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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2022-11-03 16:13:44 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-11-17 11:39:54 -0500 |
| commit | 16ae56d7e0528559bf8dc9070e3bfd8ba3de80df (patch) | |
| tree | 58164c77de5374af858ca156f283bebe80bd5de2 /lib/mpi/mpi-cmp.c | |
| parent | 917401f26a6af5756d89b550a8e1bd50cf42b07e (diff) | |
KVM: x86: nSVM: harden svm_free_nested against freeing vmcb02 while still in use
Make sure that KVM uses vmcb01 before freeing nested state, and warn if
that is not the case.
This is a minimal fix for CVE-2022-3344 making the kernel print a warning
instead of a kernel panic.
Cc: stable@vger.kernel.org
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20221103141351.50662-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'lib/mpi/mpi-cmp.c')
0 files changed, 0 insertions, 0 deletions