fkie_cve-2022-48705
Vulnerability from fkie_nvd
Published
2024-05-03 18:15
Modified
2025-09-19 14:43
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921e: fix crash in chip reset fail In case of drv own fail in reset, we may need to run mac_reset several times. The sequence would trigger system crash as the log below. Because we do not re-enable/schedule "tx_napi" before disable it again, the process would keep waiting for state change in napi_diable(). To avoid the problem and keep status synchronize for each run, goto final resource handling if drv own failed. [ 5857.353423] mt7921e 0000:3b:00.0: driver own failed [ 5858.433427] mt7921e 0000:3b:00.0: Timeout for driver own [ 5859.633430] mt7921e 0000:3b:00.0: driver own failed [ 5859.633444] ------------[ cut here ]------------ [ 5859.633446] WARNING: CPU: 6 at kernel/kthread.c:659 kthread_park+0x11d [ 5859.633717] Workqueue: mt76 mt7921_mac_reset_work [mt7921_common] [ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150 [ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202 ...... [ 5859.633766] Call Trace: [ 5859.633768] <TASK> [ 5859.633771] mt7921e_mac_reset+0x176/0x6f0 [mt7921e] [ 5859.633778] mt7921_mac_reset_work+0x184/0x3a0 [mt7921_common] [ 5859.633785] ? mt7921_mac_set_timing+0x520/0x520 [mt7921_common] [ 5859.633794] ? __kasan_check_read+0x11/0x20 [ 5859.633802] process_one_work+0x7ee/0x1320 [ 5859.633810] worker_thread+0x53c/0x1240 [ 5859.633818] kthread+0x2b8/0x370 [ 5859.633824] ? process_one_work+0x1320/0x1320 [ 5859.633828] ? kthread_complete_and_exit+0x30/0x30 [ 5859.633834] ret_from_fork+0x1f/0x30 [ 5859.633842] </TASK>
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "785D5A32-3707-4E58-B285-FA6151AFE658",
              "versionEndExcluding": "5.19.9",
              "versionStartIncluding": "5.16.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E",
              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "F8446E87-F5F6-41CA-8201-BAE0F0CA6DD9",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921e: fix crash in chip reset fail\n\nIn case of drv own fail in reset, we may need to run mac_reset several\ntimes. The sequence would trigger system crash as the log below.\n\nBecause we do not re-enable/schedule \"tx_napi\" before disable it again,\nthe process would keep waiting for state change in napi_diable(). To\navoid the problem and keep status synchronize for each run, goto final\nresource handling if drv own failed.\n\n[ 5857.353423] mt7921e 0000:3b:00.0: driver own failed\n[ 5858.433427] mt7921e 0000:3b:00.0: Timeout for driver own\n[ 5859.633430] mt7921e 0000:3b:00.0: driver own failed\n[ 5859.633444] ------------[ cut here ]------------\n[ 5859.633446] WARNING: CPU: 6 at kernel/kthread.c:659 kthread_park+0x11d\n[ 5859.633717] Workqueue: mt76 mt7921_mac_reset_work [mt7921_common]\n[ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150\n[ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202\n......\n[ 5859.633766] Call Trace:\n[ 5859.633768]  \u003cTASK\u003e\n[ 5859.633771]  mt7921e_mac_reset+0x176/0x6f0 [mt7921e]\n[ 5859.633778]  mt7921_mac_reset_work+0x184/0x3a0 [mt7921_common]\n[ 5859.633785]  ? mt7921_mac_set_timing+0x520/0x520 [mt7921_common]\n[ 5859.633794]  ? __kasan_check_read+0x11/0x20\n[ 5859.633802]  process_one_work+0x7ee/0x1320\n[ 5859.633810]  worker_thread+0x53c/0x1240\n[ 5859.633818]  kthread+0x2b8/0x370\n[ 5859.633824]  ? process_one_work+0x1320/0x1320\n[ 5859.633828]  ? kthread_complete_and_exit+0x30/0x30\n[ 5859.633834]  ret_from_fork+0x1f/0x30\n[ 5859.633842]  \u003c/TASK\u003e"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mt76: mt7921e: reparaci\u00f3n del fallo en el reinicio del chip. En caso de que el propio drv falle en el reinicio, es posible que necesitemos ejecutar mac_reset varias veces. La secuencia provocar\u00eda un fallo del sistema como se muestra en el siguiente registro. Debido a que no volvemos a habilitar/programar \"tx_napi\" antes de deshabilitarlo nuevamente, el proceso seguir\u00e1 esperando el cambio de estado en napi_diable(). Para evitar el problema y mantener el estado sincronizado para cada ejecuci\u00f3n, vaya al manejo de recursos finales si el propio drv falla. [ 5857.353423] mt7921e 0000:3b:00.0: el controlador propio fall\u00f3 [ 5858.433427] mt7921e 0000:3b:00.0: Tiempo de espera para el controlador propio [ 5859.633430] mt7921e 0000:3b:00.0: el controlador propio fall\u00f3 [ 5859. 633444] ------- -----[ cortar aqu\u00ed ]------------ [ 5859.633446] ADVERTENCIA: CPU: 6 en kernel/kthread.c:659 kthread_park+0x11d [ 5859.633717] Cola de trabajo: mt76 mt7921_mac_reset_work [mt7921_common] [ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150 [ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202 ...... [ 5859.633766] Seguimiento de llamadas: [ 5859.633768 ]  [ 5859.633771] mt7921e_mac_reset+0x176/0x6f0 [ mt7921e] [5859.633778] mt7921_mac_reset_work+0x184/0x3a0 [mt7921_common] [5859.633785]? mt7921_mac_set_timing+0x520/0x520 [mt7921_common] [5859.633794]? __kasan_check_read+0x11/0x20 [ 5859.633802] proceso_one_work+0x7ee/0x1320 [ 5859.633810] trabajador_thread+0x53c/0x1240 [ 5859.633818] kthread+0x2b8/0x370 [ 5859.633824] ? proceso_one_work+0x1320/0x1320 [5859.633828]? kthread_complete_and_exit+0x30/0x30 [ 5859.633834] ret_from_fork+0x1f/0x30 [ 5859.633842] "
    }
  ],
  "id": "CVE-2022-48705",
  "lastModified": "2025-09-19T14:43:59.973",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-05-03T18:15:08.403",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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