{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89733 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89733 is a high-severity use after free 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-2026-89733 and fix it if it is affected.\n\nWhat it is: CVE-2026-89733 is a high-severity use after free 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-2026-89733 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-2026-89733/ (Markdown: https://insights.sbomify.com/CVE-2026-89733/index.md)","id":"CVE-2026-89733","markdown":"https://insights.sbomify.com/CVE-2026-89733/index.md","name":"CVE-2026-89733","record":{"aliases":["AZL-100431","BELL-CVE-2026-89733","DEBIAN-CVE-2026-89733","GHSA-p2g2-5xg5-fj3w","UBUNTU-CVE-2026-89733"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB gadget","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel's USB gadget UVC driver allows attackers to potentially execute code or escalate privileges via dangling pointers.","user_interaction":"not_required","vuln_class":"use_after_free"},"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\nusb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()\n\nIn uvc_function_bind() error path, we use usb_ep_free_request which\nuses uvc-\u003econtrol_req but does not set it to NULL afterwards. Thus,\nuvc-\u003econtrol_req is a dangling pointer causing a UAF. Also we do not set\nthe uvc-\u003econtrol_buf pointer to NULL after freeing it, which is another\ndangling pointer. Fix it by setting uvc-\u003econtrol_req to NULL after we run\nusb_ep_free_request() and uvc-\u003econtrol_buf to NULL after kfree. Do the\nsame for uvc_function_unbind().","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":"usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()","id":"CVE-2026-89733","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":"usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()","id":"CVE-2026-89734"},"packages":[],"prev":{"headline":"usb: gadget: f_fs: Prevent deadlock during ep0 read loop","id":"CVE-2026-89732"},"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 use-after-free vulnerability in the Linux kernel's USB gadget UVC driver allows attackers to potentially execute code or escalate privileges via dangling pointers.","url":"https://insights.sbomify.com/CVE-2026-89733/"}