{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "6082b6c328b5486da2b356eae94b8b83c98b5565"
            },
            {
              "fixed": "408b6d3bc19c4aa852ab7ee2f447756e52e69967"
            },
            {
              "fixed": "34746b5a84ec37c0ea2bf6808c65c5ed8790eb51"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.9.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93044.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow interpreter fallback for arena-related insns\n\nSince the interpreter does not support the arena-related insns,\ninterpreter fallback should not be allowed for these insns in\ncore.c::__bpf_prog_select_runtime().\n\nCurrently, when the interpreter executes the arena ST/LDX/STX insns,\nit would hit the BUG_ON() in ___bpf_prog_run() at run time.\n\n[    2.579196] BPF interpreter: unknown opcode a2 (imm: 0x0)\n[    2.579998] ------------[ cut here ]------------\n[    2.580652] kernel BUG at kernel/bpf/core.c:2349!\n[    2.581314] Oops: invalid opcode: 0000 [#1] SMP PTI\n\nSet jit_required as true when arena map is used in the prog to disallow\ninterpreter fallback for arena-related insns.",
  "id": "CVE-2026-93044",
  "modified": "2026-09-19T03:30:21.950811719Z",
  "published": "2026-09-17T16:10:36.285Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34746b5a84ec37c0ea2bf6808c65c5ed8790eb51"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/408b6d3bc19c4aa852ab7ee2f447756e52e69967"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93044.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93044"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bpf: Disallow interpreter fallback for arena-related insns"
}