{
  "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-2026-98925",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98925",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-23T12:05:53.207Z",
    "updatedAt": "2026-10-23T12:05:53.207Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "bpf, sockmap: Fix self-redirect copied_seq double-counting",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix self-redirect copied_seq double-counting\n\nWhen a BPF stream_verdict program redirects an skb back to the same\nsocket (self-redirect with BPF_F_INGRESS), sk_psock_verdict_apply()\ncalls tcp_eat_skb() which advances tcp_sk->copied_seq. However, the\nskb is then delivered to the socket's psock ingress queue and later\nread by tcp_bpf_recvmsg_parser(), which also advances copied_seq via\nthe copied_from_self accounting path. This double-counting causes\ncopied_seq to advance by 2x the actual data length, triggering:\n\n  TCP recvmsg seq # bug 2: copied BF2E806, seq BF2E7FD, \\\n\t\t\t   rcvnxt BF2E806, fl 0\n  WARNING: net/ipv4/tcp.c:2745 at tcp_recvmsg_locked+0x72b/0x2640\n  Call Trace:\n   tcp_recvmsg+0x10a/0x500\n   sock_recvmsg+0x168/0x1d0\n   __sys_recvfrom+0x19a/0x2a0\n   __x64_sys_recvfrom+0xe4/0x1f0\n   do_syscall_64+0xf7/0x530\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n  cleanup rbuf bug: copied BF2E806 seq BF2E806 rcvnxt BF2E806\n  WARNING: net/ipv4/tcp.c:1609 at tcp_cleanup_rbuf+0xf2/0x1c0\n  Call Trace:\n   tcp_recvmsg_locked+0x8d1/0x2640\n   tcp_recvmsg+0x10a/0x500\n   sock_recvmsg+0x168/0x1d0\n   __sys_recvfrom+0x19a/0x2a0\n   __x64_sys_recvfrom+0xe4/0x1f0\n   do_syscall_64+0xf7/0x530\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFix this by converting self-redirect verdict to __SK_PASS at the\nbeginning of sk_psock_verdict_apply(). This bypasses the\n__SK_REDIRECT case entirely (which calls sk_psock_eat_skb), letting\nthe __SK_PASS path queue the skb to the psock ingress queue. The\ndata is then read via tcp_bpf_recvmsg_parser(), which advances\ncopied_seq exactly once through copied_from_self. Cross-socket\nredirects continue through __SK_REDIRECT with sk_psock_eat_skb()\nunchanged.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fe735073a50eaa71aceb2e990827fe26f33cddd6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cf9aefb26a071cb8b6fdd761c27e022a1184946d"
            },
            {
              "version": "e5c6de5fa025882babf89cecbed80acf49b987fa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dc98def81e3c629e25fcdd5753b1db93aab27ce9"
            },
            {
              "version": "e5c6de5fa025882babf89cecbed80acf49b987fa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ef6f2182fee6b9721c005ccfc6aec0a47f79bbfa"
            },
            {
              "version": "e5c6de5fa025882babf89cecbed80acf49b987fa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ae1ffd04e98beefbe5d83335d506b0bcd5c2a6b3"
            },
            {
              "version": "e5c6de5fa025882babf89cecbed80acf49b987fa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "88942054191185c6f8bea5568cbb5614d1e99af9"
            },
            {
              "version": "e5c6de5fa025882babf89cecbed80acf49b987fa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "490a83d6386eec1d29f470c8d7331677fb46c3b7"
            },
            {
              "version": "f9b4a0b537be7a6e5f002ca64b09dcca9c14e6ed",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.1.32",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.189"
            },
            {
              "version": "6.3.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.4"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.55",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}