{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71180", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-31T11:36:51.183Z", "datePublished": "2026-01-31T11:38:52.481Z", "dateUpdated": "2026-05-11T21:56:12.391Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:56:12.391Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncounter: interrupt-cnt: Drop IRQF_NO_THREAD flag\n\nAn IRQ handler can either be IRQF_NO_THREAD or acquire spinlock_t, as\nCONFIG_PROVE_RAW_LOCK_NESTING warns:\n=============================\n[ BUG: Invalid wait context ]\n6.18.0-rc1+git... #1\n-----------------------------\nsome-user-space-process/1251 is trying to lock:\n(&counter->events_list_lock){....}-{3:3}, at: counter_push_event [counter]\nother info that might help us debug this:\ncontext-{2:2}\nno locks held by some-user-space-process/....\nstack backtrace:\nCPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPT\nCall trace:\n show_stack (C)\n dump_stack_lvl\n dump_stack\n __lock_acquire\n lock_acquire\n _raw_spin_lock_irqsave\n counter_push_event [counter]\n interrupt_cnt_isr [interrupt_cnt]\n __handle_irq_event_percpu\n handle_irq_event\n handle_simple_irq\n handle_irq_desc\n generic_handle_domain_irq\n gpio_irq_handler\n handle_irq_desc\n generic_handle_domain_irq\n gic_handle_irq\n call_on_irq_stack\n do_interrupt_handler\n el0_interrupt\n __el0_irq_handler_common\n el0t_64_irq_handler\n el0t_64_irq\n\n... and Sebastian correctly points out. Remove IRQF_NO_THREAD as an\nalternative to switching to raw_spinlock_t, because the latter would limit\nall potential nested locks to raw_spinlock_t only."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/counter/interrupt-cnt.c"], "versions": [{"version": "a55ebd47f21f6f0472766fb52c973849e31d1466", "lessThan": "ef668c9a2261ec9287faba6e6ef05a98b391aa2b", "status": "affected", "versionType": "git"}, {"version": "a55ebd47f21f6f0472766fb52c973849e31d1466", "lessThan": "51d2e5d6491447258cb39ff1deb93df15d3c23cb", "status": "affected", "versionType": "git"}, {"version": "a55ebd47f21f6f0472766fb52c973849e31d1466", "lessThan": "1c5a3175aecf82cd86dfcbef2a23e8b26d8d8e7c", "status": "affected", "versionType": "git"}, {"version": "a55ebd47f21f6f0472766fb52c973849e31d1466", "lessThan": "49a66829dd3653695e60d7cae13521d131362fcd", "status": "affected", "versionType": "git"}, {"version": "a55ebd47f21f6f0472766fb52c973849e31d1466", "lessThan": "425886b1f8304621b3f16632b274357067d5f13f", "status": "affected", "versionType": "git"}, {"version": "a55ebd47f21f6f0472766fb52c973849e31d1466", "lessThan": "23f9485510c338476b9735d516c1d4aacb810d46", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/counter/interrupt-cnt.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.161", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.121", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.66", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.6", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "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": "5.13", "versionEndExcluding": "5.15.198"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.1.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.6.121"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.12.66"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.18.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ef668c9a2261ec9287faba6e6ef05a98b391aa2b"}, {"url": "https://git.kernel.org/stable/c/51d2e5d6491447258cb39ff1deb93df15d3c23cb"}, {"url": "https://git.kernel.org/stable/c/1c5a3175aecf82cd86dfcbef2a23e8b26d8d8e7c"}, {"url": "https://git.kernel.org/stable/c/49a66829dd3653695e60d7cae13521d131362fcd"}, {"url": "https://git.kernel.org/stable/c/425886b1f8304621b3f16632b274357067d5f13f"}, {"url": "https://git.kernel.org/stable/c/23f9485510c338476b9735d516c1d4aacb810d46"}], "title": "counter: interrupt-cnt: Drop IRQF_NO_THREAD flag", "x_generator": {"engine": "bippy-1.2.0"}}}}

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Remove IRQF_NO_THREAD as an\nalternative to switching to raw_spinlock_t, because the latter would limit\nall potential nested locks to raw_spinlock_t only."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncounter: interrupt-cnt: Eliminar el flag IRQF_NO_THREAD\n\nUn manejador de IRQ puede ser IRQF_NO_THREAD o adquirir un spinlock_t, como advierte CONFIG_PROVE_RAW_LOCK_NESTING:\n=============================\n[ BUG: Contexto de espera inv\u00e1lido ]\n6.18.0-rc1+git... #1\n-----------------------------\nsome-user-space-process/1251 est\u00e1 intentando bloquear:\n(&counter->events_list_lock){....}-{3:3}, at: counter_push_event [counter]\notra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto:\ncontext-{2:2}\nning\u00fan bloqueo mantenido por some-user-space-process/....\nrastreo de pila:\nCPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPT\nTraza de llamada:\n show_stack (C)\n dump_stack_lvl\n dump_stack\n __lock_acquire\n lock_acquire\n _raw_spin_lock_irqsave\n counter_push_event [counter]\n interrupt_cnt_isr [interrupt_cnt]\n __handle_irq_event_percpu\n handle_irq_event\n handle_simple_irq\n handle_irq_desc\n generic_handle_domain_irq\n gpio_irq_handler\n handle_irq_desc\n generic_handle_domain_irq\n gic_handle_irq\n call_on_irq_stack\n do_interrupt_handler\n el0_interrupt\n __el0_irq_handler_common\n el0t_64_irq_handler\n el0t_64_irq\n\n... y Sebastian se\u00f1ala correctamente. Eliminar IRQF_NO_THREAD como alternativa a cambiar a raw_spinlock_t, porque esto \u00faltimo limitar\u00eda todos los posibles bloqueos anidados solo a raw_spinlock_t."}], "id": "CVE-2025-71180", "lastModified": "2026-03-25T19:45:29.937", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-01-31T12:16:02.997", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c5a3175aecf82cd86dfcbef2a23e8b26d8d8e7c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/23f9485510c338476b9735d516c1d4aacb810d46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/425886b1f8304621b3f16632b274357067d5f13f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/49a66829dd3653695e60d7cae13521d131362fcd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/51d2e5d6491447258cb39ff1deb93df15d3c23cb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ef668c9a2261ec9287faba6e6ef05a98b391aa2b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: counter: interrupt-cnt: Drop IRQF_NO_THREAD flag", "id": "2435642", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2435642"}, "csaw": false, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncounter: interrupt-cnt: Drop IRQF_NO_THREAD flag\nAn IRQ handler can either be IRQF_NO_THREAD or acquire spinlock_t, as\nCONFIG_PROVE_RAW_LOCK_NESTING warns:\n=============================\n[ BUG: Invalid wait context ]\n6.18.0-rc1+git... #1\n-----------------------------\nsome-user-space-process/1251 is trying to lock:\n(&counter->events_list_lock){....}-{3:3}, at: counter_push_event [counter]\nother info that might help us debug this:\ncontext-{2:2}\nno locks held by some-user-space-process/....\nstack backtrace:\nCPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPT\nCall trace:\nshow_stack (C)\ndump_stack_lvl\ndump_stack\n__lock_acquire\nlock_acquire\n_raw_spin_lock_irqsave\ncounter_push_event [counter]\ninterrupt_cnt_isr [interrupt_cnt]\n__handle_irq_event_percpu\nhandle_irq_event\nhandle_simple_irq\nhandle_irq_desc\ngeneric_handle_domain_irq\ngpio_irq_handler\nhandle_irq_desc\ngeneric_handle_domain_irq\ngic_handle_irq\ncall_on_irq_stack\ndo_interrupt_handler\nel0_interrupt\n__el0_irq_handler_common\nel0t_64_irq_handler\nel0t_64_irq\n... and Sebastian correctly points out. Remove IRQF_NO_THREAD as an\nalternative to switching to raw_spinlock_t, because the latter would limit\nall potential nested locks to raw_spinlock_t only."], "name": "CVE-2025-71180", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-01-31T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-71180\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71180\nhttps://lore.kernel.org/linux-cve-announce/2026013131-CVE-2025-71180-538e@gregkh/T"]}

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