Currently function debugfs_create_dir() creates a new
directory in the debugfs (usually mounted /sys/kernel/debug)
with permission rwxr-xr-x. This is hard coded.
Change this to use the parent directory permission.
Fixes: edac65eaf8d5c ("debugfs: take mode-dependent parts of
debugfs_get_inode() into callers")
Signed-off-by: Thomas Richter <tmri...@linux.ibm.com>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/debugfs/inode.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 13b01351dd1c..80618330d86a 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -512,7 +512,10 @@ struct dentry *debugfs_create_dir(const char *name, struct
dentry *parent)
if (unlikely(!inode))
return failed_creating(dentry);
- inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
+ if(!parent)
+ parent = debugfs_mount->mnt_root;
+ inode->i_mode = S_IFDIR | (d_inode(parent)->i_mode
+ & (S_IRWXU | S_IRWXG));
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
--
2.14.3
