From: Jack Steiner <steiner@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: [PATCH] - linux/arch/ia64/kernel/acpi.c
Date: Thu, 18 Dec 2003 19:14:42 +0000 [thread overview]
Message-ID: <marc-linux-ia64-107177513519511@msgid-missing> (raw)
The code in acpi_numa_memory_affinity_init that sorts the node_memblk
can overrun the array & clobber the memory that follows the end
of the array. The error will be seen only on systems that fill
the node_memblk array and only if SAL doesnt sort the entries
in the SRAT.
--- linux.base/arch/ia64/kernel/acpi.c Wed Nov 26 14:44:07 2003
+++ linux/arch/ia64/kernel/acpi.c Thu Dec 18 13:10:03 2003
@@ -413,7 +413,7 @@
break;
}
if (p < pend) {
- for (q = pend; q >= p; q--)
+ for (q = pend-1; q >= p; q--)
*(q + 1) = *q;
}
p->start_paddr = paddr;
--
Thanks
Jack Steiner (steiner@sgi.com) 651-683-5302
Principal Engineer SGI - Silicon Graphics, Inc.
next reply other threads:[~2003-12-18 19:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-18 19:14 Jack Steiner [this message]
2003-12-19 23:10 ` [PATCH] - linux/arch/ia64/kernel/acpi.c David Mosberger
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