{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93078 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-93078 is a 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-2026-93078 and fix it if it is affected.\n\nWhat it is: CVE-2026-93078 is a 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-2026-93078 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-2026-93078/ (Markdown: https://insights.sbomify.com/CVE-2026-93078/index.md)","id":"CVE-2026-93078","markdown":"https://insights.sbomify.com/CVE-2026-93078/index.md","name":"CVE-2026-93078","record":{"aliases":["BELL-CVE-2026-93078","DEBIAN-CVE-2026-93078","GHSA-ww8v-32xc-j2p4","UBUNTU-CVE-2026-93078"],"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":"low_privilege","summary":"A local attacker can trigger a kernel crash by providing a zero-length output buffer to the CXL Set Features command, causing a null pointer dereference.","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\ncxl/features: Reject Set Features output buffer smaller than the header\n\ncxlctl_set_feature() sizes its output buffer from the user's\nfwctl_rpc.out_len but never checks it is large enough to hold even the\nfwctl_rpc_cxl_out header. With out_len == 0 , kvzalloc() returns\nZERO_SIZE_PTR, which passes the !rpc_out check, the subsequent\nrpc_out-\u003esize = 0 then writes through the poison pointer.\n\nReject requests whose output buffer can't hold the response header,\nbefore allocating. The Set Feature reply carries no payload, so the\nheader is all that is required.","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":"cxl/features: Reject Set Features output buffer smaller than the header","id":"CVE-2026-93078","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":"cxl/features: Reject Get Feature count larger than the output buffer","id":"CVE-2026-93079"},"packages":[],"prev":{"headline":"cxl/features: Clamp Get Feature output size to the remaining buffer","id":"CVE-2026-93077"},"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 can trigger a kernel crash by providing a zero-length output buffer to the CXL Set Features command, causing a null pointer dereference.","url":"https://insights.sbomify.com/CVE-2026-93078/"}