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-rw-r--r--libarchive/archive_read_support_format_cab.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libarchive/archive_read_support_format_cab.c b/libarchive/archive_read_support_format_cab.c
index e5ff5a12cd9b..a6475308e016 100644
--- a/libarchive/archive_read_support_format_cab.c
+++ b/libarchive/archive_read_support_format_cab.c
@@ -1509,8 +1509,8 @@ cab_read_ahead_cfdata_deflate(struct archive_read *a, ssize_t *avail)
}
if (mszip == 1 && cab->stream.next_in[0] != 0x4b)
goto nomszip;
- else if (cab->stream.next_in[0] != 0x43 ||
- cab->stream.next_in[1] != 0x4b)
+ else if (mszip == 2 && (cab->stream.next_in[0] != 0x43 ||
+ cab->stream.next_in[1] != 0x4b))
goto nomszip;
cab->stream.next_in += mszip;
cab->stream.avail_in -= mszip;