{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-36908",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-36908"
  ],
  "published": "2024-05-30T15:29:45Z",
  "summary": "blk-iocost: do not WARN if iocg was already offlined",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-iocost: do not WARN if iocg was already offlined\n\nIn iocg_pay_debt(), warn is triggered if 'active_list' is empty, which\nis intended to confirm iocg is active when it has debt. However, warn\ncan be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn()\nis run at that time:\n\n  WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190\n  Call trace:\n  iocg_pay_debt+0x14c/0x190\n  iocg_kick_waitq+0x438/0x4c0\n  iocg_waitq_timer_fn+0xd8/0x130\n  __run_hrtimer+0x144/0x45c\n  __hrtimer_run_queues+0x16c/0x244\n  hrtimer_interrupt+0x2cc/0x7b0\n\nThe warn in this situation is meaningless. Since this iocg is being\nremoved, the state of the 'active_list' is irrelevant, and 'waitq_timer'\nis canceled after removing 'active_list' in ioc_pd_free(), which ensures\niocg is freed after iocg_waitq_timer_fn() returns.\n\nTherefore, add the check if iocg was already offlined to avoid warn\nwhen removing a blkcg or disk.",
  "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": "6.1.135",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-36908"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/56a9d07f427378eeb75b917bb49c6fbea8204126"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7d215e013d097ed6fc4b0ad0272c9514214dc408"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/aed0aac18f039dd4af13c143063754efca358cb0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1c172ac7afe4442964f4153b2c78fe4e005d9d67"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/14b3275f93d4a0d8ddc02195bc4e9869b7a3700e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/01bc4fda9ea0a6b52f12326486f07a4910666cf6"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}