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X-Received-From: 2a00:1450:4864:20::42b Subject: [Qemu-devel] [PULL 71/79] virtio: do not take address of packed members X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Jason Wang Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDMRC_1 RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The address of a packed member is not packed, which may cause accesses to unaligned pointers. Avoid this by reading the packed value before passing it to another function. Cc: Jason Wang Cc: Peter Maydell Signed-off-by: Paolo Bonzini --- hw/char/virtio-serial-bus.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c index d2dd8ab..04e3ebe 100644 --- a/hw/char/virtio-serial-bus.c +++ b/hw/char/virtio-serial-bus.c @@ -667,9 +667,9 @@ static void virtio_serial_save_device(VirtIODevice *vde= v, QEMUFile *f) =20 /* The config space (ignored on the far end in current versions) */ get_config(vdev, (uint8_t *)&config); - qemu_put_be16s(f, &config.cols); - qemu_put_be16s(f, &config.rows); - qemu_put_be32s(f, &config.max_nr_ports); + qemu_put_be16(f, config.cols); + qemu_put_be16(f, config.rows); + qemu_put_be32(f, config.max_nr_ports); =20 /* The ports map */ max_nr_ports =3D s->serial.max_virtserial_ports; --=20 1.8.3.1