CVE-2026-23119 (GCVE-0-2026-23119)

Vulnerability from cvelistv5 – Published: 2026-02-14 15:09 – Updated: 2026-10-19 18:25
VLAI
Title
bonding: provide a net pointer to __skb_flow_dissect()
Summary
In the Linux kernel, the following vulnerability has been resolved: bonding: provide a net pointer to __skb_flow_dissect() After 3cbf4ffba5ee ("net: plumb network namespace into __skb_flow_dissect") we have to provide a net pointer to __skb_flow_dissect(), either via skb->dev, skb->sk, or a user provided pointer. In the following case, syzbot was able to cook a bare skb. WARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053 Call Trace: <TASK> bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline] __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157 bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline] bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline] bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515 xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388 bpf_prog_run_xdp include/net/xdp.h:700 [inline] bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421 bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390 bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703 __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182 __do_sys_bpf kernel/bpf/syscall.c:6274 [inline] __se_sys_bpf kernel/bpf/syscall.c:6272 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:40 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6637 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 58deb77cc52da9360d20676e68dd215742cbe473 , < 8e53780732ee881394406f79da5263b81eb48f7e (git)
Affected: 58deb77cc52da9360d20676e68dd215742cbe473 , < 3be945abdd228fd00f6afcf8d137002867a4651b (git)
Affected: 58deb77cc52da9360d20676e68dd215742cbe473 , < f4faaa1297ecf3255a8591fff2633df05bd5ec84 (git)
Affected: 58deb77cc52da9360d20676e68dd215742cbe473 , < 0efee0b992f28bd5ee01c7a86ef6a307c42eb907 (git)
Affected: 58deb77cc52da9360d20676e68dd215742cbe473 , < bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa (git)
Affected: 58deb77cc52da9360d20676e68dd215742cbe473 , < de97735a40a144974bf3896ee4cc0270db2e47db (git)
Affected: 58deb77cc52da9360d20676e68dd215742cbe473 , < 5f9b329096596b7e53e07d041d7fca4cbe1be752 (git)
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Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.249 , ≤ 5.10.* (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: provide a net pointer to __skb_flow_dissect()\n\nAfter 3cbf4ffba5ee (\"net: plumb network namespace into __skb_flow_dissect\")\nwe have to provide a net pointer to __skb_flow_dissect(),\neither via skb-\u003edev, skb-\u003esk, or a user provided pointer.\n\nIn the following case, syzbot was able to cook a bare skb.\n\nWARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053\nCall Trace:\n \u003cTASK\u003e\n  bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline]\n  __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157\n  bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline]\n  bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline]\n  bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515\n  xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388\n  bpf_prog_run_xdp include/net/xdp.h:700 [inline]\n  bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421\n  bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390\n  bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703\n  __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182\n  __do_sys_bpf kernel/bpf/syscall.c:6274 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:6272 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbonding: proporcionar un puntero de red a __skb_flow_dissect()\n\nDespu\u00e9s de 3cbf4ffba5ee (\u0027net: integrar el espacio de nombres de red en __skb_flow_dissect\u0027)\ntenemos que proporcionar un puntero de red a __skb_flow_dissect(),\nya sea a trav\u00e9s de skb-\u0026gt;dev, skb-\u0026gt;sk, o un puntero proporcionado por el usuario.\n\nEn el siguiente caso, syzbot pudo \u0027cocinar\u0027 un skb b\u00e1sico.\n\nADVERTENCIA: net/core/flow_dissector.c:1131 en __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053\nTraza de Llamadas:\n \n  bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [en l\u00ednea]\n  __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157\n  bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [en l\u00ednea]\n  bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [en l\u00ednea]\n  bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515\n  xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388\n  bpf_prog_run_xdp include/net/xdp.h:700 [en l\u00ednea]\n  bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421\n  bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390\n  bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703\n  __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182\n  __do_sys_bpf kernel/bpf/syscall.c:6274 [en l\u00ednea]\n  __se_sys_bpf kernel/bpf/syscall.c:6272 [en l\u00ednea]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [en l\u00ednea]\n  do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94"
          }
        ],
        "id": "CVE-2026-23119",
        "lastModified": "2026-10-19T19:17:37.527",
        "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"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-23119",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:40:46.406465Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-02-14T15:16:07.043",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-03T14:59:00+00:00",
      "cve": "CVE-2026-23119",
      "id": "CVE-2026-23119",
      "initial_release_date": "2026-02-14T00:00:00+00:00",
      "product_status:known_affected": "246",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bonding: provide a net pointer to __skb_flow_dissect()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23119.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-23119",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-10T20:40:46.406465Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-476",
                    "description": "CWE-476 NULL Pointer Dereference",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-11T17:37:37.090Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/bonding/bond_main.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "8e53780732ee881394406f79da5263b81eb48f7e",
                  "status": "affected",
                  "version": "58deb77cc52da9360d20676e68dd215742cbe473",
                  "versionType": "git"
                },
                {
                  "lessThan": "3be945abdd228fd00f6afcf8d137002867a4651b",
                  "status": "affected",
                  "version": "58deb77cc52da9360d20676e68dd215742cbe473",
                  "versionType": "git"
                },
                {
                  "lessThan": "f4faaa1297ecf3255a8591fff2633df05bd5ec84",
                  "status": "affected",
                  "version": "58deb77cc52da9360d20676e68dd215742cbe473",
                  "versionType": "git"
                },
                {
                  "lessThan": "0efee0b992f28bd5ee01c7a86ef6a307c42eb907",
                  "status": "affected",
                  "version": "58deb77cc52da9360d20676e68dd215742cbe473",
                  "versionType": "git"
                },
                {
                  "lessThan": "bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa",
                  "status": "affected",
                  "version": "58deb77cc52da9360d20676e68dd215742cbe473",
                  "versionType": "git"
                },
                {
                  "lessThan": "de97735a40a144974bf3896ee4cc0270db2e47db",
                  "status": "affected",
                  "version": "58deb77cc52da9360d20676e68dd215742cbe473",
                  "versionType": "git"
                },
                {
                  "lessThan": "5f9b329096596b7e53e07d041d7fca4cbe1be752",
                  "status": "affected",
                  "version": "58deb77cc52da9360d20676e68dd215742cbe473",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/bonding/bond_main.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.5"
                },
                {
                  "lessThan": "5.5",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.249",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.199",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.162",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.122",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.68",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.18.*",
                  "status": "unaffected",
                  "version": "6.18.8",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.249",
                      "versionStartIncluding": "5.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.199",
                      "versionStartIncluding": "5.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.162",
                      "versionStartIncluding": "5.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.122",
                      "versionStartIncluding": "5.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.68",
                      "versionStartIncluding": "5.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.18.8",
                      "versionStartIncluding": "5.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.19",
                      "versionStartIncluding": "5.5",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: provide a net pointer to __skb_flow_dissect()\n\nAfter 3cbf4ffba5ee (\"net: plumb network namespace into __skb_flow_dissect\")\nwe have to provide a net pointer to __skb_flow_dissect(),\neither via skb-\u003edev, skb-\u003esk, or a user provided pointer.\n\nIn the following case, syzbot was able to cook a bare skb.\n\nWARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053\nCall Trace:\n \u003cTASK\u003e\n  bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline]\n  __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157\n  bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline]\n  bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline]\n  bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515\n  xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388\n  bpf_prog_run_xdp include/net/xdp.h:700 [inline]\n  bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421\n  bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390\n  bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703\n  __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182\n  __do_sys_bpf kernel/bpf/syscall.c:6274 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:6272 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T22:00:29.775Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e"
            },
            {
              "url": "https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b"
            },
            {
              "url": "https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84"
            },
            {
              "url": "https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907"
            },
            {
              "url": "https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa"
            },
            {
              "url": "https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db"
            },
            {
              "url": "https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752"
            }
          ],
          "title": "bonding: provide a net pointer to __skb_flow_dissect()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2026-23119",
        "datePublished": "2026-02-14T15:09:50.517Z",
        "dateReserved": "2026-01-13T15:37:45.969Z",
        "dateUpdated": "2026-10-19T18:25:31.818Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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