File netpbm-security.patch of Package netpbm

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File netpbm-security.patch of Package netpbm (Revision 09c163631bea9d31c186066fc2f5455c)

Currently displaying revision 09c163631bea9d31c186066fc2f5455c , Show latest

--- netpbm-10.35.64/analyzer/pgmhist.c
+++ netpbm-10.35.64/analyzer/pgmhist.c
@@ -53,6 +53,7 @@
     grayrow = pgm_allocrow( cols );
 
     /* Build histogram. */
+    overflow_add(maxval, 1);
     MALLOCARRAY(hist, maxval + 1);
     MALLOCARRAY(rcount, maxval + 1);
     if ( hist == NULL || rcount == NULL )
--- netpbm-10.35.64/analyzer/pgmtexture.c
+++ netpbm-10.35.64/analyzer/pgmtexture.c
@@ -79,6 +79,9 @@
 {
     float *v;
 
+    if(nh < nl)
+	pm_error("assert: h < l");
+    overflow_add(nh - nl, 1);
     MALLOCARRAY(v, (unsigned) (nh - nl + 1));
     if (v == NULL)
         pm_error("Unable to allocate memory for a vector.");
@@ -95,6 +98,9 @@
     float **m;
 
     /* allocate pointers to rows */
+    if(nrh < nrl)
+	pm_error("assert: h < l");
+    overflow_add(nrh - nrl, 1);
     MALLOCARRAY(m, (unsigned) (nrh - nrl + 1));
     if (m == NULL)
         pm_error("Unable to allocate memory for a matrix.");
@@ -102,6 +108,9 @@
     m -= ncl;
 
     /* allocate rows and set pointers to them */
+    if(nch < ncl)
+        pm_error("assert: h < l");
+    overflow_add(nch - ncl, 1);
     for (i = nrl; i <= nrh; i++)
     {
         MALLOCARRAY(m[i], (unsigned) (nch - ncl + 1));
--- netpbm-10.35.64/converter/other/gemtopnm.c
+++ netpbm-10.35.64/converter/other/gemtopnm.c
@@ -106,6 +106,7 @@
 
 	pnm_writepnminit( stdout, cols, rows, MAXVAL, type, 0 );
 
+    overflow_add(cols, padright);
     { 
         /* allocate input row data structure */
         int plane;
--- netpbm-10.35.64/converter/other/jpegtopnm.c
+++ netpbm-10.35.64/converter/other/jpegtopnm.c
@@ -828,6 +828,7 @@
     /* Calculate output image dimensions so we can allocate space */
     jpeg_calc_output_dimensions(cinfoP);
 
+    overflow2(cinfoP->output_width, cinfoP->output_components);
     jpegbuffer = ((*cinfoP->mem->alloc_sarray)
                   ((j_common_ptr) cinfoP, JPOOL_IMAGE,
                    cinfoP->output_width * cinfoP->output_components, 
--- netpbm-10.35.64/converter/other/pbmtopgm.c
+++ netpbm-10.35.64/converter/other/pbmtopgm.c
@@ -47,6 +47,7 @@
                  "than the image height (%u rows)", height, rows);
 
     outrow = pgm_allocrow(cols) ;
+    overflow2(width, height);
     maxval = MIN(PGM_OVERALLMAXVAL, width*height);
     pgm_writepgminit(stdout, cols, rows, maxval, 0) ;
 
--- netpbm-10.35.64/converter/other/pngtopnm.c
+++ netpbm-10.35.64/converter/other/pngtopnm.c
@@ -990,19 +990,24 @@
         pm_error ("couldn't allocate space for image");
     }
 
-    if (info_ptr->bit_depth == 16)
+    if (info_ptr->bit_depth == 16) {
+        overflow2(2, info_ptr->width);
         linesize = 2 * info_ptr->width;
-    else
+    } else
         linesize = info_ptr->width;
 
-    if (info_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+    if (info_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
+        overflow2(2, linesize);
         linesize *= 2;
-    else
-        if (info_ptr->color_type == PNG_COLOR_TYPE_RGB)
+    } else
+        if (info_ptr->color_type == PNG_COLOR_TYPE_RGB) {
+            overflow2(3, linesize);
             linesize *= 3;
-        else
-            if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+        } else
+            if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
+                overflow2(4, linesize);
                 linesize *= 4;
+	    }
 
     for (y = 0 ; y < info_ptr->height ; y++) {
         png_image[y] = malloc (linesize);
--- netpbm-10.35.64/converter/other/pnmtoddif.c
+++ netpbm-10.35.64/converter/other/pnmtoddif.c
@@ -484,6 +484,7 @@
     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;
@@ -499,6 +500,7 @@
         ip.polarity = 2;
         break;
     case PPM_TYPE:
+        overflow2(cols, 3);
         ip.bytes_per_line = 3 * cols;
         ip.bits_per_pixel = 24;
         ip.spectral = 5;
--- netpbm-10.35.64/converter/other/pnmtojpeg.c
+++ netpbm-10.35.64/converter/other/pnmtojpeg.c
@@ -587,6 +587,8 @@
   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) * 
@@ -665,6 +667,7 @@
     */
 
   /* 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, 
@@ -932,7 +935,11 @@
          * 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);
--- netpbm-10.35.64/converter/other/pnmtops.c
+++ netpbm-10.35.64/converter/other/pnmtops.c
@@ -184,16 +184,20 @@
     cmdlineP->canturn =  !noturn;
     cmdlineP->showpage = !noshowpage;
     
+    overflow2(width, 72);
     cmdlineP->width  = width * 72;
+    overflow2(height, 72);
     cmdlineP->height = height * 72;
 
-    if (imagewidthSpec)
+    if (imagewidthSpec) {
+        overflow2(imagewidth, 72);
         cmdlineP->imagewidth = imagewidth * 72;
-    else
+    } else
         cmdlineP->imagewidth = 0;
-    if (imageheightSpec)
+    if (imageheightSpec) {
+        overflow2(imageheight, 72);
         cmdlineP->imageheight = imageheight * 72;
-    else
+    } else
         cmdlineP->imageheight = 0;
 
     if (!cmdlineP->psfilter &&
--- netpbm-10.35.64/converter/other/pnmtorle.c
+++ netpbm-10.35.64/converter/other/pnmtorle.c
@@ -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
--- netpbm-10.35.64/converter/other/pnmtosgi.c
+++ netpbm-10.35.64/converter/other/pnmtosgi.c
@@ -213,6 +213,22 @@
     }
 }
 
+static void *
+xmalloc2(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
 put_big_short(short s)
 {
@@ -250,6 +266,7 @@
 #endif
 
     if( storage != STORAGE_VERBATIM ) {
+        overflow2(channels, rows);
         MALLOCARRAY_NOFAIL(table, channels * rows);
         MALLOCARRAY_NOFAIL(rletemp, WORSTCOMPR(cols));
     }
@@ -303,6 +320,8 @@
             break;
         case STORAGE_RLE:
             tabrow = chan_no * rows + row;
+            overflow2(chan_no, rows);
+            overflow_add(chan_no* rows, row);
             len = rle_compress(temp, cols);    /* writes result into rletemp */
             channel[chan_no][row].length = len;
             MALLOCARRAY(p, len);
--- netpbm-10.35.64/converter/other/rletopnm.c
+++ netpbm-10.35.64/converter/other/rletopnm.c
@@ -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
--- netpbm-10.35.64/converter/other/sgitopnm.c
+++ netpbm-10.35.64/converter/other/sgitopnm.c
@@ -252,13 +252,17 @@
 
     if (ochan < 0) {
         maxchannel = (head->zsize < 3) ? head->zsize : 3;
+        overflow2(head->ysize, maxchannel);
         MALLOCARRAY_NOFAIL(image, head->ysize * maxchannel);
     } else {
         maxchannel = ochan + 1;
         MALLOCARRAY_NOFAIL(image, head->ysize);
     }
-    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++ ) {
 #ifdef DEBUG
--- netpbm-10.35.64/converter/other/sirtopnm.c
+++ netpbm-10.35.64/converter/other/sirtopnm.c
@@ -69,6 +69,7 @@
 	    }
 	    break;
 	case PPM_TYPE:
+	    overflow3(cols, rows, 3);
 	    picsize = cols * rows * 3;
 	    planesize = cols * rows;
             if ( !( sirarray = (unsigned char*) malloc( picsize ) ) ) 
--- netpbm-10.35.64/converter/other/tifftopnm.c
+++ netpbm-10.35.64/converter/other/tifftopnm.c
@@ -748,7 +748,8 @@
     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");
 
--- netpbm-10.35.64/converter/other/xwdtopnm.c
+++ netpbm-10.35.64/converter/other/xwdtopnm.c
@@ -214,6 +214,10 @@
         *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;
@@ -608,6 +612,7 @@
 
     *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;
--- netpbm-10.35.64/converter/pbm/icontopbm.c
+++ netpbm-10.35.64/converter/pbm/icontopbm.c
@@ -11,6 +11,7 @@
 */
 
 #include <string.h>
+#include <limits.h>
 
 #include "nstring.h"
 #include "pbm.h"
@@ -87,6 +88,11 @@
     if ( *heightP <= 0 )
         pm_error( "invalid height (must be positive): %d", *heightP );
 
+    if ( *widthP > INT_MAX - 16 || *widthP < 0)
+        pm_error( "invalid width: %d", *widthP);
+    
+    overflow2(*widthP + 16, *heightP);
+    
     data_length = BitmapSize( *widthP, *heightP );
     *dataP = (short unsigned int *) malloc( data_length );
     if ( *dataP == NULL )
--- netpbm-10.35.64/converter/pbm/mdatopbm.c
+++ netpbm-10.35.64/converter/pbm/mdatopbm.c
@@ -245,10 +245,13 @@
         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);
     
--- netpbm-10.35.64/converter/pbm/mgrtopbm.c
+++ netpbm-10.35.64/converter/pbm/mgrtopbm.c
@@ -70,6 +70,7 @@
     
     *colsP = (((int)head.h_wide - ' ') << 6) + ((int)head.l_wide - ' ');
     *rowsP = (((int)head.h_high - ' ') << 6) + ((int) head.l_high - ' ');
+    overflow_add(*colsP, pad);
     *padrightP = ( ( *colsP + pad - 1 ) / pad ) * pad - *colsP;
     
     *bitsperitemP = 8;
--- netpbm-10.35.64/converter/pbm/pbmto10x.c
+++ netpbm-10.35.64/converter/pbm/pbmto10x.c
@@ -162,7 +162,7 @@
         res_60x72();
 
     pm_close(ifp);
-    exit(0);
+    return 0;
 }
 
 
--- netpbm-10.35.64/converter/pbm/pbmto4425.c
+++ netpbm-10.35.64/converter/pbm/pbmto4425.c
@@ -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 @@
     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" );
--- netpbm-10.35.64/converter/pbm/pbmtoascii.c
+++ netpbm-10.35.64/converter/pbm/pbmtoascii.c
@@ -115,9 +115,11 @@
         pm_usage( usage );
 
     pbm_readpbminit( ifp, &cols, &rows, &format );
+    overflow_add(cols, gridx);
     ccols = ( cols + gridx - 1 ) / gridx;
     bitrow = pbm_allocrow( cols );
     sig = (int*) pm_allocrow( ccols, sizeof(int) );
+    overflow_add(ccols, 1);
     line = (char*) pm_allocrow( ccols + 1, sizeof(char) );
 
     for ( row = 0; row < rows; row += gridy )
--- netpbm-10.35.64/converter/pbm/pbmtocmuwm.c
+++ netpbm-10.35.64/converter/pbm/pbmtocmuwm.c
@@ -43,6 +43,7 @@
     bitrow = pbm_allocrow( cols );
     
     /* Round cols up to the nearest multiple of 8. */
+    overflow_add(cols, 7);
     padright = ( ( cols + 7 ) / 8 ) * 8 - cols;
 
     putinit( rows, cols );
--- netpbm-10.35.64/converter/pbm/pbmtogem.c
+++ netpbm-10.35.64/converter/pbm/pbmtogem.c
@@ -123,6 +123,7 @@
   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));
--- netpbm-10.35.64/converter/pbm/pbmtogo.c
+++ netpbm-10.35.64/converter/pbm/pbmtogo.c
@@ -96,6 +96,7 @@
     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;
--- netpbm-10.35.64/converter/pbm/pbmtoicon.c
+++ netpbm-10.35.64/converter/pbm/pbmtoicon.c
@@ -42,6 +42,7 @@
     bitrow = pbm_allocrow( cols );
     
     /* Round cols up to the nearest multiple of 16. */
+    overflow_add(cols, 15);
     pad = ( ( cols + 15 ) / 16 ) * 16 - cols;
     padleft = pad / 2;
     padright = pad - padleft;
--- netpbm-10.35.64/converter/pbm/pbmtolj.c
+++ netpbm-10.35.64/converter/pbm/pbmtolj.c
@@ -119,7 +119,11 @@
 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;
 
--- netpbm-10.35.64/converter/pbm/pbmtomacp.c
+++ netpbm-10.35.64/converter/pbm/pbmtomacp.c
@@ -101,6 +101,7 @@
   if( !lflg )
     left = 0;
 
+  overflow_add(left, MAX_COLS - 1);
   if( rflg )
   { if( right - left >= MAX_COLS )
       right = left + MAX_COLS - 1;
@@ -111,6 +112,8 @@
   if( !tflg )
     top = 0;
 
+  overflow_add(top, MAX_LINES - 1);
+
   if( bflg )
   { if( bottom - top >= MAX_LINES )
       bottom = top + MAX_LINES - 1;
--- netpbm-10.35.64/converter/pbm/pbmtomda.c
+++ netpbm-10.35.64/converter/pbm/pbmtomda.c
@@ -179,6 +179,7 @@
     
     nOutRowsUnrounded = bScale ? nInRows/2 : nInRows;
 
+    overflow_add(nOutRowsUnrounded, 3);
     nOutRows = ((nOutRowsUnrounded + 3) / 4) * 4;
         /* MDA wants rows a multiple of 4 */   
     nOutCols = nInCols / 8;
--- netpbm-10.35.64/converter/pbm/pbmtomgr.c
+++ netpbm-10.35.64/converter/pbm/pbmtomgr.c
@@ -43,6 +43,7 @@
     bitrow = pbm_allocrow( cols );
     
     /* Round cols up to the nearest multiple of 8. */
+    overflow_add(cols, 7);
     padright = ( ( cols + 7 ) / 8 ) * 8 - cols;
 
     putinit( rows, cols );
--- netpbm-10.35.64/converter/pbm/pbmtoppa/pbm.c
+++ netpbm-10.35.64/converter/pbm/pbmtoppa/pbm.c
@@ -105,6 +105,7 @@
     return 0;
 
   case P4:
+    overflow_add(pbm->width, 7);
     tmp=(pbm->width+7)/8;
     tmp2=fread(data,1,tmp,pbm->fptr);
     if(tmp2 == tmp)
@@ -129,7 +130,8 @@
     return;
 
   pbm->unread = 1;
-  pbm->revdata = malloc ((pbm->width+7)/8);
+  overflow_add(pbm->width, 7);
+  pbm->revdata = malloc((pbm->width+7)/8);
   memcpy (pbm->revdata, data, (pbm->width+7)/8);
   pbm->current_line--;
 }
--- netpbm-10.35.64/converter/pbm/pbmtoppa/pbmtoppa.c
+++ netpbm-10.35.64/converter/pbm/pbmtoppa/pbmtoppa.c
@@ -441,6 +441,7 @@
             pm_error("main(): unrecognized parameter '%s'", argv[argn]);
     }
 
+    overflow_add(Width, 7);
     Pwidth=(Width+7)/8;
     printer.fptr=out;
 
--- netpbm-10.35.64/converter/pbm/pbmtox10bm.c
+++ netpbm-10.35.64/converter/pbm/pbmtox10bm.c
@@ -57,6 +57,7 @@
     bitrow = pbm_allocrow( cols );
 
     /* Compute padding to round cols up to the nearest multiple of 16. */
+    overflow_add(cols, 15);
     padright = ( ( cols + 15 ) / 16 ) * 16 - cols;
 
     printf( "#define %s_width %d\n", name, cols );
--- netpbm-10.35.64/converter/pbm/pbmtoxbm.c
+++ netpbm-10.35.64/converter/pbm/pbmtoxbm.c
@@ -100,6 +100,7 @@
     bitrow = pbm_allocrow(cols);
     
     /* Compute padding to round cols up to the nearest multiple of 8. */
+    overflow_add(cols, 8);
     padright = ((cols + 7)/8) * 8 - cols;
 
     printf("#define %s_width %d\n", name, cols);
--- netpbm-10.35.64/converter/pbm/pbmtoybm.c
+++ netpbm-10.35.64/converter/pbm/pbmtoybm.c
@@ -45,6 +45,7 @@
     bitrow = pbm_allocrow( cols );
     
     /* Compute padding to round cols up to the nearest multiple of 16. */
+    overflow_add(cols, 16);
     padright = ( ( cols + 15 ) / 16 ) * 16 - cols;
 
     putinit( cols, rows );
--- netpbm-10.35.64/converter/pbm/pbmtozinc.c
+++ netpbm-10.35.64/converter/pbm/pbmtozinc.c
@@ -65,6 +65,7 @@
     bitrow = pbm_allocrow( cols );
 
     /* Compute padding to round cols up to the nearest multiple of 16. */
+    overflow_add(cols, 16);
     padright = ( ( cols + 15 ) / 16 ) * 16 - cols;
 
     printf( "USHORT %s[] = {\n",name);
--- netpbm-10.35.64/converter/pbm/pktopbm.c
+++ netpbm-10.35.64/converter/pbm/pktopbm.c
@@ -277,6 +277,7 @@
         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]) {
--- netpbm-10.35.64/converter/pbm/thinkjettopbm.l
+++ netpbm-10.35.64/converter/pbm/thinkjettopbm.l
@@ -106,7 +106,9 @@
 <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.");
@@ -216,6 +218,8 @@
     /*
      * Quite simple since ThinkJet bit arrangement matches PBM
      */
+
+    overflow2(maxRowLength, 8);
     pbm_writepbminit(stdout, maxRowLength*8, rowCount, 0);
 
     packed_bitrow = malloc(maxRowLength);
--- netpbm-10.35.64/converter/pbm/ybmtopbm.c
+++ netpbm-10.35.64/converter/pbm/ybmtopbm.c
@@ -88,6 +88,7 @@
 	pm_error( "EOF / read error" );
 
     *depthP = 1;
+    overflow_add(*colsP, 15);
     *padrightP = ( ( *colsP + 15 ) / 16 ) * 16 - *colsP;
     bitsperitem = 0;
     }
--- netpbm-10.35.64/converter/pgm/lispmtopgm.c
+++ netpbm-10.35.64/converter/pgm/lispmtopgm.c
@@ -58,6 +58,7 @@
         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 @@
     
     if ( *depthP == 0 )
 	*depthP = 1;	/* very old file */
-    
+
+    overflow_add((int)colsP, 31);
+        
     *padrightP = ( ( *colsP + 31 ) / 32 ) * 32 - *colsP;
     
     if ( *colsP != (cols_32 - *padrightP) ) {
--- netpbm-10.35.64/converter/pgm/psidtopgm.c
+++ netpbm-10.35.64/converter/pgm/psidtopgm.c
@@ -78,6 +78,7 @@
         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;
--- netpbm-10.35.64/converter/ppm/Makefile
+++ netpbm-10.35.64/converter/ppm/Makefile
@@ -11,7 +11,7 @@
 
 PORTBINARIES =	411toppm eyuvtoppm gouldtoppm ilbmtoppm imgtoppm \
 		leaftoppm mtvtoppm neotoppm \
-		pcxtoppm pc1toppm pi1toppm picttoppm pjtoppm \
+		pcxtoppm pc1toppm pi1toppm pjtoppm \
 		ppmtoacad ppmtoarbtxt \
 		ppmtobmp ppmtoeyuv ppmtogif ppmtoicr ppmtoilbm \
 		ppmtoleaf ppmtolj ppmtomitsu ppmtoneo \
--- netpbm-10.35.64/converter/ppm/ilbmtoppm.c
+++ netpbm-10.35.64/converter/ppm/ilbmtoppm.c
@@ -595,6 +595,7 @@
     rawtype *chp;
 
     cols = bmhdP->w;
+    overflow_add(cols, 15);
     bytes = RowBytes(cols);
     for( plane = 0; plane < nPlanes; plane++ ) {
         int mask;
@@ -682,6 +683,23 @@
  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(cmap, row, palchange)
@@ -1294,6 +1312,9 @@
     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);
@@ -1725,7 +1746,9 @@
             ChangeCount32 = *data++;
             datasize -= 2;
 
+            overflow_add(ChangeCount16, ChangeCount32);
             changes = ChangeCount16 + ChangeCount32;
+            overflow_add(changes, 1);
             for( i = 0; i < changes; i++ ) {
                 if( totalchanges >= PCHG->TotalChanges ) goto fail;
                 if( datasize < 2 ) goto fail;
@@ -1852,6 +1875,7 @@
             if( datasize < 2 ) goto fail;
             changes = BIG_WORD(data); data += 2; datasize -= 2;
 
+            overflow_add(changes, 1);
             MALLOCARRAY_NOFAIL(cmap->mp_change[row], changes + 1);
             for( i = 0; i < changes; i++ ) {
                 if( totalchanges >= PCHG->TotalChanges ) goto fail;
@@ -1965,6 +1989,9 @@
             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++ )
@@ -2041,6 +2068,7 @@
     if( typeid == ID_ILBM ) {
         int isdeep;
 
+        overflow_add(bmhdP->w, 15);
         MALLOCARRAY_NOFAIL(ilbmrow, RowBytes(bmhdP->w));
         *viewportmodesP |= fakeviewport;      /* -isham/-isehb */
 
--- netpbm-10.35.64/converter/ppm/imgtoppm.c
+++ netpbm-10.35.64/converter/ppm/imgtoppm.c
@@ -84,6 +84,7 @@
             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 @@
                 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)",
--- netpbm-10.35.64/converter/ppm/pcxtoppm.c
+++ netpbm-10.35.64/converter/ppm/pcxtoppm.c
@@ -408,6 +408,7 @@
     /*
      * clear the pixel buffer
      */
+    overflow2(bytesperline, 8);
     npixels = (bytesperline * 8) / bitsperpixel;
     p    = pixels;
     while (--npixels >= 0)
@@ -469,6 +470,7 @@
     }
 
     /*  BytesPerLine should be >= BitsPerPixel * cols / 8  */
+    overflow2(BytesPerLine, 8);
     rawcols = BytesPerLine * 8 / BitsPerPixel;
     if (headerCols > rawcols) {
         pm_message("warning - BytesPerLine = %d, "
--- netpbm-10.35.64/converter/ppm/picttoppm.c
+++ netpbm-10.35.64/converter/ppm/picttoppm.c
@@ -1,3 +1,5 @@
+#error "Unfixable. Don't ship me"
+
 /*
  * picttoppm.c -- convert a MacIntosh PICT file to PPM format.
  *
--- netpbm-10.35.64/converter/ppm/pjtoppm.c
+++ netpbm-10.35.64/converter/ppm/pjtoppm.c
@@ -127,19 +127,21 @@
                 case 'V':   /* send plane */
                 case 'W':   /* send last plane */
                     if (rows == -1 || r >= rows || image == NULL) {
-                        if (rows == -1 || r >= rows)
+                        if (rows == -1 || r >= rows) {
+                            overflow_add(rows, 100);
                             rows += 100;
+                        }
                         if (image == NULL) {
-                            MALLOCARRAY(image, rows * planes);
-                            MALLOCARRAY(imlen, rows * planes);
+                            image = (unsigned char **)
+                                malloc3(rows , planes , sizeof(unsigned char *));
+                            imlen = (int *) malloc3(rows , planes,  sizeof(int));
                         }
                         else {
+                            overflow2(rows,planes);
                             image = (unsigned char **) 
-                                realloc(image, 
-                                        rows * planes * 
+                                realloc2(image, rows * planes,
                                         sizeof(unsigned char *));
-                            imlen = (int *) 
-                                realloc(imlen, rows * planes * sizeof(int));
+                            imlen = (int *) realloc2(imlen, rows * planes, sizeof(int));
                         }
                     }
                     if (image == NULL || imlen == NULL)
@@ -212,8 +214,10 @@
                 for (i = 0, c = 0; c < imlen[p + r * planes]; c += 2)
                     for (cmd = image[p + r * planes][c],
                              val = image[p + r * planes][c+1]; 
-                         cmd >= 0 && i < newcols; cmd--, i++) 
+                         cmd >= 0 && i < newcols; cmd--, i++) {
                         buf[i] = val;
+                        overflow_add(i, 1);
+                    }
                 cols = cols > i ? cols : i;
                 free(image[p + r * planes]);
                 /* 
@@ -224,6 +228,7 @@
                 image[p + r * planes] = (unsigned char *) realloc(buf, i);
             }
         }
+        overflow2(cols, 8);
         cols *= 8;
     }
             
--- netpbm-10.35.64/converter/ppm/ppmtoeyuv.c
+++ netpbm-10.35.64/converter/ppm/ppmtoeyuv.c
@@ -114,6 +114,7 @@
 
     int index;
 
+    overflow_add(maxval, 1);
     MALLOCARRAY_NOFAIL(mult299   , maxval+1);
     MALLOCARRAY_NOFAIL(mult587   , maxval+1);
     MALLOCARRAY_NOFAIL(mult114   , maxval+1);
--- netpbm-10.35.64/converter/ppm/ppmtoicr.c
+++ netpbm-10.35.64/converter/ppm/ppmtoicr.c
@@ -169,7 +169,7 @@
 
 	if (rleflag) {	
 		pm_message("sending run-length encoded picture data ..." );
-		testimage = (char*) malloc(rows*cols);
+		testimage = (char*) malloc2(rows, cols);
 		p = testimage;
 		for (i=0; i<rows; i++)
 			for (j=0; j<cols; j++) 
--- netpbm-10.35.64/converter/ppm/ppmtoilbm.c
+++ netpbm-10.35.64/converter/ppm/ppmtoilbm.c
@@ -1251,6 +1251,7 @@
 
     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 ) {
@@ -1339,6 +1340,7 @@
 
     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 ) {
@@ -1821,6 +1823,7 @@
     int i;
     int *table;
 
+    overflow_add(oldmaxval, 1);
     MALLOCARRAY_NOFAIL(table, oldmaxval + 1);
     for(i = 0; i <= oldmaxval; i++ )
         table[i] = (i * newmaxval + oldmaxval/2) / oldmaxval;
@@ -2325,8 +2328,11 @@
         MALLOCARRAY_NOFAIL(coded_rowbuf, RowBytes(cols));
         for (i = 0; i < RowBytes(cols); ++i)
             coded_rowbuf[i] = 0;
-        if (DO_COMPRESS)
+        if (DO_COMPRESS) {
+            overflow2(cols,2);
+            overflow_add(cols*2,2);
             MALLOCARRAY_NOFAIL(compr_rowbuf, WORSTCOMPR(RowBytes(cols)));
+	}
     }
     
     switch (mode) {
--- netpbm-10.35.64/converter/ppm/ppmtolj.c
+++ netpbm-10.35.64/converter/ppm/ppmtolj.c
@@ -181,7 +181,8 @@
 
     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)
--- netpbm-10.35.64/converter/ppm/ppmtomitsu.c
+++ netpbm-10.35.64/converter/ppm/ppmtomitsu.c
@@ -166,6 +166,8 @@
         medias = MSize_User;
 
         if (dpi300) {
+        	overflow2(medias.maxcols, 2);
+        	overflow2(medias.maxrows, 2);
                 medias.maxcols *= 2;
                 medias.maxrows *= 2;
         }
--- netpbm-10.35.64/converter/ppm/ppmtopcx.c
+++ netpbm-10.35.64/converter/ppm/ppmtopcx.c
@@ -418,6 +418,8 @@
             else                   Planes = 1;
         }
     }
+    overflow2(BitsPerPixel, cols);
+    overflow_add(BitsPerPixel * cols, 7);
     BytesPerLine = ((cols * BitsPerPixel) + 7) / 8;
     MALLOCARRAY_NOFAIL(indexRow, cols);
     MALLOCARRAY_NOFAIL(planesrow, BytesPerLine);
--- netpbm-10.35.64/converter/ppm/ppmtopict.c
+++ netpbm-10.35.64/converter/ppm/ppmtopict.c
@@ -245,6 +245,8 @@
 	putShort(stdout, 0);			/* mode */
 
 	/* Finally, write out the data. */
+	overflow_add(cols/MAX_COUNT, 1);
+        overflow_add(cols, cols/MAX_COUNT+1);
 	packed = (char*) malloc((unsigned)(cols+cols/MAX_COUNT+1));
 	oc = 0;
 	for (row = 0; row < rows; row++)
--- netpbm-10.35.64/converter/ppm/ppmtopj.c
+++ netpbm-10.35.64/converter/ppm/ppmtopj.c
@@ -179,6 +179,7 @@
 	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));
 
--- netpbm-10.35.64/converter/ppm/ppmtopjxl.c
+++ netpbm-10.35.64/converter/ppm/ppmtopjxl.c
@@ -274,6 +274,8 @@
       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. */
    fprintf( stderr, "(Computing colormap..." ); fflush( stderr );
@@ -294,6 +296,8 @@
       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 */
@@ -303,9 +307,13 @@
       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);
    if ((inrow = (char *)malloc((unsigned)bpp)) == NULL ||
        (outrow = (char *)malloc((unsigned)bpp*2)) == NULL ||
        (runcnt = (signed char *)malloc((unsigned)bpp)) == NULL)
--- netpbm-10.35.64/converter/ppm/ppmtowinicon.c
+++ netpbm-10.35.64/converter/ppm/ppmtowinicon.c
@@ -12,6 +12,7 @@
 
 #include <math.h>
 #include <string.h>
+#include <stdlib.h>
 
 #include "winico.h"
 #include "ppm.h"
@@ -218,6 +219,7 @@
    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;
@@ -346,6 +348,7 @@
    MALLOCARRAY_NOFAIL(rowData, rows);
    icBitmap->xBytes = xBytes;
    icBitmap->data   = rowData;
+   overflow2(xBytes, rows);
    icBitmap->size   = xBytes * rows;
 
    for (y=0;y<rows;y++) {
@@ -406,6 +409,7 @@
    MALLOCARRAY_NOFAIL(rowData, rows);
    icBitmap->xBytes = xBytes;
    icBitmap->data   = rowData;
+   overflow2(xBytes, rows);
    icBitmap->size   = xBytes * rows;
 
    for (y=0;y<rows;y++) {
@@ -713,6 +717,10 @@
     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) 
--- netpbm-10.35.64/converter/ppm/ppmtoxpm.c
+++ netpbm-10.35.64/converter/ppm/ppmtoxpm.c
@@ -195,6 +195,7 @@
     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");
 
@@ -312,6 +313,7 @@
     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.",
--- netpbm-10.35.64/converter/ppm/qrttoppm.c
+++ netpbm-10.35.64/converter/ppm/qrttoppm.c
@@ -46,7 +46,7 @@
 
     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" );
 
--- netpbm-10.35.64/converter/ppm/sldtoppm.c
+++ netpbm-10.35.64/converter/ppm/sldtoppm.c
@@ -306,7 +306,9 @@
     }
 
     /* 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,
--- netpbm-10.35.64/converter/ppm/ximtoppm.c
+++ netpbm-10.35.64/converter/ppm/ximtoppm.c
@@ -115,6 +115,7 @@
     header->bits_channel = atoi(a_head.bits_per_channel);
     header->alpha_flag = atoi(a_head.alpha_channel);
     if (strlen(a_head.author)) {
+    	overflow_add(strlen(a_head.author),1);
         if (!(header->author = calloc((unsigned int)strlen(a_head.author)+1,
                 1))) {
             pm_message("ReadXimHeader: can't calloc author string" );
@@ -124,6 +125,7 @@
         strncpy(header->author, a_head.author, strlen(a_head.author));
     }
     if (strlen(a_head.date)) {
+        overflow_add(strlen(a_head.date),1);
         if (!(header->date =calloc((unsigned int)strlen(a_head.date)+1,1))){
             pm_message("ReadXimHeader: can't calloc date string" );
             return(0);
@@ -132,6 +134,7 @@
         strncpy(header->date, a_head.date, strlen(a_head.date));
     }
     if (strlen(a_head.program)) {
+        overflow_add(strlen(a_head.program),1);
         if (!(header->program = calloc(
                     (unsigned int)strlen(a_head.program) + 1, 1))) {
             pm_message("ReadXimHeader: can't calloc program string" );
@@ -158,6 +161,7 @@
     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) {
--- netpbm-10.35.64/converter/ppm/xpmtoppm.c
+++ netpbm-10.35.64/converter/ppm/xpmtoppm.c
@@ -700,6 +700,7 @@
                        &ncolors, colorsP, &ptab);
         *transparentP = -1;  /* No transparency in version 1 */
     }
+    overflow2(*widthP, *heightP);
     totalpixels = *widthP * *heightP;
     MALLOCARRAY(*dataP, totalpixels);
     if (*dataP == NULL)
--- netpbm-10.35.64/converter/ppm/yuvtoppm.c
+++ netpbm-10.35.64/converter/ppm/yuvtoppm.c
@@ -72,6 +72,7 @@
 
 	ppm_writeppminit(stdout, cols, rows, (pixval) 255, 0);
 	pixrow = ppm_allocrow(cols);
+    overflow_add(cols, 1);
     MALLOCARRAY(yuvbuf, (cols+1)/2);
     if (yuvbuf == NULL)
         pm_error("Unable to allocate YUV buffer for %d columns.", cols);
--- netpbm-10.35.64/editor/pamcut.c
+++ netpbm-10.35.64/editor/pamcut.c
@@ -527,6 +527,8 @@
     outpam.width  = rightcol-leftcol+1;
     outpam.height = bottomrow-toprow+1;
 
+    overflow_add(rightcol, 1);
+    overflow_add(toprow, 1);
     pnm_writepaminit(&outpam);
 
     /* Write out top padding */
--- netpbm-10.35.64/editor/pamoil.c
+++ netpbm-10.35.64/editor/pamoil.c
@@ -112,6 +112,7 @@
     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.");
--- netpbm-10.35.64/editor/pbmpscale.c
+++ netpbm-10.35.64/editor/pbmpscale.c
@@ -109,6 +109,7 @@
    inrow[0] = inrow[1] = inrow[2] = NULL;
    pbm_readpbminit(ifd, &columns, &rows, &format) ;
 
+   overflow2(columns, scale);
    outrow = pbm_allocrow(columns*scale) ;
    MALLOCARRAY(flags, columns);
    if (flags == NULL) 
--- netpbm-10.35.64/editor/pbmreduce.c
+++ netpbm-10.35.64/editor/pbmreduce.c
@@ -93,6 +93,7 @@
 
     if ( halftone == QT_FS ) {
         /* Initialize Floyd-Steinberg. */
+        overflow_add(newcols, 2);
         MALLOCARRAY(thiserr, newcols + 2);
         MALLOCARRAY(nexterr, newcols + 2);
         if ( thiserr == NULL || nexterr == NULL )
--- netpbm-10.35.64/editor/pnmcut.c
+++ netpbm-10.35.64/editor/pnmcut.c
@@ -373,6 +373,7 @@
                    toprow, leftcol, bottomrow, rightcol);
     }
 
+    overflow_add(rightcol, 1);
     output_cols = rightcol-leftcol+1;
     output_row = pnm_allocrow(output_cols);
     
--- netpbm-10.35.64/editor/pnmgamma.c
+++ netpbm-10.35.64/editor/pnmgamma.c
@@ -586,6 +586,7 @@
                   xelval **             const btableP) {
 
     /* Allocate space for the tables. */
+    overflow_add(maxval, 1);
     MALLOCARRAY(*rtableP, maxval+1);
     MALLOCARRAY(*gtableP, maxval+1);
     MALLOCARRAY(*btableP, maxval+1);
--- netpbm-10.35.64/editor/pnmhisteq.c
+++ netpbm-10.35.64/editor/pnmhisteq.c
@@ -102,6 +102,7 @@
     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",
--- netpbm-10.35.64/editor/pnmindex.csh
+++ netpbm-10.35.64/editor/pnmindex.csh
@@ -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.
--- netpbm-10.35.64/editor/pnmpad.c
+++ netpbm-10.35.64/editor/pnmpad.c
@@ -358,6 +358,8 @@
 
     computePadSizes(cmdline, cols, rows, &lpad, &rpad, &tpad, &bpad);
 
+    overflow_add(cols, lpad);
+    overflow_add(cols + lpad, rpad);
     newcols = cols + lpad + rpad;
     xelrow = pnm_allocrow(newcols);
     bgrow = pnm_allocrow(newcols);
--- netpbm-10.35.64/editor/pnmpaste.c
+++ netpbm-10.35.64/editor/pnmpaste.c
@@ -101,11 +101,16 @@
 	    "y is too large -- the second anymap has only %d rows",
 	    rows2 );
 
+    overflow_add(x, cols2);
+    overflow_add(y, rows2);
     if ( x < 0 )
 	x += cols2;
     if ( y < 0 )
 	y += rows2;
 
+    overflow_add(x, cols1);
+    overflow_add(y, rows1);
+    
     if ( x + cols1 > cols2 )
 	pm_error( "x + width is too large by %d pixels", x + cols1 - cols2 );
     if ( y + rows1 > rows2 )
--- netpbm-10.35.64/editor/pnmremap.c
+++ netpbm-10.35.64/editor/pnmremap.c
@@ -279,6 +279,7 @@
 
     unsigned int const fserrSize = pamP->width + 2;
 
+    overflow_add(pamP->width, 2);
     MALLOCARRAY(fserrP->thiserr, pamP->depth);
     if (fserrP->thiserr == NULL)
         pm_error("Out of memory allocating Floyd-Steinberg structures "
@@ -322,6 +323,7 @@
 
     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) 
--- netpbm-10.35.64/editor/pnmscalefixed.c
+++ netpbm-10.35.64/editor/pnmscalefixed.c
@@ -209,6 +209,8 @@
                           const int rows, const int cols,
                           int * newrowsP, int * newcolsP) {
 
+    overflow2(rows, cols);
+
     if (cmdline.pixels) {
         if (rows * cols <= cmdline.pixels) {
             *newrowsP = rows;
@@ -260,6 +262,8 @@
 
     if (*newcolsP < 1) *newcolsP = 1;
     if (*newrowsP < 1) *newrowsP = 1;
+    
+    overflow2(*newcolsP, *newrowsP);
 }        
 
 
@@ -441,6 +445,9 @@
        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;
 
--- netpbm-10.35.64/editor/pnmshear.c
+++ netpbm-10.35.64/editor/pnmshear.c
@@ -14,6 +14,7 @@
 
 #include <math.h>
 #include <string.h>
+#include <limits.h>
 
 #include "pnm.h"
 #include "shhopt.h"
@@ -196,6 +197,11 @@
     if ( shearfac < 0.0 )
         shearfac = -shearfac;
 
+    if(rows * shearfac >= INT_MAX-1)
+    	pm_error("image too large");
+    
+    overflow_add(rows * shearfac, cols+1);
+    
     newcols = rows * shearfac + cols + 0.999999;
 
     pnm_writepnminit( stdout, newcols, rows, newmaxval, newformat, 0 );
--- netpbm-10.35.64/editor/ppmdither.c
+++ netpbm-10.35.64/editor/ppmdither.c
@@ -111,6 +111,9 @@
             (dith_dim * sizeof(int *)) + /* pointers */
             (dith_dim * dith_dim * sizeof(int)); /* data */
 
+        overflow2(dith_dim, sizeof(int *));
+        overflow3(dith_dim, dith_dim, sizeof(int));
+        overflow_add(dith_dim * sizeof(int *), dith_dim * dith_dim * sizeof(int));
         dith_mat = (unsigned int **) malloc(dith_mat_sz);
 
         if (dith_mat == NULL) 
@@ -165,7 +168,8 @@
     if (dith_nb < 2) 
         pm_error("too few shades for blue, minimum of 2");
 
-    MALLOCARRAY(*colormapP, dith_nr * dith_ng * dith_nb);
+    overflow2(dith_nr, dith_ng);
+    *colormapP = malloc3(dith_nr * dith_ng, dith_nb,  sizeof(pixel));
     if (*colormapP == NULL) 
         pm_error("Unable to allocate space for the color lookup table "
                  "(%d by %d by %d pixels).", dith_nr, dith_ng, dith_nb);
--- netpbm-10.35.64/generator/pbmpage.c
+++ netpbm-10.35.64/generator/pbmpage.c
@@ -170,6 +170,9 @@
     /* We round the allocated row space up to a multiple of 8 so the ugly
        fast code below can work.
        */
+    
+    overflow_add(bitmap.Width, 7);
+    
     pbmrow = pbm_allocrow(((bitmap.Width+7)/8)*8);
     
     bitmap_cursor = 0;
--- netpbm-10.35.64/generator/pbmtext.c
+++ netpbm-10.35.64/generator/pbmtext.c
@@ -89,12 +89,14 @@
         
         for (i = 1; i < argc; i++) {
             if (i > 1) {
+                overflow_add(totaltextsize, 1);
                 totaltextsize += 1;
                 text = realloc(text, totaltextsize);
                 if (text == NULL)
                     pm_error("out of memory allocating space for input text");
                 strcat(text, " ");
             } 
+            overflow_add(totaltextsize, strlen(argv[i]));
             totaltextsize += strlen(argv[i]);
             text = realloc(text, totaltextsize);
             if (text == NULL)
@@ -575,6 +577,7 @@
     struct text input_text;
 
     if (cmdline_text) {
+        overflow_add(strlen(cmdline_text), 1);
         allocTextArray(&input_text, 1, strlen(cmdline_text)*8);
         strcpy(input_text.textArray[0], cmdline_text);
         fix_control_chars(input_text.textArray[0], fn);
@@ -600,7 +603,9 @@
                          "Cannot process.", (sizeof(buf)-1)/8);
             fix_control_chars(buf, fn);
             if (lineCount >= maxlines) {
+                overflow2(maxlines, 2);
                 maxlines *= 2;
+                overflow2(maxlines, sizeof(char *));
                 text_array = (char**) realloc((char*) text_array, 
                                               maxlines * sizeof(char*));
                 if (text_array == NULL)
@@ -686,6 +691,7 @@
             hmargin = fontP->maxwidth;
         } else {
             vmargin = fontP->maxheight;
+	    overflow2(2, fontP->maxwidth);
             hmargin = 2 * fontP->maxwidth;
         }
     }
@@ -702,6 +708,12 @@
     } else
         formattedText = inputText;
     
+    overflow2(2, vmargin);
+    overflow2(formattedText.lineCount, fontP->maxheight);
+    overflow2(formattedText.lineCount-1, cmdline.lspace);
+    overflow_add(vmargin * 2, formattedText.lineCount * fontP->maxheight);
+    overflow_add(vmargin * 2 + formattedText.lineCount * fontP->maxheight, (formattedText.lineCount-1) * cmdline.lspace);
+    
     rows = 2 * vmargin + 
         formattedText.lineCount * fontP->maxheight + 
         (formattedText.lineCount-1) * cmdline.lspace;
@@ -709,6 +721,9 @@
     compute_image_width(formattedText, fontP, cmdline.space,
                         &maxwidth, &maxleftb);
 
+    overflow2(2, hmargin);
+    overflow_add(2*hmargin, maxwidth);
+
     cols = 2 * hmargin + maxwidth;
 
     if (cols == 0 || rows == 0)
--- netpbm-10.35.64/generator/pgmcrater.c
+++ netpbm-10.35.64/generator/pgmcrater.c
@@ -132,7 +132,7 @@
     /* Acquire the elevation array and initialize it to mean
        surface elevation. */
 
-    MALLOCARRAY(aux, SCRX * SCRY);
+    aux = (unsigned short *) malloc3(SCRX, SCRY, sizeof(short));
     if (aux == NULL) 
         pm_error("out of memory allocating elevation array");
 
--- netpbm-10.35.64/generator/pgmkernel.c
+++ netpbm-10.35.64/generator/pgmkernel.c
@@ -68,7 +68,7 @@
     kycenter = (fysize - 1) / 2.0;
     ixsize = fxsize + 0.999;
     iysize = fysize + 0.999;
-    MALLOCARRAY(fkernel, ixsize * iysize);
+    fkernel = (double *) malloc3 (ixsize, iysize, sizeof(double));
     for (i = 0; i < iysize; i++) 
         for (j = 0; j < ixsize; j++) {
             fkernel[i*ixsize+j] = 1.0 / (1.0 + w * sqrt((double)
--- netpbm-10.35.64/lib/libpam.c
+++ netpbm-10.35.64/lib/libpam.c
@@ -227,7 +227,8 @@
     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
--- netpbm-10.35.64/lib/libpammap.c
+++ netpbm-10.35.64/lib/libpammap.c
@@ -103,6 +103,8 @@
     */
     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);
--- netpbm-10.35.64/lib/libpbm1.c
+++ netpbm-10.35.64/lib/libpbm1.c
@@ -56,6 +56,7 @@
         pm_message("pm_filepos passed to pm_check() is %u bytes",
                    sizeof(pm_filepos));
 #endif
+        overflow2(bytes_per_row, rows);
         pm_check(file, check_type, need_raster_size, retval_p);
     }
 }
--- netpbm-10.35.64/lib/libpbmvms.c
+++ netpbm-10.35.64/lib/libpbmvms.c
@@ -1,3 +1,5 @@
+#warning "NOT AUDITED"
+
 /***************************************************************************
   This file contains library routines needed to build Netpbm for VMS.
   However, as of 2000.05.26, when these were split out of libpbm1.c
--- netpbm-10.35.64/lib/libpm.c
+++ netpbm-10.35.64/lib/libpm.c
@@ -36,6 +36,7 @@
     /* This makes the the x64() functions available on AIX */
 
 #include <stdio.h>
+#include <limits.h>
 #include <stdarg.h>
 #include <string.h>
 #include <errno.h>
@@ -213,7 +214,7 @@
     if (rowIndex == NULL)
         pm_error("out of memory allocating row index (%u rows) for an array",
                  rows);
-    rowheap = malloc(rows * cols * size);
+    rowheap = malloc3(rows, cols, size);
     if (rowheap == NULL) {
         /* We couldn't get the whole heap in one block, so try fragmented
            format.
@@ -1491,4 +1492,53 @@
 }
 
 
+/*
+ *	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);
+}
 
--- netpbm-10.35.64/lib/pm.h
+++ netpbm-10.35.64/lib/pm.h
@@ -343,4 +343,11 @@
 #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
--- netpbm-10.35.64/other/pnmcolormap.c
+++ netpbm-10.35.64/other/pnmcolormap.c
@@ -839,6 +839,7 @@
             pamP->width = intsqrt;
         else 
             pamP->width = intsqrt + 1;
+            overflow_add(intsqrt, 1);
     }
     {
         unsigned int const intQuotient = colormap.size / pamP->width;
--- netpbm-10.35.64/urt/README
+++ netpbm-10.35.64/urt/README
@@ -18,3 +18,8 @@
 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>
--- netpbm-10.35.64/urt/Runput.c
+++ netpbm-10.35.64/urt/Runput.c
@@ -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 @@
     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 @@
 	/* 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,
--- netpbm-10.35.64/urt/rle.h
+++ netpbm-10.35.64/urt/rle.h
@@ -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.
@@ -166,6 +169,17 @@
  */
 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. */
 
--- netpbm-10.35.64/urt/rle_addhist.c
+++ netpbm-10.35.64/urt/rle_addhist.c
@@ -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
@@ -76,13 +78,19 @@
         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... */
@@ -90,9 +98,12 @@
     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);
--- netpbm-10.35.64/urt/rle_getrow.c
+++ netpbm-10.35.64/urt/rle_getrow.c
@@ -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.
@@ -168,6 +170,7 @@
         register char * cp;
 
         VAXSHORT( comlen, infile ); /* get comment length */
+	overflow_add(comlen, 1);
         evenlen = (comlen + 1) & ~1;    /* make it even */
         if ( evenlen )
         {
--- netpbm-10.35.64/urt/rle_hdr.c
+++ netpbm-10.35.64/urt/rle_hdr.c
@@ -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.
@@ -79,7 +81,10 @@
     /* Fill in with copies of the strings. */
     if ( the_hdr->cmd != pgmname )
     {
-	char *tmp = (char *)malloc( strlen( pgmname ) + 1 );
+	char *tmp ;
+
+	overflow_add(strlen(pgmname), 1);
+	tmp = malloc( strlen( pgmname ) + 1 );
 	RLE_CHECK_ALLOC( pgmname, tmp, 0 );
 	strcpy( tmp, pgmname );
 	the_hdr->cmd = tmp;
@@ -87,7 +92,9 @@
 
     if ( the_hdr->file_name != fname )
     {
-	char *tmp = (char *)malloc( strlen( fname ) + 1 );
+	char *tmp;
+	overflow_add(strlen(fname), 1);
+	tmp = malloc( strlen( fname ) + 1 );
 	RLE_CHECK_ALLOC( pgmname, tmp, 0 );
 	strcpy( tmp, fname );
 	the_hdr->file_name = tmp;
@@ -152,6 +159,7 @@
     if ( to_hdr->bg_color )
     {
 	int size = to_hdr->ncolors * sizeof(int);
+	overflow2(to_hdr->ncolors, sizeof(int));
 	to_hdr->bg_color = (int *)malloc( size );
 	RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->bg_color, "background color" );
 	memcpy( to_hdr->bg_color, from_hdr->bg_color, size );
@@ -160,7 +168,7 @@
     if ( to_hdr->cmap )
     {
 	int size = to_hdr->ncmap * (1 << to_hdr->cmaplen) * sizeof(rle_map);
-	to_hdr->cmap = (rle_map *)malloc( size );
+	to_hdr->cmap = (rle_map *)malloc3( to_hdr->ncmap, 1<<to_hdr->cmaplen, sizeof(rle_map));
 	RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->cmap, "color map" );
 	memcpy( to_hdr->cmap, from_hdr->cmap, size );
     }
@@ -173,11 +181,16 @@
 	int size = 0;
 	CONST_DECL char **cp;
 	for ( cp=to_hdr->comments; *cp; cp++ )
+	{
+	    overflow_add(size, 1);
 	    size++;		/* Count the comments. */
+ 	}
 	/* Check if there are really any comments. */
 	if ( size )
 	{
+	    overflow_add(size, 1);
 	    size++;		/* Copy the NULL pointer, too. */
+	    overflow2(size, sizeof(char *));
 	    size *= sizeof(char *);
 	    to_hdr->comments = (CONST_DECL char **)malloc( size );
 	    RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->comments, "comments" );
--- netpbm-10.35.64/urt/rle_open_f.c
+++ netpbm-10.35.64/urt/rle_open_f.c
@@ -6,6 +6,9 @@
  * 		University of Michigan
  * Date:	11/14/89
  * Copyright (c) 1990, University of Michigan
+ *
+ *  2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
+ *  Killed of crazy unsafe pipe/compress stuff
  */
 
 #define _XOPEN_SOURCE  /* Make sure fdopen() is in stdio.h */
@@ -188,7 +191,7 @@
 	    
         cp = file_name + strlen( (char*) file_name ) - 2;
         /* Pipe case. */
-        if ( *file_name == '|' )
+        if ( *file_name == '|' && 0 /* BOLLOCKS ARE WE DOING THIS ANY MORE */)
         {
             int thepid;		/* PID from my_popen */
             if ( (fp = my_popen( file_name + 1, mode, &thepid )) == NULL )
@@ -203,9 +206,10 @@
         }
 
         /* Compress case. */
-        else if ( cp > file_name && *cp == '.' && *(cp + 1) == 'Z' )
+        else if ( /* SMOKING SOMETHING */ 0 && cp > file_name && *cp == '.' && *(cp + 1) == 'Z' )
         {
             int thepid;		/* PID from my_popen. */
+            overflow_add(20, strlen(file_name));
             combuf = (char *)malloc( 20 + strlen( file_name ) );
             if ( combuf == NULL )
             {
--- netpbm-10.35.64/urt/rle_putcom.c
+++ netpbm-10.35.64/urt/rle_putcom.c
@@ -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 @@
         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
--- netpbm-10.35.64/urt/scanargs.c
+++ netpbm-10.35.64/urt/scanargs.c
@@ -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 "rle.h"
@@ -65,8 +67,8 @@
 /* 
  * 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 ) )
 
 #if defined(c_plusplus) && !defined(USE_PROTOTYPES)
 #define USE_PROTOTYPES

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File netpbm-security.patch of Package netpbm (Revision 09c163631bea9d31c186066fc2f5455c)

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