bpf: Disallow interpreter fallback for gotox insn

{
  "id": "13f42227e84934f8b8aa07c200e830dfe4334d8c95159dabeab71ad9d8cbaacc",
  "url": "https://osv.dev/vulnerability/CVE-2026-93043",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "bpf: Disallow interpreter fallback for gotox insn",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow interpreter fallback for gotox insn The interpreter does not recognize the BPF_JMP|BPF_JA|BPF_X insn, which is used for insn_array map. Thereafter, it would hit the BUG_ON() in ___bpf_prog_run() at run time. [ 2.563726] BPF interpreter: unknown opcode 0d (imm: 0x0) [ 2.564557] ------------[ cut here ]------------ [ 2.565206] kernel BUG at kernel/bpf/core.c:2349! [ 2.565882] Oops: invalid opcode: 0000 [#1] SMP PTI Set jit_required as true when insn_array map is used in the prog in order to disallow interpreter fallback for gotox insn in core.c::__bpf_prog_select_runtime().",
    "evidence": "osv:CVE-2026-93043",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-93043",
      "aliases": [
        "CVE-2026-93043"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "493d9e0d608339a32f568504d5fd411a261bb0af"
                },
                {
                  "fixed": "17da80d0c7b56579476b6644120bcfea778e531a"
                },
                {
                  "fixed": "905f716362e1186c1a23447ca279e6d21f795cdb"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93043.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93043.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.230764440Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/17da80d0c7b56579476b6644120bcfea778e531a",
        "https://git.kernel.org/stable/c/905f716362e1186c1a23447ca279e6d21f795cdb",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93043.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93043",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93043.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-93043",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 506813,
  "published_at": "2026-09-17T16:10:35.602+00:00"
}