Andy Lutomirski aa1acff356 x86/xen: Probe target addresses in set_aliased_prot() before the hypercall ... The update_va_mapping hypercall can fail if the VA isn't present in the guest's page tables. Under certain loads, this can result in an OOPS when the target address is in unpopulated vmap space. While we're at it, add comments to help explain what's going on. This isn't a great long-term fix. This code should probably be changed to use something like set_memory_ro. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: David Vrabel <dvrabel@cantab.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jan Beulich <jbeulich@suse.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: security@kernel.org <security@kernel.org> Cc: <stable@vger.kernel.org> Cc: xen-devel <xen-devel@lists.xen.org> Link: http://lkml.kernel.org/r/0b0e55b995cda11e7829f140b833ef932fcabe3a.1438291540.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2015-07-31 10:23:22 +02:00
..
boot	x86/efi: Use all 64 bit of efi_memmap in setup_e820()	2015-07-30 18:07:10 +01:00
configs	kconfig: add xenconfig defconfig helper	2015-06-16 11:04:29 +01:00
crypto	crypto: aesni - fix failing setkey for rfc4106-gcm-aesni	2015-06-29 16:06:30 +08:00
entry	x86/asm/entry/32: Revert 'Do not use R9 in SYSCALL32' commit	2015-07-24 16:36:00 +02:00
ia32	Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 17:59:09 -07:00
include	KVM: x86: rename quirk constants to KVM_X86_QUIRK_*	2015-07-23 08:24:42 +02:00
kernel	x86/irq: Use the caller provided polarity setting in mp_check_pin_attr()	2015-07-30 21:15:29 +02:00
kvm	KVM: x86: rename quirk constants to KVM_X86_QUIRK_*	2015-07-23 08:24:42 +02:00
lguest	Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 17:59:09 -07:00
lib	perf/x86: Fix copy_from_user_nmi() return if range is not ok	2015-07-06 14:09:27 +02:00
math-emu	x86/fpu: Harmonize FPU register state types	2015-05-19 15:48:09 +02:00
mm	x86/mm/pat: Revert 'Adjust default caching mode translation tables'	2015-07-26 10:27:37 +02:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-06-24 16:49:49 -07:00
oprofile
pci	PCI changes for the v4.2 merge window:	2015-06-23 13:41:24 -07:00
platform	efi: Check for NULL efi kernel parameters	2015-07-30 18:07:11 +01:00
power	Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 17:59:09 -07:00
purgatory
realmode
tools
um	Merge branch 'for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml	2015-06-28 13:55:08 -07:00
video
xen	x86/xen: Probe target addresses in set_aliased_prot() before the hypercall	2015-07-31 10:23:22 +02:00
.gitignore
Kbuild	x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/	2015-06-03 18:51:37 +02:00
Kconfig	x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86	2015-07-18 03:42:51 +02:00
Kconfig.cpu
Kconfig.debug	x86/entry/64, x86/nmi/64: Add CONFIG_DEBUG_ENTRY NMI testing code	2015-07-17 12:50:14 +02:00
Makefile	x86/asm/entry: Move the arch/x86/syscalls/ definitions to arch/x86/entry/syscalls/	2015-06-04 07:37:37 +02:00
Makefile_32.cpu
Makefile.um