FKIE_CVE-2026-64039

Vulnerability from fkie_nvd - Published: 2026-07-19 16:17 - Updated: 2026-07-20 15:17
Severity
7.7 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/snapshot: fix dumping of the unaligned regions The snapshotting code internally aligns data segment to 16 bytes. This works fine for DPU code (where most of the regions are aligned), but fails for snapshotting of the DSI data (because DSI data region is shifted by 4 bytes). Fix the code by removing length alignment and by accurately printing last registers in the region. While reworking the code also fix the 16x memory overallocation in msm_disp_state_dump_regs(). Patchwork: https://patchwork.freedesktop.org/patch/725449/
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/070e40acc59ef7bedba0314f59971ba87fcc8ab0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c90ececfad3fc5c4c43a75ece0e2d736ab3def1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ef79be774706dddcfcace0331fa7ff32a73c73e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76824d2467feb1828b745d6add2541918d7be3da
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8fb070cf95847b29ef6cb15ec2c0de2bf4704676
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cdd1aaf0ee962f50810b9aef7928f2313989d55f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cecd34e046121d788a70b5c8b4f8a88916637953
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8fb070cf95847b29ef6cb15ec2c0de2bf4704676",
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "versionType": "git"
            },
            {
              "lessThan": "cecd34e046121d788a70b5c8b4f8a88916637953",
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "versionType": "git"
            },
            {
              "lessThan": "070e40acc59ef7bedba0314f59971ba87fcc8ab0",
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "versionType": "git"
            },
            {
              "lessThan": "1ef79be774706dddcfcace0331fa7ff32a73c73e",
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "versionType": "git"
            },
            {
              "lessThan": "cdd1aaf0ee962f50810b9aef7928f2313989d55f",
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "versionType": "git"
            },
            {
              "lessThan": "0c90ececfad3fc5c4c43a75ece0e2d736ab3def1",
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "versionType": "git"
            },
            {
              "lessThan": "76824d2467feb1828b745d6add2541918d7be3da",
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.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": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "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/snapshot: fix dumping of the unaligned regions\n\nThe snapshotting code internally aligns data segment to 16 bytes. This\nworks fine for DPU code (where most of the regions are aligned), but\nfails for snapshotting of the DSI data (because DSI data region is\nshifted by 4 bytes). Fix the code by removing length alignment and by\naccurately printing last registers in the region. While reworking the\ncode also fix the 16x memory overallocation in\nmsm_disp_state_dump_regs().\n\nPatchwork: https://patchwork.freedesktop.org/patch/725449/"
    }
  ],
  "id": "CVE-2026-64039",
  "lastModified": "2026-07-20T15:17:04.760",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.2,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-07-19T16:17:44.153",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/070e40acc59ef7bedba0314f59971ba87fcc8ab0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0c90ececfad3fc5c4c43a75ece0e2d736ab3def1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1ef79be774706dddcfcace0331fa7ff32a73c73e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76824d2467feb1828b745d6add2541918d7be3da"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8fb070cf95847b29ef6cb15ec2c0de2bf4704676"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cdd1aaf0ee962f50810b9aef7928f2313989d55f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cecd34e046121d788a70b5c8b4f8a88916637953"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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