CVE-2026-89469

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

State: Published
Severity: 8.4 High
Published: Sep 11, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

Description

In 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.

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d71fda01610269e3aaedd451f8d3e34cdf550036 to before 1321a4e6247164312eabc6d07f88572da2ee308cAffected d71fda01610269e3aaedd451f8d3e34cdf550036 to before dc1dc2837f8e53bde2f16d52a63f4142e21757f1Affected d71fda01610269e3aaedd451f8d3e34cdf550036 to before 035cc6bc4d412dd4302862e8f859b784fcd4653bAffected d71fda01610269e3aaedd451f8d3e34cdf550036 to before 6f0ce09d60a0e4fab6f9ebe8294750481f0c19ddAffected d71fda01610269e3aaedd451f8d3e34cdf550036 to before 80d4e40a85ba524e66c8c748aa7bb19eaf2f69dfAffected d71fda01610269e3aaedd451f8d3e34cdf550036 to before ab6b1ad710bed7931540733ce145493fece8ceefAffected d71fda01610269e3aaedd451f8d3e34cdf550036 to before 6ab3128292df67295de1b2a86f21d89cf6612a7eAffected d71fda01610269e3aaedd451f8d3e34cdf550036 to before ceb6ac43b0f591722401922ceb958ce2616935e0Affected
LinuxLinux	3.7Affected before 3.7Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.4 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

d71fda01610269e3aaedd451f8d3e34cdf550036 to before 1321a4e6247164312eabc6d07f88572da2ee308cAffected
d71fda01610269e3aaedd451f8d3e34cdf550036 to before dc1dc2837f8e53bde2f16d52a63f4142e21757f1Affected
d71fda01610269e3aaedd451f8d3e34cdf550036 to before 035cc6bc4d412dd4302862e8f859b784fcd4653bAffected
d71fda01610269e3aaedd451f8d3e34cdf550036 to before 6f0ce09d60a0e4fab6f9ebe8294750481f0c19ddAffected
d71fda01610269e3aaedd451f8d3e34cdf550036 to before 80d4e40a85ba524e66c8c748aa7bb19eaf2f69dfAffected
d71fda01610269e3aaedd451f8d3e34cdf550036 to before ab6b1ad710bed7931540733ce145493fece8ceefAffected
d71fda01610269e3aaedd451f8d3e34cdf550036 to before 6ab3128292df67295de1b2a86f21d89cf6612a7eAffected
d71fda01610269e3aaedd451f8d3e34cdf550036 to before ceb6ac43b0f591722401922ceb958ce2616935e0Affected

LinuxLinux

3.7Affected
before 3.7Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.4 through 7.2.*Not affected
7.3 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.