CVE-2026-45869 | power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()

In the Linux kernel, the following vulnerability has been resolved: power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed() In `probe()`, `request_irq()` is called before allocating/registering a `power_supply` handle. If an interrupt is fired between the call to `request_irq()` and `power_supply_register()`, the `power_supply` handle will be used uninitialized in `power_supply_changed()` in `wm97xx_bat_update()` (triggered from the interrupt handler). This will lead to a `NULL` pointer dereference since Fix this racy `NULL` pointer dereference by making sure the IRQ is requested _after_ the registration of the `power_supply` handle. Since the IRQ is the last thing requests in the `probe()` now, remove the error path for freeing it. Instead add one for unregistering the `power_supply` handle when IRQ request fails.

Published: 2026-05-27 Last update: 2026-05-27 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Conclusion & alert: CVE-2026-45869 is rated Low Risk (7.4/100): low exploitation likelihood (EPSS 0.02%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-45869

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 0.02%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-45869

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2026-45869

GitHub Security Advisory for CVE-2026-45869

GHSA-7c8r-gw7p-h2xw · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: power: supply: wm97xx: Fix...

OS Trackers for CVE-2026-45869

vendor priority summary link
debian not yet assigned CVE-2026-45869 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2026-45869
redhat https://access.redhat.com/security/cve/CVE-2026-45869
suse medium CVE-2026-45869 severity moderate: SUSE including 16 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 54 product×package rows across 14 product lines (SUSE Linux Enterprise High Availability Extension 15 SP7, SUSE Linux Enterprise Live Patching 15 SP7, … (14 product lines)): Known Not Affected 54. https://www.suse.com/security/cve/CVE-2026-45869/
ubuntu medium CVE-2026-45869 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1422 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1024, ignored 173, needed 112, released 84, pending 18, not-affected 10, needs-triage 1. https://ubuntu.com/security/CVE-2026-45869

Affected software / configurations for CVE-2026-45869

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-45869

cvelogic Threat Intelligence