Vulnerability-Lookup

FKIE_CVE-2026-45900

Vulnerability from fkie_nvd - Published: 2026-05-27 14:17 - Updated: 2026-05-27 14:48

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix netdev memory leak in dpaa2_caam_probe When commit 0e1a4d427f58 ("crypto: caam: Unembed net_dev structure in dpaa2") converted embedded net_device to dynamically allocated pointers, it added cleanup in dpaa2_dpseci_disable() but missed adding cleanup in dpaa2_dpseci_free() for error paths. This causes memory leaks when dpaa2_dpseci_dpio_setup() fails during probe due to DPIO devices not being ready yet. The kernel's deferred probe mechanism handles the retry successfully, but the netdevs allocated during the failed probe attempt are never freed, resulting in kmemleak reports showing multiple leaked netdev-related allocations all traced back to dpaa2_caam_probe(). Fix this by preserving the CPU mask of allocated netdevs during setup and using it for cleanup in dpaa2_dpseci_free(). This approach ensures that only the CPUs that actually had netdevs allocated will be cleaned up, avoiding potential issues with CPU hotplug scenarios.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7d43252b3060b0ba4a192dce5dba85a3f39ffe39
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d5c6f254528caf78d5de7d9646dc21c81d351827
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d7decb572b55d2af33e59e9858fcee5d9ae69175
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e144cce29851610ce9c6eda405ce21118779aa51

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: caam - fix netdev memory leak in dpaa2_caam_probe\n\nWhen commit 0e1a4d427f58 (\"crypto: caam: Unembed net_dev structure in\ndpaa2\") converted embedded net_device to dynamically allocated pointers,\nit added cleanup in dpaa2_dpseci_disable() but missed adding cleanup in\ndpaa2_dpseci_free() for error paths.\n\nThis causes memory leaks when dpaa2_dpseci_dpio_setup() fails during probe\ndue to DPIO devices not being ready yet. The kernel\u0027s deferred probe\nmechanism handles the retry successfully, but the netdevs allocated during\nthe failed probe attempt are never freed, resulting in kmemleak reports\nshowing multiple leaked netdev-related allocations all traced back to\ndpaa2_caam_probe().\n\nFix this by preserving the CPU mask of allocated netdevs during setup and\nusing it for cleanup in dpaa2_dpseci_free(). This approach ensures that\nonly the CPUs that actually had netdevs allocated will be cleaned up,\navoiding potential issues with CPU hotplug scenarios."
    }
  ],
  "id": "CVE-2026-45900",
  "lastModified": "2026-05-27T14:48:31.480",
  "metrics": {},
  "published": "2026-05-27T14:17:04.360",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7d43252b3060b0ba4a192dce5dba85a3f39ffe39"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5c6f254528caf78d5de7d9646dc21c81d351827"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d7decb572b55d2af33e59e9858fcee5d9ae69175"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e144cce29851610ce9c6eda405ce21118779aa51"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-45900 (GCVE-0-2026-45900)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-05-27 12:17

Title

crypto: caam - fix netdev memory leak in dpaa2_caam_probe

Summary

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/d5c6f254528caf78d…
https://git.kernel.org/stable/c/d7decb572b55d2af3…
https://git.kernel.org/stable/c/e144cce29851610ce…
https://git.kernel.org/stable/c/7d43252b3060b0ba4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0e1a4d427f58b843864d835ccb79c32a118c6a77 , < d5c6f254528caf78d5de7d9646dc21c81d351827 (git) Affected: 0e1a4d427f58b843864d835ccb79c32a118c6a77 , < d7decb572b55d2af33e59e9858fcee5d9ae69175 (git) Affected: 0e1a4d427f58b843864d835ccb79c32a118c6a77 , < e144cce29851610ce9c6eda405ce21118779aa51 (git) Affected: 0e1a4d427f58b843864d835ccb79c32a118c6a77 , < 7d43252b3060b0ba4a192dce5dba85a3f39ffe39 (git)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 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/crypto/caam/caamalg_qi2.c",
            "drivers/crypto/caam/caamalg_qi2.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d5c6f254528caf78d5de7d9646dc21c81d351827",
              "status": "affected",
              "version": "0e1a4d427f58b843864d835ccb79c32a118c6a77",
              "versionType": "git"
            },
            {
              "lessThan": "d7decb572b55d2af33e59e9858fcee5d9ae69175",
              "status": "affected",
              "version": "0e1a4d427f58b843864d835ccb79c32a118c6a77",
              "versionType": "git"
            },
            {
              "lessThan": "e144cce29851610ce9c6eda405ce21118779aa51",
              "status": "affected",
              "version": "0e1a4d427f58b843864d835ccb79c32a118c6a77",
              "versionType": "git"
            },
            {
              "lessThan": "7d43252b3060b0ba4a192dce5dba85a3f39ffe39",
              "status": "affected",
              "version": "0e1a4d427f58b843864d835ccb79c32a118c6a77",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/caam/caamalg_qi2.c",
            "drivers/crypto/caam/caamalg_qi2.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "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": "6.12.75",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.14",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: caam - fix netdev memory leak in dpaa2_caam_probe\n\nWhen commit 0e1a4d427f58 (\"crypto: caam: Unembed net_dev structure in\ndpaa2\") converted embedded net_device to dynamically allocated pointers,\nit added cleanup in dpaa2_dpseci_disable() but missed adding cleanup in\ndpaa2_dpseci_free() for error paths.\n\nThis causes memory leaks when dpaa2_dpseci_dpio_setup() fails during probe\ndue to DPIO devices not being ready yet. The kernel\u0027s deferred probe\nmechanism handles the retry successfully, but the netdevs allocated during\nthe failed probe attempt are never freed, resulting in kmemleak reports\nshowing multiple leaked netdev-related allocations all traced back to\ndpaa2_caam_probe().\n\nFix this by preserving the CPU mask of allocated netdevs during setup and\nusing it for cleanup in dpaa2_dpseci_free(). This approach ensures that\nonly the CPUs that actually had netdevs allocated will be cleaned up,\navoiding potential issues with CPU hotplug scenarios."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:17:09.109Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d5c6f254528caf78d5de7d9646dc21c81d351827"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7decb572b55d2af33e59e9858fcee5d9ae69175"
        },
        {
          "url": "https://git.kernel.org/stable/c/e144cce29851610ce9c6eda405ce21118779aa51"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d43252b3060b0ba4a192dce5dba85a3f39ffe39"
        }
      ],
      "title": "crypto: caam - fix netdev memory leak in dpaa2_caam_probe",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45900",
    "datePublished": "2026-05-27T12:17:09.109Z",
    "dateReserved": "2026-05-13T15:03:33.083Z",
    "dateUpdated": "2026-05-27T12:17:09.109Z",
    "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-2026-45900

CVE-2026-45900 (GCVE-0-2026-45900)

Tags

Sightings

Nomenclature