diff options
| author | Owen Hofmann <osh@google.com> | 2016-10-27 11:25:52 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-10 16:36:37 +0100 |
| commit | 91e1f7b0eb252ce8f88d69227ef5f52f9efb2aae (patch) | |
| tree | 0e942486ede38cec21fc09ec13e66ad31c352efa /net/core | |
| parent | 62fa839b8fff08425bcc6bcdd5533ef4a267aa87 (diff) | |
kvm: x86: Check memopp before dereference (CVE-2016-8630)
commit d9092f52d7e61dd1557f2db2400ddb430e85937e upstream.
Commit 41061cdb98 ("KVM: emulate: do not initialize memopp") removes a
check for non-NULL under incorrect assumptions. An undefined instruction
with a ModR/M byte with Mod=0 and R/M-5 (e.g. 0xc7 0x15) will attempt
to dereference a null pointer here.
Fixes: 41061cdb98a0bec464278b4db8e894a3121671f5
Message-Id: <1477592752-126650-2-git-send-email-osh@google.com>
Signed-off-by: Owen Hofmann <osh@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions