{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50"
            },
            {
              "fixed": "11775b35ce9f27e73d62188d7d38aa0dc0a219aa"
            },
            {
              "fixed": "c9e0f06a023107694698a7930616aeb460d91816"
            },
            {
              "fixed": "cc56d2b0d77cfeea061e98114992ee687d5eb4dd"
            },
            {
              "fixed": "002f1f99aef7ea631cb687fc17bce64e4963f6aa"
            },
            {
              "fixed": "2f65718b9c1095eef1ae9b374aa0384b1b083f3c"
            },
            {
              "fixed": "46a84efe2dbaddde89073a3c00c694486937c34b"
            },
            {
              "fixed": "4839f4c21f9c577eedef2919ced878a3057c7fc3"
            },
            {
              "fixed": "7f2345f47dd189625f657cd72437179ab4170ee1"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.14.0"
            },
            {
              "fixed": "5.15.220"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.187"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.156"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.108"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.49"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.13"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "7.2.0"
            },
            {
              "fixed": "7.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80832.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qce - fix CCM AAD buffer underallocation\n\nThe AAD buffer allocated in qce_aead_ccm_prepare_buf_assoclen()\ncan be smaller than the length later programmed into the DMA\nscatterlist.\n\nThe allocation size is currently calculated as:\n\n  ALIGN(assoclen, 16) + MAX_CCM_ADATA_HEADER_LEN\n\nwhile the DMA length is set to:\n\n  ALIGN(assoclen + adata_header_len, 16)\n\nSince ALIGN() does not distribute over addition, the allocation\ncan be smaller than the DMA length. For example, when\nassoclen = 32 and adata_header_len = 2:\n\n  allocation = ALIGN(32, 16) + 6 = 38\n  DMA length = ALIGN(32 + 2, 16) = 48\n\nAs a result, the QCE hardware can read beyond the allocated\nbuffer while computing the CBC-MAC over the associated data.\nThe extra bytes are folded into the authentication tag,\nresulting in an incorrect tag and causing CCM self-test\nfailures such as:\n\n  alg: aead: ccm-aes-qce encryption test failed (wrong result)\n  on test vector 8\n\nFix the allocation by adding the maximum possible AAD header\nlength before alignment:\n\n  ALIGN(assoclen + MAX_CCM_ADATA_HEADER_LEN, 16)\n\nThis guarantees that the allocated buffer is large enough\nfor the fully padded AAD data for all supported header sizes.",
  "id": "CVE-2026-80832",
  "modified": "2026-09-06T03:30:16.451488421Z",
  "published": "2026-09-04T15:54:40.017Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/002f1f99aef7ea631cb687fc17bce64e4963f6aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/11775b35ce9f27e73d62188d7d38aa0dc0a219aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f65718b9c1095eef1ae9b374aa0384b1b083f3c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46a84efe2dbaddde89073a3c00c694486937c34b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4839f4c21f9c577eedef2919ced878a3057c7fc3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f2345f47dd189625f657cd72437179ab4170ee1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9e0f06a023107694698a7930616aeb460d91816"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc56d2b0d77cfeea061e98114992ee687d5eb4dd"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80832.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80832"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "crypto: qce - fix CCM AAD buffer underallocation"
}