{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54172 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54172 is a denial of service 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-2023-54172 and fix it if it is affected.\n\nWhat it is: CVE-2023-54172 is a denial of service 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-2023-54172 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-2023-54172/ (Markdown: https://insights.sbomify.com/CVE-2023-54172/index.md)","id":"CVE-2023-54172","markdown":"https://insights.sbomify.com/CVE-2023-54172/index.md","name":"CVE-2023-54172","record":{"aliases":["BELL-CVE-2023-54172","DEBIAN-CVE-2023-54172","GHSA-3fcf-v62x-cm7w","ROOT-OS-UBUNTU-2204-CVE-2023-54172","UBUNTU-CVE-2023-54172"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel","requires_auth":"none","summary":"Linux kernel panics on Hyper-V VMs with IBT enabled due to missing ENDBR instructions, causing denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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\nx86/hyperv: Disable IBT when hypercall page lacks ENDBR instruction\n\nOn hardware that supports Indirect Branch Tracking (IBT), Hyper-V VMs\nwith ConfigVersion 9.3 or later support IBT in the guest. However,\ncurrent versions of Hyper-V have a bug in that there's not an ENDBR64\ninstruction at the beginning of the hypercall page. Since hypercalls are\nmade with an indirect call to the hypercall page, all hypercall attempts\nfail with an exception and Linux panics.\n\nA Hyper-V fix is in progress to add ENDBR64. But guard against the Linux\npanic by clearing X86_FEATURE_IBT if the hypercall page doesn't start\nwith ENDBR. The VM will boot and run without IBT.\n\nIf future Linux 32-bit kernels were to support IBT, additional hypercall\npage hackery would be needed to make IBT work for such kernels in a\nHyper-V VM.","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":"x86/hyperv: Disable IBT when hypercall page lacks ENDBR instruction","id":"CVE-2023-54172","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"bpf: Disable preemption in bpf_event_output","id":"CVE-2023-54173"},"packages":[],"prev":{"headline":"tracing: Fix memory leak of iter-\u003etemp when reading trace_pipe","id":"CVE-2023-54171"},"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":"2026-05-11","vendors":["Linux"]},"summary":"Linux kernel panics on Hyper-V VMs with IBT enabled due to missing ENDBR instructions, causing denial of service.","url":"https://insights.sbomify.com/CVE-2023-54172/"}