FKIE_CVE-2025-40253

Vulnerability from fkie_nvd - Published: 2025-12-04 16:16 - Updated: 2026-06-17 09:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/ctcm: Fix double-kfree The function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally from function 'ctcmpc_unpack_skb'. It frees passed mpcginfo. After that a call to function 'kfree' in function 'ctcmpc_unpack_skb' frees it again. Remove 'kfree' call in function 'mpc_rcvd_sweep_req(mpcginfo)'. Bug detected by the clang static analyzer.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3b177b2ded563df16f6d5920671ffcfe5915d472
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/43096dab8cc60fc39133205fd149a54d3acebea8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7616e2eee679746d526c7f5befd4eedb995935b5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7ff76f8dc6b550f8d16487bf3cebc278be720b5c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b9dbfb1b5699f9f1e4991f96741bdf9047147589
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/s390/net/ctcm_mpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2",
              "status": "affected",
              "version": "467ddbbe7e749d558f13e640f50f546149c930b3",
              "versionType": "git"
            },
            {
              "lessThan": "6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a",
              "status": "affected",
              "version": "4d3c6d741816539b57fa1110c3f765a8c176d7b4",
              "versionType": "git"
            },
            {
              "lessThan": "7616e2eee679746d526c7f5befd4eedb995935b5",
              "status": "affected",
              "version": "2bd57101c3ecf3f8c0da1d26c2b6ad511adc6d50",
              "versionType": "git"
            },
            {
              "lessThan": "43096dab8cc60fc39133205fd149a54d3acebea8",
              "status": "affected",
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "versionType": "git"
            },
            {
              "lessThan": "3b177b2ded563df16f6d5920671ffcfe5915d472",
              "status": "affected",
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "versionType": "git"
            },
            {
              "lessThan": "b9dbfb1b5699f9f1e4991f96741bdf9047147589",
              "status": "affected",
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "versionType": "git"
            },
            {
              "lessThan": "7ff76f8dc6b550f8d16487bf3cebc278be720b5c",
              "status": "affected",
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "versionType": "git"
            },
            {
              "lessThan": "da02a1824884d6c84c5e5b5ac373b0c9e3288ec2",
              "status": "affected",
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "36933de59f67029e5739a98393891f9b94f27e0f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d886b4292a1c5b4facdb2dfdc31f0fecc71df898",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4c9ba0fed125deba8416b995b0c274b0804c0c24",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ea0053af5dab4d63a9c44563973fb2f3bfd9eb2b",
              "versionType": "git"
            },
            {
              "lessThan": "5.4.302",
              "status": "affected",
              "version": "5.4.195",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.247",
              "status": "affected",
              "version": "5.10.117",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.197",
              "status": "affected",
              "version": "5.15.41",
              "versionType": "semver"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.315",
              "versionType": "semver"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.280",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.244",
              "versionType": "semver"
            },
            {
              "lessThan": "5.18",
              "status": "affected",
              "version": "5.17.9",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/s390/net/ctcm_mpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.118",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.60",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/ctcm: Fix double-kfree\n\nThe function \u0027mpc_rcvd_sweep_req(mpcginfo)\u0027 is called conditionally\nfrom function \u0027ctcmpc_unpack_skb\u0027. It frees passed mpcginfo.\nAfter that a call to function \u0027kfree\u0027 in function \u0027ctcmpc_unpack_skb\u0027\nfrees it again.\n\nRemove \u0027kfree\u0027 call in function \u0027mpc_rcvd_sweep_req(mpcginfo)\u0027.\n\nBug detected by the clang static analyzer."
    }
  ],
  "id": "CVE-2025-40253",
  "lastModified": "2026-06-17T09:21:32.180",
  "metrics": {},
  "published": "2025-12-04T16:16:18.937",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3b177b2ded563df16f6d5920671ffcfe5915d472"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/43096dab8cc60fc39133205fd149a54d3acebea8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7616e2eee679746d526c7f5befd4eedb995935b5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7ff76f8dc6b550f8d16487bf3cebc278be720b5c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b9dbfb1b5699f9f1e4991f96741bdf9047147589"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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