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commit aa24466263cb1699667b30b5d43035f817ee8b08 Author: Michael Niedermayer <[email protected]> AuthorDate: Tue Feb 10 17:44:52 2026 +0100 Commit: Michael Niedermayer <[email protected]> CommitDate: Mon May 4 17:13:24 2026 +0200 avformat/dhav: Check avio_seek() return Fixes: infinite loop Fixes: 472567148/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-4520943574908928 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit 927ae7a0d51f5ed8ee5405064d5d58591a3fe3a1) Signed-off-by: Michael Niedermayer <[email protected]> --- libavformat/dhav.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/dhav.c b/libavformat/dhav.c index 2ec4857f29..62e9bd5c5b 100644 --- a/libavformat/dhav.c +++ b/libavformat/dhav.c @@ -290,7 +290,9 @@ static int dhav_read_header(AVFormatContext *s) if (seek_back < 9) break; dhav->last_good_pos = avio_tell(s->pb); - avio_seek(s->pb, -seek_back, SEEK_CUR); + int64_t ret64 = avio_seek(s->pb, -seek_back, SEEK_CUR); + if (ret64 < 0) + return ret64; } avio_seek(s->pb, dhav->last_good_pos, SEEK_SET); } _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
