Yes it can be valid. However there may be purpose to have data there and accessibly but because it's a virtual address it may not have any data mapped to it thus it is invalid. > -----Original Message----- > From: kernelnewbies-bounce@xxxxxxxxxxxx [mailto:kernelnewbies- > bounce@xxxxxxxxxxxx] On Behalf Of Ramagudi Naziir > Sent: 03 January 2007 10:22 > To: kernelnewbies > Subject: NULL dereference ? why not ? > > Hello. > > I want to ask why NULL dereference is never valid. > Why isn't it possible that an application will have some data at > virtual address zero ? > is it platform-specific issue or is it by-design in linux ? > > Thank You > naziir > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
