Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved:power: supply: act8945a: Fix use-after-free in power_supply_changed()
Using the `devm_` variant for requesting IRQ _before_ the `devm_`
variant for allocating/registering the `power_supply` handle, means that
the `power_supply` handle will be deallocated/unregistered _before_ the
interrupt handler (since `devm_` naturally deallocates in reverse
allocation order). This means that during removal, there is a race
condition where an interrupt can fire just _after_ the `power_supply`
handle has been freed, *but* just _before_ the corresponding
unregistration of the IRQ handler has run.
This will lead to the IRQ handler calling `power_supply_changed()` with
a freed `power_supply` handle. Which usually crashes the system or
otherwise silently corrupts the memory...
Note that there is a similar situation which can also happen during
`probe()`; the possibility of an interrupt firing _before_ registering
the `power_supply` handle. This would then lead to the nasty situation
of using the `power_supply` handle *uninitialized* in
`power_supply_changed()`.
Fix this racy use-after-free by making sure the IRQ is requested _after_
the registration of the `power_supply` handle.
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 5 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
Note from the SUSE Security Team on the kernel-default package
SUSE will no longer fix all CVEs in the Linux Kernel anymore, but declare some bug classes as won't fix. Please refer to TID 21496 for more details. No SUSE Bugzilla entries cross referenced. No SUSE Security Announcements cross referenced.Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Availability Extension 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise High Availability Extension 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Live Patching 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Live Patching 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Micro 5.3 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.3 | kernel-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.3 | kernel-source | Already fixed |
| SUSE Linux Enterprise Micro 5.3 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | kernel-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Legacy 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Legacy 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Public Cloud 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Public Cloud 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP7 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Server 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 16.0 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 16.0 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 16.1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP applications 16.0 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP applications 16.0 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP applications 16.1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | kernel-default | Already fixed |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | kernel-source | Already fixed |
| SUSE Linux Micro 6.0 | kernel-default | Already fixed |
| SUSE Linux Micro 6.0 | kernel-source | Already fixed |
| SUSE Linux Micro 6.0 | kernel-source-rt | Already fixed |
| SUSE Linux Micro 6.1 | kernel-default | Already fixed |
| SUSE Linux Micro 6.1 | kernel-source | Already fixed |
| SUSE Linux Micro 6.1 | kernel-source-rt | Already fixed |
| SUSE Linux Micro 6.2 | kernel-default | Already fixed |
| SUSE Linux Micro 6.2 | kernel-source | Already fixed |
| SUSE Real Time Module 15 SP7 | kernel-source-rt | Already fixed |
| openSUSE Leap 16.0 | kernel-source | Already fixed |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Live Patching 12 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Live Patching 12 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Live Patching 15 SP4 | kernel-default | Already fixed |
| SUSE Linux Enterprise Live Patching 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Live Patching 15 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Live Patching 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP5-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP5-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP6-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP6-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source | Already fixed |
| SUSE Manager Proxy 4.3 | kernel-source | Already fixed |
| SUSE Manager Proxy LTS 4.3 | kernel-source | Already fixed |
| SUSE Manager Retail Branch Server 4.3 | kernel-source | Already fixed |
| SUSE Manager Retail Branch Server LTS 4.3 | kernel-source | Already fixed |
| SUSE Manager Server 4.3 | kernel-source | Already fixed |
| SUSE Manager Server LTS 4.3 | kernel-source | Already fixed |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | kernel-source | Already fixed |
| SUSE Enterprise Storage 6 | kernel-source | Already fixed |
| SUSE Enterprise Storage 7 | kernel-source | Already fixed |
| SUSE Enterprise Storage 7.1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 11 SP4 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP2 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP3 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Micro 5.0 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.1 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.2 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.2 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | kernel-source | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP2 | kernel-source | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP3 | kernel-source | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Server 11 SP4 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP1-BCL | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP2 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP2-BCL | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP3 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP3-BCL | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | Already fixed |
| SUSE Manager Proxy 4.0 | kernel-source | Already fixed |
| SUSE Manager Proxy 4.1 | kernel-source | Already fixed |
| SUSE Manager Proxy 4.2 | kernel-source | Already fixed |
| SUSE Manager Retail Branch Server 4.0 | kernel-source | Already fixed |
| SUSE Manager Retail Branch Server 4.1 | kernel-source | Already fixed |
| SUSE Manager Retail Branch Server 4.2 | kernel-source | Already fixed |
| SUSE Manager Server 4.0 | kernel-source | Already fixed |
| SUSE Manager Server 4.1 | kernel-source | Already fixed |
| SUSE Manager Server 4.2 | kernel-source | Already fixed |
| SUSE OpenStack Cloud 9 | kernel-source | Already fixed |
| SUSE OpenStack Cloud Crowbar 9 | kernel-source | Already fixed |
| SUSE Real Time Module 15 SP4 | kernel-source-rt | Already fixed |
| SUSE Real Time Module 15 SP5 | kernel-source-rt | Already fixed |
| openSUSE Leap 15.3 | kernel-source | Already fixed |
| openSUSE Leap 15.4 | kernel-source | Already fixed |
| openSUSE Leap 15.4 | kernel-source-rt | Already fixed |
| openSUSE Leap 15.5 | kernel-source | Already fixed |
| openSUSE Leap 15.5 | kernel-source-rt | Already fixed |
| openSUSE Leap 15.6 | kernel-source | Already fixed |
SUSE Timeline for this CVE
CVE page created: Wed May 27 16:13:58 2026CVE page last modified: Thu May 28 21:28:58 2026