12:02:35 ~/sandbox/ffbuild/usan ☭ ./ffmpeg_g -v 0 -f lavfi -i testsrc2 -frames:v 1 -y /tmp/x.mov
12:03:01 ~/sandbox/ffbuild/usan ☭ ./ffmpeg_g -v 0 -i /tmp/x.mov
src/libavformat/mov.c:4053:44: runtime error: store to address 0x55b98704d4c0 with insufficient space for an object of type 'struct MOVIndexRange'
0x55b98704d4c0: note: pointer points here
 00 00 00 00  00 00 00 00 00 00 00 00  71 6a 00 00 00 00 00 00  20 6b 9f 57 8e 7f 00 00  20 6b 9f 57
              ^
src/libavformat/mov.c:4055:38: runtime error: store to address 0x55b98704d4c8 with insufficient space for an object of type 'int64_t'
0x55b98704d4c8: note: pointer points here
 00 00 00 00  71 6a 00 00 00 00 00 00  20 6b 9f 57 8e 7f 00 00  20 6b 9f 57 8e 7f 00 00  00 00 00 00
              ^
src/libavformat/mov.c:4116:32: runtime error: store to address 0x55b98704d4d0 with insufficient space for an object of type 'struct MOVIndexRange'
0x55b98704d4d0: note: pointer points here
 00 00 00 00  20 6b 9f 57 8e 7f 00 00  20 6b 9f 57 8e 7f 00 00  00 00 00 00 00 00 00 00  41 00 00 00
              ^
src/libavformat/mov.c:4117:30: runtime error: store to address 0x55b98704d4d8 with insufficient space for an object of type 'int64_t'
0x55b98704d4d8: note: pointer points here
 00 00 00 00  20 6b 9f 57 8e 7f 00 00  00 00 00 00 00 00 00 00  41 00 00 00 00 00 00 00  75 6e 64 65
              ^
12:03:16 ~/sandbox/ffbuild/usan ✗ ./ffmpeg_g
ffmpeg version N-112940-g1439784ff0 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 13.2.1 (GCC) 20230801
  configuration: --enable-gpl --samples=/home/ux/fate-samples --disable-doc --enable-version3 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --assert-level=2 --toolchain=gcc-usan
  libavutil      58. 32.100 / 58. 32.100
  libavcodec     60. 35.100 / 60. 35.100
  libavformat    60. 18.100 / 60. 18.100
  libavdevice    60.  4.100 / 60.  4.100
  libavfilter     9. 14.100 /  9. 14.100
  libswscale      7.  6.100 /  7.  6.100
  libswresample   4. 13.100 /  4. 13.100
  libpostproc    57.  4.100 / 57.  4.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'
12:03:23 ~/sandbox/ffbuild/usan