Finn Thain

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified) Description: The issue is related to the macintosh/via-macii component of the Linux kernel, where the via-macii ADB driver calls request irq() after disabling hard interrupts, which is unnecessary because the VIA shift register interrupt was masked during VIA1 initialization. This may lead to a denial of service. Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The issue is related to the serial/pmac zilog component of the Linux kernel, where a flawed mitigation for rx irq flood can cause a crash when using pmac zilog as a serial console. This occurs because the `pr err()` call in `pmz receive chars()` results in `pmz console write()` attempting to lock a spinlock already locked in `pmz interrupt()`. With `CONFIG DEBUG SPINLOCK=y`, this produces a fatal BUG splat. The spinlock in question is the one in `struct uart port`. Even when it's not fatal, the serial port rx function ceases to work. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.