{
  "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-2023-54114",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54114",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-24T13:06:36.214Z",
    "updatedAt": "2026-05-11T19:55:44.834Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment()\n\nAs the call trace shows, skb_panic was caused by wrong skb->mac_header\nin nsh_gso_segment():\n\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI\nCPU: 3 PID: 2737 Comm: syz Not tainted 6.3.0-next-20230505 #1\nRIP: 0010:skb_panic+0xda/0xe0\ncall Trace:\n skb_push+0x91/0xa0\n nsh_gso_segment+0x4f3/0x570\n skb_mac_gso_segment+0x19e/0x270\n __skb_gso_segment+0x1e8/0x3c0\n validate_xmit_skb+0x452/0x890\n validate_xmit_skb_list+0x99/0xd0\n sch_direct_xmit+0x294/0x7c0\n __dev_queue_xmit+0x16f0/0x1d70\n packet_xmit+0x185/0x210\n packet_snd+0xc15/0x1170\n packet_sendmsg+0x7b/0xa0\n sock_sendmsg+0x14f/0x160\n\nThe root cause is:\nnsh_gso_segment() use skb->network_header - nhoff to reset mac_header\nin skb_gso_error_unwind() if inner-layer protocol gso fails.\nHowever, skb->network_header may be reset by inner-layer protocol\ngso function e.g. mpls_gso_segment. skb->mac_header reset by the\ninaccurate network_header will be larger than skb headroom.\n\nnsh_gso_segment\n    nhoff = skb->network_header - skb->mac_header;\n    __skb_pull(skb,nsh_len)\n    skb_mac_gso_segment\n        mpls_gso_segment\n            skb_reset_network_header(skb);//skb->network_header+=nsh_len\n            return -EINVAL;\n    skb_gso_error_unwind\n        skb_push(skb, nsh_len);\n        skb->mac_header = skb->network_header - nhoff;\n        // skb->mac_header > skb->headroom, cause skb_push panic\n\nUse correct mac_offset to restore mac_header and get rid of nhoff.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f88c8d38ecf5ed0273f99a067246899ba499eb2"
            },
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d2309e0cb27b6871b273fbc1725e93be62570d86"
            },
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "435855b0831b351cb72cb38369ee33122ce9574c"
            },
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "02b20e0bc0c2628539e9e518dc342787c3332de2"
            },
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cdd8160dcda1fed2028a5f96575a84afc23aff7d"
            },
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6fbedf987b6b8ed54a50e2205d998eb2c8be72f9"
            },
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cb38e62922aa3991793344b5a5870e7291c74a44"
            },
            {
              "version": "c411ed854584a71b0e86ac3019b60e4789d88086",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c83b49383b595be50647f0c764a48c78b5f3c4f8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.14"
            },
            {
              "version": "4.14.316",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.284",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.244",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.181",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.30",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.3.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "version": "6.4",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}