Commit graph

42513 commits

Author SHA1 Message Date
Michael Niedermayer
6cc4e8e759
avcodec/tests/dct: Use 64bit in intermediate for error computation
Fixes: CID1500284 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 161d0aa2a8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 19:40:54 +02:00
Michael Niedermayer
9803a178bd
avcodec/scpr3: Check add_dec() for failure
Fixes: CID1441459 Improper use of negative value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d741638042)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 19:40:39 +02:00
Michael Niedermayer
b48f33a17c
avcodec/wavpackenc: Use unsigned for potential 31bit shift
Fixes: CID1465481 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6f976db251)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 19:39:36 +02:00
Michael Niedermayer
a7ac6a5cfc
avcodec/tests/jpeg2000dwt: Use 64bit in comparission
Found while reviewing: CID1500309 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 12391b732f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 19:38:43 +02:00
Michael Niedermayer
26497c6867
avcodec/tests/jpeg2000dwt: Use 64bit in err2 computation
This issue cannot happen with the current function parameters

Fixes: CID1500309 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 847a53f264)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 19:38:23 +02:00
Michael Niedermayer
8cb6ff56c2
avcodec/tiff: Assert init_get_bits8() success in unpack_gray()
Helps: CID1441939 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a287f17db2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 18:33:04 +02:00
Michael Niedermayer
3d5dec9fa4
avcodec/mscc & mwsc: Check loop counts before use
This could cause timeouts

Fixes: CID1439568 Untrusted loop bound

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e35fe3d8b9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:15 +02:00
Michael Niedermayer
a751406b91
avcodec/mpegvideo_enc: Fix potential overflow in RD
Fixes: CID1500285 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b6b2b01025)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:15 +02:00
Michael Niedermayer
96fcd5b12b
avcodec/mpeg4videodec: assert impossible wrap points
Helps: CID1473517 Uninitialized scalar variable
Helps: CID1473497 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8fc649b931)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:14 +02:00
Michael Niedermayer
bf085d1625
avcodec/vble: Check av_image_get_buffer_size() for failure
Fixes: CID1461482 Improper use of negative value

Sponsored-by: Sovereign Tech Fund
Reviewed-.by: "Xiang, Haihao" <haihao.xiang@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit dd5379db5d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:14 +02:00
Michael Niedermayer
9733f4e4a2
avcodec/vp3: Replace check by assert
Fixes: CID1452425 Logically dead code

Sponsored-by: Sovereign Tech Fund
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1b991e77b9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:14 +02:00
Michael Niedermayer
b404e4687a
avcodec/jpeg2000dec: remove ST=3 case
Fixes: CID1460979 Logically dead code

Sponsored-by: Sovereign Tech Fund
Reviewed-by: Tomas Härdin <git@haerdin.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4ed4f9a6c0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:13 +02:00
Michael Niedermayer
b7ec078810
avcodec/fmvc: remove dead assignment
Fixes: CID1529220 Unused value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 96c1162545)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:13 +02:00
Michael Niedermayer
9f8e7f8596
avcodec/h264_slice: Remove dead sps check
Fixes: CID1439574 Dereference after null check

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a68aa951b2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:13 +02:00
Michael Niedermayer
5c7f74004b
avcodec/lpc: copy levenson coeffs only when they have been computed
Fixes: CID1473514 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c2d897f356)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:12 +02:00
Michael Niedermayer
98c7f5a2fc
avcodec/cbs_av1: Avoid shift overflow
Fixes: CID1465488 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d7924a4f60)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:11 +02:00
Michael Niedermayer
c241b2c23a
avcodec/mpegvideo_enc: Fix 1 line and one column images
Fixes: Ticket10952
Fixes: poc21ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 96449cfeae)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-06-13 11:23:11 +02:00
Michael Niedermayer
f18ee4d5a2
avcodec/ac3_parser: Check init_get_bits8() for failure
Fixes: CID1420393 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 63415168db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-05-22 02:50:02 +02:00
Michael Niedermayer
ed652b3070
avcodec/hevcdec: Check ref frame
Fixes: NULL pointer dereferences
Fixes: 68197/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-6382538823106560

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5eb05f4450)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-05-22 02:48:15 +02:00
Michael Niedermayer
45011af5b4
avcodec/truemotion1: Height not being a multiple of 4 is unsupported
mb_change_bits is given space based on height >> 2, while more data is read

Fixes: out of array access
Fixes: 62285/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION1_fuzzer-5201925062590464.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 ebdcf98499)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:46 +02:00
Michael Niedermayer
a63bece8ae
avcodec/proresenc_kostya: Remove bug similarity text
According to kostya, it is not based on Wassermans encoder

CC: Kostya Shishkov <kostya.shishkov@gmail.com>
CC: Anatoliy Wasserman <anatoliy.wasserman@yandex.ru>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e0e30e07a1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:44 +02:00
Michael Niedermayer
c7122a760e
avcodec/vorbisdec: Check remaining data in vorbis_residue_decode_internal()
Fixes: timeout
Fixes: 66326/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-6295291863040000

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 dc89cf804a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:44 +02:00
Michael Niedermayer
edad5b7064
avcodec/pngdec: Do not pass AVFrame into global header decode
The global header should not contain a frame, and decoding it
would result in leaks

Fixes: memleak
Fixes: 45982/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APNG_fuzzer-6603443149340672

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 d31d4f3228)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:44 +02:00
Michael Niedermayer
1c71021dda
avcodec/indeo3: Round dimensions up in allocate_frame_buffers()
Fixes: Ticket6581

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3be80ce299)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:42 +02:00
Michael Niedermayer
00a5834598
avcodec/mpegvideo_enc: Use ptrdiff_t for stride
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e063c1d079)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:41 +02:00
Michael Niedermayer
961dcd9ab5
avcodec/mpegvideo_enc: Dont copy beyond the image
Fixes: out of array access
Fixes: tickets/10754/poc17ffmpeg

Discovered by Zeng Yunxiang.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a066b8a809)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:40 +02:00
Michael Niedermayer
de65d41b70
avcodec/jpeglsdec: Check Jpeg-LS LSE
Fixes: signed integer overflow: 2147478526 + 33924 cannot be represented in type 'int'
Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 64243/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-5195717848989696

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 c72a20f01a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:36 +02:00
Michael Niedermayer
373eec5e50
avcodec/4xm: Check for cfrm exhaustion
Fixes: index -1 out of bounds for type 'CFrameBuffer [100]'
Fixes: 63877/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5854263397711872

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 bb0a684d93)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:35 +02:00
Michael Niedermayer
6cec2a4a99
avcodec/jpeg2000dec: Check image offset
Fixes: left shift of negative value -538967841
Fixes: 62447/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-6427134337613824

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Tomas Härdin <git@haerdin.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 88453250db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:32 +02:00
Michael Niedermayer
9ddb556afb
avcodec/h2645_parse: Avoid EAGAIN
EAGAIN causes an assertion failure when it is returned from the decoder

Fixes: Assertion consumed != (-(11)) failed at libavcodec/decode.c:462
Fixes: assertion_IOT_instruction_decode_c_462/poc

Found-by: Hardik Shah of Vehere (Dawn Treaders team)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5ddab49d48)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:32 +02:00
Michael Niedermayer
97bd02c0f1
avcodec/xvididct: Make c* unsigned to avoid undefined overflows
Fixes: signed integer overflow: 1496950099 + 728014168 cannot be represented in type 'int'
Fixes: 62667/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEGB_fuzzer-6511785170305024

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 f7e5537dc1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:31 +02:00
Michael Niedermayer
4b257fba50
avcodec/escape124: Do not return random numbers
Fixes: out of array access
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ESCAPE124_fuzzer-6035022714634240
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ESCAPE124_fuzzer-6422176201572352

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 fe6d46490f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:29 +02:00
Michael Niedermayer
43c3acb60e
avcodec/lcldec: Make PNG filter addressing match the code afterwards
Also update check accordingly

Fixes: tickets/10237/mszh_306_306_yuv422_nocompress.avi
Fixes: tickets/10237/mszh_306_306_yuv411_nocompress.avi

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d11b8bd0c6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:28 +02:00
Michael Niedermayer
f9d854be1e
avcodec/xvididct: Fix integer overflow in idct_row()
Fixes: signed integer overflow: 1871429831 + 343006811 cannot be represented in type 'int'
Fixes: 61784/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AIC_fuzzer-5372151001120768

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 b12444fe72)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:27 +02:00
Michael Niedermayer
75be1f9a18
avcodec/celp_math: avoid overflow in shift
by making gain unsigned we have 1 bit more available
alternatively we can clip twice as in the g729 reference

Fixes: left shift of 23404 by 17 places cannot be represented in type 'int'
Fixes: 61728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ACELP_KELVIN_fuzzer-6280412547383296

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 6580a7b2b2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:27 +02:00
Michael Niedermayer
d3071db595
avcodec/huffyuvdec: avoid undefined behavior with get_vlc2() failure
Fixes: left shift of negative value -1
Fixes: 59889/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HUFFYUV_fuzzer-5472742275940352

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 90647a9249)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:26 +02:00
Michael Niedermayer
b9bf29ea77
avcodec/cscd: Fix "CamStudio Lossless Codec 1.0" gzip files
Fixes: tickets/10241/cscd_1_0_306_306_gzip.avi

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab7d38f970)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:26 +02:00
Michael Niedermayer
545b76d7b1
avcodec/cscd: Check for CamStudio Lossless Codec 1.0 behavior in end check of LZO files
Alternatively the check could be simply made more tolerant
Fixes: Ticket10227

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d2a0464fc2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:25 +02:00
Michael Niedermayer
938a762473
avcodec/hevcdec: Fix undefined memcpy()
There is likely a better way to fix this, this is mainly to show the problem

Fixes: MC within same frame resulting in overlapping memcpy()
Fixes: 60189/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-4992746590175232
Fixes: 61753/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5022150806077440
Fixes: 58062/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-4717458841010176

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 94bd1796ff)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:25 +02:00
Michael Niedermayer
c4a7dbdbee
avcodec/mpeg4videodec: more unsigned in amv computation
Fixes: signed integer overflow: -2147483648 + -1048576 cannot be represented in type 'int'
Fixes: 59365/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-642654923954585

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 0adaa90d89)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:25 +02:00
Michael Niedermayer
7e27518e98
avcodec/tta: fix signed overflow in decorrelate
Fixes: signed integer overflow: 2079654542 - -139267653 cannot be represented in type 'int'
Fixes: 60811/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5915858409750528

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 283bf5c35b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:24 +02:00
Michael Niedermayer
3e3fc9fce4
avcodec/xvididct: Fix integer overflow in idct_row()
Fixes: signed integer overflow: -1403461578 + -843974775 cannot be represented in type 'int'
Fixes: 60868/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG1VIDEO_fuzzer-4599793035378688

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 0ce322a51e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:24 +02:00
Michael Niedermayer
fd600a9cc1
avcodec/jpeg2000dec: Check for reduction factor and image offset
This combination is not working (it writes out of array)

Reviewed-by: Tomas Härdin <git@haerdin.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9b6d191a66)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:23 +02:00
Michael Niedermayer
201c74b33d
avcodec/utils: fix 2 integer overflows in get_audio_frame_duration()
Fixes: signed integer overflow: 256 * 668003712 cannot be represented in type 'int'
Fixes: 59819/clusterfuzz-testcase-minimized-ffmpeg_dem_MATROSKA_fuzzer-4674636538052608

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 a4bf559683)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:22 +02:00
Michael Niedermayer
e6f1bbc5db
avcodec/hevcdec: Avoid null pointer dereferences in MC
Fixes: runtime error: pointer index expression with base 0x000000000000 overflowed to 0xfffffffffffffff8
Fixes: 58440/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5956015530311680

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 a0f4d4e650)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:22 +02:00
Michael Niedermayer
a18761a9fc
avcodec/takdsp: Fix integer overflows
Fixes: avcodec/takdsp.c:44:23: runtime error: signed integer overflow: -2097158 - 2147012608 cannot be represented in type 'int'
Fixes: 58417/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5268919664640000

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 ff8a496d41)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:22 +02:00
Michael Niedermayer
21b551011a
avcodec: Ignoring errors is only possible before the input end
Fixes: out of array read
Fixes: Ticket 10308

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fead656a7b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:21 +02:00
Michael Niedermayer
1658316c83
avcodec/noise_bsf: Check for wrapped frames
Wrapped frames contain pointers so they need specific code to
noise them, the generic code would lead to segfaults

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0889ebc577)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:21 +02:00
Michael Niedermayer
971f208ab3
avcodec/tak: Check remaining bits in ff_tak_decode_frame_header()
Fixes: out of array access
Fixes: 45982/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-6682195323650048

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 19b66b89da)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:20 +02:00
Michael Niedermayer
11f241c02e
avcodec/utils: the IFF_ILBM implementation assumes that there are a multiple of 16 allocated
Fixes: out of array access
Fixes: 45982/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5124452659888128
Fixes: 45982/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-6362836707442688

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 34056a94ea)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-14 22:12:20 +02:00