[FFmpeg-trac] #7666(swscale:new): Signed integer overflow when converting to ya16
FFmpeg
trac at avcodec.org
Thu Jan 10 22:06:54 EET 2019
#7666: Signed integer overflow when converting to ya16
--------------------------------------+---------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component: swscale
Version: git-master | Keywords: ubsan
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
--------------------------------------+---------------------------------
{{{
$ make tests/vsynth1/00.pgm
$ ffmpeg -vcodec pgmyuv -i tests/vsynth1/%02d.pgm -pix_fmt ya16le -f null
-
ffmpeg version N-92942-g02b6d1d Copyright (c) 2000-2019 the FFmpeg
developers
built with gcc 6.4.0 (GCC)
configuration: --enable-gpl --toolchain=gcc-usan
libavutil 56. 25.100 / 56. 25.100
libavcodec 58. 43.100 / 58. 43.100
libavformat 58. 25.100 / 58. 25.100
libavdevice 58. 6.101 / 58. 6.101
libavfilter 7. 47.100 / 7. 47.100
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
Input #0, image2, from 'tests/vsynth1/%02d.pgm':
Duration: 00:00:02.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: pgmyuv, yuv420p, 352x288, 25 fps, 25 tbr, 25 tbn,
25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (pgmyuv (native) -> wrapped_avframe (native))
Press [q] to stop, [?] for help
libswscale/output.c:920:15: runtime error: signed integer overflow:
2147311616 + 262144 cannot be represented in type 'int'
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf58.25.100
Stream #0:0: Video: wrapped_avframe, ya16le, 352x288, q=2-31, 200
kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc58.43.100 wrapped_avframe
frame= 50 fps=0.0 q=-0.0 Lsize=N/A time=00:00:02.00 bitrate=N/A
speed=28.2x
video:26kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
Tested on x86_64, same error with `--enable-ftrapv`
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7666>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list