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nvd-json-data-feeds/CVE-2024/CVE-2024-502xx/CVE-2024-50249.json
cad-safe-bot e6cbafdc40 Auto-Update: 2024-12-08T03:00:18.988682+00:00
2024-12-08 03:06:42 +00:00

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{
"id": "CVE-2024-50249",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-11-09T11:15:10.743",
"lastModified": "2024-11-14T17:01:11.577",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Make rmw_lock a raw_spin_lock\n\nThe following BUG was triggered:\n\n=============================\n[ BUG: Invalid wait context ]\n6.12.0-rc2-XXX #406 Not tainted\n-----------------------------\nkworker/1:1/62 is trying to lock:\nffffff8801593030 (&cpc_ptr->rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370\nother info that might help us debug this:\ncontext-{5:5}\n2 locks held by kworker/1:1/62:\n #0: ffffff897ef5ec98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50\n #1: ffffff880154e238 (&sg_policy->update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280\nstack backtrace:\nCPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406\nWorkqueue: 0x0 (events)\nCall trace:\n dump_backtrace+0xa4/0x130\n show_stack+0x20/0x38\n dump_stack_lvl+0x90/0xd0\n dump_stack+0x18/0x28\n __lock_acquire+0x480/0x1ad8\n lock_acquire+0x114/0x310\n _raw_spin_lock+0x50/0x70\n cpc_write+0xcc/0x370\n cppc_set_perf+0xa0/0x3a8\n cppc_cpufreq_fast_switch+0x40/0xc0\n cpufreq_driver_fast_switch+0x4c/0x218\n sugov_update_shared+0x234/0x280\n update_load_avg+0x6ec/0x7b8\n dequeue_entities+0x108/0x830\n dequeue_task_fair+0x58/0x408\n __schedule+0x4f0/0x1070\n schedule+0x54/0x130\n worker_thread+0xc0/0x2e8\n kthread+0x130/0x148\n ret_from_fork+0x10/0x20\n\nsugov_update_shared() locks a raw_spinlock while cpc_write() locks a\nspinlock.\n\nTo have a correct wait-type order, update rmw_lock to a raw spinlock and\nensure that interrupts will be disabled on the CPU holding it.\n\n[ rjw: Changelog edits ]"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ACPI: CPPC: Convertir rmw_lock en raw_spin_lock Se activ\u00f3 el siguiente ERROR: ============================= [ ERROR: Contexto de espera no v\u00e1lido ] 6.12.0-rc2-XXX #406 No contaminado ----------------------------- kworker/1:1/62 est\u00e1 intentando bloquear: ffffff8801593030 (&cpc_ptr->rmw_lock){+.+.}-{3:3}, en: cpc_write+0xcc/0x370 otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto: context-{5:5} 2 bloqueos mantenidos por kworker/1:1/62: #0: ffffff897ef5ec98 (&rq->__lock){-.-.}-{2:2}, en: raw_spin_rq_lock_nested+0x2c/0x50 #1: ffffff880154e238 (&sg_policy->update_lock){....}-{2:2}, en: sugov_update_shared+0x3c/0x280 seguimiento de pila: CPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 No contaminado 6.12.0-rc2-g9654bd3e8806 #406 Cola de trabajo: 0x0 (eventos) Seguimiento de llamadas: dump_backtrace+0xa4/0x130 show_stack+0x20/0x38 dump_stack_lvl+0x90/0xd0 dump_stack+0x18/0x28 __lock_acquire+0x480/0x1ad8 bloqueo_adquisici\u00f3n+0x114/0x310 bloqueo_giro_sin_engranaje+0x50/0x70 escritura_cpc+0xcc/0x370 rendimiento_establecimiento_cppc+0xa0/0x3a8 cambio_r\u00e1pido_de_frecuencia_de_cpuc+0x40/0xc0 cambio_r\u00e1pido_de_controlador_de_frecuencia_de_cpu+0x4c/0x218 actualizaci\u00f3n_compartida_sugov+0x234/0x280 promedio_de_carga_actualizaci\u00f3n+0x6ec/0x7b8 entidades_de_la_cola+0x108/0x830 tarea_de_la_cola_justa+0x58/0x408 __programaci\u00f3n+0x4f0/0x1070 programaci\u00f3n+0x54/0x130 subproceso_de_trabajo+0xc0/0x2e8 kthread+0x130/0x148 ret_from_fork+0x10/0x20 sugov_update_shared() bloquea un raw_spinlock mientras que cpc_write() bloquea un spinlock. Para tener un orden de espera correcto, actualice rmw_lock a un spinlock sin procesar y aseg\u00farese de que las interrupciones se desactiven en la CPU que lo contiene. [ rjw: ediciones del registro de cambios ]"
}
],
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{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
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