{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-74575 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-74575 is a high-severity use after free vulnerability in Linux, published on 15 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-2026-74575 and fix it if it is affected.\n\nWhat it is: CVE-2026-74575 is a high-severity use after free vulnerability in Linux, published on 15 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-2026-74575 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-2026-74575/ (Markdown: https://insights.sbomify.com/CVE-2026-74575/index.md)","id":"CVE-2026-74575","markdown":"https://insights.sbomify.com/CVE-2026-74575/index.md","name":"CVE-2026-74575","record":{"aliases":["BELL-CVE-2026-74575","DEBIAN-CVE-2026-74575","GHSA-87c7-v43r-f3f4","UBUNTU-CVE-2026-74575"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel Thunderbolt","requires_auth":"none","summary":"A race condition in the Linux kernel Thunderbolt driver allows a use-after-free during device disconnect, potentially leading to code execution or system crash.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/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\nthunderbolt: Prevent XDomain delayed work use-after-free on disconnect\n\ntb_xdp_handle_request() runs on system_wq and queues\nxd-\u003estate_work via queue_delayed_work() in three request handlers:\nPROPERTIES_CHANGED_REQUEST, UUID_REQUEST (via start_handshake),\nand LINK_STATE_CHANGE_REQUEST.  Similarly, update_xdomain() queues\nxd-\u003eproperties_changed_work when local properties change.\n\nConcurrently, tb_xdomain_remove() calls stop_handshake() which does\ncancel_delayed_work_sync() on both delayed works.  Later,\ntb_xdomain_unregister() calls device_unregister() which eventually\nfrees the xdomain.  Since commit 559c1e1e0134 (\"thunderbolt: Run\ntb_xdp_handle_request() in system workqueue\") moved the request\nhandler off tb-\u003ewq, the handler and the remove path are no longer\nserialized.  If queue_delayed_work() executes after\ncancel_delayed_work_sync() but before the xdomain is freed, the\ndelayed work fires on a freed object.\n\nAdd xd-\u003eremoving that tb_xdomain_remove() sets under xd-\u003elock\nbefore calling stop_handshake().  Each external queue site holds\nthe same lock and checks removing before calling\nqueue_delayed_work().  This provides the mutual exclusion needed:\neither the queue site acquires the lock first and queues work that\nthe subsequent cancel will see, or the remove path acquires the\nlock first and the queue site observes removing == true and skips\nthe queue.","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: Prevent XDomain delayed work use-after-free on disconnect","id":"CVE-2026-74575","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"mm/slab: prevent unbounded recursion in free path with new kmalloc type","id":"CVE-2026-74576"},"packages":[],"prev":{"headline":"dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open()","id":"CVE-2026-74574"},"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["Linux"]},"summary":"A race condition in the Linux kernel Thunderbolt driver allows a use-after-free during device disconnect, potentially leading to code execution or system crash.","url":"https://insights.sbomify.com/CVE-2026-74575/"}