diff options
| -rw-r--r-- | io_uring/rsrc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index 3f195e24777e..59b4317b04a7 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -1016,6 +1016,8 @@ static int io_import_fixed(int ddir, struct iov_iter *iter, /* not inside the mapped region */ if (unlikely(buf_addr < imu->ubuf || buf_end > (imu->ubuf + imu->len))) return -EFAULT; + if (unlikely(len > MAX_RW_COUNT)) + return -EFAULT; if (!(imu->dir & (1 << ddir))) return -EFAULT; |