Vulnerability-Lookup

FKIE_CVE-2026-23285

Vulnerability from fkie_nvd - Published: 2026-03-25 11:16 - Updated: 2026-05-22 00:12

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbd_request_endio(), READ_COMPLETED_WITH_ERROR is passed to __req_mod() with a NULL peer_device: __req_mod(req, what, NULL, &m); The READ_COMPLETED_WITH_ERROR handler then unconditionally passes this NULL peer_device to drbd_set_out_of_sync(), which dereferences it, causing a null-pointer dereference. Fix this by obtaining the peer_device via first_peer_device(device), matching how drbd_req_destroy() handles the same situation.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0d195d3b205ca90db30d70d09d7bb6909aac178f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1e906c08594c8f9a6a524f38ede2c4e051196106	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4e8935053ba389ae8d6685c10854d8021931bd89	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6f1d1614f841d91a4169db65812ffd1271735b42	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/91df51d2df0ca4fd3281f73626341563d64a98a5	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B5DC2349-A344-41CA-9A54-55596F8AD981",
              "versionEndExcluding": "6.6.130",
              "versionStartIncluding": "6.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B3D12E00-E42D-4056-B354-BAD4903C03A5",
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              "versionStartIncluding": "6.7",
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            {
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            }
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        }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrbd: fix null-pointer dereference on local read error\n\nIn drbd_request_endio(), READ_COMPLETED_WITH_ERROR is passed to\n__req_mod() with a NULL peer_device:\n\n  __req_mod(req, what, NULL, \u0026m);\n\nThe READ_COMPLETED_WITH_ERROR handler then unconditionally passes this\nNULL peer_device to drbd_set_out_of_sync(), which dereferences it,\ncausing a null-pointer dereference.\n\nFix this by obtaining the peer_device via first_peer_device(device),\nmatching how drbd_req_destroy() handles the same situation."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrbd: correcci\u00f3n de desreferencia de puntero nulo en error de lectura local\n\nEn drbd_request_endio(), READ_COMPLETED_WITH_ERROR se pasa a __req_mod() con un peer_device NULO:\n\n__req_mod(req, what, NULL, \u0026amp;m);\n\nEl gestor de READ_COMPLETED_WITH_ERROR luego pasa incondicionalmente este peer_device NULO a drbd_set_out_of_sync(), que lo desreferencia, causando una desreferencia de puntero nulo.\n\nEsto se corrige obteniendo el peer_device a trav\u00e9s de first_peer_device(device), coincidiendo con c\u00f3mo drbd_req_destroy() maneja la misma situaci\u00f3n."
    }
  ],
  "id": "CVE-2026-23285",
  "lastModified": "2026-05-22T00:12:09.970",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-25T11:16:23.247",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-23285 (GCVE-0-2026-23285)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-05-11 22:03

Title

drbd: fix null-pointer dereference on local read error

Summary

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/6f1d1614f841d91a4…
https://git.kernel.org/stable/c/1e906c08594c8f9a6…
https://git.kernel.org/stable/c/4e8935053ba389ae8…
https://git.kernel.org/stable/c/91df51d2df0ca4fd3…
https://git.kernel.org/stable/c/0d195d3b205ca90db…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 6f1d1614f841d91a4169db65812ffd1271735b42 (git) Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 1e906c08594c8f9a6a524f38ede2c4e051196106 (git) Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 4e8935053ba389ae8d6685c10854d8021931bd89 (git) Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 91df51d2df0ca4fd3281f73626341563d64a98a5 (git) Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 0d195d3b205ca90db30d70d09d7bb6909aac178f (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/drbd/drbd_req.c"
          ],
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          ]
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          ],
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          "vendor": "Linux",
          "versions": [
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            },
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              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
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        {
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      ],
      "title": "drbd: fix null-pointer dereference on local read error",
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    "cveId": "CVE-2026-23285",
    "datePublished": "2026-03-25T10:26:44.698Z",
    "dateReserved": "2026-01-13T15:37:45.992Z",
    "dateUpdated": "2026-05-11T22:03:54.818Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23285

CVE-2026-23285 (GCVE-0-2026-23285)

Tags

Sightings

Nomenclature