RHEL 10 cannot boot on older CPU that does not support x86-64-v3

Issue

• While trying to boot on an old CPU, the glibc crashes with a fatal error:

  [    1.905573] Run /init as init process
  Fatal glibc error: CPU does not support x86-64-v3
  [    1.906770] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00
  [    1.907417] CPU: 2 UID: 0 PID: 1 Comm: init Not tainted 6.12.0-55.11.1.el10_0.x86_64 #1
  [    1.908102] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-3.fc41 04/01/2014
  [    1.908822] Call Trace:
  [    1.909045]  <TASK>
  [    1.909245]  dump_stack_lvl+0x4e/0x70
  [    1.909577]  panic+0x113/0x2dd
  [    1.909860]  do_exit.cold+0x15/0x15
  [    1.910167]  do_group_exit+0x30/0x80
  [    1.910482]  __x64_sys_exit_group+0x18/0x20
  [    1.910844]  x64_sys_call+0x14b4/0x14c0
  [    1.911185]  do_syscall_64+0x7d/0x160
  [    1.911512]  ? __lruvec_stat_mod_folio+0x86/0xd0
  [    1.911917]  ? arch_exit_to_user_mode_prepare.isra.0+0x83/0xb0
  [    1.912429]  ? syscall_exit_to_user_mode+0x32/0x190
  [    1.912852]  ? do_syscall_64+0x89/0x160
  [    1.913185]  ? __mod_memcg_lruvec_state+0xe2/0x190
  [    1.913605]  ? do_read_fault+0xfa/0x1f0
  [    1.913944]  ? do_fault+0x200/0x330
  [    1.914251]  ? __handle_mm_fault+0x30f/0x740
  [    1.914635]  ? __count_memcg_events+0x87/0x120
  [    1.915023]  ? handle_mm_fault+0x234/0x350
  [    1.915378]  ? do_user_addr_fault+0x347/0x640
  [    1.915763]  ? exc_page_fault+0x73/0x160
  [    1.916103]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
  [    1.916545] RIP: 0033:0x7f76af17bfc5
  [    1.916860] Code: ba 01 00 00 00 b8 ca 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 f3 0f 1e fa ba e7 00 00 00 eb 06 0f 1f 44 00 00 f4 89 d0 0f 05 <48> 3d 00 f0 ff ff 76 f3 f7 d8 89 05 cb 12 01 00 eb e9 66 0f 1f 84
  [    1.918439] RSP: 002b:00007ffcaf49a978 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
  [    1.920059] RAX: ffffffffffffffda RBX: 00007f76af176f30 RCX: 00007f76af17bfc5
  [    1.920671] RDX: 00000000000000e7 RSI: 00007ffcaf49a040 RDI: 000000000000007f
  [    1.921297] RBP: 00007ffcaf49ab50 R08: 0000000000000000 R09: 0000000000000000
  [    1.921908] R10: ffffffffffffffff R11: 0000000000000206 R12: 00007ffcaf49ab20
  [    1.922513] R13: 00007ffcaf49aae0 R14: 0000000000000025 R15: 00007f76af159000
  [    1.923367]  </TASK>
  [    1.932366] Kernel Offset: 0x4400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
  [    1.934137] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00 ]---
  

• Trying to boot with the RHEL 10 iso on a VM immediately reboots the system, no matter what option from the GRUB menu is chosen.