Fix integer overflows (CVE-2007-4619) by backporting corresponding

fixes from FLAC 1.2.1.

Reviewed by:    miwi
Approved by:    portmgr (linimon)
Security: 	ff65eecb-91e4-11dc-bd6c-0016179b2dd5
This commit is contained in:
Christian Weisgerber 2007-11-13 14:28:29 +00:00
parent e0a9801876
commit 18adb14800
Notes: svn2git 2021-03-31 03:12:20 +00:00
svn path=/head/; revision=202684
33 changed files with 1358 additions and 6 deletions

View File

@ -7,10 +7,13 @@
PORTNAME= flac
PORTVERSION= 1.1.2
PORTREVISION= 1
PORTREVISION= 2
CATEGORIES= audio
MASTER_SITES= ${MASTER_SITE_SOURCEFORGE}
MASTER_SITE_SUBDIR= ${PORTNAME}
MASTER_SITES= ${MASTER_SITE_SOURCEFORGE:S/$/:sf/} \
${MASTER_SITE_LOCAL:S/$/:local/}
MASTER_SITE_SUBDIR= ${PORTNAME}/:sf naddy/:local
DISTFILES= ${EXTRACT_ONLY}:sf flac-alloc.h:local
EXTRACT_ONLY= ${DISTNAME}${EXTRACT_SUFX}
MAINTAINER= naddy@FreeBSD.org
COMMENT= Free lossless audio codec
@ -42,6 +45,9 @@ MAN1= flac.1 metaflac.1
BUILD_DEPENDS= nasm:${PORTSDIR}/devel/nasm
.endif
post-extract:
@${CP} ${DISTDIR}/flac-alloc.h ${WRKSRC}/include/share/alloc.h
# "obj" is magic to our make(1)
post-configure:
@${RM} -rf ${WRKSRC}/obj

View File

@ -1,3 +1,6 @@
MD5 (flac-1.1.2.tar.gz) = 2bfc127cdda02834d0491ab531a20960
SHA256 (flac-1.1.2.tar.gz) = ce4f7d11b3c04a7368c916ca4abc284dd0c0256f461dfb7f07df1ab445e7a5c0
SIZE (flac-1.1.2.tar.gz) = 1516235
MD5 (flac-alloc.h) = 08891390039e2aee9bd4335f784467db
SHA256 (flac-alloc.h) = da40afc663e5b3fe6dccd1a0f1c218b7ec02d3699d72b41d6978696896d7df98
SIZE (flac-alloc.h) = 5697

View File

@ -0,0 +1,66 @@
$FreeBSD$
--- src/libFLAC++/metadata.cpp.orig
+++ src/libFLAC++/metadata.cpp
@@ -33,6 +33,7 @@
#include "FLAC/assert.h"
#include <stdlib.h> // for malloc(), free()
#include <string.h> // for memcpy() etc.
+#include "share/alloc.h"
#ifdef _MSC_VER
// warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
@@ -568,7 +569,7 @@
clear_entry();
- if(0 == (entry_.entry = (FLAC__byte*)malloc(field_length+1))) {
+ if(0 == (entry_.entry = (FLAC__byte*)safe_malloc_add_2op_(field_length, /*+*/1))) {
is_valid_ = false;
}
else {
@@ -617,7 +618,7 @@
clear_field_value();
- if(0 == (field_value_ = (char *)malloc(field_value_length+1))) {
+ if(0 == (field_value_ = (char *)safe_malloc_add_2op_(field_value_length, /*+*/1))) {
is_valid_ = false;
}
else {
@@ -707,7 +708,7 @@
{
clear_entry();
- if(0 == (entry_.entry = (FLAC__byte*)malloc(field_name_length_ + 1 + field_value_length_ + 1))) {
+ if(0 == (entry_.entry = (FLAC__byte*)safe_malloc_add_4op_(field_name_length_, /*+*/1, /*+*/field_value_length_, /*+*/1))) {
is_valid_ = false;
}
else {
@@ -733,7 +734,7 @@
p = (const char *)entry_.entry + entry_.length;
field_name_length_ = p - (const char *)entry_.entry;
- if(0 == (field_name_ = (char *)malloc(field_name_length_ + 1))) { // +1 for the trailing \0
+ if(0 == (field_name_ = (char *)safe_malloc_add_2op_(field_name_length_, /*+*/1))) { // +1 for the trailing \0
is_valid_ = false;
return;
}
@@ -742,14 +743,14 @@
if(entry_.length - field_name_length_ == 0) {
field_value_length_ = 0;
- if(0 == (field_value_ = (char *)malloc(0))) {
+ if(0 == (field_value_ = (char *)safe_malloc_(0))) {
is_valid_ = false;
return;
}
}
else {
field_value_length_ = entry_.length - field_name_length_ - 1;
- if(0 == (field_value_ = (char *)malloc(field_value_length_ + 1))) { // +1 for the trailing \0
+ if(0 == (field_value_ = (char *)safe_malloc_add_2op_(field_value_length_, /*+*/1))) { // +1 for the trailing \0
is_valid_ = false;
return;
}

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@ -0,0 +1,31 @@
$FreeBSD$
--- src/libFLAC/bitbuffer.c.orig
+++ src/libFLAC/bitbuffer.c
@@ -35,6 +35,7 @@
#include "private/bitmath.h"
#include "private/crc.h"
#include "FLAC/assert.h"
+#include "share/alloc.h"
/*
* Along the way you will see two versions of some functions, selected
@@ -193,7 +194,7 @@
if(bb->capacity == new_capacity)
return true;
- new_buffer = (FLAC__blurb*)calloc(new_capacity, sizeof(FLAC__blurb));
+ new_buffer = (FLAC__blurb*)safe_calloc_(new_capacity, sizeof(FLAC__blurb));
if(new_buffer == 0)
return false;
memcpy(new_buffer, bb->buffer, sizeof(FLAC__blurb)*min(bb->blurbs+(bb->bits?1:0), new_capacity));
@@ -425,7 +426,7 @@
{
if(bb->buffer == 0) {
bb->capacity = FLAC__BITBUFFER_DEFAULT_CAPACITY;
- bb->buffer = (FLAC__blurb*)calloc(bb->capacity, sizeof(FLAC__blurb));
+ bb->buffer = (FLAC__blurb*)safe_calloc_(bb->capacity, sizeof(FLAC__blurb));
if(bb->buffer == 0)
return false;
}

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/libFLAC/file_decoder.c.orig
+++ src/libFLAC/file_decoder.c
@@ -43,6 +43,7 @@
#include "FLAC/assert.h"
#include "protected/file_decoder.h"
#include "protected/seekable_stream_decoder.h"
+#include "share/alloc.h"
/***********************************************************************
*
@@ -248,7 +249,7 @@
decoder->private_->filename = 0;
}
if(0 != strcmp(value, "-")) {
- if(0 == (decoder->private_->filename = (char*)malloc(strlen(value)+1))) {
+ if(0 == (decoder->private_->filename = (char*)safe_malloc_add_2op_(strlen(value), /*+*/1))) {
decoder->protected_->state = FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/libFLAC/file_encoder.c.orig
+++ src/libFLAC/file_encoder.c
@@ -34,6 +34,7 @@
#include <string.h> /* for strlen(), strcpy() */
#include "FLAC/assert.h"
#include "protected/file_encoder.h"
+#include "share/alloc.h"
#ifdef max
#undef max
@@ -436,7 +437,7 @@
free(encoder->private_->filename);
encoder->private_->filename = 0;
}
- if(0 == (encoder->private_->filename = (char*)malloc(strlen(value)+1))) {
+ if(0 == (encoder->private_->filename = (char*)safe_malloc_add_2op_(strlen(value), /*+*/1))) {
encoder->protected_->state = FLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR;
return false;
}

View File

@ -0,0 +1,25 @@
$FreeBSD$
--- src/libFLAC/format.c.orig
+++ src/libFLAC/format.c
@@ -38,6 +38,7 @@
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include "share/alloc.h"
#ifdef min
#undef min
@@ -463,9 +464,9 @@
FLAC__ASSERT(object->capacity_by_order > 0 || (0 == object->parameters && 0 == object->raw_bits));
if(object->capacity_by_order < max_partition_order) {
- if(0 == (object->parameters = (unsigned*)realloc(object->parameters, sizeof(unsigned)*(1 << max_partition_order))))
+ if(0 == (object->parameters = (unsigned*)safe_realloc_mul_2op_(object->parameters, sizeof(unsigned), /*times*/(1 << max_partition_order))))
return false;
- if(0 == (object->raw_bits = (unsigned*)realloc(object->raw_bits, sizeof(unsigned)*(1 << max_partition_order))))
+ if(0 == (object->raw_bits = (unsigned*)safe_realloc_mul_2op_(object->raw_bits, sizeof(unsigned), /*times*/(1 << max_partition_order))))
return false;
object->capacity_by_order = max_partition_order;
}

View File

@ -0,0 +1,14 @@
$FreeBSD$
--- src/libFLAC/include/private/md5.h.orig
+++ src/libFLAC/include/private/md5.h
@@ -41,7 +41,7 @@
FLAC__uint32 bytes[2];
FLAC__uint32 in[16];
FLAC__byte *internal_buf;
- unsigned capacity;
+ size_t capacity;
};
FLAC_API void FLAC__MD5Init(struct FLAC__MD5Context *context);

View File

@ -0,0 +1,35 @@
$FreeBSD$
--- src/libFLAC/md5.c.orig
+++ src/libFLAC/md5.c
@@ -31,6 +31,7 @@
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include "share/alloc.h"
#ifndef FLaC__INLINE
#define FLaC__INLINE
@@ -230,13 +231,19 @@
unsigned channel, sample, a_byte;
FLAC__int32 a_word;
FLAC__byte *buf_;
- const unsigned bytes_needed = channels * samples * bytes_per_sample;
+ const size_t bytes_needed = (size_t)channels * (size_t)samples * (size_t)bytes_per_sample;
+
+ /* overflow check */
+ if((size_t)channels > SIZE_MAX / (size_t)bytes_per_sample)
+ return false;
+ if((size_t)channels * (size_t)bytes_per_sample > SIZE_MAX / (size_t)samples)
+ return false;
if(ctx->capacity < bytes_needed) {
FLAC__byte *tmp = (FLAC__byte*)realloc(ctx->internal_buf, bytes_needed);
if(0 == tmp) {
free(ctx->internal_buf);
- if(0 == (ctx->internal_buf = (FLAC__byte*)malloc(bytes_needed)))
+ if(0 == (ctx->internal_buf = (FLAC__byte*)safe_malloc_(bytes_needed)))
return false;
}
ctx->internal_buf = tmp;

View File

@ -0,0 +1,76 @@
$FreeBSD$
--- src/libFLAC/memory.c.orig
+++ src/libFLAC/memory.c
@@ -35,6 +35,7 @@
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include "share/alloc.h"
void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address)
{
@@ -44,10 +45,10 @@
#ifdef FLAC__ALIGN_MALLOC_DATA
/* align on 32-byte (256-bit) boundary */
- x = malloc(bytes+31);
+ x = safe_malloc_add_2op_(bytes, /*+*/31);
*aligned_address = (void*)(((unsigned)x + 31) & -32);
#else
- x = malloc(bytes);
+ x = safe_malloc_(bytes);
*aligned_address = x;
#endif
return x;
@@ -66,6 +67,9 @@
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+ if((size_t)elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+ return false;
+
pu = (FLAC__int32*)FLAC__memory_alloc_aligned(sizeof(FLAC__int32) * elements, &u.pv);
if(0 == pu) {
return false;
@@ -92,6 +96,9 @@
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+ if((size_t)elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+ return false;
+
pu = (FLAC__uint32*)FLAC__memory_alloc_aligned(sizeof(FLAC__uint32) * elements, &u.pv);
if(0 == pu) {
return false;
@@ -118,6 +125,9 @@
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+ if((size_t)elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+ return false;
+
pu = (FLAC__uint64*)FLAC__memory_alloc_aligned(sizeof(FLAC__uint64) * elements, &u.pv);
if(0 == pu) {
return false;
@@ -144,6 +154,9 @@
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+ if((size_t)elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+ return false;
+
pu = (unsigned*)FLAC__memory_alloc_aligned(sizeof(unsigned) * elements, &u.pv);
if(0 == pu) {
return false;
@@ -171,6 +184,9 @@
FLAC__ASSERT(0 != unaligned_pointer);
FLAC__ASSERT(0 != aligned_pointer);
FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+ if((size_t)elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+ return false;
pu = (FLAC__real*)FLAC__memory_alloc_aligned(sizeof(FLAC__real) * elements, &u.pv);
if(0 == pu) {

View File

@ -0,0 +1,67 @@
$FreeBSD$
--- src/libFLAC/metadata_iterators.c.orig
+++ src/libFLAC/metadata_iterators.c
@@ -48,6 +48,7 @@
#include "FLAC/assert.h"
#include "FLAC/file_decoder.h"
+#include "share/alloc.h"
#ifdef max
#undef max
@@ -1928,7 +1929,7 @@
block->data = 0;
}
else {
- if(0 == (block->data = (FLAC__byte*)malloc(block_length)))
+ if(0 == (block->data = (FLAC__byte*)safe_malloc_(block_length)))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
if(read_cb(block->data, 1, block_length, handle) != block_length)
@@ -1949,7 +1950,7 @@
if(block->num_points == 0)
block->points = 0;
- else if(0 == (block->points = (FLAC__StreamMetadata_SeekPoint*)malloc(block->num_points * sizeof(FLAC__StreamMetadata_SeekPoint))))
+ else if(0 == (block->points = (FLAC__StreamMetadata_SeekPoint*)safe_malloc_mul_2op_(block->num_points, /*times*/ sizeof(FLAC__StreamMetadata_SeekPoint))))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
for(i = 0; i < block->num_points; i++) {
@@ -1982,7 +1983,7 @@
entry->entry = 0;
}
else {
- if(0 == (entry->entry = (FLAC__byte*)malloc(entry->length+1)))
+ if(0 == (entry->entry = (FLAC__byte*)safe_malloc_add_2op_(entry->length, /*+*/1)))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
if(read_cb(entry->entry, 1, entry->length, handle) != entry->length)
@@ -2145,7 +2146,7 @@
block->data = 0;
}
else {
- if(0 == (block->data = (FLAC__byte*)malloc(block_length)))
+ if(0 == (block->data = (FLAC__byte*)safe_malloc_(block_length)))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
if(read_cb(block->data, 1, block_length, handle) != block_length)
@@ -2812,7 +2813,7 @@
{
static const char *tempfile_suffix = ".metadata_edit";
if(0 == tempfile_path_prefix) {
- if(0 == (*tempfilename = (char*)malloc(strlen(filename) + strlen(tempfile_suffix) + 1))) {
+ if(0 == (*tempfilename = (char*)safe_malloc_add_3op_(strlen(filename), /*+*/strlen(tempfile_suffix), /*+*/1))) {
*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -2826,7 +2827,7 @@
else
p++;
- if(0 == (*tempfilename = (char*)malloc(strlen(tempfile_path_prefix) + 1 + strlen(p) + strlen(tempfile_suffix) + 1))) {
+ if(0 == (*tempfilename = (char*)safe_malloc_add_4op_(strlen(tempfile_path_prefix), /*+*/strlen(p), /*+*/strlen(tempfile_suffix), /*+*/2))) {
*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
return false;
}

View File

@ -0,0 +1,176 @@
$FreeBSD$
--- src/libFLAC/metadata_object.c.orig
+++ src/libFLAC/metadata_object.c
@@ -35,6 +35,7 @@
#include "private/metadata.h"
#include "FLAC/assert.h"
+#include "share/alloc.h"
/****************************************************************************
@@ -47,7 +48,7 @@
{
if(bytes > 0 && 0 != from) {
FLAC__byte *x;
- if(0 == (x = (FLAC__byte*)malloc(bytes)))
+ if(0 == (x = (FLAC__byte*)safe_malloc_(bytes)))
return false;
memcpy(x, from, bytes);
*to = x;
@@ -62,7 +63,7 @@
static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, unsigned length)
{
- FLAC__byte *x = (FLAC__byte*)realloc(*entry, length+1);
+ FLAC__byte *x = (FLAC__byte*)safe_realloc_add_2op_(*entry, length, /*+*/1);
if(0 != x) {
x[length] = '\0';
*entry = x;
@@ -82,7 +83,7 @@
else {
FLAC__byte *x;
FLAC__ASSERT(from->length > 0);
- if(0 == (x = (FLAC__byte*)malloc(from->length+1)))
+ if(0 == (x = (FLAC__byte*)safe_malloc_add_2op_(from->length, /*+*/1)))
return false;
memcpy(x, from->entry, from->length);
x[from->length] = '\0';
@@ -100,7 +101,7 @@
else {
FLAC__StreamMetadata_CueSheet_Index *x;
FLAC__ASSERT(from->num_indices > 0);
- if(0 == (x = (FLAC__StreamMetadata_CueSheet_Index*)malloc(from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index))))
+ if(0 == (x = (FLAC__StreamMetadata_CueSheet_Index*)safe_malloc_mul_2op_(from->num_indices, /*times*/sizeof(FLAC__StreamMetadata_CueSheet_Index))))
return false;
memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index));
to->indices = x;
@@ -122,7 +123,7 @@
FLAC__ASSERT(num_points > 0);
- object_array = (FLAC__StreamMetadata_SeekPoint*)malloc(num_points * sizeof(FLAC__StreamMetadata_SeekPoint));
+ object_array = (FLAC__StreamMetadata_SeekPoint*)safe_malloc_mul_2op_(num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint));
if(0 != object_array) {
unsigned i;
@@ -155,7 +156,7 @@
{
FLAC__ASSERT(num_comments > 0);
- return (FLAC__StreamMetadata_VorbisComment_Entry*)calloc(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry));
+ return (FLAC__StreamMetadata_VorbisComment_Entry*)safe_calloc_(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry));
}
static void vorbiscomment_entry_array_delete_(FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments)
@@ -294,14 +295,14 @@
{
FLAC__ASSERT(num_indices > 0);
- return (FLAC__StreamMetadata_CueSheet_Index*)calloc(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index));
+ return (FLAC__StreamMetadata_CueSheet_Index*)safe_calloc_(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index));
}
static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks)
{
FLAC__ASSERT(num_tracks > 0);
- return (FLAC__StreamMetadata_CueSheet_Track*)calloc(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track));
+ return (FLAC__StreamMetadata_CueSheet_Track*)safe_calloc_(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track));
}
static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks)
@@ -462,6 +463,10 @@
break;
case FLAC__METADATA_TYPE_SEEKTABLE:
to->data.seek_table.num_points = object->data.seek_table.num_points;
+ if(to->data.seek_table.num_points > SIZE_MAX / sizeof(FLAC__StreamMetadata_SeekPoint)) { /* overflow check */
+ FLAC__metadata_object_delete(to);
+ return 0;
+ }
if(!copy_bytes_((FLAC__byte**)&to->data.seek_table.points, (FLAC__byte*)object->data.seek_table.points, object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint))) {
FLAC__metadata_object_delete(to);
return 0;
@@ -788,8 +793,12 @@
return false;
}
else {
- const unsigned old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
- const unsigned new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
+ const size_t old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
+ const size_t new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
+
+ /* overflow check */
+ if((size_t)new_num_points > SIZE_MAX / sizeof(FLAC__StreamMetadata_SeekPoint))
+ return false;
FLAC__ASSERT(object->data.seek_table.num_points > 0);
@@ -982,8 +991,12 @@
return false;
}
else {
- const unsigned old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
- const unsigned new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
+ const size_t old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
+ const size_t new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
+
+ /* overflow check */
+ if((size_t)new_num_comments > SIZE_MAX / sizeof(FLAC__StreamMetadata_VorbisComment_Entry))
+ return false;
FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
@@ -1131,7 +1144,7 @@
const size_t nn = strlen(field_name);
const size_t nv = strlen(field_value);
entry->length = nn + 1 /*=*/ + nv;
- if(0 == (entry->entry = (FLAC__byte*)malloc(entry->length+1)))
+ if(0 == (entry->entry = (FLAC__byte*)safe_malloc_add_2op_(entry->length, /*+*/1)))
return false;
memcpy(entry->entry, field_name, nn);
entry->entry[nn] = '=';
@@ -1158,9 +1171,9 @@
FLAC__ASSERT(0 != eq);
if(0 == eq)
return false; /* double protection */
- if(0 == (*field_name = (char*)malloc(nn+1)))
+ if(0 == (*field_name = (char*)safe_malloc_add_2op_(nn, /*+*/1)))
return false;
- if(0 == (*field_value = (char*)malloc(nv+1))) {
+ if(0 == (*field_value = (char*)safe_malloc_add_2op_(nv, /*+*/1))) {
free(*field_name);
return false;
}
@@ -1290,8 +1303,12 @@
return false;
}
else {
- const unsigned old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
- const unsigned new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
+ const size_t old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
+ const size_t new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
+
+ /* overflow check */
+ if((size_t)new_num_indices > SIZE_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Index))
+ return false;
FLAC__ASSERT(track->num_indices > 0);
@@ -1374,8 +1391,12 @@
return false;
}
else {
- const unsigned old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
- const unsigned new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
+ const size_t old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
+ const size_t new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
+
+ /* overflow check */
+ if((size_t)new_num_tracks > SIZE_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Track))
+ return false;
FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);

View File

@ -0,0 +1,121 @@
$FreeBSD$
--- src/libFLAC/stream_decoder.c.orig
+++ src/libFLAC/stream_decoder.c
@@ -46,6 +46,7 @@
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include "share/alloc.h"
#ifdef max
#undef max
@@ -214,7 +215,7 @@
}
decoder->private_->metadata_filter_ids_capacity = 16;
- if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
+ if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)safe_malloc_mul_2op_((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), /*times*/decoder->private_->metadata_filter_ids_capacity))) {
FLAC__bitbuffer_delete(decoder->private_->input);
free(decoder->private_);
free(decoder->protected_);
@@ -455,7 +456,7 @@
FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
- if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)realloc(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity * 2)))
+ if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2)))
return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
decoder->private_->metadata_filter_ids_capacity *= 2;
}
@@ -512,7 +513,7 @@
FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
- if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)realloc(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity * 2)))
+ if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2)))
return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
decoder->private_->metadata_filter_ids_capacity *= 2;
}
@@ -804,7 +805,7 @@
* (at negative indices) for alignment purposes; we use 4
* to keep the data well-aligned.
*/
- tmp = (FLAC__int32*)malloc(sizeof(FLAC__int32)*(size+4));
+ tmp = (FLAC__int32*)safe_malloc_mul_2op_(sizeof(FLAC__int32), /*times*/(size+4));
if(tmp == 0) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
@@ -967,7 +968,7 @@
case FLAC__METADATA_TYPE_APPLICATION:
/* remember, we read the ID already */
if(real_length > 0) {
- if(0 == (block.data.application.data = (FLAC__byte*)malloc(real_length))) {
+ if(0 == (block.data.application.data = (FLAC__byte*)safe_malloc_(real_length))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -991,7 +992,7 @@
break;
default:
if(real_length > 0) {
- if(0 == (block.data.unknown.data = (FLAC__byte*)malloc(real_length))) {
+ if(0 == (block.data.unknown.data = (FLAC__byte*)safe_malloc_(real_length))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -1132,7 +1133,7 @@
decoder->private_->seek_table.data.seek_table.num_points = length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
/* use realloc since we may pass through here several times (e.g. after seeking) */
- if(0 == (decoder->private_->seek_table.data.seek_table.points = (FLAC__StreamMetadata_SeekPoint*)realloc(decoder->private_->seek_table.data.seek_table.points, decoder->private_->seek_table.data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint)))) {
+ if(0 == (decoder->private_->seek_table.data.seek_table.points = (FLAC__StreamMetadata_SeekPoint*)safe_realloc_mul_2op_(decoder->private_->seek_table.data.seek_table.points, decoder->private_->seek_table.data.seek_table.num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint)))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -1171,7 +1172,7 @@
if(!FLAC__bitbuffer_read_raw_uint32_little_endian(decoder->private_->input, &obj->vendor_string.length, read_callback_, decoder))
return false; /* the read_callback_ sets the state for us */
if(obj->vendor_string.length > 0) {
- if(0 == (obj->vendor_string.entry = (FLAC__byte*)malloc(obj->vendor_string.length+1))) {
+ if(0 == (obj->vendor_string.entry = (FLAC__byte*)safe_malloc_add_2op_(obj->vendor_string.length, /*+*/1))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -1189,7 +1190,7 @@
/* read comments */
if(obj->num_comments > 0) {
- if(0 == (obj->comments = (FLAC__StreamMetadata_VorbisComment_Entry*)malloc(obj->num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
+ if(0 == (obj->comments = (FLAC__StreamMetadata_VorbisComment_Entry*)safe_malloc_mul_2op_(obj->num_comments, /*times*/sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -1198,7 +1199,7 @@
if(!FLAC__bitbuffer_read_raw_uint32_little_endian(decoder->private_->input, &obj->comments[i].length, read_callback_, decoder))
return false; /* the read_callback_ sets the state for us */
if(obj->comments[i].length > 0) {
- if(0 == (obj->comments[i].entry = (FLAC__byte*)malloc(obj->comments[i].length+1))) {
+ if(0 == (obj->comments[i].entry = (FLAC__byte*)safe_malloc_add_2op_(obj->comments[i].length, /*+*/1))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -1244,7 +1245,7 @@
obj->num_tracks = x;
if(obj->num_tracks > 0) {
- if(0 == (obj->tracks = (FLAC__StreamMetadata_CueSheet_Track*)calloc(obj->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)))) {
+ if(0 == (obj->tracks = (FLAC__StreamMetadata_CueSheet_Track*)safe_calloc_(obj->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -1277,7 +1278,7 @@
track->num_indices = (FLAC__byte)x;
if(track->num_indices > 0) {
- if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)calloc(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)))) {
+ if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)safe_calloc_(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)))) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/libFLAC/stream_encoder.c.orig
+++ src/libFLAC/stream_encoder.c
@@ -50,6 +50,7 @@
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include "share/alloc.h"
#ifdef min
#undef min
@@ -836,7 +837,7 @@
*/
encoder->private_->verify.input_fifo.size = encoder->protected_->blocksize;
for(i = 0; i < encoder->protected_->channels; i++) {
- if(0 == (encoder->private_->verify.input_fifo.data[i] = (FLAC__int32*)malloc(sizeof(FLAC__int32) * encoder->private_->verify.input_fifo.size)))
+ if(0 == (encoder->private_->verify.input_fifo.data[i] = (FLAC__int32*)safe_malloc_mul_2op_(sizeof(FLAC__int32), /*times*/encoder->private_->verify.input_fifo.size)))
return encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
}
encoder->private_->verify.input_fifo.tail = 0;

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/libOggFLAC/file_decoder.c.orig
+++ src/libOggFLAC/file_decoder.c
@@ -43,6 +43,7 @@
#include "FLAC/assert.h"
#include "protected/file_decoder.h"
#include "protected/seekable_stream_decoder.h"
+#include "share/alloc.h"
/***********************************************************************
*
@@ -248,7 +249,7 @@
decoder->private_->filename = 0;
}
if(0 != strcmp(value, "-")) {
- if(0 == (decoder->private_->filename = (char*)malloc(strlen(value)+1))) {
+ if(0 == (decoder->private_->filename = (char*)safe_malloc_add_2op_(strlen(value), /*+*/1))) {
decoder->protected_->state = OggFLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/libOggFLAC/file_encoder.c.orig
+++ src/libOggFLAC/file_encoder.c
@@ -35,6 +35,7 @@
#include "FLAC/assert.h"
#include "OggFLAC/seekable_stream_encoder.h"
#include "protected/file_encoder.h"
+#include "share/alloc.h"
#ifdef max
#undef max
@@ -450,7 +451,7 @@
free(encoder->private_->filename);
encoder->private_->filename = 0;
}
- if(0 == (encoder->private_->filename = (char*)malloc(strlen(value)+1))) {
+ if(0 == (encoder->private_->filename = (char*)safe_malloc_add_2op_(strlen(value), /*+*/1))) {
encoder->protected_->state = OggFLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR;
return false;
}

View File

@ -0,0 +1,31 @@
$FreeBSD$
--- src/libOggFLAC/ogg_helper.c.orig
+++ src/libOggFLAC/ogg_helper.c
@@ -34,6 +34,7 @@
#include "FLAC/assert.h"
#include "private/ogg_helper.h"
#include "protected/seekable_stream_encoder.h"
+#include "share/alloc.h"
static FLAC__bool full_read_(OggFLAC__SeekableStreamEncoder *encoder, FLAC__byte *buffer, unsigned bytes, OggFLAC__SeekableStreamEncoderReadCallback read_callback, void *client_data)
@@ -102,7 +103,7 @@
}
/* allocate space for the page header */
- if(0 == (page->header = (unsigned char *)malloc(OGG_MAX_HEADER_LEN))) {
+ if(0 == (page->header = (unsigned char *)safe_malloc_(OGG_MAX_HEADER_LEN))) {
encoder->protected_->state = OggFLAC__SEEKABLE_STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
return false;
}
@@ -144,7 +145,7 @@
}
/* allocate space for the page body */
- if(0 == (page->body = (unsigned char *)malloc(page->body_len))) {
+ if(0 == (page->body = (unsigned char *)safe_malloc_(page->body_len))) {
encoder->protected_->state = OggFLAC__SEEKABLE_STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
return false;
}

View File

@ -0,0 +1,24 @@
$FreeBSD$
--- src/metaflac/operations.c.orig
+++ src/metaflac/operations.c
@@ -21,6 +21,7 @@
#include "utils.h"
#include "FLAC/assert.h"
#include "FLAC/metadata.h"
+#include "share/alloc.h"
#include "share/grabbag.h"
#include <stdio.h>
#include <stdlib.h>
@@ -430,8 +431,8 @@
}
if(
- 0 == (title_gains = (float*)malloc(sizeof(float) * num_files)) ||
- 0 == (title_peaks = (float*)malloc(sizeof(float) * num_files))
+ 0 == (title_gains = (float*)safe_malloc_mul_2op_(sizeof(float), /*times*/num_files)) ||
+ 0 == (title_peaks = (float*)safe_malloc_mul_2op_(sizeof(float), /*times*/num_files))
)
die("out of memory allocating space for title gains/peaks");

View File

@ -0,0 +1,66 @@
$FreeBSD$
--- src/metaflac/options.c.orig
+++ src/metaflac/options.c
@@ -20,6 +20,7 @@
#include "usage.h"
#include "utils.h"
#include "FLAC/assert.h"
+#include "share/alloc.h"
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
@@ -183,7 +184,7 @@
if(options->num_files > 0) {
unsigned i = 0;
- if(0 == (options->filenames = (char**)malloc(sizeof(char*) * options->num_files)))
+ if(0 == (options->filenames = (char**)safe_malloc_mul_2op_(sizeof(char*), /*times*/options->num_files)))
die("out of memory allocating space for file names list");
while(share__optind < argc)
options->filenames[i++] = local_strdup(argv[share__optind++]);
@@ -661,8 +662,10 @@
}
if(options->ops.capacity <= options->ops.num_operations) {
unsigned original_capacity = options->ops.capacity;
- options->ops.capacity *= 4;
- if(0 == (options->ops.operations = (Operation*)realloc(options->ops.operations, sizeof(Operation) * options->ops.capacity)))
+ if(options->ops.capacity > SIZE_MAX / 2) /* overflow check */
+ die("out of memory allocating space for option list");
+ options->ops.capacity *= 2;
+ if(0 == (options->ops.operations = (Operation*)safe_realloc_mul_2op_(options->ops.operations, sizeof(Operation), /*times*/options->ops.capacity)))
die("out of memory allocating space for option list");
memset(options->ops.operations + original_capacity, 0, sizeof(Operation) * (options->ops.capacity - original_capacity));
}
@@ -680,8 +683,10 @@
}
if(options->args.capacity <= options->args.num_arguments) {
unsigned original_capacity = options->args.capacity;
- options->args.capacity *= 4;
- if(0 == (options->args.arguments = (Argument*)realloc(options->args.arguments, sizeof(Argument) * options->args.capacity)))
+ if(options->args.capacity > SIZE_MAX / 2) /* overflow check */
+ die("out of memory allocating space for option list");
+ options->args.capacity *= 2;
+ if(0 == (options->args.arguments = (Argument*)safe_realloc_mul_2op_(options->args.arguments, sizeof(Argument), /*times*/options->args.capacity)))
die("out of memory allocating space for option list");
memset(options->args.arguments + original_capacity, 0, sizeof(Argument) * (options->args.capacity - original_capacity));
}
@@ -897,7 +902,7 @@
/* make space */
FLAC__ASSERT(out->num_entries > 0);
- if(0 == (out->entries = (unsigned*)malloc(sizeof(unsigned) * out->num_entries)))
+ if(0 == (out->entries = (unsigned*)safe_malloc_mul_2op_(sizeof(unsigned), /*times*/out->num_entries)))
die("out of memory allocating space for option list");
/* load 'em up */
@@ -936,7 +941,7 @@
/* make space */
FLAC__ASSERT(out->num_entries > 0);
- if(0 == (out->entries = (Argument_BlockTypeEntry*)malloc(sizeof(Argument_BlockTypeEntry) * out->num_entries)))
+ if(0 == (out->entries = (Argument_BlockTypeEntry*)safe_malloc_mul_2op_(sizeof(Argument_BlockTypeEntry), /*times*/out->num_entries)))
die("out of memory allocating space for option list");
/* load 'em up */

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/metaflac/utils.c.orig
+++ src/metaflac/utils.c
@@ -18,6 +18,7 @@
#include "utils.h"
#include "FLAC/assert.h"
+#include "share/alloc.h"
#include "share/utf8.h"
#include <ctype.h>
#include <stdarg.h>
@@ -64,7 +65,7 @@
if(nsource == 0)
return;
- *dest = (char*)realloc(*dest, ndest + nsource + 1);
+ *dest = (char*)safe_realloc_add_3op_(*dest, ndest, /*+*/nsource, /*+*/1);
if(0 == *dest)
die("out of memory growing string");
strcpy((*dest)+ndest, source);

View File

@ -0,0 +1,25 @@
$FreeBSD$
--- src/plugin_common/charset.c.orig
+++ src/plugin_common/charset.c
@@ -83,6 +83,8 @@
/* Due to a GLIBC bug, round outbuf_size up to a multiple of 4 */
/* + 1 for nul in case len == 1 */
outsize = ((length + 3) & ~3) + 1;
+ if(outsize < length) /* overflow check */
+ return NULL;
out = (char*)malloc(outsize);
outleft = outsize - 1;
outptr = out;
@@ -95,6 +97,10 @@
{
case E2BIG:
used = outptr - out;
+ if((outsize - 1) * 2 + 1 <= outsize) { /* overflow check */
+ free(out);
+ return NULL;
+ }
outsize = (outsize - 1) * 2 + 1;
out = realloc(out, outsize);
outptr = out + used;

View File

@ -0,0 +1,59 @@
$FreeBSD$
--- src/plugin_common/tags.c.orig
+++ src/plugin_common/tags.c
@@ -23,6 +23,7 @@
#include "tags.h"
#include "FLAC/assert.h"
#include "FLAC/metadata.h"
+#include "share/alloc.h"
static __inline unsigned local__wide_strlen(const FLAC__uint16 *s)
@@ -82,7 +83,7 @@
}
/* allocate */
- out = (FLAC__uint16*)malloc(chars * sizeof(FLAC__uint16));
+ out = (FLAC__uint16*)safe_malloc_mul_2op_(chars, /*times*/sizeof(FLAC__uint16));
if (0 == out) {
FLAC__ASSERT(0);
return 0;
@@ -130,19 +131,23 @@
static char *local__convert_ucs2_to_utf8(const FLAC__uint16 *src, unsigned length)
{
char *out;
- unsigned len = 0;
+ unsigned len = 0, n;
FLAC__ASSERT(0 != src);
/* calculate length */
{
unsigned i;
- for (i = 0; i < length; i++)
- len += local__ucs2len(src[i]);
+ for (i = 0; i < length; i++) {
+ n += local__ucs2len(src[i]);
+ if(len + n < len) /* overflow check */
+ return 0;
+ len += n;
+ }
}
/* allocate */
- out = (char*)malloc(len * sizeof(char));
+ out = (char*)safe_malloc_mul_2op_(len, /*times*/sizeof(char));
if (0 == out)
return 0;
@@ -265,7 +270,7 @@
const size_t value_len = strlen(value);
const size_t separator_len = strlen(separator);
FLAC__byte *new_entry;
- if(0 == (new_entry = (FLAC__byte*)realloc(entry->entry, entry->length + value_len + separator_len + 1)))
+ if(0 == (new_entry = (FLAC__byte*)safe_realloc_add_4op_(entry->entry, entry->length, /*+*/value_len, /*+*/separator_len, /*+*/1)))
return false;
memcpy(new_entry+entry->length, separator, separator_len);
entry->length += separator_len;

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/share/utf8/charset.c.orig
+++ src/share/utf8/charset.c
@@ -35,6 +35,7 @@
#include <stdlib.h>
+#include "share/alloc.h"
#include "charset.h"
#include "charmaps.h"
@@ -492,7 +493,7 @@
if (!charset1 || !charset2 )
return -1;
- tobuf = (char *)malloc(fromlen * charset2->max + 1);
+ tobuf = (char *)safe_malloc_mul2add_(fromlen, /*times*/charset2->max, /*+*/1);
if (!tobuf)
return -2;

View File

@ -0,0 +1,49 @@
$FreeBSD$
--- src/share/utf8/iconvert.c.orig
+++ src/share/utf8/iconvert.c
@@ -27,6 +27,7 @@
#include <iconv.h>
#include <stdlib.h>
#include <string.h>
+#include "share/alloc.h"
/*
* Convert data from one encoding to another. Return:
@@ -79,7 +80,7 @@
* This is deliberately not a config option as people often
* change their iconv library without rebuilding applications.
*/
- tocode1 = (char *)malloc(strlen(tocode) + 11);
+ tocode1 = (char *)safe_malloc_add_2op_(strlen(tocode), /*+*/11);
if (!tocode1)
goto fail;
@@ -117,6 +118,8 @@
break;
if (obl < 6) {
/* Enlarge the buffer */
+ if(utflen*2 < utflen) /* overflow check */
+ goto fail;
utflen *= 2;
newbuf = (char *)realloc(utfbuf, utflen);
if (!newbuf)
@@ -143,7 +146,7 @@
iconv_close(cd1);
return ret;
}
- newbuf = (char *)realloc(utfbuf, (ob - utfbuf) + 1);
+ newbuf = (char *)safe_realloc_add_2op_(utfbuf, (ob - utfbuf), /*+*/1);
if (!newbuf)
goto fail;
ob = (ob - utfbuf) + newbuf;
@@ -194,7 +197,7 @@
outlen += ob - tbuf;
/* Convert from UTF-8 for real */
- outbuf = (char *)malloc(outlen + 1);
+ outbuf = (char *)safe_malloc_add_2op_(outlen, /*+*/1);
if (!outbuf)
goto fail;
ib = utfbuf;

View File

@ -0,0 +1,72 @@
$FreeBSD$
--- src/share/utf8/utf8.c.orig
+++ src/share/utf8/utf8.c
@@ -28,6 +28,7 @@
#include <config.h>
#endif
+#include "share/alloc.h"
#include "utf8.h"
#include "charset.h"
@@ -57,10 +58,13 @@
} else {
size += 3;
}
+ if(size+n < size) /* overflow check */
+ return NULL;
+ size += n;
c = unicode[index++];
}
- out = malloc(size + 1);
+ out = safe_malloc_add_2op_(size, /*+*/1);
if (out == NULL)
return NULL;
index = 0;
@@ -101,11 +105,15 @@
} else {
index += 1;
}
+ if(size + 1 == 0) /* overflow check */
+ return NULL;
size += 1;
c = utf8[index++];
}
- out = malloc((size + 1) * sizeof(wchar_t));
+ if(size + 1 == 0) /* overflow check */
+ return NULL;
+ out = safe_malloc_mul_2op_((size + 1), /*times*/sizeof(wchar_t));
if (out == NULL)
return NULL;
index = 0;
@@ -147,7 +155,7 @@
return -1;
}
- unicode = calloc(wchars + 1, sizeof(unsigned short));
+ unicode = safe_calloc_(wchars + 1, sizeof(unsigned short));
if(unicode == NULL)
{
fprintf(stderr, "Out of memory processing string to UTF8\n");
@@ -197,7 +205,7 @@
return -1;
}
- *to = calloc(chars + 1, sizeof(unsigned char));
+ *to = safe_calloc_(chars + 1, sizeof(unsigned char));
if(*to == NULL)
{
fprintf(stderr, "Out of memory processing string to local charset\n");
@@ -285,7 +293,7 @@
if (ret != -1)
return ret;
- s = malloc(fromlen + 1);
+ s = safe_malloc_add_2op_(fromlen, /*+*/1);
if (!s)
return -1;
strcpy(s, from);

View File

@ -7,11 +7,14 @@
PORTNAME= xmms-flac
PORTVERSION= 1.1.2
PORTREVISION= 2
PORTREVISION= 3
CATEGORIES= audio
MASTER_SITES= ${MASTER_SITE_SOURCEFORGE}
MASTER_SITE_SUBDIR= flac
MASTER_SITES= ${MASTER_SITE_SOURCEFORGE:S/$/:sf/} \
${MASTER_SITE_LOCAL:S/$/:local/}
MASTER_SITE_SUBDIR= flac/:sf naddy/:local
DISTNAME= flac-${PORTVERSION}
DISTFILES= ${EXTRACT_ONLY}:sf flac-alloc.h:local
EXTRACT_ONLY= ${DISTNAME}${EXTRACT_SUFX}
MAINTAINER= naddy@FreeBSD.org
COMMENT= XMMS input plugin for playing FLAC files
@ -28,6 +31,9 @@ MAKE_ARGS= LIBTOOL="${LIBTOOL} --tag=disable-static"
MAKE_ENV= MAKEOBJDIR=/nonexistent # ignore ${WRKSRC}/obj
MAKEFILE= ${FILESDIR}/Makefile
post-extract:
@${CP} ${DISTDIR}/flac-alloc.h ${WRKSRC}/include/share/alloc.h
# XXX
post-install:
${RM} ${PREFIX}/lib/xmms/Input/libxmms-flac.la

View File

@ -1,3 +1,6 @@
MD5 (flac-1.1.2.tar.gz) = 2bfc127cdda02834d0491ab531a20960
SHA256 (flac-1.1.2.tar.gz) = ce4f7d11b3c04a7368c916ca4abc284dd0c0256f461dfb7f07df1ab445e7a5c0
SIZE (flac-1.1.2.tar.gz) = 1516235
MD5 (flac-alloc.h) = 08891390039e2aee9bd4335f784467db
SHA256 (flac-alloc.h) = da40afc663e5b3fe6dccd1a0f1c218b7ec02d3699d72b41d6978696896d7df98
SIZE (flac-alloc.h) = 5697

View File

@ -0,0 +1,25 @@
$FreeBSD$
--- src/plugin_common/charset.c.orig
+++ src/plugin_common/charset.c
@@ -83,6 +83,8 @@
/* Due to a GLIBC bug, round outbuf_size up to a multiple of 4 */
/* + 1 for nul in case len == 1 */
outsize = ((length + 3) & ~3) + 1;
+ if(outsize < length) /* overflow check */
+ return NULL;
out = (char*)malloc(outsize);
outleft = outsize - 1;
outptr = out;
@@ -95,6 +97,10 @@
{
case E2BIG:
used = outptr - out;
+ if((outsize - 1) * 2 + 1 <= outsize) { /* overflow check */
+ free(out);
+ return NULL;
+ }
outsize = (outsize - 1) * 2 + 1;
out = realloc(out, outsize);
outptr = out + used;

View File

@ -0,0 +1,59 @@
$FreeBSD$
--- src/plugin_common/tags.c.orig
+++ src/plugin_common/tags.c
@@ -23,6 +23,7 @@
#include "tags.h"
#include "FLAC/assert.h"
#include "FLAC/metadata.h"
+#include "share/alloc.h"
static __inline unsigned local__wide_strlen(const FLAC__uint16 *s)
@@ -82,7 +83,7 @@
}
/* allocate */
- out = (FLAC__uint16*)malloc(chars * sizeof(FLAC__uint16));
+ out = (FLAC__uint16*)safe_malloc_mul_2op_(chars, /*times*/sizeof(FLAC__uint16));
if (0 == out) {
FLAC__ASSERT(0);
return 0;
@@ -130,19 +131,23 @@
static char *local__convert_ucs2_to_utf8(const FLAC__uint16 *src, unsigned length)
{
char *out;
- unsigned len = 0;
+ unsigned len = 0, n;
FLAC__ASSERT(0 != src);
/* calculate length */
{
unsigned i;
- for (i = 0; i < length; i++)
- len += local__ucs2len(src[i]);
+ for (i = 0; i < length; i++) {
+ n += local__ucs2len(src[i]);
+ if(len + n < len) /* overflow check */
+ return 0;
+ len += n;
+ }
}
/* allocate */
- out = (char*)malloc(len * sizeof(char));
+ out = (char*)safe_malloc_mul_2op_(len, /*times*/sizeof(char));
if (0 == out)
return 0;
@@ -265,7 +270,7 @@
const size_t value_len = strlen(value);
const size_t separator_len = strlen(separator);
FLAC__byte *new_entry;
- if(0 == (new_entry = (FLAC__byte*)realloc(entry->entry, entry->length + value_len + separator_len + 1)))
+ if(0 == (new_entry = (FLAC__byte*)safe_realloc_add_4op_(entry->entry, entry->length, /*+*/value_len, /*+*/separator_len, /*+*/1)))
return false;
memcpy(new_entry+entry->length, separator, separator_len);
entry->length += separator_len;

View File

@ -16,3 +16,19 @@ $FreeBSD$
xmms_cfg_read_int(cfg, "flac", "stream.http_buffer_size", &flac_cfg.stream.http_buffer_size);
xmms_cfg_read_int(cfg, "flac", "stream.http_prebuffer", &flac_cfg.stream.http_prebuffer);
xmms_cfg_read_boolean(cfg, "flac", "stream.use_proxy", &flac_cfg.stream.use_proxy);
@@ -425,8 +431,13 @@
if(title) {
if (source_to_decoder_type (filename) == DECODER_FILE) {
static const char *errtitle = "Invalid FLAC File: ";
- *title = g_malloc(strlen(errtitle) + 1 + strlen(filename) + 1 + 1);
- sprintf(*title, "%s\"%s\"", errtitle, filename);
+ if(strlen(errtitle) + 1 + strlen(filename) + 1 + 1 < strlen(filename)) { /* overflow check */
+ *title = NULL;
+ }
+ else {
+ *title = g_malloc(strlen(errtitle) + 1 + strlen(filename) + 1 + 1);
+ sprintf(*title, "%s\"%s\"", errtitle, filename);
+ }
} else {
*title = NULL;
}

View File

@ -0,0 +1,22 @@
$FreeBSD$
--- src/share/utf8/charset.c.orig
+++ src/share/utf8/charset.c
@@ -35,6 +35,7 @@
#include <stdlib.h>
+#include "share/alloc.h"
#include "charset.h"
#include "charmaps.h"
@@ -492,7 +493,7 @@
if (!charset1 || !charset2 )
return -1;
- tobuf = (char *)malloc(fromlen * charset2->max + 1);
+ tobuf = (char *)safe_malloc_mul2add_(fromlen, /*times*/charset2->max, /*+*/1);
if (!tobuf)
return -2;

View File

@ -0,0 +1,49 @@
$FreeBSD$
--- src/share/utf8/iconvert.c.orig
+++ src/share/utf8/iconvert.c
@@ -27,6 +27,7 @@
#include <iconv.h>
#include <stdlib.h>
#include <string.h>
+#include "share/alloc.h"
/*
* Convert data from one encoding to another. Return:
@@ -79,7 +80,7 @@
* This is deliberately not a config option as people often
* change their iconv library without rebuilding applications.
*/
- tocode1 = (char *)malloc(strlen(tocode) + 11);
+ tocode1 = (char *)safe_malloc_add_2op_(strlen(tocode), /*+*/11);
if (!tocode1)
goto fail;
@@ -117,6 +118,8 @@
break;
if (obl < 6) {
/* Enlarge the buffer */
+ if(utflen*2 < utflen) /* overflow check */
+ goto fail;
utflen *= 2;
newbuf = (char *)realloc(utfbuf, utflen);
if (!newbuf)
@@ -143,7 +146,7 @@
iconv_close(cd1);
return ret;
}
- newbuf = (char *)realloc(utfbuf, (ob - utfbuf) + 1);
+ newbuf = (char *)safe_realloc_add_2op_(utfbuf, (ob - utfbuf), /*+*/1);
if (!newbuf)
goto fail;
ob = (ob - utfbuf) + newbuf;
@@ -194,7 +197,7 @@
outlen += ob - tbuf;
/* Convert from UTF-8 for real */
- outbuf = (char *)malloc(outlen + 1);
+ outbuf = (char *)safe_malloc_add_2op_(outlen, /*+*/1);
if (!outbuf)
goto fail;
ib = utfbuf;

View File

@ -0,0 +1,72 @@
$FreeBSD$
--- src/share/utf8/utf8.c.orig
+++ src/share/utf8/utf8.c
@@ -28,6 +28,7 @@
#include <config.h>
#endif
+#include "share/alloc.h"
#include "utf8.h"
#include "charset.h"
@@ -57,10 +58,13 @@
} else {
size += 3;
}
+ if(size+n < size) /* overflow check */
+ return NULL;
+ size += n;
c = unicode[index++];
}
- out = malloc(size + 1);
+ out = safe_malloc_add_2op_(size, /*+*/1);
if (out == NULL)
return NULL;
index = 0;
@@ -101,11 +105,15 @@
} else {
index += 1;
}
+ if(size + 1 == 0) /* overflow check */
+ return NULL;
size += 1;
c = utf8[index++];
}
- out = malloc((size + 1) * sizeof(wchar_t));
+ if(size + 1 == 0) /* overflow check */
+ return NULL;
+ out = safe_malloc_mul_2op_((size + 1), /*times*/sizeof(wchar_t));
if (out == NULL)
return NULL;
index = 0;
@@ -147,7 +155,7 @@
return -1;
}
- unicode = calloc(wchars + 1, sizeof(unsigned short));
+ unicode = safe_calloc_(wchars + 1, sizeof(unsigned short));
if(unicode == NULL)
{
fprintf(stderr, "Out of memory processing string to UTF8\n");
@@ -197,7 +205,7 @@
return -1;
}
- *to = calloc(chars + 1, sizeof(unsigned char));
+ *to = safe_calloc_(chars + 1, sizeof(unsigned char));
if(*to == NULL)
{
fprintf(stderr, "Out of memory processing string to local charset\n");
@@ -285,7 +293,7 @@
if (ret != -1)
return ret;
- s = malloc(fromlen + 1);
+ s = safe_malloc_add_2op_(fromlen, /*+*/1);
if (!s)
return -1;
strcpy(s, from);