{
  "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-2026-31552",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31552",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-24T14:33:19.065Z",
    "updatedAt": "2026-08-05T12:23:26.516Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "wifi: wlcore: Return -ENOMEM instead of -EAGAIN if there is not enough headroom",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wlcore: Return -ENOMEM instead of -EAGAIN if there is not enough headroom\n\nSince upstream commit e75665dd0968 (\"wifi: wlcore: ensure skb headroom\nbefore skb_push\"), wl1271_tx_allocate() and with it\nwl1271_prepare_tx_frame() returns -EAGAIN if pskb_expand_head() fails.\nHowever, in wlcore_tx_work_locked(), a return value of -EAGAIN from\nwl1271_prepare_tx_frame() is interpreted as the aggregation buffer being\nfull. This causes the code to flush the buffer, put the skb back at the\nhead of the queue, and immediately retry the same skb in a tight while\nloop.\n\nBecause wlcore_tx_work_locked() holds wl->mutex, and the retry happens\nimmediately with GFP_ATOMIC, this will result in an infinite loop and a\nCPU soft lockup. Return -ENOMEM instead so the packet is dropped and\nthe loop terminates.\n\nThe problem was found by an experimental code review agent based on\ngemini-3.1-pro while reviewing backports into v6.18.y.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "88295a55fefe5414e64293638b6f7549646e58ed",
              "status": "affected",
              "versionType": "git",
              "lessThan": "980f793645540ca7a6318165cc12f49d5febeb99"
            },
            {
              "version": "cd89a4656c03f8db0c57350aaec69cd3cfaa3522",
              "status": "affected",
              "versionType": "git",
              "lessThan": "12f9eef39e49716c763714bfda835a733d5f6dea"
            },
            {
              "version": "745a0810dbc96a0471e5f5e627ba1e978c3116d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ceb46b40b021d21911ff8608ce4ed33c1264ad2f"
            },
            {
              "version": "b167312390fdd461c81ead516f2b0b44e83a9edb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a6dc74209462c4fe5a88718d2f3a5286886081c8"
            },
            {
              "version": "71de0b6e04bbee5575caf9a1e4d424e7dcc50018",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cfa64e2b3717be1da7c4c1aff7268a009e8c1610"
            },
            {
              "version": "689a7980e4788e13e766763d53569fb78dea2513",
              "status": "affected",
              "versionType": "git",
              "lessThan": "46c670ff1ff466e5eccb3940f726586473dc053c"
            },
            {
              "version": "e75665dd096819b1184087ba5718bd93beafff51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f2c06d718a7b85cbc59ceaa2ff3f46b178ac709c"
            },
            {
              "version": "e75665dd096819b1184087ba5718bd93beafff51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "deb353d9bb009638b7762cae2d0b6e8fdbb41a69"
            },
            {
              "version": "5.10.250",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.253"
            },
            {
              "version": "5.15.200",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.203"
            },
            {
              "version": "6.1.163",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.167"
            },
            {
              "version": "6.6.124",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.130"
            },
            {
              "version": "6.12.70",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.78"
            },
            {
              "version": "6.18.10",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.20"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.19"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.167",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.78",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.20",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}