{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-23042 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-23042 is a vulnerability in Linux, published on 4 Feb 2026. 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-2026-23042 and fix it if it is affected.\n\nWhat it is: CVE-2026-23042 is a vulnerability in Linux, published on 4 Feb 2026. 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-2026-23042 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-2026-23042/ (Markdown: https://insights.sbomify.com/CVE-2026-23042/index.md)","id":"CVE-2026-23042","markdown":"https://insights.sbomify.com/CVE-2026-23042/index.md","name":"CVE-2026-23042","record":{"aliases":["BELL-CVE-2026-23042","DEBIAN-CVE-2026-23042","GHSA-8936-48hj-4rqp","UBUNTU-CVE-2026-23042"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A null pointer dereference in the Linux kernel idpf driver causes a denial of service when unplugging auxiliary devices for vports without RDMA support.","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\nidpf: fix aux device unplugging when rdma is not supported by vport\n\nIf vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not\nallocate vdev_info for this vport. This leads to kernel NULL pointer\ndereference in idpf_idc_vport_dev_down(), which references vdev_info for\nevery vport regardless.\n\nCheck, if vdev_info was ever allocated before unplugging aux device.","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":"idpf: fix aux device unplugging when rdma is not supported by vport","id":"CVE-2026-23042","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"btrfs: fix NULL pointer dereference in do_abort_log_replay()","id":"CVE-2026-23043"},"packages":[],"prev":{"headline":"bnxt_en: Fix NULL pointer crash in bnxt_ptp_enable during error cleanup","id":"CVE-2026-23041"},"products":["Linux"],"published":"2026-02-04","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 idpf driver causes a denial of service when unplugging auxiliary devices for vports without RDMA support.","url":"https://insights.sbomify.com/CVE-2026-23042/"}