{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38352", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.006Z", "datePublished": "2025-07-22T08:04:25.277Z", "dateUpdated": "2025-07-28T04:19:41.105Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-28T04:19:41.105Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/time/posix-cpu-timers.c"], "versions": [{"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "78a4b8e3795b31dae58762bc091bb0f4f74a2200", "status": "affected", "versionType": "git"}, {"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "c076635b3a42771ace7d276de8dc3bc76ee2ba1b", "status": "affected", "versionType": "git"}, {"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "2f3daa04a9328220de46f0d5c919a6c0073a9f0b", "status": "affected", "versionType": "git"}, {"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "764a7a5dfda23f69919441f2eac2a83e7db6e5bb", "status": "affected", "versionType": "git"}, {"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "2c72fe18cc5f9f1750f5bc148cf1c94c29e106ff", "status": "affected", "versionType": "git"}, {"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "c29d5318708e67ac13c1b6fc1007d179fb65b4d7", "status": "affected", "versionType": "git"}, {"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "460188bc042a3f40f72d34b9f7fc6ee66b0b757b", "status": "affected", "versionType": "git"}, {"version": "0bdd2ed4138ec04e09b4f8165981efc99e439f55", "lessThan": "f90fff1e152dedf52b932240ebbd670d83330eca", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/time/posix-cpu-timers.c"], "versions": [{"version": "2.6.36", "status": "affected"}, {"version": "0", "lessThan": "2.6.36", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.295", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.239", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.186", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.142", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.94", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.34", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.3", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "5.4.295"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "5.10.239"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "5.15.186"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "6.1.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "6.6.94"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "6.12.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "6.15.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.36", "versionEndExcluding": "6.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/78a4b8e3795b31dae58762bc091bb0f4f74a2200"}, {"url": "https://git.kernel.org/stable/c/c076635b3a42771ace7d276de8dc3bc76ee2ba1b"}, {"url": "https://git.kernel.org/stable/c/2f3daa04a9328220de46f0d5c919a6c0073a9f0b"}, {"url": "https://git.kernel.org/stable/c/764a7a5dfda23f69919441f2eac2a83e7db6e5bb"}, {"url": "https://git.kernel.org/stable/c/2c72fe18cc5f9f1750f5bc148cf1c94c29e106ff"}, {"url": "https://git.kernel.org/stable/c/c29d5318708e67ac13c1b6fc1007d179fb65b4d7"}, {"url": "https://git.kernel.org/stable/c/460188bc042a3f40f72d34b9f7fc6ee66b0b757b"}, {"url": "https://git.kernel.org/stable/c/f90fff1e152dedf52b932240ebbd670d83330eca"}], "title": "posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: posix-cpu-timers: corregir la ejecuci\u00f3n entre handle_posix_cpu_timers() y posix_cpu_timer_del(). Si una tarea no autorecuperadora que est\u00e1 saliendo ya ha pasado exit_notify() y llama a handle_posix_cpu_timers() desde IRQ, puede ser recuperada por su padre o depurador justo despu\u00e9s de unlock_task_sighand(). Si en ese momento se ejecuta un posix_cpu_timer_del() concurrente, no podr\u00e1 detectar timer->it.cpu.firing != 0: cpu_timer_task_rcu() y/o lock_task_sighand() fallar\u00e1n. Agregue la verificaci\u00f3n tsk->exit_state en run_posix_cpu_timers() para corregir esto. Esta correcci\u00f3n no es necesaria si CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y, porque exit_task_work() se llama antes de exit_notify(). Pero la verificaci\u00f3n sigue teniendo sentido, task_work_add(&tsk->posix_cputimers_work.work) fallar\u00e1 de todos modos en este caso."}], "id": "CVE-2025-38352", "lastModified": "2025-07-22T13:05:40.573", "metrics": {}, "published": "2025-07-22T08:15:23.577", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c72fe18cc5f9f1750f5bc148cf1c94c29e106ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f3daa04a9328220de46f0d5c919a6c0073a9f0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/460188bc042a3f40f72d34b9f7fc6ee66b0b757b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/764a7a5dfda23f69919441f2eac2a83e7db6e5bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/78a4b8e3795b31dae58762bc091bb0f4f74a2200"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c076635b3a42771ace7d276de8dc3bc76ee2ba1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c29d5318708e67ac13c1b6fc1007d179fb65b4d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f90fff1e152dedf52b932240ebbd670d83330eca"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()", "id": "2382581", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2382581"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nposix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()\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().\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.\nAdd the tsk->exit_state check into run_posix_cpu_timers() to fix this.\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."], "name": "CVE-2025-38352", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38352\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38352\nhttps://lore.kernel.org/linux-cve-announce/2025072229-CVE-2025-38352-f1de@gregkh/T"], "threat_severity": "Moderate"}