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| author | Jan Beulich <jbeulich@suse.com> | 2013-09-30 14:32:39 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2013-09-30 14:32:39 +0200 |
| commit | ca0fe6dc4ff9fd12bca751d73b20b309f0444ae2 (patch) | |
| tree | 0fa89644d1030ab7b8c0e3f007060cbd577af823 | |
| parent | 592e139cabb514d22d97b4738dad6bf6eaf0ca89 (diff) | |
| download | xen-ca0fe6dc4ff9fd12bca751d73b20b309f0444ae2.tar.gz xen-ca0fe6dc4ff9fd12bca751d73b20b309f0444ae2.tar.bz2 xen-ca0fe6dc4ff9fd12bca751d73b20b309f0444ae2.zip | |
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>
master commit: 28b706efb6abb637fabfd74cde70a50935a5640b
master date: 2013-09-30 14:18:58 +0200
| -rw-r--r-- | xen/arch/x86/x86_emulate/x86_emulate.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c index f4686c467e..d1c2c239ad 100644 --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -2975,11 +2975,11 @@ 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; |