The kernel often crashes due to OOB (out-of-bounds) bug in mmfslinux module

Issue

• The kernel crashes due to list_del corruption.

[11495.384279] list_del corruption. prev->next should be 001ffbffa2fc7d80, but was 30393400a2fc7d80
[11495.384310] ------------[ cut here ]------------
[11495.384311] kernel BUG at lib/list_debug.c:51!
[11495.384354] monitor event: 0040 ilc:2 [#1] SMP 
[11495.384363] Modules linked in: ...
[11495.384432] CPU: 6 PID: 502457 Comm: haproxy Kdump: loaded Tainted: G           OE     -------  ---  5.14.0-427.57.1.el9_4.s390x #1
[11495.384446] Hardware name: IBM 3931 A01 419 (z/VM 7.3.0)
[11495.384448] Krnl PSW : 0404c00180000000 00000003c36b1a3a (__list_del_entry_valid+0x9a/0xb0)
[11495.384461]            R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3
[11495.384463] Krnl GPRS: c0000000ffffbfff 0000001e00000027 0000000000000054 00000003c438fd18
[11495.384466]            001ffbffa2fc7ac0 001ffbffa2fc7ab8 0000000000000000 000000014cc7e290
[11495.384467]            001ffbffa2fc7d58 0000000100000001 001ffbffa2fc7d80 000000014cc7e240
[11495.384469]            0000000e6b1fe900 000003ffd13f839f 00000003c36b1a36 001ffbffa2fc7c78
[11495.384476] Krnl Code: 00000003c36b1a2a: c020003c2eff    larl    %r2,00000003c3e37828
                          00000003c36b1a30: c0e500213d60    brasl    %r14,00000003c3ad94f0
                         #00000003c36b1a36: af000000        mc    0,0
                         >00000003c36b1a3a: b9040032        lgr    %r3,%r2
                          00000003c36b1a3e: c020003c2ed9    larl    %r2,00000003c3e377f0
                          00000003c36b1a44: c0e500213d56    brasl    %r14,00000003c3ad94f0
                          00000003c36b1a4a: af000000        mc    0,0
                          00000003c36b1a4e: 0707        bcr    0,%r7
[11495.384490] Call Trace:
[11495.384492]  [<00000003c36b1a3a>] __list_del_entry_valid+0x9a/0xb0 
[11495.384496] ([<00000003c36b1a36>] __list_del_entry_valid+0x96/0xb0)
[11495.384498]  [<00000003c3511ee6>] ep_poll+0x2a6/0x450 
[11495.384504]  [<00000003c3512140>] do_epoll_wait+0xb0/0xd0 
[11495.384506]  [<00000003c3512afc>] __s390x_sys_epoll_wait+0x11c/0x150 
[11495.384509]  [<00000003c3ae60a0>] __do_syscall+0x1d0/0x200 
[11495.384513]  [<00000003c3af5002>] system_call+0x82/0xb0 
[11495.384516] Last Breaking-Event-Address:
[11495.384517]  [<00000003c3ad953c>] _printk+0x4c/0x58
[11495.384521] Kernel panic - not syncing: Fatal exception: panic_on_oops