6.6-stable review patch. If anyone has any objections, please let me know.
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From: Maximilian Immanuel Brandtner maxbr@linux.ibm.com
commit 5326ab737a47278dbd16ed3ee7380b26c7056ddd upstream.
According to section 5.3.6.2 (Multiport Device Operation) of the virtio spec(version 1.2) a control buffer with the event VIRTIO_CONSOLE_RESIZE is followed by a virtio_console_resize struct containing cols then rows. The kernel implements this the wrong way around (rows then cols) resulting in the two values being swapped.
Signed-off-by: Maximilian Immanuel Brandtner maxbr@linux.ibm.com Message-Id: 20250324144300.905535-1-maxbr@linux.ibm.com Signed-off-by: Michael S. Tsirkin mst@redhat.com Cc: Filip Hejsek filip.hejsek@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/char/virtio_console.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1612,8 +1612,8 @@ static void handle_control_message(struc break; case VIRTIO_CONSOLE_RESIZE: { struct { - __virtio16 rows; __virtio16 cols; + __virtio16 rows; } size;
if (!is_console_port(port))