{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T03:26:54.073","vulnerabilities":[{"cve":{"id":"CVE-2021-47025","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-02-28T09:15:39.290","lastModified":"2024-12-06T18:52:52.237","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Always enable the clk on resume\n\nIn mtk_iommu_runtime_resume always enable the clk, even\nif m4u_dom is null. Otherwise the 'suspend' cb might\ndisable the clk which is already disabled causing the warning:\n\n[    1.586104] infra_m4u already disabled\n[    1.586133] WARNING: CPU: 0 PID: 121 at drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8\n[    1.594391] mtk-iommu 10205000.iommu: bound 18001000.larb (ops mtk_smi_larb_component_ops)\n[    1.598108] Modules linked in:\n[    1.598114] CPU: 0 PID: 121 Comm: kworker/0:2 Not tainted 5.12.0-rc5 #69\n[    1.609246] mtk-iommu 10205000.iommu: bound 14027000.larb (ops mtk_smi_larb_component_ops)\n[    1.617487] Hardware name: Google Elm (DT)\n[    1.617491] Workqueue: pm pm_runtime_work\n[    1.620545] mtk-iommu 10205000.iommu: bound 19001000.larb (ops mtk_smi_larb_component_ops)\n\n[    1.627229] pstate: 60000085 (nZCv daIf -PAN -UAO -TCO BTYPE=--)\n[    1.659297] pc : clk_core_disable+0xb0/0xb8\n[    1.663475] lr : clk_core_disable+0xb0/0xb8\n[    1.667652] sp : ffff800011b9bbe0\n[    1.670959] x29: ffff800011b9bbe0 x28: 0000000000000000\n[    1.676267] x27: ffff800011448000 x26: ffff8000100cfd98\n[    1.681574] x25: ffff800011b9bd48 x24: 0000000000000000\n[    1.686882] x23: 0000000000000000 x22: ffff8000106fad90\n[    1.692189] x21: 000000000000000a x20: ffff0000c0048500\n[    1.697496] x19: ffff0000c0048500 x18: ffffffffffffffff\n[    1.702804] x17: 0000000000000000 x16: 0000000000000000\n[    1.708112] x15: ffff800011460300 x14: fffffffffffe0000\n[    1.713420] x13: ffff8000114602d8 x12: 0720072007200720\n[    1.718727] x11: 0720072007200720 x10: 0720072007200720\n[    1.724035] x9 : ffff800011b9bbe0 x8 : ffff800011b9bbe0\n[    1.729342] x7 : 0000000000000009 x6 : ffff8000114b8328\n[    1.734649] x5 : 0000000000000000 x4 : 0000000000000000\n[    1.739956] x3 : 00000000ffffffff x2 : ffff800011460298\n[    1.745263] x1 : 1af1d7de276f4500 x0 : 0000000000000000\n[    1.750572] Call trace:\n[    1.753010]  clk_core_disable+0xb0/0xb8\n[    1.756840]  clk_core_disable_lock+0x24/0x40\n[    1.761105]  clk_disable+0x20/0x30\n[    1.764501]  mtk_iommu_runtime_suspend+0x88/0xa8\n[    1.769114]  pm_generic_runtime_suspend+0x2c/0x48\n[    1.773815]  __rpm_callback+0xe0/0x178\n[    1.777559]  rpm_callback+0x24/0x88\n[    1.781041]  rpm_suspend+0xdc/0x470\n[    1.784523]  rpm_idle+0x12c/0x170\n[    1.787831]  pm_runtime_work+0xa8/0xc0\n[    1.791573]  process_one_work+0x1e8/0x360\n[    1.795580]  worker_thread+0x44/0x478\n[    1.799237]  kthread+0x150/0x158\n[    1.802460]  ret_from_fork+0x10/0x30\n[    1.806034] ---[ end trace 82402920ef64573b ]---\n[    1.810728] ------------[ cut here ]------------\n\nIn addition, we now don't need to enable the clock from the\nfunction mtk_iommu_hw_init since it is already enabled by the resume."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/mediatek: habilite siempre clk al reanudar. En mtk_iommu_runtime_resume habilite siempre clk, incluso si m4u_dom es nulo. De lo contrario, el cb 'suspender' podría desactivar el clk que ya está desactivado provocando la advertencia: [1.586104] infra_m4u ya desactivado [1.586133] ADVERTENCIA: CPU: 0 PID: 121 en drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8 [ 1.594391] mtk-iommu 10205000.iommu: enlazado 18001000.larb (ops mtk_smi_larb_component_ops) [ 1.598108] Módulos vinculados en: [ 1.598114] CPU: 0 PID: 121 Comm: kworker/0:2 No contaminado 5.12.0 -rc5 #69 [ 1.609246] mtk-iommu 10205000.iommu: enlazado 14027000.larb (ops mtk_smi_larb_component_ops) [ 1.617487] Nombre del hardware: Google Elm (DT) [ 1.617491] Cola de trabajo: pm pm_runtime_work [ 1.620545] mtk-iomm u 10205000.iommu: encuadernado 19001000.larb (ops mtk_smi_larb_component_ops) [1.627229] pstate: 60000085 (nZCv daIf -PAN -UAO -TCO BTYPE=--) [1.659297] pc: clk_core_disable+0xb0/0xb8 [1.663475] lr: clk_core_disable+0xb0/0x b8 [1.667652] sp: ffff800011b9bbe0 [ 1.670959] x29: ffff800011b9bbe0 x28: 0000000000000000 [ 1.676267] x27: ffff800011448000 x26: ffff8000100cfd98 [ 1.681574] x25: ffff800011b9 bd48 x24: 0000000000000000 [ 1.686882] x23: 0000000000000000 x22: ffff8000106fad90 [ 1.692189] x21: 0000000000000000a x20: ffff0000c004850 0 [1,697496] x19: ffff0000c0048500 x18: ffffffffffffffff [ 1.702804] x17: 0000000000000000 x16: 00000000000000000 [ 1.708112] x15: ffff800011460300 x14: ffffffffffe000 0 [ 1.713420] x13: ffff8000114602d8 x12: 0720072007200720 [ 1.718727] x11: 0720072007200720 x10: 0720072007200720 [ 1.724035] x9 : ffff800 011b9bbe0 x8: ffff800011b9bbe0 [ 1.729342] x7: 0000000000000009 x6: ffff8000114b8328 [1.734649] x5: 0000000000000000 x4: 00000000000000000 [1.739956] x3: 00000000ffff ffff x2: ffff800011460298 [1.745263] x1: 1af1d7de276f4500 x0: 0000000000000000 [1.750572] Rastreo de llamadas: [1.753010] clk_core_disable+0xb0/0xb8 [ 1.756840] clk_core_disable_lock+0x24/0x40 [ 1.761105] clk_disable+0x20/0x30 [ 1.764501] mtk_iommu_runtime_suspend+0x88/0xa8 [ 1.769114] pm_generic_runtime_suspend+0x2c/0x48 [ 1 .773815] __rpm_callback+0xe0/0x178 [ 1.777559] rpm_callback+0x24/0x88 [ 1.781041] rpm_suspend+0xdc/0x470 [ 1.784523] rpm_idle+0x12c/0x170 [ 1.787831] pm_runtime_work+0xa8/0xc0 [ 1.791573] Process_one_work+0x1e8/0x360 [ 1.795580] trabajador_thread+0x44/0x478 [ 1.799237] kthread+0x150/0x158 [ 1.802460] ret_from_fork+ 0x10/0x30 [1.806034] ---[ final de seguimiento 82402920ef64573b ]--- [ 1.810728] ------------[ cortar aquí ]------------ Además , ahora no necesitamos habilitar el reloj desde la función mtk_iommu_hw_init ya que ya está habilitado en el currículum."}],"metrics":{"cvssMetricV31":[{"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:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"5.12.4","matchCriteriaId":"D8C7052F-1B7B-4327-9C2B-84EBF3243838"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5cad9e2caa9613fdcd246bd4ebf0ffbec1cba2ca","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b34ea31fe013569d42b7e8681ef3f717f77c5b72","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5cad9e2caa9613fdcd246bd4ebf0ffbec1cba2ca","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b34ea31fe013569d42b7e8681ef3f717f77c5b72","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}