{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80954 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80954 is a high-severity vulnerability in Linux, published on 11 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-2026-80954 and fix it if it is affected.\n\nWhat it is: CVE-2026-80954 is a high-severity vulnerability in Linux, published on 11 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-2026-80954 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-2026-80954/ (Markdown: https://insights.sbomify.com/CVE-2026-80954/index.md)","id":"CVE-2026-80954","markdown":"https://insights.sbomify.com/CVE-2026-80954/index.md","name":"CVE-2026-80954","record":{"aliases":["DEBIAN-CVE-2026-80954","GHSA-5fmf-26vf-rg68","UBUNTU-CVE-2026-80954"],"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 missing lock in the Linux kernel i3c driver allows a null pointer dereference, potentially causing a system crash.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: Fix unlocked dereference of dev-\u003edesc in i3c_device_get_supported_xfer_mode()\n\ni3c_device_get_supported_xfer_mode() uses dev-\u003edesc to obtain the\nmaster controller.  However, dev-\u003edesc must not be dereferenced unless\nbus-\u003elock is held, and this function does not take that lock.\n\nThe function only needs access to the master controller associated with\nthe device's bus.  Use dev-\u003ebus instead, which is always valid for the\nlifetime of the device and does not require dereferencing dev-\u003edesc.","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":"i3c: Fix unlocked dereference of dev-\u003edesc in i3c_device_get_supported_xfer_mode()","id":"CVE-2026-80954","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"dm-pcache: fix use-after-free and invalid seg operations in kset_replay()","id":"CVE-2026-80955"},"packages":[],"prev":{"headline":"i3c: master: adi: initialize the lock before enabling interrupts","id":"CVE-2026-80953"},"products":["Linux"],"published":"2026-09-11","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":"2026-10-19","vendors":["Linux"]},"summary":"A missing lock in the Linux kernel i3c driver allows a null pointer dereference, potentially causing a system crash.","url":"https://insights.sbomify.com/CVE-2026-80954/"}