{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-28T23:46:31.067","vulnerabilities":[{"cve":{"id":"CVE-2022-50704","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-12-24T11:15:50.573","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"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 ->pullup callback, or the\nhardware encounters a low probability fault, both of them may cause\nthe ->pullup 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->ops->pullup() return an error, function rndis_close() will be\ncalled, then it will causes a use-after-free problem.\n======================================================================="}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/30e926aa835ac2e6ad05822e4cb75833feb0d99f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/99a58ac42d9b6911834b0224b6782aea0c311346","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/afdc12887f2b2ecf20d065a7d81ad29824155083","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}]}}]}