diff options
| -rw-r--r-- | contrib/libarchive/libarchive/archive_write.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/contrib/libarchive/libarchive/archive_write.c b/contrib/libarchive/libarchive/archive_write.c index 62c74d9..9e761ce 100644 --- a/contrib/libarchive/libarchive/archive_write.c +++ b/contrib/libarchive/libarchive/archive_write.c @@ -671,8 +671,13 @@ static ssize_t _archive_write_data(struct archive *_a, const void *buff, size_t s) { struct archive_write *a = (struct archive_write *)_a; + const size_t max_write = INT_MAX; + archive_check_magic(&a->archive, ARCHIVE_WRITE_MAGIC, ARCHIVE_STATE_DATA, "archive_write_data"); + /* In particular, this catches attempts to pass negative values. */ + if (s > max_write) + s = max_write; archive_clear_error(&a->archive); return ((a->format_write_data)(a, buff, s)); } |
