Supported Xen Project 4.7 Series

Categories

Xen Project 4.7.0

Release Information

The Xen Project 4.7 release incorporates many new features and improvements to existing features.

Documentation

For Xen Project 4.7 documentation see

Contribution Acknowledgements

For a breakdown of contributions to Xen 4.7 check out the Xen Project 4.7 Acknowledgements.

Xen Project 4.7.1

We are pleased to announce the release of Xen 4.7.1. This is available immediately from its git repository 

https://xenbits.xenproject.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.7 (tag RELEASE-4.7.1) or from this download page

This release contains the following bug-fixes and improvements in the Xen Project hypervisor:

  • 86f912c: update Xen version to 4.7.1 [Jan Beulich]
  • 5bcf70d: x86: MISALIGNSSE feature depends on SSE [Jan Beulich]
  • 013bced: vscsiif.h: replace PAGE_SIZE with VSCSIIF_PAGE_SIZE [Stefano Stabellini]
  • ebb883c: usbif.h: replace PAGE_SIZE with USBIF_RING_SIZE [Stefano Stabellini]
  • 37fd694: x86/Viridian: don't depend on undefined register state [Jan Beulich]
  • 7bbea96: x86emul: fix pushing of selector registers [Jan Beulich]
  • a91344a: x86/hvm: Clobber %cs.L when LME becomes set [Andrew Cooper]
  • 2b593c9: xen/trace: Fix trace metadata page count calculation (revert fbf96e6) [George Dunlap]
  • 4b323ed: x86: defer not-present segment checks [Jan Beulich]
  • c26fc22: xen: credit1: return the 'time remaining to the limit' as next timeslice. [Dario Faggioli]
  • 3903db1: x86emul: honor guest CR0.TS and CR0.EM [Jan Beulich]
  • 506182e: x86/AMD: apply erratum 665 workaround [Emanuel Czirai]
  • 33c4ba9: x86emul: don't allow null selector for LTR [Jan Beulich]
  • ccae454: x86emul: correct loading of %ss [Jan Beulich]
  • dc57c17: x86/Intel: hide CPUID faulting capability from guests [Jan Beulich]
  • 2d939ee: xen: credit2: properly schedule migration of a running vcpu. [Dario Faggioli]
  • 24a1b18: xen: credit1: fix mask to be used for tickling in Credit1 [Dario Faggioli]
  • 1983d58: x86/domctl: Fix migration of guests which are not using xsave [Andrew Cooper]
  • d515e86: x86/domctl: Fix TOCTOU race with the use of XEN_DOMCTL_getvcpuextstate [Andrew Cooper]
  • a7edbdc: QEMU_TAG update [Ian Jackson]
  • 317eb71: libxl: do not assume Dom0 backend while getting nic info [Marek Marczykowski-Górecki]
  • 7e17174: tools/migrate: Prevent PTE truncation from being fatal duing the live phase [Andrew Cooper]
  • 0e22f29: libxl: fix libxl_device_usbdev_list() [Juergen Gross]
  • b549cbd: libxc: correct max_pfn calculation for saving domain [Juergen Gross]
  • 038aadd: Revert "x86/hvm: Perform a user instruction fetch for a FEP in userspace" [Jan Beulich]
  • 5c816c7: x86/segment: Bounds check accesses to emulation ctxt->seg_reg[] [Andrew Cooper]
  • 129099b: x86/hvm: Perform a user instruction fetch for a FEP in userspace [Andrew Cooper]
  • f515565: hvm/fep: Allow testing of instructions crossing the -1 -> 0 virtual boundary [Andrew Cooper]
  • c01565b: VMX: correct feature checks for MPX and XSAVES [Jan Beulich]
  • 0c9b942: x86/shadow: Avoid overflowing sh_ctxt->seg_reg[] [Andrew Cooper]
  • cb3397a: x86/emulate: Correct boundary interactions of emulated instructions [Andrew Cooper]
  • 6825f37: x86/32on64: don't allow recursive page tables from L3 [Jan Beulich]
  • dbeb5da: memory: fix compat handling of XENMEM_access_op [Jan Beulich]
  • 9d2ede8: x86/PV: make PMU MSR handling consistent [Jan Beulich]
  • ba1f4a4: x86: correct PT_NOTE file position [Jan Beulich]
  • 4f610f2: credit1: fix a race when picking initial pCPU for a vCPU [Dario Faggioli]
  • 7743e91: x86/32on64: misc adjustments to call gate emulation [Jan Beulich]
  • 93429d2: x86/levelling: Provide architectural OSXSAVE handling to masked native CPUID [Andrew Cooper]
  • b80d7eb: x86/levelling: Pass a vcpu rather than a domain to ctxt_switch_levelling() [Andrew Cooper]
  • fb87d02: x86/levelling: Restrict non-architectural OSXSAVE handling to emulated CPUID [Andrew Cooper]
  • ed48c80: passthrough: fix a BUG_ON issue [Feng Wu]
  • dbaf2c8: x86/HVM: add guarding logic for VMX specific code [Suravee Suthikulpanit]
  • 80bc435: xen/physmap: Do not permit a guest to populate PoD pages for itself [Andrew Cooper]
  • fd7306f: x86/EFI: don't apply relocations to l{2,3}_bootmap [Jan Beulich]
  • 5b5abe1: page-alloc/x86: don't restrict DMA heap to node 0 [Jan Beulich]
  • 8224649: libxl: return any serial tty path in libxl_console_get_tty [Bob Liu]
  • de781b4: tools/libxc: Properly increment ApicIdCoreSize field on AMD [Boris Ostrovsky]
  • ab75cdf: libxenstat: honour XEN_RUN_DIR [Wei Liu]
  • 78a3010: xl: correct xl cpupool-numa-split with vcpu limited dom0 [Juergen Gross]
  • f2160ba: x86/mmcfg: Fix initalisation of variables in pci_mmcfg_nvidia_mcp55() [Andrew Cooper]
  • 471a151: xen: Remove buggy initial placement algorithm [George Dunlap]
  • c732d3c: xen: Have schedulers revise initial placement [George Dunlap]
  • d37c2b9: x86/EFI + Live Patch: avoid symbol address truncation [Jan Beulich]
  • 899495b: x86/entry: Avoid SMAP violation in compat_create_bounce_frame() [Andrew Cooper]
  • b1ba8c0: x86/pv: Remove unsafe bits from the mod_l?_entry() fastpath [Andrew Cooper]
  • a492556: MAINTAINERS: name stable tree maintainers [Jan Beulich]
  • 22ec349: sched: use default scheduler upon an invalid "sched=" [Dario Faggioli]
  • df39cfa: nested vmx: Validate host VMX MSRs before accessing them [Euan Harris]
  • 11e3c4a: update Xen version to 4.7.1-pre [Jan Beulich]
  • 78c7331: README: Update version to 4.7 (from 4.7.0) [Ian Jackson]

In addition, this release also contains the following fixes to qemu-traditional:

  • 8111145: virtio: error out if guest exceeds virtqueue size [P J P]

This release also contains changes to qemu-upstream, whose changelogs we do not list here as it contains many changes that are not directly releated to the Xen Project Hypervisor and thus this release. However, you can check https://xenbits.xenproject.org/gitweb/?p=qemu-xen.git;a=shortlog (between tags qemu-xen-4.7.0 and qemu-xen-4.7.1).

This release, which includes source code for qemu-traditional and qemu-upstream, contains the following security fixes. 

XSA Xen qemu-traditional qemu-upstream 
XSA-182 Applied N/A N/A
XSA-183 Applied N/A N/A
XSA-184 N/A Applied Applied
XSA-185 Applied N/A N/A
XSA-186 Applied N/A N/A
XSA-187 Applied N/A N/A
XSA-188 N/A (Xen 4.7 not vulnerable) ... ...
XSA-189 N/A (Unused XSA number) ... ...
XSA-190 Applied N/A N/A


See https://xenbits.xenproject.org/xsa/ for details related to Xen Project security advisories.

We recommend all users of the 4.7 stable series to update to this latest point release.

Xen Project 4.7.2

We are pleased to announce the release of Xen 4.7.2. This is available immediately from its git repository 

https://xenbits.xenproject.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.7 (tag RELEASE-4.7.2) or from this download page

This release contains the following bug-fixes and improvements in the Xen Project hypervisor:

  • 3905d1e: update Xen version to 4.7.2 [Jan Beulich]
  • 8550b69: xen: fix a (latent) cpupool-related race during domain destroy [Dario Faggioli]
  • 500efc8: QEMU_TAG update [Ian Jackson]
  • 8a9dfe3: VMX: fix VMCS race on context-switch paths [Jan Beulich]
  • 19d4e55: xen/p2m: Fix p2m_flush_table for non-nested cases [George Dunlap]
  • ad19a51: x86/ept: allow write-combining on !mfn_valid() MMIO mappings again [David Woodhouse]
  • 19addfa: xen: credit2: never consider CPUs outside of our cpupool. [Dario Faggioli]
  • d9dec41: x86/VT-x: Dump VMCS on VMLAUNCH/VMRESUME failure [Andrew Cooper]
  • 7583782: IOMMU: always call teardown callback [Oleksandr Tyshchenko]
  • d31a0a2: x86/emulate: don't assume that addr_size == 32 implies protected mode [George Dunlap]
  • 5bc9c62: xen: credit2: fix shutdown/suspend when playing with cpupools. [Dario Faggioli]
  • 1f2fe76: xen: credit2: use the correct scratch cpumask. [Dario Faggioli]
  • 386acdb: x86/hvm: do not set msr_tsc_adjust on hvm_set_guest_tsc_fixed [Joao Martins]
  • 5cadc66: x86: segment attribute handling adjustments [Jan Beulich]
  • 67d0d5e: x86emul: LOCK check adjustments [Jan Beulich]
  • ae3fa02: x86emul: VEX.B is ignored in compatibility mode [Jan Beulich]
  • 88ca94a: x86/xstate: Fix array overrun on hardware with LWP [Andrew Cooper]
  • dc309dd: tools/libxl: libxl_set_memory_target: Fix compile error in backport [Ian Jackson]
  • 013ee59: libxl: fix libxl_set_memory_target [Wei Liu]
  • 5f65c8d: init/FreeBSD: fix incorrect usage of $rc_pids in xendriverdomain [Roger Pau Monne]
  • d2fd4ab: init/FreeBSD: add rc control variables [Roger Pau Monne]
  • 71d99ec: init/FreeBSD: fix xencommons so it can only be launched by Dom0 [Roger Pau Monne]
  • 5cb968a: init/FreeBSD: remove xendriverdomain_precmd [Roger Pau Monne]
  • 8f4b369: init/FreeBSD: set correct PATH for xl devd [Roger Pau Monne]
  • 5da121c: xen/arm: gic-v3: Make sure read from ICC_IAR1_EL1 is visible on the redistributor [Julien Grall]
  • 24dc627: x86/emul: Correct the return value handling of VMFUNC [Andrew Cooper]
  • 6d0af98: x86emul: CMPXCHG16B requires an aligned operand [Jan Beulich]
  • 93daaf9: VT-d: correct dma_msi_set_affinity() [Jan Beulich]
  • 7829149: x86emul: MOVNTI does not allow REP prefixes [Jan Beulich]
  • f4dc0d2: x86/VPMU: clear the overflow status of which counter happened to overflow [Luwei Kang]
  • ff555d5: x86emul: correct PUSHF/POPF [Jan Beulich]
  • fd869a6: libelf: section index 0 is special [Jan Beulich]
  • dca0501: x86emul: CMOVcc always writes its destination [Jan Beulich]
  • 7524025: x86/emul: Don't deliver #UD with an error code [Andrew Cooper]
  • 6d55b3a: x86/SVM: don't deliver #GP without error code [Jan Beulich]
  • 149eb6b: x86/EFI: meet further spec requirements for runtime calls [Jan Beulich]
  • ba5bfeb: x86/svm: Fix svm_nextrip_insn_length() when crossing the virtual boundary to 0 [Andrew Cooper]
  • a94f6d5: x86/traps: Don't call hvm_hypervisor_cpuid_leaf() for PV guests [Andrew Cooper]
  • d651253: x86/vmx: Correct the long mode check in vmx_cpuid_intercept() [Andrew Cooper]
  • 792dda0: x86/svm: Don't clobber eax and edx if an RDMSR intercept fails [Andrew Cooper]
  • dd65186: x86emul: {L,S}{G,I}DT ignore operand size overrides in 64-bit mode [Jan Beulich]
  • 0ad7781: x86/emul: Reject LGDT/LIDT attempts with non-canonical base addresses [Andrew Cooper]
  • 6ddc1f3: x86/emul: Correct the decoding of SReg3 operands [Andrew Cooper]
  • 9f3c555: x86/HVM: add missing NULL check before using VMFUNC hook [Jan Beulich]
  • c2a7cc9: x86: force EFLAGS.IF on when exiting to PV guests [Jan Beulich]
  • c5feb91: x86/emul: Correct the handling of eflags with SYSCALL [Andrew Cooper]
  • 7a71cea: pvgrub: fix crash when booting kernel with p2m list outside kernel mapping [Juergen Gross]
  • e0ea04d: x86emul: CMPXCHG8B ignores operand size prefix [Jan Beulich]
  • 4be57d3: QEMU_TAG update [Ian Jackson]
  • e144f21: QEMU_TAG update [Ian Jackson]
  • 0726cb5: arm32: handle async aborts delivered while at HYP [Wei Chen]
  • 32282af: arm: crash the guest when it traps on external abort [Wei Chen]
  • cf21f0c: arm64: handle async aborts delivered while at EL2 [Wei Chen]
  • a2d232d: arm64: handle guest-generated EL1 asynchronous abort [Wei Chen]
  • 206fc70: pygrub: Properly quote results, when returning them to the caller: [Ian Jackson]
  • a6b0650: x86/svm: fix injection of software interrupts [Andrew Cooper]
  • 98eaf9c: x86/emul: correct the IDT entry calculation in inject_swint() [Andrew Cooper]
  • 1b65a34: x86emul: fix huge bit offset handling [Jan Beulich]
  • 8ce2238: libelf: fix stack memory leak when loading 32 bit symbol tables [Roger Pau Monné]
  • 2cd9fa0: x86/PV: writes of %fs and %gs base MSRs require canonical addresses [Jan Beulich]
  • 42bc34b: x86/HVM: don't load LDTR with VM86 mode attrs during task switch [Jan Beulich]
  • e98e17e: x86/hvm: Fix the handling of non-present segments [Andrew Cooper]
  • 0561a33: update Xen version to 4.7.2-pre [Jan Beulich]

In addition, this release also contains the following fixes to qemu-traditional:

  • 0d5d265: cirrus: add blit_is_unsafe call to cirrus_bitblt_cputovideo [Gerd Hoffmann]
  • a20cf3a: cirrus: fix oob access issue (CVE-2017-2615) [Li Qiang]
  • 18858e2: qemu: ioport_read, ioport_write: be defensive about 32-bit addresses [Ian Jackson]
  • 02a1797: xen: fix ioreq handling [Jan Beulich]

This release also contains changes to qemu-upstream, whose changelogs we do not list here as it contains many changes that are not directly releated to the Xen Project Hypervisor and thus this release. However, you can check https://xenbits.xenproject.org/gitweb/?p=qemu-xen.git;a=shortlog (between tags qemu-xen-4.7.1 and qemu-xen-4.7.2).

This release, which includes source code for qemu-traditional and qemu-upstream, contains the following security fixes. 

XSA Xen qemu-traditional qemu-upstream 
XSA-191 Applied N/A N/A
XSA-192 Applied N/A N/A
XSA-193 Applied N/A N/A
XSA-194 Applied N/A N/A
XSA-195 Applied N/A N/A
XSA-196 Applied N/A N/A
XSA-197 N/A Applied Applied
XSA-198 Applied N/A N/A
XSA-199 N/A Applied N/A
XSA-200 Applied N/A N/A
XSA-201 Applied N/A N/A
XSA-202 Applied N/A N/A
XSA-203 Applied N/A N/A
XSA-204 Applied N/A N/A
XSA-205 N/A (Unused XSA number) ... ...
XSA-206 N/A (Reserved XSA number) ... ...
XSA-207 Applied N/A N/A
XSA-208 N/A Applied Applied
XSA-209 N/A Applied Applied


See https://xenbits.xenproject.org/xsa/ for details related to Xen Project security advisories.

We recommend all users of the 4.7 stable series to update to this latest point release.

Xen Project 4.7.3

We are pleased to announce the release of Xen 4.7.3. This is available immediately from its git repository 

https://xenbits.xenproject.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.7 (tag RELEASE-4.7.3) or from this download page

This release contains the following bug-fixes and improvements in the Xen Project hypervisor:

  • 4fbfa34b1a: update Xen version to 4.7.3 [Jan Beulich]
  • e146b7e3ea: memory: don't suppress P2M update in populate_physmap() [Jan Beulich]
  • a0ced5abef: livepatch: Wrong usage of spinlock on debug console. [Konrad Rzeszutek Wilk]
  • a2e3d27df7: Revert "x86/hvm: disable pkeys for guests in non-paging mode" [Andrew Cooper]
  • db2a8fe8b2: xen/arm: vgic: Sanitize target mask used to send SGI [Julien Grall]
  • 4a79c29f67: gnttab: __gnttab_unmap_common_complete() is all-or-nothing [Jan Beulich]
  • 00f67ee347: gnttab: correct logic to get page references during map requests [George Dunlap]
  • 3b4fdddf55: gnttab: never create host mapping unless asked to [Jan Beulich]
  • 283668d146: gnttab: fix handling of dev_bus_addr during unmap [George Dunlap]
  • 9c28648200: arm: vgic: Don't update the LR when the IRQ is not enabled [Julien Grall]
  • eeba17403e: guest_physmap_remove_page() needs its return value checked [Jan Beulich]
  • ba78feae36: memory: fix return value handing of guest_remove_page() [Andrew Cooper]
  • 310cd975d8: evtchn: avoid NULL derefs [Jan Beulich]
  • d6ce30d2fa: x86: avoid leaking PKRU and BND* between vCPU-s [Jan Beulich]
  • 5d6ab83a2d: x86/shadow: hold references for the duration of emulated writes [Andrew Cooper]
  • 865d5bb4b3: gnttab: correct maptrack table accesses [Jan Beulich]
  • c4ad29d35a: gnttab: Avoid potential double-put of maptrack entry [George Dunlap]
  • 0d6d54542f: gnttab: fix unmap pin accounting race [Jan Beulich]
  • 15f428ae7a: IOMMU: handle IOMMU mapping and unmapping failures [Quan Xu]
  • 1de45b3f9b: x86/mm: disallow page stealing from HVM domains [Jan Beulich]
  • 84cd8d3fbd: Revert "hvmloader: avoid tests when they would clobber used memory" [Jan Beulich]
  • aadb70a471: Revert "hvmloader: don't include non-existing header" [Jan Beulich]
  • f1f2df22bf: vgic: refuse irq migration when one is already in progress [Stefano Stabellini]
  • 9e601e6783: arm: remove irq from inflight, then change physical affinity [Stefano Stabellini]
  • f945e7a23c: xen/arm: Survive unknown traps from guests [Julien Grall]
  • 6c9a9b6d5c: xen/arm: do_trap_hypervisor: Separate hypervisor and guest traps [Julien Grall]
  • 0ce60dbffd: xen/arm: Save ESR_EL2 to avoid using mismatched value in syndrome check [Wei Chen]
  • cb799f1947: xen/arm: flush icache as well when XEN_DOMCTL_cacheflush is issued [Tamas K Lengyel]
  • de2c7e3913: xen/arm32: Add an helper to invalidate all instruction caches [Konrad Rzeszutek Wilk]
  • c185c150b2: xen/arm64: Add an helper to invalidate all instruction caches [Julien Grall]
  • 0aa86168ee: hvmloader: don't include non-existing header [Jan Beulich]
  • 50d0512337: stop_machine: fill fn_result only in case of error [Gregory Herrero]
  • 164c34dd23: hvmloader: avoid tests when they would clobber used memory [Jan Beulich]
  • da743dc82a: arm: fix build with gcc 7 [Jan Beulich]
  • 94a8a0e933: x86: fix build with gcc 7 [Jan Beulich]
  • a5f47620f7: x86/mm: fix incorrect unmapping of 2MB and 1GB pages [Igor Druzhinin]
  • c2792a222c: x86/pv: Align %rsp before pushing the failsafe stack frame [Andrew Cooper]
  • 1404c6ac87: x86/pv: Fix bugs with the handling of int80_bounce [Andrew Cooper]
  • 0883fe2d72: x86/vpmu_intel: fix hypervisor crash by masking PC bit in MSR_P6_EVNTSEL [Mohit Gambhir]
  • d8b8a10025: hvm: fix hypervisor crash in hvm_save_one() [Jan Beulich]
  • 6ac5b35ef4: x86/32on64: properly honor add-to-physmap-batch's size [Jan Beulich]
  • 7a0bf3eef7: tools: ocaml: In configure, check for ocamlopt [Ian Jackson]
  • 1956c9e91d: tools/libxc: Tolerate specific zero-content records in migration v2 streams [Andrew Cooper]
  • 6a689975c6: libxc: fix segfault on uninitialized xch->fmem [Seraphime Kirkovski]
  • 74ad8abe49: x86/mce: always re-initialize 'severity_cpu' in mcheck_cmn_handler() [Haozhong Zhang]
  • 1599424843: x86/mce: make 'severity_cpu' private to its users [Haozhong Zhang]
  • 16f34b7a19: memory: don't hand MFN info to translated guests [Jan Beulich]
  • 4ed8558576: memory: exit early from memory_exchange() upon write-back error [Jan Beulich]
  • 0cc3268428: kexec: clear kexec_image slot when unloading kexec image [Bhavesh Davda]
  • a7f041aa8a: x86: discard type information when stealing pages [Jan Beulich]
  • c99967f18b: multicall: deal with early exit conditions [Jan Beulich]
  • 469fc7e9b6: setup vwfi correctly on cpu0 [Stefano Stabellini]
  • 6cf0da5951: oxenstored: trim history in the frequent_ops function [Thomas Sanders]
  • c93ec9a485: oxenstored transaction conflicts: improve logging [Thomas Sanders]
  • e2141f1a57: oxenstored: don't wake to issue no conflict-credit [Thomas Sanders]
  • 75ce43b86e: oxenstored: do not commit read-only transactions [Thomas Sanders]
  • a7f74db8dc: oxenstored: allow self-conflicts [Thomas Sanders]
  • 8106372fdf: oxenstored: blame the connection that caused a transaction conflict [Jonathan Davies]
  • 5029638296: oxenstored: track commit history [Jonathan Davies]
  • 4a48e47405: oxenstored: discard old commit-history on txn end [Thomas Sanders]
  • 167d9890c1: oxenstored: only record operations with side-effects in history [Jonathan Davies]
  • 42ca46bcdc: oxenstored: support commit history tracking [Jonathan Davies]
  • d431ba30ba: oxenstored: add transaction info relevant to history-tracking [Jonathan Davies]
  • 51833a2428: oxenstored: ignore domains with no conflict-credit [Thomas Sanders]
  • 9e82ebf1ed: oxenstored: handling of domain conflict-credit [Thomas Sanders]
  • fb79c3a3e8: oxenstored: comments explaining some variables [Thomas Sanders]
  • 1df3d6c34b: xenstored: Log when the write transaction rate limit bites [Ian Jackson]
  • 8b77a2c05e: xenstored: apply a write transaction rate limit [Ian Jackson]
  • b5c7deaaf2: tools/libxenctrl: fix error check after opening libxenforeignmemory [Paul Durrant]
  • e0b9499697: libxl: correct xenstore entry for empty cdrom [Juergen Gross]
  • ada9e109d7: x86: use 64 bit mask when masking away mfn bits [Juergen Gross]
  • 4bd66bc3bb: memory: properly check guest memory ranges in XENMEM_exchange handling [Jan Beulich]
  • 47ba140217: xen: sched: don't call hooks of the wrong scheduler via VCPU2OP [Dario Faggioli]
  • 4a1dc280b8: x86/EFI: avoid Xen image when looking for module/kexec position [Jan Beulich]
  • 5466c7766f: x86/EFI: avoid IOMMU faults on [_end,__2M_rwdata_end) [Jan Beulich]
  • 25f3d9531b: x86/EFI: avoid overrunning mb_modules[] [Jan Beulich]
  • e5e7f352fb: build/clang: fix XSM dummy policy when using clang 4.0 [Roger Pau Monné]
  • 683b886519: x86: drop unneeded __packed attributes [Roger Pau Monné]
  • 9f2540d997: QEMU_TAG update [Ian Jackson]
  • 9d9be1eaaa: arm: read/write rank->vcpu atomically [Stefano Stabellini]
  • ac8d90e10e: xen/arm: p2m: Perform local TLB invalidation on vCPU migration [Julien Grall]
  • bc868a21e6: xen/arm: Introduce INVALID_VCPU_ID [Julien Grall]
  • d5f9489f0f: xen/arm: Set nr_cpu_ids to available number of cpus [Vijaya Kumar K]
  • b2a180e8f2: xen/arm: fix GIC_INVALID_LR [Stefano Stabellini]
  • 01abcc0dc8: fix out of bound access to mode_strings [Stefano Stabellini]
  • 9c404dfc08: missing vgic_unlock_rank in gic_remove_irq_from_guest [Stefano Stabellini]
  • ddc0cfe9b7: xen/arm: Fix macro for ARM Jazelle CPU feature identification [Artem Mygaiev]
  • 9a54dcdca3: xen/arm: traps: Emulate ICC_SRE_EL1 as RAZ/WI [Julien Grall]
  • 4351611fad: xen/arm: Fix misplaced parentheses for PSCI version check [Artem Mygaiev]
  • c782e61edf: arm/irq: Reorder check when the IRQ is already used by someone [Oleksandr Tyshchenko]
  • d166f07e0e: Don't clear HCR_VM bit when updating VTTBR. [Jun Sun]
  • 099f67b7a1: x86/emul: Correct the decoding of mov to/from cr/dr [Andrew Cooper]
  • d756bf1d04: xen: credit2: don't miss accounting while doing a credit reset. [Dario Faggioli]
  • 10debc0583: xen: credit2: always mark a tickled pCPU as... tickled! [Dario Faggioli]
  • 461dba20c2: x86/layout: Correct Xen's idea of its own memory layout [Andrew Cooper]
  • 188809f33b: x86/vmx: Don't leak host syscall MSR state into HVM guests [Andrew Cooper]
  • 3daa62a302: update Xen version to 4.7.3-pre [Jan Beulich]
  • 8b7ab1eac8: xen/arm: fix affected memory range by dcache clean functions [Stefano Stabellini]
  • 069ba09c61: xen/arm: introduce vwfi parameter [Stefano Stabellini]

In addition, this release also contains the following fixes to qemu-traditional:

  • 73e8fa3f: cirrus/vnc: zap drop bitblit support from console code. [Gerd Hoffmann]

This release also contains changes to qemu-upstream, whose changelogs we do not list here as it contains many changes that are not directly releated to the Xen Project Hypervisor and thus this release. However, you can check https://xenbits.xenproject.org/gitweb/?p=qemu-xen.git;a=shortlog (between tags qemu-xen-4.7.2 and qemu-xen-4.7.3).

This release, which includes source code for qemu-traditional and qemu-upstream, contains the following security fixes. 

XSA Xen qemu-traditional qemu-upstream 
XSA-206 Applied
(reserved at time of 4.7.3 release )
N/A N/A
XSA-207 to 209 Applied in 4.7.3 ... ...
XSA-210 N/A (4.8 only) ... ...
XSA-211 N/A Applied Applied
XSA-212 Applied N/A N/A
XSA-213 Applied N/A N/A
XSA-214 Applied N/A N/A
XSA-215 Applied N/A N/A
XSA-216 N/A N/A (upstream only) Applied
XSA-217 Applied N/A N/A
XSA-218 Applied N/A N/A
XSA-219 Applied N/A N/A
XSA-220 Applied N/A N/A
XSA-221 Applied N/A N/A
XSA-222 Applied N/A N/A
XSA-223 Applied N/A N/A
XSA-224 Applied N/A N/A
XSA-225 Applied N/A N/A


See https://xenbits.xenproject.org/xsa/ for details related to Xen Project security advisories.

We recommend all users of the 4.7 stable series to update to this latest point release.

Xen Project 4.7.4

We are pleased to announce the release of Xen 4.7.4. This is available immediately from its git repository 

https://xenbits.xenproject.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.7 (tag RELEASE-4.7.4) or from this download page

This release contains the following bug-fixes and improvements in the Xen Project hypervisor:

  • bcc9e245aa: update Xen version to 4.7.4 [Jan Beulich]
  • 259a5c3000: x86/shadow: correct SH_LINEAR mapping detection in sh_guess_wrmap() [Andrew Cooper]
  • 1f551847f5: x86: don't wrongly trigger linear page table assertion [Jan Beulich]
  • 721c5b3082: x86/mm: fix race condition in modify_xen_mappings() [Yu Zhang]
  • 33479cdf30: x86/mm: fix race conditions in map_pages_to_xen() [Min He]
  • a8d5690cc3: x86/hvm: do not register hpet mmio during s3 cycle [Eric Chanudet]
  • 227cbb7bfc: x86/mm: Make PV linear pagetables optional [George Dunlap]
  • de27faa6e3: x86: fix asm() constraint for GS selector update [Jan Beulich]
  • f8e806fddc: x86: don't latch wrong (stale) GS base addresses [Jan Beulich]
  • a27ed6a9bf: x86: also show FS/GS base addresses when dumping registers [Jan Beulich]
  • a82350f758: x86: fix GS-base-dirty determination [Jan Beulich]
  • 830224431b: x86emul: handle address wrapping [Jan Beulich]
  • 6e36296c6c: VMX: PLATFORM_INFO MSR is r/o [Jan Beulich]
  • 5805ab112b: x86: avoid #GP for PV guest MSR accesses [Jan Beulich]
  • bc37a36ab1: x86/vvmx: Fix WRMSR interception of VMX MSRs [Andrew Cooper]
  • cf451a8253: x86: fix do_update_va_mapping_otherdomain() wrt translated domains [Jan Beulich]
  • 24955c3143: x86: request page table page-in for the correct domain [Jan Beulich]
  • 46d90a78f6: xen/domctl: Fix Xen heap leak via XEN_DOMCTL_getvcpucontext [Andrew Cooper]
  • cd9ee1f72d: x86/PV: fix/generalize guest nul selector handling [Jan Beulich]
  • 2e24a9ed72: x86/msr: Correct the definition of MSR_IA32_APICBASE_BASE [Andrew Cooper]
  • d0500f2032: x86/svm: Fix a livelock when trying to run shadowed unpaged guests [Andrew Cooper]
  • f03b9e86e7: gnttab: fix pin count / page reference race [Jan Beulich]
  • df0949d197: tools/libxc/xc_dom_arm: add missing variable initialization [Bernd Kuhls]
  • c10dc54d41: x86/cpu: Fix IST handling during PCPU bringup [Andrew Cooper]
  • 8cd1258b09: x86/shadow: Don't create self-linear shadow mappings for 4-level translated guests [Andrew Cooper]
  • 1d01ddc4ef: x86: don't allow page_unlock() to drop the last type reference [Jan Beulich]
  • 5ca7d11d0b: x86: don't store possibly stale TLB flush time stamp [Jan Beulich]
  • ebd47d46c3: x86: limit linear page table use to a single level [Jan Beulich]
  • 6a6a3394b6: x86/HVM: prefill partially used variable on emulation paths [Jan Beulich]
  • e61be54bfa: x86/ioreq server: correctly handle bogus XEN_DMOP_{,un}map_io_range_to_ioreq_server arguments [Vitaly Kuznetsov]
  • e3f7a649f5: x86/FLASK: fix unmap-domain-IRQ XSM hook [Jan Beulich]
  • 957ad237e2: x86/IRQ: conditionally preserve irq pirq mapping on map error paths [Jan Beulich]
  • b1ae705c44: x86/MSI: disallow redundant enabling [Jan Beulich]
  • 3add76f7a5: x86: enforce proper privilege when (un)mapping pIRQ-s [Jan Beulich]
  • 314a8fcd4e: x86: don't allow MSI pIRQ mapping on unowned device [Jan Beulich]
  • d6aad63509: xen/arm: Correctly report the memory region in the dummy NUMA helpers [Julien Grall]
  • 7c99633832: xen/page_alloc: Cover memory unreserved after boot in first_valid_mfn [Julien Grall]
  • 145c18d810: VT-d: use correct BDF for VF to search VT-d unit [Chao Gao]
  • c3fa5cdf3f: hvmloader: use base instead of pci_mem_start for find_next_rmrr() [Xiong Zhang]
  • 487f8f9d6f: x86: check for allocation errors in modify_xen_mappings() [Jan Beulich]
  • ffcfc40e0b: arm/x86: change [modify,destroy]_xen_mappings to return error [Konrad Rzeszutek Wilk]
  • c7783d9c26: gnttab: also validate PTE permissions upon destroy/replace [Jan Beulich]
  • 3331050a1a: tools/xenstore: dont unlink connection object twice [Juergen Gross]
  • 83966a3066: grant_table: fix GNTTABOP_cache_flush handling [Andrew Cooper]
  • a67b22324a: xen/mm: make sure node is less than MAX_NUMNODES [George Dunlap]
  • 68dbba27ae: gnttab: avoid spurious maptrack handle allocation failures [Jan Beulich]
  • 2728470492: cpufreq: only stop ondemand governor if already started [Christopher Clark]
  • dea68ed3f1: VT-d PI: disable VT-d PI when CPU-side PI isn't enabled [Chao Gao]
  • 9d12253f0f: VT-d: don't panic/warn on iommu=no-igfx [Rusty Bird]
  • 73d7bc562a: docs: replace xm with xl in xen-tscmode [Olaf Hering]
  • b704b1a09b: rombios: prevent building with PIC/PIE [Olaf Hering]
  • ca4ef7b5e8: xen/livepatch: Don't crash on encountering STN_UNDEF relocations [Andrew Cooper]
  • ece330ae94: xen/livepatch: Use zeroed memory allocations for arrays [Andrew Cooper]
  • 3d63ebca46: x86/hvm: Fixes to hvmemul_insn_fetch() [Andrew Cooper]
  • 30d50f8ead: arm/mm: release grant lock on xenmem_add_to_physmap_one() error paths [Jan Beulich]
  • 2dc3cdb6e6: travis: install ghostscript [Wei Liu]
  • 5151257626: gnttab: fix "don't use possibly unbounded tail calls" [Jan Beulich]
  • c9f3ca0624: gnttab: fix transitive grant handling [Jan Beulich]
  • e873251378: gnttab: don't use possibly unbounded tail calls [Jan Beulich]
  • 8aebf856ca: gnttab: correct pin status fixup for copy [Jan Beulich]
  • c362cde2c6: gnttab: split maptrack lock to make it fulfill its purpose again [Jan Beulich]
  • fece08abf9: update Xen version to 4.7.4-pre [Jan Beulich]
  • 767f6d27d1: x86/grant: disallow misaligned PTEs [Andrew Cooper]

This release also contains no fixes to qemu-traditional:

This release also contains changes to qemu-upstream, whose changelogs we do not list here as it contains many changes that are not directly releated to the Xen Project Hypervisor and thus this release. However, you can check https://xenbits.xenproject.org/gitweb/?p=qemu-xen.git;a=shortlog (between tags qemu-xen-4.7.3 and qemu-xen-4.7.4).

This release, which includes source code for qemu-traditional and qemu-upstream, contains the following security fixes. 

XSA Xen qemu-traditional qemu-upstream 
XSA-226 Applied N/A N/A
XSA-227 Applied N/A N/A
XSA-228 Applied N/A N/A
XSA-229 N/A (Linux only)... ... ...
XSA-230 Applied N/A N/A
XSA-231 Applied N/A N/A
XSA-232 Applied N/A N/A
XSA-233 Applied N/A N/A
XSA-234 Applied N/A N/A
XSA-235 Applied N/A N/A
XSA-236 Applied N/A N/A
XSA-237 Applied N/A N/A
XSA-238 Applied N/A N/A
XSA-239 Applied N/A N/A
XSA-240 Applied N/A N/A
XSA-241 Applied N/A N/A
XSA-242 Applied N/A N/A
XSA-243 Applied N/A N/A
XSA-244 Applied N/A N/A
XSA-245 Applied N/A N/A


See https://xenbits.xenproject.org/xsa/ for details related to Xen Project security advisories.

We recommend all users of the 4.7 stable series to update to this latest point release.