#10702: SEGV bug at /fftools/ffmpeg_enc.c in set_encoder_id in FFmpeg
-------------------------------------+-------------------------------------
Reporter: | Type: defect
ZengYunxiang |
Status: new | Priority: normal
Component: avfilter | Version: git-
| master
Keywords: bugs | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
Dear developers,
I found the following SEGV bug on FFmpeg6.1 when using both transpose and
gradfun filters, please confirm.
The poc file(poc6ffmpeg) will be attached to this ticket.
How to reproduce:
{{{
git clone https://github.com/FFmpeg/FFmpeg.git ffmpeg6-1
cd ffmpeg6-1
git checkout 466799d
./configure --cc=clang --cxx=clang++ --ld=clang --enable-debug --toolchain
=clang-asan
make -j30
./ffmpeg_g -y -i poc6ffmpeg -filter_complex transpose,gradfun tmp.mp4
}}}
ASAN Log:
{{{
AddressSanitizer:DEADLYSIGNAL
=================================================================
==324330==ERROR: AddressSanitizer: SEGV on unknown address 0x631000050000
(pc 0x000000dfa6df bp 0x7fffffffc450 sp 0x7fffffffc238 T0)
==324330==The signal is caused by a READ memory access.
#0 0xdfa6de in ff_gradfun_blur_line_movdqa_sse2
(/ffmpeg6-1/ffmpeg_g+0xdfa6de)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/ffmpeg6-1/ffmpeg_g+0xdfa6de) in
ff_gradfun_blur_line_movdqa_sse2
==324330==ABORTING
}}}
ffmpeg version:
{{{
# ./ffmpeg -version
ffmpeg version n6.1-3-g466799d4f5 Copyright (c) 2000-2023 the FFmpeg
developers
built with clang version 9.0.0 (https://github.com/llvm-mirror/llvm
c62b24f070c9a4bb1a76409e623042a740cac4cd)
configuration: --cc=clang --cxx=clang++ --ld=clang --enable-debug
--toolchain=clang-asan
libavutil 58. 29.100 / 58. 29.100
libavcodec 60. 31.102 / 60. 31.102
libavformat 60. 16.100 / 60. 16.100
libavdevice 60. 3.100 / 60. 3.100
libavfilter 9. 12.100 / 9. 12.100
libswscale 7. 5.100 / 7. 5.100
libswresample 4. 12.100 / 4. 12.100
}}}
Credit:
{{{
Zeng Yunxiang
}}}
Thanks for your time!
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10702>
FFmpeg <https://ffmpeg.org>
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