CVE-2025-21878

{"id": "CVE-2025-21878", "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": "2025-03-27T15:15:55.657", "references": [{"url": "https://git.kernel.org/stable/c/12d0e39916705b68d2d8ba20a8e35d1d27afc260", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1b267e1b87d52b16e7dfcc7ab2ab760f6f8f9ca9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/545b563eb00d0576775da4011b3f7ffefc9e8c60", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/846e371631c57365eeb89e5db1ab0f344169af93", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dd1998e243f5fa25d348a384ba0b6c84d980f2b2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e3aea1dba97d31eceed7b622000af0406988b9c8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f32d7b4dc6e791523c70e83049645dcba2a2aa33", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: npcm: disable interrupt enable bit before devm_request_irq\n\nThe customer reports that there is a soft lockup issue related to\nthe i2c driver. After checking, the i2c module was doing a tx transfer\nand the bmc machine reboots in the middle of the i2c transaction, the i2c\nmodule keeps the status without being reset.\n\nDue to such an i2c module status, the i2c irq handler keeps getting\ntriggered since the i2c irq handler is registered in the kernel booting\nprocess after the bmc machine is doing a warm rebooting.\nThe continuous triggering is stopped by the soft lockup watchdog timer.\n\nDisable the interrupt enable bit in the i2c module before calling\ndevm_request_irq to fix this issue since the i2c relative status bit\nis read-only.\n\nHere is the soft lockup log.\n[ 28.176395] watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [swapper/0:1]\n[ 28.183351] Modules linked in:\n[ 28.186407] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.120-yocto-s-dirty-bbebc78 #1\n[ 28.201174] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 28.208128] pc : __do_softirq+0xb0/0x368\n[ 28.212055] lr : __do_softirq+0x70/0x368\n[ 28.215972] sp : ffffff8035ebca00\n[ 28.219278] x29: ffffff8035ebca00 x28: 0000000000000002 x27: ffffff80071a3780\n[ 28.226412] x26: ffffffc008bdc000 x25: ffffffc008bcc640 x24: ffffffc008be50c0\n[ 28.233546] x23: ffffffc00800200c x22: 0000000000000000 x21: 000000000000001b\n[ 28.240679] x20: 0000000000000000 x19: ffffff80001c3200 x18: ffffffffffffffff\n[ 28.247812] x17: ffffffc02d2e0000 x16: ffffff8035eb8b40 x15: 00001e8480000000\n[ 28.254945] x14: 02c3647e37dbfcb6 x13: 02c364f2ab14200c x12: 0000000002c364f2\n[ 28.262078] x11: 00000000fa83b2da x10: 000000000000b67e x9 : ffffffc008010250\n[ 28.269211] x8 : 000000009d983d00 x7 : 7fffffffffffffff x6 : 0000036d74732434\n[ 28.276344] x5 : 00ffffffffffffff x4 : 0000000000000015 x3 : 0000000000000198\n[ 28.283476] x2 : ffffffc02d2e0000 x1 : 00000000000000e0 x0 : ffffffc008bdcb40\n[ 28.290611] Call trace:\n[ 28.293052] __do_softirq+0xb0/0x368\n[ 28.296625] __irq_exit_rcu+0xe0/0x100\n[ 28.300374] irq_exit+0x14/0x20\n[ 28.303513] handle_domain_irq+0x68/0x90\n[ 28.307440] gic_handle_irq+0x78/0xb0\n[ 28.311098] call_on_irq_stack+0x20/0x38\n[ 28.315019] do_interrupt_handler+0x54/0x5c\n[ 28.319199] el1_interrupt+0x2c/0x4c\n[ 28.322777] el1h_64_irq_handler+0x14/0x20\n[ 28.326872] el1h_64_irq+0x74/0x78\n[ 28.330269] __setup_irq+0x454/0x780\n[ 28.333841] request_threaded_irq+0xd0/0x1b4\n[ 28.338107] devm_request_threaded_irq+0x84/0x100\n[ 28.342809] npcm_i2c_probe_bus+0x188/0x3d0\n[ 28.346990] platform_probe+0x6c/0xc4\n[ 28.350653] really_probe+0xcc/0x45c\n[ 28.354227] __driver_probe_device+0x8c/0x160\n[ 28.358578] driver_probe_device+0x44/0xe0\n[ 28.362670] __driver_attach+0x124/0x1d0\n[ 28.366589] bus_for_each_dev+0x7c/0xe0\n[ 28.370426] driver_attach+0x28/0x30\n[ 28.373997] bus_add_driver+0x124/0x240\n[ 28.377830] driver_register+0x7c/0x124\n[ 28.381662] __platform_driver_register+0x2c/0x34\n[ 28.386362] npcm_i2c_init+0x3c/0x5c\n[ 28.389937] do_one_initcall+0x74/0x230\n[ 28.393768] kernel_init_freeable+0x24c/0x2b4\n[ 28.398126] kernel_init+0x28/0x130\n[ 28.401614] ret_from_fork+0x10/0x20\n[ 28.405189] Kernel panic - not syncing: softlockup: hung tasks\n[ 28.411011] SMP: stopping secondary CPUs\n[ 28.414933] Kernel Offset: disabled\n[ 28.418412] CPU features: 0x00000000,00000802\n[ 28.427644] Rebooting in 20 seconds.."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i2c: npcm: deshabilitar el bit de habilitaci\u00f3n de interrupci\u00f3n antes de devm_request_irq El cliente informa que hay un problema de bloqueo suave relacionado con el controlador i2c. Despu\u00e9s de verificar, el m\u00f3dulo i2c estaba haciendo una transferencia tx y la m\u00e1quina bmc se reinicia en medio de la transacci\u00f3n i2c, el m\u00f3dulo i2c mantiene el estado sin reiniciarse. Debido a dicho estado del m\u00f3dulo i2c, el controlador de irq i2c sigue activ\u00e1ndose ya que el controlador de irq i2c se registra en el proceso de arranque del kernel despu\u00e9s de que la m\u00e1quina bmc est\u00e9 haciendo un reinicio en caliente. El temporizador de vigilancia de bloqueo suave detiene la activaci\u00f3n continua. Deshabilite el bit de habilitaci\u00f3n de interrupci\u00f3n en el m\u00f3dulo i2c antes de llamar a devm_request_irq para corregir este problema, ya que el bit de estado relativo de i2c es de solo lectura. Aqu\u00ed est\u00e1 el registro de bloqueo suave. [ 28.176395] watchdog: ERROR: bloqueo suave: \u00a1CPU n.\u00b0 0 bloqueada durante 26 s! [swapper/0:1] [ 28.183351] M\u00f3dulos vinculados: [ 28.186407] CPU: 0 PID: 1 Comm: swapper/0 No contaminado 5.15.120-yocto-s-dirty-bbebc78 #1 [ 28.201174] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 28.208128] pc : __do_softirq+0xb0/0x368 [ 28.212055] lr : __do_softirq+0x70/0x368 [ 28.215972] sp : ffffff8035ebca00 [ 28.219278] x29: ffffff8035ebca00 x28: 0000000000000002 x27: ffffff80071a3780 [ 28.226412] x26: ffffffc008bdc000 x25: ffffffc008bcc640 x24: ffffffc008be50c0 [ 28.233546] x23: ffffffc00800200c x22: 0000000000000000 x21: 000000000000001b [ 28.240679] x20: 0000000000000000 x19: ffffff80001c3200 x18: ffffffffffffffff [ 28.247812] x17: ffffffc02d2e0000 x16: ffffff8035eb8b40 x15: 00001e8480000000 [ 28.254945] x14: 02c3647e37dbfcb6 x13: 02c364f2ab14200c x12: 0000000002c364f2 [ 28.262078] x11: 00000000fa83b2da x10: 000000000000b67e x9 : ffffffc008010250 [ 28.269211] x8 : 000000009d983d00 x7 : 7fffffffffffffff x6 : 0000036d74732434 [ 28.276344] x5 : 00ffffffffffffff x4 : 0000000000000015 x3 : 0000000000000198 [ 28.283476] x2 : ffffffc02d2e0000 x1 : 00000000000000e0 x0 : ffffffc008bdcb40 [ 28.290611] Call trace: [ 28.293052] __do_softirq+0xb0/0x368 [ 28.296625] __irq_exit_rcu+0xe0/0x100 [ 28.300374] irq_exit+0x14/0x20 [ 28.303513] handle_domain_irq+0x68/0x90 [ 28.307440] gic_handle_irq+0x78/0xb0 [ 28.311098] call_on_irq_stack+0x20/0x38 [ 28.315019] do_interrupt_handler+0x54/0x5c [ 28.319199] el1_interrupt+0x2c/0x4c [ 28.322777] el1h_64_irq_handler+0x14/0x20 [ 28.326872] el1h_64_irq+0x74/0x78 [ 28.330269] __setup_irq+0x454/0x780 [ 28.333841] request_threaded_irq+0xd0/0x1b4 [ 28.338107] devm_request_threaded_irq+0x84/0x100 [ 28.342809] npcm_i2c_probe_bus+0x188/0x3d0 [ 28.346990] platform_probe+0x6c/0xc4 [ 28.350653] really_probe+0xcc/0x45c [ 28.354227] __driver_probe_device+0x8c/0x160 [ 28.358578] driver_probe_device+0x44/0xe0 [ 28.362670] __driver_attach+0x124/0x1d0 [ 28.366589] bus_for_each_dev+0x7c/0xe0 [ 28.370426] driver_attach+0x28/0x30 [ 28.373997] bus_add_driver+0x124/0x240 [ 28.377830] driver_register+0x7c/0x124 [ 28.381662] __platform_driver_register+0x2c/0x34 [ 28.386362] npcm_i2c_init+0x3c/0x5c [ 28.389937] do_one_initcall+0x74/0x230 [ 28.393768] kernel_init_freeable+0x24c/0x2b4 [ 28.398126] kernel_init+0x28/0x130 [ 28.401614] ret_from_fork+0x10/0x20 [ 28.405189] Kernel panic - not syncing: softlockup: hung tasks [ 28.411011] SMP: stopping secondary CPUs [ 28.414933] Kernel Offset: disabled [ 28.418412] CPU features: 0x00000000,00000802 [ 28.427644] Reiniciando en 20 segundos."}], "lastModified": "2025-11-03T20:17:24.970", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17FFC38A-2679-443B-8BDB-D553D86D60EE", "versionEndExcluding": "5.10.235", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C708062C-4E1B-465F-AE6D-C09C46400875", "versionEndExcluding": "5.15.179", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "26997835-273D-4841-ABD3-4696059AC299", "versionEndExcluding": "6.1.130", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C92C9CD-2ADE-412E-A7FF-DC9E0630B25D", "versionEndExcluding": "6.6.81", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3D5C8D9A-4013-4C1A-810F-AA540BB5737C", "versionEndExcluding": "6.12.18", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64F12D9B-71C2-4CD7-A288-0D5EF1709620", "versionEndExcluding": "6.13.6", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "66619FB8-0AAF-4166-B2CF-67B24143261D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3D6550E-6679-4560-902D-AF52DCFE905B"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}