{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "16d9c5660692d6f0e6aba367274de2b6dfd4343c"
            },
            {
              "fixed": "976f1be72740cfbc351d3841fd21186dda3ea723"
            },
            {
              "fixed": "00244bdaa423d93f4571f3f6854378ce3365e524"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90299.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix sleepable check for tracing/lsm prog\n\nWhen CONFIG_FUNCTION_ERROR_INJECTION is disabled, a sleepable tracing prog\nis allowed to attach to '__x64_'-alike prefix symbols.\n\nIt is because the verifier does not verify whether the symbol is a kernel\nfunction or a bpf prog. That said, a sleepable tracing prog is allowed to\nattach to a bpf prog target whose name has '__x64_'-alike prefix.\n\nFor example, a sleepable fentry prog attaches to a '__x64_sys_nop' XDP\nprog, and copies buffer from a user pointer with bpf_copy_from_user()\nhelper. After attaching the XDP prog to lo interface, the kernel BUG\ncould be triggered by 'ping -c 1 -W 1 127.0.0.1':\n\n[    3.460756] BUG: sleeping function called from invalid context at kernel/bpf/trampoline.c:1324\n\nFix it by disallowing sleepable prog always when its target\nbtf is not a kernel's btf.",
  "id": "CVE-2026-90299",
  "modified": "2026-09-19T03:31:04.751551330Z",
  "published": "2026-09-17T16:08:23.888Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00244bdaa423d93f4571f3f6854378ce3365e524"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/976f1be72740cfbc351d3841fd21186dda3ea723"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90299.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90299"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bpf: Fix sleepable check for tracing/lsm prog"
}