diff options
| author | Jason Wang <jasowang@redhat.com> | 2022-06-08 14:14:22 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-14 18:41:51 +0200 |
| commit | 808104294597fe75680e3341e4f0642a6e55329e (patch) | |
| tree | ec05eacb226bac9f31937680604bdb75ed439c13 /include/uapi/linux/securebits.h | |
| parent | 12428889c07be8b32a0d65994a1469392cb14b76 (diff) | |
virtio-rng: make device ready before making request
commit 228432551bd8783211e494ab35f42a4344580502 upstream.
Current virtio-rng does a entropy request before DRIVER_OK, this
violates the spec:
virtio spec requires that all drivers set DRIVER_OK
before using devices.
Further, kernel will ignore the interrupt after commit
8b4ec69d7e09 ("virtio: harden vring IRQ").
Fixing this by making device ready before the request.
Cc: stable@vger.kernel.org
Fixes: 8b4ec69d7e09 ("virtio: harden vring IRQ")
Fixes: f7f510ec1957 ("virtio: An entropy device, as suggested by hpa.")
Reported-and-tested-by: syzbot+5b59d6d459306a556f54@syzkaller.appspotmail.com
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220608061422.38437-1-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/securebits.h')
0 files changed, 0 insertions, 0 deletions