diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/uio.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/uio.h b/include/linux/uio.h index ec098c8e6793..85b2f0ec9d3f 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -35,7 +35,11 @@ struct iovec #endif /* - * Total number of bytes covered by an iovec + * Total number of bytes covered by an iovec. + * + * NOTE that it is not safe to use this function until all the iovec's + * segment lengths have been validated. Because the individual lengths can + * overflow a size_t when added together. */ static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs) { |