CVE-2022-50034 (GCVE-0-2022-50034)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2025-06-19 13:10
VLAI?
Title
usb: cdns3 fix use-after-free at workaround 2
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3 fix use-after-free at workaround 2 BUG: KFENCE: use-after-free read in __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() free the space pointed by priv_req, but priv_req is used in the following list_del_init(). This patch move list_del_init() before cdns3_gadget_ep_free_request().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < e65d9b7147d7be3504893ca7dfb85286bda83d40 (git)
Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < 6d7ac60098b206d0472475b666cb09d556bec03d (git)
Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a (git)
Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < 6fd50446e7c9a98b4bcf96815f5c9602a16ea472 (git)
Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < 7d602f30149a117eea260208b1661bc404c21dfd (git)
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    Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.138 , ≤ 5.10.* (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/cdns3/cdns3-gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e65d9b7147d7be3504893ca7dfb85286bda83d40",
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              "versionType": "git"
            },
            {
              "lessThan": "6d7ac60098b206d0472475b666cb09d556bec03d",
              "status": "affected",
              "version": "8bc1901ca7b07d864fca11461b3875b31f949765",
              "versionType": "git"
            },
            {
              "lessThan": "c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a",
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              "versionType": "git"
            },
            {
              "lessThan": "6fd50446e7c9a98b4bcf96815f5c9602a16ea472",
              "status": "affected",
              "version": "8bc1901ca7b07d864fca11461b3875b31f949765",
              "versionType": "git"
            },
            {
              "lessThan": "7d602f30149a117eea260208b1661bc404c21dfd",
              "status": "affected",
              "version": "8bc1901ca7b07d864fca11461b3875b31f949765",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/cdns3/cdns3-gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.211",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.138",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.211",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.138",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.63",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.4",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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-\u003erequest.buf);\n\tcdns3_gadget_ep_free_request(\u0026priv_ep-\u003eendpoint, \u0026priv_req-\u003erequest);\n\tlist_del_init(\u0026priv_req-\u003elist);\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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-19T13:10:50.978Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e65d9b7147d7be3504893ca7dfb85286bda83d40"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d7ac60098b206d0472475b666cb09d556bec03d"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a"
        },
        {
          "url": "https://git.kernel.org/stable/c/6fd50446e7c9a98b4bcf96815f5c9602a16ea472"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d602f30149a117eea260208b1661bc404c21dfd"
        }
      ],
      "title": "usb: cdns3 fix use-after-free at workaround 2",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50034",
    "datePublished": "2025-06-18T11:01:36.435Z",
    "dateReserved": "2025-06-18T10:57:27.396Z",
    "dateUpdated": "2025-06-19T13:10:50.978Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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