Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved:mm/ptdump: take the memory hotplug lock inside ptdump_walk_pgd()
Memory hot remove unmaps and tears down various kernel page table regions
as required. The ptdump code can race with concurrent modifications of
the kernel page tables. When leaf entries are modified concurrently, the
dump code may log stale or inconsistent information for a VA range, but
this is otherwise not harmful.
But when intermediate levels of kernel page table are freed, the dump code
will continue to use memory that has been freed and potentially
reallocated for another purpose. In such cases, the ptdump code may
dereference bogus addresses, leading to a number of potential problems.
To avoid the above mentioned race condition, platforms such as arm64,
riscv and s390 take memory hotplug lock, while dumping kernel page table
via the sysfs interface /sys/kernel/debug/kernel_page_tables.
Similar race condition exists while checking for pages that might have
been marked W+X via /sys/kernel/debug/kernel_page_tables/check_wx_pages
which in turn calls ptdump_check_wx(). Instead of solving this race
condition again, let's just move the memory hotplug lock inside generic
ptdump_check_wx() which will benefit both the scenarios.
Drop get_online_mems() and put_online_mems() combination from all existing
platform ptdump code paths.
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
SUSE | |
---|---|
Base Score | 5.5 |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Local |
Attack Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Unchanged |
Confidentiality Impact | None |
Integrity Impact | None |
Availability Impact | High |
CVSSv3 Version | 3.1 |
SUSE | |
---|---|
Base Score | 6.8 |
Vector | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
Attack Vector | Local |
Attack Complexity | Low |
Attack Requirements | None |
Privileges Required | Low |
User Interaction | None |
Vulnerable System Confidentiality Impact | None |
Vulnerable System Integrity Impact | None |
Vulnerable System Availability Impact | High |
Subsequent System Confidentiality Impact | None |
Subsequent System Integrity Impact | None |
Subsequent System Availability Impact | None |
CVSSv4 Version | 4.0 |
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. SUSE Bugzilla entry: 1249204 [NEW] 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 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Already fixed |
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 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source-azure | 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 High Performance Computing 15 SP7 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Live Patching 15 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise Live Patching 15 SP6 | 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 5.1 | kernel-default | Not affected |
SUSE Linux Enterprise Micro 5.1 | kernel-rt | Not affected |
SUSE Linux Enterprise Micro 5.1 | kernel-source | Not affected |
SUSE Linux Enterprise Micro 5.1 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Micro 5.2 | kernel-default | Not affected |
SUSE Linux Enterprise Micro 5.2 | kernel-rt | Not affected |
SUSE Linux Enterprise Micro 5.2 | kernel-source | Not affected |
SUSE Linux Enterprise Micro 5.2 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Micro 5.3 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.3 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.3 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.3 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 5.5 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.5 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | 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 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise Module for Development Tools 15 SP6 | 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 SP6 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Module for Public Cloud 15 SP7 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Real Time 15 SP6 | kernel-source-rt | Already fixed |
SUSE Linux Enterprise Real Time 15 SP7 | kernel-source-rt | Already fixed |
SUSE Linux Enterprise Server 15 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise Server 15 SP6 | kernel-source | Already fixed |
SUSE Linux Enterprise Server 15 SP6 | kernel-source-azure | 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 15 SP7 | kernel-source-azure | 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 16.0 | kernel-source-azure | 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 Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source-azure | 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 15 SP7 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Server for SAP Applications 16.0 | kernel-source | Already fixed |
SUSE Linux Enterprise Server for SAP Applications 16.0 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Workstation Extension 15 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise Workstation Extension 15 SP6 | 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-source | Already fixed |
SUSE Real Time Module 15 SP6 | kernel-source-rt | Already fixed |
SUSE Real Time Module 15 SP7 | kernel-source-rt | Already fixed |
openSUSE Leap 15.6 | kernel-default | Already fixed |
openSUSE Leap 15.6 | kernel-source | Already fixed |
openSUSE Leap 15.6 | kernel-source-azure | Already fixed |
openSUSE Leap 15.6 | kernel-source-rt | Already fixed |
Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
SUSE Linux Enterprise High Performance Computing 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Live Patching 12 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise Live Patching 12 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Live Patching 15 SP3 | kernel-default | Not affected |
SUSE Linux Enterprise Live Patching 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Live Patching 15 SP4 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Live Patching 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | Affected |
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 | Not affected |
SUSE Linux Enterprise Server 12 SP5 | kernel-source-azure | Not affected |
SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source-azure | Not affected |
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise Server 15 SP5-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP5-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source-azure | Not affected |
SUSE Manager Proxy 4.3 | kernel-source | Affected |
SUSE Manager Proxy LTS 4.3 | kernel-default | Affected |
SUSE Manager Proxy LTS 4.3 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.3 | kernel-source | Affected |
SUSE Manager Retail Branch Server LTS 4.3 | kernel-default | Affected |
SUSE Manager Retail Branch Server LTS 4.3 | kernel-source | Affected |
SUSE Manager Server 4.3 | kernel-source | Affected |
SUSE Manager Server LTS 4.3 | kernel-default | Affected |
SUSE Manager Server LTS 4.3 | kernel-source | Affected |
Products past their end of life and not receiving proactive updates anymore. | ||
SUSE CaaS Platform 4.0 | kernel-source | Not affected |
SUSE Enterprise Storage 6 | kernel-source | Not affected |
SUSE Enterprise Storage 7 | kernel-source | Not affected |
SUSE Enterprise Storage 7.1 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 11 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 12 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 SP1 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP1 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Micro 5.0 | kernel-default | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | kernel-source | Not affected |
SUSE Linux Enterprise Real Time 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Real Time 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Real Time 15 SP3 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Real Time 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP4 | kernel-source-rt | Affected |
SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Affected |
SUSE Linux Enterprise Server 11 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP2-BCL | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP2-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP2-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 SP2-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP4-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP1 | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP1-BCL | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP2-BCL | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP3-BCL | kernel-source | Not affected |
SUSE Linux Enterprise Server 15-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 15-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source-azure | Affected |
SUSE Manager Proxy 4.0 | kernel-source | Not affected |
SUSE Manager Proxy 4.1 | kernel-source | Not affected |
SUSE Manager Proxy 4.2 | kernel-source | Not affected |
SUSE Manager Retail Branch Server 4.0 | kernel-source | Not affected |
SUSE Manager Retail Branch Server 4.1 | kernel-source | Not affected |
SUSE Manager Retail Branch Server 4.2 | kernel-source | Not affected |
SUSE Manager Server 4.0 | kernel-source | Not affected |
SUSE Manager Server 4.1 | kernel-source | Not affected |
SUSE Manager Server 4.2 | kernel-source | Not affected |
SUSE OpenStack Cloud 7 | kernel-source | Not affected |
SUSE OpenStack Cloud 9 | kernel-source | Not affected |
SUSE OpenStack Cloud Crowbar 9 | kernel-source | Not affected |
SUSE Real Time Module 15 SP3 | kernel-source-rt | Not affected |
SUSE Real Time Module 15 SP4 | kernel-source-rt | Affected |
SUSE Real Time Module 15 SP5 | kernel-source-rt | Affected |
openSUSE Leap 15.3 | kernel-source | Not affected |
openSUSE Leap 15.3 | kernel-source-rt | Not affected |
openSUSE Leap 15.4 | kernel-source | Affected |
openSUSE Leap 15.4 | kernel-source-azure | Affected |
openSUSE Leap 15.4 | kernel-source-rt | Affected |
openSUSE Leap 15.5 | kernel-source | Affected |
openSUSE Leap 15.5 | kernel-source-azure | Affected |
openSUSE Leap 15.5 | kernel-source-rt | Affected |
SUSE Timeline for this CVE
CVE page created: Thu Sep 4 20:02:25 2025CVE page last modified: Fri Sep 5 18:28:28 2025