{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89509 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89509 is a 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-2026-89509 and fix it if it is affected.\n\nWhat it is: CVE-2026-89509 is a 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-2026-89509 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-2026-89509/ (Markdown: https://insights.sbomify.com/CVE-2026-89509/index.md)","id":"CVE-2026-89509","markdown":"https://insights.sbomify.com/CVE-2026-89509/index.md","name":"CVE-2026-89509","record":{"aliases":["BELL-CVE-2026-89509","DEBIAN-CVE-2026-89509","GHSA-p644-p7x2-xc3f","UBUNTU-CVE-2026-89509"],"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":"low_privilege","summary":"A missing driver adaptation in the Linux kernel RDMA/ionic driver causes a NULL pointer dereference, leading to a denial of service.","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\nRDMA/ionic: Embed counter driver data in rdma_counter allocation\n\nCommit 7e53b31acc7f (\"RDMA/core: Create and destroy rdma_counter using\nrdma_zalloc_drv_obj()\") requires drivers implementing counter ops to\nembed struct rdma_counter in a driver-specific struct, register its size\nvia INIT_RDMA_OBJ_SIZE, and provide a counter_init callback.\n\nThe ionic driver was merged without this adaptation, causing a NULL\npointer dereference in alloc_and_bind() since rdma_zalloc_drv_obj()\nallocates zero bytes when size_rdma_counter is unset.\n\nConsolidate struct ionic_counter into a new struct ionic_rdma_counter\nthat embeds struct rdma_counter, replace the xarray with a lightweight\nida for ID allocation, and add the required counter_init and\nINIT_RDMA_OBJ_SIZE declarations.","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":"RDMA/ionic: Embed counter driver data in rdma_counter allocation","id":"CVE-2026-89509","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"RDMA/cxgb4: Cancel reg_work before freeing device on remove","id":"CVE-2026-89510"},"packages":[],"prev":{"headline":"RDMA/ucma: Lock the handler in ucma_set_ib_path()","id":"CVE-2026-89508"},"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 missing driver adaptation in the Linux kernel RDMA/ionic driver causes a NULL pointer dereference, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2026-89509/"}