xen/xsa168.patch
Charles Arnold 39134eb9d2 - bsc#962758 - VUL-0: CVE-2013-4539: xen: tsc210x: buffer overrun
on invalid state load
  CVE-2013-4539-qemut-tsc210x-fix-buffer-overrun-on-invalid-state-load.patch

- bsc#962632 - VUL-0: CVE-2015-1779: xen: vnc: insufficient
  resource limiting in VNC websockets decoder
  CVE-2015-1779-qemuu-limit-size-of-HTTP-headers-from-websockets-clients.patch
  CVE-2015-1779-qemuu-incrementally-decode-websocket-frames.patch
- bsc#962642 - VUL-0: CVE-2013-4537: xen: ssi-sd: buffer overrun on
  invalid state load
  CVE-2013-4537-qemut-ssi-sd-fix-buffer-overrun-on-invalid-state-load.patch
- bsc#962627 - VUL-0: CVE-2014-7815: xen: vnc: insufficient
  bits_per_pixel from the client sanitization
  CVE-2014-7815-qemut-vnc-sanitize-bits_per_pixel-from-the-client.patch

- bsc#962335 - VUL-0: CVE-2013-4538: xen: ssd0323: fix buffer
  overun on invalid state
  CVE-2013-4538-qemut-ssd0323-fix-buffer-overun-on-invalid-state.patch
- bsc#962360 - VUL-0: CVE-2015-7512: xen: net: pcnet: buffer
  overflow in non-loopback mode
  CVE-2015-7512-qemuu-net-pcnet-buffer-overflow-in-non-loopback-mode.patch
  CVE-2015-7512-qemut-net-pcnet-buffer-overflow-in-non-loopback-mode.patch

- bsc#961692 - VUL-0: CVE-2016-1714: xen: nvram: OOB r/w access in
  processing firmware configurations
  CVE-2016-1714-qemuu-fw_cfg-add-check-to-validate-current-entry-value.patch
  CVE-2016-1714-qemut-fw_cfg-add-check-to-validate-current-entry-value.patch

- bsc#961358 - VUL-0: CVE-2015-8613: xen: qemu: scsi: stack based
  buffer overflow in megasas_ctrl_get_info

OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=395
2016-01-20 16:26:32 +00:00

30 lines
1.1 KiB
Diff

x86/VMX: prevent INVVPID failure due to non-canonical guest address
While INVLPG (and on SVM INVLPGA) don't fault on non-canonical
addresses, INVVPID fails (in the "individual address" case) when passed
such an address.
Since such intercepted INVLPG are effectively no-ops anyway, don't fix
this in vmx_invlpg_intercept(), but instead have paging_invlpg() never
return true in such a case.
This is XSA-168.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Index: xen-4.6.0-testing/xen/include/asm-x86/paging.h
===================================================================
--- xen-4.6.0-testing.orig/xen/include/asm-x86/paging.h
+++ xen-4.6.0-testing/xen/include/asm-x86/paging.h
@@ -245,7 +245,7 @@ paging_fault(unsigned long va, struct cp
* or 0 if it's safe not to do so. */
static inline int paging_invlpg(struct vcpu *v, unsigned long va)
{
- return paging_get_hostmode(v)->invlpg(v, va);
+ return is_canonical_address(va) && paging_get_hostmode(v)->invlpg(v, va);
}
/* Translate a guest virtual address to the frame number that the