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Author SHA1 Message Date
Michael Niedermayer
ae2c159b87 avcodec/aacdec_fixed: Fix integer overflow in apply_independent_coupling_fixed() 
I was not able to reproduce this, this fix is based on just the fuzzer log.
Fixes: 4959/clusterfuzz-testcase-minimized-6035350934781952

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 197a4e8fee)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
1d3c141af4 avcodec/cscd: Error out when LZ* decompression fails 
Fixes: Timeout
Fixes: 6304/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CSCD_fuzzer-5754772461191168

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d52be5d4e9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
heimdallr
3f949b7a64 avcodec/imgconvert: Fix loss mask bug in avcodec_find_best_pix_fmt_of_list() 
example:

AVPixelFormat pixFmts[] = { AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA };
int loss = 0;
AVPixelFormat best = avcodec_find_best_pix_fmt_of_list(pixFmts, AV_PIX_FMT_BGRA, 1, &loss);

best is AV_PIX_FMT_RGB24. But AV_PIX_FMT_RGBA is better.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 354b26a394)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
49336482fd avfilter/vf_signature: use av_strlcpy() 
Fixes: out of array access

Found-by: Kira <kira_cxy@foxmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 35eeff30ca)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
15d4dc0da1 avcodec/utvideodec: Set pro flag based on fourcc 
This avoids mixing 8bit variants with pro and 10bit with non pro mode.
Fixes: out of array read
Fixes: poc_03_30.avi

Found-by: GwanYeong Kim <gy741.kim@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 47b7c68ae5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
d79b274acc avcodec/wmalosslessdec: Fix null pointer dereference in decode_frame() 
Fixes: 2018_03_23_poc.wav
Found-by: GwanYeong Kim <gy741.kim@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ea15915b2d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
769cb89738 avcodec/tableprint_vlc: Fix build failure with --enable-hardcoded-tables 
Found-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5c75438b89)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
8a89cce372 avformat/mov: Move +1 in check to avoid hypothetical overflow in add_ctts_entry() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit eb60b9d3aa)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
899d40c17f avcodec/get_bits: Make sure the input bitstream with padding can be addressed 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e529fe7633)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
a89b45b492 avformat/mov: Check STSC and remove invalid entries 
Fixes assertion failure
Fixes: crbug 822547, crbug 822666 and crbug 823009

Affects: aark15sd_9A62E2FA.mp4

Found-by: ClusterFuzz
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9e67447a4f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
5b586f0bc8 avcodec/nuv: rtjpeg with dimensions less than 16 would result in no decoded pixels thus reject it 
Fixes: Timeout
Fixes: 6297/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NUV_fuzzer-4882404863901696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 939440ad1a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
719b9b673c avcodec/nuv: Check for minimum input size for uncomprssed and rtjpeg 
Fixes: Timeout
Fixes: 6297/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NUV_fuzzer-4882404863901696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8ee3265dbe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
02bf1c617c avcodec/wmalosslessdec: Reset num_saved_bits on error path 
Fixes: NULL pointer dereference
Fixes: poc-201803.wav
Found-by: GwanYeong Kim <gy741.kim@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 64c9ce0abc)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
edfe9ae63b avformat/mov: Fix integer overflows related to sample_duration 
Fixes: runtime error: signed integer overflow: -9166684017437101870 + -2495066639299164439 cannot be represented in type

Fixes: Chromium bug 791349

Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2f37082827)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
3a29fda42a avformat/oggparsedaala: Do not adjust AV_NOPTS_VALUE 
Fixes: potential signed integer overflow

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f655ddfb47)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
e61cdbe271 avformat/oggparseogm: Check lb against psize 
No testcase, this was found during code review

Found-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3e7c847aaf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
e0a08c833d avformat/oggparseogm: Fix undefined shift in ogm_packet() 
Fixes: shift exponent 48 is too large for 32-bit type 'int'
Fixes: Chromium bug 786793
Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 010b7b30b7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
8cf7205a72 avformat/avidec: Fix integer overflow in cum_len check 
Fixes: signed integer overflow: 3775922176 * 4278190080 cannot be represented in type 'long'
Fixes: Chromium bug 791237

Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 06e092e781)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
42bd425205 avformat/oggparsetheora: Do not adjust AV_NOPTS_VALUE 
Fixes: Chromium bug 795653
Fixes: signed integer overflow: 9223372036854775807 + 1 cannot be represented in type 'long'
Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 02ecda4aba)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
e89d8ed7cb avformat/utils: Fix integer overflow of fps_first/last_dts 
Fixes: runtime error: signed integer overflow: 7738135736989908991 - -7898362169240453118 cannot be represented in type 'long'
Fixes: Chromium bug 796778
Reported-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1b1362e408)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
fef832c188 avformat/oggdec: Fix metadata memleak on multiple headers 
Fixes: Chromium bug 800123
Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit da069e9c68)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
6daa205cd3 libavformat/oggparsevorbis: Fix memleak on multiple headers 
Fixes: Chromium bug 800123
Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3934aa495d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
e908a595db avcodec/truemotion2rt: Check input buffer size 
Fixes: Timeout
Fixes: 6250/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2RT_fuzzer-5479814011027456

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8b5c29b6c2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
c3e774784b avcodec/g2meet: Check tile dimensions with av_image_check_size2() 
Fixes: OOM
Fixes: 6216/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-4983807968018432

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3981fb8d2a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
4d45d5b606 avcodec/exr: fix invalid shift in unpack_14() 
Fixes: 6154/clusterfuzz-testcase-minimized-5762231061970944
Fixes: runtime error: shift exponent 63 is too large for 32-bit type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 49062a9017)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
5909508e8d avcodec/bintext: sanity check dimensions 
Fixes: Timeout
Fixes: 6277/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XBIN_fuzzer-6047202288861184

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 090c0abff9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
bafb13dc0f avcodec/utvideodec: Check subsample factors 
Fixes: Out of array read
Fixes: heap_poc

Found-by: GwanYeong Kim <gy741.kim@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7414d0bda7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
bcc6d40928 avcodec/smc: Check input packet size 
Fixes: Timeout
Fixes: 6261/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SMC_fuzzer-5811309653262336

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0293663483)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
f3562ee6fc avcodec/cavsdec: Check alpha/beta offset 
Fixes: Integer overflow
Fixes: 6183/clusterfuzz-testcase-minimized-6269224436629504

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ae2eb04648)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
b9d5b1f05d avcodec/diracdec: Fix integer overflow in mv computation 
Fixes: signed integer overflow: -2072 + -2147483646 cannot be represented in type 'int'
Fixes: 6097/clusterfuzz-testcase-minimized-5034145253163008

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 47e65ad63b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
4018d8586f avcodec/h264_parse: Clear invalid chroma weights in ff_h264_pred_weight_table() 
Fixes: 6037/clusterfuzz-testcase-minimized-5030249784934400
Fixes: signed integer overflow: 256 * 16992036 cannot be represented in type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 85c85fffff)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
b172815c3c avcodec/aacdec_templat: Fix integer overflow in apply_ltp() 
Fixes: signed integer overflow: -1625276744 + -1041893960 cannot be represented in type 'int'
Fixes: 5948/clusterfuzz-testcase-minimized-5791479856365568

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 33fe17bdc8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
1a387f1ce6 avcodec/jpeg2000dwt: Fix integer overflows in sr_1d53() 
Fixes: 5918/clusterfuzz-testcase-minimized-5120505435652096

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 793347a545)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
205689ae8a avcodec/diracdec: Use int64 in global mv to prevent overflow 
Fixes: runtime error: signed integer overflow: 361 * -6295541 cannot be represented in type 'int'
Fixes: 5911/clusterfuzz-testcase-minimized-6450382197751808

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cbcbefdc3b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
af5c12c029 avcodec/dxtory: Remove code that corrupts dimensions 
Fixes: Timeout
Fixes: 5796/clusterfuzz-testcase-minimized-5206729085157376

Does someone have a valid sample that triggers this path ?

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3748746a4d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
93a16aebf2 avcodec/dirac_dwt_template: Fix Integer overflow in horizontal_compose_dd137i() 
Fixes: 5894/clusterfuzz-testcase-minimized-5315325420634112
Fixes: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 647fa49495)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
37cd7f3375 avcodec/hevcdec: Check luma/chroma_log2_weight_denom 
Fixes: signed integer overflow: 3 + 2147483647 cannot be represented in type 'int'
Fixes: 5888/clusterfuzz-testcase-minimized-5634701067812864

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f82dd4c09b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
1a4f8de03d avcodec/jpeg2000dec: Use av_image_check_size2() 
Fixes: OOM
Fixes: 5733/clusterfuzz-testcase-minimized-4906757966004224

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 01370b31ac)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
2a85ead5a3 avcodec/vp8: Check for bitstream end before vp7_fade_frame() 
Fixes: Timeout
Fixes: 5653/clusterfuzz-testcase-5497680018014208

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit de675648ce)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
659a23e89f avcodec/exr: Check remaining bits in last get code loop 
Fixes: runtime error: shift exponent -7 is negative
Fixes: 3902/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-6081926122176512

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit dd8351b118)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
519d48c861 avutil/common: Fix integer overflow in av_clip_uint8_c() and av_clip_uint16_c() 
Fixes: 5567/clusterfuzz-testcase-minimized-5769966247739392
Fixes: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab6f571ef7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
878fc42a90 avcodec/h264_cabac: Tighten allowed coeff_abs range 
Fixes: integer overflows
Reported-by: "Xiaohan Wang (王消寒)" <xhwang@chromium.org>

Based on limits in "8.5 Transform coefficient decoding process and picture
construction process prior to deblocking  filter process"

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f26a63c4ee)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Xiaohan Wang
e8fb74c0c9 avcodec/h264_cavlc: Set valid qscale value in ff_h264_decode_mb_cavlc() 
When ff_h264_decode_mb_cavlc() failed due to wrong sl->qscale values,
e.g. dquant out of range, set the qscale to be a valid value before
returning -1 and exiting the function. The qscale value can be used
later e.g. in loop filter.

BUG=806122

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 71f39de2a5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
76a886dae3 avcodec/vp3: Error out on invalid num_coeffs in unpack_vlcs() 
This fixes a hypothetical integer overflow

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f2318aee8c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
f03616d2a4 avcodec/mpeg4videodec: Ignore multiple VOL headers 
Fixes: Ticket7005

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 63a4bdbf3b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
0df3ad79c7 avcodec/vp3: Check eob_run 
Fixes: out of array access
Fixes: 5919/clusterfuzz-testcase-minimized-5859311382167552
Fixes: special case for theora (untested due to lack of sample)

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 570023eab3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
65fc03589f avcodec/pafvideo: Check allocated frame size 
Fixes: OOM
Fixes: 5549/clusterfuzz-testcase-minimized-5390553567985664

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 66acb63028)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
55e6c6b5fe avcodec/scpr: Fix reading a pixel before the first 
Fixes: 5540/clusterfuzz-testcase-minimized-6122458273808384

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0fb33a8289)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Nekopanda
66881cf2b5 avcodec/mpeg2dec: Fix field selection for skipped macroblocks 
For B field pictures, the spec says,

> The prediction shall be made from the field of the same parity as the field being predicted.

I did it.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8b154cb3e9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
838d02fcff avcodec/huffyuvdec: Check input buffer size 
Fixes: Timeout
Fixes: 5487/clusterfuzz-testcase-4696837035393024

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 08c220d26c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00