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xen
52496c32-x86-properly-set-up-fbld-emulation-ope...
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File 52496c32-x86-properly-set-up-fbld-emulation-operand-address.patch of Package xen
References: bnc#841766 CVE-2013-4361 XSA-66 # Commit 28b706efb6abb637fabfd74cde70a50935a5640b # Date 2013-09-30 14:18:58 +0200 # Author Jan Beulich <jbeulich@suse.com> # Committer Jan Beulich <jbeulich@suse.com> x86: properly set up fbld emulation operand address This is CVE-2013-4361 / XSA-66. Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -3156,11 +3156,11 @@ x86_emulate( break; case 4: /* fbld m80dec */ ea.bytes = 10; - dst = ea; + src = ea; if ( (rc = ops->read(src.mem.seg, src.mem.off, &src.val, src.bytes, ctxt)) != 0 ) goto done; - emulate_fpu_insn_memdst("fbld", src.val); + emulate_fpu_insn_memsrc("fbld", src.val); break; case 5: /* fild m64i */ ea.bytes = 8;
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