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CVE-2026-31573

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: Fix kernel panic due to __initconst misuse Fix a kernel panic when probing the driver as a module: Unable to handle kernel paging request at virtual address ffffd9c18eb05000 of_find_matching_node_and_match+0x5c/0x1a0 hantro_probe+0x2f4/0x7d0 [hantro_vpu] The imx8mq_vpu_shared_resources array is referenced by variant structures through their shared_devices field. When built as a module, __initconst causes this data to be freed after module init, but it's later accessed during probe, causing a page fault. The imx8mq_vpu_shared_resources is referenced from non-init code, so keeping __initconst or __initconst_or_module here is wrong. Drop the __initconst annotation and let it live in the normal .rodata section. A bug of __initconst called from regular non-init probe code leading to bugs during probe deferrals or during unbind-bind cycles.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-04-24 15:16:31.857000
Last modified
2026-10-30 13:18:41.263000
View original CVE JSON
{
  "id": "CVE-2026-31573",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-04-24T15:16:31.857",
  "lastModified": "2026-10-30T13:18:41.263",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: verisilicon: Fix kernel panic due to __initconst misuse\n\nFix a kernel panic when probing the driver as a module:\n\n  Unable to handle kernel paging request at virtual address\n  ffffd9c18eb05000\n  of_find_matching_node_and_match+0x5c/0x1a0\n  hantro_probe+0x2f4/0x7d0 [hantro_vpu]\n\nThe imx8mq_vpu_shared_resources array is referenced by variant\nstructures through their shared_devices field. When built as a\nmodule, __initconst causes this data to be freed after module\ninit, but it's later accessed during probe, causing a page fault.\n\nThe imx8mq_vpu_shared_resources is referenced from non-init code,\nso keeping __initconst or __initconst_or_module here is wrong.\n\nDrop the __initconst annotation and let it live in the normal .rodata\nsection.\n\nA bug of __initconst called from regular non-init probe code\nleading to bugs during probe deferrals or during unbind-bind cycles."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/media/platform/verisilicon/imx8m_vpu_hw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
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              "version": "42a9fbccb33a38c5a9e0a84680939da8eae4f60e",
              "lessThan": "53b88097bb0e0b895a691ae7da4a54b567c0d375",
              "versionType": "git",
              "status": "affected"
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              "versionType": "git",
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            },
            {
              "version": "f988fbf0536b42f6a05ccc1ac709d60236ec1aa6",
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            {
              "version": "6.6.160",
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            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/media/platform/verisilicon/imx8m_vpu_hw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.19.6",
              "lessThan": "6.19.11",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.19.6",
              "versionEndExcluding": "6.19.11",
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  "references": [
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      "url": "https://git.kernel.org/stable/c/07861e84b766c6db8014bc34138f3be4a62aad2a",
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}