Commit 1bdfac19 authored Aug 03, 2011 by Andy Lutomirski Committed by H. Peter Anvin Aug 04, 2011

x86-64: Pad vDSO to a page boundary



This avoids an information leak to userspace.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/a63380a3c58a0506a2f5a18ba1b12dbde1f25e58.1312378163.git.luto@mit.edu


Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

parent 17b04360

arch/x86/vdso/vdso.S

+1 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@ __PAGE_ALIGNED_DATA
		vdso_start:
		.incbin "arch/x86/vdso/vdso.so"
		vdso_end:
		.align PAGE_SIZE /* extra data here leaks to userspace. */

		.previous

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