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-rw-r--r--fs/sysfs/group.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 3fdccd99a9d9..b400c04371f0 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -55,6 +55,12 @@ static int create_files(struct kernfs_node *parent, struct kobject *kobj,
if (!mode)
continue;
}
+
+ WARN(mode & ~(SYSFS_PREALLOC | 0664),
+ "Attribute %s: Invalid permissions 0%o\n",
+ (*attr)->name, mode);
+
+ mode &= SYSFS_PREALLOC | 0664;
error = sysfs_add_file_mode_ns(parent, *attr, false,
mode, NULL);
if (unlikely(error))