Commit graph

26272 commits

Author SHA1 Message Date
Michael Niedermayer
c3b096bbb0
avformat/http: Check that the protocol of redirects is http or https
Fixes: #YWH-PGM40646-10

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b9227d49ea)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-05-04 15:57:01 +02:00
Michael Niedermayer
b3069ce292
avformat/hls: fix double space
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9e974b2c45)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-05-04 15:57:00 +02:00
Michael Niedermayer
ce8c3185bf
avformat/hls: Check seg size and offset for overflow
Fixes: integer overflow
Fixes: signed integer overflow: 9223372036854775807 + 2039324394 cannot be represented in type 'int64_t' (aka '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 d1985442e1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-05-04 15:57:00 +02:00
Andreas Rheinhardt
5937a7aaca
avformat/flac_picture: Correct check
Since af97c9865f,
the return value of avio_read() has been compared against
an uint32_t, so that the int is promoted to uint32_t for
the comparison (on common systems with 32bit ints). The upshot was
that errors returned from avio_read() were ignored, so that
the buffer could be uninitialized on success.

Fix this by using ffio_read_size() instead.

Fixes: MemorySanitizer: use-of-uninitialized-value
Fixes: 443923343/clusterfuzz-testcase-minimized-ffmpeg_dem_FLAC_fuzzer-5458132865449984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
(cherry picked from commit 4aed9db83c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-05-04 15:56:59 +02:00
James Almer
a5b3fcc627
avformat/demux: ensure avformat_find_stream_info updates internal stream contexts
read_frame_internal() may result in a stream being modified without also
returning a packet from it. Given said function only bothered to update the
internal stream context for the returned packet, the result would be a desync
between the stream's AVCodecParameters and the internal AVCodecContext.

This change makes sure all streams are updated within the
avformat_find_stream_info() loop.

Fixes #YWH-PGM40646-20

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit c9c95f6f32)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-05-04 15:56:59 +02:00
AdityaTeltia
957b06a788 avformat/hls_sample_encryption: add missing padding for audio setup buffer
Fixes ticket #22890.

The ff_hls_senc_parse_audio_setup_info function passes setup_data to
parsers like avpriv_ac3_parse_header and init_get_bits8 which require
the buffer to be padded with AV_INPUT_BUFFER_PADDING_SIZE bytes at the end.

(cherry picked from commit 71d5fa8d4d)
Signed-off-by: Marvin Scholz <epirat07@gmail.com>
2026-04-28 21:52:19 +00:00
James Almer
39ee683e8f avformat/mov: fix cases where we discard iamf packets from enabled streams
Given the entire iamf struct is inside a single Track, if the first iamf stream
(which is the one sharing the index and id from the Track) was to be disabled,
then packets from every iamf stream would be discarded.
Fix this by actually going through the entire iamf Sample and discarding those
from the disabled streams only.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 16ee3d8d99)
2026-02-27 12:27:41 -03:00
James Almer
37deee5cab avformat/mov: fix setting iamf stream id offsets
If we were to add the highest id of a non iamf stream as offset to iamf stream
ids, and one of the latter was 0, then an id overlap would ocurr.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 51aef95ba1)
2026-02-27 12:20:27 -03:00
Andreas Rheinhardt
f0500e1893 avformat/tests/movenc: Make objects static
(This also fixes a symbol name collision with libssh,
which has a nonstatic function called md5.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
(cherry picked from commit 836d34e3ba)
2026-02-03 15:14:58 -03:00
James Almer
419cdf9dcc avformat/mov: add an offset to IAMF streams
Using audio_substream_id for AVStream ids is not ideal give that in containers
like mp4, the IAMF structure is opaque to the outside and other streams may
share such id values.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit a8f2374507)
2026-01-23 14:50:05 -03:00
Timo Rothenpieler
7ce7207770 avformat/img2dec: reject input images too big to fit into a single packet
Not entirely sure if it should instead use some entirely different
approach here, given that images exceeding 2GB don't seem that crazy
to me, but so far processing such images results in a heap overflow,
since the size addition overflows and a much too small packet is
allocated and its size never checked again when writing into it.

Fixes #YWH-PGM40646-32

(cherry picked from commit f6a95c7eb7)
2025-12-31 17:48:24 +01:00
James Almer
40b336e650 avformat/iamf_writer: check that stream count is consistent for ambisonic Audio Elements
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit a0fc454871)
2025-12-30 20:25:18 -03:00
James Almer
c0272bf654 avformat/iamf_writer: fix writting some ambisonics fields in Audio Elements
The fields are defined as 8 bit long unsigned ints. Fortunately, writing most sane values
as leb is equivalent, which is why no tests are affected.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 21ff60d2cf)
2025-12-30 20:25:18 -03:00
James Almer
bdfaec89fe avformat/iamf_parse: fix setting denominator in AVIAMFLayer.demixing_matrix
The format of demixing_matrix is Q15 fixed point values.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 03a981445e)
2025-12-30 20:25:18 -03:00
Marvin Scholz
a606f632f1 avformat/rtsp: fix leading space in RTSP reason
When parsing the RTSP message reason, the whole remainder
after parsing the status code was used, which would lead to
a leading space in the parsed reason string.

(cherry picked from commit e63e040f0c)
Signed-off-by: Marvin Scholz <epirat07@gmail.com>
2025-12-09 15:14:05 +00:00
Marvin Scholz
5f40afe429 avformat/rtsp: do not log invalid values
When reading fails the first time, ch would be uninitialized and
printed in the log message. Instead check for an error early and
log it properly.

(cherry picked from commit 2ed47ab725)
Signed-off-by: Marvin Scholz <epirat07@gmail.com>
2025-12-09 15:14:05 +00:00
Marvin Scholz
1b36826050 avformat/http: Handle IPv6 Zone ID in hostname
When using a literal IPv6 address as hostname, it can contain a Zone ID
especially in the case of link-local addresses. Sending this to the
server in the Host header is not useful to the server and in some cases
servers refuse such requests.

To prevent any such issues, strip the Zone ID from the address if it's
an IPv6 address. This also removes it for the Cookies lookup.

Based on a patch by: Daniel N Pettersson <danielnp@axis.com>

(cherry picked from commit 5cb6d2221a)
Signed-off-by: Marvin Scholz <epirat07@gmail.com>
2025-12-09 15:14:05 +00:00
Timo Rothenpieler
4543d0509b all: apply linter fixes 2025-12-07 15:54:59 +00:00
James Almer
f65fc0b137 avformat/iamf_parse: fix compilation error
Regression since a2a6728285.

Signed-off-by: James Almer <jamrial@gmail.com>
2025-11-28 09:51:36 -03:00
James Almer
9403cdd6e8 avformat/iamf_parse: ensure the stream count in a scalable channel representation is equal to the audio element's stream count
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit faa382e5b1)
2025-11-27 22:00:39 -03:00
James Almer
a2a6728285 avformat/iamf_parse: ensure each layout in an scalable channel representation has an increasing number of channels
Fixes issue #21013

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 554ae5ada9)
2025-11-27 22:00:30 -03:00
James Almer
baee5f5e27 avformat/avformat: also clear FFFormatContext packet queue when closing a muxer
packet_buffer is used in mux.c, and if a muxing process fails at a point where
packets remained in said queue, they will leak.

Fixes ticket #11419

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit c08d300481)
2025-11-19 19:56:49 -03:00
Michael Niedermayer
a218e6a6e5
avformat/rtpdec_rfc4175: Only change PayloadContext on success
Reviewed-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c03e49dd1d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:55 +01:00
Michael Niedermayer
f1b3d804db
avformat/rtpdec_rfc4175: Check dimensions
Fixes: out of array access
Fixes: zeropath/int_overflow_in_rtpdec_rfc4175

Found-by: Joshua Rogers <joshua@joshua.hu>
Reviewed-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d4e0d5ed48)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:54 +01:00
Michael Niedermayer
51b5e19aa5
avformat/rtpdec_rfc4175: Fix memleak of sampling
Reviewed-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit af3dee3132)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:54 +01:00
Michael Niedermayer
4e8fb530ef
avformat/http: Fix off by 1 error
Fixes: out of array access
Fixes: zeropath/off-by-one-one-byte

Found-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b518c027a0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:54 +01:00
Michael Niedermayer
2b2e23ff91
avformat/sctp: Check size in sctp_write()
Fixes: out of array access
No testcase

Found-by: Joshua Rogers <joshua@joshua.hu> with ZeroPath
Reviewed-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5b98cea4bf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:53 +01:00
Michael Niedermayer
6f179470b2
avformat/rtmpproto: consider command line argument lengths
Fixes: out of array access
Fixes: zeropath/rtmp-2025-10

Found-by: Joshua Rogers <joshua@joshua.hu>
Reviewed-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 83e0298de2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:53 +01:00
Michael Niedermayer
c0bf64e009
avformat/rtmpproto_ Check tcurl and flashver length
Fixes: out of array accesses

Reviewed-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a64e037429)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:53 +01:00
Michael Niedermayer
ceae7a8353
avformat/rtpenc_h264_hevc: Check space for nal_length_size in ff_rtp_send_h264_hevc()
Fixes: memcpy with negative size
Fixes: momo_trip-poc/input

Reported-by: Momoko Shiraishi <shiraishi@os.is.s.u-tokyo.ac.jp>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d03483bd26)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:52 +01:00
Andreas Rheinhardt
26115ca03d
avformat/aviobuf: Keep checksum_ptr consistent in avio_seek()
Otherwise it might be > buf_ptr in which case ffio_get_checksum()
could segfault (s->buf_ptr - s->checksum_ptr would be negative
which would be converted to something very big when converted
to unsigned for the update_checksum callback).

Fixes ticket #11233.

Reported-by: Du4t
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
(cherry picked from commit 987c955cd7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-19 12:45:43 +01:00
James Almer
bd4191a567 avformat/demux: pass new extradata to the parser
The parser API doesn't work with packets, only raw data, so in order for it to
be made aware of new extradata propagated through packet side data we need to
pass it in some other form, namely, replacing the main extradata and ensuring
it will be parsed by restarting the parser.

Signed-off-by: James Almer <jamrial@gmail.com>
2025-10-28 11:45:26 -03:00
Michael Niedermayer
32e940a622
avformat/lrcdec: Fix fate-sub-lrc-ms-remux on x86-32
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0243cf89b1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:32 +02:00
Kacper Michajłow
d370b868bc
avformat/lrcdec: limit input timestamp range to avoid overflows
Fixes: clusterfuzz-testcase-ffmpeg_dem_LRC_fuzzer-5226140131459072
Found-by: OSS-Fuzz
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
(cherry picked from commit c74bc74398)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:28 +02:00
Kimapr
cb491e8cb3
avformat/libopenmpt: fix seeking weirdness
- proper pts for packets. leaving it blank leaves it up for guessing,
  but the guess doesn't take seeking into account, causing weirdness.

- clamp to 0 when seeking to negative ts. libopenmpt docs are unclear on
  this but not doing this causes an immediate EOF when seeking backwards
  to the beginning in mpv.

- only set song duration and packet pts when they are non-negative and
  in int64 range. NaNs count as out of range. this isn't a fix for any
  specific issue but might be helpful still, and shouldn't break
  anything.

(cherry picked from commit ecef5f9e1f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:21 +02:00
Michael Niedermayer
a44dcc770e
avformat/hls: add cmfv/cmfa exceptions
Fixes: Ticket11526

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f3c3a6ecfb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:21 +02:00
Kacper Michajłow
e8439f41ff
avformat/lrcdec: support arbitrary precision timestamp
Apparently files with milliseconds exist in the wild. And since it cost
nothing to support arbitrary number of digits, extend format to support
that.

Depending on number of digits, the time base of fractional part is
changing. Most LRCs use 2 digits and centiseconds base, but subs with 3
digits and miliseconds exist too.

Set internal time base to AV_TIME_BASE, which in parcitice allows to
hold microseconds with 6 digits. Totally artificial, but who knows maybe
someone wants that.

Fixes: #11677

Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
(cherry picked from commit bc3cc0a6af)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:20 +02:00
Michael Niedermayer
342ea86330
avformat/dashdec: Allocate space for appended "/"
Fixes: writing 1 byte over the end of the array
Fixes: BIGSLEEP-433502298/test.xml

Found-by: Google Big Sleep

A prettier solution is welcome!
A testcase exists only for the baseurl case

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ce0a655f85)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:16 +02:00
Michael Niedermayer
27624d678d
avformat/mxg: clear AV_INPUT_BUFFER_PADDING_SIZE
Fixes: use of uninitialized memory
Fixes: 427532813/clusterfuzz-testcase-minimized-ffmpeg_dem_MXG_fuzzer-5661938917113856

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 1b12e919cf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:16 +02:00
Michael Niedermayer
68fe5db819
avformat/vqf: Ensure that comm_chunk is fully read
Fixes: use of uninitialized memory
Fixes: 412125811/clusterfuzz-testcase-minimized-ffmpeg_dem_VQF_fuzzer-6253774274887680

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 1b7a327b3a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:15 +02:00
Michael Niedermayer
c785b5580e
avformat/mov: make sure file_checksum is fully initialized
Fixes: use of uninitialized memory
Fixes: 394990189/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6431722199908352

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 8b16e1ddd9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:15 +02:00
Michael Niedermayer
f083c463f1
avformat/asfdec_f: Check amount of value read
Fixes: use of uninitialized memory
Fixes: 403675492/clusterfuzz-testcase-minimized-ffmpeg_dem_ASF_fuzzer-4754281823797248

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 fa197924a6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:14 +02:00
Michael Niedermayer
ac8d81266f
avformat/concatdec: Clip duration in one more case in get_best_effort_duration()
Fixes: signed integer overflow: 40000 - -9223372036854770000 cannot be represented in type 'long'
Fixes: 427262541/clusterfuzz-testcase-minimized-ffmpeg_dem_CONCAT_fuzzer-4831506940100608

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 8cdb47e47a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:12 +02:00
Michael Niedermayer
3ece3ded0c
avformat/mov: Check that sample_count is allocated in mov_parse_heif_items()
Fixes: NULL pointer dereference
Fixes: 416811958/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5425269114732544

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0ffe97d9b9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:07 +02:00
Michael Niedermayer
093b349dd6
avformat/iff: Check nb_channels == 0 in CHNL
Fixes: division by 0
Fixes: 418396712/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-6104388018176000
Fixes: 418478219/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-4569544410857472

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5b1301004b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:06 +02:00
James Almer
a9c5da3261
avformat/movenc: fix writing reserved bits in EC3SpecificBox
As described in section F.6.1 from ETSI TS 102 366.

Found-by: nyanmisaka
Reviewed-by: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 17729aa80c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-09-08 02:13:04 +02:00
James Almer
6400860b9d avformat/iamf_parse: prevent overreads in update_extradata
Fixes: libavcodec/put_bits.h:232:32: runtime error: shift exponent -19 is negative
Fixes: Assertion n>=0 && n<=32 failed at ./libavcodec/get_bits.h:406
Fixes: 398527871/clusterfuzz-testcase-minimized-ffmpeg_dem_IAMF_fuzzer-6602025714647040

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: James Almer <jamrial@gmail.com>
2025-06-24 14:50:09 -03:00
James Almer
2c4ca52c8a avformat/iamf_parse: increase PutBytes buffer when writing AAC extradata
We may write up to 43 bits, so 5 bytes is not enough.

Fixes: Assertion n>=0 && n<=32 failed at ./libavcodec/get_bits.h:406
Fixes: 398527871/clusterfuzz-testcase-minimized-ffmpeg_dem_IAMF_fuzzer-6602025714647040

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: James Almer <jamrial@gmail.com>
2025-06-24 14:50:08 -03:00
Michael Niedermayer
ebcd40e701
avformat/matroskadec: check that channels fit in signed 32bit int
Fixes: signed integer overflow: -1384566925600903168 * 16 cannot be represented in type 'long'
Fixes: 407069502/clusterfuzz-testcase-minimized-ffmpeg_dem_WEBM_DASH_MANIFEST_fuzzer-5159255372267520

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 05f8c8c4c2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 17:29:50 +02:00
Michael Niedermayer
f9a3e1ac19
avformat/imf_cpl: fix indention after previous commit
(cherry picked from commit d28bec8c4d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 17:29:49 +02:00