CVE-2023-52494 (GCVE-0-2023-52494)

Vulnerability from cvelistv5 – Published: 2024-02-29 15:52 – Updated: 2026-05-23 15:25
VLAI
Title
bus: mhi: host: Add alignment check for event ring read pointer
Summary
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Add alignment check for event ring read pointer Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption. So add a alignment check for event ring read pointer.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ec32332df7645e0ba463a08d483fe97665167071 , < 94991728c84f8df54fd9eec9b85855ef9057ea08 (git)
Affected: ec32332df7645e0ba463a08d483fe97665167071 , < 2df39ac8f813860f79782807c3f7acff40b3c551 (git)
Affected: ec32332df7645e0ba463a08d483fe97665167071 , < a9ebfc405fe1be145f414eafadcbf09506082010 (git)
Affected: ec32332df7645e0ba463a08d483fe97665167071 , < ecf8320111822a1ae5d5fc512953eab46d543d0b (git)
Affected: ec32332df7645e0ba463a08d483fe97665167071 , < eff9704f5332a13b08fbdbe0f84059c9e7051d5f (git)
Affected: a1d2bd164c1c78f87968b7883964175ec41c32ae (git)
Affected: fd5f40fc887485a8b9a6806a640a0d8e0ef1afb6 (git)
Affected: 76879a980cd5ede4cb9a638999fb80d37bc09db5 (git)
Affected: 5.10.36 , < 5.11 (semver)
Affected: 5.11.20 , < 5.12 (semver)
Affected: 5.12.3 , < 5.13 (semver)
Create a notification for this product.
Linux Linux Affected: 5.13
Unaffected: 0 , < 5.13 (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.76 , ≤ 6.1.* (semver)
Unaffected: 6.6.15 , ≤ 6.6.* (semver)
Unaffected: 6.7.3 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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Por lo tanto, agregue una verificaci\u00f3n de alineaci\u00f3n para el puntero de lectura del anillo de 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T11:51:29+00:00",
      "cve": "CVE-2023-52494",
      "id": "CVE-2023-52494",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bus: mhi: host: Add alignment check for event ring read pointer",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52494.json",
      "version": "3"
    },
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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

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.