iommu/tegra241-cmdqv: Fix warnings due to dmam_free_coherent()

{
  "id": "f33d22a50de97d8ecd1364878b65c310c02ce41671723af96a609f74bb92766b",
  "url": "https://osv.dev/vulnerability/CVE-2025-37837",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iommu/tegra241-cmdqv: Fix warnings due to dmam_free_coherent()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Fix warnings due to dmam_free_coherent() Two WARNINGs are observed when SMMU driver rolls back upon failure: arm-smmu-v3.9.auto: Failed to register iommu arm-smmu-v3.9.auto: probe with driver arm-smmu-v3 failed with error -22 ------------[ cut here ]------------ WARNING: CPU: 5 PID: 1 at kernel/dma/mapping.c:74 dmam_free_coherent+0xc0/0xd8 Call trace: 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 ------------[ cut here ]------------ 128 pages are still in use! WARNING: CPU: 16 PID: 1 at mm/page_alloc.c:6902 free_contig_range+0x18c/0x1c8 Call trace: 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 This is because the LVCMDQ queue memory are managed by devres, while that dmam_free_coherent() is called in the context of devm_action_release(). Jason pointed out that \"arm_smmu_impl_probe() has mis-ordered the devres callbacks if ops->device_remove() is going to be manually freeing things that probe allocated\": https://lore.kernel.org/linux-iommu/20250407174408.GB1722458@nvidia.com/ In fac",
    "evidence": "osv:CVE-2025-37837",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.24",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.13.12",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-37837",
      "aliases": [
        "CVE-2025-37837"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "483e0bd8883a40fd3dd3193997a4014337698d72"
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                {
                  "fixed": "e5dd974d6e00704553308ef1a88659f8dcfb39d4"
                },
                {
                  "fixed": "5584dbf393df509159813645a487b1ef76557722"
                },
                {
                  "fixed": "e38ed6908080047d8fa1763d1da86b584f9eb55b"
                },
                {
                  "fixed": "767e22001dfce64cc03b7def1562338591ab6031"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37837.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.12.0"
                },
                {
                  "fixed": "6.12.24"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.13.12"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.14.0"
                },
                {
                  "fixed": "6.14.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37837.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.637142023Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/5584dbf393df509159813645a487b1ef76557722",
        "https://git.kernel.org/stable/c/767e22001dfce64cc03b7def1562338591ab6031",
        "https://git.kernel.org/stable/c/e38ed6908080047d8fa1763d1da86b584f9eb55b",
        "https://git.kernel.org/stable/c/e5dd974d6e00704553308ef1a88659f8dcfb39d4",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37837.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37837",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37837.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37837",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 517735,
  "published_at": "2025-05-09T06:41:48.164+00:00"
}