Commit graph

43156 commits

Author SHA1 Message Date
Michael Niedermayer
3dffbfac2c avcodec/takdsp: Fix negative shift in decorrelate_sf()
Fixes: left shift of negative value -4
Fixes: 25723/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-6250580752990208

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 4f54f53003)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
106103d7b5 avcodec/dxtory: Fix negative stride shift in dx2_decode_slice_420()
Fixes: left shift of negative value -640
Fixes: 26044/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXTORY_fuzzer-5631057602543616

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 3291d994b7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
0894fc6e66 avcodec/vc1_block: Fix integer overflow in ac value
Fixes: signed integer overflow: 25488 * 87381 cannot be represented in type 'int'
Fixes: 24765/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5108259565076480

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 3056e19e68)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
a3b4190ffb avcodec/mv30: Fix several integer overflows in idct_1d()
Fixes: signed integer overflow: -1846510390 + -361755993 cannot be represented in type 'int'
Fixes: 23941/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MV30_fuzzer-5654696631730176

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 ddf2ba5497)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
a5ff3de86e avcodec/dxtory: Fix negative shift in dx2_decode_slice_410()
Fixes: left shift of negative value -768
Fixes: 25574/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXTORY_fuzzer-6012596027916288

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 abebd87764)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
e652893c04 avcodec/sonic: Check channels before deallocating
Fixes: heap-buffer-overflow
Fixes: 25744/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SONIC_fuzzer-5172961169113088

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f249981976)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
d0cb1eb925 avcodec/ansi: Check nb_args for overflow
Fixes: Integer overflow (no testcase)

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bc0e776c9a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
0263257062 avcodec/tiff: Fix default white level
According to the spec bits per sample should be used

Fix invalid shift with bpp=32
Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 23507/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-4815432665268224

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 d54c24acde)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
0874afcfce avcodec/diracdsp: Fix integer anomaly in dequant_subband_*
Fixes: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int'); cast to an unsigned type to negate this value to itself
Fixes: 23760/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-604209011412172

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 ca3c6c981a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
604e27a614 avcodec/mv30: Check remaining mask in decode_inter()
Fixes: timeout (too long -> 4sec)
Fixes: 25129/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MV30_fuzzer-5642089713631232

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 142ae27b1d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
a119416654 avcodec/wmalosslessdec: Check remaining space before padding and channel residue
Fixes: Timeout (1101sec -> 0.4sec)
Fixes: 24491/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5725337036783616

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 c467adf3bf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
eb4301d5f8 avcodec/mpc: Fix multiple numerical overflows in ff_mpc_dequantize_and_synth()
Fixes: -2.4187e+09 is outside the range of representable values of type 'int'
Fixes: signed integer overflow: -14512205 + -2147483648 cannot be represented in type 'int'
Fixes: 20492/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPC7_fuzzer-5747263166480384
Fixes: 23528/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPC7_fuzzer-5747263166480384

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 2b9f39689a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
2f6054d297 avcodec/agm: Fix off by 1 error in decode_inter_plane()
Fixes: Regression since 1f20969457
Found-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6d71a25cc4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
8fad1a2802 avcodec/ffwavesynth: Fix integer overflow in wavesynth_synth_sample / WS_SINE
Fixes: signed integer overflow: -1429092 * -32596 cannot be represented in type 'int'
Fixes: 24419/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5157849974702080

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a0da95df77)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
bc3fa06732 avcodec/vp9dsp_template: Fix integer overflow in iadst8_1d()
Fixes: signed integer overflow: 998938090 + 1169275991 cannot be represented in type 'int'
Fixes: 23411/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VP9_fuzzer-4644692330545152

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 d182d8f10c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
810103bb2f avcodec/cfhd: Check transform type
Fixes: out of array access
Fixes: 24823/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-4855119863349248

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 659658d08b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
8362cc45ef avcodec/tiff: Check jpeg context against jpeg frame parameters
Fixes: out of array access
Fixes: 24825/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-6326925027704832

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 b9ea493afe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
4b8bb69f55 avcodec/tiff: Restrict tag order based on specification
"The entries in an IFD must be sorted in ascending order by Tag. Note that this is
 not the order in which the fields are described in this document."

This way various dimensions, sample and bit sizes cannot be changed at
arbitrary times which reduces the potential for bugs.
The tag reading code also on various places assumes that numerically previous
tags have already been parsed, so this needs to be enforced one way or another.

If this commit causes problems with real world files which are not easy to fix
then some other form of checks are needed to ensure the various dependencies
in the tag reading are not violated.

Fixes: out of array access
Fixes: 24825/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-6326925027704832

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 ad29f9e47c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
2e3de433c7 avcodec/tiff: Avoid abort with DNG RAW TIFF with YA8
Fixes: Assertion failure
Fixes: 24707/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5179910197608448

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 ca47402a06)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
b31916c313 avcodec/tiff: Check the linearization table size
Fixes: out of array access
Fixes: 24604/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-4843529818603520

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 7577f8332a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
100a7db078 avcodec/tiff: Check bpp/bppcount for 0
Fixes: division by zero
Fixes: 24253/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-6250318007107584

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 be090da25f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
2213582169 avcodec/snowdec: Sanity check hcoeff
Fixes: signed integer overflow: -2147483648 * -1 cannot be represented in type 'int'
Fixes: 24011/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SNOW_fuzzer-5486376610168832

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 d51d569cf6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
1498f31b5b avcodec/alac: Check decorr_shift to avoid invalid shift
Later the decorrelate_stereo call is guarded by channels == 2
and non-zero decorr_left_weight. Make sure decorr_shift is in
the expected shift range for that case.

Fixes: shift exponent 128 is too large for 32-bit type 'int'
Fixes: 23860/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5751138914402304

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4333718b35)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Michael Niedermayer
50d23a0256 avcodec/tdsc: Fix tile checks
Fixes: out of array access
Fixes: crash.asf

Found-by: anton listov <greyfarn7@yandex.ru>
Reviewed-by: anton listov <greyfarn7@yandex.ru>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 081e3001ed)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-02-02 14:18:20 +01:00
Anton Khirnov
666d2fc6e2 opusdec: do not fail when LBRR frames are present
Decode and discard them.

Fixes ticket 4641.

(cherry picked from commit 33b4b788aa)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2021-01-26 16:28:23 +01:00
Timo Rothenpieler
8a2acdc6da avcodec/cuviddec: backport extradata fixes 2020-10-01 21:44:54 +02:00
Timo Rothenpieler
af2a430bb1 avcodec/cuviddec: handle arbitrarily sized extradata 2020-09-30 13:55:41 +02:00
James Almer
a15a3318e1 avcodec/cbs_av1: fix setting FrameWidth in frame_size_with_refs()
Section 5.9.7 of the spec states

    UpscaledWidth = RefUpscaledWidth[ ref_frame_idx[ i ] ]
    FrameWidth    = UpscaledWidth
    FrameHeight   = RefFrameHeight[ ref_frame_idx[ i ] ]
    RenderWidth   = RefRenderWidth[ ref_frame_idx[ i ] ]
    RenderHeight  = RefRenderHeight[ ref_frame_idx[ i ] ]

Meaning FrameWidth must not be set to RefFrameWidth[ ref_frame_idx[ i ] ]
like we're currently doing.

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2020-09-05 22:30:38 -03:00
James Almer
f94134b22a avcodec/cbs_av1: use a more appropiate AV1ReferenceFrameState pointer variable name
frame is more commonly used for AV1RawFrameHeader and AV1RawFrame.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 97819f15a8)
2020-09-05 22:30:32 -03:00
James Almer
74c9965096 avcodec/cbs_av1: fix handling reference frames on show_existing_frame frames
Implement Section 7.21 "Reference frame loading process" and Section 7.20
"Reference frame update process" for show_existing_frame frames, as required by
the definition in Section 7.4 "Decode frame wrapup process".

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit e76b4b2a6b)
2020-09-05 22:30:23 -03:00
James Almer
af72c16468 avcodec/cbs_av1: infer frame_type in show_existing_frame frames earlier
This follows the spec and will come in handy in the next commit.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit afbe9ebac7)
2020-09-05 22:30:18 -03:00
James Almer
408592c838 avcodec/cbs_av1: add OrderHint to CodedBitstreamAV1Context
This follows the spec and will come in handy in a following commit.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit e3ed0ce32a)
2020-09-05 22:30:12 -03:00
James Almer
f73c4487ef avcodec/cbs_av1: infer frame_type when parsing a show_existing_frame frame
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 6c20207dce)
2020-09-05 22:30:07 -03:00
Mark Thompson
f070c53c7a cbs_av1: Fix test for presence of buffer_removal_time element
The frame must be in both the spatial and temporal layers for the
operating point, not just one of them.

(cherry picked from commit b567cb8d0b)
2020-09-05 22:30:01 -03:00
James Almer
3a66177fef avcodec/cbs_av1: fix storage size for render_{width,height}_minus_1
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 751f2a27f7)
2020-09-05 21:36:03 -03:00
Carl Eugen Hoyos
0a012a5338 lavc: Lower MediaFoundation audio encoder priority.
The actual encoders may not be available.
Fixes ticket #8699.

(cherry picked from commit 13db5061ff)
2020-08-25 18:58:59 +02:00
James Almer
590a36acbd x86/h264_deblock: fix warning about trailing empty parameter
Fixes part of ticket #8771

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 2c844c9828)
2020-07-12 11:39:29 -03:00
Michael Niedermayer
5086d22697 avcodec/tiff: Check input space in dng_decode_jpeg()
Fixes: out of array read
Fixes: 24034/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5111884337119232

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 79e8d17024)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-11 00:25:33 +02:00
Michael Niedermayer
3c4679c430 avcodec/mjpeg_parser: Adjust size rejection threshold
Fixes: 86987846-429c8d80-c197-11ea-916b-bb4738e09687.jpg
Fixes: Regression since ec3d8a0e69

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit dde6077297)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-11 00:25:33 +02:00
Michael Niedermayer
832652a9d1 avcodec/cbs_jpeg: Fix uninitialized end index in cbs_jpeg_split_fragment()
Fixes: Out of array read
Fixes: 24043/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5084566275751936.fuzz

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 4a10bc8f6f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-11 00:25:33 +02:00
Michael Niedermayer
b021eba8b6 avcodec/apedec: Fix undefined integer overflow with 24bit
Fixes: signed integer overflow: 8683744 * 256 cannot be represented in type 'int'
Fixes: 23527/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5679885932822528

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 9f7b252cdf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
093c2dd644 avcodec/loco: Fix integer overflow with large values from loco_get_rice()
Fixes: signed integer overflow: 155 + 2147483647 cannot be represented in type 'int'
Fixes: 23421/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5652849097965568

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 3ddc5e1f3c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
b228e0c5f6 avcodec/tiff: Check frame parameters before blit for DNG
Fixes: out of array access
Fixes: 23888/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-6021365974171648.fuzz

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 4091f4f780)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
11a10e30a9 avcodec/mjpegdec: Limit bayer to single plane outputting format
This reduces the number of paths reachable with DNG and should
improve security

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 865a34970e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
f98f29de5e avcodec/pnmdec: Fix misaligned reads
Found-by: "Steinar H. Gunderson" <steinar+ffmpeg@gunderson.no>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ea28ce9bc1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
531ddbacb5 avcodec/mv30: Fix integer overflows in idct2_1d()
Fixes: signed integer overflow: 6500736 * 473 cannot be represented in type 'int'
Fixes: 23259/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MV30_fuzzer-5179394271477760

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 3b8d5bcc31)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
d25345bb00 avcodec/hcadec: Check total_band_count against imdct_in size
Fixes: index 128 out of bounds for type 'float [128]'
Fixes: 23465/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HCA_fuzzer-5089866596745216

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 2d96c94531)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
1ff86cb452 avcodec/scpr3: Fix out of array access with dectab
Fixes: 23721/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-5914074721550336

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 c8de8dfba6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
f1ebea7c91 avcodec/tiff: Do not overrun the array ends in dng_blit()
Fixes: out of array access
Fixes: 23589/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5110559589793792.fuzz

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 f35caea77f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00
Michael Niedermayer
c86a9d5b82 avcodec/dstdec: Replace AC overread check by sample rate check
Real files do skip coding 0 bits at the end, thus this kind of check
does not work reliable.

Fixes: Ticket 8770
Fixes: dst-256fs44-6ch-refdstencoder.dff

The samplerate is specified in ISO/IEC 14496-3:2005(E) as one of 3 fixed
values, this also can be used to limit the duration and avoid the timeout

This reverts commit f6df99dba1.

(cherry picked from commit 1679f23beb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-09 12:35:39 +02:00