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CVE PROGRAM SOURCE RECORD8.4 High

CVE-2026-89465

power: supply: rt9455: quiesce delayed work before teardown

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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. This issue was found by an in-house static analysis tool.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < 3def4721431f3e374e1e3124f4d32bb07ae8df1caffected
  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < c8645073876cbb1cdc8c2b995d093d08facfb187affected
  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < c09a2e4f8f101a44bd786a31696c958473469be0affected
  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < 442c60c08ec23ac45da0a58877cab05e0a58f4eaaffected
  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < df67c7a2fff8414aa766b8cd5ffe11ec1ca27d02affected
  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < 1b9978433c61a9b46e48832a1ebceee1cf5c9eb4affected
  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < 7323e562f6961e4b7bce3225cde4ecbc78260debaffected
  • e86d69dd786e94046b8f5be7df1b9a8226a40b2a to < 3e7a1ebc32fad5a558254a478efd401c17a24381affected

Linux Linux

Default version status: affected

  • 4.2affected
  • 0 to < 4.2unaffected
  • 5.10.273 to ≤ 5.10.*unaffected
  • 5.15.224 to ≤ 5.15.*unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.157 to ≤ 6.6.*unaffected
  • 6.12.109 to ≤ 6.12.*unaffected
  • 6.18.50 to ≤ 6.18.*unaffected
  • 7.2.4 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References