{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-26787",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-26787"
  ],
  "published": "2024-04-04T08:23:56Z",
  "summary": "mmc: mmci: stm32: fix DMA API overlapping mappings warning",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mmci: stm32: fix DMA API overlapping mappings warning\n\nTurning on CONFIG_DMA_API_DEBUG_SG results in the following warning:\n\nDMA-API: mmci-pl18x 48220000.mmc: cacheline tracking EEXIST,\noverlapping mappings aren't supported\nWARNING: CPU: 1 PID: 51 at kernel/dma/debug.c:568\nadd_dma_entry+0x234/0x2f4\nModules linked in:\nCPU: 1 PID: 51 Comm: kworker/1:2 Not tainted 6.1.28 #1\nHardware name: STMicroelectronics STM32MP257F-EV1 Evaluation Board (DT)\nWorkqueue: events_freezable mmc_rescan\nCall trace:\nadd_dma_entry+0x234/0x2f4\ndebug_dma_map_sg+0x198/0x350\n__dma_map_sg_attrs+0xa0/0x110\ndma_map_sg_attrs+0x10/0x2c\nsdmmc_idma_prep_data+0x80/0xc0\nmmci_prep_data+0x38/0x84\nmmci_start_data+0x108/0x2dc\nmmci_request+0xe4/0x190\n__mmc_start_request+0x68/0x140\nmmc_start_request+0x94/0xc0\nmmc_wait_for_req+0x70/0x100\nmmc_send_tuning+0x108/0x1ac\nsdmmc_execute_tuning+0x14c/0x210\nmmc_execute_tuning+0x48/0xec\nmmc_sd_init_uhs_card.part.0+0x208/0x464\nmmc_sd_init_card+0x318/0x89c\nmmc_attach_sd+0xe4/0x180\nmmc_rescan+0x244/0x320\n\nDMA API debug brings to light leaking dma-mappings as dma_map_sg and\ndma_unmap_sg are not correctly balanced.\n\nIf an error occurs in mmci_cmd_irq function, only mmci_dma_error\nfunction is called and as this API is not managed on stm32 variant,\ndma_unmap_sg is never called in this error path.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.81",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-26787"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0224cbc53ba82b84affa7619b6d1b1a254bc2c53"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5ae5060e17a3fc38e54c3e5bd8abd6b1d5bfae7c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/70af82bb9c897faa25a44e4181f36c60312b71ef"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/176e66269f0de327375fc0ea51c12c2f5a97e4c4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d610a307225951929b9dff807788439454476f85"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6b1ba3f9040be5efc4396d86c9752cdc564730be"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}