Linux Kernel Vulnerability in Serial Device Driver by Vendor

CVE-2025-68311

What is CVE-2025-68311?

A recently addressed vulnerability in the Linux kernel relates to the ip22zilog serial device driver. The issue arose following a specific commit that mandated serial drivers to correctly define a device for struct uart_port.dev. Failure to comply with this requirement could lead to unexpected crashes. The resolution involved reclassifying the ip22zilog driver as a platform driver, which allowed proper management of the serial device in the sgi-ip22 code, thereby enhancing stability and performance.

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