power: supply: bq25890: Fix power_supply reference leak

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Summary

CVECVE-2026-89473
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: bq25890: Fix power_supply reference leak bq25890_fw_probe() acquires a reference to a secondary charger using power_supply_get_by_name(), but the reference is not released on later probe failures or on driver detach. In particular, failures after bq25890_fw_probe() returns successfully, such as a failure in bq25890_hw_init(), also leak the reference. Register a device-managed cleanup action immediately after acquiring the secondary charger. This releases the reference on all subsequent probe failures and on driver detach. Found by code review.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d54bf877fd878ee45cbc88d399fb98b0b1c4484d 81b558afda9321c1a70971a39071d156f3e26950 git Not specified
CNA Linux Linux affected d54bf877fd878ee45cbc88d399fb98b0b1c4484d 238320ad029a3eedabb86286a28cab55bca629b9 git Not specified
CNA Linux Linux affected d54bf877fd878ee45cbc88d399fb98b0b1c4484d 58f1025eca92734eadc063715b98f62538286468 git Not specified
CNA Linux Linux affected d54bf877fd878ee45cbc88d399fb98b0b1c4484d 863c32a83e4235eb0cbf6106f2b124e645302156 git Not specified
CNA Linux Linux affected 6.3 Not specified
CNA Linux Linux unaffected 6.3 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/863c32a83e4235eb0cbf6106f2b124e645302156 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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