Xi Wang 22c27e1f4a lzo: fix overflow checking in copy_backptr() ...

The check `src > dst' in the form `&c->out[-back] > c->out' invokes
pointer overflow, which is undefined behavior in C.

Remove the check.  Also replace `&c->out[-back] < c->out_start' with
a safe form `c->out - c->out_start < back' to avoid overflow.

CC: libav-stable@libav.org

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

(cherry picked from commit ca6c3f2c53)

2013-03-15 13:21:15 +01:00

..

arm

arm: Fall back to runtime cpu feature detection via /proc/cpuinfo

2013-02-14 10:39:23 +02:00

avr32

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

bfin

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

mips

mips: intreadwrite: fix inline asm for gcc 4.8

2012-05-09 13:45:22 +01:00

ppc

float_dsp: ppc: add a separate header for Altivec function prototypes

2012-06-08 14:52:01 -04:00

sh4

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

tomi

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

x86

lavc: merge latest x86inc.asm fixes with x264

2012-12-19 07:27:33 +01:00

adler32.c

tests/examples: Mark some variables only used within their files as static.

2011-12-08 01:01:00 +01:00

adler32.h

doxy: provide a start page and document libavutil

2011-11-22 17:16:02 +01:00

aes.c

avutil: Add functions for allocating opaque contexts for algorithms

2012-10-11 23:35:27 +03:00

aes.h

avutil: Add functions for allocating opaque contexts for algorithms

2012-10-11 23:35:27 +03:00

attributes.h

attributes: add av_noreturn

2012-07-03 17:26:51 +02:00

audio_fifo.c

Don't include common.h from avutil.h

2012-08-15 22:32:06 +03:00

audio_fifo.h

avutil: add audio fifo buffer

2012-04-20 09:43:11 -04:00

audioconvert.h

lavu: rename audioconvert.* to channel_layout.* and deprecate audioconvert.h

2012-11-11 13:35:12 -05:00

avassert.h

multiple inclusion guard cleanup

2011-05-21 13:48:10 +02:00

avstring.c

avstring: add av_basename and av_dirname

2012-12-29 17:26:22 +01:00

avstring.h

avstring: add av_basename and av_dirname

2012-12-29 17:26:22 +01:00

avutil.h

lavr: add general API usage doxy

2012-10-29 20:05:41 +01:00

base64.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

base64.h

doxy: provide a start page and document libavutil

2011-11-22 17:16:02 +01:00

blowfish.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

blowfish.h

Add Blowfish encryption support in libavutil

2012-07-04 15:10:57 +03:00

bswap.h

bswap: make generic implementation more compiler-friendly

2011-12-12 12:14:14 +00:00

channel_layout.c

lavu: rename audioconvert.* to channel_layout.* and deprecate audioconvert.h

2012-11-11 13:35:12 -05:00

channel_layout.h

lavu: rename audioconvert.* to channel_layout.* and deprecate audioconvert.h

2012-11-11 13:35:12 -05:00

colorspace.h

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

common.h

avutil: change GET_UTF8 to not use av_log2()

2012-11-14 13:50:42 +00:00

cpu.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

cpu.h

cpu.h: define AV_CPU_FLAG_MMX2 for libavutil major 52

2012-11-16 15:04:48 +01:00

crc_data.h

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

crc.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

crc.h

crc: av_crc() parameter names should match between .c, .h and doxygen

2012-11-16 10:38:23 +01:00

des.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

des.h

des: add possibility to calculate DES-CBC-MAC with small buffer

2011-09-21 08:28:20 +02:00

dict.c

Don't include common.h from avutil.h

2012-08-15 22:32:06 +03:00

dict.h

Give all anonymously typedeffed structs in headers a name

2012-10-06 09:27:11 +02:00

error.c

avutil: Add AVERROR_EXPERIMENTAL

2012-10-21 22:38:21 +02:00

error.h

avutil: Add AVERROR_EXPERIMENTAL

2012-10-21 22:38:21 +02:00

eval.c

eval: treat dB as decibels instead of decibytes

2012-12-05 11:23:36 -05:00

eval.h

Fix a bunch of common typos.

2011-12-11 00:32:25 +01:00

fifo.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

fifo.h

lavu: remove disabled FF_API_AV_FIFO_PEEK cruft

2012-10-23 07:33:05 +02:00

file.c

avutil: Include io.h with a separate condition from MapViewOfFile

2012-11-29 18:19:57 +02:00

file.h

Don't include common.h from avutil.h

2012-08-15 22:32:06 +03:00

float_dsp.c

float_dsp: add vector_dmul_scalar() to multiply a vector of doubles

2012-12-05 11:23:36 -05:00

float_dsp.h

float_dsp: add vector_dmul_scalar() to multiply a vector of doubles

2012-12-05 11:23:36 -05:00

imgutils.c

avutil: Rename ff_set_systematic_pal2() ---> avpriv_set_systematic_pal2()

2012-10-13 19:59:20 +02:00

imgutils.h

avutil: Rename ff_set_systematic_pal2() ---> avpriv_set_systematic_pal2()

2012-10-13 19:59:20 +02:00

internal.h

remove #defines to prevent use of discouraged external functions

2012-11-25 23:02:04 +01:00

intfloat_readwrite.c

cosmetics: Remove extra newlines at EOF

2012-01-27 17:19:09 -08:00

intfloat_readwrite.h

lavu: replace int/float punning functions

2011-12-11 18:47:19 +00:00

intfloat.h

intfloat: Don't use designated initializers in the public headers

2012-07-02 14:05:40 +03:00

intmath.c

lavu: add av_ctz() for trailing zero bit count

2012-11-05 15:32:29 -05:00

intmath.h

lavu: add av_ctz() for trailing zero bit count

2012-11-05 15:32:29 -05:00

intreadwrite.h

intreadwrite: Add AV_COPYxxU macros for copying to/from unaligned addresses

2012-10-23 16:54:08 +02:00

lfg.c

avformat: Remove non-compiling and/or silly commented-out printf/av_log statements

2012-10-01 10:24:28 +02:00

lfg.h

Give all anonymously typedeffed structs in headers a name

2012-10-06 09:27:11 +02:00

libavutil.v

Revert "avutil: make some tables visible again"

2012-10-23 07:33:05 +02:00

libm.h

libm: add fallbacks for various single-precision functions

2012-10-23 12:00:21 +01:00

lls.c

lls: use av_lfg instead of rand() in test program

2011-07-11 21:09:27 +01:00

lls.h

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

log2_tab.c

avutil: Duplicate ff_log2_tab instead of sharing it across libs

2012-10-12 20:39:17 +02:00

log.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

log.h

misc typo, style and wording fixes

2012-12-18 13:36:51 +01:00

lzo.c

lzo: fix overflow checking in copy_backptr()

2013-03-15 13:21:15 +01:00

lzo.h

avutil: Move memcpy_backptr() to mem.c

2012-10-25 11:36:57 +02:00

Makefile

lavu: rename audioconvert.* to channel_layout.* and deprecate audioconvert.h

2012-11-11 13:35:12 -05:00

mathematics.c

Move av_reverse table to libavcodec

2012-10-12 20:39:18 +02:00

mathematics.h

mathematics: Don't use division by zero in NAN/INFINITY macros

2012-07-01 19:06:13 +03:00

md5.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

md5.h

avutil: Add functions for allocating opaque contexts for algorithms

2012-10-11 23:35:27 +03:00

mem.c

av_memcpy_backptr: avoid an infinite loop for back = 0

2013-02-23 14:40:30 +01:00

mem.h

avutil: Move memcpy_backptr() to mem.c

2012-10-25 11:36:57 +02:00

old_pix_fmts.h

pixfmt: add AV_ prefixes to PIX_FMT_*

2012-10-08 07:12:16 +02:00

opt.c

Drop unnecessary 'l' length modifier when printfing double values.

2012-12-31 11:20:45 +01:00

opt.h

lavu: remove disabled avoptions cruft

2012-10-23 07:33:05 +02:00

parseutils.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

parseutils.h

doxygen: misc consistency, spelling and wording fixes

2011-12-12 23:06:23 +01:00

pixdesc.c

pixdesc: fix yuva 10bit bit depth

2012-12-05 17:52:55 +01:00

pixdesc.h

pixdesc: add PIX_FMT_ALPHA flag

2012-11-20 12:45:58 +01:00

pixfmt.h

misc typo, style and wording fixes

2012-12-18 13:36:51 +01:00

random_seed.c

random_seed: Support using CryptGenRandom on windows

2012-10-11 18:49:34 +03:00

random_seed.h

doxy: provide a start page and document libavutil

2011-11-22 17:16:02 +01:00

rational.c

libavutil: Remove pointless rational test program.

2012-03-26 13:00:09 +02:00

rational.h

rational: add av_inv_q() returning the inverse of an AVRational

2012-08-05 17:46:41 +01:00

rc4.c

Replace FFmpeg with Libav in licence headers

2011-03-19 13:33:20 +00:00

rc4.h

doxygen: Consistently use '@' instead of '\' for Doxygen markup.

2011-06-24 00:37:49 +02:00

samplefmt.c

lavu: remove disabled FF_API_GET_BITS_PER_SAMPLE_FMT cruft

2012-10-23 07:33:05 +02:00

samplefmt.h

lavu: remove disabled FF_API_GET_BITS_PER_SAMPLE_FMT cruft

2012-10-23 07:33:05 +02:00

sha.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

sha.h

avutil: Add functions for allocating opaque contexts for algorithms

2012-10-11 23:35:27 +03:00

time.c

lavu: add av_usleep() function

2012-06-22 17:15:18 +01:00

time.h

lavu: add av_usleep() function

2012-06-22 17:15:18 +01:00

timer.h

Don't include common.h from avutil.h

2012-08-15 22:32:06 +03:00

tree.c

Use the new aes/md5/sha/tree allocation functions

2012-10-11 23:35:28 +03:00

tree.h

avutil: Add functions for allocating opaque contexts for algorithms

2012-10-11 23:35:27 +03:00

utils.c

lavc: deprecate FF_*_TYPE macros in favor of AV_PICTURE_TYPE_* enums

2011-04-26 08:38:57 +02:00

version.h

avstring: add av_basename and av_dirname

2012-12-29 17:26:22 +01:00

xtea.c

Remove pointless #undefs of previously forbidden functions.

2012-12-04 21:40:22 +01:00

xtea.h

doxygen: Fix function parameter names to match the code

2012-08-09 20:05:55 +02:00