{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89516 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89516 is a denial of service vulnerability in Linux, published on 11 Sep 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-2026-89516 and fix it if it is affected.\n\nWhat it is: CVE-2026-89516 is a denial of service vulnerability in Linux, published on 11 Sep 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-2026-89516 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-2026-89516/ (Markdown: https://insights.sbomify.com/CVE-2026-89516/index.md)","id":"CVE-2026-89516","markdown":"https://insights.sbomify.com/CVE-2026-89516/index.md","name":"CVE-2026-89516","record":{"aliases":["DEBIAN-CVE-2026-89516","GHSA-99wv-m4hp-r266","UBUNTU-CVE-2026-89516"],"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 local attacker can trigger a kernel crash by destroying a dispatch queue while a deferred re-enqueue operation is pending.","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\nsched_ext: Don't BUG_ON a destroyed DSQ in process_deferred_reenq_users\n\nscx_bpf_dsq_reenq() queues a deferred reenq (dru) that runs from\nrun_deferred(), not ops.dispatch(). If the DSQ is destroyed before the dru\nruns, process_deferred_reenq_users() sees dsq-\u003eid == SCX_DSQ_INVALID and\nhits the BUG_ON. destroy_dsq() doesn't flush pending drus, so just skip.\n\ntj: Read dsq-\u003eid once with READ_ONCE(). Reading it separately in the INVALID\n    check and the BUG_ON would leave a window where destroy_dsq() can\n    invalidate the id between the two reads and still trigger the BUG_ON.","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":"sched_ext: Don't BUG_ON a destroyed DSQ in process_deferred_reenq_users","id":"CVE-2026-89516","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"sched_ext: Fix rq-\u003ecore_pick corruption under core scheduling","id":"CVE-2026-89517"},"packages":[],"prev":{"headline":"scsi: core: Fill in DMA padding bytes in scsi_alloc_sgtables()","id":"CVE-2026-89515"},"products":["Linux"],"published":"2026-09-11","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":"2026-10-19","vendors":["Linux"]},"summary":"A local attacker can trigger a kernel crash by destroying a dispatch queue while a deferred re-enqueue operation is pending.","url":"https://insights.sbomify.com/CVE-2026-89516/"}