CVE-2022-49493 (GCVE-0-2022-49493)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2026-05-11 19:00
VLAI
Title
ASoC: rt5645: Fix errorenous cleanup order
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: rt5645: Fix errorenous cleanup order There is a logic error when removing rt5645 device as the function rt5645_i2c_remove() first cancel the &rt5645->jack_detect_work and delete the &rt5645->btn_check_timer latter. However, since the timer handler rt5645_btn_check_callback() will re-queue the jack_detect_work, this cleanup order is buggy. That is, once the del_timer_sync in rt5645_i2c_remove is concurrently run with the rt5645_btn_check_callback, the canceled jack_detect_work will be rescheduled again, leading to possible use-after-free. This patch fix the issue by placing the del_timer_sync function before the cancel_delayed_work_sync.
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: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 18:15 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < 236d29c5857f02e0a53fdf15d3dce1536c4322ce (git)
Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < 0941150100173d4eaf3fe08ff4b16740e7c3026f (git)
Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < abe7554da62cb489712a54de69ef5665c250e564 (git)
Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < 1a5a3dfd9f172dcb115072f0aea5e27d3083c20e (git)
Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < 061a6159cea583f1155f67d1915917a6b9282662 (git)
Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < 88c09e4812d72c3153afc8e5a45ecac2d0eae3ff (git)
Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < 453f0920ffc1a28e28ddb9c3cd5562472b2895b0 (git)
Affected: a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 , < 2def44d3aec59e38d2701c568d65540783f90f2f (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: rt5645: Se corrige el orden de depuraci\u00f3n err\u00f3neo Hay un error l\u00f3gico al eliminar el dispositivo rt5645, ya que la funci\u00f3n rt5645_i2c_remove() primero cancela \u0026amp;rt5645-\u0026gt;jack_detect_work y elimina \u0026amp;rt5645-\u0026gt;btn_check_timer despu\u00e9s. Sin embargo, dado que el controlador del temporizador rt5645_btn_check_callback() volver\u00e1 a poner en cola jack_detect_work, este orden de limpieza tiene errores. Es decir, una vez que del_timer_sync en rt5645_i2c_remove se ejecuta simult\u00e1neamente con rt5645_btn_check_callback, el jack_detect_work cancelado se reprogramar\u00e1 nuevamente, lo que provocar\u00e1 un posible use-after-free. Este parche soluciona el problema colocando la funci\u00f3n del_timer_sync antes de cancel_delayed_work_sync."
          }
        ],
        "id": "CVE-2022-49493",
        "lastModified": "2026-06-17T05:18:13.600",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
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            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-05T09:55:46+00:00",
      "cve": "CVE-2022-49493",
      "id": "CVE-2022-49493",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "185",
      "product_status:known_not_affected": "15",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ASoC: rt5645: Fix errorenous cleanup order",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49493.json",
      "version": "3"
    },
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                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
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              {
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                  "content": {
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
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        ],
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: rt5645: Fix errorenous cleanup order\n\nThere is a logic error when removing rt5645 device as the function\nrt5645_i2c_remove() first cancel the \u0026rt5645-\u003ejack_detect_work and\ndelete the \u0026rt5645-\u003ebtn_check_timer latter. However, since the timer\nhandler rt5645_btn_check_callback() will re-queue the jack_detect_work,\nthis cleanup order is buggy.\n\nThat is, once the del_timer_sync in rt5645_i2c_remove is concurrently\nrun with the rt5645_btn_check_callback, the canceled jack_detect_work\nwill be rescheduled again, leading to possible use-after-free.\n\nThis patch fix the issue by placing the del_timer_sync function before\nthe cancel_delayed_work_sync."
            }
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        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49493",
        "datePublished": "2025-02-26T02:13:29.518Z",
        "dateReserved": "2025-02-26T02:08:31.585Z",
        "dateUpdated": "2026-05-11T19:00:58.111Z",
        "state": "PUBLISHED"
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  }
}



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