CVE-2026-64231 (GCVE-0-2026-64231)
Vulnerability from cvelistv5
Published
2026-07-24 15:23
Modified
2026-07-24 15:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dsi: don't dump registers past the mapped region On DSI 6G platforms the IO address space is internally adjusted by io_offset. Later this adjusted address might be used for memory dumping. However the size that is used for memory dumping isn't adjusted to account for the io_offset, leading to the potential access to the unmapped region. Lower ctrl_size by the io_offset value to prevent access past the mapped area. msm_disp_snapshot_add_block+0x1d4/0x3c8 [msm] (P) msm_dsi_host_snapshot+0x4c/0x78 [msm] msm_dsi_snapshot+0x28/0x50 [msm] msm_disp_snapshot_capture_state+0x74/0x140 [msm] msm_disp_snapshot_state_sync+0x60/0x90 [msm] _msm_disp_snapshot_work+0x30/0x90 [msm] kthread_worker_fn+0xdc/0x460 kthread+0x120/0x140 Patchwork: https://patchwork.freedesktop.org/patch/721747/
References
Impacted products
Vendor Product Version
Linux Linux Version: bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645
Version: bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645
Version: bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645
Version: bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645
Version: bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645
Version: bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/dsi/dsi_host.c"
          ],
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/dsi/dsi_host.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "0",
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "vulnerable": true
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dsi: don\u0027t dump registers past the mapped region\n\nOn DSI 6G platforms the IO address space is internally adjusted by\nio_offset. Later this adjusted address might be used for memory dumping.\nHowever the size that is used for memory dumping isn\u0027t adjusted to\naccount for the io_offset, leading to the potential access to the\nunmapped region. Lower ctrl_size by the io_offset value to prevent\naccess past the mapped area.\n\n msm_disp_snapshot_add_block+0x1d4/0x3c8 [msm] (P)\n msm_dsi_host_snapshot+0x4c/0x78 [msm]\n msm_dsi_snapshot+0x28/0x50 [msm]\n msm_disp_snapshot_capture_state+0x74/0x140 [msm]\n msm_disp_snapshot_state_sync+0x60/0x90 [msm]\n _msm_disp_snapshot_work+0x30/0x90 [msm]\n kthread_worker_fn+0xdc/0x460\n kthread+0x120/0x140\n\nPatchwork: https://patchwork.freedesktop.org/patch/721747/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-24T15:23:13.175Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761"
        },
        {
          "url": "https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1"
        },
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          "url": "https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b"
        },
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          "url": "https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663"
        },
        {
          "url": "https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4"
        }
      ],
      "title": "drm/msm/dsi: don\u0027t dump registers past the mapped region",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64231",
    "datePublished": "2026-07-24T15:23:13.175Z",
    "dateReserved": "2026-07-19T15:36:31.771Z",
    "dateUpdated": "2026-07-24T15:23:13.175Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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