{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2022-50704 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-50704 is an use after free vulnerability in Linux, published on 24 Dec 2025. 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-2022-50704 and fix it if it is affected.\n\nWhat it is: CVE-2022-50704 is an use after free vulnerability in Linux, published on 24 Dec 2025. 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-2022-50704 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-2022-50704/ (Markdown: https://insights.sbomify.com/CVE-2022-50704/index.md)","id":"CVE-2022-50704","markdown":"https://insights.sbomify.com/CVE-2022-50704/index.md","name":"CVE-2022-50704","record":{"aliases":["DEBIAN-CVE-2022-50704","GHSA-mj7r-48h2-hmpx","ROOT-OS-DEBIAN-11-CVE-2022-50704","ROOT-OS-UBUNTU-2204-CVE-2022-50704","UBUNTU-CVE-2022-50704"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel USB gadget","requires_auth":"high_privilege","summary":"A use-after-free in the Linux kernel USB gadget driver allows local attackers with high privileges to cause a system panic during USB configuration switching.","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\nUSB: gadget: Fix use-after-free during usb config switch\n\nIn the process of switching USB config from rndis to other config,\nif the hardware does not support the -\u003epullup callback, or the\nhardware encounters a low probability fault, both of them may cause\nthe -\u003epullup callback to fail, which will then cause a system panic\n(use after free).\n\nThe gadget drivers sometimes need to be unloaded regardless of the\nhardware's behavior.\n\nAnalysis as follows:\n=======================================================================\n(1) write /config/usb_gadget/g1/UDC \"none\"\n\ngether_disconnect+0x2c/0x1f8\nrndis_disable+0x4c/0x74\ncomposite_disconnect+0x74/0xb0\nconfigfs_composite_disconnect+0x60/0x7c\nusb_gadget_disconnect+0x70/0x124\nusb_gadget_unregister_driver+0xc8/0x1d8\ngadget_dev_desc_UDC_store+0xec/0x1e4\n\n(2) rm /config/usb_gadget/g1/configs/b.1/f1\n\nrndis_deregister+0x28/0x54\nrndis_free+0x44/0x7c\nusb_put_function+0x14/0x1c\nconfig_usb_cfg_unlink+0xc4/0xe0\nconfigfs_unlink+0x124/0x1c8\nvfs_unlink+0x114/0x1dc\n\n(3) rmdir /config/usb_gadget/g1/functions/rndis.gs4\n\npanic+0x1fc/0x3d0\ndo_page_fault+0xa8/0x46c\ndo_mem_abort+0x3c/0xac\nel1_sync_handler+0x40/0x78\n0xffffff801138f880\nrndis_close+0x28/0x34\neth_stop+0x74/0x110\ndev_close_many+0x48/0x194\nrollback_registered_many+0x118/0x814\nunregister_netdev+0x20/0x30\ngether_cleanup+0x1c/0x38\nrndis_attr_release+0xc/0x14\nkref_put+0x74/0xb8\nconfigfs_rmdir+0x314/0x374\n\nIf gadget-\u003eops-\u003epullup() return an error, function rndis_close() will be\ncalled, then it will causes a use-after-free problem.\n=======================================================================","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: Fix use-after-free during usb config switch","id":"CVE-2022-50704","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"io_uring/rw: defer fsnotify calls to task context","id":"CVE-2022-50705"},"packages":[],"prev":{"headline":"soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()","id":"CVE-2022-50703"},"products":["Linux"],"published":"2025-12-24","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":"2026-05-11","vendors":["Linux"]},"summary":"A use-after-free in the Linux kernel USB gadget driver allows local attackers with high privileges to cause a system panic during USB configuration switching.","url":"https://insights.sbomify.com/CVE-2022-50704/"}