CVE-2024-40902 (GCVE-0-2024-40902)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:20 – Updated: 2026-08-05 11:33
VLAI
Title
jfs: xattr: fix buffer overflow for invalid xattr
Summary
In the Linux kernel, the following vulnerability has been resolved: jfs: xattr: fix buffer overflow for invalid xattr When an xattr size is not what is expected, it is printed out to the kernel log in hex format as a form of debugging. But when that xattr size is bigger than the expected size, printing it out can cause an access off the end of the buffer. Fix this all up by properly restricting the size of the debug hex dump in the kernel log.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f0dedb5c511ed82cbaff4997a8decf2351ba549f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1e84c9b1838152a87cf453270a5fa75c5037e83a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fc745f6e83cb650f9a5f2c864158e3a5ea76dad0 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 480e5bc21f2c42d90c2c16045d64d824dcdd5ec7 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 33aecc5799c93d3ee02f853cb94e201f9731f123 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4598233d9748fe4db4e13b9f473588aa25e87d69 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b537cb2f4c4a1357479716a9c339c0bda03d873f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7c55b78818cfb732680c4a72ab270cc2d2ee3d0f (git)
Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.19.317 , ≤ 4.19.* (semver)
Unaffected: 5.4.279 , ≤ 5.4.* (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.95 , ≤ 6.1.* (semver)
Unaffected: 6.6.35 , ≤ 6.6.* (semver)
Unaffected: 6.9.6 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
linux linux_kernel Affected: 1da177e4c3f4 , < f0dedb5c511e (git)
Affected: 1da177e4c3f4 , < 1e84c9b18381 (git)
Affected: 1da177e4c3f4 , < fc745f6e83cb (git)
Affected: 1da177e4c3f4 , < 480e5bc21f2c (git)
Affected: 1da177e4c3f4 , < 33aecc5799c9 (git)
Affected: 1da177e4c3f4 , < 4598233d9748 (git)
Affected: 1da177e4c3f4 , < b537cb2f4c4a (git)
Affected: 1da177e4c3f4 , < 7c55b78818cf (git)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
 Create a notification for this product.
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\njfs: xattr: fix buffer overflow for invalid xattr\\n\\nWhen an xattr size is not what is expected, it is printed out to the\\nkernel log in hex format as a form of debugging.  But when that xattr\\nsize is bigger than the expected size, printing it out can cause an\\naccess off the end of the buffer.\\n\\nFix this all up by properly restricting the size of the debug hex dump\\nin the kernel log.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: jfs: xattr: corrige el desbordamiento del b\\u00fafer para xattr no v\\u00e1lido Cuando un tama\\u00f1o de xattr no es el esperado, se imprime en el registro del kernel en formato hexadecimal como una forma de depuraci\\u00f3n. Pero cuando el tama\\u00f1o de xattr es mayor que el tama\\u00f1o esperado, imprimirlo puede provocar un acceso desde el final del b\\u00fafer. Solucione todo esto restringiendo adecuadamente el tama\\u00f1o del volcado hexadecimal de depuraci\\u00f3n en el registro del kernel.\"}]",
      "id": "CVE-2024-40902",
      "lastModified": "2024-11-21T09:31:49.273",
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      "published": "2024-07-12T13:15:13.583",
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    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T02:44:20.000Z",
      "cve": "CVE-2024-40902",
      "id": "msrc_CVE-2024-40902",
      "initial_release_date": "2024-07-01T07:00:00.000Z",
      "product_status:fixed": "5",
      "product_status:known_affected": "5",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "jfs: xattr: fix buffer overflow for invalid xattr",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-40902.json",
      "version": "13"
    },
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But when that xattr\\nsize is bigger than the expected size, printing it out can cause an\\naccess off the end of the buffer.\\n\\nFix this all up by properly restricting the size of the debug hex dump\\nin the kernel log.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: jfs: xattr: corrige el desbordamiento del b\u00fafer para xattr no v\u00e1lido Cuando un tama\u00f1o de xattr no es el esperado, se imprime en el registro del kernel en formato hexadecimal como una forma de depuraci\u00f3n. Pero cuando el tama\u00f1o de xattr es mayor que el tama\u00f1o esperado, imprimirlo puede provocar un acceso desde el final del b\u00fafer. 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\"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.95\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.35\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/jfs/xattr.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f0dedb5c511ed82cbaff4997a8decf2351ba549f\"}, {\"url\": \"https://git.kernel.org/stable/c/1e84c9b1838152a87cf453270a5fa75c5037e83a\"}, {\"url\": \"https://git.kernel.org/stable/c/fc745f6e83cb650f9a5f2c864158e3a5ea76dad0\"}, {\"url\": \"https://git.kernel.org/stable/c/480e5bc21f2c42d90c2c16045d64d824dcdd5ec7\"}, {\"url\": 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But when that xattr\\nsize is bigger than the expected size, printing it out can cause an\\naccess off the end of the buffer.\\n\\nFix this all up by properly restricting the size of the debug hex dump\\nin the kernel log.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.317\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.279\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.221\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.162\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.95\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.35\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.6\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"2.6.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:36:49.134Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-40902\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:36:49.134Z\", \"dateReserved\": \"2024-07-12T12:17:45.579Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-12T12:20:43.508Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.