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c58b62eff4
freebsd-nq/sys
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Konstantin Belousov 3f7905d29c Prevent the overflow in the calculation of the next page directory. 
The overflow causes the wraparound with consequent corruption of the
(almost) whole address space mapping.

As Alan noted, pmap_copy() does not require the wrap-around checks
because it cannot be applied to the kernel's pmap. The checks there are
included for consistency.

Reported and tested by:	kris (i386/pmap.c:pmap_remove() part)
Reviewed by:	alc
MFC after:	1 week
2008-03-23 07:07:27 +00:00
..
amd64 Prevent the overflow in the calculation of the next page directory. 2008-03-23 07:07:27 +00:00
arm We need to prototype _start() as well, as we use it to test if we're running 2008-03-22 20:34:07 +00:00
boot style(9) & style.Makefile(9) 2008-03-13 17:54:21 +00:00
bsm
cam Locking in the ses_ioctl handler doesn't have to be so strict because 2008-03-17 17:18:16 +00:00
cddl In keeping with style(9)'s recommendations on macros, use a ';' 2008-03-16 10:58:09 +00:00
compat o Add stub support for some new futex operations, 2008-03-20 17:03:55 +00:00
conf - Restore runq to manipulating threads directly by putting runq links and 2008-03-20 05:51:16 +00:00
contrib In keeping with style(9)'s recommendations on macros, use a ';' 2008-03-16 10:58:09 +00:00
crypto Make test00 compilable again. 2008-01-15 18:34:47 +00:00
ddb Add a /S mode to DDB "ex" command, which interprets and prints the 2008-03-07 18:09:07 +00:00
dev MSI handling on some RealTek chips are broken so disable it by 2008-03-23 05:35:18 +00:00
fs - Complete part of the unfinished bufobj work by consistently using 2008-03-22 09:15:16 +00:00
gdb Commit SYSINIT() ;-adding patch missed in previous pass. 2008-03-16 13:02:04 +00:00
geom Redefine G_PART_SCHEME_DECLARE() from populating a private linker set 2008-03-23 01:31:59 +00:00
gnu Introduce some functions in the vnode locks namespace and in the ffs 2008-02-24 16:38:58 +00:00
i4b
i386 Prevent the overflow in the calculation of the next page directory. 2008-03-23 07:07:27 +00:00
ia64 Simplify the interrupt code a bit: 2008-03-17 22:42:01 +00:00
isa Use cpu_spinwait() (i.e., "pause") when spinning on rdtsc during DELAY(). 2008-01-17 18:59:38 +00:00
kern Remove commented out code, thread suspension is done in thread library. 2008-03-23 02:03:06 +00:00
libkern Add prototype for __cmpd2(). 2008-02-23 22:40:05 +00:00
modules Instead of making a single geom_part.ko module, make a module 2008-03-23 01:42:47 +00:00
net back out last change as Sam believes that it breaks multicast - need to revisit after following up with pyun 2008-03-20 06:19:34 +00:00
net80211 Fix adhoc mode to scan all available channels for a bss to join 2008-02-29 04:07:07 +00:00
netatalk
netatm In keeping with style(9)'s recommendations on macros, use a ';' 2008-03-16 10:58:09 +00:00
netgraph Remove impossible (hk_peer == NULL) check from ng_address_hook(). 2008-03-16 23:12:17 +00:00
netinet Explicitate the newpacket size. 2008-03-19 11:28:13 +00:00
netinet6 Correct IPsec behaviour with a 'use' level in SP but no SA available. 2008-03-14 16:38:11 +00:00
netipsec Add ';' missed with the SYSINIT changes. 2008-03-21 18:31:42 +00:00
netipx
netnatm
netncp - Handle buffer lock waiters count directly in the buffer cache instead 2008-03-01 19:47:50 +00:00
netsmb Remove unused vc_tnode field from struct smb_vc. 2008-03-10 14:55:34 +00:00
nfs
nfs4client - Complete part of the unfinished bufobj work by consistently using 2008-03-22 09:15:16 +00:00
nfsclient - Complete part of the unfinished bufobj work by consistently using 2008-03-22 09:15:16 +00:00
nfsserver - Complete part of the unfinished bufobj work by consistently using 2008-03-22 09:15:16 +00:00
opencrypto Make ftruncate a 'struct file' operation rather than a vnode operation. 2008-01-07 20:05:19 +00:00
pc98 In keeping with style(9)'s recommendations on macros, use a ';' 2008-03-16 10:58:09 +00:00
pccard
pci For MSI capable hardwares, enable MSI enable bit in RL_CFG2 2008-03-23 05:31:35 +00:00
powerpc Simplify the interrupt code a bit: 2008-03-17 22:42:01 +00:00
rpc
security In keeping with style(9)'s recommendations on macros, use a ';' 2008-03-16 10:58:09 +00:00
sparc64 Oops. Use atomic_add_long() for atomic_fetchadd_long() (not atomic_add_int()) 2008-03-19 07:27:24 +00:00
sun4v Oops. Use atomic_add_long() for atomic_fetchadd_long() (not atomic_add_int()) 2008-03-19 07:27:24 +00:00
sys - Complete part of the unfinished bufobj work by consistently using 2008-03-22 09:15:16 +00:00
tools Introduce a standalone shell script for embedding MFS image. 2008-02-05 10:46:30 +00:00
ufs - Complete part of the unfinished bufobj work by consistently using 2008-03-22 09:15:16 +00:00
vm Do not dereference cdev->si_cdevsw, use the dev_refthread() to properly 2008-03-20 16:08:42 +00:00
Makefile o Add boot, gdb, nfsserver and opencrypto dirs to CSCOPEDIRS; sort. 2008-01-23 08:50:34 +00:00