OCI: ExaCC Linux Instance Crashed with "Kernel Panic: NULL Pointer Dereference" in trailing_symlink

Applies:

Oracle Cloud Infrastructure - Version N/A and later
Oracle Linux Server Release 7/8

Symptoms:

ExaCC instance with UEK6 kernel version 5.4.17-2136.336.5.3.2.el8uek.x86_64 panicked with the following call stack:

crash> sys

     KERNEL: /usr/lib/debug/lib/modules/5.4.17-2136.336.5.3.2.el8uek.x86_64/vmlinux  [TAINTED]

   DUMPFILE: hostname_coredump  [PARTIAL DUMP]

       CPUS: 28

       DATE: Mon Jun  2 21:45:07 CEST 2025

     UPTIME: 30 days, 08:04:25

LOAD AVERAGE: 16.97, 19.79, 19.19

      TASKS: 6014

   NODENAME: hostname

    RELEASE: 5.4.17-2136.336.5.3.2.el8uek.x86_64

    VERSION: #3 SMP Thu Dec 5 15:38:02 PST 2024

    MACHINE: x86_64  (2394 Mhz)

     MEMORY: 350 GB

      PANIC: "Kernel panic - not syncing: Fatal exception"

        PID: 49776

    COMMAND: "wdavdaemon"                        

       TASK: ff37b93697e09e80  [THREAD_INFO: ff37b93697e09e80]

        CPU: 25