"WARNING: CPU: X PID: Y at kernel/rcutree.c:2221 rcu_process_callbacks+0x50c/0x570" followed by the crash

Issue

• "WARNING: CPU: X PID: Y at kernel/rcutree.c:2221 rcu_process_callbacks+0x50c/0x570" followed by the crash

[33298938.006620] ------------[ cut here ]------------
[33298938.007790] WARNING: CPU: 4 PID: 0 at kernel/rcutree.c:2221 rcu_process_callbacks+0x50c/0x570
[33298938.007792] Modules linked in: nls_utf8 isofs loop tcp_diag udp_diag inet_diag xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock sunrpc ext4 mbcache jbd2 ppdev iosf_mbi crc32_pclmul vmw_balloon ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr sg i2c_piix4 vmw_vmci parport_pc parport binfmt_misc ip_tables xfs libcrc32c sr_mod cdrom ata_generic pata_acpi vmwgfx sd_mod crc_t10dif drm_kms_helper crct10dif_generic syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ahci drm crct10dif_pclmul crct10dif_common crc32c_intel
[33298938.021390]  ata_piix libahci nfit libata serio_raw libnvdimm vmxnet3 vmw_pvscsi drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod fuse
[33298938.023219] CPU: 4 PID: 0 Comm: swapper/4 Kdump: loaded Not tainted 3.10.0-1160.42.2.el7.x86_64 #1
[33298938.023221] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
[33298938.023222] Call Trace:
[33298938.023240]  <IRQ>  [<ffffffffaeb83539>] dump_stack+0x19/0x1b
[33298938.024995]  [<ffffffffae49b278>] __warn+0xd8/0x100
[33298938.024998]  [<ffffffffae49b3bd>] warn_slowpath_null+0x1d/0x20
[33298938.025000]  [<ffffffffae55acfc>] rcu_process_callbacks+0x50c/0x570
[33298938.025003]  [<ffffffffae4a4bf5>] __do_softirq+0xf5/0x280
[33298938.025311]  [<ffffffffaeb994ec>] call_softirq+0x1c/0x30
[33298938.026118]  [<ffffffffae42f715>] do_softirq+0x65/0xa0
[33298938.026121]  [<ffffffffae4a4f75>] irq_exit+0x105/0x110
[33298938.026123]  [<ffffffffaeb9aa28>] smp_apic_timer_interrupt+0x48/0x60
[33298938.026124]  [<ffffffffaeb96fba>] apic_timer_interrupt+0x16a/0x170
[33298938.026125]  <EOI>  [<ffffffffaeb8b010>] ? __cpuidle_text_start+0x8/0x8
[33298938.026130]  [<ffffffffaeb8b25b>] ? native_safe_halt+0xb/0x20
[33298938.026132]  [<ffffffffaeb8b02e>] default_idle+0x1e/0xc0
[33298938.026137]  [<ffffffffae437ca0>] arch_cpu_idle+0x20/0xc0
[33298938.027692]  [<ffffffffae50181a>] cpu_startup_entry+0x14a/0x1e0
[33298938.027971]  [<ffffffffae45a827>] start_secondary+0x1f7/0x270
[33298938.029044]  [<ffffffffae4000d5>] start_cpu+0x5/0x14
[33298938.029046] ---[ end trace d35398d2aacf0a8e ]---
[33298938.045839] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
[33298938.046677] BUG: unable to handle kernel paging request at ffff925331de8510
[33298938.046680] IP: [<ffff925331de8510>] 0xffff925331de8510
[33298938.046693] PGD 7e675067 PUD 80000001800000e3 
[33298938.046695] Oops: 0011 [#1] SMP 
[33298938.047034] Modules linked in: nls_utf8 isofs loop tcp_diag udp_diag inet_diag xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock sunrpc ext4 mbcache jbd2 ppdev iosf_mbi crc32_pclmul vmw_balloon ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr sg i2c_piix4 vmw_vmci parport_pc parport binfmt_misc ip_tables xfs libcrc32c sr_mod cdrom ata_generic pata_acpi vmwgfx sd_mod crc_t10dif drm_kms_helper crct10dif_generic syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ahci drm crct10dif_pclmul crct10dif_common crc32c_intel
[33298938.047063]  ata_piix libahci nfit libata serio_raw libnvdimm vmxnet3 vmw_pvscsi drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod fuse
[33298938.047069] CPU: 4 PID: 0 Comm: swapper/4 Kdump: loaded Tainted: G        W      ------------   3.10.0-1160.42.2.el7.x86_64 #1
[33298938.047070] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
[33298938.047072] task: ffff9252ec4b0000 ti: ffff9252ec4b8000 task.ti: ffff9252ec4b8000
[33298938.047073] RIP: 0010:[<ffff925331de8510>]  [<ffff925331de8510>] 0xffff925331de8510
[33298938.047403] RSP: 0018:ffff9259bfd03eb8  EFLAGS: 00010296
[33298938.047404] RAX: ffff925331de8510 RBX: ffffffffaf07a380 RCX: 00000001d166388a
[33298938.047405] RDX: ffff925331de8510 RSI: ffff9251fa512900 RDI: ffff925331de8510
[33298938.047406] RBP: ffff9259bfd03f10 R08: 000000000001f120 R09: ffffffffae6506bf
[33298938.047407] R10: ffff9259bfd1f120 R11: fffffdfbc1e94480 R12: 000000000000000a
[33298938.047408] R13: 0000000000000012 R14: ffff925331de8510 R15: ffff9259bfd16380
[33298938.047409] FS:  0000000000000000(0000) GS:ffff9259bfd00000(0000) knlGS:0000000000000000
[33298938.047410] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[33298938.047411] CR2: ffff925331de8510 CR3: 000000081bff8000 CR4: 00000000007607e0
[33298938.047440] PKRU: 00000000
[33298938.047441] Call Trace:
[33298938.047442]  <IRQ> 
[33298938.047447]  [<ffffffffae55a9c8>] ? rcu_process_callbacks+0x1d8/0x570
[33298938.047452]  [<ffffffffae4a4bf5>] __do_softirq+0xf5/0x280
[33298938.047455]  [<ffffffffaeb994ec>] call_softirq+0x1c/0x30
[33298938.047457]  [<ffffffffae42f715>] do_softirq+0x65/0xa0
[33298938.047459]  [<ffffffffae4a4f75>] irq_exit+0x105/0x110
[33298938.047461]  [<ffffffffaeb9aa28>] smp_apic_timer_interrupt+0x48/0x60
[33298938.047462]  [<ffffffffaeb96fba>] apic_timer_interrupt+0x16a/0x170
[33298938.047463]  <EOI> 
[33298938.047466]  [<ffffffffaeb8b010>] ? __cpuidle_text_start+0x8/0x8
[33298938.047469]  [<ffffffffaeb8b25b>] ? native_safe_halt+0xb/0x20
[33298938.047470]  [<ffffffffaeb8b02e>] default_idle+0x1e/0xc0
[33298938.047472]  [<ffffffffae437ca0>] arch_cpu_idle+0x20/0xc0
[33298938.047476]  [<ffffffffae50181a>] cpu_startup_entry+0x14a/0x1e0
[33298938.047479]  [<ffffffffae45a827>] start_secondary+0x1f7/0x270
[33298938.047482]  [<ffffffffae4000d5>] start_cpu+0x5/0x14
[33298938.047483] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 85 de 31 53 92 ff ff 00 85 de 31 53 92 ff ff <10> 85 de 31 53 92 ff ff 10 85 de 31 53 92 ff ff 00 00 00 00 00 
[33298938.047500] RIP  [<ffff925331de8510>] 0xffff925331de8510
[33298938.047504]  RSP <ffff9259bfd03eb8>
[33298938.047505] CR2: ffff925331de8510