{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-90159 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-90159 is a denial of service vulnerability in Linux, published on 17 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-2026-90159 and fix it if it is affected.\n\nWhat it is: CVE-2026-90159 is a denial of service vulnerability in Linux, published on 17 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-2026-90159 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-2026-90159/ (Markdown: https://insights.sbomify.com/CVE-2026-90159/index.md)","id":"CVE-2026-90159","markdown":"https://insights.sbomify.com/CVE-2026-90159/index.md","name":"CVE-2026-90159","record":{"aliases":["BELL-CVE-2026-90159","DEBIAN-CVE-2026-90159","GHSA-rcrw-xvqq-c49m","UBUNTU-CVE-2026-90159"],"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":"high_privilege","summary":"A local attacker with high privileges can trigger a kernel warning and potential instability by calling specific BPF helpers in cgroup UNIX getname hooks.","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\nbpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks\n\n_bpf_setsockopt() and _bpf_getsockopt() call sock_owned_by_me() for\nfull sockets, so these helpers expect the socket lock to be held.\n\nBPF_CGROUP_UNIX_GETPEERNAME and BPF_CGROUP_UNIX_GETSOCKNAME run BPF\nprograms without acquiring the socket lock. A program attached to\neither hook can therefore trigger the sock_owned_by_me() warning by\ncalling bpf_setsockopt() or bpf_getsockopt().\n\nDisallow bpf_setsockopt() and bpf_getsockopt() for CGROUP_UNIX_GETPEERNAME\nand CGROUP_UNIX_GETSOCKNAME.","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":"bpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks","id":"CVE-2026-90159","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"lwt_bpf: Restore reserved headroom after xmit program","id":"CVE-2026-90160"},"packages":[],"prev":{"headline":"m68k: nfcon: Do not call console_is_registered() in nfcon_device()","id":"CVE-2026-90158"},"products":["Linux"],"published":"2026-09-17","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 with high privileges can trigger a kernel warning and potential instability by calling specific BPF helpers in cgroup UNIX getname hooks.","url":"https://insights.sbomify.com/CVE-2026-90159/"}