{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-23039 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-23039 is a vulnerability in Linux, published on 31 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-23039 and fix it if it is affected.\n\nWhat it is: CVE-2026-23039 is a vulnerability in Linux, published on 31 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-23039 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-2026-23039/ (Markdown: https://insights.sbomify.com/CVE-2026-23039/index.md)","id":"CVE-2026-23039","markdown":"https://insights.sbomify.com/CVE-2026-23039/index.md","name":"CVE-2026-23039","record":{"aliases":["BELL-CVE-2026-23039","DEBIAN-CVE-2026-23039","GHSA-8v58-m3wh-hhg4","UBUNTU-CVE-2026-23039"],"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 local attacker with physical access can cause a kernel crash by disconnecting a USB display, leading to denial of service.","user_interaction":"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\ndrm/gud: fix NULL fb and crtc dereferences on USB disconnect\n\nOn disconnect drm_atomic_helper_disable_all() is called which\nsets both the fb and crtc for a plane to NULL before invoking a commit.\n\nThis causes a kernel oops on every display disconnect.\n\nAdd guards for those dereferences.","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":"drm/gud: fix NULL fb and crtc dereferences on USB disconnect","id":"CVE-2026-23039","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":"wifi: mac80211_hwsim: fix typo in frequency notification","id":"CVE-2026-23040"},"packages":[],"prev":{"headline":"pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node()","id":"CVE-2026-23038"},"products":["Linux"],"published":"2026-01-31","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 local attacker with physical access can cause a kernel crash by disconnecting a USB display, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-23039/"}