{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "628329d52474323938a03826941e166bc7c8eff4"
            },
            {
              "fixed": "67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28"
            },
            {
              "fixed": "6314bd9e2a6b3362998dc85485dd4b0f133a3532"
            },
            {
              "fixed": "76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32"
            },
            {
              "fixed": "e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295"
            },
            {
              "fixed": "b847f2725ef47a26b3d01eca3d54fd811e5a544d"
            },
            {
              "fixed": "383934c249a9817d242d02d30bfbc8defbf0d533"
            },
            {
              "fixed": "bbbe31486cf2d12177462e4a814244c2597c9849"
            },
            {
              "fixed": "d4579af29e67ca8722db0a1194227f8015c8981d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.10.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80594.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: ims-pcu - fix potential infinite loop in CDC union descriptor parsing\n\nThe driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()\nby iterating through the extra descriptor data. However, it does not\nverify that the bLength of each descriptor is at least 2. A malicious\ndevice could provide a descriptor with bLength = 0, leading to an\ninfinite loop in the driver.\n\nAdd a check to ensure bLength is at least 2 before proceeding with\nparsing.",
  "id": "CVE-2026-80594",
  "modified": "2026-08-30T03:30:49.738493526Z",
  "published": "2026-08-28T06:48:21.426Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80594.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80594"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing"
}