Changeset 951e451 in mainline

Timestamp:

2019-02-27T20:38:32Z (5 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

2f24a8e3, 8f059b5, c56a3eb

Parents:

a4e78743

git-author:

Wang Jianjian <wangjianjian3@…> (2019-02-27 07:56:37)

git-committer:

Jakub Jermar <jakub@…> (2019-02-27 20:38:32)

Message:

vfs: do sanity check while resizing

We should make sure a fd is writable and it is a regular file
while resizing

Signed-off-by: Wang Jianjian <wangjianjian3@…>

File:

• uspace/srv/vfs/vfs_ops.c (modified) (1 diff)

uspace/srv/vfs/vfs_ops.c

@@ -618 +618 @@
                 return EBADF;
 
+        if (!file->open_write || file->node->type != VFS_NODE_FILE) {
+                vfs_file_put(file);
+                return EINVAL;
+        }
+
         fibril_rwlock_write_lock(&file->node->contents_rwlock);