CVE-2022-49265

{"id": "CVE-2022-49265", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-02-26T07:01:03.437", "references": [{"url": "https://git.kernel.org/stable/c/2039163c30f886cf5638afd6993705ae9bb34a06", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d1b6840d8fb9b35193d45d8fe6b4d830bfd20c3c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f6bfe8b5b2c2a5ac8bd2fc7bca3706e6c3fc26d8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fee777ea77769cc5392a34805d9d73099a223fae", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM: domains: Fix sleep-in-atomic bug caused by genpd_debug_remove()\n\nWhen a genpd with GENPD_FLAG_IRQ_SAFE gets removed, the following\nsleep-in-atomic bug will be seen, as genpd_debug_remove() will be called\nwith a spinlock being held.\n\n[ 0.029183] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1460\n[ 0.029204] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 1, name: swapper/0\n[ 0.029219] preempt_count: 1, expected: 0\n[ 0.029230] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc4+ #489\n[ 0.029245] Hardware name: Thundercomm TurboX CM2290 (DT)\n[ 0.029256] Call trace:\n[ 0.029265] dump_backtrace.part.0+0xbc/0xd0\n[ 0.029285] show_stack+0x3c/0xa0\n[ 0.029298] dump_stack_lvl+0x7c/0xa0\n[ 0.029311] dump_stack+0x18/0x34\n[ 0.029323] __might_resched+0x10c/0x13c\n[ 0.029338] __might_sleep+0x4c/0x80\n[ 0.029351] down_read+0x24/0xd0\n[ 0.029363] lookup_one_len_unlocked+0x9c/0xcc\n[ 0.029379] lookup_positive_unlocked+0x10/0x50\n[ 0.029392] debugfs_lookup+0x68/0xac\n[ 0.029406] genpd_remove.part.0+0x12c/0x1b4\n[ 0.029419] of_genpd_remove_last+0xa8/0xd4\n[ 0.029434] psci_cpuidle_domain_probe+0x174/0x53c\n[ 0.029449] platform_probe+0x68/0xe0\n[ 0.029462] really_probe+0x190/0x430\n[ 0.029473] __driver_probe_device+0x90/0x18c\n[ 0.029485] driver_probe_device+0x40/0xe0\n[ 0.029497] __driver_attach+0xf4/0x1d0\n[ 0.029508] bus_for_each_dev+0x70/0xd0\n[ 0.029523] driver_attach+0x24/0x30\n[ 0.029534] bus_add_driver+0x164/0x22c\n[ 0.029545] driver_register+0x78/0x130\n[ 0.029556] __platform_driver_register+0x28/0x34\n[ 0.029569] psci_idle_init_domains+0x1c/0x28\n[ 0.029583] do_one_initcall+0x50/0x1b0\n[ 0.029595] kernel_init_freeable+0x214/0x280\n[ 0.029609] kernel_init+0x2c/0x13c\n[ 0.029622] ret_from_fork+0x10/0x20\n\nIt doesn't seem necessary to call genpd_debug_remove() with the lock, so\nmove it out from locking to fix the problem."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PM: dominios: Se corrige el error sleep-in-atomic causado por genpd_debug_remove() Cuando se elimina un genpd con GENPD_FLAG_IRQ_SAFE, se ver\u00e1 el siguiente error sleep-in-atomic, ya que se llamar\u00e1 a genpd_debug_remove() con un spinlock retenido. [ 0.029183] ERROR: funci\u00f3n inactiva llamada desde un contexto no v\u00e1lido en kernel/locking/rwsem.c:1460 [ 0.029204] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 1, name: swapper/0 [ 0.029219] preempt_count: 1, expected: 0 [ 0.029230] CPU: 1 PID: 1 Comm: swapper/0 No contaminado 5.17.0-rc4+ #489 [ 0.029245] Nombre del hardware: Thundercomm TurboX CM2290 (DT) [ 0.029256] Rastreo de llamadas: [ 0.029265] dump_backtrace.part.0+0xbc/0xd0 [ 0.029285] show_stack+0x3c/0xa0 [ 0.029298] dump_stack_lvl+0x7c/0xa0 [ 0.029311] dump_stack+0x18/0x34 [ 0.029323] __might_resched+0x10c/0x13c [ 0.029338] __might_sleep+0x4c/0x80 [ 0.029351] down_read+0x24/0xd0 [ 0.029363] lookup_one_len_unlocked+0x9c/0xcc [ 0.029379] lookup_positive_unlocked+0x10/0x50 [ 0.029392] debugfs_lookup+0x68/0xac [ 0.029406] genpd_remove.part.0+0x12c/0x1b4 [ 0.029419] of_genpd_remove_last+0xa8/0xd4 [ 0.029434] psci_cpuidle_domain_probe+0x174/0x53c [ 0.029449] platform_probe+0x68/0xe0 [ 0.029462] really_probe+0x190/0x430 [ 0.029473] __driver_probe_device+0x90/0x18c [ 0.029485] driver_probe_device+0x40/0xe0 [ 0.029497] __driver_attach+0xf4/0x1d0 [ 0.029508] bus_for_each_dev+0x70/0xd0 [ 0.029523] driver_attach+0x24/0x30 [ 0.029534] bus_add_driver+0x164/0x22c [ 0.029545] driver_register+0x78/0x130 [ 0.029556] __platform_driver_register+0x28/0x34 [ 0.029569] psci_idle_init_domains+0x1c/0x28 [ 0.029583] do_one_initcall+0x50/0x1b0 [ 0.029595] kernel_init_freeable+0x214/0x280 [ 0.029609] kernel_init+0x2c/0x13c [ 0.029622] ret_from_fork+0x10/0x200 No parece necesario llamar a genpd_debug_remove() con el bloqueo, as\u00ed que s\u00e1quelo del bloqueo para solucionar el problema."}], "lastModified": "2025-10-21T11:50:26.747", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "27C42AE8-B387-43E2-938A-E1C8B40BE6D5", "versionEndExcluding": "5.15.33", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B", "versionEndExcluding": "5.16.19", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF", "versionEndExcluding": "5.17.2", "versionStartIncluding": "5.17"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}