{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c"
            },
            {
              "fixed": "9fff54929cc00849d738faa99f06c32399aeb026"
            },
            {
              "fixed": "b746f949c2ac2b041102836095d6d4a2ef21fa75"
            },
            {
              "fixed": "c1dbf52d24a8cb1aa56780ba51b72e7d495f258c"
            },
            {
              "fixed": "6fc874fdfb366bfb11c62e6af9a831c8be59ddda"
            },
            {
              "fixed": "42f3d2c8c18b92ea33e506a38b64f1a8986c2823"
            },
            {
              "fixed": "4b87a2497276a72fd63028e7419abf0fb7ed837b"
            },
            {
              "fixed": "b732db02a2b04cde393638df19de6251ce62a74e"
            },
            {
              "fixed": "d881d60223aac8fdc12b227d89c76e131e92a9cd"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.11.0"
            },
            {
              "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/2026/74xxx/CVE-2026-74297.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix undefined shift of user RQ WQE size\n\nset_rq_size() computes the RQ WQE size as \"1 \u003c\u003c rq_wqe_shift\" based on\nthe user-provided rq_wqe_shift, which is only checked to be greater than\n32, so shifts of 32 are still accepted. A shift of 31 also overflows a\nsigned integer, leading to undefined behavior.\n\nUse check_shl_overflow() to compute the RQ WQE size and reject any\ninvalid values.",
  "id": "CVE-2026-74297",
  "modified": "2026-08-18T03:31:09.661642613Z",
  "published": "2026-08-15T05:58:01.414Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42f3d2c8c18b92ea33e506a38b64f1a8986c2823"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b87a2497276a72fd63028e7419abf0fb7ed837b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fc874fdfb366bfb11c62e6af9a831c8be59ddda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fff54929cc00849d738faa99f06c32399aeb026"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b732db02a2b04cde393638df19de6251ce62a74e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b746f949c2ac2b041102836095d6d4a2ef21fa75"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c1dbf52d24a8cb1aa56780ba51b72e7d495f258c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d881d60223aac8fdc12b227d89c76e131e92a9cd"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74297.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74297"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "RDMA/mlx5: Fix undefined shift of user RQ WQE size"
}