CVE-2024-38663 (GCVE-0-2024-38663)

Vulnerability from cvelistv5 – Published: 2024-06-24 13:50 – Updated: 2026-08-05 11:33
VLAI
Title
blk-cgroup: fix list corruption from resetting io stat
Summary
In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from resetting io stat Since commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()"), each iostat instance is added to blkcg percpu list, so blkcg_reset_stats() can't reset the stat instance by memset(), otherwise the llist may be corrupted. Fix the issue by only resetting the counter part.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-25 13:51 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6820 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3b8cc6298724021da845f2f9fd7dd4b6829a6817 , < d4a60298ac34f027a09f8f893fdbd9e06279bb24 (git)
Affected: 3b8cc6298724021da845f2f9fd7dd4b6829a6817 , < 89bb36c72e1951843f9e04dc84412e31fcc849a9 (git)
Affected: 3b8cc6298724021da845f2f9fd7dd4b6829a6817 , < 6da6680632792709cecf2b006f2fe3ca7857e791 (git)
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Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.33 , ≤ 6.6.* (semver)
Unaffected: 6.9.4 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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              "product": "Linux",
              "programFiles": [
                "block/blk-cgroup.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "d4a60298ac34f027a09f8f893fdbd9e06279bb24",
                  "status": "affected",
                  "version": "3b8cc6298724021da845f2f9fd7dd4b6829a6817",
                  "versionType": "git"
                },
                {
                  "lessThan": "89bb36c72e1951843f9e04dc84412e31fcc849a9",
                  "status": "affected",
                  "version": "3b8cc6298724021da845f2f9fd7dd4b6829a6817",
                  "versionType": "git"
                },
                {
                  "lessThan": "6da6680632792709cecf2b006f2fe3ca7857e791",
                  "status": "affected",
                  "version": "3b8cc6298724021da845f2f9fd7dd4b6829a6817",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "block/blk-cgroup.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.2"
                },
                {
                  "lessThan": "6.2",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.33",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.9.*",
                  "status": "unaffected",
                  "version": "6.9.4",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.10",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: fix list corruption from resetting io stat\n\nSince commit 3b8cc6298724 (\"blk-cgroup: Optimize blkcg_rstat_flush()\"),\neach iostat instance is added to blkcg percpu list, so blkcg_reset_stats()\ncan\u0027t reset the stat instance by memset(), otherwise the llist may be\ncorrupted.\n\nFix the issue by only resetting the counter part."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-12-19T09:06:20.971Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24"
            },
            {
              "url": "https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9"
            },
            {
              "url": "https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791"
            }
          ],
          "title": "blk-cgroup: fix list corruption from resetting io stat",
          "x_generator": {
            "engine": "bippy-5f407fcff5a0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-38663",
        "datePublished": "2024-06-24T13:50:51.710Z",
        "dateReserved": "2024-06-21T11:16:40.592Z",
        "dateUpdated": "2024-12-19T09:06:20.971Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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