{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54296 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54296 is a vulnerability in Linux, published on 30 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-54296 and fix it if it is affected.\n\nWhat it is: CVE-2023-54296 is a vulnerability in Linux, published on 30 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-54296 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-54296/ (Markdown: https://insights.sbomify.com/CVE-2023-54296/index.md)","id":"CVE-2023-54296","markdown":"https://insights.sbomify.com/CVE-2023-54296/index.md","name":"CVE-2023-54296","record":{"aliases":["BELL-CVE-2023-54296","DEBIAN-CVE-2023-54296","GHSA-68cr-cmrr-85gj","UBUNTU-CVE-2023-54296"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel KVM","requires_auth":"high_privilege","summary":"A null pointer dereference in KVM SVM SEV-ES migration allows a privileged local attacker to crash the host system.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SVM: Get source vCPUs from source VM for SEV-ES intrahost migration\n\nFix a goof where KVM tries to grab source vCPUs from the destination VM\nwhen doing intrahost migration.  Grabbing the wrong vCPU not only hoses\nthe guest, it also crashes the host due to the VMSA pointer being left\nNULL.\n\n  BUG: unable to handle page fault for address: ffffe38687000000\n  #PF: supervisor read access in kernel mode\n  #PF: error_code(0x0000) - not-present page\n  PGD 0 P4D 0\n  Oops: 0000 [#1] SMP NOPTI\n  CPU: 39 PID: 17143 Comm: sev_migrate_tes Tainted: GO       6.5.0-smp--fff2e47e6c3b-next #151\n  Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 34.28.0 07/10/2023\n  RIP: 0010:__free_pages+0x15/0xd0\n  RSP: 0018:ffff923fcf6e3c78 EFLAGS: 00010246\n  RAX: 0000000000000000 RBX: ffffe38687000000 RCX: 0000000000000100\n  RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffffe38687000000\n  RBP: ffff923fcf6e3c88 R08: ffff923fcafb0000 R09: 0000000000000000\n  R10: 0000000000000000 R11: ffffffff83619b90 R12: ffff923fa9540000\n  R13: 0000000000080007 R14: ffff923f6d35d000 R15: 0000000000000000\n  FS:  0000000000000000(0000) GS:ffff929d0d7c0000(0000) knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: ffffe38687000000 CR3: 0000005224c34005 CR4: 0000000000770ee0\n  PKRU: 55555554\n  Call Trace:\n   \u003cTASK\u003e\n   sev_free_vcpu+0xcb/0x110 [kvm_amd]\n   svm_vcpu_free+0x75/0xf0 [kvm_amd]\n   kvm_arch_vcpu_destroy+0x36/0x140 [kvm]\n   kvm_destroy_vcpus+0x67/0x100 [kvm]\n   kvm_arch_destroy_vm+0x161/0x1d0 [kvm]\n   kvm_put_kvm+0x276/0x560 [kvm]\n   kvm_vm_release+0x25/0x30 [kvm]\n   __fput+0x106/0x280\n   ____fput+0x12/0x20\n   task_work_run+0x86/0xb0\n   do_exit+0x2e3/0x9c0\n   do_group_exit+0xb1/0xc0\n   __x64_sys_exit_group+0x1b/0x20\n   do_syscall_64+0x41/0x90\n   entry_SYSCALL_64_after_hwframe+0x63/0xcd\n   \u003c/TASK\u003e\n  CR2: ffffe38687000000","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"KVM: SVM: Get source vCPUs from source VM for SEV-ES intrahost migration","id":"CVE-2023-54296","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"btrfs: zoned: fix memory leak after finding block group with super blocks","id":"CVE-2023-54297"},"packages":[],"prev":{"headline":"mtd: spi-nor: Fix shift-out-of-bounds in spi_nor_set_erase_type","id":"CVE-2023-54295"},"products":["Linux"],"published":"2025-12-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-23","vendors":["Linux"]},"summary":"A null pointer dereference in KVM SVM SEV-ES migration allows a privileged local attacker to crash the host system.","url":"https://insights.sbomify.com/CVE-2023-54296/"}