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-rw-r--r--libarchive/archive_read_support_format_tar.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libarchive/archive_read_support_format_tar.c b/libarchive/archive_read_support_format_tar.c
index 30d5bc83c321..c3b1ecb66052 100644
--- a/libarchive/archive_read_support_format_tar.c
+++ b/libarchive/archive_read_support_format_tar.c
@@ -2241,7 +2241,7 @@ gnu_add_sparse_entry(struct archive_read *a, struct tar *tar,
else
tar->sparse_list = p;
tar->sparse_last = p;
- if (remaining < 0 || offset < 0) {
+ if (remaining < 0 || offset < 0 || offset > INT64_MAX - remaining) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, "Malformed sparse map data");
return (ARCHIVE_FATAL);
}