Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved:cxl/pci: Skip to handle RAS errors if CXL.mem device is detached
The PCI AER model is an awkward fit for CXL error handling. While the
expectation is that a PCI device can escalate to link reset to recover
from an AER event, the same reset on CXL amounts to a surprise memory
hotplug of massive amounts of memory.
At present, the CXL error handler attempts some optimistic error
handling to unbind the device from the cxl_mem driver after reaping some
RAS register values. This results in a "hopeful" attempt to unplug the
memory, but there is no guarantee that will succeed.
A subsequent AER notification after the memdev unbind event can no
longer assume the registers are mapped. Check for memdev bind before
reaping status register values to avoid crashes of the form:
BUG: unable to handle page fault for address: ffa00000195e9100
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
[...]
RIP: 0010:__cxl_handle_ras+0x30/0x110 [cxl_core]
[...]
Call Trace:
<TASK>
? __die+0x24/0x70
? page_fault_oops+0x82/0x160
? kernelmode_fixup_or_oops+0x84/0x110
? exc_page_fault+0x113/0x170
? asm_exc_page_fault+0x26/0x30
? __pfx_dpc_reset_link+0x10/0x10
? __cxl_handle_ras+0x30/0x110 [cxl_core]
? find_cxl_port+0x59/0x80 [cxl_core]
cxl_handle_rp_ras+0xbc/0xd0 [cxl_core]
cxl_error_detected+0x6c/0xf0 [cxl_core]
report_error_detected+0xc7/0x1c0
pci_walk_bus+0x73/0x90
pcie_do_recovery+0x23f/0x330
Longer term, the unbind and PCI_ERS_RESULT_DISCONNECT behavior might
need to be replaced with a new PCI_ERS_RESULT_PANIC.
SUSE information
Overall state of this security issue: Resolved
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 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Enterprise Storage 7.1 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 SP6 | kernel-default | Not affected |
SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source-azure | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source-azure | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source-azure | Not affected |
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-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-rt | Not affected |
SUSE Linux Enterprise Micro 5.3 | kernel-default | Not affected |
SUSE Linux Enterprise Micro 5.3 | kernel-rt | Not affected |
SUSE Linux Enterprise Micro 5.3 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Micro 5.4 | kernel-default | Not affected |
SUSE Linux Enterprise Micro 5.4 | kernel-rt | Not affected |
SUSE Linux Enterprise Micro 5.4 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Micro 6.0 | kernel-default | Already fixed |
SUSE Linux Enterprise Micro 6.0 | kernel-source | Already fixed |
SUSE Linux Enterprise Micro 6.0 | kernel-source-rt | Already fixed |
SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-default | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | Not affected |
SUSE Linux Enterprise Module for Public Cloud 15 SP6 | kernel-source-azure | Not affected |
SUSE Linux Enterprise Real Time 12 SP5 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Real Time 15 SP6 | kernel-source-rt | Not affected |
SUSE Linux Enterprise Server 12 SP5 | kernel-default | 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 15 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise Server 15 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP5 | kernel-source-azure | Not affected |
SUSE Linux Enterprise Server 15 SP6 | kernel-default | Not affected |
SUSE Linux Enterprise Server 15 SP6 | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 SP6 | kernel-source-azure | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source-azure | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source-azure | Not affected |
SUSE Manager Proxy 4.3 | kernel-default | Not affected |
SUSE Manager Proxy 4.3 | kernel-source | Not affected |
SUSE Manager Retail Branch Server 4.3 | kernel-default | Not affected |
SUSE Manager Retail Branch Server 4.3 | kernel-source | Not affected |
SUSE Manager Server 4.3 | kernel-default | Not affected |
SUSE Manager Server 4.3 | kernel-source | Not affected |
SUSE Real Time Module 15 SP5 | kernel-source-rt | Not affected |
SUSE Real Time Module 15 SP6 | kernel-source-rt | Not affected |
openSUSE Leap 15.5 | kernel-default | Not affected |
openSUSE Leap 15.5 | kernel-source | Not affected |
openSUSE Leap 15.5 | kernel-source-azure | Not affected |
openSUSE Leap 15.5 | kernel-source-rt | Not affected |
openSUSE Leap 15.6 | kernel-default | Not affected |
openSUSE Leap 15.6 | kernel-source | Not affected |
openSUSE Leap 15.6 | kernel-source-azure | Not affected |
openSUSE Leap 15.6 | kernel-source-rt | Not affected |
Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
SUSE Linux Enterprise Desktop 15 SP4 | 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-default | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Not affected |
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 | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Not 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 | Not 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 15 SP2 | 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 | 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 | Not affected |
SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default | 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 | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | Not affected |
Products past their end of life and not receiving proactive updates anymore. | ||
HPE Helion OpenStack 8 | kernel-source | Not affected |
SUSE CaaS Platform 4.0 | kernel-source | Not affected |
SUSE CaaS Platform Toolchain 3 | kernel-source | Not affected |
SUSE Enterprise Storage 6 | kernel-source | Not affected |
SUSE Enterprise Storage 7 | 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 SP3 | 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 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-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 Development Tools 15 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 SP1 | 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 | Not affected |
SUSE Linux Enterprise Real Time 15 SP4 | kernel-source-rt | Not 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 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP3-BCL | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP3-ESPOS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP3-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-BCL | 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 SP3 | 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 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 8 | kernel-source | Not affected |
SUSE OpenStack Cloud 9 | kernel-source | Not affected |
SUSE OpenStack Cloud Crowbar 8 | 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 | Not affected |
openSUSE Leap 15.3 | kernel-source | Not affected |
openSUSE Leap 15.3 | kernel-source-rt | Not affected |
openSUSE Leap 15.4 | kernel-source | Not affected |
openSUSE Leap 15.4 | kernel-source-azure | Not affected |
openSUSE Leap 15.4 | kernel-source-rt | Not affected |
SUSE Timeline for this CVE
CVE page created: Wed Apr 3 20:01:08 2024CVE page last modified: Wed Sep 11 00:49:11 2024