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f3747379ac
linux/arch/x86
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Nadav Amit f3747379ac KVM: x86: SYSENTER emulation is broken 
SYSENTER emulation is broken in several ways:
1. It misses the case of 16-bit code segments completely (CVE-2015-0239).
2. MSR_IA32_SYSENTER_CS is checked in 64-bit mode incorrectly (bits 0 and 1 can
   still be set without causing #GP).
3. MSR_IA32_SYSENTER_EIP and MSR_IA32_SYSENTER_ESP are not masked in
   legacy-mode.
4. There is some unneeded code.

Fix it.

Cc: stable@vger.linux.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-23 13:57:15 +01:00
..
boot x86/build: Clean auto-generated processor feature files 2014-12-23 15:37:06 +01:00
configs x86/kconfig/defconfig: Enable CONFIG_FHANDLE=y 2014-12-08 12:04:17 +01:00
crypto crypto: sha-mb - Add avx2_supported check. 2015-01-05 21:35:02 +11:00
ia32 x86: hook up execveat system call 2014-12-13 12:42:51 -08:00
include This is hopefully the last vdso fix for 3.19. It should be very 2015-01-01 22:21:22 +01:00
kernel Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-01-18 06:24:30 +12:00
kvm KVM: x86: SYSENTER emulation is broken 2015-01-23 13:57:15 +01:00
lguest x86: Avoid building unused IRQ entry stubs 2014-12-16 14:08:14 +01:00
lib x86: Fix off-by-one in instruction decoder 2015-01-09 11:12:26 +01:00
math-emu
mm x86: Fix step size adjustment during initial memory mapping 2014-12-23 11:39:34 +01:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-12-10 15:48:20 -05:00
oprofile percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t 2014-08-28 08:58:57 -04:00
pci Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-19 14:02:02 -08:00
platform Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-19 14:02:02 -08:00
power nosave: consolidate __nosave_{begin,end} in <asm/sections.h> 2014-10-09 22:26:04 -04:00
purgatory Merge branches 'x86-build-for-linus', 'x86-cleanups-for-linus' and 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-10 12:35:46 -08:00
realmode
syscalls x86: hook up execveat system call 2014-12-13 12:42:51 -08:00
tools Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-10 12:10:24 -08:00
um x86, um: actually mark system call tables readonly 2015-01-04 14:21:25 +01:00
vdso x86_64, vdso: Fix the vdso address randomization algorithm 2014-12-20 16:56:57 -08:00
video
xen xen: bug fixes for 3.19-rc4 2015-01-14 08:07:42 +13:00
.gitignore x86/build: Add arch/x86/purgatory/ make generated files to gitignore 2014-10-09 09:29:46 +02:00
Kbuild kexec: create a new config option CONFIG_KEXEC_FILE for new syscall 2014-08-29 16:28:16 -07:00
Kconfig Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-19 14:02:02 -08:00
Kconfig.cpu
Kconfig.debug
Makefile Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 18:17:33 +02:00
Makefile_32.cpu
Makefile.um