Vulnerability-Lookup

GHSA-RRJQ-WRM9-P6GM

Vulnerability from github – Published: 2026-10-18 18:32 – Updated: 2026-10-18 18:32

Details

In the Linux kernel, the following vulnerability has been resolved:

EDAC/altera: Drop __init from ECC setup paths for re-probe safety

Sashiko reports:

"Does suppressing sysfs unbinding fully prevent the execution of freed __init memory? If altr_sysmgr_regmap_lookup_by_phandle() returns -EPROBE_DEFER, the probe is deferred until after __init memory is freed."

The a10 EDAC .setup callbacks (sdmmc, ethernet, nand, dma, usb, qspi) and their helpers (altr_init_a10_ecc_device_type, altr_init_a10_ecc_block) were marked __init. These run from the probe path, which may execute after init memory is freed -- e.g. a probe deferred via -EPROBE_DEFER that only succeeds once a late/module dependency appears, or a manual unbind/rebind. Calling __init code then dereferences freed memory. Remove __init so these functions remain valid at runtime.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98740"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-18T16:17:27Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/altera: Drop __init from ECC setup paths for re-probe safety\n\nSashiko reports:\n\n\"Does suppressing sysfs unbinding fully prevent the execution of freed __init\nmemory? If altr_sysmgr_regmap_lookup_by_phandle() returns -EPROBE_DEFER, the\nprobe is deferred until after __init memory is freed.\"\n\nThe a10 EDAC .setup callbacks (sdmmc, ethernet, nand, dma, usb, qspi) and\ntheir helpers (altr_init_a10_ecc_device_type, altr_init_a10_ecc_block) were\nmarked __init. These run from the probe path, which may execute after init\nmemory is freed -- e.g. a probe deferred via -EPROBE_DEFER that only succeeds\nonce a late/module dependency appears, or a manual unbind/rebind. Calling\n__init code then dereferences freed memory. Remove __init so these functions\nremain valid at runtime.",
  "id": "GHSA-rrjq-wrm9-p6gm",
  "modified": "2026-10-18T18:32:01Z",
  "published": "2026-10-18T18:32:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98740"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ec26cb7984740941892ad21fa974963c198bfaa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9846b85c2eb8b749c3f14bdcc31b1070f6aabba8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b62a264163ca51bee04785c581344751812395df"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-98740 (GCVE-0-2026-98740)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:47 – Updated: 2026-10-19 09:24

Title

EDAC/altera: Drop __init from ECC setup paths for re-probe safety

Summary

In the Linux kernel, the following vulnerability has been resolved: EDAC/altera: Drop __init from ECC setup paths for re-probe safety Sashiko reports: "Does suppressing sysfs unbinding fully prevent the execution of freed __init memory? If altr_sysmgr_regmap_lookup_by_phandle() returns -EPROBE_DEFER, the probe is deferred until after __init memory is freed." The a10 EDAC .setup callbacks (sdmmc, ethernet, nand, dma, usb, qspi) and their helpers (altr_init_a10_ecc_device_type, altr_init_a10_ecc_block) were marked __init. These run from the probe path, which may execute after init memory is freed -- e.g. a probe deferred via -EPROBE_DEFER that only succeeds once a late/module dependency appears, or a manual unbind/rebind. Calling __init code then dereferences freed memory. Remove __init so these functions remain valid at runtime.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6847 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/9846b85c2eb8b749c…
https://git.kernel.org/stable/c/4ec26cb7984740941…
https://git.kernel.org/stable/c/b62a264163ca51bee…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 788586efd116d6d7d05985881eda503333e702b4 , < 9846b85c2eb8b749c3f14bdcc31b1070f6aabba8 (git) Affected: 788586efd116d6d7d05985881eda503333e702b4 , < 4ec26cb7984740941892ad21fa974963c198bfaa (git) Affected: 788586efd116d6d7d05985881eda503333e702b4 , < b62a264163ca51bee04785c581344751812395df (git)
Linux	Linux	Affected: 5.2 Unaffected: 0 , < 5.2 (semver) Unaffected: 6.18.56 , ≤ 6.18.* (semver) Unaffected: 7.2.10 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/edac/altera_edac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9846b85c2eb8b749c3f14bdcc31b1070f6aabba8",
              "status": "affected",
              "version": "788586efd116d6d7d05985881eda503333e702b4",
              "versionType": "git"
            },
            {
              "lessThan": "4ec26cb7984740941892ad21fa974963c198bfaa",
              "status": "affected",
              "version": "788586efd116d6d7d05985881eda503333e702b4",
              "versionType": "git"
            },
            {
              "lessThan": "b62a264163ca51bee04785c581344751812395df",
              "status": "affected",
              "version": "788586efd116d6d7d05985881eda503333e702b4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/edac/altera_edac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "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": "6.18.56",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.10",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/altera: Drop __init from ECC setup paths for re-probe safety\n\nSashiko reports:\n\n\"Does suppressing sysfs unbinding fully prevent the execution of freed __init\nmemory? If altr_sysmgr_regmap_lookup_by_phandle() returns -EPROBE_DEFER, the\nprobe is deferred until after __init memory is freed.\"\n\nThe a10 EDAC .setup callbacks (sdmmc, ethernet, nand, dma, usb, qspi) and\ntheir helpers (altr_init_a10_ecc_device_type, altr_init_a10_ecc_block) were\nmarked __init. These run from the probe path, which may execute after init\nmemory is freed -- e.g. a probe deferred via -EPROBE_DEFER that only succeeds\nonce a late/module dependency appears, or a manual unbind/rebind. Calling\n__init code then dereferences freed memory. Remove __init so these functions\nremain valid at runtime."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:24:50.943Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/9846b85c2eb8b749c3f14bdcc31b1070f6aabba8"
        },
        {
          "url": "https://git.kernel.org/stable/c/4ec26cb7984740941892ad21fa974963c198bfaa"
        },
        {
          "url": "https://git.kernel.org/stable/c/b62a264163ca51bee04785c581344751812395df"
        }
      ],
      "title": "EDAC/altera: Drop __init from ECC setup paths for re-probe safety",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98740",
    "datePublished": "2026-10-18T15:47:24.602Z",
    "dateReserved": "2026-09-25T10:25:14.367Z",
    "dateUpdated": "2026-10-19T09:24:50.943Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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