diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/read_write.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/read_write.c b/fs/read_write.c index 5816d4c4cab0..511178d7723b 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1518,6 +1518,11 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in, if (flags != 0) return -EINVAL; + if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode)) + return -EISDIR; + if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) + return -EINVAL; + ret = rw_verify_area(READ, file_in, &pos_in, len); if (unlikely(ret)) return ret; |