcols + 2);
     MALLOCARRAY(fsP->nexterr, newcols + 2);
 
Index: netpbm-10.96.4/editor/pnmgamma.c
===================================================================
--- netpbm-10.96.4.orig/editor/pnmgamma.c	2021-12-13 13:11:56.088630025 +0100
+++ netpbm-10.96.4/editor/pnmgamma.c	2021-12-13 13:17:36.818714191 +0100
@@ -596,6 +596,7 @@ createGammaTables(enum transferFunction
                   xelval **             const btableP) {
 
     /* Allocate space for the tables. */
+    overflow_add(maxval, 1);
     MALLOCARRAY(*rtableP, maxval+1);
     MALLOCARRAY(*gtableP, maxval+1);
     MALLOCARRAY(*btableP, maxval+1);
Index: netpbm-10.96.4/editor/pnmhisteq.c
===================================================================
--- netpbm-10.96.4.orig/editor/pnmhisteq.c	2021-12-13 13:11:56.096630074 +0100
+++ netpbm-10.96.4/editor/pnmhisteq.c	2021-12-13 13:17:36.818714191 +0100
@@ -107,6 +107,7 @@ computeLuminosityHistogram(xel * const *
     unsigned int pixelCount;
     unsigned int * lumahist;
 
+    overflow_add(maxval, 1);
     MALLOCARRAY(lumahist, maxval + 1);
     if (lumahist == NULL)
         pm_error("Out of storage allocating array for %u histogram elements",
Index: netpbm-10.96.4/editor/pnmindex.csh
===================================================================
--- netpbm-10.96.4.orig/editor/pnmindex.csh	2021-12-13 13:17:36.802714093 +0100
+++ netpbm-10.96.4/editor/pnmindex.csh	2021-12-13 13:17:36.818714191 +0100
@@ -1,5 +1,8 @@
 #!/bin/csh -f
 #
+echo "Unsafe code, needs debugging, do not ship"
+exit 1
+#
 # pnmindex - build a visual index of a bunch of anymaps
 #
 # Copyright (C) 1991 by Jef Poskanzer.
Index: netpbm-10.96.4/editor/pnmpad.c
===================================================================
--- netpbm-10.96.4.orig/editor/pnmpad.c	2021-12-13 13:11:55.072623795 +0100
+++ netpbm-10.96.4/editor/pnmpad.c	2021-12-13 13:17:36.818714191 +0100
@@ -654,6 +654,8 @@ main(int argc, const char ** argv) {
 
     computePadSizes(cmdline, cols, rows, &lpad, &rpad, &tpad, &bpad);
 
+    overflow_add(cols, lpad);
+    overflow_add(cols + lpad, rpad);
     newcols = cols + lpad + rpad;
 
     if (cmdline.reportonly)
Index: netpbm-10.96.4/editor/pnmremap.c
===================================================================
--- netpbm-10.96.4.orig/editor/pnmremap.c	2021-12-13 13:11:55.076623820 +0100
+++ netpbm-10.96.4/editor/pnmremap.c	2021-12-13 13:17:36.818714191 +0100
@@ -469,7 +469,7 @@ fserr_init(struct pam *   const pamP,
     unsigned int plane;
 
     unsigned int const fserrSize = pamP->width + 2;
-
+    overflow_add(pamP->width, 2);
     fserrP->width = pamP->width;
 
     MALLOCARRAY(fserrP->thiserr, pamP->depth);
@@ -508,6 +508,7 @@ floydInitRow(struct pam *   const pamP,
 
     unsigned int col;
 
+    overflow_add(pamP->width, 2);
     for (col = 0; col < pamP->width + 2; ++col) {
         unsigned int plane;
         for (plane = 0; plane < pamP->depth; ++plane)
Index: netpbm-10.96.4/editor/pnmscalefixed.c
===================================================================
--- netpbm-10.96.4.orig/editor/pnmscalefixed.c	2021-12-13 13:11:56.108630148 +0100
+++ netpbm-10.96.4/editor/pnmscalefixed.c	2021-12-13 13:17:36.818714191 +0100
@@ -214,6 +214,8 @@ compute_output_dimensions(const struct c
                           const int rows, const int cols,
                           int * newrowsP, int * newcolsP) {
 
+    overflow2(rows, cols);
+
     if (cmdline.pixels) {
         if (rows * cols <= cmdline.pixels) {
             *newrowsP = rows;
@@ -265,6 +267,8 @@ compute_output_dimensions(const struct c
 
     if (*newcolsP < 1) *newcolsP = 1;
     if (*newrowsP < 1) *newrowsP = 1;
+
+    overflow2(*newcolsP, *newrowsP);
 }        
 
 
@@ -446,6 +450,9 @@ main(int argc, char **argv ) {
        unfilled.  We can address that by stretching, whereas the other
        case would require throwing away some of the input.
     */
+
+    overflow2(newcols, SCALE);
+    overflow2(newrows, SCALE);
     sxscale = SCALE * newcols / cols;
     syscale = SCALE * newrows / rows;
 
Index: netpbm-10.96.4/editor/pnmshear.c
===================================================================
--- netpbm-10.96.4.orig/editor/pnmshear.c	2021-12-13 13:11:56.088630025 +0100
+++ netpbm-10.96.4/editor/pnmshear.c	2021-12-13 13:17:36.818714191 +0100
@@ -15,6 +15,7 @@
 #include <assert.h>
 #include <math.h>
 #include <string.h>
+#include <limits.h>
 
 #include "pm_c_util.h"
 #include "mallocvar.h"
@@ -235,6 +236,11 @@ main(int argc, const char * argv[]) {
 
     shearfac = tan(cmdline.angle);
 
+    if(rows * shearfac >= INT_MAX-1)
+      pm_error("image too large");
+
+    overflow_add(rows * shearfac, cols+1);
+
     newcolsD = (double) rows * fabs(shearfac) + cols + 0.999999;
     if (newcolsD > INT_MAX-2)
         pm_error("angle is too close to +/-90 degrees; "
Index: netpbm-10.96.4/editor/ppmdither.c
===================================================================
--- netpbm-10.96.4.orig/editor/ppmdither.c	2021-12-13 13:11:56.484632454 +0100
+++ netpbm-10.96.4/editor/ppmdither.c	2021-12-13 13:17:36.818714191 +0100
@@ -355,7 +355,11 @@ dithMatrix(unsigned int const dithPower)
         unsigned int const dithMatSize = 
             (dithDim * sizeof(*dithMat)) + /* pointers */
             (dithDim * dithDim * sizeof(**dithMat)); /* data */
-        
+
+        overflow2(dithDim, sizeof(*dithMat));
+        overflow3(dithDim, dithDim, sizeof(**dithMat));
+        overflow_add(dithDim * sizeof(*dithMat), dithDim * dithDim * sizeof(**dithMat));
+
         dithMat = malloc(dithMatSize);
         
         if (dithMat == NULL) 
Index: netpbm-10.96.4/editor/specialty/pamoil.c
===================================================================
--- netpbm-10.96.4.orig/editor/specialty/pamoil.c	2021-12-13 13:11:56.084630000 +0100
+++ netpbm-10.96.4/editor/specialty/pamoil.c	2021-12-13 13:17:36.818714191 +0100
@@ -112,6 +112,7 @@ main(int argc, char *argv[] ) {
     tuples = pnm_readpam(ifp, &inpam, PAM_STRUCT_SIZE(tuple_type));
     pm_close(ifp);
 
+    overflow_add(inpam.maxval, 1);
     MALLOCARRAY(hist, inpam.maxval + 1);
     if (hist == NULL)
         pm_error("Unable to allocate memory for histogram.");
Index: netpbm-10.96.4/generator/pbmtext.c
===================================================================
--- netpbm-10.96.4.orig/generator/pbmtext.c	2021-12-13 13:11:57.516638781 +0100
+++ netpbm-10.96.4/generator/pbmtext.c	2021-12-13 13:17:36.818714191 +0100
@@ -1144,6 +1144,7 @@ getText(PM_WCHAR             const cmdli
                             "Cannot process",
                             lineCount, (unsigned int) MAXLINECHARS);
                     if (lineCount >= maxlines) {
+                        overflow2(maxlines, 2);
                         maxlines *= 2;
                         REALLOCARRAY(textArray, maxlines);
                         if (textArray == NULL)
@@ -1184,6 +1185,7 @@ computeMargins(struct CmdlineInfo const
             *hmarginP = fontP->maxwidth;
         } else {
             *vmarginP = fontP->maxheight;
+            overflow2(2, fontP->maxwidth);
             *hmarginP = 2 * fontP->maxwidth;
         }
     }
Index: netpbm-10.96.4/generator/pgmkernel.c
===================================================================
--- netpbm-10.96.4.orig/generator/pgmkernel.c	2021-12-13 13:11:57.824640671 +0100
+++ netpbm-10.96.4/generator/pgmkernel.c	2021-12-13 13:17:36.818714191 +0100
@@ -214,6 +214,7 @@ main(int argc, const char * argv[]) {
 
     /* Output matrix is symmetric vertically and horizontally. */
 
+    overflow_add(cmdline.rows, 1);
     arows = (cmdline.rows + 1) / 2;
         /* Half the number of rows.  Add 1 if odd. */
     halfKernel = pgm_allocarray(cmdline.cols, arows);
Index: netpbm-10.96.4/lib/libpammap.c
===================================================================
--- netpbm-10.96.4.orig/lib/libpammap.c	2021-12-13 13:11:56.500632552 +0100
+++ netpbm-10.96.4/lib/libpammap.c	2021-12-13 13:17:36.822714216 +0100
@@ -108,6 +108,8 @@ allocTupleIntListItem(struct pam * const
     */
     struct tupleint_list_item * retval;
 
+    overflow2(pamP->depth, sizeof(sample));
+    overflow_add(sizeof(*retval)-sizeof(retval->tupleint.tuple), pamP->depth*sizeof(sample));
     unsigned int const size =
         sizeof(*retval) - sizeof(retval->tupleint.tuple)
         + pamP->depth * sizeof(sample);
Index: netpbm-10.96.4/lib/libpbm1.c
===================================================================
--- netpbm-10.96.4.orig/lib/libpbm1.c	2021-12-13 13:11:57.504638709 +0100
+++ netpbm-10.96.4/lib/libpbm1.c	2021-12-13 13:17:36.822714216 +0100
@@ -79,6 +79,7 @@ pbm_check(FILE *               const fil
     } else {        
         pm_filepos const bytesPerRow    = (cols+7)/8;
         pm_filepos const needRasterSize = rows * bytesPerRow;
+        overflow2(bytesPerRow, rows);
         pm_check(fileP, checkType, needRasterSize, retvalP);
     }
 }
Index: netpbm-10.96.4/lib/libpm.c
===================================================================
--- netpbm-10.96.4.orig/lib/libpm.c	2021-12-13 13:11:56.496632527 +0100
+++ netpbm-10.96.4/lib/libpm.c	2021-12-13 13:17:36.822714216 +0100
@@ -889,4 +889,53 @@ pm_parse_height(const char * const arg)
 }
 
 
+/*
+ *	Maths wrapping
+ */
+
+void __overflow2(int a, int b)
+{
+	if(a < 0 || b < 0)
+		pm_error("object too large");
+	if(b == 0)
+		return;
+	if(a > INT_MAX / b)
+		pm_error("object too large");
+}
+
+void overflow3(int a, int b, int c)
+{
+	overflow2(a,b);
+	overflow2(a*b, c);
+}
+
+void overflow_add(int a, int b)
+{
+	if( a > INT_MAX - b)
+		pm_error("object too large");
+}
+
+void *malloc2(int a, int b)
+{
+	overflow2(a, b);
+	if(a*b == 0)
+		pm_error("Zero byte allocation");
+	return malloc(a*b);
+}
+
+void *malloc3(int a, int b, int c)
+{
+	overflow3(a, b, c);
+	if(a*b*c == 0)
+		pm_error("Zero byte allocation");
+	return malloc(a*b*c);
+}
+
+void *realloc2(void * a, int b, int c)
+{
+	overflow2(b, c);
+	if(b*c == 0)
+		pm_error("Zero byte allocation");
+	return realloc(a, b*c);
+}
 
Index: netpbm-10.96.4/lib/pm.h
===================================================================
--- netpbm-10.96.4.orig/lib/pm.h	2021-12-13 13:11:56.508632602 +0100
+++ netpbm-10.96.4/lib/pm.h	2021-12-13 13:17:36.822714216 +0100
@@ -442,4 +442,11 @@ pm_parse_height(const char * const arg);
 #endif
 
 
+void *malloc2(int, int);
+void *malloc3(int, int, int);
+#define overflow2(a,b) __overflow2(a,b)
+void __overflow2(int, int);
+void overflow3(int, int, int);
+void overflow_add(int, int);
+
 #endif
Index: netpbm-10.96.4/other/pnmcolormap.c
===================================================================
--- netpbm-10.96.4.orig/other/pnmcolormap.c	2021-12-13 13:12:01.568663631 +0100
+++ netpbm-10.96.4/other/pnmcolormap.c	2021-12-13 13:17:36.822714216 +0100
@@ -1002,6 +1002,7 @@ colormapToSquare(struct pam * const pamP
             pamP->width = intsqrt;
         else
             pamP->width = intsqrt + 1;
+            overflow_add(intsqrt, 1);
     }
     {
         unsigned int const intQuotient = colormap.size / pamP->width;
Index: netpbm-10.96.4/urt/README
===================================================================
--- netpbm-10.96.4.orig/urt/README	2021-12-13 13:12:01.848665347 +0100
+++ netpbm-10.96.4/urt/README	2021-12-13 13:17:36.822714216 +0100
@@ -18,3 +18,8 @@ in its initializer in the original.  But
 defines stdout as a variable, so that wouldn't compile.  So I changed
 it to NULL and added a line to rle_hdr_init to set that field to
 'stdout' dynamically.  2000.06.02 BJH.
+
+Redid the code to check for maths overflows and other crawly horrors.
+Removed pipe through and compress support (unsafe)
+
+Alan Cox <alan@redhat.com>
Index: netpbm-10.96.4/urt/rle_addhist.c
===================================================================
--- netpbm-10.96.4.orig/urt/rle_addhist.c	2021-12-13 13:12:01.848665347 +0100
+++ netpbm-10.96.4/urt/rle_addhist.c	2021-12-13 13:17:36.822714216 +0100
@@ -14,6 +14,8 @@
  * If you modify this software, you should include a notice giving the
  * name of the person performing the modification, the date of modification,
  * and the reason for such modification.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 /* 
  * rle_addhist.c - Add to the HISTORY comment in header
@@ -70,13 +72,19 @@ rle_addhist(char *          argv[],
         return;
     
     length = 0;
-    for (i = 0; argv[i]; ++i)
+    for (i = 0; argv[i]; ++i) {
+	overflow_add(length, strlen(argv[i]));
+	overflow_add(length+1, strlen(argv[i]));
         length += strlen(argv[i]) +1;   /* length of each arg plus space. */
+    }
 
     time(&temp);
     timedate = ctime(&temp);
     length += strlen(timedate);        /* length of date and time in ASCII. */
 
+    overflow_add(strlen(padding), 4);
+    overflow_add(strlen(histoire), strlen(padding) + 4);
+    overflow_add(length, strlen(histoire) + strlen(padding) + 4);
     length += strlen(padding) + 3 + strlen(histoire) + 1;
         /* length of padding, "on "  and length of history name plus "="*/
     if (in_hdr) /* if we are interested in the old comments... */
@@ -84,9 +92,12 @@ rle_addhist(char *          argv[],
     else
         old = NULL;
     
-    if (old && *old)
+    if (old && *old) {
+	overflow_add(length, strlen(old));
         length += strlen(old);       /* add length if there. */
+    }
 
+    overflow_add(length, 1);
     ++length;                               /*Cater for the null. */
 
     MALLOCARRAY(newc, length);
Index: netpbm-10.96.4/urt/rle_getrow.c
===================================================================
--- netpbm-10.96.4.orig/urt/rle_getrow.c	2021-12-13 13:12:01.556663557 +0100
+++ netpbm-10.96.4/urt/rle_getrow.c	2021-12-13 13:17:36.822714216 +0100
@@ -17,6 +17,8 @@
  *
  *  Modified at BRL 16-May-88 by Mike Muuss to avoid Alliant STDC desire
  *  to have all "void" functions so declared.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 /* 
  * rle_getrow.c - Read an RLE file in.
@@ -164,6 +166,7 @@ rle_get_setup(rle_hdr * const the_hdr) {
         char * cp;
 
         VAXSHORT(comlen, infile); /* get comment length */
+        overflow_add(comlen, 1);
         evenlen = (comlen + 1) & ~1;    /* make it even */
         if (evenlen) {
             MALLOCARRAY(comment_buf, evenlen);
Index: netpbm-10.96.4/urt/rle_hdr.c
===================================================================
--- netpbm-10.96.4.orig/urt/rle_hdr.c	2021-12-13 13:12:01.848665347 +0100
+++ netpbm-10.96.4/urt/rle_hdr.c	2021-12-13 13:17:36.822714216 +0100
@@ -14,6 +14,8 @@
  * If you modify this software, you should include a notice giving the
  * name of the person performing the modification, the date of modification,
  * and the reason for such modification.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 /*
  * rle_hdr.c - Functions to manipulate rle_hdr structures.
@@ -148,7 +150,7 @@ rle_hdr_cp(rle_hdr * const fromHdrP,
     if (toHdrP->cmap) {
         size_t const size =
             toHdrP->ncmap * (1 << toHdrP->cmaplen) * sizeof(rle_map);
-        toHdrP->cmap = malloc(size);
+        toHdrP->cmap = (rle_map *)malloc3( toHdrP->ncmap, 1<<toHdrP->cmaplen, sizeof(rle_map));
         if (!toHdrP->cmap)
             pm_error("Failed to allocate memory for %u color maps "
                      "of length %u", toHdrP->ncmap, 1 << toHdrP->cmaplen);
@@ -164,11 +166,16 @@ rle_hdr_cp(rle_hdr * const fromHdrP,
 
         /* Count the comments. */
         for (cp = toHdrP->comments, size = 0; *cp; ++cp)
+        {
+            overflow_add(size, 1);
             ++size;
+        }
 
         /* Check if there are really any comments. */
         if (size > 0) {
+            overflow_add(size, 1);
             ++size;     /* Copy the NULL pointer, too. */
+            overflow2(size, sizeof(char *));
             size *= sizeof(char *);
             toHdrP->comments = malloc(size);
             if (!toHdrP->comments)
Index: netpbm-10.96.4/urt/rle.h
===================================================================
--- netpbm-10.96.4.orig/urt/rle.h	2021-12-13 13:12:01.856665397 +0100
+++ netpbm-10.96.4/urt/rle.h	2021-12-13 13:17:36.822714216 +0100
@@ -14,6 +14,9 @@
  * If you modify this software, you should include a notice giving the
  * name of the person performing the modification, the date of modification,
  * and the reason for such modification.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
+ *  Header declarations needed
  */
 /*
  * rle.h - Global declarations for Utah Raster Toolkit RLE programs.
@@ -152,6 +155,17 @@ rle_hdr             /* End of typedef. *
  */
 extern rle_hdr rle_dflt_hdr;
 
+/*
+ * Provided by pm library
+ */
+
+extern void overflow_add(int, int);
+#define overflow2(a,b) __overflow2(a,b)
+extern void __overflow2(int, int);
+extern void overflow3(int, int, int);
+extern void *malloc2(int, int);
+extern void *malloc3(int, int, int);
+extern void *realloc2(void *, int, int);
 
 /* Declare RLE library routines. */
 
Index: netpbm-10.96.4/urt/rle_open_f.c
===================================================================
--- netpbm-10.96.4.orig/urt/rle_open_f.c	2021-12-13 13:12:01.388662528 +0100
+++ netpbm-10.96.4/urt/rle_open_f.c	2021-12-13 13:17:36.822714216 +0100
@@ -163,65 +163,7 @@ dealWithSubprocess(const char *  const f
                    FILE **       const fpP,
                    bool *        const noSubprocessP,
                    const char ** const errorP) {
-
-#ifdef NO_OPEN_PIPES
     *noSubprocessP = TRUE;
-#else
-    const char *cp;
-
-    reapChildren(catchingChildrenP, pids);
-
-    /*  Real file, not stdin or stdout.  If name ends in ".Z",
-     *  pipe from/to un/compress (depending on r/w mode).
-     *
-     *  If it starts with "|", popen that command.
-     */
-
-    cp = file_name + strlen(file_name) - 2;
-    /* Pipe case. */
-    if (file_name[0] == '|') {
-        pid_t thepid;     /* PID from my_popen */
-
-        *noSubprocessP = FALSE;
-
-        *fpP = my_popen(file_name + 1, mode, &thepid);
-        if (*fpP == NULL)
-            *errorP = "%s: can't invoke <<%s>> for %s: ";
-        else {
-            /* One more child to catch, eventually. */
-            if (*catchingChildrenP < MAX_CHILDREN)
-                pids[(*catchingChildrenP)++] = thepid;
-        }
-    } else if (cp > file_name && *cp == '.' && *(cp + 1) == 'Z' ) {
-        /* Compress case. */
-        pid_t thepid;     /* PID from my_popen. */
-        const char * command;
-
-        *noSubprocessP = FALSE;
-
-        if (*mode == 'w')
-            pm_asprintf(&command, "compress > %s", file_name);
-        else if (*mode == 'a')
-            pm_asprintf(&command, "compress >> %s", file_name);
-        else
-            pm_asprintf(&command, "compress -d < %s", file_name);
-
-        *fpP = my_popen(command, mode, &thepid);
-
-        if (*fpP == NULL)
-            *errorP = "%s: can't invoke 'compress' program, "
-                "trying to open %s for %s";
-        else {
-            /* One more child to catch, eventually. */
-            if (*catchingChildrenP < MAX_CHILDREN)
-                pids[(*catchingChildrenP)++] = thepid;
-        }
-        pm_strfree(command);
-    } else {
-        *noSubprocessP = TRUE;
-        *errorP = NULL;
-    }
-#endif
 }
 
 
Index: netpbm-10.96.4/urt/rle_putcom.c
===================================================================
--- netpbm-10.96.4.orig/urt/rle_putcom.c	2021-12-13 13:12:01.852665372 +0100
+++ netpbm-10.96.4/urt/rle_putcom.c	2021-12-13 13:17:36.822714216 +0100
@@ -14,6 +14,8 @@
  * If you modify this software, you should include a notice giving the
  * name of the person performing the modification, the date of modification,
  * and the reason for such modification.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 /* 
  * rle_putcom.c - Add a picture comment to the header struct.
@@ -98,12 +100,14 @@ rle_putcom(const char * const value,
         const char * v;
         const char ** old_comments;
         int i;
-        for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp)
+        for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp) {
+	    overflow_add(i, 1);
             if (match(value, *cp) != NULL) {
                 v = *cp;
                 *cp = value;
                 return v;
             }
+	}
         /* Not found */
         /* Can't realloc because somebody else might be pointing to this
          * comments block.  Of course, if this were true, then the
Index: netpbm-10.96.4/urt/Runput.c
===================================================================
--- netpbm-10.96.4.orig/urt/Runput.c	2021-12-13 13:12:01.852665372 +0100
+++ netpbm-10.96.4/urt/Runput.c	2021-12-13 13:17:36.822714216 +0100
@@ -17,6 +17,8 @@
  *
  *  Modified at BRL 16-May-88 by Mike Muuss to avoid Alliant STDC desire
  *  to have all "void" functions so declared.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 /* 
  * Runput.c - General purpose Run Length Encoding.
@@ -202,9 +204,11 @@ RunSetup(rle_hdr * the_hdr)
     if ( the_hdr->background != 0 )
     {
 	register int i;
-	register rle_pixel *background =
-	    (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) );
+	register rle_pixel *background;
 	register int *bg_color;
+
+	overflow_add(the_hdr->ncolors,1);
+	background = (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) );
 	/* 
 	 * If even number of bg color bytes, put out one more to get to 
 	 * 16 bit boundary.
@@ -224,7 +228,7 @@ RunSetup(rle_hdr * the_hdr)
 	/* Big-endian machines are harder */
 	register int i, nmap = (1 << the_hdr->cmaplen) *
 			       the_hdr->ncmap;
-	register char *h_cmap = (char *)malloc( nmap * 2 );
+	register char *h_cmap = (char *)malloc2( nmap, 2 );
 	if ( h_cmap == NULL )
 	{
 	    fprintf( stderr,
Index: netpbm-10.96.4/urt/scanargs.c
===================================================================
--- netpbm-10.96.4.orig/urt/scanargs.c	2021-12-13 13:12:01.852665372 +0100
+++ netpbm-10.96.4/urt/scanargs.c	2021-12-13 13:17:36.822714216 +0100
@@ -38,6 +38,8 @@
  *
  *  Modified at BRL 16-May-88 by Mike Muuss to avoid Alliant STDC desire
  *  to have all "void" functions so declared.
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
  */
 
 #include <stdio.h>
@@ -62,8 +64,8 @@ typedef int *ptr;
 /*
  * Storage allocation macros
  */
-#define NEW( type, cnt )        (type *) malloc( (cnt) * sizeof( type ) )
-#define RENEW( type, ptr, cnt ) (type *) realloc( ptr, (cnt) * sizeof( type ) )
+#define NEW( type, cnt )        (type *) malloc2( (cnt) , sizeof( type ) )
+#define RENEW( type, ptr, cnt ) (type *) realloc2( ptr, (cnt), sizeof( type ) )
 
 static CONST_DECL char * prformat( CONST_DECL char *, int );
 static int isnum( CONST_DECL char *, int, int );
Index: netpbm-10.96.4/lib/libpam.c
===================================================================
--- netpbm-10.96.4.orig/lib/libpam.c	2021-12-13 13:11:56.116630197 +0100
+++ netpbm-10.96.4/lib/libpam.c	2021-12-13 13:17:36.822714216 +0100
@@ -225,7 +225,8 @@ allocPamRow(const struct pam * const pam
     unsigned int const bytesPerTuple = allocationDepth(pamP) * sizeof(sample);
     tuple * tuplerow;
 
-    tuplerow = malloc(pamP->width * (sizeof(tuple *) + bytesPerTuple));
+    overflow_add(sizeof(tuple *), bytesPerTuple);
+    tuplerow = malloc2(pamP->width, (sizeof(tuple *) + bytesPerTuple));
 
     if (tuplerow != NULL) {
         /* Now we initialize the pointers to the individual tuples