{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3478c83cf26bbffd026ae6a56bcb1fe544f0834e"
            },
            {
              "fixed": "ab6da97bc310db35d4e4ef5354bc3ff626b0698c"
            },
            {
              "fixed": "5a5314d2387633a272a04d1bd8727f99058e4e68"
            },
            {
              "fixed": "537e065977022aa22f2c2503e8accaf16622e0fd"
            },
            {
              "fixed": "520986722dbf869c122252123fc161c7302eab7d"
            },
            {
              "fixed": "eceafc31ea7b42c984ece10d79d505c0bb6615d5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.3.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.86"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.27"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46094.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix bounds check in check_xattrs() to prevent out-of-bounds access\n\nThe bounds check for the next xattr entry in check_xattrs() uses\n(void *)next \u003e= end, which allows next to point within sizeof(u32)\nbytes of end. On the next loop iteration, IS_LAST_ENTRY() reads 4\nbytes via *(__u32 *)(entry), which can overrun the valid xattr region.\n\nFor example, if next lands at end - 1, the check passes since\nnext \u003c end, but IS_LAST_ENTRY() reads 4 bytes starting at end - 1,\naccessing 3 bytes beyond the valid region.\n\nFix this by changing the check to (void *)next + sizeof(u32) \u003e end,\nensuring there is always enough space for the IS_LAST_ENTRY() read\non the subsequent iteration.",
  "id": "CVE-2026-46094",
  "modified": "2026-07-15T01:48:51.451977994Z",
  "published": "2026-05-27T12:58:45.304Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/520986722dbf869c122252123fc161c7302eab7d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/537e065977022aa22f2c2503e8accaf16622e0fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a5314d2387633a272a04d1bd8727f99058e4e68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab6da97bc310db35d4e4ef5354bc3ff626b0698c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eceafc31ea7b42c984ece10d79d505c0bb6615d5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46094.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46094"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "ext4: fix bounds check in check_xattrs() to prevent out-of-bounds access"
}