* sysctl entries that are not writeable,
* are _NOT_ writeable, capabilities or not.
*/
- struct ctl_table_header *head = grab_header(inode);
- struct ctl_table *table = PROC_I(inode)->sysctl_entry;
+ struct ctl_table_header *head;
+ struct ctl_table *table;
int error;
+ /* Executable files are not allowed under /proc/sys/ */
+ if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode))
+ return -EACCES;
+
+ head = grab_header(inode);
if (IS_ERR(head))
return PTR_ERR(head);
+ table = PROC_I(inode)->sysctl_entry;
if (!table) /* global root - r-xr-xr-x */
error = mask & MAY_WRITE ? -EACCES : 0;
else /* Use the permissions on the sysctl table entry */