H. Peter Anvin c41d68a513 compat: Make compat_alloc_user_space() incorporate the access_ok() ... compat_alloc_user_space() expects the caller to independently call access_ok() to verify the returned area. A missing call could introduce problems on some architectures. This patch incorporates the access_ok() check into compat_alloc_user_space() and also adds a sanity check on the length. The existing compat_alloc_user_space() implementations are renamed arch_compat_alloc_user_space() and are used as part of the implementation of the new global function. This patch assumes NULL will cause __get_user()/__put_user() to either fail or access userspace on all architectures. This should be followed by checking the return value of compat_access_user_space() for NULL in the callers, at which time the access_ok() in the callers can also be removed. Reported-by: Ben Hawkes <hawkes@sota.gen.nz> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Tony Luck <tony.luck@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: James Bottomley <jejb@parisc-linux.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: <stable@kernel.org>		2010-09-14 16:08:45 -07:00
..
iseries
8xx_immap.h
8253pit.h
abs_addr.h	Merge commit 'gcl/next' into next	2010-08-04 10:26:03 +10:00
agp.h
asm-compat.h	powerpc: Emulate most Book I instructions in emulate_step()	2010-06-22 19:40:29 +10:00
asm-offsets.h	kbuild: move asm-offsets.h to include/generated	2009-12-12 13:08:14 +01:00
async_tx.h	ppc440spe-adma: adds updated ppc440spe adma driver	2009-12-11 21:24:44 -07:00
atomic.h	powerpc: Rename LWSYNC_ON_SMP to PPC_RELEASE_BARRIER, ISYNC_ON_SMP to PPC_ACQUIRE_BARRIER	2010-02-17 14:03:15 +11:00
auxvec.h
backlight.h
bitops.h	powerpc: Rename LWSYNC_ON_SMP to PPC_RELEASE_BARRIER, ISYNC_ON_SMP to PPC_ACQUIRE_BARRIER	2010-02-17 14:03:15 +11:00
bitsperlong.h
bootx.h
btext.h
bug.h	panic: Allow warnings to set different taint flags	2010-05-19 08:36:48 +01:00
bugs.h
byteorder.h
cache.h	Merge branch 'for-35' of git://repo.or.cz/linux-kbuild	2010-06-01 08:55:52 -07:00
cacheflush.h	block: add helpers to run flush_dcache_page() against a bio and a request's pages	2009-11-26 09:16:19 +01:00
cell-pmu.h
cell-regs.h
checksum.h
clk_interface.h
code-patching.h
compat.h	compat: Make compat_alloc_user_space() incorporate the access_ok()	2010-09-14 16:08:45 -07:00
cpm.h	powerpc/cpm: Reintroduce global spi_pram struct (fixes build issue)	2010-07-11 11:03:22 -05:00
cpm1.h	powerpc/cpm1: Mark micropatch code/data static and __init	2010-07-11 11:04:06 -05:00
cpm2.h	powerpc/cpm: Move CPMFCR_* defines into cpm.h	2009-11-11 21:43:19 -06:00
cputable.h	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-08-06 09:39:22 -07:00
cputhreads.h
cputime.h	powerpc: Replace per_cpu(, smp_processor_id()) with __get_cpu_var()	2010-02-03 17:39:48 +11:00
current.h
dbdma.h
dbell.h	powerpc/book3e: Resend doorbell exceptions to ourself	2010-07-09 16:11:19 +10:00
dcr-generic.h
dcr-mmio.h
dcr-native.h
dcr-regs.h	ppc440spe-adma: adds updated ppc440spe adma driver	2009-12-11 21:24:44 -07:00
dcr.h
delay.h
device.h	arch/powerpc: Move dma_mask from of_device into pdev_archdata	2010-05-22 00:10:40 -06:00
disassemble.h
div64.h
dma-mapping.h	dma-mapping: remove dma_is_consistent API	2010-08-11 08:59:21 -07:00
dma.h
edac.h
eeh.h
eeh_event.h
elf.h	powerpc: TIF_ABI_PENDING bit removal	2010-02-01 14:00:30 +11:00
emergency-restart.h
emulated_ops.h	powerpc: perf_event: Add alignment-faults and emulation-faults software events	2009-10-28 16:13:03 +11:00
errno.h
exception-64e.h
exception-64s.h	Make head_64.S aware of KVM real mode code	2009-11-05 16:49:57 +11:00
fb.h
fcntl.h
feature-fixups.h	powerpc: Fix lwsync feature fixup vs. modules on 64-bit	2010-02-26 18:29:17 +11:00
firmware.h	powerpc: Fix hypervisor TLB batching	2009-10-14 16:58:37 +11:00
fixmap.h	powerpc: reserve fixmap entries for early debug	2009-12-12 22:24:30 -07:00
floppy.h
fs_pd.h
fsl_gtm.h
fsl_lbc.h
fsldma.h	arch/powerpc/include/asm/fsldma.h needs slab.h	2010-09-09 18:57:24 -07:00
ftrace.h
futex.h	powerpc: Rename LWSYNC_ON_SMP to PPC_RELEASE_BARRIER, ISYNC_ON_SMP to PPC_ACQUIRE_BARRIER	2010-02-17 14:03:15 +11:00
gpio.h	powerpc/gpio: support gpio_to_irq()	2009-12-10 20:08:15 -06:00
grackle.h
hardirq.h	powerpc: Convert global "BAD" interrupt to per cpu spurious	2010-02-17 14:02:49 +11:00
heathrow.h
highmem.h	kmap_atomic: make kunmap_atomic() harder to misuse	2010-08-09 20:44:54 -07:00
hugetlb.h	powerpc/mm: Bring hugepage PTE accessor functions back into sync with normal accessors	2009-10-30 17:21:23 +11:00
hvcall.h	powerpc/pseries: Migration code reorganization / hibernation prep	2010-07-09 11:26:17 +10:00
hvconsole.h
hvcserver.h
hw_breakpoint.h	powerpc, hw_breakpoint: Tell generic code we have no instruction breakpoints	2010-06-30 13:54:58 +10:00
hw_irq.h	powerpc/perf_event: Fix oops due to perf_event_do_pending call	2010-05-12 14:34:00 +10:00
hydra.h
i8259.h
ibmebus.h
ide.h
immap_86xx.h
immap_cpm2.h	powerpc/qe&cpm2: Avoid redefinitions in CPM2 and QE headers	2009-11-11 21:43:18 -06:00
immap_qe.h	powerpc/qe&cpm2: Avoid redefinitions in CPM2 and QE headers	2009-11-11 21:43:18 -06:00
io-defs.h
io.h
ioctl.h
ioctls.h	tty: Add EXTPROC support for LINEMODE	2010-08-10 13:47:39 -07:00
iommu.h
ipcbuf.h
ipic.h
irq.h	Merge commit 'v2.6.35-rc6' into devicetree/next	2010-07-24 09:49:13 -06:00
irq_regs.h
irqflags.h
Kbuild	archs: replace unifdef-y with header-y	2010-08-14 22:26:51 +02:00
kdebug.h
kdump.h	powerpc: Move kdump default base address to 64MB on 64bit	2010-06-15 15:02:32 +10:00
kexec.h	powerpc/kexec: Fix boundary case for book-e kexec memory limits	2010-07-22 13:31:14 -05:00
keylargo.h
kgdb.h
kmap_types.h	kdb: core for kgdb back end (2 of 2)	2010-05-20 21:04:21 -05:00
kprobes.h
kvm.h	KVM: PPC: Allow userspace to unset the IRQ line	2010-05-17 12:16:51 +03:00
kvm_44x.h
kvm_asm.h	KVM: PPC: Enable native paired singles	2010-05-17 12:19:08 +03:00
kvm_book3s.h	KVM: PPC: Make use of hash based Shadow MMU	2010-08-01 10:47:28 +03:00
kvm_book3s_32.h	KVM: PPC: Add kvm_book3s_32.h	2010-05-17 12:18:23 +03:00
kvm_book3s_64.h	KVM: PPC: Add kvm_book3s_64.h	2010-05-17 12:18:21 +03:00
kvm_book3s_asm.h	KVM: PPC: Use KVM_BOOK3S_HANDLER	2010-05-17 12:18:28 +03:00
kvm_booke.h	KVM: PPC: Improve indirect svcpu accessors	2010-05-17 12:18:26 +03:00
kvm_e500.h	KVM: PPC E500: fix tlbcfg emulation	2010-03-01 12:36:06 -03:00
kvm_fpu.h	KVM: PPC: elide struct thread_struct instances from stack	2010-08-01 10:39:24 +03:00
kvm_host.h	KVM: Remove unnecessary divide operations	2010-08-01 10:47:30 +03:00
kvm_para.h
kvm_ppc.h	KVM: PPC: Extract MMU init	2010-05-17 12:18:34 +03:00
libata-portmap.h
linkage.h
local.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2010-03-03 07:34:18 -08:00
local64.h	arch: Implement local64_t	2010-06-09 11:12:36 +02:00
lppaca.h	powerpc/pseries: Add extended_cede_processor() helper function.	2009-11-24 14:33:03 +11:00
lv1call.h
machdep.h	powerpc/book3e: Add generic 64-bit idle powersave support	2010-07-14 14:13:18 +10:00
macio.h	of/device: Replace of_device with platform_device in includes and core code	2010-07-24 09:58:21 -06:00
mc146818rtc.h
mediabay.h	powerpc/macio: Rework hotplug media bay support	2009-12-09 17:09:14 +11:00
memblock.h	lmb: rename to memblock	2010-07-14 17:14:00 +10:00
mman.h
mmu-8xx.h
mmu-40x.h
mmu-44x.h	powerpc/47x: Base ppc476 support	2010-05-05 09:11:10 -04:00
mmu-book3e.h	powerpc/book3e: Adjust the page sizes list based on MMU config	2010-07-14 14:13:53 +10:00
mmu-hash32.h
mmu-hash64.h	powerpc/mm: Fix vsid_scrample typo	2010-08-24 15:26:27 +10:00
mmu.h	powerpc/47x: Base ppc476 support	2010-05-05 09:11:10 -04:00
mmu_context.h	PPC: Split context init/destroy functions	2010-05-17 12:18:20 +03:00
mmzone.h	powerpc/cpumask: Convert NUMA code to new cpumask API	2010-05-06 17:41:58 +10:00
module.h	module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y	2009-12-15 16:28:34 +10:30
mpc5xxx.h
mpc6xx.h
mpc8xx.h
mpc52xx.h	powerpc/5200: add mpc5200_psc_ac97_gpio_reset	2010-08-06 20:49:18 -06:00
mpc52xx_psc.h	powerpc/5200: add mpc5200_psc_ac97_gpio_reset	2010-08-06 20:49:18 -06:00
mpc5121.h	powerpc/5121: shared DIU framebuffer support	2010-08-01 17:06:44 -06:00
mpc8260.h
mpic.h	powerpc/cpumask: Convert mpic driver to new cpumask API	2010-05-06 18:01:46 +10:00
msgbuf.h
msi_bitmap.h
mutex.h	powerpc: Rename LWSYNC_ON_SMP to PPC_RELEASE_BARRIER, ISYNC_ON_SMP to PPC_ACQUIRE_BARRIER	2010-02-17 14:03:15 +11:00
nvram.h	powerpc/nvram_64: Remove unused code	2009-10-30 17:21:28 +11:00
ohare.h
oprofile_impl.h
paca.h	powerpc/kexec: Switch to a static PACA on the way out	2010-07-31 14:56:30 +10:00
page.h	powerpc/fsl-booke: Fix CONFIG_RELOCATABLE support on FSL Book-E ppc32	2010-04-26 17:54:15 -05:00
page_32.h	dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN	2010-08-11 08:59:21 -07:00
page_64.h	powerpc: remove unused __page_aligned definition.	2010-03-03 11:25:58 +01:00
param.h	powerpc: Simplify param.h by including <asm-generic/param.h>	2010-02-03 17:39:48 +11:00
parport.h	powerpc: Correct parport interrupt parsing	2010-05-06 16:49:26 +10:00
pasemi_dma.h
pci-bridge.h	of/address: merge of_address_to_resource()	2010-07-05 16:14:26 -06:00
pci.h	pci-dma: add linux/pci-dma.h to linux/pci.h	2010-03-12 15:52:42 -08:00
percpu.h	powerpc: Optimise per cpu accesses on 64bit	2010-07-09 11:28:30 +10:00
perf_event.h	perf: Drop the skip argument from perf_arch_fetch_regs_caller	2010-06-08 23:31:27 +02:00
perf_event_fsl_emb.h	powerpc/perf: e500 support	2010-03-05 03:04:08 -06:00
perf_event_server.h	powerpc/perf: e500 support	2010-03-05 03:04:08 -06:00
pgalloc-32.h	powerpc/mm: Cleanup management of kmem_caches for pagetables	2009-10-30 17:20:57 +11:00
pgalloc-64.h	powerpc/mm: Track backing pages allocated by vmemmap_populate()	2010-05-06 16:49:27 +10:00
pgalloc.h	powerpc/mm: Cleanup management of kmem_caches for pagetables	2009-10-30 17:20:57 +11:00
pgtable-ppc32.h	powerpc/ppc32: Fixup pmd_page to work when ARCH_PFN_OFFSET is non-zero	2010-04-07 18:00:30 +10:00
pgtable-ppc64-4k.h
pgtable-ppc64-64k.h
pgtable-ppc64.h	powerpc/mm: Allow more flexible layouts for hugepage pagetables	2009-10-30 17:20:58 +11:00
pgtable.h	MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself	2010-02-20 16:41:46 +00:00
phyp_dump.h
pmac_feature.h	powerpc: Convert feature_lock to raw_spinlock	2010-02-19 14:52:32 +11:00
pmac_low_i2c.h	i2c-powermac: Include the i2c_adapter in struct pmac_i2c_bus	2009-12-06 17:06:19 +01:00
pmac_pfunc.h
pmc.h
pmi.h
poll.h
posix_types.h
ppc-opcode.h	powerpc: Emulate most Book I instructions in emulate_step()	2010-06-22 19:40:29 +10:00
ppc-pci.h	powerpc/eeh: Fix a bug when pci structure is null	2010-02-17 14:02:47 +11:00
ppc4xx.h
ppc_asm.h
processor.h	powerpc, hw_breakpoints: Implement hw_breakpoints for 64-bit server processors	2010-06-22 19:40:50 +10:00
prom.h	of/address: Clean up function declarations	2010-08-01 01:42:42 -06:00
ps3.h
ps3av.h
ps3fb.h
ps3gpu.h
ps3stor.h
pSeries_reconfig.h	powerpc/pseries: Kernel DLPAR Infrastructure	2009-12-09 17:09:32 +11:00
pte-8xx.h	powerpc/8xx: Restore _PAGE_WRITETHRU	2009-12-09 17:10:37 +11:00
pte-40x.h
pte-44x.h
pte-book3e.h
pte-common.h
pte-fsl-booke.h
pte-hash32.h
pte-hash64-4k.h
pte-hash64-64k.h	powerpc/mm: Fix pgtable cache cleanup with CONFIG_PPC_SUBPAGE_PROT	2009-12-08 15:59:33 +11:00
pte-hash64.h
ptrace.h	powerpc: Fix userspace build of ptrace.h	2010-07-08 18:11:46 +10:00
qe.h	powerpc/qe&cpm: Implement static inline stubs for non-QE/CPM builds	2009-11-11 21:43:20 -06:00
qe_ic.h
reg.h	powerpc: Inline ppc64_runlatch_off	2010-08-24 15:26:30 +10:00
reg_8xx.h
reg_booke.h	powerpc/book3e: Adjust the page sizes list based on MMU config	2010-07-14 14:13:53 +10:00
reg_fsl_emb.h	powerpc/perf: e500 support	2010-03-05 03:04:08 -06:00
resource.h
rheap.h
rio.h
rtas.h	powerpc/pseries: Rename RAS_VECTOR_OFFSET to RTAS_VECTOR_EXTERNAL_INTERRUPT and move to rtas.h	2010-07-09 11:28:31 +10:00
rtc.h
rwsem.h	powerpc: Make rwsem use "long" type	2010-08-24 14:41:48 +10:00
scatterlist.h	remove needless ISA_DMA_THRESHOLD	2010-08-07 18:15:50 +02:00
seccomp.h
sections.h
sembuf.h
serial.h
setjmp.h
setup.h
sfp-machine.h	Revert "endian: #define __BYTE_ORDER"	2010-05-26 08:30:15 -07:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
smp.h	powerpc/cpumask: Dynamically allocate cpu_sibling_map and cpu_core_map cpumasks	2010-05-06 17:41:56 +10:00
smu.h	of: kill struct of_device	2010-06-28 12:41:33 -07:00
socket.h
sockios.h
sparsemem.h	Revert "powerpc/mm: Bump SECTION_SIZE_BITS from 16MB to 256MB"	2010-04-13 13:54:39 +10:00
spinlock.h	powerpc: Rename LWSYNC_ON_SMP to PPC_RELEASE_BARRIER, ISYNC_ON_SMP to PPC_ACQUIRE_BARRIER	2010-02-17 14:03:15 +11:00
spinlock_types.h	locking: Convert raw_rwlock to arch_rwlock	2009-12-14 23:55:32 +01:00
spu.h
spu_csa.h
spu_info.h
spu_priv1.h
sstep.h
stat.h
statfs.h
string.h
suspend.h
swab.h
swiotlb.h
synch.h	powerpc: Use lwsync for acquire barrier if CPU supports it	2010-02-17 14:03:16 +11:00
syscall.h	powerpc: Use correct ccr bit for syscall error status	2010-03-19 16:38:16 +11:00
syscalls.h	improve sys_newuname() for compat architectures	2010-03-12 15:52:32 -08:00
systbl.h	powerpc: Wire up fanotify_init, fanotify_mark, prlimit64 syscalls	2010-08-24 15:28:28 +10:00
system.h	net: NET_SKB_PAD should depend on L1_CACHE_BYTES	2010-06-15 18:16:43 -07:00
tce.h
termbits.h	tty: Add EXTPROC support for LINEMODE	2010-08-10 13:47:39 -07:00
termios.h
thread_info.h	add descriptive comment for TIF_MEMDIE task flag declaration.	2010-05-14 11:13:27 +02:00
time.h	powerpc: Clean up obsolete code relating to decrementer and timebase	2010-07-09 11:26:16 +10:00
timex.h
tlb.h
tlbflush.h
topology.h	Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6	2010-08-05 15:57:35 -07:00
trace.h	powerpc: tracing: Give hypervisor call tracepoints access to arguments	2009-10-28 16:13:04 +11:00
tsi108.h
tsi108_irq.h
tsi108_pci.h
types.h
uaccess.h
ucc.h
ucc_fast.h
ucc_slow.h
ucontext.h
udbg.h	powerpc: gamecube/wii: early debugging using usbgecko	2009-12-12 22:24:31 -07:00
uic.h
unaligned.h
uninorth.h
unistd.h	powerpc: Wire up fanotify_init, fanotify_mark, prlimit64 syscalls	2010-08-24 15:28:28 +10:00
user.h
vdso.h
vdso_datapage.h	powerpc: Rework VDSO gettimeofday to prevent time going backwards	2010-07-09 11:26:16 +10:00
vga.h
vio.h
xilinx_intc.h
xilinx_pci.h
xmon.h
xor.h