CVE-2023-53013

In the Linux kernel, the following vulnerability has been resolved:

ptdma: ptcoreexecute_cmd() should use spinlock

The interrupt handler (ptcoreirqhandler()) of the ptdma driver can be called from interrupt context. The code flow in this function can lead down to ptcoreexecutecmd() which will attempt to grab a mutex, which is not appropriate in interrupt context and ultimately leads to a kernel panic. The fix here changes this mutex to a spinlock, which has been verified to resolve the issue.