24 lines
926 B
Diff
24 lines
926 B
Diff
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# HG changeset patch
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# User Keir Fraser <keir@xen.org>
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# Date 1314800089 -3600
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# Node ID 72edc40e2942a3cf0ee8e0d3a330d2e5c2bdfb53
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# Parent ac9aa65050e9abc8f1c12c8603acf3b99e22cddc
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x86-64: Fix off-by-one error in __addr_ok() macro
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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Signed-off-by: Keir Fraser <keir@xen.org>
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Index: xen-4.1.2-testing/xen/include/asm-x86/x86_64/uaccess.h
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===================================================================
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--- xen-4.1.2-testing.orig/xen/include/asm-x86/x86_64/uaccess.h
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+++ xen-4.1.2-testing/xen/include/asm-x86/x86_64/uaccess.h
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@@ -21,7 +21,7 @@ void free_compat_arg_xlat(struct vcpu *v
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* non-canonical address (and thus fault) before ever reaching VIRT_START.
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*/
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#define __addr_ok(addr) \
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- (((unsigned long)(addr) < (1UL<<48)) || \
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+ (((unsigned long)(addr) < (1UL<<47)) || \
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((unsigned long)(addr) >= HYPERVISOR_VIRT_END))
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#define access_ok(addr, size) \
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