High severity · published Sep 11, 2026
CVE-2026-89469
power: supply: lp8727: fix use-after-free in lp8727_release_irq()
8.4
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
d71fda01610269e3aaedd451f8d3e34cdf550036 before 1321a4e6247164312eabc6d07f88572da2ee308c; d71fda01610269e3aaedd451f8d3e34cdf550036 before dc1dc2837f8e53bde2f16d52a63f4142e21757f1; d71fda01610269e3aaedd451f8d3e34cdf550036 before 035cc6bc4d412dd4302862e8f859b784fcd4653b; d71fda01610269e3aaedd451f8d3e34cdf550036 before 6f0ce09d60a0e4fab6f9ebe8294750481f0c19dd; d71fda01610269e3aaedd451f8d3e34cdf550036 before 80d4e40a85ba524e66c8c748aa7bb19eaf2f69df; d71fda01610269e3aaedd451f8d3e34cdf550036 before ab6b1ad710bed7931540733ce145493fece8ceef; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89469
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89469
git.kernel.org
https://git.kernel.org/stable/c/035cc6bc4d412dd4302862e8f859b784fcd4653b
git.kernel.org
https://git.kernel.org/stable/c/1321a4e6247164312eabc6d07f88572da2ee308c
git.kernel.org
https://git.kernel.org/stable/c/6ab3128292df67295de1b2a86f21d89cf6612a7e
git.kernel.org
https://git.kernel.org/stable/c/6f0ce09d60a0e4fab6f9ebe8294750481f0c19dd
git.kernel.org
https://git.kernel.org/stable/c/80d4e40a85ba524e66c8c748aa7bb19eaf2f69df
git.kernel.org
https://git.kernel.org/stable/c/ab6b1ad710bed7931540733ce145493fece8ceef
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