{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-49198",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49198",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T01:55:41.631Z",
    "updatedAt": "2026-05-11T18:55:02.040Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "mptcp: Fix crash due to tcp_tsorted_anchor was initialized before release skb",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: Fix crash due to tcp_tsorted_anchor was initialized before release skb\n\nGot crash when doing pressure test of mptcp:\n\n===========================================================================\ndst_release: dst:ffffa06ce6e5c058 refcnt:-1\nkernel tried to execute NX-protected page - exploit attempt? (uid: 0)\nBUG: unable to handle kernel paging request at ffffa06ce6e5c058\nPGD 190a01067 P4D 190a01067 PUD 43fffb067 PMD 22e403063 PTE 8000000226e5c063\nOops: 0011 [#1] SMP PTI\nCPU: 7 PID: 7823 Comm: kworker/7:0 Kdump: loaded Tainted: G            E\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.2.1 04/01/2014\nCall Trace:\n ? skb_release_head_state+0x68/0x100\n ? skb_release_all+0xe/0x30\n ? kfree_skb+0x32/0xa0\n ? mptcp_sendmsg_frag+0x57e/0x750\n ? __mptcp_retrans+0x21b/0x3c0\n ? __switch_to_asm+0x35/0x70\n ? mptcp_worker+0x25e/0x320\n ? process_one_work+0x1a7/0x360\n ? worker_thread+0x30/0x390\n ? create_worker+0x1a0/0x1a0\n ? kthread+0x112/0x130\n ? kthread_flush_work_fn+0x10/0x10\n ? ret_from_fork+0x35/0x40\n===========================================================================\n\nIn __mptcp_alloc_tx_skb skb was allocated and skb->tcp_tsorted_anchor will\nbe initialized, in under memory pressure situation sk_wmem_schedule will\nreturn false and then kfree_skb. In this case skb->_skb_refdst is not null\nbecause_skb_refdst and tcp_tsorted_anchor are stored in the same mem, and\nkfree_skb will try to release dst and cause crash.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "289f2f58266777f45a52cd55dea96d736e6244c9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "af61a8f7603926c26158153d0a0755764d82657c"
            },
            {
              "version": "f70cad1085d1e01d3ec73c1078405f906237feee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "752add6f5ce5305e55d8bda4ac8d69be3a09f14d"
            },
            {
              "version": "f70cad1085d1e01d3ec73c1078405f906237feee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4d54181eba4b077fb74033a7186898ad4000a7a5"
            },
            {
              "version": "f70cad1085d1e01d3ec73c1078405f906237feee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3ef3905aa3b5b3e222ee6eb0210bfd999417a8cc"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.16"
            },
            {
              "version": "5.16.19",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "version": "5.17.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}