{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cf68fffb66d60d96209446bfc4a15291dc5a5d41"
            },
            {
              "fixed": "75f3a5fa2ad049c85ab5d5ee1ed9cfaa7e62c5ed"
            },
            {
              "fixed": "ca3897f2ac02ceae5e6fa794f83c36f9885b93da"
            },
            {
              "fixed": "57cd6d157eb479f0a8e820fd36b7240845c8a937"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49709.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncfi: Fix __cfi_slowpath_diag RCU usage with cpuidle\n\nRCU_NONIDLE usage during __cfi_slowpath_diag can result in an invalid\nRCU state in the cpuidle code path:\n\n  WARNING: CPU: 1 PID: 0 at kernel/rcu/tree.c:613 rcu_eqs_enter+0xe4/0x138\n  ...\n  Call trace:\n    rcu_eqs_enter+0xe4/0x138\n    rcu_idle_enter+0xa8/0x100\n    cpuidle_enter_state+0x154/0x3a8\n    cpuidle_enter+0x3c/0x58\n    do_idle.llvm.6590768638138871020+0x1f4/0x2ec\n    cpu_startup_entry+0x28/0x2c\n    secondary_start_kernel+0x1b8/0x220\n    __secondary_switched+0x94/0x98\n\nInstead, call rcu_irq_enter/exit to wake up RCU only when needed and\ndisable interrupts for the entire CFI shadow/module check when we do.",
  "id": "CVE-2022-49709",
  "modified": "2026-04-01T23:10:35.898096732Z",
  "published": "2025-02-26T02:24:26.817Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/57cd6d157eb479f0a8e820fd36b7240845c8a937"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75f3a5fa2ad049c85ab5d5ee1ed9cfaa7e62c5ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca3897f2ac02ceae5e6fa794f83c36f9885b93da"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49709.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49709"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "cfi: Fix __cfi_slowpath_diag RCU usage with cpuidle"
}