CVE-2022-49743 (GCVE-0-2022-49743)
Vulnerability from cvelistv5
Published
2025-03-27 16:42
Modified
2025-05-04 08:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ovl: Use "buf" flexible array for memcpy() destination The "buf" flexible array needs to be the memcpy() destination to avoid false positive run-time warning from the recent FORTIFY_SOURCE hardening: memcpy: detected field-spanning write (size 93) of single field "&fh->fb" at fs/overlayfs/export.c:799 (size 21)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07a96977b2f462337a9121302de64277b8747ab1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a77141a06367825d639ac51b04703d551163e36c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/overlayfs/export.c",
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\novl: Use \"buf\" flexible array for memcpy() destination\n\nThe \"buf\" flexible array needs to be the memcpy() destination to avoid\nfalse positive run-time warning from the recent FORTIFY_SOURCE\nhardening:\n\n  memcpy: detected field-spanning write (size 93) of single field \"\u0026fh-\u003efb\"\n  at fs/overlayfs/export.c:799 (size 21)"
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:44:26.260Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
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      "title": "ovl: Use \"buf\" flexible array for memcpy() destination",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49743",
    "datePublished": "2025-03-27T16:42:54.289Z",
    "dateReserved": "2025-03-27T16:39:17.987Z",
    "dateUpdated": "2025-05-04T08:44:26.260Z",
    "state": "PUBLISHED"
  },
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  }
}


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