{
  "affected": [
    {
      "ranges": [
        {
          "events": [
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              "introduced": "0e9280654aa482088ee6ef3deadef331f5ac5fb0"
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              "fixed": "e62268e695075a481a6c4feeb022c19cf57422a6"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
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              "fixed": "f1471aa76d74e0df3b2a90731ca0208f498c670b"
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              "fixed": "68b41e68a62299f26cb16af422b5c7d1c69dafd9"
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              "fixed": "d1d53aa30ab3b5ae89161c9cc840b3f7489ad386"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
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              "last_affected": "0b27bdf02c400684225ee5ee99970bcbf5082282"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
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            },
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
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        {
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            },
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              "fixed": "4.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
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            },
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            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
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            },
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            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
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      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
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          ],
          "type": "ECOSYSTEM"
        },
        {
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              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.14.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72428.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix stack slot index in nospec checks\n\ncheck_stack_write_fixed_off() computes the byte slot for a fixed-offset\nstack write as -off - 1, and records each written byte in slot_type[] with\n(slot - i) % BPF_REG_SIZE.\n\nThe Spectre v4 sanitization pre-check uses slot_type[i] instead. For a\n4-byte write at fp-8 after the lower half of fp-8 has been zeroed, the\npre-check scans bytes 0..3 and sees STACK_ZERO while the actual write updates\nbytes 7..4. That can leave the second half-slot write without nospec_result\neven though the bytes being overwritten still require sanitization.\n\nUse the same slot index in the sanitization pre-check that the write path uses\nwhen updating slot_type[].",
  "id": "CVE-2026-72428",
  "modified": "2026-08-18T03:31:18.240340028Z",
  "published": "2026-08-15T05:56:44.831Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/475405593de2b796224c6297aece44f321195919"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68b41e68a62299f26cb16af422b5c7d1c69dafd9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a71eb8f730a91271cf47ce291e785b6b7e54622f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca119656baa8f48a56e0c2f3ab63fdd33ca9e307"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1d53aa30ab3b5ae89161c9cc840b3f7489ad386"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db8f1dcf5950b91886b9df4270bc816370d292c1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e62268e695075a481a6c4feeb022c19cf57422a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1471aa76d74e0df3b2a90731ca0208f498c670b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72428.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72428"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bpf: Fix stack slot index in nospec checks"
}