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power: supply: rt9455: quiesce delayed work before teardown

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: quiesce delayed work before teardown The threaded IRQ handler can queue pwr_rdy_work, max_charging_time_work and batt_presence_work. pwr_rdy_work and batt_presence_work can also queue max_charging_time_work, while batt_presence_work can requeue itself. rt9455_remove() cancels max_charging_time_work before batt_presence_work. The latter can therefore queue max_charging_time_work after it has already been cancelled: rt9455_remove() workqueue cancel pwr_rdy_work cancel max_charging_time_work batt_presence_work queues max_charging_time_work cancel batt_presence_work return devres frees rt9455_info max_charging_time_work dereferences rt9455_info The IRQ also remains registered until devres cleanup and can queue more work after any of the cancellation calls. If rt9455_hw_init() fails after the IRQ has been requested, probe returns without cancelling work that may already have been queued. A pending callback can then access rt9455_info after it has been freed. Register rt9455_cancel_all_delayed_works() through devm_add_action_or_reset() right after devm_power_supply_register(). devres invokes the action in reverse registration order, after the managed IRQ has been freed and before rt9455_info is released, so the delayed works are drained in both rt9455_remove() and the probe error path. Cancel pwr_rdy_work and batt_presence_work before max_charging_time_work because both can queue the latter.

Announced Source revision 1
Original source ↗

CVE-2026-89465

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-2026-89465

Linux

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

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
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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": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a",
        "lessThan": "442c60c08ec23ac45da0a58877cab05e0a58f4ea",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a",
        "lessThan": "df67c7a2fff8414aa766b8cd5ffe11ec1ca27d02",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a",
        "lessThan": "1b9978433c61a9b46e48832a1ebceee1cf5c9eb4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a",
        "lessThan": "7323e562f6961e4b7bce3225cde4ecbc78260deb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a",
        "lessThan": "3e7a1ebc32fad5a558254a478efd401c17a24381",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/power/supply/rt9455_charger.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.2",
        "versionType": "semver"
      },
      {
        "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/rt9455_charger.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89465

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#34996 · Revision 1
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Publisher date
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