Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved: audit: improve robustness of the audit queue handling If the audit daemon were ever to get stuck in a stopped state the kernel's kauditd_thread() could get blocked attempting to send audit records to the userspace audit daemon. With the kernel thread blocked it is possible that the audit queue could grow unbounded as certain audit record generating events must be exempt from the queue limits else the system enter a deadlock state. This patch resolves this problem by lowering the kernel thread's socket sending timeout from MAX_SCHEDULE_TIMEOUT to HZ/10 and tweaks the kauditd_send_queue() function to better manage the various audit queues when connection problems occur between the kernel and the audit daemon. With this patch, the backlog may temporarily grow beyond the defined limits when the audit daemon is stopped and the system is under heavy audit pressure, but kauditd_thread() will continue to make progress and drain the queues as it would for other connection problems. For example, with the audit daemon put into a stopped state and the system configured to audit every syscall it was still possible to shutdown the system without a kernel panic, deadlock, etc.; granted, the system was slow to shutdown but that is to be expected given the extreme pressure of recording every syscall. The timeout value of HZ/10 was chosen primarily through experimentation and this developer's "gut feeling". There is likely no one perfect value, but as this scenario is limited in scope (root privileges would be needed to send SIGSTOP to the audit daemon), it is likely not worth exposing this as a tunable at present. This can always be done at a later date if it proves necessary.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
SUSE | |
---|---|
Base Score | 4.7 |
Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Local |
Attack Complexity | High |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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-default | Affected |
SUSE Enterprise Storage 7.1 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP5 | kernel-default | Already fixed |
SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Already fixed |
SUSE Linux Enterprise Desktop 15 SP6 | kernel-default | Already fixed |
SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Already fixed |
SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-default | Already fixed |
SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source | Already fixed |
SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-default | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source-azure | 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 Micro 5.1 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.1 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.1 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 5.2 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.2 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.2 | kernel-source-rt | Affected |
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-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-rt | Already fixed |
SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Already fixed |
SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | Already fixed |
SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Already fixed |
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 Development Tools 15 SP5 | kernel-default | 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-default | Already fixed |
SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | Already fixed |
SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Module for Public Cloud 15 SP6 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Real Time 12 SP5 | kernel-source-rt | Already fixed |
SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Already fixed |
SUSE Linux Enterprise Real Time 15 SP6 | kernel-source-rt | Already fixed |
SUSE Linux Enterprise Server 12 SP5 | kernel-default | Already fixed |
SUSE Linux Enterprise Server 12 SP5 | kernel-source | Already fixed |
SUSE Linux Enterprise Server 12 SP5 | kernel-source-azure | Already fixed |
SUSE Linux Enterprise Server 15 SP5 | kernel-default | Already fixed |
SUSE Linux Enterprise Server 15 SP5 | kernel-source | Already fixed |
SUSE Linux Enterprise Server 15 SP5 | kernel-source-azure | 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 for SAP Applications 12 SP5 | kernel-default | Already fixed |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | Already fixed |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | 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 Linux Enterprise Server for SAP Applications 15 SP5 | 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 Manager Proxy 4.3 | kernel-default | Already fixed |
SUSE Manager Proxy 4.3 | kernel-source | Already fixed |
SUSE Manager Retail Branch Server 4.3 | kernel-default | Already fixed |
SUSE Manager Retail Branch Server 4.3 | kernel-source | Already fixed |
SUSE Manager Server 4.3 | kernel-default | Already fixed |
SUSE Manager Server 4.3 | kernel-source | Already fixed |
SUSE Real Time Module 15 SP5 | kernel-source-rt | Already fixed |
SUSE Real Time Module 15 SP6 | kernel-source-rt | Already fixed |
openSUSE Leap 15.5 | kernel-default | Already fixed |
openSUSE Leap 15.5 | kernel-source | Already fixed |
openSUSE Leap 15.5 | kernel-source-azure | Already fixed |
openSUSE Leap 15.5 | 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 Desktop 15 SP4 | kernel-source | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4 | kernel-source | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-default | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | 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 Module for Basesystem 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Already fixed |
SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP4 | 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 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-source | Affected |
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 for SAP Applications 15 SP2 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | Affected |
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 |
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 | Affected |
SUSE Enterprise Storage 6 | kernel-source | Affected |
SUSE Enterprise Storage 7 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 12 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.0 | kernel-default | Affected |
SUSE Linux Enterprise Module for Basesystem 15 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP3 | kernel-source-rt | Affected |
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 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 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 | Affected |
SUSE Linux Enterprise Server 12 SP4-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP1-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP2-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP3-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 15-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Affected |
SUSE Manager Proxy 4.0 | kernel-source | Affected |
SUSE Manager Proxy 4.1 | kernel-source | Affected |
SUSE Manager Proxy 4.2 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.0 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.1 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.2 | kernel-source | Affected |
SUSE Manager Server 4.0 | kernel-source | Affected |
SUSE Manager Server 4.1 | kernel-source | Affected |
SUSE Manager Server 4.2 | kernel-source | Affected |
SUSE OpenStack Cloud 8 | kernel-source | Not affected |
SUSE OpenStack Cloud 9 | kernel-source | Affected |
SUSE OpenStack Cloud Crowbar 8 | kernel-source | Not affected |
SUSE OpenStack Cloud Crowbar 9 | kernel-source | Affected |
SUSE Real Time Module 15 SP3 | kernel-source-rt | Affected |
SUSE Real Time Module 15 SP4 | kernel-source-rt | Already fixed |
SUSE Timeline for this CVE
CVE page created: Wed Jun 19 18:02:37 2024CVE page last modified: Thu Jun 20 13:35:03 2024