{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38722",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38722"
  ],
  "published": "2025-09-04T15:33:55Z",
  "summary": "habanalabs: fix UAF in export_dmabuf()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhabanalabs: fix UAF in export_dmabuf()\n\nAs soon as we'd inserted a file reference into descriptor table, another\nthread could close it.  That's fine for the case when all we are doing is\nreturning that descriptor to userland (it's a race, but it's a userland\nrace and there's nothing the kernel can do about it).  However, if we\nfollow fd_install() with any kind of access to objects that would be\ndestroyed on close (be it the struct file itself or anything destroyed\nby its ->release()), we have a UAF.\n\ndma_buf_fd() is a combination of reserving a descriptor and fd_install().\nhabanalabs export_dmabuf() calls it and then proceeds to access the\nobjects destroyed on close.  In particular, it grabs an extra reference to\nanother struct file that will be dropped as part of ->release() for ours;\nthat \"will be\" is actually \"might have already been\".\n\nFix that by reserving descriptor before anything else and do fd_install()\nonly when everything had been set up.  As a side benefit, we no longer\nhave the failure exit with file already created, but reference to\nunderlying file (as well as ->dmabuf_export_cnt, etc.) not grabbed yet;\nunlike dma_buf_fd(), fd_install() can't fail.",
  "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": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-38722"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c07886761fd6251db6938d4e747002e3d150d231"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/40deceb38f9db759772d1c289c28fd2a543f57fc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/55c232d7e0241f1d5120b595e7a9de24c75ed3d8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/33927f3d0ecdcff06326d6e4edb6166aed42811c"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}