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CVE-2024-36940 (GCVE-0-2024-36940)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2026-08-05 11:32
VLAI
Title
pinctrl: core: delete incorrect free in pinctrl_enable()
Summary
In the Linux kernel, the following vulnerability has been resolved: pinctrl: core: delete incorrect free in pinctrl_enable() The "pctldev" struct is allocated in devm_pinctrl_register_and_init(). It's a devm_ managed pointer that is freed by devm_pinctrl_dev_release(), so freeing it in pinctrl_enable() will lead to a double free. The devm_pinctrl_dev_release() function frees the pindescs and destroys the mutex as well.
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: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-05 14:25 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < 735f4c6b6771eafe336404c157ca683ad72a040d (git)
Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < cdaa171473d98962ae86f2a663d398fda2fbeefd (git)
Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < 288bc4aa75f150d6f1ee82dd43c6da1b438b6068 (git)
Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < 41f88ef8ba387a12f4a2b8c400b6c9e8e54b2cca (git)
Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < ac7d65795827dc0cf7662384ed27caf4066bd72e (git)
Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < 558c8039fdf596a584a92c171cbf3298919c448c (git)
Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < f9f1e321d53e4c5b666b66e5b43da29841fb55ba (git)
Affected: 6118714275f0a313ecc296a87ed1af32d9691bed , < 5038a66dad0199de60e5671603ea6623eb9e5c79 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 4.19.314 , ≤ 4.19.* (semver)
Unaffected: 5.4.276 , ≤ 5.4.* (semver)
Unaffected: 5.10.217 , ≤ 5.10.* (semver)
Unaffected: 5.15.159 , ≤ 5.15.* (semver)
Unaffected: 6.1.91 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (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 Affected: 0 , < V3.1 (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.
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Es un puntero administrado por devm_ que se libera mediante devm_pinctrl_dev_release(), por lo que liberarlo en pinctrl_enable() generar\u00e1 una doble liberaci\u00f3n. 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T22:45:32+00:00",
      "cve": "CVE-2024-36940",
      "id": "CVE-2024-36940",
      "initial_release_date": "2024-05-30T00:00:00+00:00",
      "product_status:fixed": "709",
      "product_status:known_affected": "50",
      "product_status:known_not_affected": "22",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: pinctrl: core: delete incorrect free in pinctrl_enable()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-36940.json",
      "version": "3"
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There is no remote or adjacent protocol handler involved.\\nAC:L - The failing condition in `pinctrl_claim_hogs()` includes `-ENOMEM` from `create_pinctrl()`\u0027s `kzalloc()` and from `pinctrl_dt_to_map()`, which a local attacker can drive via sustained memory pressure timed against a driver probe. Once the free happens the devres release is guaranteed to run on the dangling pointer, so no unwinnable race is required.\\nPR:L - An unprivileged local account suffices to apply the allocation pressure that induces the `pinctrl_claim_hogs()` error path on a system where an affected pinctrl driver probes or re-probes. 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\"6118714275f0a313ecc296a87ed1af32d9691bed\", \"lessThan\": \"288bc4aa75f150d6f1ee82dd43c6da1b438b6068\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6118714275f0a313ecc296a87ed1af32d9691bed\", \"lessThan\": \"41f88ef8ba387a12f4a2b8c400b6c9e8e54b2cca\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6118714275f0a313ecc296a87ed1af32d9691bed\", \"lessThan\": \"ac7d65795827dc0cf7662384ed27caf4066bd72e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6118714275f0a313ecc296a87ed1af32d9691bed\", \"lessThan\": \"558c8039fdf596a584a92c171cbf3298919c448c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6118714275f0a313ecc296a87ed1af32d9691bed\", \"lessThan\": \"f9f1e321d53e4c5b666b66e5b43da29841fb55ba\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6118714275f0a313ecc296a87ed1af32d9691bed\", \"lessThan\": \"5038a66dad0199de60e5671603ea6623eb9e5c79\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/pinctrl/core.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.11\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.11\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.314\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.276\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.217\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.91\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.31\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/pinctrl/core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/735f4c6b6771eafe336404c157ca683ad72a040d\"}, {\"url\": \"https://git.kernel.org/stable/c/cdaa171473d98962ae86f2a663d398fda2fbeefd\"}, {\"url\": \"https://git.kernel.org/stable/c/288bc4aa75f150d6f1ee82dd43c6da1b438b6068\"}, {\"url\": \"https://git.kernel.org/stable/c/41f88ef8ba387a12f4a2b8c400b6c9e8e54b2cca\"}, {\"url\": \"https://git.kernel.org/stable/c/ac7d65795827dc0cf7662384ed27caf4066bd72e\"}, {\"url\": \"https://git.kernel.org/stable/c/558c8039fdf596a584a92c171cbf3298919c448c\"}, {\"url\": \"https://git.kernel.org/stable/c/f9f1e321d53e4c5b666b66e5b43da29841fb55ba\"}, {\"url\": \"https://git.kernel.org/stable/c/5038a66dad0199de60e5671603ea6623eb9e5c79\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\npinctrl: core: delete incorrect free in pinctrl_enable()\\n\\nThe \\\"pctldev\\\" struct is allocated in devm_pinctrl_register_and_init().\\nIt\u0027s a devm_ managed pointer that is freed by devm_pinctrl_dev_release(),\\nso freeing it in pinctrl_enable() will lead to a double free.\\n\\nThe devm_pinctrl_dev_release() function frees the pindescs and destroys\\nthe mutex as well.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.314\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.276\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.217\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.159\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.91\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.31\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.10\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"4.11\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:32:10.428Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-36940\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:32:10.428Z\", \"dateReserved\": \"2024-05-30T15:25:07.072Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-30T15:29:28.101Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.