CVE-2022-50034

{"id": "CVE-2022-50034", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2025-06-18T11:15:31.790", "references": [{"url": "https://git.kernel.org/stable/c/6d7ac60098b206d0472475b666cb09d556bec03d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6fd50446e7c9a98b4bcf96815f5c9602a16ea472", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7d602f30149a117eea260208b1661bc404c21dfd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e65d9b7147d7be3504893ca7dfb85286bda83d40", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3 fix use-after-free at workaround 2\n\nBUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac\n\ncdns3_wa2_remove_old_request()\n{\n\t...\n\tkfree(priv_req->request.buf);\n\tcdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request);\n\tlist_del_init(&priv_req->list);\n\t^^^ use after free\n\t...\n}\n\ncdns3_gadget_ep_free_request() free the space pointed by priv_req,\nbut priv_req is used in the following list_del_init().\n\nThis patch move list_del_init() before cdns3_gadget_ep_free_request()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: cdns3 corrige el Use-After-Free en la soluci\u00f3n alternativa 2 ERROR: KFENCE: Use-After-Free en __list_del_entry_valid+0x10/0xac cdns3_wa2_remove_old_request() { ... kfree(priv_req->request.buf); cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ^^^ Use-After-Free ... } cdns3_gadget_ep_free_request() libera el espacio apuntado por priv_req, pero priv_req se usa en el siguiente list_del_init(). Este parche mueve list_del_init() antes de cdns3_gadget_ep_free_request()."}], "lastModified": "2025-11-13T18:42:35.117", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DABFD37F-7E0C-41E0-9811-29A4EF9C11FB", "versionEndExcluding": "5.4.211", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "445ACC04-A2BA-4176-B4C9-CA4AA59096D2", "versionEndExcluding": "5.10.138", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D5744A03-DA40-4A78-9063-13179361DC6D", "versionEndExcluding": "5.15.63", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0E669300-DA42-4ACD-86D8-68BE5F29FB88", "versionEndExcluding": "5.19.4", "versionStartIncluding": "5.16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}