> From: Sergey Dyasli [mailto:sergey.dya...@citrix.com] > Sent: Wednesday, March 01, 2017 5:14 PM > > If a guest will do vmptrld with an incorrect vmcs id: > > (XEN) Xen BUG at .../git/upstream/xen/xen/include/asm/hvm/vmx/vmx.h:333 > (XEN) ----[ Xen-4.9-unstable x86_64 debug=y Tainted: H ]---- > (XEN) Xen call trace: > (XEN) [<ffff82d0801f925e>] > vmcs.c#arch/x86/hvm/vmx/vmcs.o.unlikely+0x28/0x19a > (XEN) [<ffff82d0801f602c>] virtual_vmcs_vmread+0x11/0x2c > (XEN) [<ffff82d0802002cc>] vvmx.c#_map_io_bitmap+0x86/0x88 > (XEN) [<ffff82d080202399>] nvmx_handle_vmptrld+0xf0/0x1fb > (XEN) [<ffff82d0801fe93c>] vmx_vmexit_handler+0x132b/0x1c49 > (XEN) [<ffff82d080203e6c>] vmx_asm_vmexit_handler+0x3c/0x120 > > Fix this by adding appropriate checks for vmcs id during vmptrld > emulation. > > Signed-off-by: Sergey Dyasli <sergey.dya...@citrix.com>
Acked-by: Kevin Tian <kevin.t...@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
