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fat: fix uninitialized field in nostale filehandles

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: fat: fix uninitialized field in nostale filehandles When fat_encode_fh_nostale() encodes file handle without a parent it stores only first 10 bytes of the file handle. However the length of the file handle must be a multiple of 4 so the file handle is actually 12 bytes long and the last two bytes remain uninitialized. This is not great at we potentially leak uninitialized information with the handle to userspace. Properly initialize the full handle length.

Announced Group revision 1
Original source ↗

CVE-2024-26973

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-26973

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "9840d1897e28f8733cc1e38f97e044f987dc0a63",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "f52d7663a10a1266a2d3871a6dd8fd111edc549f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "a276c595c3a629170b0f052a3724f755d7c6adc6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "b7fb63e807c6dadf7ecc1d43448c4f1711d7eeee",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "c8cc05de8e6b5612b6e9f92c385c1a064b0db375",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "03a7e3f2ba3ca25f1da1d3898709a08db14c1abb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "74f852654b8b7866f15323685f1e178d3386c688",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "cdd33d54e789d229d6d5007cbf3f53965ca1a5c6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2",
        "lessThan": "fde2497d2bc3a063d8af88b258dbadc86bd7b57c",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/fat/nfs.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.312",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.274",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.215",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.154",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.84",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.24",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.7.12",
        "versionType": "semver",
        "lessThanOrEqual": "6.7.*"
      },
      {
        "status": "unaffected",
        "version": "6.8.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.8.*"
      },
      {
        "status": "unaffected",
        "version": "6.9",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/fat/nfs.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-26973

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26471 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2024-26973 · Revision 1Source updated