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() 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.
How to fix
- linux linux_kernel5.4.268, 5.10.209, 5.15.148, 6.1.75, 6.6.14, 6.7.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.4.225 ≤ v < 5.4.268, 5.10.156 ≤ v < 5.10.209, 5.15.80 ≤ v < 5.15.148, 6.0.10 ≤ v < 6.1.75, 6.2 ≤ v < 6.6.14, 6.7 ≤ v < 6.7.2 | 5.4.268, 5.10.209, 5.15.148, 6.1.75, 6.6.14, 6.7.2 |
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