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-rw-r--r--apt-pkg/tagfile.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/apt-pkg/tagfile.cc b/apt-pkg/tagfile.cc
index a0b64f9ca..d5e61baf4 100644
--- a/apt-pkg/tagfile.cc
+++ b/apt-pkg/tagfile.cc
@@ -382,7 +382,7 @@ bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength, bool const R
lastTagHash = AlphaHash(Stop, EndTag - Stop);
// find the beginning of the value
Stop = Colon + 1;
- for (; isspace_ascii(*Stop) != 0; ++Stop)
+ for (; Stop < End && isspace_ascii(*Stop) != 0; ++Stop)
if (*Stop == '\n' && Stop[1] != ' ')
break;
if (Stop >= End)