From: jeanlf <jeanlf@gpac.io>
Date: Tue, 8 Feb 2022 15:10:15 +0000 (+0100)
Subject: [PATCH] fixed #2108
X-Git-Tag: archive/raspbian/1.0.1+dfsg1-4+rpi1+deb11u3^2~35
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=816090784d09a955d2d9327266668cd510c1afdf;p=gpac.git

[PATCH] fixed #2108


Gbp-Pq: Name CVE-2022-27145.patch
---

diff --git a/src/isomedia/isom_read.c b/src/isomedia/isom_read.c
index b309054..1b2cde5 100644
--- a/src/isomedia/isom_read.c
+++ b/src/isomedia/isom_read.c
@@ -2227,8 +2227,13 @@ GF_Err gf_isom_get_sample_for_movie_time(GF_ISOFile *the_file, u32 trackNumber,
 				return e;
 #endif
 
-			if (nextMediaTime && (nextMediaTime-1 != movieTime))
-				return gf_isom_get_sample_for_movie_time(the_file, trackNumber, nextMediaTime-1, StreamDescriptionIndex, SearchMode, sample, sampleNumber, data_offset);
+			if ((SearchMode==GF_ISOM_SEARCH_SYNC_BACKWARD) || (SearchMode==GF_ISOM_SEARCH_BACKWARD)) {
+				if (nextMediaTime && (nextMediaTime-1 < movieTime))
+					return gf_isom_get_sample_for_movie_time(the_file, trackNumber, nextMediaTime-1, StreamDescriptionIndex, SearchMode, sample, sampleNumber, data_offset);
+			} else {
+				if (nextMediaTime && (nextMediaTime-1 > movieTime))
+					return gf_isom_get_sample_for_movie_time(the_file, trackNumber, nextMediaTime-1, StreamDescriptionIndex, SearchMode, sample, sampleNumber, data_offset);
+			}
 		}
 		return e;
 	}