Kernel panic in `run_timer_softirq`

Issue

• Server crashes when running software with third-party SCTP wrapper module
• When running our software that uses out-of-tree SCTP, the server crashes and then reboots. Need help to analyze the issue.
• Kernel panic with BUG: unable to handle kernel paging request and backtrace like:

crash> bt
PID: 0      TASK: ffffffff82618840  CPU: 0   COMMAND: "swapper/0"
 #0 [ffffc90000003c18] machine_kexec at ffffffff8106156e
 #1 [ffffc90000003c70] __crash_kexec at ffffffff8118f99d
 #2 [ffffc90000003d38] crash_kexec at ffffffff8119088d
 #3 [ffffc90000003d50] oops_end at ffffffff8102434d
 #4 [ffffc90000003d70] no_context at ffffffff8107262f
 #5 [ffffc90000003dc8] __bad_area_nosemaphore at ffffffff8107298c
 #6 [ffffc90000003e10] do_page_fault at ffffffff81073267
 #7 [ffffc90000003e40] page_fault at ffffffff81a010fe
    [exception RIP: run_timer_softirq+0x126]
    RIP: ffffffff8116cf56  RSP: ffffc90000003ef0  RFLAGS: 00010086
    RAX: ffffffff810ef72d  RBX: ffff88807fc1aac0  RCX: 000000011123d427
    RDX: ffffc90000003ef8  RSI: 0000000000000001  RDI: ffff88807fc1aae8
    RBP: 0000000000000000   R8: ffff88807fc1b280   R9: ffffc90000003f00
    R10: ffff88807fc1ab30  R11: 000000000000007a  R12: 000000011123d400
    R13: ffffc90000003ef8  R14: ffffc900068b3d90  R15: 0000000000000082
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #8 [ffffc90000003f78] __softirqentry_text_start at ffffffff81c000d7
 #9 [ffffc90000003fc8] irq_exit at ffffffff810e7367
#10 [ffffc90000003fd8] smp_apic_timer_interrupt at ffffffff81a026e4
#11 [ffffc90000003ff0] apic_timer_interrupt at ffffffff81a01c6f
--- <IRQ stack> ---