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power: supply: ucs1002: fix use-after-free on remove

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: power: supply: ucs1002: fix use-after-free on remove ucs1002 has no remove callback, so unbind runs entirely through devm. The alert IRQ handler queues the health_poll delayed work, and the work reschedules itself while the chip reports a bad-health condition. devm frees the alert IRQ, which only synchronizes the handler; it does not cancel the delayed work, which can then run after devm frees the driver data and dereference it. Register health_poll with devm_delayed_work_autocancel() before the alert IRQ is requested. devm then frees the IRQ before cancelling the work, so the handler can no longer queue it and the work is cancelled before the driver data is freed. This issue was found by an in-house static analysis tool.

Announced Source revision 1
Original source ↗

CVE-2026-89463

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-89463

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "81196e2e57fc5b88f6b8ca98372a3dde047aa49d",
        "lessThan": "00c19f8a9a58a318a76fd6f735a8aab3f8ead393",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "81196e2e57fc5b88f6b8ca98372a3dde047aa49d",
        "lessThan": "a9a7bb801c443a4d9fc623c4a47deb53accb70bb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "81196e2e57fc5b88f6b8ca98372a3dde047aa49d",
        "lessThan": "2ec4d203ecb06d327af67e32097fe8f774838a40",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "81196e2e57fc5b88f6b8ca98372a3dde047aa49d",
        "lessThan": "4ca2a4678202f15eb790eb7f1d562061709caea7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "81196e2e57fc5b88f6b8ca98372a3dde047aa49d",
        "lessThan": "39b60d615dfa1725c235351fb12bc72e5f8a8d32",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "81196e2e57fc5b88f6b8ca98372a3dde047aa49d",
        "lessThan": "35242c93d35f391afdc84cef6236b8ad57f1df24",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "81196e2e57fc5b88f6b8ca98372a3dde047aa49d",
        "lessThan": "609af0ceeaefdfa42cd01dd060b20f2e41f9a232",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/power/supply/ucs1002_power.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.109",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.50",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.4",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/power/supply/ucs1002_power.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89463

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#34993 · Revision 1
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Publisher date
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