diff options
| -rw-r--r-- | hw/char/cadence_uart.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/char/cadence_uart.c b/hw/char/cadence_uart.c index 0215d65..dba1c53 100644 --- a/hw/char/cadence_uart.c +++ b/hw/char/cadence_uart.c @@ -502,6 +502,13 @@ static int cadence_uart_post_load(void *opaque, int version_id) { CadenceUARTState *s = opaque; + /* Ensure these two aren't invalid numbers */ + if (s->r[R_BRGR] < 1 || s->r[R_BRGR] & ~0xFFFF || + s->r[R_BDIV] <= 3 || s->r[R_BDIV] & ~0xFF) { + /* Value is invalid, abort */ + return 1; + } + uart_parameters_setup(s); uart_update_status(s); return 0; |