CVE-2023-54232

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a flaw in the handling of bus errors on m68k systems. Specifically, the get kernel nofault() function can cause a bus error exception when logging a kernel task without an associated workqueue. The existing bus error handler for 030 processors does not properly handle these exceptions, leading to a signal being sent or a system panic. The issue arises because the handler does not attempt to handle the fault and bypasses the check for exception handling. The fix involves adding a check in the bus error030 function to call do page fault() if an entry exists for the fault PC in the exception table.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.