power: supply: bq256xx: drain usb_work before freeing the charger

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89474
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:28 UTC
Updated2026-09-11 20:19:28 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: power: supply: bq256xx: drain usb_work before freeing the charger The USB-PHY notifier queues usb_work, whose handler calls power_supply_changed(bq->charger). The reset devm action only unregisters the notifier and was registered before the power supplies, so devm frees bq->charger on unwind before the action runs; a usb_work still queued can then dereference it. Register the reset action after the power supplies, so it unregisters the notifiers and drains usb_work before the supplies are released. Initialize usb_work and obtain the PHY references before registering the notifiers, so the worker cannot run before the supplies exist. Found by static analysis.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 32e4978bb920d047fe5de3ea42d176f267c01f63 9a467bd1e6811011026ad4c8de701b940d88a00c git Not specified
CNA Linux Linux affected 32e4978bb920d047fe5de3ea42d176f267c01f63 9e1aba34df9a87d53460888e05718717c0f69343 git Not specified
CNA Linux Linux affected 32e4978bb920d047fe5de3ea42d176f267c01f63 c8addb842ae8dcf69c15fc976e33e3bd538a41d7 git Not specified
CNA Linux Linux affected 32e4978bb920d047fe5de3ea42d176f267c01f63 2dd6cd823777bea6d9a880a12a92a73ec76aee0b git Not specified
CNA Linux Linux affected 5.12 Not specified
CNA Linux Linux unaffected 5.12 semver Not specified
CNA Linux Linux unaffected 6.12.109 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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