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netpbm/netpbm-10.35.74-security.patch

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--- 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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