FKIE_CVE-2024-38664

Vulnerability from fkie_nvd - Published: 2024-06-24 14:15 - Updated: 2026-06-17 07:40
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm: zynqmp_dpsub: Always register bridge We must always register the DRM bridge, since zynqmp_dp_hpd_work_func calls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be initialized. We do this before zynqmp_dpsub_drm_init since that calls drm_bridge_attach. This fixes the following lockdep warning: [ 19.217084] ------------[ cut here ]------------ [ 19.227530] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550 [ 19.241696] Modules linked in: [ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96 [ 19.252046] Hardware name: xlnx,zynqmp (DT) [ 19.256421] Workqueue: events zynqmp_dp_hpd_work_func [ 19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 19.269104] pc : __mutex_lock+0x4bc/0x550 [ 19.273364] lr : __mutex_lock+0x4bc/0x550 [ 19.277592] sp : ffffffc085c5bbe0 [ 19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8 [ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000 [ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000 [ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000 [ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720 [ 19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001 [ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888 [ 19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000 [ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000 [ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880 [ 19.356581] Call trace: [ 19.359160] __mutex_lock+0x4bc/0x550 [ 19.363032] mutex_lock_nested+0x24/0x30 [ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c [ 19.371698] zynqmp_dp_hpd_work_func+0x44/0x54 [ 19.376364] process_one_work+0x3ac/0x988 [ 19.380660] worker_thread+0x398/0x694 [ 19.384736] kthread+0x1bc/0x1c0 [ 19.388241] ret_from_fork+0x10/0x20 [ 19.392031] irq event stamp: 183 [ 19.395450] hardirqs last enabled at (183): [<ffffffc0800b9278>] finish_task_switch.isra.0+0xa8/0x2d4 [ 19.405140] hardirqs last disabled at (182): [<ffffffc081ad3754>] __schedule+0x714/0xd04 [ 19.413612] softirqs last enabled at (114): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c [ 19.423128] softirqs last disabled at (110): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c [ 19.432614] ---[ end trace 0000000000000000 ]--- (cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396baMailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fcMailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396baMailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fcMailing List, Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.10
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xlnx/zynqmp_dpsub.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9",
              "status": "affected",
              "version": "eb2d64bfcc174919a921295a5327b99a3b8f4166",
              "versionType": "git"
            },
            {
              "lessThan": "603661357056b5e5ba6d86f505fbc936eff396ba",
              "status": "affected",
              "version": "eb2d64bfcc174919a921295a5327b99a3b8f4166",
              "versionType": "git"
            },
            {
              "lessThan": "be3f3042391d061cfca2bd22630e0d101acea5fc",
              "status": "affected",
              "version": "eb2d64bfcc174919a921295a5327b99a3b8f4166",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xlnx/zynqmp_dpsub.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FCE796DF-3B50-4DC6-BAE5-95271068FC9E",
              "versionEndExcluding": "6.6.33",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "991B9791-966A-4D18-9E8D-A8AB128E5627",
              "versionEndExcluding": "6.9.4",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: zynqmp_dpsub: Always register bridge\n\nWe must always register the DRM bridge, since zynqmp_dp_hpd_work_func\ncalls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be\ninitialized. We do this before zynqmp_dpsub_drm_init since that calls\ndrm_bridge_attach. This fixes the following lockdep warning:\n\n[   19.217084] ------------[ cut here ]------------\n[   19.227530] DEBUG_LOCKS_WARN_ON(lock-\u003emagic != lock)\n[   19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550\n[   19.241696] Modules linked in:\n[   19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96\n[   19.252046] Hardware name: xlnx,zynqmp (DT)\n[   19.256421] Workqueue: events zynqmp_dp_hpd_work_func\n[   19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   19.269104] pc : __mutex_lock+0x4bc/0x550\n[   19.273364] lr : __mutex_lock+0x4bc/0x550\n[   19.277592] sp : ffffffc085c5bbe0\n[   19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8\n[   19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000\n[   19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000\n[   19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000\n[   19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720\n[   19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001\n[   19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888\n[   19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000\n[   19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000\n[   19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880\n[   19.356581] Call trace:\n[   19.359160]  __mutex_lock+0x4bc/0x550\n[   19.363032]  mutex_lock_nested+0x24/0x30\n[   19.367187]  drm_bridge_hpd_notify+0x2c/0x6c\n[   19.371698]  zynqmp_dp_hpd_work_func+0x44/0x54\n[   19.376364]  process_one_work+0x3ac/0x988\n[   19.380660]  worker_thread+0x398/0x694\n[   19.384736]  kthread+0x1bc/0x1c0\n[   19.388241]  ret_from_fork+0x10/0x20\n[   19.392031] irq event stamp: 183\n[   19.395450] hardirqs last  enabled at (183): [\u003cffffffc0800b9278\u003e] finish_task_switch.isra.0+0xa8/0x2d4\n[   19.405140] hardirqs last disabled at (182): [\u003cffffffc081ad3754\u003e] __schedule+0x714/0xd04\n[   19.413612] softirqs last  enabled at (114): [\u003cffffffc080133de8\u003e] srcu_invoke_callbacks+0x158/0x23c\n[   19.423128] softirqs last disabled at (110): [\u003cffffffc080133de8\u003e] srcu_invoke_callbacks+0x158/0x23c\n[   19.432614] ---[ end trace 0000000000000000 ]---\n\n(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: drm: zynqmp_dpsub: Registrar siempre puente Siempre debemos registrar el puente DRM, ya que zynqmp_dp_hpd_work_func llama a drm_bridge_hpd_notify, que a su vez espera que hpd_mutex se inicialice. Hacemos esto antes de zynqmp_dpsub_drm_init ya que llama a drm_bridge_attach. Esto corrige la siguiente advertencia de bloqueo: [19.217084] ------------[ cortar aqu\u00ed ]------------ [ 19.227530] DEBUG_LOCKS_WARN_ON(lock-\u0026gt;magic != lock ) [ 19.227768] ADVERTENCIA: CPU: 0 PID: 140 en kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550 [ 19.241696] M\u00f3dulos vinculados en: [ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 No contaminado 6.6.20+ #96 [19.252046] Nombre de hardware: xlnx,zynqmp (DT) [19.256421] Cola de trabajo: eventos zynqmp_dp_hpd_work_func [19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS PE=-- ) [ 19.269104] pc : __mutex_lock+0x4bc/0x550 [ 19.273364] lr : __mutex_lock+0x4bc/0x550 [ 19.277592] sp : ffffffc085c5bbe0 [ 19.281066] x29: ffffffc085c5bbe0 8: 0000000000000000 x27: ffffff88009417f8 [ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000 [ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 00000000000000000 [ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000 [ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720 [ 19.318922] 4: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001 [ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9: 0001ff88003f3888 [19.334003] x8: 0001ff88003f3888 x7: 0000000000000000 x6 : 0000000000000000 [ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000 [ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880 [ 19.356581] Seguimiento de llamadas: [ 19.359160] __mutex_lock+0x4bc/0x550 [ 19.363032] mutex_lock_nested+0x24/0x30 [ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c [ zynqmp_dp_hpd_work_func +0x44/0x54 [ 19.376364] proceso_un_trabajo+0x3ac/0x988 [ 19.380660] hilo_trabajador+0x398/ 0x694 [19.384736] kthread+0x1bc/0x1c0 [19.388241] ret_from_fork+0x10/0x20 [19.392031] sello de evento irq: 183 [19.395450] hardirqs habilitado por \u00faltima vez en (183): [] terminar_task_switch.isra.0+0xa8/0x2d4 [ 19.405140] hardirqs deshabilitado por \u00faltima vez en (182): [] __schedule+0x714/0xd04 [ 19.413612] softirqs habilitado por \u00faltima vez en (114): [] srcu_invoke_callbacks+0x158/0x23c 19.423128] softirqs se deshabilit\u00f3 por \u00faltima vez en ( 110): [] srcu_invoke_callbacks+0x158/0x23c [ 19.432614] ---[ end trace 0000000000000000 ]--- (seleccionado de el commit 61ba791c4a7a09a370c45b70a81b8c7d4 cf6b2ae)"
    }
  ],
  "id": "CVE-2024-38664",
  "lastModified": "2026-06-17T07:40:49.810",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-38664",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-06-24T17:03:52.649243Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-06-24T14:15:12.707",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396ba"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396ba"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fc"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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