Commit Graph

23321 Commits

Author SHA1 Message Date
Michael Niedermayer
0014249fd9 avformat/nutdec: Fix integer overflow in count computation
Note, the value is checked a few lines later already

Fixes: signed integer overflow: -440402016 - 1879048064 cannot be represented in type 'int'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_NUT_fuzzer-6603876618469376

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-26 18:37:12 +01:00
Michael Niedermayer
48fb752767 avformat/mvi: Use 64bit for testing dimensions
Fixes: signed integer overflow: 65535 * 65535 cannot be represented in type 'int'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_MVI_fuzzer-6649291124899840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-26 18:37:12 +01:00
Michael Niedermayer
29851cb840 avformat/utils: Check dts in update_initial_timestamps() more
Fixes: signed integer overflow: -9223372036853488158 - 90000000 cannot be represented in type 'long long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_MPSUB_fuzzer-6696625298866176

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-26 18:37:12 +01:00
Michael Niedermayer
463e024363 avformat/mpsubdec: Use av_sat_add/sub64() in fracval handling
Fixes: signed integer overflow: 9223372036850000000 + 9000000 cannot be represented in type 'long long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_MPSUB_fuzzer-665448017480908

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-26 18:37:12 +01:00
Michael Niedermayer
cb31667611 avformat/flvdec: Check for avio_read() failure in amf_get_string()
Suggested-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-26 18:37:12 +01:00
Michael Niedermayer
2ef522c918 avformat/flvdec: Check for nesting depth in amf_skip_tag()
Fixes: out of array access
Fixes: 29440/clusterfuzz-testcase-minimized-ffmpeg_dem_KUX_fuzzer-5985279812960256.fuzz

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-26 18:37:12 +01:00
Michael Niedermayer
074e204b42 avformat/flvdec: Check for nesting depth in amf_parse_object()
Fixes: out of array access
Fixes: 29202/clusterfuzz-testcase-minimized-ffmpeg_dem_KUX_fuzzer-5112845840809984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-26 18:37:12 +01:00
Robin Cooksey
e22108240b lavf/http: treat 308 as 301
FFmpeg does not support POST, so there is no difference between a
308 and 301 request (see [RFC7538] section 3).

Signed-off-by: Josh Dekker <josh@itanimul.li>
2021-01-25 09:36:47 +01:00
Michael Niedermayer
9e3d09f435 avformat/asfdec_o: Check for EOF in asf_read_marker()
Fixes: Timeout
Fixes: 26460/clusterfuzz-testcase-minimized-ffmpeg_dem_ASF_O_fuzzer-5710884393189376

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-25 01:10:14 +01:00
Andreas Rheinhardt
a6d741920f avformat/rtpdec: Constify RTPDynamicProtocolHandlers
Also constify the list of pointers to said RTPDynamicProtocolHandlers.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-24 11:28:53 +01:00
Andreas Rheinhardt
3567fab6e2 avformat/rtpdec: Remove next pointer from Protocol Handlers
Forgotten in 6197453761 (notice that
RTPDynamicProtocolHandler is not a public struct, so one can remove
the linked-list pointer immediately (unlike in most other patches of
this kind)).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-24 11:19:10 +01:00
Zhao Zhili
1775688292 avformat/hlsenc: EXT-X-I-FRAMES-ONLY requires version 4 or higher 2021-01-24 10:55:44 +08:00
Zhao Zhili
47327aa2d9 avformat/hls: change sequence number type to int64_t
Fix atoi() overflow for large EXT-X-MEDIA-SEQUENCE.

The spec says the type of sequence number is uint64_t. Use int64_t
here since current implementation requires it to be signed integer,
and hlsenc use int64_t too.
2021-01-24 10:55:29 +08:00
Marton Balint
daac7f4d9c avformat/swf: add support for reading and writing VP6A and Flash Screen Video codecs
Signed-off-by: Marton Balint <cus@passwd.hu>
2021-01-23 20:10:05 +01:00
Marton Balint
8d5f2a005d avformat/swfenc: add support for muxing png images
Signed-off-by: Marton Balint <cus@passwd.hu>
2021-01-23 20:10:04 +01:00
Marton Balint
041e735c81 avformat/swfenc: fix generation of FileAttributes tag
Signed-off-by: Marton Balint <cus@passwd.hu>
2021-01-23 20:10:04 +01:00
Michael Niedermayer
7a6666b19d avformat/flvdec: Use av_sat_add64() for pts computation
Fixes: signed integer overflow: -9223372036854767583 + -65536 cannot be represented in type 'long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_FLV_fuzzer-6734549467922432

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-23 14:32:54 +01:00
Michael Niedermayer
d82ee907d6 avformat/utils: Check dts - (1<<pts_wrap_bits) overflow
Fixes: signed integer overflow: -9223372036842389247 - 2147483648 cannot be represented in type 'long long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_FLV_fuzzer-4845007531671552

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-23 14:32:54 +01:00
Michael Niedermayer
638a151a87 avformat/bfi: Check chunk_header
Fixes: signed integer overflow: -2147483648 - 3 cannot be represented in type 'int'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_BFI_fuzzer-6665764123836416

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-23 14:32:54 +01:00
Michael Niedermayer
c78b2b138c avformat/ads: Check size
Fixes: signed integer overflow: -2147483616 - 64 cannot be represented in type 'int'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_ADS_fuzzer-6617769344892928

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-23 14:32:54 +01:00
Michael Niedermayer
b17ffe8f8f avformat/iff: Check block align also for ID_MAUD
Fixes: Timeout & OOM
Fixes: 28701/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-5185094964871168
Fixes: 29116/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-4874284795297792

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-23 14:32:54 +01:00
Michael Niedermayer
14bbb6bb30 avformat/fitsdec: Better size checks
Fixes: out of array access
Fixes: 26819/clusterfuzz-testcase-minimized-ffmpeg_dem_FITS_fuzzer-5634559355650048
Fixes: 26820/clusterfuzz-testcase-minimized-ffmpeg_dem_FITS_fuzzer-5760774955597824
Fixes: 27379/clusterfuzz-testcase-minimized-ffmpeg_dem_FITS_fuzzer-5129775942991872.fuzz

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-23 01:05:25 +01:00
Michael Niedermayer
d3d9b1fc8e avformat/mxfdec: Fix integer overflow in next position in mxf_read_local_tags()
Fixes: signed integer overflow: 9223372036854775723 + 8192 cannot be represented in type 'long'
Fixes: 29072/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-4812604904177664

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-23 01:05:25 +01:00
Limin Wang
6dad428546 avformat/async: Use AVERROR macro
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
2021-01-22 07:40:29 +08:00
Michael Niedermayer
1b373b41d9 avformat/avidec: dv does not support palettes
Fixes: memleak
Fixes: 26937/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-5763003338981376

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-21 20:21:32 +01:00
Michael Niedermayer
7540d60bf6 avformat/dhav: Break out of infinite dhav search loop
Fixes: Infinite loop
Fixes: 26922/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-5794549613723648

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-21 20:21:32 +01:00
Michael Niedermayer
1b1dac2716 libavformat/utils: consider avio_size() failure in ffio_limit()
Fixes: Timeout (>20sec -> 3ms)
Fixes: 26918/clusterfuzz-testcase-minimized-ffmpeg_dem_THP_fuzzer-5750425191710720

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-21 20:21:32 +01:00
Michael Niedermayer
60770a50fb avformat/nistspheredec: Check bits_per_coded_sample and channels
Fixes: signed integer overflow: 80 * 92233009 cannot be represented in type 'int'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_NISTSPHERE_fuzzer-6669100654919680

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-21 20:21:32 +01:00
Michael Niedermayer
631ee3f8e4 avformat/paf: Do not zero allocated tables which are immedeately filled
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-21 20:21:32 +01:00
Michael Niedermayer
0bee216ad4 avformat/asfdec_o: Check size vs. offset in detect_unknown_subobject()
Fixes: signed integer overflow: 2314885530818453566 + 7503032301549264928 cannot be represented in type 'long'
Fixes: 26639/clusterfuzz-testcase-minimized-ffmpeg_dem_ASF_O_fuzzer-6024222100684800

Alternatively this could be ignored but then the end condition of the loop
would be hard to reach as avio_tell() is int64_t

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-20 21:26:46 +01:00
Michael Niedermayer
03c479ce23 avformat/utils: check for integer overflow in av_get_frame_filename2()
Fixes: signed integer overflow: 317316873 * 10 cannot be represented in type 'int'
Fixes: 24708/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5731180885049344

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-20 21:26:46 +01:00
rcombs
eabf5e6d6b All: update names in copyright headers 2021-01-20 01:02:56 -06:00
Michael Niedermayer
c48110a4a4 avformat/id3v2: Check against max compression ratio before allocation
Fixes: Timeout (>10sec -> 12ms)
Fixes: 27612/clusterfuzz-testcase-minimized-ffmpeg_dem_PCM_S24BE_fuzzer-6605893000757248

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-19 00:05:50 +01:00
Michael Niedermayer
7d7ae68972 avformat/avidec: Use av_sat_sub64() in check_stream_max_drift()
Fixes: signed integer overflow: 8833900919969684211 - -9223372036854775808 cannot be represented in type 'long'
Fixes: 26726/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-5669377724383232
Fixes: 27587/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-6294562263531520

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-19 00:05:50 +01:00
Michael Niedermayer
8c9a5a0fe9 avformat/mov: Check a.size before computing next_root_atom
Fixes: signed integer overflow: 64 + 9223372036854775799 cannot be represented in type 'long'
Fixes: 27563/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6244650163372032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-19 00:05:50 +01:00
Michael Niedermayer
ac6c8993f7 avformat/sbgdec: Reduce the amount of floating point in str_to_time()
Fixes: 1e+75 is outside the range of representable values of type 'long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_SBG_fuzzer-6626834808700928

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>
2021-01-19 00:05:50 +01:00
tpol
71ce5c32f0 avformat/rtsp: correctly set media control uri with mpegts
Fixes #1941

Currently the media control uri is not correctly assigned when mpegts is
signalled in the media description.

The code checks whether at least one AVStream has been setup before
assigning to the media's uri. With mpegts the AVStreams are setup when
parsing packets and so the media's uri is skipped. This is fixed by
using rt->nb_rtsp_streams in the check which counts all medias in the
sdp.

Reviewed-by: Andriy Gelman <andriy.gelman@gmail.com>
Signed-off-by: Andriy Gelman <andriy.gelman@gmail.com>
2021-01-17 21:36:16 -05:00
Limin Wang
bf1cc9a43b avformat/hlsenc: reindent the code
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
2021-01-16 08:53:27 +08:00
Limin Wang
5ef20244de avformat/udp: add memory alloc checks
Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
2021-01-16 08:51:31 +08:00
Limin Wang
f6eaa864f3 avformat/udp: return the error code instead of generic EIO
Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
2021-01-16 08:51:22 +08:00
Martin Storsjö
c2424b1f35 movenc: Present durations in mvhd/tkhd/mdhd as they are after edits
If the edit lists remove parts of the output timeline, or add a
delay to it, this should be included in the mvhd/tkhd/mdhd durations,
which should correspond to the edit lists.

For tracks starting with pts < 0, the edit list trims out the segment
before pts=0. For tracks starting with pts > 0, a delay element is
added in the edit list, delaying the start of the track data.

In both cases, the practical effect is that the post-edit output
is as if the track had started with pts = 0. Thus calculate the range
from pts=0 to end_pts, for the purposes of mvhd/tkhd/mdhd, unless
edit lists explicitly are disabled.

mov_write_edts_tag needs to operate on the actual pts duration of
the track samples, not the duration that already takes the edit
list effect into account.

Signed-off-by: Martin Storsjö <martin@martin.st>
2021-01-15 15:01:03 +02:00
Idan Freiberg
a6912e5b88 avformat/dhav: Fix incorrect non-DHAV chunk skipping logic
DAV files may contain a variable length padding in between chunks
filled with 0xff bytes. The current skipping logic is incorrect as it
may skip over DHAV chunks not appearing sequentially in the file.

We now look for the 'DHAV' tag using a byte-by-byte search in order
to handle such situations. Also the dhav->last_good_pos field will
not be updated while skipping unrecognized data.
2021-01-14 14:20:02 +01:00
AlexisWilke
ca21cb1e36 avformat/allformats: test pointer to be used
Two tests check the opposite pointer before using it. If only one of these
is set to a valid pointer, one of these functions will crash, the other will
ignore the pointer.

Signed-off-by: James Almer <jamrial@gmail.com>
2021-01-12 00:17:30 -03:00
Michael Niedermayer
88519be8db avformat/mxfdec: Free all types for both Descriptors
Fixes: memleak
Fixes: 26352/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5201158714687488

Suggested-by: Tomas Härdin <tjoppen@acc.umu.se>
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-11 23:23:36 +01:00
Michael Niedermayer
b0259aa248 avformat/utils: wrap_timestamp() is only needed for less than 64 bits
Fixes: shift exponent 64 is too large for 64-bit type 'unsigned long long'
Fixes: 26497/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-5690188355076096
Fixes: 26903/clusterfuzz-testcase-minimized-ffmpeg_dem_LUODAT_fuzzer-5641466929741824

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-11 23:17:36 +01:00
Michael Niedermayer
fcc263caa9 avformat/aaxdec: Check string before strcmp()
Fixes: NULL ptr dereference
Fixes: 26508/clusterfuzz-testcase-minimized-ffmpeg_dem_AAX_fuzzer-5694725249826816

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-11 23:15:04 +01:00
Michael Niedermayer
7186ec88b9 uavformat/rsd: check for EOF in extradata
Fixes: OOM
Fixes: 26503/clusterfuzz-testcase-minimized-ffmpeg_dem_RSD_fuzzer-6530816735444992

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-11 23:15:04 +01:00
Marton Balint
2e2891383e avformat: remove some mpegts details from AVStream
These fields were added to support -merge_pmt_versions, but the mpegts demuxer
is also keeping track its programs internally, so that should be a better place
to handle it.

Also it is not a very good idea to keep fields like program_num or
pmt_stream_idx in an AVStream, because a single stream can be part of multiple
programs, multiple PMTs, so the stream attributes can refer to any program the
stream is part of.

Since they are not part of public API, lets simply remove them, or rather
replace them with placeholders for ABI compatibility with libavdevice.

Signed-off-by: Marton Balint <cus@passwd.hu>
2021-01-09 22:38:12 +01:00
Marton Balint
e57879ec18 avformat/mpegts: use stream index based lookup with merge_pmt_versions if stream identifier matches multiple streams
Also make sure we are checking the old state of the streams because otherwise
some streams might already have the newly parsed stream identifiers which
corrupts matching.

Fixes streams having the same identifier mixed up on pmt version change.

Fixes ticket #9006.

Signed-off-by: Marton Balint <cus@passwd.hu>
2021-01-09 22:38:12 +01:00
Marton Balint
f143a6c151 avformat/mpegts: only clear programs which no longer exist or have a new PMT
Otherwise there can be a small period when the programs only contain the PMT
pid.

Also make sure skip_clear only affects AVProgram clear, and that pmt_pid is
always kept as the first entry of the PID list of the programs. Also reject
PMTs for programs on the wrong PID.

Signed-off-by: Marton Balint <cus@passwd.hu>
2021-01-09 22:38:12 +01:00