On Tue, Aug 28, 2012 at 3:09 PM, swair shah <swairshah@xxxxxxxxx> wrote: > I don't understand the use of the mmap_min_add. What's the point of > preventing applications from mapping to low memory values. do you ever cross into NULL pointer problem? now imagine, if that "NULL" points to something malicious, say....exploit code..... what would happen? >Also why would > applications mentioned here would need to map to low memory addresses? A > little descriptive explanation would be very helpful! AFAIK, that's because they need to map something....likely to emulate real "memory" condition. In case of qemu, (maybe I am wrong here), I guess low memory is use to map SeaBIOS or any other software BIOS. Other people might be more knowledgeable than me on this area.... -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
