{
  "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-2022-48906",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-48906",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2024-08-22T01:30:40.850Z",
    "updatedAt": "2026-05-23T15:21:02.336Z",
    "importedAt": "2026-10-24T01:56:45.230Z",
    "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: Correctly set DATA_FIN timeout when number of retransmits is large",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: Correctly set DATA_FIN timeout when number of retransmits is large\n\nSyzkaller with UBSAN uncovered a scenario where a large number of\nDATA_FIN retransmits caused a shift-out-of-bounds in the DATA_FIN\ntimeout calculation:\n\n================================================================================\nUBSAN: shift-out-of-bounds in net/mptcp/protocol.c:470:29\nshift exponent 32 is too large for 32-bit type 'unsigned int'\nCPU: 1 PID: 13059 Comm: kworker/1:0 Not tainted 5.17.0-rc2-00630-g5fbf21c90c60 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nWorkqueue: events mptcp_worker\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n ubsan_epilogue+0xb/0x5a lib/ubsan.c:151\n __ubsan_handle_shift_out_of_bounds.cold+0xb2/0x20e lib/ubsan.c:330\n mptcp_set_datafin_timeout net/mptcp/protocol.c:470 [inline]\n __mptcp_retrans.cold+0x72/0x77 net/mptcp/protocol.c:2445\n mptcp_worker+0x58a/0xa70 net/mptcp/protocol.c:2528\n process_one_work+0x9df/0x16d0 kernel/workqueue.c:2307\n worker_thread+0x95/0xe10 kernel/workqueue.c:2454\n kthread+0x2f4/0x3b0 kernel/kthread.c:377\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295\n </TASK>\n================================================================================\n\nThis change limits the maximum timeout by limiting the size of the\nshift, which keeps all intermediate values in-bounds.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6477dd39e62c3a67cfa368ddc127410b4ae424c6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0c3f34beb459753f9f80d0cc14c1b50ab615c631"
            },
            {
              "version": "6477dd39e62c3a67cfa368ddc127410b4ae424c6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "03ae283bd71f761feae3f402668d698b393b0e79"
            },
            {
              "version": "6477dd39e62c3a67cfa368ddc127410b4ae424c6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "877d11f0332cd2160e19e3313e262754c321fa36"
            },
            {
              "version": "0af76111c2a6326e4bb56f64a6e453c6ec6dd2da",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.12.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.13"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.13"
            },
            {
              "version": "5.15.27",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.16.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "version": "5.17",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}