{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98691 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98691 is an use after free vulnerability in Linux, published on 18 Oct 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-2026-98691 and fix it if it is affected.\n\nWhat it is: CVE-2026-98691 is an use after free vulnerability in Linux, published on 18 Oct 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-2026-98691 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-2026-98691/ (Markdown: https://insights.sbomify.com/CVE-2026-98691/index.md)","id":"CVE-2026-98691","markdown":"https://insights.sbomify.com/CVE-2026-98691/index.md","name":"CVE-2026-98691","record":{"aliases":["BELL-CVE-2026-98691","DEBIAN-CVE-2026-98691","GHSA-7w6x-49rw-4c9g","UBUNTU-CVE-2026-98691"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A use-after-free in the Linux kernel Thunderbolt driver allows local attackers to cause a denial of service or potentially execute code by triggering a race condition during domain teardown.","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\nthunderbolt: Tear down inactive DP tunnels when the domain is stopped\n\ntb_stop() only tears down DMA tunnels so a DP tunnel that is still\nwaiting for dprx_work to complete keeps that work queued while the\nrouters are removed and the control channel is stopped. The work only\nstops once the DPRX timeout has passed and because it requeues itself\nuntil then the flush_workqueue() in tb_domain_remove() won't wait for its\nfinal run. The callback then runs against a domain that is already torn\ndown. A reference to that domain is kept so the completion waiting for\nthat domain to disappear in unbind will block until the timeout is\neventually reached.\n\nTear down DP tunnels that are not active yet as well which also cancels\nthat work. Tunnels for displays that are already alive are untouched and\nkeep working.","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":"thunderbolt: Tear down inactive DP tunnels when the domain is stopped","id":"CVE-2026-98691","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":"thunderbolt: Make the DP tunnel activation callback mandatory","id":"CVE-2026-98692"},"packages":[],"prev":{"headline":"thunderbolt: Fix domain reference leak when DPRX read is canceled","id":"CVE-2026-98690"},"products":["Linux"],"published":"2026-10-18","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 in the Linux kernel Thunderbolt driver allows local attackers to cause a denial of service or potentially execute code by triggering a race condition during domain teardown.","url":"https://insights.sbomify.com/CVE-2026-98691/"}