Vulnerability-Lookup

FKIE_CVE-2026-31543

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-24 17:51

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying When debug logging is enabled, read_key_from_user_keying() logs the first 8 bytes of the key payload and partially exposes the dm-crypt key. Stop logging any key bytes.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/36f46b0e36892eba08978eef7502ff3c94ddba77
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4897bd307ba8757c31a3325ba6730961be606016
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ed8d91f469845d62d44c565a55d2ab1767969357

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrash_dump: don\u0027t log dm-crypt key bytes in read_key_from_user_keying\n\nWhen debug logging is enabled, read_key_from_user_keying() logs the first\n8 bytes of the key payload and partially exposes the dm-crypt key.  Stop\nlogging any key bytes."
    }
  ],
  "id": "CVE-2026-31543",
  "lastModified": "2026-04-24T17:51:40.810",
  "metrics": {},
  "published": "2026-04-24T15:16:28.350",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/36f46b0e36892eba08978eef7502ff3c94ddba77"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4897bd307ba8757c31a3325ba6730961be606016"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ed8d91f469845d62d44c565a55d2ab1767969357"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-31543 (GCVE-0-2026-31543)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:33 – Updated: 2026-04-24 14:33

Title

crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/4897bd307ba8757c3…
	https://git.kernel.org/stable/c/ed8d91f469845d62d…
	https://git.kernel.org/stable/c/36f46b0e36892eba0…

Impacted products

Vendor

Product

Version

Linux

Affected: 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132 , < 4897bd307ba8757c31a3325ba6730961be606016 (git)
Affected: 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132 , < ed8d91f469845d62d44c565a55d2ab1767969357 (git)
Affected: 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132 , < 36f46b0e36892eba08978eef7502ff3c94ddba77 (git)

Linux

Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 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": [
            "kernel/crash_dump_dm_crypt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4897bd307ba8757c31a3325ba6730961be606016",
              "status": "affected",
              "version": "479e58549b0fa7e80f1e0b9e69e0a2a8e6711132",
              "versionType": "git"
            },
            {
              "lessThan": "ed8d91f469845d62d44c565a55d2ab1767969357",
              "status": "affected",
              "version": "479e58549b0fa7e80f1e0b9e69e0a2a8e6711132",
              "versionType": "git"
            },
            {
              "lessThan": "36f46b0e36892eba08978eef7502ff3c94ddba77",
              "status": "affected",
              "version": "479e58549b0fa7e80f1e0b9e69e0a2a8e6711132",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/crash_dump_dm_crypt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "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": "6.18.20",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.10",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrash_dump: don\u0027t log dm-crypt key bytes in read_key_from_user_keying\n\nWhen debug logging is enabled, read_key_from_user_keying() logs the first\n8 bytes of the key payload and partially exposes the dm-crypt key.  Stop\nlogging any key bytes."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:33:12.163Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4897bd307ba8757c31a3325ba6730961be606016"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed8d91f469845d62d44c565a55d2ab1767969357"
        },
        {
          "url": "https://git.kernel.org/stable/c/36f46b0e36892eba08978eef7502ff3c94ddba77"
        }
      ],
      "title": "crash_dump: don\u0027t log dm-crypt key bytes in read_key_from_user_keying",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31543",
    "datePublished": "2026-04-24T14:33:12.163Z",
    "dateReserved": "2026-03-09T15:48:24.114Z",
    "dateUpdated": "2026-04-24T14:33:12.163Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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-2026-31543

CVE-2026-31543 (GCVE-0-2026-31543)

Tags

Sightings

Nomenclature