cve-2024-36908
Vulnerability from cvelistv5
Published
2024-05-30 15:29
Modified
2024-12-19 09:01
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: blk-iocost: do not WARN if iocg was already offlined In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/01bc4fda9ea0a6b52f12326486f07a4910666cf6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14b3275f93d4a0d8ddc02195bc4e9869b7a3700e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c172ac7afe4442964f4153b2c78fe4e005d9d67
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/01bc4fda9ea0a6b52f12326486f07a4910666cf6
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/14b3275f93d4a0d8ddc02195bc4e9869b7a3700e
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1c172ac7afe4442964f4153b2c78fe4e005d9d67
Impacted products
Vendor Product Version
Linux Linux Version: 5.4
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-36908",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-31T18:30:12.396680Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-07T16:16:27.980Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:43:49.881Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1c172ac7afe4442964f4153b2c78fe4e005d9d67"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/14b3275f93d4a0d8ddc02195bc4e9869b7a3700e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/01bc4fda9ea0a6b52f12326486f07a4910666cf6"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/blk-iocost.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1c172ac7afe4442964f4153b2c78fe4e005d9d67",
              "status": "affected",
              "version": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
              "versionType": "git"
            },
            {
              "lessThan": "14b3275f93d4a0d8ddc02195bc4e9869b7a3700e",
              "status": "affected",
              "version": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
              "versionType": "git"
            },
            {
              "lessThan": "01bc4fda9ea0a6b52f12326486f07a4910666cf6",
              "status": "affected",
              "version": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "block/blk-iocost.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.31",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 \u0027active_list\u0027 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 \u0027active_list\u0027 is irrelevant, and \u0027waitq_timer\u0027\nis canceled after removing \u0027active_list\u0027 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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:01:50.579Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1c172ac7afe4442964f4153b2c78fe4e005d9d67"
        },
        {
          "url": "https://git.kernel.org/stable/c/14b3275f93d4a0d8ddc02195bc4e9869b7a3700e"
        },
        {
          "url": "https://git.kernel.org/stable/c/01bc4fda9ea0a6b52f12326486f07a4910666cf6"
        }
      ],
      "title": "blk-iocost: do not WARN if iocg was already offlined",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-36908",
    "datePublished": "2024-05-30T15:29:07.773Z",
    "dateReserved": "2024-05-30T15:25:07.067Z",
    "dateUpdated": "2024-12-19T09:01:50.579Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-36908\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-30T16:15:14.300\",\"lastModified\":\"2024-11-21T09:22:47.393\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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 \u0027active_list\u0027 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 \u0027active_list\u0027 is irrelevant, and \u0027waitq_timer\u0027\\nis canceled after removing \u0027active_list\u0027 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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: blk-iocost: no ADVERTIR si iocg ya estaba desconectado. En iocg_pay_debt(), se activa una advertencia si \u0027active_list\u0027 est\u00e1 vac\u00eda, lo que pretende confirmar que iocg est\u00e1 activo cuando deuda. Sin embargo, se puede activar una advertencia durante un blkcg o la eliminaci\u00f3n de un disco, si se ejecuta iocg_waitq_timer_fn() en ese momento: ADVERTENCIA: CPU: 0 PID: 2344971 en block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Seguimiento de llamadas: iocg_pay_debt +0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 La advertencia en esta situaci\u00f3n es sin sentido. Dado que este iocg se est\u00e1 eliminando, el estado de \u0027active_list\u0027 es irrelevante y \u0027waitq_timer\u0027 se cancela despu\u00e9s de eliminar \u0027active_list\u0027 en ioc_pd_free(), lo que garantiza que iocg se libere despu\u00e9s de que iocg_waitq_timer_fn() regrese. Por lo tanto, agregue la verificaci\u00f3n si iocg ya estaba desconectado para evitar advertencias al eliminar un blkcg o un disco.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01bc4fda9ea0a6b52f12326486f07a4910666cf6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/14b3275f93d4a0d8ddc02195bc4e9869b7a3700e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1c172ac7afe4442964f4153b2c78fe4e005d9d67\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/01bc4fda9ea0a6b52f12326486f07a4910666cf6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/14b3275f93d4a0d8ddc02195bc4e9869b7a3700e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/1c172ac7afe4442964f4153b2c78fe4e005d9d67\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.