{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b0530eb1191307e9038d75e5c83973a396137681"
            },
            {
              "fixed": "1181a7028d37e0b1e720a36125a03f5db97e3d27"
            },
            {
              "fixed": "9830999c9e065c1813ec5435bfe4eab98ee54a87"
            },
            {
              "fixed": "c5735c7d0eef7a5240f9c1c66e44ba52a1be58d6"
            },
            {
              "fixed": "0f7dd5839cfabaf9c007fb718ec66e907a473c93"
            },
            {
              "fixed": "0ccf4f27b4652570b5de3de02a89a86435559de9"
            },
            {
              "fixed": "bc1dccc518cc5ab5140fba06c27e7188e0ed342b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.9.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.141"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.91"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53056.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dpu: fix mismatch between power and frequency\n\nDuring DPU runtime suspend, calling dev_pm_opp_set_rate(dev, 0) drops\nthe MMCX rail to MIN_SVS while the core clock frequency remains at its\noriginal (highest) rate. When runtime resume re-enables the clock, this\nmay result in a mismatch between the rail voltage and the clock rate.\n\nFor example, in the DPU bind path, the sequence could be:\n  cpu0: dev_sync_state -\u003e rpmhpd_sync_state\n  cpu1:                                     dpu_kms_hw_init\ntimeline 0 ------------------------------------------------\u003e t\n\nAfter rpmhpd_sync_state, the voltage performance is no longer guaranteed\nto stay at the highest level. During dpu_kms_hw_init, calling\ndev_pm_opp_set_rate(dev, 0) drops the voltage, causing the MMCX rail to\nfall to MIN_SVS while the core clock is still at its maximum frequency.\nWhen the power is re-enabled, only the clock is enabled, leading to a\nsituation where the MMCX rail is at MIN_SVS but the core clock is at its\nhighest rate. In this state, the rail cannot sustain the clock rate,\nwhich may cause instability or system crash.\n\nRemove the call to dev_pm_opp_set_rate(dev, 0) from dpu_runtime_suspend\nto ensure the correct vote is restored when DPU resumes.\n\nPatchwork: https://patchwork.freedesktop.org/patch/710077/",
  "id": "CVE-2026-53056",
  "modified": "2026-08-12T03:51:18.351003323Z",
  "published": "2026-06-24T16:30:01.694Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ccf4f27b4652570b5de3de02a89a86435559de9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f7dd5839cfabaf9c007fb718ec66e907a473c93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1181a7028d37e0b1e720a36125a03f5db97e3d27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9830999c9e065c1813ec5435bfe4eab98ee54a87"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc1dccc518cc5ab5140fba06c27e7188e0ed342b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5735c7d0eef7a5240f9c1c66e44ba52a1be58d6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53056.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53056"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/msm/dpu: fix mismatch between power and frequency"
}