CVE-2023-52457

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed Returning an error code from .remove() makes the driver core emit the little helpful error message: remove callback returned a non-zero value. This will be ignored. and then remove the device anyhow. So all resources that were not freed are leaked in this case. Skipping serial8250_unregister_port() has the potential to keep enough of the UART around to trigger a use-after-free. So replace the error return (and with it the little helpful error message) by a more useful error message and continue to cleanup.

• linux linux kernel (>= 5.4.225 < 5.4.268) • linux linux kernel (>= 5.10.156 < 5.10.209) • linux linux kernel (>= 5.15.80 < 5.15.148) • linux linux kernel (>= 6.0.10 < 6.1.75) • linux linux kernel (>= 6.2 < 6.6.14) • linux linux kernel (>= 6.7 < 6.7.2)