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FFmpeg/libswresample

History

Yu Yang ac2b34abbf libswresample/swresamplec: Err num(negative-size) was used as a function parameter ... If memory allocation fails, ERROR(ENOMEM) '-12' will be returned. When resample() is done first, the negative size param would cause buffer-overflow and SEGV in swri_rematrix(). When swri_rematrix() is run first, resample() would not cause an error but Err num as a wrong parameter passing. Err num should be returned immediately. And remove an unneeded term from an assert. coredump info: #0 0x499517 in posix_memalign (/home/r1/ffmpeg/ffmpeg_4.4.1+0x499517) #1 0x6c1f0b4 in av_malloc /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavutil/mem.c:86:9 #2 0x6c208fe in av_mallocz /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavutil/mem.c:239:17 #3 0x6c207ad in av_mallocz_array /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavutil/mem.c:195:12 #4 0x654b2e5 in swri_realloc_audio /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libswresample/swresample.c:418:14 #5 0x654f9a1 in swr_convert_internal /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libswresample/swresample.c:601:17 #6 0x654d2c0 in swr_convert /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libswresample/swresample.c:766:19 #7 0x186cf56 in flush_frame /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/af_aresample.c:251:13 #8 0x186a454 in request_frame /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/af_aresample.c:288:20 #9 0x787d9c in ff_request_frame_to_filter /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/avfilter.c:459:15 #10 0x7877f1 in forward_status_change /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/avfilter.c:1257:19 #11 0x77ed7e in ff_filter_activate_default /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/avfilter.c:1288:20 #12 0x77e4e1 in ff_filter_activate /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/avfilter.c:1441:11 #13 0x793b3f in ff_filter_graph_run_once /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/avfiltergraph.c:1403:12 #14 0x7a7bee in get_frame_internal /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/buffersink.c:131:19 #15 0x7a7287 in av_buffersink_get_frame_flags /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/buffersink.c:142:12 #16 0x792888 in avfilter_graph_request_oldest /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/libavfilter/avfiltergraph.c:1356:17 #17 0x5d07df in transcode_from_filter /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/fftools/ffmpeg.c:4639:11 #18 0x59e557 in transcode_step /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/fftools/ffmpeg.c:4729:20 #19 0x593970 in transcode /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/fftools/ffmpeg.c:4805:15 #20 0x58f7a4 in main /home/r1/ffmpeg/ffmpeg-4.4.1/build/src/fftools/ffmpeg.c:5010:9 #21 0x7f6fd2dee0b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16 SUMMARY: AddressSanitizer: negative-size-param (/home/r1/ffmpeg/ffmpeg_4.4.1+0x497e67) in __asan_memcpy Reported-by: TOTE Robot <oslab@tsinghua.edu.cn> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>		3 years ago
..
aarch64	swresample/aarch64: fix relocation out of range error	3 years ago
arm	Include attributes.h directly	4 years ago
tests	all: Remove unused-but-set variables	3 years ago
x86	Replace all occurences of av_mallocz_array() by av_calloc()	3 years ago
Makefile	…
audioconvert.c	libswresample/audioconvert: Fix undefined NULL + 0	4 years ago
audioconvert.h	avutil/internal, swresample/audioconvert: Remove cpu.h inclusions	4 years ago
dither.c	…
dither_template.c	…
libswresample.v	…
log2_tab.c	…
noise_shaping_data.c	swr/noise_shaping_data: pad coeffs to multiple of 4 when they are 1 below	12 years ago
options.c	avcodec/avcodec: Stop including channel_layout.h in avcodec.h	4 years ago
rematrix.c	swresample/rematrix: handle 22.2 as a 9 channel layout	5 years ago
rematrix_template.c	swresample/rematrix: Use clipping s16 rematrixing if overflows are possible	9 years ago
resample.c	avcodec/avcodec: Don't include cpu.h	4 years ago
resample.h	…
resample_dsp.c	…
resample_template.c	…
soxr_resample.c	…
swresample.c	libswresample/swresamplec: Err num(negative-size) was used as a function parameter	3 years ago
swresample.h	…
swresample_frame.c	avcodec/avcodec: Stop including channel_layout.h in avcodec.h	4 years ago
swresample_internal.h	swresample: Use double and float for matrixes for best quality and speed	8 years ago
swresampleres.rc	…
version.h	(postproc|swresample)/version: Don't include libavutil/avutil.h	4 years ago