Commit graph

40403 commits

Author SHA1 Message Date
Michael Niedermayer
1061a2e2ef avcodec/h264_cavlc: Check mb_skip_run
Fixes: 10300/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-6292205497483264
Fixes: signed integer overflow: -2147483648 - 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 f72b9904fe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-23 01:00:10 +02:00
Michael Niedermayer
65b0caf47d avcodec/ra144: Fix integer overflow in add_wav()
Fixes: signed integer overflow: -2144033225 + -5208934 cannot be represented in type 'int'
Fixes: 10633/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RA_144_fuzzer-5679133791617024

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 c6282141cb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-23 01:00:10 +02:00
Aman Gupta
380bc8585c Revert "avcodec/cbs_h264: silence errors about end_of_seq nalus"
This reverts commit aec3daa8b4.

This is an incomplete fix, and did not quality for a backport.
2018-10-18 09:41:13 -07:00
Aman Gupta
8791a1e7de avcodec/cbs: ensure user_data is padded for GBC parsing
Fixes crash noticed in the cbs_userdata patchset.

====ERROR: AddressSanitizer: heap-buffer-overflow on address 0x609000026c89 at pc 0x00010725d37b bp 0x7ffeea04e750 sp 0x7ffeea04e748
READ of size 4 at 0x609000026c89 thread T0
    #0 0x10725d37a in ff_cbs_read_unsigned get_bits.h:274
    #1 0x1072d2767 in ff_cbs_read_a53_user_data cbs_misc_syntax_template.c:119
    #2 0x1078251a7 in h264_metadata_filter h264_metadata_bsf.c:595
    #3 0x105c1321d in output_packet ffmpeg.c:853

0x609000026c89 is located 1 bytes to the right of 8-byte region [0x609000026c80,0x609000026c88)
allocated by thread T0 here:
    #0 0x10aef08d7 in wrap_posix_memalign (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x578d7)
    #1 0x10aca95e6 in av_malloc mem.c:87
    #2 0x10ac545fe in av_buffer_allocz buffer.c:72
    #3 0x107263b27 in cbs_h264_read_nal_unit cbs_h264_syntax_template.c:722
    #4 0x10725b688 in cbs_read_fragment_content cbs.c:155

Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit 41ed2c3849)
2018-10-16 11:54:52 -07:00
Aman Gupta
70d0d83d4d avcodec/cbs: fix crash in sei_pic_timestamp
Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit b6c3a02740)
2018-10-16 11:54:42 -07:00
Aman Gupta
aec3daa8b4 avcodec/cbs_h264: silence errors about end_of_seq nalus
[ffmpeg] AVBSFContext: Decomposition unimplemented for unit 4 (type 10).

Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit 64c50c0e97)
2018-10-16 11:54:39 -07:00
Timo Rothenpieler
7b23dd0f41 avcodec/cuviddec: properly take deinterlacing and display delay into account for buffer_full check
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
2018-10-14 18:14:18 +02:00
James Almer
967604fecf avcodec/h2645_parse: skip NALUs with no content after stripping all the trailing zeros
The GetBitContext is effectively empty in them.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 9a09f4c54a)
2018-10-11 22:31:17 -07:00
Michael Niedermayer
7f521fae2b avcodec/unary: Improve get_unary() docs
Found-by: kierank
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ad89e203bf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
531ebb7506 avcodec/gdv: Replace divisions by shifts in rescale()
Divisions tend to be slower than shifts unless the compiler optimizes them out.
And some of these are in inner loops.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b90d8cc746)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
d7973cf03d avcodec/ac3dec: Fix shift signedness in mask creation
Fixes: 9924/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EAC3_fuzzer-5473421772193792
Fixes: left shift of 1 by 63 places cannot be represented in type 'long long'

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 148a21611d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
45fb50b4bc avcodec/eac3dec: Check that channel_map does not contain more than EAC3_MAX_CHANNELS
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fe315feab5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
1a05e6ced3 avcodec/dvdsubdec: Sanity check len in decode_rle()
Fixes: Timeout
Fixes: 9778/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DVDSUB_fuzzer-5186007132536832

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 e7b023e1db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
5a4234de5e avcodec/mpeg4videodec: Fix undefined shift in get_amv()
Fixes: runtime error: shift exponent -1 is negative
Fixes: 9938/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-5653783529914368

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 c88afa44c4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
47f608a7e1 avcodec/zmbv: Check that the decompressed data size is correct
This checks the value exactly for intra frames and checks it against a
minimum for inter frames as they can be variable.

Fixes: Timeout
Fixes: 10182/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ZMBV_fuzzer-6245951174344704

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 e33b28cc79)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
5af88171e7 avcodec/zmbv: Update decomp_len in raw frames
decomp_len is used in raw frames, so it should not be left at the value from
whatever was decoded previously (which may be any other frame)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3d201b83cd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
6d2b2ee3a5 avcodec/shorten: Fix bitstream end check in read_header()
Fixes: Timeout
Fixes: 9961/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-5687856176562176

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 28b80c2d52)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
9afcf994f6 avcodec/dvdsubdec: Avoid branch in decode_run_8bit()
Speed improvment 35.5 sec -> 34.7sec

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 71bf033050)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
7da37aa980 avcodec/h264_refs: Document last if() in ff_h264_execute_ref_pic_marking()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 697984b9db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
318b13a5ad avcodec/ra144: Fix undefined integer overflow in add_wav()
Fixes: signed integer overflow: -26884 * 91439 cannot be represented in type 'int'
Fixes: 9687/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RA_144_fuzzer-4995588121690112

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 93a203662f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
17a5df4ab8 avcodec/indeo4: Check dimensions in decode_pic_hdr()
Fixes: Timeout
Fixes: 9654/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO4_fuzzer-6289863463665664

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 7592e88bfe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
8327559fe8 avcodec/hq_hqa: Check remaining input bits in hqa_decode_mb()
Fixes: Timeout
Fixes: 9634/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HQ_HQA_fuzzer-6267852259590144

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 c9222b972d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
229025799f avcodec/vb: Check for end of bytestream before reading blocktype
Fixes: Timeout
Fixes: 9601/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VB_fuzzer-4550228702134272

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 1cbac9ce20)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
a04ff0c054 avcodec/snowdec: Fix integer overflow with motion vector residual
Fixes: signed integer overflow: -19818 + -2147483648 cannot be represented in type 'int'
Fixes: 9545/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SNOW_fuzzer-4928769537081344

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 acba153a14)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
ce828a247d avcodec/mpeg4videodec: Fix slice end detection in mpeg4_decode_studio_mb()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 168d8d56bf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
b95c209a61 avcodec/scpr: Check for min > max in decompress_p()
Fixes: Timeout
Fixes: 9342/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-4795990841229312

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 3378194ce8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
cd42c19f53 avcodec/shorten: Fix signed 32bit overflow in shift in shorten_decode_frame()
Fixes: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 9480/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-6647324284551168 -rss_limit_mb=2000

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 9b604e96a5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
32353f8bcb avcodec/shorten: Fix integer overflow in residual/LPC combination
Fixes: signed integer overflow: -540538872 + -2012739576 cannot be represented in type 'int'
Fixes: 9255/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-5758630052757504

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 db7e9082e1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
2c3ea34082 avcodec/shorten: Check verbatim length
Fixes: Timeout
Fixes: 9252/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-5780720709533696

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 7007dabec0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
c0a6febf32 avcodec/mpegaudio_parser: Initialize poutbuf*
Possibly fixes: null pointer dereference
Possibly fixes: 9352/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MP3ADUFLOAT_fuzzer-5146068961460224
Fixes: Heap-use-after-free
Fixes: 9453/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MP3ADUFLOAT_fuzzer-5137954375729152

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 0f4c3b0b8e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
cc0817af0d avcodec/aacpsdsp_template: Fix integer overflow in ps_stereo_interpolate_c()
Fixes: signed integer overflow: -1813244069 + -1407981383 cannot be represented in type 'int'
Fixes: 8823/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5643295618236416

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 47db5763e2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Nikolas Bowe
8591d16ce5 lavc/svq3: Fix regression decoding some files.
Fixes some SVQ3 encoded files which fail to decode correctly after 6d6faa2a2d.
These files exhibit lots of artifacts and logs show "Media key encryption is not implemented".
However they decode without artifacts before 6d6faa2a2d.
The attatched patch allows these files to successfully decode, but also reject media key files.

Tested on the files in #6094 and http://samples.mplayerhq.hu/V-codecs/SVQ3/Vertical400kbit.sorenson3.mov

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5aeb3b0080)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
07255282d0 avcodec/mlp_parser: Check if synccode is within buffer
Fixes: undefined shift
Fixes: 9216/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEHD_fuzzer-6281404575907840

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 51ac3f43b8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
f9235773d6 avcodec/qtrle: Check remaining bytestream in qtrle_decode_XYbpp()
Fixes: Timeout
Fixes: 9213/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QTRLE_fuzzer-5649753332252672

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 7dd836a3f9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
4f51a21c30 avcodec/diracdec: Check bytes count in else branch in decode_lowdelay() too
Fixes: signed integer overflow: 8 * 340018243 cannot be represented in type 'int'
Fixes: 9441/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5194665207791616

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 bed125b710)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
6cf72a56e7 avcodec/diracdec: Check slice numbers for overflows in relation to picture dimensions
Fixes: signed integer overflow: 88 * 33685506 cannot be represented in type 'int'
Fixes: 9433/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5725943535501312

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 f457c0ad7f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
88093d2c1f avcodec/diracdec: Change frame_number to 64bit as its a 32bit from the bitstream and we also have a -1 special case
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 9291/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-6324345860259840

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 462d1be6de)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
8147da2bad avcodec/dirac_dwt_template: Fix several integer overflows in horizontal_compose_daub97i()
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 8926/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-6047609228623872

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 69cac9e130)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Michael Niedermayer
f291acafbb avcodec/diracdec: Prevent integer overflow in intermediate in global_mv()
Fixes: signed integer overflow: -393471 * 5460 cannot be represented in type 'int'
Fixes: 8890/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-6299775379963904

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 5129040646)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-10-07 21:34:00 +02:00
Thilo Borgmann
49a90d5d31 lavc/videotoolboxenc: Fix compilation on osx 10.10.5 Yosemite
Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit 72d9b8f4c5)
2018-08-14 10:02:05 -07:00
Aman Gupta
fab3418cb9 avcodec/mediacodecdec: fix SEGV on modern nvidia decoders
This code came originally from gstreamer, where it was added in [1]
as a work-around for the Tegra 3. (The alignment was changed in [2]
as a response to [3], from 32-bit to 16-bit).

gstreamer only used this workaround in the case where the decoder
didn't return a slice-height property, but when the code was copied
into avcodec the conditional got lost. This commit restores the guard
and prefers the slice-height from the decoder when it is available.

This fixes segfaults decoding 1920x1080 h264 and mpeg2 videos on the
NVidia SHIELD after upgrading to Android Oreo.

[1] a870e6a5c3
[2] 21ff3ae0b0
[3] https://bugzilla.gnome.org/show_bug.cgi?id=748867

Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit 476fd6ba3a)
2018-08-03 11:07:31 -07:00
James Almer
9cc5337247 avcodec/bitstream_filters: check the input argument of av_bsf_get_by_name() for NULL
Fixes crashes like "ffmpeg -h bsf" caused by passing NULL to strcmp()

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 3258cc6507)
2018-07-28 22:43:09 -03:00
Thomas Guillem
db923b3fbd avcodec/videotoolboxenc: fix undefined behavior with rc_max_rate=0
On macOS, a zero rc_max_rate cause an error from
VTSessionSetProperty(kVTCompressionPropertyKey_DataRateLimits).

on iOS (depending on device/version), a zero rc_max_rate cause invalid
arguments from the vtenc_output_callback after few frames and then a crash
within the VideoToolbox library.

Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit 93e157f40f)
2018-07-19 09:26:30 -07:00
Michael Niedermayer
3ef38c414e avcodec/dvdsub_parser: Allocate input padding
Fixes: out of array read
Fixes: 9350/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DVDSUB_fuzzer-5746777750765568

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 cd86b5cfe2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-07-16 19:02:12 +02:00
Michael Niedermayer
40ed40902a avcodec/dvdsub_parser: Init output buf/size
No testcase

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9e6c843776)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-07-16 19:02:12 +02:00
Michael Niedermayer
0561cde128 avcodec/dirac_dwt_template: Fix signedness regression in interleave()
Found-by: <jdarnley>
Tested-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 181435a4de)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-07-16 19:02:12 +02:00
Michael Niedermayer
d8c4b2ae57 avcodec/mjpegdec: Check for odd progressive RGB
Fixes: out of array access
Fixes: 9225/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-5684770334834688

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 ee1e3ca5eb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-07-16 19:02:12 +02:00
Michael Niedermayer
fc92ca5b8e avcodec/vp8_parser: Do not leave data/size uninitialized
This is identical to what the VP9 parser does

Fixes: 9215/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LIBVPX_VP8_fuzzer-5768227253649408
Fixes: out of memory access

This may also fix oss fuzz issue 9212

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 284dde24da)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-07-16 19:02:12 +02:00
Michael Niedermayer
4439d6aa69 avcodec/mpeg4videodec: Check for bitstream end in read_quant_matrix_ext()
Fixes: out of array read
Fixes: asff-crash-0e53d0dc491dfdd507530b66562812fbd4c36678

Found-by: Paul Ch <paulcher@icloud.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5aba5b89d0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-07-16 19:02:12 +02:00
Michael Niedermayer
3bf80c7b22 avcodec/indeo4: Check for end of bitstream in decode_mb_info()
Fixes: Timeout
Fixes: 8776/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO4_fuzzer-5361788798369792

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 267ba2aa96)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-07-16 19:02:12 +02:00