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CVE-2024-50210 (GCVE-0-2024-50210)

Vulnerability from cvelistv5 – Published: 2024-11-08 06:08 – Updated: 2026-05-12 12:00
VLAI
Title
posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
Summary
In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the "ts" is not changed after that. [pabeni@redhat.com: fixed commit message typo]
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:17 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 29f085345cde24566efb751f39e5d367c381c584 , < d005400262ddaf1ca1666bbcd1acf42fe81d57ce (git)
Affected: e0c966bd3e31911b57ef76cec4c5796ebd88e512 , < a8219446b95a859488feaade674d13f9efacfa32 (git)
Affected: 673a1c5a2998acbd429d6286e6cad10f17f4f073 , < c7fcfdba35abc9f39b83080c2bce398dad13a943 (git)
Affected: c8789fbe2bbf75845e45302cba6ffa44e1884d01 , < e56e0ec1b79f5a6272c6e78b36e9d593aa0449af (git)
Affected: 27abbde44b6e71ee3891de13e1a228aa7ce95bfe , < 5f063bbf1ee6b01611c016b54e050a41506eb794 (git)
Affected: a3f169e398215e71361774d13bf91a0101283ac2 , < 1ba33b327c3f88a7baee598979d73ab5b44d41cc (git)
Affected: 1ff7247101af723731ea42ed565d54fb8f341264 , < b27330128eca25179637c1816d5a72d6cc408c66 (git)
Affected: d8794ac20a299b647ba9958f6d657051fc51a540 , < 6e62807c7fbb3c758d233018caf94dfea9c65dbd (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10.228 , < 5.10.229 (semver)
Affected: 5.15.169 , < 5.15.170 (semver)
Affected: 6.1.114 , < 6.1.115 (semver)
Affected: 6.6.58 , < 6.6.59 (semver)
Affected: 6.11.5 , < 6.11.6 (semver)
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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Check timespec64_valid_strict() before\\nget_clock_desc() to fix it, because the \\\"ts\\\" is not changed\\nafter that.\\n\\n[pabeni@redhat.com: fixed commit message typo]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: posix-clock: posix-clock: Corregir bloqueo desequilibrado en pc_clock_settime() Si get_clock_desc() tiene \u00e9xito, llama a fget() para el fd del clockid y obtiene el bloqueo de lectura clk-\u0026gt;rwsem, por lo que la ruta de error deber\u00eda liberar el bloqueo para equilibrar el bloqueo y fput el fd del clockid para equilibrar el refcount y liberar el recurso relacionado con el fd. Sin embargo, la siguiente confirmaci\u00f3n dej\u00f3 la ruta de error bloqueada, lo que result\u00f3 en un bloqueo desequilibrado. Verifique timespec64_valid_strict() antes de get_clock_desc() para corregirlo, porque el \\\"ts\\\" no se cambia despu\u00e9s de eso. 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:20:44+00:00",
      "cve": "CVE-2024-50210",
      "id": "CVE-2024-50210",
      "initial_release_date": "2024-11-08T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-50210.json",
      "version": "3"
    },
    "vulnrichment": {
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\"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.15.169\", \"lessThan\": \"5.15.170\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.1.114\", \"lessThan\": \"6.1.115\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.6.58\", \"lessThan\": \"6.6.59\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.11.5\", \"lessThan\": \"6.11.6\", \"versionType\": \"semver\"}], \"programFiles\": [\"kernel/time/posix-clock.c\"], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d005400262ddaf1ca1666bbcd1acf42fe81d57ce\"}, {\"url\": \"https://git.kernel.org/stable/c/a8219446b95a859488feaade674d13f9efacfa32\"}, {\"url\": \"https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943\"}, {\"url\": \"https://git.kernel.org/stable/c/e56e0ec1b79f5a6272c6e78b36e9d593aa0449af\"}, {\"url\": \"https://git.kernel.org/stable/c/5f063bbf1ee6b01611c016b54e050a41506eb794\"}, {\"url\": \"https://git.kernel.org/stable/c/1ba33b327c3f88a7baee598979d73ab5b44d41cc\"}, {\"url\": \"https://git.kernel.org/stable/c/b27330128eca25179637c1816d5a72d6cc408c66\"}, {\"url\": \"https://git.kernel.org/stable/c/6e62807c7fbb3c758d233018caf94dfea9c65dbd\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nposix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()\\n\\nIf get_clock_desc() succeeds, it calls fget() for the clockid\u0027s fd,\\nand get the clk-\u003erwsem read lock, so the error path should release\\nthe lock to make the lock balance and fput the clockid\u0027s fd to make\\nthe refcount balance and release the fd related resource.\\n\\nHowever the below commit left the error path locked behind resulting in\\nunbalanced locking. Check timespec64_valid_strict() before\\nget_clock_desc() to fix it, because the \\\"ts\\\" is not changed\\nafter that.\\n\\n[pabeni@redhat.com: fixed commit message typo]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.229\", \"versionStartIncluding\": \"5.10.228\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.170\", \"versionStartIncluding\": \"5.15.169\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.115\", \"versionStartIncluding\": \"6.1.114\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.59\", \"versionStartIncluding\": \"6.6.58\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.6\", \"versionStartIncluding\": \"6.11.5\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:47:33.314Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50210\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T12:00:28.952Z\", \"dateReserved\": \"2024-10-21T19:36:19.970Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-08T06:08:00.319Z\", \"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.