8.4

CVE-2026-89469: linux

CVSS: 8.4v3.1HighReceived
AliasesUBUNTU-CVE-2026-89469DEBIAN-CVE-2026-89469
Published 11-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-89469 is a high (CVSS 8.4) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 2.8% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11880-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < 1321a4e6247164312eabc6d07f88572da2ee308c | ≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < dc1dc2837f8e53bde2f16d52a63f4142e21757f1 | ≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < 035cc6bc4d412dd4302862e8f859b784fcd4653b | ≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < 6f0ce09d60a0e4fab6f9ebe8294750481f0c19dd | ≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < 80d4e40a85ba524e66c8c748aa7bb19eaf2f69df | ≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < ab6b1ad710bed7931540733ce145493fece8ceef | ≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < 6ab3128292df67295de1b2a86f21d89cf6612a7e | ≥ d71fda01610269e3aaedd451f8d3e34cdf550036, < ceb6ac43b0f591722401922ceb958ce2616935e0 | 3.7

3 vendors · 172 products

References

13 links
Show all 13 references