{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-68324",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-68324"
  ],
  "published": "2025-12-18T15:03:14Z",
  "summary": "scsi: imm: Fix use-after-free bug caused by unfinished delayed work",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: imm: Fix use-after-free bug caused by unfinished delayed work\n\nThe delayed work item 'imm_tq' is initialized in imm_attach() and\nscheduled via imm_queuecommand() for processing SCSI commands.  When the\nIMM parallel port SCSI host adapter is detached through imm_detach(),\nthe imm_struct device instance is deallocated.\n\nHowever, the delayed work might still be pending or executing\nwhen imm_detach() is called, leading to use-after-free bugs\nwhen the work function imm_interrupt() accesses the already\nfreed imm_struct memory.\n\nThe race condition can occur as follows:\n\nCPU 0(detach thread)   | CPU 1\n                       | imm_queuecommand()\n                       |   imm_queuecommand_lck()\nimm_detach()           |     schedule_delayed_work()\n  kfree(dev) //FREE    | imm_interrupt()\n                       |   dev = container_of(...) //USE\n                           dev-> //USE\n\nAdd disable_delayed_work_sync() in imm_detach() to guarantee proper\ncancellation of the delayed work item before imm_struct is deallocated.",
  "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-2025-68324"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/31ab2aad7a7b7501e904a09bf361e44671f66092"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/48dd41fa2d6c6a0c50e714deeba06ffe7f91961b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9e434426cc23ad5e2aad649327b59aea00294b13"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ab58153ec64fa3fc9aea09ca09dc9322e0b54a7c"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}