{"cve":"CVE-2022-49709","nvd":{"published":"2025-02-26T07:01:46.710","modified":"2026-06-17T05:18:55.847","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/57cd6d157eb479f0a8e820fd36b7240845c8a937","https://git.kernel.org/stable/c/75f3a5fa2ad049c85ab5d5ee1ed9cfaa7e62c5ed","https://git.kernel.org/stable/c/ca3897f2ac02ceae5e6fa794f83c36f9885b93da"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49709","score":0.00258,"percentile":0.17553,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}