diff options
Diffstat (limited to 'fs/aio.c')
-rw-r--r-- | fs/aio.c | 9 |
1 files changed, 7 insertions, 2 deletions
@@ -1375,11 +1375,16 @@ static ssize_t aio_setup_single_vector(struct kiocb *kiocb, unsigned long *nr_segs, struct iovec *iovec) { - if (unlikely(!access_ok(!rw, buf, kiocb->ki_nbytes))) + size_t len = kiocb->ki_nbytes; + + if (len > MAX_RW_COUNT) + len = MAX_RW_COUNT; + + if (unlikely(!access_ok(!rw, buf, len))) return -EFAULT; iovec->iov_base = buf; - iovec->iov_len = kiocb->ki_nbytes; + iovec->iov_len = len; *nr_segs = 1; return 0; } |