[Xen HVM] kernel-4.18.0-553.50.1.el8_10 panic at 'xen_time_init()' during boot.

Issue

• The kernel-4.18.0-553.50.1.el8_10 fails to boot and panic at xen_time_init() function during boot, specifically on standalone Xen + intel CPU, and legacy AWS instances.
• The issue started reproducing after updating the system from 4.18.0-553.47.1.el8_10 to 4.18.0-553.50.1.el8_10 as part of CVE-2024-53241.

[    0.262012] invalid opcode: 0000 [#1] SMP PTI
[    0.263000] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-553.50.1.el8_10.x86_64 #1
[    0.263000] Hardware name: Xen HVM domU, BIOS 4.13 12/03/2021
[    0.263000] RIP: 0010:xen_time_init+0x66/0x1f2
..
[    0.263000] Call Trace:
[    0.263000]  native_smp_prepare_cpus+0xc4/0x166
[    0.263000]  xen_hvm_smp_prepare_cpus+0xc/0x65
[    0.263000]  kernel_init_freeable+0xd3/0x23a
[    0.263000]  kernel_init+0xa/0x10a
[    0.263000]  ret_from_fork+0x1f/0x40
[    0.263000] Modules linked in:
[    0.487004] ---[ end trace 2762b0c1555c06ae ]---
[    0.490001] RIP: 0010:xen_time_init+0x66/0x1f2