CVE-2026-90297 (GCVE-0-2026-90297)
Vulnerability from cvelistv5
Published
2026-09-17 16:08
Modified
2026-10-19 09:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: crtc: Propagate layer initialization error sun4i_crtc_init() returns plain NULL when layer initialization fails, while all its other error paths return an error pointer. The only caller, sun4i_tcon_bind(), checks the result with IS_ERR() and happily continues with tcon->crtc set to NULL. sun4i_rgb_init() and sun4i_lvds_init() then dereference it in drm_crtc_mask(), which oopses. Return the error pointer instead.
References
Impacted products
Vendor Product Version
Linux Linux Version: dcd215801b0279f0a021516526cf7c0b67d5302e
Version: dcd215801b0279f0a021516526cf7c0b67d5302e
Version: dcd215801b0279f0a021516526cf7c0b67d5302e
Version: dcd215801b0279f0a021516526cf7c0b67d5302e
Version: dcd215801b0279f0a021516526cf7c0b67d5302e
Version: dcd215801b0279f0a021516526cf7c0b67d5302e
Version: dcd215801b0279f0a021516526cf7c0b67d5302e
Version: dcd215801b0279f0a021516526cf7c0b67d5302e
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/sun4i/sun4i_crtc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aaf812960fb5ade24be7a1d8fea27a1ffc458c30",
              "status": "affected",
              "version": "dcd215801b0279f0a021516526cf7c0b67d5302e",
              "versionType": "git"
            },
            {
              "lessThan": "e216d6168f25a69e5ae5b981ee73b3a860a46441",
              "status": "affected",
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              "versionType": "git"
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            {
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              "versionType": "git"
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            {
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              "status": "affected",
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              "versionType": "git"
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            {
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/sun4i/sun4i_crtc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.12"
            },
            {
              "lessThan": "4.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sun4i: crtc: Propagate layer initialization error\n\nsun4i_crtc_init() returns plain NULL when layer initialization fails,\nwhile all its other error paths return an error pointer. The only\ncaller, sun4i_tcon_bind(), checks the result with IS_ERR() and happily\ncontinues with tcon-\u003ecrtc set to NULL. sun4i_rgb_init() and\nsun4i_lvds_init() then dereference it in drm_crtc_mask(), which\noopses.\n\nReturn the error pointer instead."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:01:15.411Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/aaf812960fb5ade24be7a1d8fea27a1ffc458c30"
        },
        {
          "url": "https://git.kernel.org/stable/c/e216d6168f25a69e5ae5b981ee73b3a860a46441"
        },
        {
          "url": "https://git.kernel.org/stable/c/2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829"
        },
        {
          "url": "https://git.kernel.org/stable/c/1882112124a642de7571fbf354fa1929decbb3ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f32af44d43332c02198752e596df00659bf4354"
        },
        {
          "url": "https://git.kernel.org/stable/c/65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0d3219ffd4c0d42295e0dc949856067b7818b71"
        },
        {
          "url": "https://git.kernel.org/stable/c/7061ff05ed4a3cf16e83f7e3ad09cbd212508a32"
        }
      ],
      "title": "drm/sun4i: crtc: Propagate layer initialization error",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90297",
    "datePublished": "2026-09-17T16:08:22.594Z",
    "dateReserved": "2026-09-11T19:38:34.799Z",
    "dateUpdated": "2026-10-19T09:01:15.411Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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