c9e3853c04
24448-x86-pt-irq-leak.patch - Upstream patches from Jan 24261-x86-cpuidle-Westmere-EX.patch 24417-amd-erratum-573.patch 24429-mceinj-tool.patch 24447-x86-TXT-INIT-SIPI-delay.patch ioemu-9868-MSI-X.patch - bnc#732884 - remove private runlevel 4 from init scripts xen.no-default-runlevel-4.patch - bnc#727515 - Fragmented packets hang network boot of HVM guest ipxe-gcc45-warnings.patch ipxe-ipv4-fragment.patch ipxe-enable-nics.patch - fate#310510 - fix xenpaging update xenpaging.autostart.patch, make changes with mem-swap-target permanent update xenpaging.doc.patch, mention issues with live migration - fate#310510 - fix xenpaging add xenpaging.evict_mmap_readonly.patch update xenpaging.error-handling.patch, reduce debug output - bnc#736824 - Microcode patches for AMD's 15h processors panic the system 24189-x86-p2m-pod-locking.patch 24412-x86-AMD-errata-model-shift.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=164
30 lines
971 B
Diff
30 lines
971 B
Diff
# HG changeset patch
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# User Andrew Cooper <andrew.cooper3@citrix.com>
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# Date 1323114166 0
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# Node ID 9961a6d5356a57685b06f65133c6ade5041e3356
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# Parent 832fa3f3543298a7125cd5f996d1e28dd7ba47b1
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KEXEC: fix kexec_get_range_compat to fail vocally.
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Fail with -ERANGE rather than silently truncating 64bit values (a
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physical address and size) into 32bit integers for dom0 to consume.
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Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
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Simplify the bitwise arithmetic a bit.
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Signed-off-by: Keir Fraser <keir@xen.org>
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--- a/xen/common/kexec.c
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+++ b/xen/common/kexec.c
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@@ -395,6 +395,10 @@ static int kexec_get_range_compat(XEN_GU
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ret = kexec_get_range_internal(&range);
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+ /* Dont silently truncate physical addresses or sizes. */
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+ if ( (range.start | range.size) & ~(unsigned long)(~0u) )
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+ return -ERANGE;
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+
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if ( ret == 0 ) {
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XLAT_kexec_range(&compat_range, &range);
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if ( unlikely(copy_to_guest(uarg, &compat_range, 1)) )
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