[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-4.1-testing] x86: Fix argument checking in (privileged) function cpu_add().
# HG changeset patch # User Keir Fraser <keir@xxxxxxx> # Date 1308167049 -3600 # Node ID 3d1a9facbc2806aaf2bb66d34ae9a03dcb665dd3 # Parent 49ed2ca8c1a28b62e65de0590bd6945ce6e740f1 x86: Fix argument checking in (privileged) function cpu_add(). Thanks to John McDermott <john.mcdermott@xxxxxxxxxxxx> for spotting. Signed-off-by: Keir Fraser <keir@xxxxxxx> xen-unstable changeset: 23505:5a557fda70a9 xen-unstable date: Fri Jun 10 08:08:44 2011 +0100 --- diff -r 49ed2ca8c1a2 -r 3d1a9facbc28 xen/arch/x86/smpboot.c --- a/xen/arch/x86/smpboot.c Wed Jun 15 20:43:30 2011 +0100 +++ b/xen/arch/x86/smpboot.c Wed Jun 15 20:44:09 2011 +0100 @@ -899,7 +899,9 @@ dprintk(XENLOG_DEBUG, "cpu_add apic_id %x acpi_id %x pxm %x\n", apic_id, acpi_id, pxm); - if ( acpi_id > MAX_MADT_ENTRIES || apic_id > MAX_APICS || pxm > 256 ) + if ( (acpi_id >= MAX_MADT_ENTRIES) || + (apic_id >= MAX_APICS) || + (pxm >= 256) ) return -EINVAL; if ( !cpu_hotplug_begin() ) _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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