CVE-2024-57841 (GCVE-0-2024-57841)

Vulnerability from cvelistv5 – Published: 2025-01-15 13:10 – Updated: 2026-05-23 15:56
VLAI
Title
net: fix memory leak in tcp_conn_request()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fix memory leak in tcp_conn_request() If inet_csk_reqsk_queue_hash_add() return false, tcp_conn_request() will return without free the dst memory, which allocated in af_ops->route_req. Here is the kmemleak stack: unreferenced object 0xffff8881198631c0 (size 240): comm "softirq", pid 0, jiffies 4299266571 (age 1802.392s) hex dump (first 32 bytes): 00 10 9b 03 81 88 ff ff 80 98 da bc ff ff ff ff ................ 81 55 18 bb ff ff ff ff 00 00 00 00 00 00 00 00 .U.............. backtrace: [<ffffffffb93e8d4c>] kmem_cache_alloc+0x60c/0xa80 [<ffffffffba11b4c5>] dst_alloc+0x55/0x250 [<ffffffffba227bf6>] rt_dst_alloc+0x46/0x1d0 [<ffffffffba23050a>] __mkroute_output+0x29a/0xa50 [<ffffffffba23456b>] ip_route_output_key_hash+0x10b/0x240 [<ffffffffba2346bd>] ip_route_output_flow+0x1d/0x90 [<ffffffffba254855>] inet_csk_route_req+0x2c5/0x500 [<ffffffffba26b331>] tcp_conn_request+0x691/0x12c0 [<ffffffffba27bd08>] tcp_rcv_state_process+0x3c8/0x11b0 [<ffffffffba2965c6>] tcp_v4_do_rcv+0x156/0x3b0 [<ffffffffba299c98>] tcp_v4_rcv+0x1cf8/0x1d80 [<ffffffffba239656>] ip_protocol_deliver_rcu+0xf6/0x360 [<ffffffffba2399a6>] ip_local_deliver_finish+0xe6/0x1e0 [<ffffffffba239b8e>] ip_local_deliver+0xee/0x360 [<ffffffffba239ead>] ip_rcv+0xad/0x2f0 [<ffffffffba110943>] __netif_receive_skb_one_core+0x123/0x140 Call dst_release() to free the dst memory when inet_csk_reqsk_queue_hash_add() return false in tcp_conn_request().
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:54 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 527bec1f56ac7a2fceb8eb77eb0fc2678ecba394 , < 9d38959677291552d1b0ed2689a540af279b5bf8 (git)
Affected: c14f3c3793f7a785763e353df7fc40426187f832 , < de3f999bf8aee16e9da1c1224191abdc69e97c9d (git)
Affected: fdae4d139f4778b20a40c60705c53f5f146459b5 , < 2af69905180b3fea12f9c1db374b153a06977021 (git)
Affected: ff46e3b4421923937b7f6e44ffcd3549a074f321 , < b0b190218c78d8aeecfba36ea3a90063b3ede52d (git)
Affected: ff46e3b4421923937b7f6e44ffcd3549a074f321 , < 4f4aa4aa28142d53f8b06585c478476cfe325cfc (git)
Affected: 360892e60710427229fc1f7bb2218cf4d578229b (git)
Affected: 5.15.162 , < 5.15.176 (semver)
Affected: 6.1.97 , < 6.1.124 (semver)
Affected: 6.6.37 , < 6.6.70 (semver)
Affected: 6.9.8 , < 6.10 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 5.15.176 , ≤ 5.15.* (semver)
Unaffected: 6.1.124 , ≤ 6.1.* (semver)
Unaffected: 6.6.70 , ≤ 6.6.* (semver)
Unaffected: 6.12.9 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix memory leak in tcp_conn_request()\n\nIf inet_csk_reqsk_queue_hash_add() return false, tcp_conn_request() will\nreturn without free the dst memory, which allocated in af_ops-\u003eroute_req.\n\nHere is the kmemleak stack:\n\nunreferenced object 0xffff8881198631c0 (size 240):\n  comm \"softirq\", pid 0, jiffies 4299266571 (age 1802.392s)\n  hex dump (first 32 bytes):\n    00 10 9b 03 81 88 ff ff 80 98 da bc ff ff ff ff  ................\n    81 55 18 bb ff ff ff ff 00 00 00 00 00 00 00 00  .U..............\n  backtrace:\n    [\u003cffffffffb93e8d4c\u003e] kmem_cache_alloc+0x60c/0xa80\n    [\u003cffffffffba11b4c5\u003e] dst_alloc+0x55/0x250\n    [\u003cffffffffba227bf6\u003e] rt_dst_alloc+0x46/0x1d0\n    [\u003cffffffffba23050a\u003e] __mkroute_output+0x29a/0xa50\n    [\u003cffffffffba23456b\u003e] ip_route_output_key_hash+0x10b/0x240\n    [\u003cffffffffba2346bd\u003e] ip_route_output_flow+0x1d/0x90\n    [\u003cffffffffba254855\u003e] inet_csk_route_req+0x2c5/0x500\n    [\u003cffffffffba26b331\u003e] tcp_conn_request+0x691/0x12c0\n    [\u003cffffffffba27bd08\u003e] tcp_rcv_state_process+0x3c8/0x11b0\n    [\u003cffffffffba2965c6\u003e] tcp_v4_do_rcv+0x156/0x3b0\n    [\u003cffffffffba299c98\u003e] tcp_v4_rcv+0x1cf8/0x1d80\n    [\u003cffffffffba239656\u003e] ip_protocol_deliver_rcu+0xf6/0x360\n    [\u003cffffffffba2399a6\u003e] ip_local_deliver_finish+0xe6/0x1e0\n    [\u003cffffffffba239b8e\u003e] ip_local_deliver+0xee/0x360\n    [\u003cffffffffba239ead\u003e] ip_rcv+0xad/0x2f0\n    [\u003cffffffffba110943\u003e] __netif_receive_skb_one_core+0x123/0x140\n\nCall dst_release() to free the dst memory when\ninet_csk_reqsk_queue_hash_add() return false in tcp_conn_request()."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: se corrige p\u00e9rdida de memoria en tcp_conn_request() Si inet_csk_reqsk_queue_hash_add() devuelve falso, tcp_conn_request() devolver\u00e1 sin liberar la memoria dst, que se asign\u00f3 en af_ops-\u0026gt;route_req. Aqu\u00ed est\u00e1 la pila de kmemleak: objeto sin referencia 0xffff8881198631c0 (tama\u00f1o 240): comm \"softirq\", pid 0, jiffies 4299266571 (edad 1802.392s) volcado hexadecimal (primeros 32 bytes): 00 10 9b 03 81 88 ff ff 80 98 da bc ff ff ff ff ff ................ 81 55 18 bb ff ff ff ff ff 00 00 00 00 00 00 00 00 .U.............. backtrace: [] kmem_cache_alloc+0x60c/0xa80 [] dst_alloc+0x55/0x250 [] rt_dst_alloc+0x46/0x1d0 [] __mkroute_output+0x29a/0xa50 [] ip_route_output_key_hash+0x10b/0x240 [] ip_route_output_flow+0x1d/0x90 [] inet_csk_route_req+0x2c5/0x500 [] tcp_conn_request+0x691/0x12c0 [] tcp_rcv_state_process+0x3c8/0x11b0 [] tcp_v4_do_rcv+0x156/0x3b0 [] tcp_v4_rcv+0x1cf8/0x1d80 [] ip_protocol_deliver_rcu+0xf6/0x360 [] ip_local_deliver_finish+0xe6/0x1e0 [] ip_local_deliver+0xee/0x360 [] ip_rcv+0xad/0x2f0 [] __netif_receive_skb_one_core+0x123/0x140 Llame a dst_release() para liberar la memoria dst cuando inet_csk_reqsk_queue_hash_add() devuelva falso en tcp_conn_request()."
          }
        ],
        "id": "CVE-2024-57841",
        "lastModified": "2026-06-17T08:14:05.833",
        "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"
            },
            {
              "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-57841",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:54:23.329434Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-01-15T13:15:12.130",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2af69905180b3fea12f9c1db374b153a06977021"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4f4aa4aa28142d53f8b06585c478476cfe325cfc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9d38959677291552d1b0ed2689a540af279b5bf8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b0b190218c78d8aeecfba36ea3a90063b3ede52d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/de3f999bf8aee16e9da1c1224191abdc69e97c9d"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:51:37+00:00",
      "cve": "CVE-2024-57841",
      "id": "CVE-2024-57841",
      "initial_release_date": "2024-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "234",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: fix memory leak in tcp_conn_request()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-57841.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "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"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-57841",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T19:54:23.329434Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-401",
                    "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-10-01T15:54:34.176Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "net/ipv4/tcp_input.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "9d38959677291552d1b0ed2689a540af279b5bf8",
                  "status": "affected",
                  "version": "527bec1f56ac7a2fceb8eb77eb0fc2678ecba394",
                  "versionType": "git"
                },
                {
                  "lessThan": "de3f999bf8aee16e9da1c1224191abdc69e97c9d",
                  "status": "affected",
                  "version": "c14f3c3793f7a785763e353df7fc40426187f832",
                  "versionType": "git"
                },
                {
                  "lessThan": "2af69905180b3fea12f9c1db374b153a06977021",
                  "status": "affected",
                  "version": "fdae4d139f4778b20a40c60705c53f5f146459b5",
                  "versionType": "git"
                },
                {
                  "lessThan": "b0b190218c78d8aeecfba36ea3a90063b3ede52d",
                  "status": "affected",
                  "version": "ff46e3b4421923937b7f6e44ffcd3549a074f321",
                  "versionType": "git"
                },
                {
                  "lessThan": "4f4aa4aa28142d53f8b06585c478476cfe325cfc",
                  "status": "affected",
                  "version": "ff46e3b4421923937b7f6e44ffcd3549a074f321",
                  "versionType": "git"
                },
                {
                  "status": "affected",
                  "version": "360892e60710427229fc1f7bb2218cf4d578229b",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "net/ipv4/tcp_input.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.10"
                },
                {
                  "lessThan": "6.10",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.176",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.124",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.70",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.9",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.13",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.176",
                      "versionStartIncluding": "5.15.162",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.124",
                      "versionStartIncluding": "6.1.97",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.70",
                      "versionStartIncluding": "6.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.9",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "6.9.8",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix memory leak in tcp_conn_request()\n\nIf inet_csk_reqsk_queue_hash_add() return false, tcp_conn_request() will\nreturn without free the dst memory, which allocated in af_ops-\u003eroute_req.\n\nHere is the kmemleak stack:\n\nunreferenced object 0xffff8881198631c0 (size 240):\n  comm \"softirq\", pid 0, jiffies 4299266571 (age 1802.392s)\n  hex dump (first 32 bytes):\n    00 10 9b 03 81 88 ff ff 80 98 da bc ff ff ff ff  ................\n    81 55 18 bb ff ff ff ff 00 00 00 00 00 00 00 00  .U..............\n  backtrace:\n    [\u003cffffffffb93e8d4c\u003e] kmem_cache_alloc+0x60c/0xa80\n    [\u003cffffffffba11b4c5\u003e] dst_alloc+0x55/0x250\n    [\u003cffffffffba227bf6\u003e] rt_dst_alloc+0x46/0x1d0\n    [\u003cffffffffba23050a\u003e] __mkroute_output+0x29a/0xa50\n    [\u003cffffffffba23456b\u003e] ip_route_output_key_hash+0x10b/0x240\n    [\u003cffffffffba2346bd\u003e] ip_route_output_flow+0x1d/0x90\n    [\u003cffffffffba254855\u003e] inet_csk_route_req+0x2c5/0x500\n    [\u003cffffffffba26b331\u003e] tcp_conn_request+0x691/0x12c0\n    [\u003cffffffffba27bd08\u003e] tcp_rcv_state_process+0x3c8/0x11b0\n    [\u003cffffffffba2965c6\u003e] tcp_v4_do_rcv+0x156/0x3b0\n    [\u003cffffffffba299c98\u003e] tcp_v4_rcv+0x1cf8/0x1d80\n    [\u003cffffffffba239656\u003e] ip_protocol_deliver_rcu+0xf6/0x360\n    [\u003cffffffffba2399a6\u003e] ip_local_deliver_finish+0xe6/0x1e0\n    [\u003cffffffffba239b8e\u003e] ip_local_deliver+0xee/0x360\n    [\u003cffffffffba239ead\u003e] ip_rcv+0xad/0x2f0\n    [\u003cffffffffba110943\u003e] __netif_receive_skb_one_core+0x123/0x140\n\nCall dst_release() to free the dst memory when\ninet_csk_reqsk_queue_hash_add() return false in tcp_conn_request()."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T13:01:26.346Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/9d38959677291552d1b0ed2689a540af279b5bf8"
            },
            {
              "url": "https://git.kernel.org/stable/c/de3f999bf8aee16e9da1c1224191abdc69e97c9d"
            },
            {
              "url": "https://git.kernel.org/stable/c/2af69905180b3fea12f9c1db374b153a06977021"
            },
            {
              "url": "https://git.kernel.org/stable/c/b0b190218c78d8aeecfba36ea3a90063b3ede52d"
            },
            {
              "url": "https://git.kernel.org/stable/c/4f4aa4aa28142d53f8b06585c478476cfe325cfc"
            }
          ],
          "title": "net: fix memory leak in tcp_conn_request()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-57841",
        "datePublished": "2025-01-15T13:10:26.842Z",
        "dateReserved": "2025-01-15T13:08:59.716Z",
        "dateUpdated": "2025-10-01T19:57:18.572Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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