CVE-2024-42090 (GCVE-0-2024-42090)

Vulnerability from cvelistv5 – Published: 2024-07-29 16:26 – Updated: 2026-05-12 11:56
VLAI
Title
pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER
Summary
In the Linux kernel, the following vulnerability has been resolved: pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER In create_pinctrl(), pinctrl_maps_mutex is acquired before calling add_setting(). If add_setting() returns -EPROBE_DEFER, create_pinctrl() calls pinctrl_free(). However, pinctrl_free() attempts to acquire pinctrl_maps_mutex, which is already held by create_pinctrl(), leading to a potential deadlock. This patch resolves the issue by releasing pinctrl_maps_mutex before calling pinctrl_free(), preventing the deadlock. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < e65a0dc2e85efb28e182aca50218e8a056d0ce04 (git)
Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < 420ce1261907e5dbeda1e4daffd5b6c76f8188c0 (git)
Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < b813e3fd102a959c5b208ed68afe27e0137a561b (git)
Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < 01fe2f885f7813f8aed5d3704b384a97b1116a9e (git)
Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < b36efd2e3e22a329444b6b24fa48df6d20ae66e6 (git)
Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < 4038c57bf61631219b31f1bd6e92106ec7f084dc (git)
Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < 48a7a7c9571c3e62f17012dd7f2063e926179ddd (git)
Affected: 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 , < adec57ff8e66aee632f3dd1f93787c13d112b7a1 (git)
Create a notification for this product.
Linux Linux Affected: 3.10
Unaffected: 0 , < 3.10 (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: 6.1.97 , ≤ 6.1.* (semver)
Unaffected: 6.6.37 , ≤ 6.6.* (semver)
Unaffected: 6.9.8 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Modified",
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However, pinctrl_free() attempts to acquire\\npinctrl_maps_mutex, which is already held by create_pinctrl(), leading to\\na potential deadlock.\\n\\nThis patch resolves the issue by releasing pinctrl_maps_mutex before\\ncalling pinctrl_free(), preventing the deadlock.\\n\\nThis bug was discovered and resolved using Coverity Static Analysis\\nSecurity Testing (SAST) by Synopsys, Inc.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pinctrl: soluciona el punto muerto en create_pinctrl() al manejar -EPROBE_DEFER En create_pinctrl(), pinctrl_maps_mutex se adquiere antes de llamar a add_setting(). Si add_setting() devuelve -EPROBE_DEFER, create_pinctrl() llama a pinctrl_free(). Sin embargo, pinctrl_free() intenta adquirir pinctrl_maps_mutex, que ya est\u00e1 en manos de create_pinctrl(), lo que lleva a un posible punto muerto. Este parche resuelve el problema liberando pinctrl_maps_mutex antes de llamar a pinctrl_free(), evitando el punto muerto. Este error fue descubierto y resuelto utilizando Coverity Static Analysis Security Testing (SAST) por Synopsys, 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      "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

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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.