CVE-2026-43397 (GCVE-0-2026-43397)
Vulnerability from cvelistv5
Published
2026-05-08 14:21
Modified
2026-05-11 22:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/bridge: samsung-dsim: Fix memory leak in error path In samsung_dsim_host_attach(), drm_bridge_add() is called to add the bridge. However, if samsung_dsim_register_te_irq() or pdata->host_ops->attach() fails afterwards, the function returns without removing the bridge, causing a memory leak. Fix this by adding proper error handling with goto labels to ensure drm_bridge_remove() is called in all error paths. Also ensure that samsung_dsim_unregister_te_irq() is called if the attach operation fails after the TE IRQ has been registered. samsung_dsim_unregister_te_irq() function is moved without changes to be before samsung_dsim_host_attach() to avoid forward declaration.
References
Impacted products
Vendor Product Version
Linux Linux Version: e7447128ca4a250374d6721ee98e3e3cf99551a6
Version: e7447128ca4a250374d6721ee98e3e3cf99551a6
Version: e7447128ca4a250374d6721ee98e3e3cf99551a6
Version: e7447128ca4a250374d6721ee98e3e3cf99551a6
Version: e7447128ca4a250374d6721ee98e3e3cf99551a6
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/bridge/samsung-dsim.c"
          ],
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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/bridge/samsung-dsim.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.78",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.130",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.78",
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                  "vulnerable": true
                },
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                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: samsung-dsim: Fix memory leak in error path\n\nIn samsung_dsim_host_attach(), drm_bridge_add() is called to add the\nbridge. However, if samsung_dsim_register_te_irq() or\npdata-\u003ehost_ops-\u003eattach() fails afterwards, the function returns\nwithout removing the bridge, causing a memory leak.\n\nFix this by adding proper error handling with goto labels to ensure\ndrm_bridge_remove() is called in all error paths. Also ensure that\nsamsung_dsim_unregister_te_irq() is called if the attach operation\nfails after the TE IRQ has been registered.\n\nsamsung_dsim_unregister_te_irq() function is moved without changes\nto be before samsung_dsim_host_attach() to avoid forward declaration."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:23:47.602Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/98310fe3a2a79671b739a5344c1a11d74c503e25"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b07f7d2c5a4078c2f1c11bb36685084fe4e5c95"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6d779654cda63d632bd8dfcdcabd125057e30a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/a40b92fb4b26d4cb1b5e439e55a56db7e79a82d1"
        },
        {
          "url": "https://git.kernel.org/stable/c/803ec1faf7c1823e6e3b1f2aaa81be18528c9436"
        }
      ],
      "title": "drm/bridge: samsung-dsim: Fix memory leak in error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43397",
    "datePublished": "2026-05-08T14:21:40.185Z",
    "dateReserved": "2026-05-01T14:12:56.007Z",
    "dateUpdated": "2026-05-11T22:23:47.602Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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