{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89926 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89926 is a vulnerability in Linux, published on 16 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-2026-89926 and fix it if it is affected.\n\nWhat it is: CVE-2026-89926 is a vulnerability in Linux, published on 16 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-2026-89926 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-2026-89926/ (Markdown: https://insights.sbomify.com/CVE-2026-89926/index.md)","id":"CVE-2026-89926","markdown":"https://insights.sbomify.com/CVE-2026-89926/index.md","name":"CVE-2026-89926","record":{"aliases":["AZL-101370","BELL-CVE-2026-89926","DEBIAN-CVE-2026-89926","GHSA-2m53-w88c-rh92","UBUNTU-CVE-2026-89926"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel KVM","requires_auth":"low_privilege","summary":"A local attacker can trigger a denial of service in the Linux kernel KVM s390 subsystem by exploiting an integer truncation flaw in length validation.","user_interaction":"not_required","vuln_class":"integer_overflow"},"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\nKVM: s390: Fix length check __import_wp_info()\n\nstruct kvm_hw_breakpoint::len is a __u64 that is fully controlled by user\nspace. This is then assigned to wp_info-\u003elen, which is an int. The bounds\ncheck is done on the truncated value while the allocation uses the\nuntruncated one:\n\n\twp_info-\u003elen = bp_data-\u003elen;\n\t[...]\n\tif (wp_info-\u003elen \u003c 0 || wp_info-\u003elen \u003e MAX_WP_SIZE)\n\t\treturn -EINVAL;\n\n\twp_info-\u003eold_data = kmalloc(bp_data-\u003elen, GFP_KERNEL_ACCOUNT);\n\nUse the validated value for the allocation as intended. Without this\nfix userspace can trigger \u003e4GB allocations which will fail and result\nin a WARN due to MAX_PAGE_ORDER.","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":"KVM: s390: Fix length check __import_wp_info()","id":"CVE-2026-89926","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"KVM: x86: hyper-v: Clamp stimer deadline to avoid livelock","id":"CVE-2026-89927"},"packages":[],"prev":{"headline":"KVM: s390: Fix memory leak in guest debug handling","id":"CVE-2026-89925"},"products":["Linux"],"published":"2026-09-16","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 denial of service in the Linux kernel KVM s390 subsystem by exploiting an integer truncation flaw in length validation.","url":"https://insights.sbomify.com/CVE-2026-89926/"}