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| author | Marios Pomonis <[email protected]> | 2019-12-11 12:47:50 -0800 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2020-01-27 19:59:42 +0100 |
| commit | 125ffc5e0a56a3eded608dc51e09d5ebf72cf652 (patch) | |
| tree | 3f6dafa71f5d0e850d598e7bb2471876d2f89469 /tools/perf/util/trace-event-scripting.c | |
| parent | 6ec4c5eee1750d5d17951c4e1960d953376a0dda (diff) | |
KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks
This fixes Spectre-v1/L1TF vulnerabilities in
vmx_read_guest_seg_selector(), vmx_read_guest_seg_base(),
vmx_read_guest_seg_limit() and vmx_read_guest_seg_ar(). When
invoked from emulation, these functions contain index computations
based on the (attacker-influenced) segment value. Using constants
prevents the attack.
Cc: [email protected]
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions