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CVE-2024-49900 (GCVE-0-2024-49900)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-12 11:58
VLAI
Title
jfs: Fix uninit-value access of new_ea in ea_buffer
Summary
In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of new_ea in ea_buffer syzbot reports that lzo1x_1_do_compress is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178 ... Uninit was stored to memory at: ea_put fs/jfs/xattr.c:639 [inline] ... Local variable ea_buf created at: __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662 __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934 ===================================================== The reason is ea_buf->new_ea is not initialized properly. Fix this by using memset to empty its content at the beginning in ea_get().
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:43 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7b24d41d47a6805c45378debf8bd115675d41da8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dac398ed272a378d2f42ac68ae408333a51baf52 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8b1dcf25c26d42e4a68c4725ce52a0543c7878cc (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d7444f91a9f93eaa48827087ed0f3381c194181d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6041536d18c5f51a84bc37cd568cbab61870031e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c076b3746224982eebdba5c9e4b1467e146c0d64 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7c244d5b48284a770d96ff703df2dfeadf804a73 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8ad8b531de79c348bcb8133e7f5e827b884226af (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2b59ffad47db1c46af25ccad157bb3b25147c35c (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.55 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
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      "current_release_date": "2026-02-18T02:34:45.000Z",
      "cve": "CVE-2024-49900",
      "id": "msrc_CVE-2024-49900",
      "initial_release_date": "2024-10-01T07:00:00.000Z",
      "product_status:fixed": "5",
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      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "jfs: Fix uninit-value access of new_ea in ea_buffer",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-49900.json",
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Uninit se almacen\u00f3 en la memoria en: ea_put fs/jfs/xattr.c:639 [en l\u00ednea] ... La variable local ea_buf se cre\u00f3 en: __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662 __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934 ========================================================== El motivo es que ea_buf-\u0026gt;new_ea no se inicializa correctamente. 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      "status": "final",
      "title": "kernel: jfs: Fix uninit-value access of new_ea in ea_buffer",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-49900.json",
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{\"status\": \"unaffected\", \"version\": \"6.6.55\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/jfs/xattr.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/7b24d41d47a6805c45378debf8bd115675d41da8\"}, {\"url\": \"https://git.kernel.org/stable/c/dac398ed272a378d2f42ac68ae408333a51baf52\"}, {\"url\": \"https://git.kernel.org/stable/c/8b1dcf25c26d42e4a68c4725ce52a0543c7878cc\"}, {\"url\": \"https://git.kernel.org/stable/c/d7444f91a9f93eaa48827087ed0f3381c194181d\"}, {\"url\": \"https://git.kernel.org/stable/c/6041536d18c5f51a84bc37cd568cbab61870031e\"}, {\"url\": \"https://git.kernel.org/stable/c/c076b3746224982eebdba5c9e4b1467e146c0d64\"}, {\"url\": \"https://git.kernel.org/stable/c/7c244d5b48284a770d96ff703df2dfeadf804a73\"}, {\"url\": \"https://git.kernel.org/stable/c/8ad8b531de79c348bcb8133e7f5e827b884226af\"}, {\"url\": \"https://git.kernel.org/stable/c/2b59ffad47db1c46af25ccad157bb3b25147c35c\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\njfs: Fix uninit-value access of new_ea in ea_buffer\\n\\nsyzbot reports that lzo1x_1_do_compress is using uninit-value:\\n\\n=====================================================\\nBUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178\\n\\n...\\n\\nUninit was stored to memory at:\\n ea_put fs/jfs/xattr.c:639 [inline]\\n\\n...\\n\\nLocal variable ea_buf created at:\\n __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662\\n __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934\\n\\n=====================================================\\n\\nThe reason is ea_buf-\u003enew_ea is not initialized properly.\\n\\nFix this by using memset to empty its content at the beginning\\nin ea_get().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.323\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.113\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.55\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.14\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.3\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"2.6.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:41:26.722Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49900\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T11:58:58.567Z\", \"dateReserved\": \"2024-10-21T12:17:06.026Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:01:32.607Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.