{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80689 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80689 is a vulnerability in Linux, published on 28 Aug 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-2026-80689 and fix it if it is affected.\n\nWhat it is: CVE-2026-80689 is a vulnerability in Linux, published on 28 Aug 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-2026-80689 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-2026-80689/ (Markdown: https://insights.sbomify.com/CVE-2026-80689/index.md)","id":"CVE-2026-80689","markdown":"https://insights.sbomify.com/CVE-2026-80689/index.md","name":"CVE-2026-80689","record":{"aliases":["AZL-98175","BELL-CVE-2026-80689","DEBIAN-CVE-2026-80689","GHSA-6q77-h2mr-vrm4","UBUNTU-CVE-2026-80689"],"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":"none","summary":"A NULL pointer dereference in the Linux kernel's mmiotrace logging functions can cause a system crash, requiring a kernel patch.","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\ntracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions\n\nmmio_trace_rw() and mmio_trace_mapping() retrieve mmio_trace_array into\ntr and pass it to __trace_mmiotrace_rw() and __trace_mmiotrace_map().\nIf these functions are invoked while mmio_trace_array is NULL (e.g. before\ninitialization or after disabled), accessing tr-\u003earray_buffer.buffer will\nresult in a NULL pointer dereference crash.\n\nFix this by adding an explicit NULL check for tr at the beginning of\n__trace_mmiotrace_rw() and __trace_mmiotrace_map().","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":"tracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions","id":"CVE-2026-80689","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"scsi: ufs: core: Initialize hba-\u003erpmbs list in ufshcd","id":"CVE-2026-80690"},"packages":[],"prev":{"headline":"riscv: drop __init from vec_check_unaligned_access_speed_all_cpus","id":"CVE-2026-80688"},"products":["Linux"],"published":"2026-08-28","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":"2026-09-14","vendors":["Linux"]},"summary":"A NULL pointer dereference in the Linux kernel's mmiotrace logging functions can cause a system crash, requiring a kernel patch.","url":"https://insights.sbomify.com/CVE-2026-80689/"}