ffmpeg | branch: master | Kacper Michajłow <kaspe...@gmail.com> | Thu Jun 27 02:40:37 2024 +0200| [2b5f000d3f6f9e737e918a5438e6c881f65e70e2] | committer: Michael Niedermayer
avformat/jpegxl_anim_dec: ensure input padding is zeroed Fixes use of uninitialized value, reported by MSAN. Found by OSS-Fuzz. Signed-off-by: Kacper Michajłow <kaspe...@gmail.com> Fixes: 70837/clusterfuzz-testcase-minimized-ffmpeg_dem_JPEGXL_ANIM_fuzzer-5089407768526848 Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2b5f000d3f6f9e737e918a5438e6c881f65e70e2 --- libavformat/jpegxl_anim_dec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/jpegxl_anim_dec.c b/libavformat/jpegxl_anim_dec.c index ac95d3b961..2338a2e8c0 100644 --- a/libavformat/jpegxl_anim_dec.c +++ b/libavformat/jpegxl_anim_dec.c @@ -124,6 +124,8 @@ static int jpegxl_anim_read_header(AVFormatContext *s) } } + memset(head + headsize, 0, AV_INPUT_BUFFER_PADDING_SIZE); + /* offset in bits of the animation header */ ret = ff_jpegxl_parse_codestream_header(head, headsize, &meta, 0); if (ret < 0 || meta.animation_offset <= 0) _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
