GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-89467 (GCVE-0-2026-89467)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:43 – Updated: 2026-09-11 19:43
VLAI
Title
power: supply: qcom_battmgr: fix use-after-free
Summary
In the Linux kernel, the following vulnerability has been resolved: power: supply: qcom_battmgr: fix use-after-free qcom_battmgr_pdr_notify() queues enable_work when the PMIC GLINK service comes up, and the worker recovers battmgr through container_of() to issue firmware requests. The PMIC GLINK client stays on the client list until its devres release action runs, so a PDR notification can keep queueing the work, and a pending or running worker can access battmgr after devres frees it. Make enable_work device-managed with devm_work_autocancel(), registered before the PMIC GLINK client is allocated. The devres cleanup then releases the client first, so no further notification can queue the work, and cancels the work before battmgr is freed. This issue was found by an in-house static analysis tool.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 29e8142b5623b5949587bcc4f591c4e6595c4aca , < 06618447029c6dddaa02f6e9528efe5dd49fc329 (git)
Affected: 29e8142b5623b5949587bcc4f591c4e6595c4aca , < 49fbcd3da2958159370d25dafbf736e654a4d59b (git)
Affected: 29e8142b5623b5949587bcc4f591c4e6595c4aca , < 4e40befedfc8ed86f44e1f81df92d13c149c9f8d (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.18.50 , ≤ 6.18.* (semver)
Unaffected: 7.2.4 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/qcom_battmgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "06618447029c6dddaa02f6e9528efe5dd49fc329",
              "status": "affected",
              "version": "29e8142b5623b5949587bcc4f591c4e6595c4aca",
              "versionType": "git"
            },
            {
              "lessThan": "49fbcd3da2958159370d25dafbf736e654a4d59b",
              "status": "affected",
              "version": "29e8142b5623b5949587bcc4f591c4e6595c4aca",
              "versionType": "git"
            },
            {
              "lessThan": "4e40befedfc8ed86f44e1f81df92d13c149c9f8d",
              "status": "affected",
              "version": "29e8142b5623b5949587bcc4f591c4e6595c4aca",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/qcom_battmgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: qcom_battmgr: fix use-after-free\n\nqcom_battmgr_pdr_notify() queues enable_work when the PMIC GLINK service\ncomes up, and the worker recovers battmgr through container_of() to issue\nfirmware requests. The PMIC GLINK client stays on the client list until\nits devres release action runs, so a PDR notification can keep queueing\nthe work, and a pending or running worker can access battmgr after devres\nfrees it.\n\nMake enable_work device-managed with devm_work_autocancel(), registered\nbefore the PMIC GLINK client is allocated. The devres cleanup then\nreleases the client first, so no further notification can queue the work,\nand cancels the work before battmgr is freed.\n\nThis issue was found by an in-house static analysis tool."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T19:43:27.247Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/06618447029c6dddaa02f6e9528efe5dd49fc329"
        },
        {
          "url": "https://git.kernel.org/stable/c/49fbcd3da2958159370d25dafbf736e654a4d59b"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e40befedfc8ed86f44e1f81df92d13c149c9f8d"
        }
      ],
      "title": "power: supply: qcom_battmgr: fix use-after-free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89467",
    "datePublished": "2026-09-11T19:43:27.247Z",
    "dateReserved": "2026-09-11T19:38:34.709Z",
    "dateUpdated": "2026-09-11T19:43:27.247Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-89467",
      "date": "2026-09-17",
      "epss": "0.00166",
      "percentile": "0.06244"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-89467\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-11T20:19:27.793\",\"lastModified\":\"2026-09-11T20:19:27.793\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npower: supply: qcom_battmgr: fix use-after-free\\n\\nqcom_battmgr_pdr_notify() queues enable_work when the PMIC GLINK service\\ncomes up, and the worker recovers battmgr through container_of() to issue\\nfirmware requests. The PMIC GLINK client stays on the client list until\\nits devres release action runs, so a PDR notification can keep queueing\\nthe work, and a pending or running worker can access battmgr after devres\\nfrees it.\\n\\nMake enable_work device-managed with devm_work_autocancel(), registered\\nbefore the PMIC GLINK client is allocated. The devres cleanup then\\nreleases the client first, so no further notification can queue the work,\\nand cancels the work before battmgr is freed.\\n\\nThis issue was found by an in-house static analysis tool.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/power/supply/qcom_battmgr.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"29e8142b5623b5949587bcc4f591c4e6595c4aca\",\"lessThan\":\"06618447029c6dddaa02f6e9528efe5dd49fc329\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29e8142b5623b5949587bcc4f591c4e6595c4aca\",\"lessThan\":\"49fbcd3da2958159370d25dafbf736e654a4d59b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29e8142b5623b5949587bcc4f591c4e6595c4aca\",\"lessThan\":\"4e40befedfc8ed86f44e1f81df92d13c149c9f8d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/power/supply/qcom_battmgr.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.3\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.3\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.50\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.4\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/06618447029c6dddaa02f6e9528efe5dd49fc329\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/49fbcd3da2958159370d25dafbf736e654a4d59b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4e40befedfc8ed86f44e1f81df92d13c149c9f8d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-15T04:48:14+00:00",
      "cve": "CVE-2026-89467",
      "id": "CVE-2026-89467",
      "initial_release_date": "2026-09-11T19:43:27.247000+00:00",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: `qcom_battmgr` use-after-free vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89467.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-16T00:03:23Z",
      "cve": "CVE-2026-89467",
      "id": "CVE-2026-89467",
      "initial_release_date": "2026-09-12T16:28:00Z",
      "product_status:known_affected": "114",
      "product_status:known_not_affected": "239",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-89467",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-89467.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.