PR #22435 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22435 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22435.patch
Fixes: integer overflow Fixes: 490241718/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-4902512932225024 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> >From d6abc967571d6295d94e1093b4da43952c1c43b4 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer <[email protected]> Date: Sat, 7 Mar 2026 13:48:49 +0100 Subject: [PATCH] avformat/dhav: Fix handling or slightly larger files Fixes: integer overflow Fixes: 490241718/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-4902512932225024 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> --- libavformat/dhav.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/dhav.c b/libavformat/dhav.c index 84a203ef6f..a7a987fc5b 100644 --- a/libavformat/dhav.c +++ b/libavformat/dhav.c @@ -252,7 +252,7 @@ static int64_t get_duration(AVFormatContext *s) int64_t size = avio_size(s->pb); int64_t ret = 0; - if (start_pos + 20 > size) + if (start_pos > INT64_MAX - 20 || start_pos + 20 > size) return 0; avio_skip(s->pb, 16); -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
