CVE-2026-89468 (GCVE-0-2026-89468)
Vulnerability from cvelistv5
Published
2026-09-11 19:43
Modified
2026-10-21 12:47
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: power: supply: lp8788-charger: fix use-after-free on remove lp8788_charger_remove() flushes charger_work before unregistering the IRQs. An IRQ thread can queue charger_work after flush_work() has returned. The work can then run after devres frees pchg and dereference it in lp8788_charger_event(). Unregister the IRQs first. free_irq() waits for any running threaded handler, so no handler can queue more work afterwards. Then use cancel_work_sync() to cancel pending work or wait for running work to finish. This issue was found by an in-house static analysis tool.
References
Impacted products
Vendor Product Version
Linux Linux Version: 98a2766493589c18c327ae3dad5243b53fcb5f70
Version: 98a2766493589c18c327ae3dad5243b53fcb5f70
Version: 98a2766493589c18c327ae3dad5243b53fcb5f70
Version: 98a2766493589c18c327ae3dad5243b53fcb5f70
Version: 98a2766493589c18c327ae3dad5243b53fcb5f70
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/lp8788-charger.c"
          ],
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          "vendor": "Linux",
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        {
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.7"
            },
            {
              "lessThan": "3.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.160",
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              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.18.50",
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                },
                {
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                  "versionEndExcluding": "7.3",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: lp8788-charger: fix use-after-free on remove\n\nlp8788_charger_remove() flushes charger_work before unregistering the\nIRQs. An IRQ thread can queue charger_work after flush_work() has\nreturned. The work can then run after devres frees pchg and dereference\nit in lp8788_charger_event().\n\nUnregister the IRQs first. free_irq() waits for any running threaded\nhandler, so no handler can queue more work afterwards. Then use\ncancel_work_sync() to cancel pending work or wait for running work to\nfinish.\n\nThis issue was found by an in-house static analysis tool."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:47:33.974Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4e3d3923976a986cc3cf960d13f1264cea8a9bba"
        },
        {
          "url": "https://git.kernel.org/stable/c/88d8eadfad5d9ff967e74090152940bcfa27df69"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3aa1e9509e1b0a863353356d617fb45d1b6250a"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4eb6a056b441ba0caedfbfc42cec501acf12f67"
        },
        {
          "url": "https://git.kernel.org/stable/c/831c29a12d560f8a3225f43050b3fbb5dfd79c66"
        }
      ],
      "title": "power: supply: lp8788-charger: fix use-after-free on remove",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89468",
    "datePublished": "2026-09-11T19:43:27.906Z",
    "dateReserved": "2026-09-11T19:38:34.709Z",
    "dateUpdated": "2026-10-21T12:47:33.974Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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