{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93267 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-93267 is an use after free vulnerability in Linux, published on 24 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-2026-93267 and fix it if it is affected.\n\nWhat it is: CVE-2026-93267 is an use after free vulnerability in Linux, published on 24 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-2026-93267 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-2026-93267/ (Markdown: https://insights.sbomify.com/CVE-2026-93267/index.md)","id":"CVE-2026-93267","markdown":"https://insights.sbomify.com/CVE-2026-93267/index.md","name":"CVE-2026-93267","record":{"aliases":["BELL-CVE-2026-93267","DEBIAN-CVE-2026-93267","GHSA-w75x-m786-pw39","UBUNTU-CVE-2026-93267"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel RDMA","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel RDMA subsystem allows local attackers to potentially execute code or escalate privileges via netlink access.","user_interaction":"not_required","vuln_class":"use_after_free"},"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/core: Fix potential use after free in uverbs_free_dmah()\n\nWhen accessing a dmah via the netlink path the only synchronization\nmechanism for the said dmah is rdma_restrack_get().\nCurrently, rdma_restrack_del() is invoked at the end of\nuverbs_free_dmah(), which is too late, since by that point\nvendor-specific resources associated with the dmah might already be\nfreed. This can leave a short window where the dmah remains accessible\nthrough restrack, leading to a potential use-after-free.\n\nFix this by moving the rdma_restrack_begin_del() call to the start of\nuverbs_free_dmah(), ensuring that the dmah is removed from restrack\nbefore its internal resources are released. This guarantees that no new\nusers hold references to a dmah that is in the process of destruction.\n\nIn addition, this change preserves the intended inverted order\nbetween create and destroy routines: resources are added to\nrestrack at the end of successful creation, and hence shall be removed\nfrom the restrack first thing during the destruction flow, which keeps\nthe lifecycle management consistent and predictable.","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/core: Fix potential use after free in uverbs_free_dmah()","id":"CVE-2026-93267","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"ext4: skip extra isize expansion during mount to prevent deadlock","id":"CVE-2026-93268"},"packages":[],"prev":{"headline":"arm64: RSI: fix field-spanning write warning in attestation token init","id":"CVE-2026-93266"},"products":["Linux"],"published":"2026-09-24","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 use-after-free vulnerability in the Linux kernel RDMA subsystem allows local attackers to potentially execute code or escalate privileges via netlink access.","url":"https://insights.sbomify.com/CVE-2026-93267/"}