{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54087 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54087 is a vulnerability in Linux, published on 24 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-2023-54087 and fix it if it is affected.\n\nWhat it is: CVE-2023-54087 is a vulnerability in Linux, published on 24 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-2023-54087 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-2023-54087/ (Markdown: https://insights.sbomify.com/CVE-2023-54087/index.md)","id":"CVE-2023-54087","markdown":"https://insights.sbomify.com/CVE-2023-54087/index.md","name":"CVE-2023-54087","record":{"aliases":["BELL-CVE-2023-54087","DEBIAN-CVE-2023-54087","GHSA-9w7w-3xjc-3wgw","UBUNTU-CVE-2023-54087"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A null pointer dereference in the Linux kernel UBI subsystem allows local attackers to cause a denial of service via improper error handling during volume addition.","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\nubi: Fix possible null-ptr-deref in ubi_free_volume()\n\nIt willl cause null-ptr-deref in the following case:\n\nuif_init()\n  ubi_add_volume()\n    cdev_add() -\u003e if it fails, call kill_volumes()\n    device_register()\n\nkill_volumes() -\u003e if ubi_add_volume() fails call this function\n  ubi_free_volume()\n    cdev_del()\n    device_unregister() -\u003e trying to delete a not added device,\n\t\t\t   it causes null-ptr-deref\n\nSo in ubi_free_volume(), it delete devices whether they are added\nor not, it will causes null-ptr-deref.\n\nHandle the error case whlie calling ubi_add_volume() to fix this\nproblem. If add volume fails, set the corresponding vol to null,\nso it can not be accessed in kill_volumes() and release the\nresource in ubi_add_volume() error path.","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":"ubi: Fix possible null-ptr-deref in ubi_free_volume()","id":"CVE-2023-54087","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":8,"next":{"headline":"blk-cgroup: hold queue_lock when removing blkg-\u003eq_node","id":"CVE-2023-54088"},"packages":[],"prev":{"headline":"bpf: Add preempt_count_{sub,add} into btf id deny list","id":"CVE-2023-54086"},"products":["Linux"],"published":"2025-12-24","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":"A null pointer dereference in the Linux kernel UBI subsystem allows local attackers to cause a denial of service via improper error handling during volume addition.","url":"https://insights.sbomify.com/CVE-2023-54087/"}