diff options
| author | Paolo Bonzini | 2017-10-26 15:45:47 +0200 |
|---|---|---|
| committer | Kees Cook | 2018-01-15 21:08:07 +0100 |
| commit | 51776043afa415435c7e4636204fbe4f7edc4501 (patch) | |
| tree | 7b3364b6df0e880aa682ec710a69b11953e4ad79 /mm/slab_common.c | |
| parent | kvm: whitelist struct kvm_vcpu_arch (diff) | |
| download | kernel-qcow2-linux-51776043afa415435c7e4636204fbe4f7edc4501.tar.gz kernel-qcow2-linux-51776043afa415435c7e4636204fbe4f7edc4501.tar.xz kernel-qcow2-linux-51776043afa415435c7e4636204fbe4f7edc4501.zip | |
kvm: x86: fix KVM_XEN_HVM_CONFIG ioctl
This ioctl is obsolete (it was used by Xenner as far as I know) but
still let's not break it gratuitously... Its handler is copying
directly into struct kvm. Go through a bounce buffer instead, with
the added benefit that we can actually do something useful with the
flags argument---the previous code was exiting with -EINVAL but still
doing the copy.
This technically is a userspace ABI breakage, but since no one should be
using the ioctl, it's a good occasion to see if someone actually
complains.
Cc: kernel-hardening@lists.openwall.com
Cc: Kees Cook <keescook@chromium.org>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'mm/slab_common.c')
0 files changed, 0 insertions, 0 deletions