{"cve_id":"CVE-2025-38352","published":"2025-07-22T08:15:23.577000+00:00","last_modified":"2026-09-08T18:17:32.447000+00:00","vuln_status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nposix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()\n\nIf an exiting non-autoreaping task has already passed exit_notify() and\ncalls handle_posix_cpu_timers() from IRQ, it can be reaped by its parent\nor debugger right after unlock_task_sighand().\n\nIf a concurrent posix_cpu_timer_del() runs at that moment, it won't be\nable to detect timer->it.cpu.firing != 0: cpu_timer_task_rcu() and/or\nlock_task_sighand() will fail.\n\nAdd the tsk->exit_state check into run_posix_cpu_timers() to fix this.\n\nThis fix is not needed if CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y, because\nexit_task_work() is called before exit_notify(). But the check still\nmakes sense, task_work_add(&tsk->posix_cputimers_work.work) will fail\nanyway in this case.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","base_score":7.8,"base_severity":"HIGH","attack_vector":"LOCAL","privileges_req":"LOW","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-367"],"in_kev":true,"kev_date_added":"2025-09-04","kev_ransomware":false,"epss_score":0.01357,"epss_percentile":0.7167,"cap_rule_version":"0.1.1","stage":"PRIV_ESC","req_access":"USER","req_vector":"LOCAL","req_user_interaction":false,"grant_access":"PRIV","caps":["CODE_EXEC","PRIV_GAIN"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T11:41:25.639182+00:00","first_seen":"2025-07-22T08:15:23.577000+00:00","kev_first_seen":"2025-09-04T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["debian","linux"],"products":["debian_linux","linux_kernel"],"affected":[{"vendor":"debian","product":"debian_linux","ranges":["11.0"]},{"vendor":"linux","product":"linux_kernel","ranges":["≥ 5.5 and < 5.10.239","≥ 5.11 and < 5.15.186","≥ 5.16 and < 6.1.142","≥ 2.6.36 and < 5.4.295","≥ 6.7 and < 6.12.34","≥ 6.13 and < 6.15.3","6.16","≥ 6.2 and < 6.6.94"]}]}