{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-74309 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-74309 is a critical vulnerability in Linux, published on 15 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-74309 and fix it if it is affected.\n\nWhat it is: CVE-2026-74309 is a critical vulnerability in Linux, published on 15 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-74309 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-2026-74309/ (Markdown: https://insights.sbomify.com/CVE-2026-74309/index.md)","id":"CVE-2026-74309","markdown":"https://insights.sbomify.com/CVE-2026-74309/index.md","name":"CVE-2026-74309","record":{"aliases":["BELL-CVE-2026-74309","DEBIAN-CVE-2026-74309","GHSA-mxhm-35m8-cqc9","UBUNTU-CVE-2026-74309"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"Incorrect IRQ-to-ring mapping in the Octeon EP vDPA driver can cause incorrect ring indexing, potentially leading to system instability or denial of service.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler\n\nLook up the IRQ index in oct_hw-\u003eirqs instead of assuming\nirq - irqs[0]. This supports non-contiguous IRQ numbers and\navoids incorrect ring indexing when irqs[0] is not the base.","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":"vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler","id":"CVE-2026-74309","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"vhost/net: complete zerocopy ubufs only once","id":"CVE-2026-74310"},"packages":[],"prev":{"headline":"ext4: fix kernel BUG in ext4_write_inline_data_end","id":"CVE-2026-74308"},"products":["Linux"],"published":"2026-08-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-17","vendors":["Linux"]},"summary":"Incorrect IRQ-to-ring mapping in the Octeon EP vDPA driver can cause incorrect ring indexing, potentially leading to system instability or denial of service.","url":"https://insights.sbomify.com/CVE-2026-74309/"}