• Alexey Dobriyan's avatar
    proc: add and remove /proc entry create checks · dbcdb504
    Alexey Dobriyan authored
    * remove proc_create(NULL, ...) check, let it oops
    
    * warn about proc_create("", ...) and proc_create("very very long name", ...)
      proc code keeps length as u8, no 256+ name length possible
    
    * warn about proc_create("123", ...)
      /proc/$PID and /proc/misc namespaces are separate things,
      but dumb module might create funky a-la $PID entry.
    
    * remove post mortem strchr('/') check
      Triggering it implies either strchr() is buggy or memory corruption.
      It should be VFS check anyway.
    
    In reality, none of these checks will ever trigger,
    it is preparation for the next patch.
    
    Based on patch from Al Viro.
    Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    dbcdb504
fd.c 7.47 KB