FKIE_CVE-2026-64231

Vulnerability from fkie_nvd - Published: 2026-07-24 16:16 - Updated: 2026-07-30 14:59
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "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": [
            {
              "lessThan": "5e2c196c3430fb94225c4102b1028d0146544761",
              "status": "affected",
              "version": "bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645",
              "versionType": "git"
            },
            {
              "lessThan": "567b5e976e2e15280d78c9ef2add1954a0bbb5b1",
              "status": "affected",
              "version": "bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645",
              "versionType": "git"
            },
            {
              "lessThan": "9f8274749d9010a1a72f97e547b7eb9ebb82345b",
              "status": "affected",
              "version": "bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645",
              "versionType": "git"
            },
            {
              "lessThan": "a184aec790135938b0fadb415e55accd1f8685a0",
              "status": "affected",
              "version": "bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645",
              "versionType": "git"
            },
            {
              "lessThan": "ab871d5882953e5574ae2bc47bec88c2e3d22663",
              "status": "affected",
              "version": "bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645",
              "versionType": "git"
            },
            {
              "lessThan": "5b49a46baa853b26dbefa65c6c75dd9ff69f63d4",
              "status": "affected",
              "version": "bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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/"
    }
  ],
  "id": "CVE-2026-64231",
  "lastModified": "2026-07-30T14:59:47.950",
  "metrics": {},
  "published": "2026-07-24T16:16:52.250",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}



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