Vulnerability-Lookup

FKIE_CVE-2025-22062

Vulnerability from fkie_nvd - Published: 2025-04-16 15:15 - Updated: 2026-10-15 22:18

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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: sctp: add mutual exclusion in proc_sctp_do_udp_port() We must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start() or risk a crash as syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] CPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 Not tainted 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653 Call Trace: <TASK> udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181 sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930 proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553 proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601 iter_file_splice_write+0x91c/0x1150 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xafd/0xe50 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1429 [inline] __se_sys_sendfile64 fs/read_write.c:1415 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/65ccb2793da7401772a3ffe85355c831b313c59f
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b3598f53211ba1025485306de2733bdd241311a3
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html

Impacted products

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

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sctp/sysctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "65ccb2793da7401772a3ffe85355c831b313c59f",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "b3598f53211ba1025485306de2733bdd241311a3",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "e5178bfc55b3a78000f0f8298e7ade88783ce581",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "efb8cb487be8f4ba6aaef616011d702d6a083ed1",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "d3d7675d77622f6ca1aae14c51f80027b36283f8",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "10206302af856791fbcc27a33ed3c3eb09b2793d",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sctp/sysctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.184",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F1676A6B-00A5-44DF-98D3-6E3FA9F85D4A",
              "versionEndExcluding": "6.12.23",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E7E864B0-8C00-4679-BA55-659B4C9C3AD3",
              "versionEndExcluding": "6.13.11",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0",
              "versionEndExcluding": "6.14.2",
              "versionStartIncluding": "6.14",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: add mutual exclusion in proc_sctp_do_udp_port()\n\nWe must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start()\nor risk a crash as syzbot reported:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]\nCPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 Not tainted 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025\n RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653\nCall Trace:\n \u003cTASK\u003e\n  udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181\n  sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930\n  proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553\n  proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601\n  iter_file_splice_write+0x91c/0x1150 fs/splice.c:738\n  do_splice_from fs/splice.c:935 [inline]\n  direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158\n  splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102\n  do_splice_direct_actor fs/splice.c:1201 [inline]\n  do_splice_direct+0x174/0x240 fs/splice.c:1227\n  do_sendfile+0xafd/0xe50 fs/read_write.c:1368\n  __do_sys_sendfile64 fs/read_write.c:1429 [inline]\n  __se_sys_sendfile64 fs/read_write.c:1415 [inline]\n  __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sctp: agregar exclusi\u00f3n mutua en proc_sctp_do_udp_port() Debemos serializar las llamadas a sctp_udp_sock_stop() y sctp_udp_sock_start() o corremos el riesgo de un bloqueo como inform\u00f3 syzbot: Oops: error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref en el rango [0x000000000000068-0x000000000000006f] CPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 No contaminado 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(completo) Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/02/2025 RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653 Rastreo de llamadas:  udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181 sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930 proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553 proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601 iter_file_splice_write+0x91c/0x1150 fs/splice.c:738 do_splice_from fs/splice.c:935 [en l\u00ednea] direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [en l\u00ednea] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xafd/0xe50 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1429 [en l\u00ednea] __se_sys_sendfile64 fs/read_write.c:1415 [en l\u00ednea] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [en l\u00ednea]"
    }
  ],
  "id": "CVE-2025-22062",
  "lastModified": "2026-10-15T22:18:14.513",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-22062",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-15T21:44:21.546399Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-04-16T15:15:59.677",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/65ccb2793da7401772a3ffe85355c831b313c59f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b3598f53211ba1025485306de2733bdd241311a3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-22062 (GCVE-0-2025-22062)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2026-10-15 21:51

Title

sctp: add mutual exclusion in proc_sctp_do_udp_port()

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-15 21:44 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6820 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/65ccb2793da740177…
https://git.kernel.org/stable/c/386507cb6fb7cdef5…
https://git.kernel.org/stable/c/b3598f53211ba1025…
https://git.kernel.org/stable/c/e5178bfc55b3a7800…
https://git.kernel.org/stable/c/efb8cb487be8f4ba6…
https://git.kernel.org/stable/c/d3d7675d77622f6ca…
https://git.kernel.org/stable/c/10206302af856791f…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 046c052b475e7119b6a30e3483e2888fc606a2f8 , < 65ccb2793da7401772a3ffe85355c831b313c59f (git) Affected: 046c052b475e7119b6a30e3483e2888fc606a2f8 , < 386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d (git) Affected: 046c052b475e7119b6a30e3483e2888fc606a2f8 , < b3598f53211ba1025485306de2733bdd241311a3 (git) Affected: 046c052b475e7119b6a30e3483e2888fc606a2f8 , < e5178bfc55b3a78000f0f8298e7ade88783ce581 (git) Affected: 046c052b475e7119b6a30e3483e2888fc606a2f8 , < efb8cb487be8f4ba6aaef616011d702d6a083ed1 (git) Affected: 046c052b475e7119b6a30e3483e2888fc606a2f8 , < d3d7675d77622f6ca1aae14c51f80027b36283f8 (git) Affected: 046c052b475e7119b6a30e3483e2888fc606a2f8 , < 10206302af856791fbcc27a33ed3c3eb09b2793d (git)
Linux	Linux	Affected: 5.11 Unaffected: 0 , < 5.11 (semver) Unaffected: 5.15.184 , ≤ 5.15.* (semver) Unaffected: 6.1.140 , ≤ 6.1.* (semver) Unaffected: 6.6.92 , ≤ 6.6.* (semver) Unaffected: 6.12.23 , ≤ 6.12.* (semver) Unaffected: 6.13.11 , ≤ 6.13.* (semver) Unaffected: 6.14.2 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:41:45.338Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-22062",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-15T21:44:21.546399Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-15T21:51:57.395Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sctp/sysctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "65ccb2793da7401772a3ffe85355c831b313c59f",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "b3598f53211ba1025485306de2733bdd241311a3",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "e5178bfc55b3a78000f0f8298e7ade88783ce581",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "efb8cb487be8f4ba6aaef616011d702d6a083ed1",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "d3d7675d77622f6ca1aae14c51f80027b36283f8",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            },
            {
              "lessThan": "10206302af856791fbcc27a33ed3c3eb09b2793d",
              "status": "affected",
              "version": "046c052b475e7119b6a30e3483e2888fc606a2f8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sctp/sysctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.184",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.184",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.140",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.92",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.23",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.11",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.2",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: add mutual exclusion in proc_sctp_do_udp_port()\n\nWe must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start()\nor risk a crash as syzbot reported:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]\nCPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 Not tainted 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025\n RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653\nCall Trace:\n \u003cTASK\u003e\n  udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181\n  sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930\n  proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553\n  proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601\n  iter_file_splice_write+0x91c/0x1150 fs/splice.c:738\n  do_splice_from fs/splice.c:935 [inline]\n  direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158\n  splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102\n  do_splice_direct_actor fs/splice.c:1201 [inline]\n  do_splice_direct+0x174/0x240 fs/splice.c:1227\n  do_sendfile+0xafd/0xe50 fs/read_write.c:1368\n  __do_sys_sendfile64 fs/read_write.c:1429 [inline]\n  __se_sys_sendfile64 fs/read_write.c:1415 [inline]\n  __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The only entry point is a write() (or sendfile()/splice()) to the procfs file /proc/sys/net/sctp/udp_port, handled by proc_sctp_do_udp_port(); no remote peer or network packet can reach this code path.\nAC:L - The attacker creates and controls both sides of the race by issuing two concurrent writes to the same sysctl, and the window spans udp_tunnel_sock_release()\u0027s synchronize_rcu() \u2014 a millisecond-scale gap between reading net-\u003esctp.udp4_sock and clearing it \u2014 making the double release trivially winnable.\nPR:L - The sysctl is per-netns and net_ctl_permissions() grants write access to CAP_NET_ADMIN in the netns\u0027s user_ns, which any unprivileged user obtains with `unshare -Urn`; the file is also owned by the ns root uid via net_ctl_set_ownership().\nUI:N - Exploitation is entirely self-contained in the attacker\u0027s own threads writing to a procfs file; no victim action or cooperation is required.\nS:U - The double free and subsequent memory corruption occur in kernel heap objects within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unserialized sctp_udp_sock_stop() releases the same struct socket twice, producing a use-after-free/double-iput on the socket_alloc slab plus a sock_put() refcount underflow, letting the attacker reallocate the freed object and read back kernel memory contents.\nI:H - The second thread executes kernel_sock_shutdown(), which performs an indirect call via READ_ONCE(sock-\u003eops)-\u003eshutdown on the already-freed struct socket, giving a heap-spray-controlled function pointer and thus a control-flow hijack / arbitrary write primitive.\nA:H - The race reliably produces a kernel oops \u2014 syzbot reported a general protection fault (null-ptr-deref) in kernel_sock_shutdown() from sctp_udp_sock_stop() \u2014 and the double free/refcount underflow crashes or panics the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:56:28.212Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/65ccb2793da7401772a3ffe85355c831b313c59f"
        },
        {
          "url": "https://git.kernel.org/stable/c/386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3598f53211ba1025485306de2733bdd241311a3"
        },
        {
          "url": "https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581"
        },
        {
          "url": "https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1"
        },
        {
          "url": "https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d"
        }
      ],
      "title": "sctp: add mutual exclusion in proc_sctp_do_udp_port()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22062",
    "datePublished": "2025-04-16T14:12:17.605Z",
    "dateReserved": "2024-12-29T08:45:45.813Z",
    "dateUpdated": "2026-10-15T21:51:57.395Z",
    "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.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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