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Vulnerability · Published Dec 30, 2025 · Assigned by Linux

CVE-2023-54296KVM: SVM: Get source vCPUs from source VM for SEV-ES intrahost migration

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 90.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Get source vCPUs from source VM for SEV-ES intrahost migration Fix a goof where KVM tries to grab source vCPUs from the destination VM when doing intrahost migration. Grabbing the wrong vCPU not only hoses the guest, it also crashes the host due to the VMSA pointer being left NULL. BUG: unable to handle page fault for address: ffffe38687000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI CPU: 39 PID: 17143 Comm: sev_migrate_tes Tainted: GO 6.5.0-smp--fff2e47e6c3b-next #151 Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 34.28.0 07/10/2023 RIP: 0010:__free_pages+0x15/0xd0 RSP: 0018:ffff923fcf6e3c78 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffe38687000000 RCX: 0000000000000100 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffffe38687000000 RBP: ffff923fcf6e3c88 R08: ffff923fcafb0000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff83619b90 R12: ffff923fa9540000 R13: 0000000000080007 R14: ffff923f6d35d000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff929d0d7c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffe38687000000 CR3: 0000005224c34005 CR4: 0000000000770ee0 PKRU: 55555554 Call Trace: <TASK> sev_free_vcpu+0xcb/0x110 [kvm_amd] svm_vcpu_free+0x75/0xf0 [kvm_amd] kvm_arch_vcpu_destroy+0x36/0x140 [kvm] kvm_destroy_vcpus+0x67/0x100 [kvm] kvm_arch_destroy_vm+0x161/0x1d0 [kvm] kvm_put_kvm+0x276/0x560 [kvm] kvm_vm_release+0x25/0x30 [kvm] __fput+0x106/0x280 ____fput+0x12/0x20 task_work_run+0x86/0xb0 do_exit+0x2e3/0x9c0 do_group_exit+0xb1/0xc0 __x64_sys_exit_group+0x1b/0x20 do_syscall_64+0x41/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd </TASK> CR2: ffffe38687000000

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-abi-stablelists4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-core4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-cross-headers4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-debug4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-debug-core4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-debug-devel4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-debug-modules4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-devel4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-doc4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-headers4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-modules4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-modules-extra4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-tools4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-tools-libs4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-zfcpdump4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8perf4.18.0-553.34.1.el8_10ALSA-2025:0065
AlmaLinux:8python3-perf4.18.0-553.34.1.el8_10ALSA-2025:0065
Debian:12linux6.1.55-1DEBIAN-CVE-2023-54296
Debian:13linux6.5.6-1DEBIAN-CVE-2023-54296
Debian:14linux6.5.6-1DEBIAN-CVE-2023-54296
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-54296
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-54296

Affected products (as reported)

VendorProductVersions
Linux Linux 6defa24d3b12bbd418bc8526dea1cbc605265c06 – before 5c18ace750e4d4d58d7da02d1c669bf21c8241586defa24d3b12bbd418bc8526dea1cbc605265c06 – before 2ee4b180d51b12a45bdd3264629719ef6a572a736defa24d3b12bbd418bc8526dea1cbc605265c06 – before f1187ef24eb8f36e8ad8106d22615ceddeea6097229334a8b1d0d5e60d3bdd091bbc4552d5321c975.18.8 – before 5.19
Linux Linux 5.19

References