power: supply: lp8727: fix use-after-free in lp8727_release_irq()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89469
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: lp8727: fix use-after-free in lp8727_release_irq() lp8727_isr_func(), the threaded IRQ handler, is the only caller that arms pchg->work via schedule_delayed_work(). lp8727_release_irq() currently cancels the work before freeing the IRQ, so an IRQ delivered in between can re-arm the work through the threaded handler. After .remove returns the devm layer frees pchg while lp8727_delayed_func() may still run and dereference it. Free the IRQ first so the threaded handler is quiesced and can no longer queue work, then cancel the delayed work to drain the final generation. This issue was found by an in-house static analysis tool.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d71fda01610269e3aaedd451f8d3e34cdf550036 80d4e40a85ba524e66c8c748aa7bb19eaf2f69df git Not specified
CNA Linux Linux affected d71fda01610269e3aaedd451f8d3e34cdf550036 ab6b1ad710bed7931540733ce145493fece8ceef git Not specified
CNA Linux Linux affected d71fda01610269e3aaedd451f8d3e34cdf550036 6ab3128292df67295de1b2a86f21d89cf6612a7e git Not specified
CNA Linux Linux affected d71fda01610269e3aaedd451f8d3e34cdf550036 ceb6ac43b0f591722401922ceb958ce2616935e0 git Not specified
CNA Linux Linux affected 3.7 Not specified
CNA Linux Linux unaffected 3.7 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/ceb6ac43b0f591722401922ceb958ce2616935e0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ab6b1ad710bed7931540733ce145493fece8ceef 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6ab3128292df67295de1b2a86f21d89cf6612a7e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/80d4e40a85ba524e66c8c748aa7bb19eaf2f69df 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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