{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93183",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93183"
  ],
  "published": "2026-09-17T16:10:40Z",
  "summary": "drm/lima: call drm_mm_init() with a valid allocation range",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/lima: call drm_mm_init() with a valid allocation range\n\nlima_vm_create() is currently run before va_start and va_end are set up,\nmeaning they are both 0. lima_vm_create() runs drm_mm_init() with them\nas arguments for the allocator, and if DRM_DEBUG_MM is enabled the\nDRM_MM_BUG_ON check in drm_mm_init then fires, as seen here on\nexynos4412-odroid-u2:\n\n[    1.736297] ------------[ cut here ]------------\n[    1.740370] kernel BUG at drivers/gpu/drm/drm_mm.c:931!\n[    1.745574] Internal error: Oops - BUG: 0 [#1] SMP ARM\n[    1.750697] Modules linked in:\n[    1.753734] CPU: 0 UID: 0 PID: 41 Comm: kworker/u16:1 Not tainted 7.0.10-postmarketos-exynos4 #11 PREEMPT\n[    1.763372] Hardware name: Samsung Exynos (Flattened Device Tree)\n[    1.769446] Workqueue: events_unbound deferred_probe_work_func\n[    1.775261] PC is at drm_mm_init+0x9c/0xa4\n[    1.779339] LR is at lima_vm_create+0x144/0x17c\n[ ... ]\n\nFix the issue by moving the lima_vm_create() call after va_start and\nva_end are set up.",
  "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": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93183"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/af1f276d50c9d7ebcd25770f358ca503a89d96d7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ad4e908096dff97646f77b04e2e2825225e215f7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/788917ba77f5d69bd368c1d176ecceda346a2951"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/79a3331ee436c8b1454f897d539606c9b5ebdf9f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e2a7cee341986cb5b544a8286edc7fb0494c592e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e0773ad25a34a49aece176721c466cf214e02222"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-17T16:10:40Z"
  }
}