CVE-2022-49209 (GCVE-0-2022-49209)
Vulnerability from cvelistv5
Published
2025-02-26 01:55
Modified
2026-05-11 18:55
Severity ?
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: bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full If tcp_bpf_sendmsg() is running while sk msg is full. When sk_msg_alloc() returns -ENOMEM error, tcp_bpf_sendmsg() goes to wait_for_memory. If partial memory has been alloced by sk_msg_alloc(), that is, msg_tx->sg.size is greater than osize after sk_msg_alloc(), memleak occurs. To fix we use sk_msg_trim() to release the allocated memory, then goto wait for memory. Other call paths of sk_msg_alloc() have the similar issue, such as tls_sw_sendmsg(), so handle sk_msg_trim logic inside sk_msg_alloc(), as Cong Wang suggested. This issue can cause the following info: WARNING: CPU: 3 PID: 7950 at net/core/stream.c:208 sk_stream_kill_queues+0xd4/0x1a0 Call Trace: <TASK> inet_csk_destroy_sock+0x55/0x110 __tcp_close+0x279/0x470 tcp_close+0x1f/0x60 inet_release+0x3f/0x80 __sock_release+0x3d/0xb0 sock_close+0x11/0x20 __fput+0x92/0x250 task_work_run+0x6a/0xa0 do_exit+0x33b/0xb60 do_group_exit+0x2f/0xa0 get_signal+0xb6/0x950 arch_do_signal_or_restart+0xac/0x2a0 exit_to_user_mode_prepare+0xa9/0x200 syscall_exit_to_user_mode+0x12/0x30 do_syscall_64+0x46/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae </TASK> WARNING: CPU: 3 PID: 2094 at net/ipv4/af_inet.c:155 inet_sock_destruct+0x13c/0x260 Call Trace: <TASK> __sk_destruct+0x24/0x1f0 sk_psock_destroy+0x19b/0x1c0 process_one_work+0x1b3/0x3c0 kthread+0xe6/0x110 ret_from_fork+0x22/0x30 </TASK>
References
Impacted products
Vendor Product Version
Linux Linux Version: 604326b41a6fb9b4a78b6179335decee0365cd8c
Version: 604326b41a6fb9b4a78b6179335decee0365cd8c
Version: 604326b41a6fb9b4a78b6179335decee0365cd8c
Version: 604326b41a6fb9b4a78b6179335decee0365cd8c
Version: 604326b41a6fb9b4a78b6179335decee0365cd8c
Version: 604326b41a6fb9b4a78b6179335decee0365cd8c
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "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-2022-49209",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:46:55.575336Z",
                "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": "2025-10-01T19:47:06.352Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/skmsg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6d03722c34d9603df325f67c6d30dc1b7b3c6067",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            },
            {
              "lessThan": "bec34a91eba3483e1830c02bdd36f8f968642047",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            },
            {
              "lessThan": "de3a8d8fab0710186f7864ec812836d8d70da3c9",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            },
            {
              "lessThan": "f677328f05f52d535cbdc15cb04476db49477eb4",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            },
            {
              "lessThan": "d0b85dfc6f01d26808e2576c6537c131b590e270",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            },
            {
              "lessThan": "9c34e38c4a870eb30b13f42f5b44f42e9d19ccb8",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/core/skmsg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.189",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.110",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.33",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.19",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.2",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full\n\nIf tcp_bpf_sendmsg() is running while sk msg is full. When sk_msg_alloc()\nreturns -ENOMEM error, tcp_bpf_sendmsg() goes to wait_for_memory. If partial\nmemory has been alloced by sk_msg_alloc(), that is, msg_tx-\u003esg.size is\ngreater than osize after sk_msg_alloc(), memleak occurs. To fix we use\nsk_msg_trim() to release the allocated memory, then goto wait for memory.\n\nOther call paths of sk_msg_alloc() have the similar issue, such as\ntls_sw_sendmsg(), so handle sk_msg_trim logic inside sk_msg_alloc(),\nas Cong Wang suggested.\n\nThis issue can cause the following info:\nWARNING: CPU: 3 PID: 7950 at net/core/stream.c:208 sk_stream_kill_queues+0xd4/0x1a0\nCall Trace:\n \u003cTASK\u003e\n inet_csk_destroy_sock+0x55/0x110\n __tcp_close+0x279/0x470\n tcp_close+0x1f/0x60\n inet_release+0x3f/0x80\n __sock_release+0x3d/0xb0\n sock_close+0x11/0x20\n __fput+0x92/0x250\n task_work_run+0x6a/0xa0\n do_exit+0x33b/0xb60\n do_group_exit+0x2f/0xa0\n get_signal+0xb6/0x950\n arch_do_signal_or_restart+0xac/0x2a0\n exit_to_user_mode_prepare+0xa9/0x200\n syscall_exit_to_user_mode+0x12/0x30\n do_syscall_64+0x46/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n \u003c/TASK\u003e\n\nWARNING: CPU: 3 PID: 2094 at net/ipv4/af_inet.c:155 inet_sock_destruct+0x13c/0x260\nCall Trace:\n \u003cTASK\u003e\n __sk_destruct+0x24/0x1f0\n sk_psock_destroy+0x19b/0x1c0\n process_one_work+0x1b3/0x3c0\n kthread+0xe6/0x110\n ret_from_fork+0x22/0x30\n \u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:55:15.329Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6d03722c34d9603df325f67c6d30dc1b7b3c6067"
        },
        {
          "url": "https://git.kernel.org/stable/c/bec34a91eba3483e1830c02bdd36f8f968642047"
        },
        {
          "url": "https://git.kernel.org/stable/c/de3a8d8fab0710186f7864ec812836d8d70da3c9"
        },
        {
          "url": "https://git.kernel.org/stable/c/f677328f05f52d535cbdc15cb04476db49477eb4"
        },
        {
          "url": "https://git.kernel.org/stable/c/d0b85dfc6f01d26808e2576c6537c131b590e270"
        },
        {
          "url": "https://git.kernel.org/stable/c/9c34e38c4a870eb30b13f42f5b44f42e9d19ccb8"
        }
      ],
      "title": "bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49209",
    "datePublished": "2025-02-26T01:55:47.154Z",
    "dateReserved": "2025-02-26T01:49:39.291Z",
    "dateUpdated": "2026-05-11T18:55:15.329Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49209\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:46:55.575336Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401 Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T16:09:25.995Z\"}}], \"cna\": {\"title\": \"bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"604326b41a6fb9b4a78b6179335decee0365cd8c\", \"lessThan\": \"6d03722c34d9603df325f67c6d30dc1b7b3c6067\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"604326b41a6fb9b4a78b6179335decee0365cd8c\", \"lessThan\": \"bec34a91eba3483e1830c02bdd36f8f968642047\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"604326b41a6fb9b4a78b6179335decee0365cd8c\", \"lessThan\": \"de3a8d8fab0710186f7864ec812836d8d70da3c9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"604326b41a6fb9b4a78b6179335decee0365cd8c\", \"lessThan\": \"f677328f05f52d535cbdc15cb04476db49477eb4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"604326b41a6fb9b4a78b6179335decee0365cd8c\", \"lessThan\": \"d0b85dfc6f01d26808e2576c6537c131b590e270\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"604326b41a6fb9b4a78b6179335decee0365cd8c\", \"lessThan\": \"9c34e38c4a870eb30b13f42f5b44f42e9d19ccb8\", \"versionType\": \"git\"}], \"programFiles\": [\"net/core/skmsg.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.20\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.20\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.189\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/core/skmsg.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/6d03722c34d9603df325f67c6d30dc1b7b3c6067\"}, {\"url\": \"https://git.kernel.org/stable/c/bec34a91eba3483e1830c02bdd36f8f968642047\"}, {\"url\": \"https://git.kernel.org/stable/c/de3a8d8fab0710186f7864ec812836d8d70da3c9\"}, {\"url\": \"https://git.kernel.org/stable/c/f677328f05f52d535cbdc15cb04476db49477eb4\"}, {\"url\": \"https://git.kernel.org/stable/c/d0b85dfc6f01d26808e2576c6537c131b590e270\"}, {\"url\": \"https://git.kernel.org/stable/c/9c34e38c4a870eb30b13f42f5b44f42e9d19ccb8\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full\\n\\nIf tcp_bpf_sendmsg() is running while sk msg is full. When sk_msg_alloc()\\nreturns -ENOMEM error, tcp_bpf_sendmsg() goes to wait_for_memory. If partial\\nmemory has been alloced by sk_msg_alloc(), that is, msg_tx-\u003esg.size is\\ngreater than osize after sk_msg_alloc(), memleak occurs. To fix we use\\nsk_msg_trim() to release the allocated memory, then goto wait for memory.\\n\\nOther call paths of sk_msg_alloc() have the similar issue, such as\\ntls_sw_sendmsg(), so handle sk_msg_trim logic inside sk_msg_alloc(),\\nas Cong Wang suggested.\\n\\nThis issue can cause the following info:\\nWARNING: CPU: 3 PID: 7950 at net/core/stream.c:208 sk_stream_kill_queues+0xd4/0x1a0\\nCall Trace:\\n \u003cTASK\u003e\\n inet_csk_destroy_sock+0x55/0x110\\n __tcp_close+0x279/0x470\\n tcp_close+0x1f/0x60\\n inet_release+0x3f/0x80\\n __sock_release+0x3d/0xb0\\n sock_close+0x11/0x20\\n __fput+0x92/0x250\\n task_work_run+0x6a/0xa0\\n do_exit+0x33b/0xb60\\n do_group_exit+0x2f/0xa0\\n get_signal+0xb6/0x950\\n arch_do_signal_or_restart+0xac/0x2a0\\n exit_to_user_mode_prepare+0xa9/0x200\\n syscall_exit_to_user_mode+0x12/0x30\\n do_syscall_64+0x46/0x80\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\\n \u003c/TASK\u003e\\n\\nWARNING: CPU: 3 PID: 2094 at net/ipv4/af_inet.c:155 inet_sock_destruct+0x13c/0x260\\nCall Trace:\\n \u003cTASK\u003e\\n __sk_destruct+0x24/0x1f0\\n sk_psock_destroy+0x19b/0x1c0\\n process_one_work+0x1b3/0x3c0\\n kthread+0xe6/0x110\\n ret_from_fork+0x22/0x30\\n \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.189\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.110\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.33\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.19\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.2\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"4.20\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:55:15.329Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49209\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:55:15.329Z\", \"dateReserved\": \"2025-02-26T01:49:39.291Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T01:55:47.154Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.