Kernel crashed due to list corruption coming out of the stall_tbl_insert() function provided by "cb_appc_events_4_1_2640849".

Issue

• The server rebooted unexpectedly.
• The server crashed in a third-party module cb_appc_events_4_1_2640849 code path.
• Kernel crashed with the following logs:

crash> log
[773032.574534] list_add corruption. next->prev should be prev (ffff8f503008f1e8), but was 0000000000000000. (next=ffff8f50c7763e18).
[773032.574565] ------------[ cut here ]------------
[773032.574568] kernel BUG at lib/list_debug.c:25!
[773032.574580] invalid opcode: 0000 [#1] SMP PTI
[773032.574589] CPU: 2 PID: 2878618 Comm: Thread-121 Kdump: loaded Tainted: G        W  OE     -------- -  - 4.18.0-553.53.1.el8_10.x86_64 #1
[773032.574597] Hardware name: HP ProLiant BL460c Gen9, BIOS I36 07/18/2022
[773032.574602] RIP: 0010:__list_add_valid.cold.0+0x12/0x28
[773032.574616] Code: 00 48 8b 50 08 48 39 f2 0f 85 46 00 00 00 b8 01 00 00 00 c3 cc cc cc cc 48 89 d1 48 c7 c7 a0 50 74 99 48 89 c2 e8 32 41 c7 ff <0f> 0b 48 89 c1 4c 89 c6 48 c7 c7 f8 50 74 99 e8 1e 41 c7 ff 0f 0b
[773032.574623] RSP: 0018:ffffb7d50dbc3b48 EFLAGS: 00010046
[773032.574632] RAX: 0000000000000075 RBX: ffff8f5b773c7600 RCX: 0000000000000000
[773032.574638] RDX: 0000000000000000 RSI: ffff8f5f3fc9e698 RDI: ffff8f5f3fc9e698
[773032.574644] RBP: ffff8f50adad0f80 R08: 0000000000000000 R09: c0000000ffff7fff
[773032.574649] R10: 0000000000000001 R11: ffffb7d50dbc3968 R12: ffff8f5b773c7618
[773032.574654] R13: ffff8f5356962400 R14: 000000000000f1e0 R15: ffff8f503008f1e0
[773032.574659] FS:  00007f5eaa104700(0000) GS:ffff8f5f3fc80000(0000) knlGS:0000000000000000
[773032.574666] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[773032.574670] CR2: 00007fc8d5f41000 CR3: 0000000390060005 CR4: 00000000003706e0
[773032.574677] Call Trace:
[773032.574685]  ? __die_body+0x1a/0x60
[773032.574698]  ? die+0x2a/0x50
[773032.574706]  ? do_trap+0xe7/0x110
[773032.574714]  ? __list_add_valid.cold.0+0x12/0x28
[773032.574722]  ? do_invalid_op+0x36/0x40
[773032.574729]  ? __list_add_valid.cold.0+0x12/0x28
[773032.574735]  ? invalid_op+0x14/0x20
[773032.574750]  ? __list_add_valid.cold.0+0x12/0x28
[773032.574754]  ? __list_add_valid.cold.0+0x12/0x28
[773032.574760]  stall_tbl_insert+0x20c/0x2c0 [cb_appc_events_4_1_2640849]
[773032.574779]  dynsec_wait_event_timeout+0x78/0x4b0 [cb_appc_events_4_1_2640849]
[773032.574793]  ? prepare_dynsec_event+0x1ad/0x1f0 [cb_appc_events_4_1_2640849]
[773032.574807]  dynsec_file_open+0x2a7/0x4b0 [cb_appc_events_4_1_2640849]
[773032.574820]  security_file_open+0x26/0xf0
[773032.574828]  do_dentry_open+0xde/0x3a0
[773032.574837]  path_openat+0x55b/0x1580
[773032.574847]  do_filp_open+0x93/0x100
[773032.574855]  ? getname_flags+0x4a/0x1e0
[773032.574860]  ? __check_object_size+0xac/0x173
[773032.574866]  ? path_get+0x11/0x30
[773032.574872]  ? __alloc_fd+0x44/0x150
[773032.574880]  do_sys_openat2+0x211/0x2b0
[773032.574888]  do_sys_open+0x4b/0x80
[773032.574896]  do_syscall_64+0x5b/0x1a0
[773032.574904]  entry_SYSCALL_64_after_hwframe+0x66/0xcb
[773032.574912] RIP: 0033:0x7f5ffb9dcf46
[773032.574921] Code: 89 54 24 08 e8 9b f4 ff ff 8b 74 24 0c 48 8b 3c 24 41 
[773032.574928] RSP: 002b:00007f5eaa1015e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
[773032.574935] RAX: ffffffffffffffda RBX: 0000000000000241 RCX: 00007f5ffb9dcf46
[773032.574939] RDX: 0000000000000241 RSI: 00007f5eaa101740 RDI: 00000000ffffff9c
[773032.574942] RBP: 00007f5eaa101740 R08: 0000000000000000 R09: 0000000000000000
[773032.574945] R10: 00000000000001b6 R11: 0000000000000293 R12: 0000000004300d98
[773032.574948] R13: 00000000000001b6 R14: 00007f5ffbdc6420 R15: 0000000000000000
[773032.574953] Modules linked in: udp_diag tcp_diag inet_diag cb_appc_events_4_1_2640849(OE) binfmt_misc xt_CHECKSUM ipt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 nft_compat nft_counter nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink bridge stp llc bonding tls cfg80211 rfkill ext4 mbcache jbd2 dm_service_time dm_multipath intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel iTCO_wdt iTCO_vendor_support kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rapl intel_cstate intel_uncore pcspkr lpc_ich i2c_i801 ipmi_ssif hpwdt ioatdma dca ses enclosure hpilo acpi_ipmi wmi ipmi_si ipmi_devintf acpi_power_meter ipmi_msghandler acpi_tad auth_rpcgss sunrpc xfs libcrc32c lpfc mgag200 drm_kms_helper syscopyarea sd_mod sysfillrect sysimgblt sg i2c_algo_bit drm_shmem_helper nvmet_fc drm nvmet nvme_fc crc32c_intel nvme_fabrics serio_raw nvme_core hpsa
[773032.575073]  be2net t10_pi scsi_transport_fc scsi_transport_sas dm_mod fuse
[773032.575086] Red Hat flags: eBPF/event