{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  bpf: Disallow interpreter fallback for BPF_ADDR_PERCPU insn  The BPF_MOV64_PERCPU_REG insn requires JIT to emit native code to for 'dst_reg = src_reg + \u003cpercpu_base_off\u003e'.  However, the interpreter ignores the 'off' at its ALU64_MOV_X label. The 'off' indicates the insn is BPF_MOV64_PERCPU_REG insn. Then, when the interpreter loads memory from the register, it will hit a page fault.  [    2.545572] BUG: unable to handle page fault for address: ffffffffacaaf034 [    2.546485] #PF: supervisor read access in kernel mode [    2.547167] #PF: error_code(0x0000) - not-present page [    2.547850] PGD 134e63067 P4D 134e63067 PUD 134e64063 PMD 10021c063 PTE 800ffffeca550062 [    2.548912] Oops: Oops: 0000 [#1] SMP PTI  Set jit_required as true in order to disallow interpreter fallback in core.c::__bpf_prog_select_runtime(), if any BPF_ADDR_PERCPU insn is patched to the prog.  BTW, rename the helper bpf_map_supports_cpu_flags() to bpf_map_is_percpu_map().",
  "id": "DEBIAN-CVE-2026-93270",
  "modified": "2026-09-25T04:47:28.486273802Z",
  "published": "2026-09-24T16:17:24.020Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-93270"
    }
  ],
  "upstream": [
    "CVE-2026-93270"
  ]
}