Simon L. B. Nielsen 27bfa95847 Do not allow mmap with the MAP_FIXED argument to map at address zero. ... This is done to make it harder to exploit kernel NULL pointer security vulnerabilities. While this of course does not fix vulnerabilities, it does mitigate their impact. Note that this may break some applications, most likely emulators or similar, which for one reason or another require mapping memory at zero. This restriction can be disabled with the security.bsd.mmap_zero sysctl variable. Discussed with: rwatson, bz Tested by: bz (Wine), simon (VirtualBox) Submitted by: jhb		2009-09-27 14:49:51 +00:00
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default_pager.c
device_pager.c	Extend the device pager to support different memory attributes on different	2009-08-28 14:06:55 +00:00
memguard.c
memguard.h
phys_pager.c
pmap.h
redzone.c
redzone.h
sg_pager.c	Mark the fake pages constructed by the OBJT_SG pager valid. This was	2009-08-29 02:17:40 +00:00
swap_pager.c
swap_pager.h
uma_core.c
uma_dbg.c
uma_dbg.h
uma_int.h
uma.h
vm_contig.c
vm_extern.h	Reintroduce the r196640, after fixing the problem with my testing.	2009-09-01 11:41:51 +00:00
vm_fault.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_glue.c	Reintroduce the r196640, after fixing the problem with my testing.	2009-09-01 11:41:51 +00:00
vm_init.c
vm_kern.c
vm_kern.h
vm_map.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_map.h
vm_meter.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_mmap.c	Do not allow mmap with the MAP_FIXED argument to map at address zero.	2009-09-27 14:49:51 +00:00
vm_object.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_object.h	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_page.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_page.h
vm_pageout.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_pageout.h
vm_pager.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_pager.h	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_param.h
vm_phys.c
vm_phys.h
vm_reserv.c
vm_reserv.h
vm_unix.c
vm_zeroidle.c
vm.h	Extend the device pager to support different memory attributes on different	2009-08-28 14:06:55 +00:00
vnode_pager.c
vnode_pager.h