{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-39907",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-39907"
  ],
  "published": "2025-10-01T07:47:34Z",
  "summary": "mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer\n\nAvoid below overlapping mappings by using a contiguous\nnon-cacheable buffer.\n\n[    4.077708] DMA-API: stm32_fmc2_nfc 48810000.nand-controller: cacheline tracking EEXIST,\noverlapping mappings aren't supported\n[    4.089103] WARNING: CPU: 1 PID: 44 at kernel/dma/debug.c:568 add_dma_entry+0x23c/0x300\n[    4.097071] Modules linked in:\n[    4.100101] CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 6.1.82 #1\n[    4.106346] Hardware name: STMicroelectronics STM32MP257F VALID1 SNOR / MB1704 (LPDDR4 Power discrete) + MB1703 + MB1708 (SNOR MB1730) (DT)\n[    4.118824] Workqueue: events_unbound deferred_probe_work_func\n[    4.124674] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    4.131624] pc : add_dma_entry+0x23c/0x300\n[    4.135658] lr : add_dma_entry+0x23c/0x300\n[    4.139792] sp : ffff800009dbb490\n[    4.143016] x29: ffff800009dbb4a0 x28: 0000000004008022 x27: ffff8000098a6000\n[    4.150174] x26: 0000000000000000 x25: ffff8000099e7000 x24: ffff8000099e7de8\n[    4.157231] x23: 00000000ffffffff x22: 0000000000000000 x21: ffff8000098a6a20\n[    4.164388] x20: ffff000080964180 x19: ffff800009819ba0 x18: 0000000000000006\n[    4.171545] x17: 6361727420656e69 x16: 6c6568636163203a x15: 72656c6c6f72746e\n[    4.178602] x14: 6f632d646e616e2e x13: ffff800009832f58 x12: 00000000000004ec\n[    4.185759] x11: 00000000000001a4 x10: ffff80000988af58 x9 : ffff800009832f58\n[    4.192916] x8 : 00000000ffffefff x7 : ffff80000988af58 x6 : 80000000fffff000\n[    4.199972] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000\n[    4.207128] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000812d2c40\n[    4.214185] Call trace:\n[    4.216605]  add_dma_entry+0x23c/0x300\n[    4.220338]  debug_dma_map_sg+0x198/0x350\n[    4.224373]  __dma_map_sg_attrs+0xa0/0x110\n[    4.228411]  dma_map_sg_attrs+0x10/0x2c\n[    4.232247]  stm32_fmc2_nfc_xfer.isra.0+0x1c8/0x3fc\n[    4.237088]  stm32_fmc2_nfc_seq_read_page+0xc8/0x174\n[    4.242127]  nand_read_oob+0x1d4/0x8e0\n[    4.245861]  mtd_read_oob_std+0x58/0x84\n[    4.249596]  mtd_read_oob+0x90/0x150\n[    4.253231]  mtd_read+0x68/0xac",
  "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": "6.1.153",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-39907"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dc1c6e60993b93b87604eb11266ac72e1a3be9e0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dfe2ac47a6ee0ab50393694517c54ef1e276dda3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e32a2ea52b51368774d014e5bcd9b86110a2b727"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/75686c49574dd5f171ca682c18717787f1d8d55e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/06d8ef8f853752fea88c8d5bb093a40e71b330cf"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/26adba1e7d7924174e15a3ba4b1132990786300b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f6fd98d961fa6f97347cead4f08ed862cbbb91ff"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/513c40e59d5a414ab763a9c84797534b5e8c208d"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}