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CVE-2024-27000 (GCVE-0-2024-27000)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:28 – Updated: 2026-05-11 20:08
VLAI
Title
serial: mxs-auart: add spinlock around changing cts state
Summary
In the Linux kernel, the following vulnerability has been resolved: serial: mxs-auart: add spinlock around changing cts state The uart_handle_cts_change() function in serial_core expects the caller to hold uport->lock. For example, I have seen the below kernel splat, when the Bluetooth driver is loaded on an i.MX28 board. [ 85.119255] ------------[ cut here ]------------ [ 85.124413] WARNING: CPU: 0 PID: 27 at /drivers/tty/serial/serial_core.c:3453 uart_handle_cts_change+0xb4/0xec [ 85.134694] Modules linked in: hci_uart bluetooth ecdh_generic ecc wlcore_sdio configfs [ 85.143314] CPU: 0 PID: 27 Comm: kworker/u3:0 Not tainted 6.6.3-00021-gd62a2f068f92 #1 [ 85.151396] Hardware name: Freescale MXS (Device Tree) [ 85.156679] Workqueue: hci0 hci_power_on [bluetooth] (...) [ 85.191765] uart_handle_cts_change from mxs_auart_irq_handle+0x380/0x3f4 [ 85.198787] mxs_auart_irq_handle from __handle_irq_event_percpu+0x88/0x210 (...)
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-28 17:46 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 56434e295bd446142025913bfdf1587f5e1970ad (git)
Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 21535ef0ac1945080198fe3e4347ea498205c99a (git)
Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 0dc0637e6b16158af85945425821bfd0151adb37 (git)
Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 479244d68f5d94f3903eced52b093c1e01ddb495 (git)
Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 2c9b943e9924cf1269e44289bc5e60e51b0f5270 (git)
Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37 (git)
Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 94b0e65c75f4af888ab2dd6c90f060f762924e86 (git)
Affected: 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 , < 54c4ec5f8c471b7c1137a1f769648549c423c026 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 4.19.313 , ≤ 4.19.* (semver)
Unaffected: 5.4.275 , ≤ 5.4.* (semver)
Unaffected: 5.10.216 , ≤ 5.10.* (semver)
Unaffected: 5.15.158 , ≤ 5.15.* (semver)
Unaffected: 6.1.88 , ≤ 6.1.* (semver)
Unaffected: 6.6.29 , ≤ 6.6.* (semver)
Unaffected: 6.8.8 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.216",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.158",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.88",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.29",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8.8",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.9",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: mxs-auart: add spinlock around changing cts state\n\nThe uart_handle_cts_change() function in serial_core expects the caller\nto hold uport-\u003elock. For example, I have seen the below kernel splat,\nwhen the Bluetooth driver is loaded on an i.MX28 board.\n\n    [   85.119255] ------------[ cut here ]------------\n    [   85.124413] WARNING: CPU: 0 PID: 27 at /drivers/tty/serial/serial_core.c:3453 uart_handle_cts_change+0xb4/0xec\n    [   85.134694] Modules linked in: hci_uart bluetooth ecdh_generic ecc wlcore_sdio configfs\n    [   85.143314] CPU: 0 PID: 27 Comm: kworker/u3:0 Not tainted 6.6.3-00021-gd62a2f068f92 #1\n    [   85.151396] Hardware name: Freescale MXS (Device Tree)\n    [   85.156679] Workqueue: hci0 hci_power_on [bluetooth]\n    (...)\n    [   85.191765]  uart_handle_cts_change from mxs_auart_irq_handle+0x380/0x3f4\n    [   85.198787]  mxs_auart_irq_handle from __handle_irq_event_percpu+0x88/0x210\n    (...)"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T09:01:51.767Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/56434e295bd446142025913bfdf1587f5e1970ad"
            },
            {
              "url": "https://git.kernel.org/stable/c/21535ef0ac1945080198fe3e4347ea498205c99a"
            },
            {
              "url": "https://git.kernel.org/stable/c/0dc0637e6b16158af85945425821bfd0151adb37"
            },
            {
              "url": "https://git.kernel.org/stable/c/479244d68f5d94f3903eced52b093c1e01ddb495"
            },
            {
              "url": "https://git.kernel.org/stable/c/2c9b943e9924cf1269e44289bc5e60e51b0f5270"
            },
            {
              "url": "https://git.kernel.org/stable/c/5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37"
            },
            {
              "url": "https://git.kernel.org/stable/c/94b0e65c75f4af888ab2dd6c90f060f762924e86"
            },
            {
              "url": "https://git.kernel.org/stable/c/54c4ec5f8c471b7c1137a1f769648549c423c026"
            }
          ],
          "title": "serial: mxs-auart: add spinlock around changing cts state",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-27000",
        "datePublished": "2024-05-01T05:28:35.749Z",
        "dateReserved": "2024-02-19T14:20:24.207Z",
        "dateUpdated": "2025-11-04T17:16:13.339Z",
        "state": "PUBLISHED"
      },
      "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.