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| author | Thijs Raymakers <thijs@raymakers.nl> | 2025-08-04 08:44:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-04 15:31:52 +0200 |
| commit | 67a05679621b7f721bdba37a5d18665d3aceb695 (patch) | |
| tree | 8284fb03023d16878e683f972e3994423fc9d30e /include/net/aligned_data.h | |
| parent | 7b6b76e3f0790862405dc33343995a99defdad30 (diff) | |
KVM: x86: use array_index_nospec with indices that come from guest
commit c87bd4dd43a624109c3cc42d843138378a7f4548 upstream.
min and dest_id are guest-controlled indices. Using array_index_nospec()
after the bounds checks clamps these values to mitigate speculative execution
side-channels.
Signed-off-by: Thijs Raymakers <thijs@raymakers.nl>
Cc: stable@vger.kernel.org
Cc: Sean Christopherson <seanjc@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes: 715062970f37 ("KVM: X86: Implement PV sched yield hypercall")
Fixes: bdf7ffc89922 ("KVM: LAPIC: Fix pv ipis out-of-bounds access")
Fixes: 4180bf1b655a ("KVM: X86: Implement "send IPI" hypercall")
Link: https://lore.kernel.org/r/20250804064405.4802-1-thijs@raymakers.nl
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions