In the Linux kernel, the following vulnerability has been resolved: ACPI: button: Fix ACPI GPE handler leak during removal Commit a7e23ec17fee… (CVE-2026-64013)
A vulnerability in the Linux kernel's ACPI button driver was resolved that involved a leak of the ACPI General Purpose Event (GPE) notify handler during driver removal. The issue occurred because the notify handler type was changed but the removal function was not updated accordingly, causing the handler to remain registered after the driver was removed. This could lead to a kernel crash if an ACPI notify event triggered after driver removal, and also cause subsequent driver probes to fail.
AI Analysis
Technical Summary
The Linux kernel ACPI button driver changed its notify handler type to ACPI_ALL_NOTIFY in commit a7e23ec17fee but failed to update the acpi_button_remove() function to remove the handler correctly. This resulted in the notify handler leaking past driver removal, which may cause kernel crashes if ACPI notify events occur after removal and prevent successful re-probing of the device with the same driver. The vulnerability was fixed by updating the acpi_remove_notify_handler() call in acpi_button_remove() to properly remove the handler.
Potential Impact
If exploited, this vulnerability can cause kernel crashes due to use-after-removal of the ACPI notify handler. It also disrupts normal device driver operation by causing subsequent driver probes to fail. There is no indication of remote exploitation or privilege escalation from the provided data.
Mitigation Recommendations
A fix has been implemented in the Linux kernel source code to update the acpi_button_remove() function to correctly remove the ACPI notify handler. Users should apply the official Linux kernel updates that include this fix. Patch status is not explicitly confirmed in the provided data; check the Linux kernel vendor advisory or source repository for the exact fixed versions and apply the update accordingly.
In the Linux kernel, the following vulnerability has been resolved: ACPI: button: Fix ACPI GPE handler leak during removal Commit a7e23ec17fee… (CVE-2026-64013)
Description
A vulnerability in the Linux kernel's ACPI button driver was resolved that involved a leak of the ACPI General Purpose Event (GPE) notify handler during driver removal. The issue occurred because the notify handler type was changed but the removal function was not updated accordingly, causing the handler to remain registered after the driver was removed. This could lead to a kernel crash if an ACPI notify event triggered after driver removal, and also cause subsequent driver probes to fail.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel ACPI button driver changed its notify handler type to ACPI_ALL_NOTIFY in commit a7e23ec17fee but failed to update the acpi_button_remove() function to remove the handler correctly. This resulted in the notify handler leaking past driver removal, which may cause kernel crashes if ACPI notify events occur after removal and prevent successful re-probing of the device with the same driver. The vulnerability was fixed by updating the acpi_remove_notify_handler() call in acpi_button_remove() to properly remove the handler.
Potential Impact
If exploited, this vulnerability can cause kernel crashes due to use-after-removal of the ACPI notify handler. It also disrupts normal device driver operation by causing subsequent driver probes to fail. There is no indication of remote exploitation or privilege escalation from the provided data.
Mitigation Recommendations
A fix has been implemented in the Linux kernel source code to update the acpi_button_remove() function to correctly remove the ACPI notify handler. Users should apply the official Linux kernel updates that include this fix. Patch status is not explicitly confirmed in the provided data; check the Linux kernel vendor advisory or source repository for the exact fixed versions and apply the update accordingly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-f2x8-xrw8-f2m5
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64013"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27aa2a4a8d598912d89f
Added to database: 07/19/2026, 19:38:18 UTC
Last enriched: 07/19/2026, 19:59:46 UTC
Last updated: 07/20/2026, 17:35:10 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.