{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-08T05:16:23.923","vulnerabilities":[{"cve":{"id":"CVE-2025-71102","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-01-14T15:15:59.210","lastModified":"2026-03-25T18:56:00.797","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscs: fix a wrong parameter in __scs_magic\n\n__scs_magic() needs a 'void *' variable, but a 'struct task_struct *' is\ngiven.  'task_scs(tsk)' is the starting address of the task's shadow call\nstack, and '__scs_magic(task_scs(tsk))' is the end address of the task's\nshadow call stack.  Here should be '__scs_magic(task_scs(tsk))'.\n\nThe user-visible effect of this bug is that when CONFIG_DEBUG_STACK_USAGE\nis enabled, the shadow call stack usage checking function\n(scs_check_usage) would scan an incorrect memory range.  This could lead\n\n1. **Inaccurate stack usage reporting**: The function would calculate\n   wrong usage statistics for the shadow call stack, potentially showing\n   incorrect value in kmsg.\n\n2. **Potential kernel crash**: If the value of __scs_magic(tsk)is\n   greater than that of __scs_magic(task_scs(tsk)), the for loop may\n   access unmapped memory, potentially causing a kernel panic.  However,\n   this scenario is unlikely because task_struct is allocated via the slab\n   allocator (which typically returns lower addresses), while the shadow\n   call stack returned by task_scs(tsk) is allocated via vmalloc(which\n   typically returns higher addresses).\n\nHowever, since this is purely a debugging feature\n(CONFIG_DEBUG_STACK_USAGE), normal production systems should be not\nunaffected.  The bug only impacts developers and testers who are actively\ndebugging stack usage with this configuration enabled."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nscs: corrige un parámetro incorrecto en __scs_magic\n\n__scs_magic() necesita una variable 'void *', pero se le da una 'struct task_struct *'. 'task_scs(tsk)' es la dirección de inicio de la pila de llamadas en sombra de la tarea, y '__scs_magic(task_scs(tsk))' es la dirección final de la pila de llamadas en sombra de la tarea. Aquí debería ser '__scs_magic(task_scs(tsk))'.\n\nEl efecto visible para el usuario de este error es que cuando CONFIG_DEBUG_STACK_USAGE está habilitado, la función de comprobación de uso de la pila de llamadas en sombra (scs_check_usage) escanearía un rango de memoria incorrecto. Esto podría llevar a\n\n1. Informes de uso de pila inexactos: La función calcularía estadísticas de uso incorrectas para la pila de llamadas en sombra, potencialmente mostrando un valor incorrecto en kmsg.\n\n2. Posible caída del kernel: Si el valor de __scs_magic(tsk) es mayor que el de __scs_magic(task_scs(tsk)), el bucle for podría acceder a memoria no mapeada, potencialmente causando un pánico del kernel. Sin embargo, este escenario es poco probable porque task_struct se asigna a través del asignador slab (que típicamente devuelve direcciones más bajas), mientras que la pila de llamadas en sombra devuelta por task_scs(tsk) se asigna a través de vmalloc (que típicamente devuelve direcciones más altas).\n\nSin embargo, dado que esta es puramente una característica de depuración (CONFIG_DEBUG_STACK_USAGE), los sistemas de producción normales no deberían verse afectados. El error solo afecta a desarrolladores y probadores que están depurando activamente el uso de la pila con esta configuración habilitada."}],"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: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"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8.1","versionEndExcluding":"5.10.248","matchCriteriaId":"F54AC764-1B64-490B-8453-1CB63C5FFCD1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.198","matchCriteriaId":"82159CAA-B6BA-43C6-85D8-65BDBC175A7E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.160","matchCriteriaId":"C10CC03E-16A9-428A-B449-40D3763E15F6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.120","matchCriteriaId":"43C3A206-5EEE-417B-AA0F-EF8972E7A9F0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.64","matchCriteriaId":"32BF4A52-377C-44ED-B5E6-7EA5D896E98B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.3","matchCriteriaId":"2DC484D8-FB4F-4112-900F-AE333B6FE7A7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.8:-:*:*:*:*:*:*","matchCriteriaId":"0E2DC66F-4A95-475F-B8B6-191DEC1E7EF6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*","matchCriteriaId":"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*","matchCriteriaId":"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*","matchCriteriaId":"F71D92C0-C023-48BD-B3B6-70B638EEE298"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*","matchCriteriaId":"13580667-0A98-40CC-B29F-D12790B91BDB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*","matchCriteriaId":"CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*","matchCriteriaId":"3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*","matchCriteriaId":"F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*","matchCriteriaId":"EB5B7DFC-C36B-45D8-922C-877569FDDF43"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/062774439d442882b44f5eab8c256ad3423ef284","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/08bd4c46d5e63b78e77f2605283874bbe868ab19","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/1727e8bd69103a68963a5613a0ddb6d8d37df5d3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/57ba40b001be27786d0570dd292289df748b306b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9ef28943471a16e4f9646bc3e8e2de148e7d8d7b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a19fb3611e4c06624fc0f83ef19f4fb8d57d4751","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/cfdf6250b63b953b1d8e60814c8ca96c6f9d1c8c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}