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authorAndrew Honig <[email protected]>2015-11-18 14:50:23 -0800
committerPaolo Bonzini <[email protected]>2015-12-22 15:36:26 +0100
commit0185604c2d82c560dab2f2933a18f797e74ab5a8 (patch)
tree227382c16c0ce92f1912892e159f6aa770235f3a /tools/perf/util/trace-event-scripting.c
parente24dea2afc6a0852983dc741072d8e96155e13f5 (diff)
KVM: x86: Reload pit counters for all channels when restoring state
Currently if userspace restores the pit counters with a count of 0 on channels 1 or 2 and the guest attempts to read the count on those channels, then KVM will perform a mod of 0 and crash. This will ensure that 0 values are converted to 65536 as per the spec. This is CVE-2015-7513. Signed-off-by: Andy Honig <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
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