{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80621 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80621 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-2026-80621 and fix it if it is affected.\n\nWhat it is: CVE-2026-80621 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-2026-80621 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-2026-80621/ (Markdown: https://insights.sbomify.com/CVE-2026-80621/index.md)","id":"CVE-2026-80621","markdown":"https://insights.sbomify.com/CVE-2026-80621/index.md","name":"CVE-2026-80621","record":{"aliases":["BELL-CVE-2026-80621","DEBIAN-CVE-2026-80621","GHSA-257h-4q39-v2v3","UBUNTU-CVE-2026-80621"],"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 PCI DWC driver can cause a system crash when debugfs teardown occurs without RAS DES capability.","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\nPCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability\n\ndwc_pcie_rasdes_debugfs_init() returns success when the controller has no\nRAS DES capability, leaving pci-\u003edebugfs-\u003erasdes_info unset. The common\ndebugfs teardown path still calls dwc_pcie_rasdes_debugfs_deinit(), which\ndereferences rasdes_info unconditionally.\n\nReturn early when no RAS DES state was allocated. In that case no RAS DES\nmutex was initialized, so there is nothing to destroy.\n\n[mani: reworded subject]","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":"PCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability","id":"CVE-2026-80621","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":"char: tlclk: fix use-after-free in tlclk_cleanup()","id":"CVE-2026-80622"},"packages":[],"prev":{"headline":"Revert \"PCI/MSI: Unmap MSI-X region on error\"","id":"CVE-2026-80620"},"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":"2026-08-28","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel PCI DWC driver can cause a system crash when debugfs teardown occurs without RAS DES capability.","url":"https://insights.sbomify.com/CVE-2026-80621/"}