{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-04T03:22:12.296","vulnerabilities":[{"cve":{"id":"CVE-2025-37837","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-05-09T07:16:04.467","lastModified":"2025-11-14T20:00:56.753","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Fix warnings due to dmam_free_coherent()\n\nTwo WARNINGs are observed when SMMU driver rolls back upon failure:\n arm-smmu-v3.9.auto: Failed to register iommu\n arm-smmu-v3.9.auto: probe with driver arm-smmu-v3 failed with error -22\n ------------[ cut here ]------------\n WARNING: CPU: 5 PID: 1 at kernel/dma/mapping.c:74 dmam_free_coherent+0xc0/0xd8\n Call trace:\n  dmam_free_coherent+0xc0/0xd8 (P)\n  tegra241_vintf_free_lvcmdq+0x74/0x188\n  tegra241_cmdqv_remove_vintf+0x60/0x148\n  tegra241_cmdqv_remove+0x48/0xc8\n  arm_smmu_impl_remove+0x28/0x60\n  devm_action_release+0x1c/0x40\n ------------[ cut here ]------------\n 128 pages are still in use!\n WARNING: CPU: 16 PID: 1 at mm/page_alloc.c:6902 free_contig_range+0x18c/0x1c8\n Call trace:\n  free_contig_range+0x18c/0x1c8 (P)\n  cma_release+0x154/0x2f0\n  dma_free_contiguous+0x38/0xa0\n  dma_direct_free+0x10c/0x248\n  dma_free_attrs+0x100/0x290\n  dmam_free_coherent+0x78/0xd8\n  tegra241_vintf_free_lvcmdq+0x74/0x160\n  tegra241_cmdqv_remove+0x98/0x198\n  arm_smmu_impl_remove+0x28/0x60\n  devm_action_release+0x1c/0x40\n\nThis is because the LVCMDQ queue memory are managed by devres, while that\ndmam_free_coherent() is called in the context of devm_action_release().\n\nJason pointed out that \"arm_smmu_impl_probe() has mis-ordered the devres\ncallbacks if ops->device_remove() is going to be manually freeing things\nthat probe allocated\":\nhttps://lore.kernel.org/linux-iommu/20250407174408.GB1722458@nvidia.com/\n\nIn fact, tegra241_cmdqv_init_structures() only allocates memory resources\nwhich means any failure that it generates would be similar to -ENOMEM, so\nthere is no point in having that \"falling back to standard SMMU\" routine,\nas the standard SMMU would likely fail to allocate memory too.\n\nRemove the unwind part in tegra241_cmdqv_init_structures(), and return a\nproper error code to ask SMMU driver to call tegra241_cmdqv_remove() via\nimpl_ops->device_remove(). Then, drop tegra241_vintf_free_lvcmdq() since\ndevres will take care of that."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/tegra241-cmdqv: Se corrigen las advertencias debido a dmam_free_coherent() Se observan dos ADVERTENCIAS cuando el controlador SMMU se revierte tras un error: arm-smmu-v3.9.auto: No se pudo registrar iommu arm-smmu-v3.9.auto: La sonda con el controlador arm-smmu-v3 falló con el error -22 ------------[ cortar aquí ]------------ ADVERTENCIA: CPU: 5 PID: 1 en kernel/dma/mapping.c:74 dmam_free_coherent+0xc0/0xd8 Rastreo de llamadas: dmam_free_coherent+0xc0/0xd8 (P) tegra241_vintf_free_lvcmdq+0x74/0x188 tegra241_cmdqv_remove_vintf+0x60/0x148 tegra241_cmdqv_remove+0x48/0xc8 arm_smmu_impl_remove+0x28/0x60 devm_action_release+0x1c/0x40 ------------[ cortar aquí ]------------ ¡128 páginas aún están en uso! ADVERTENCIA: CPU: 16 PID: 1 en mm/page_alloc.c:6902 free_contig_range+0x18c/0x1c8 Rastreo de llamadas: free_contig_range+0x18c/0x1c8 (P) cma_release+0x154/0x2f0 dma_free_contiguous+0x38/0xa0 dma_direct_free+0x10c/0x248 dma_free_attrs+0x100/0x290 dmam_free_coherent+0x78/0xd8 tegra241_vintf_free_lvcmdq+0x74/0x160 tegra241_cmdqv_remove+0x98/0x198 arm_smmu_impl_remove+0x28/0x60 devm_action_release+0x1c/0x40 Esto se debe a que devres gestiona la memoria de la cola LVCMDQ, mientras que dmam_free_coherent() se llama en el contexto de devm_action_release(). Jason señaló que \"arm_smmu_impl_probe() ha ordenado incorrectamente las devoluciones de llamada de devres si ops->device_remove() va a liberar manualmente los recursos asignados por la sonda\": https://lore.kernel.org/linux-iommu/20250407174408.GB1722458@nvidia.com/ De hecho, tegra241_cmdqv_init_structures() solo asigna recursos de memoria, lo que significa que cualquier fallo que genere sería similar a -ENOMEM, por lo que no tiene sentido recurrir a la rutina SMMU estándar, ya que es probable que la SMMU estándar tampoco asigne memoria. Elimine la parte de desenrollado en tegra241_cmdqv_init_structures() y devuelva un código de error adecuado para solicitar al controlador SMMU que llame a tegra241_cmdqv_remove() mediante impl_ops->device_remove(). Luego, elimine tegra241_vintf_free_lvcmdq(), ya que devres se encargará de ello."}],"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":"6.12","versionEndExcluding":"6.12.24","matchCriteriaId":"0A7F4DC6-D8BB-41CD-97F3-E05815513305"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.13.12","matchCriteriaId":"4A475784-BF3B-4514-81EE-49C8522FB24A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.14.3","matchCriteriaId":"483E2E15-2135-4EC6-AB64-16282C5EF704"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*","matchCriteriaId":"8D465631-2980-487A-8E65-40AE2B9F8ED1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5584dbf393df509159813645a487b1ef76557722","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/767e22001dfce64cc03b7def1562338591ab6031","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e38ed6908080047d8fa1763d1da86b584f9eb55b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e5dd974d6e00704553308ef1a88659f8dcfb39d4","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}