{"cve":"CVE-2023-53693","nvd":{"published":"2025-10-22T14:15:43.787","modified":"2026-10-28T19:10:00.193","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: gadget: Fix the memory leak in raw_gadget driver\n\nCurrently, increasing raw_dev->count happens before invoke the\nraw_queue_event(), if the raw_queue_event() return error, invoke\nraw_release() will not trigger the dev_free() to be called.\n\n[  268.905865][ T5067] raw-gadget.0 gadget.0: failed to queue event\n[  268.912053][ T5067] udc dummy_udc.0: failed to start USB Raw Gadget: -12\n[  268.918885][ T5067] raw-gadget.0: probe of gadget.0 failed with error -12\n[  268.925956][ T5067] UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy\n[  268.934657][ T5067] misc raw-gadget: fail, usb_gadget_register_driver returned -16\n\nBUG: memory leak\n\n[<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076\n[<ffffffff8347eb55>] kmalloc include/linux/slab.h:582 [inline]\n[<ffffffff8347eb55>] kzalloc include/linux/slab.h:703 [inline]\n[<ffffffff8347eb55>] dev_new drivers/usb/gadget/legacy/raw_gadget.c:191 [inline]\n[<ffffffff8347eb55>] raw_open+0x45/0x110 drivers/usb/gadget/legacy/raw_gadget.c:385\n[<ffffffff827d1d09>] misc_open+0x1a9/0x1f0 drivers/char/misc.c:165\n\n[<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076\n[<ffffffff8347cd2f>] kmalloc include/linux/slab.h:582 [inline]\n[<ffffffff8347cd2f>] raw_ioctl_init+0xdf/0x410 drivers/usb/gadget/legacy/raw_gadget.c:460\n[<ffffffff8347dfe9>] raw_ioctl+0x5f9/0x1120 drivers/usb/gadget/legacy/raw_gadget.c:1250\n[<ffffffff81685173>] vfs_ioctl fs/ioctl.c:51 [inline]\n\n[<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076\n[<ffffffff833ecc6a>] kmalloc include/linux/slab.h:582 [inline]\n[<ffffffff833ecc6a>] kzalloc include/linux/slab.h:703 [inline]\n[<ffffffff833ecc6a>] dummy_alloc_request+0x5a/0xe0 drivers/usb/gadget/udc/dummy_hcd.c:665\n[<ffffffff833e9132>] usb_ep_alloc_request+0x22/0xd0 drivers/usb/gadget/udc/core.c:196\n[<ffffffff8347f13d>] gadget_bind+0x6d/0x370 drivers/usb/gadget/legacy/raw_gadget.c:292\n\nThis commit therefore invoke kref_get() under the condition that\nraw_queue_event() return success.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0f7a2b567197798da7bfa2252f4485c0ca6c6266","https://git.kernel.org/stable/c/68e6287ac61dc22513cd39f02b9ac1fef28513e4","https://git.kernel.org/stable/c/83e30f2bf86ef7c38fbd476ed81a88522b620628","https://git.kernel.org/stable/c/9934e5d07c0dc294169a7d52f6309f35cd6d7755","https://git.kernel.org/stable/c/de77000c1923d7942f9b4f08447c8feeae1c0f33"],"products":[],"source":"nvd","synced_at":"2026-10-28T19:37:43.506563291+00:00"},"epss":{"cve":"CVE-2023-53693","score":0.00214,"percentile":0.11696,"date":"2026-10-28"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}