cve/2023/CVE-2023-52457.md

CVE-2023-52457

Description

In the Linux kernel, the following vulnerability has been resolved:serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failedReturning an error code from .remove() makes the driver core emit thelittle 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 freedare leaked in this case. Skipping serial8250_unregister_port() has thepotential to keep enough of the UART around to trigger a use-after-free.So replace the error return (and with it the little helpful errormessage) by a more useful error message and continue to cleanup.

POC

Reference

No PoCs from references.

Github

• https://github.com/fkie-cad/nvd-json-data-feeds