<p>Upgrade <code>SLES:15.6</code> <code>cluster-md-kmp-default</code> to version 6.4.0-150600.23.7.3 or higher.</p>

CVE-2024-35989 Affecting cluster-md-kmp-default package, versions <6.4.0-150600.23.7.3

Threat Intelligence

0.05% (17^th percentile)

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Snyk ID SNYK-SLES156-CLUSTERMDKMPDEFAULT-7717851
published 20 Aug 2024
disclosed 25 Jun 2024

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Introduced: 25 Jun 2024

CVE-2024-35989 Open this link in a new tab

How to fix?

Upgrade SLES:15.6 cluster-md-kmp-default to version 6.4.0-150600.23.7.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cluster-md-kmp-default package and not the cluster-md-kmp-default package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: idxd: Fix oops during rmmod on single-CPU platforms

During the removal of the idxd driver, registered offline callback is invoked as part of the clean up process. However, on systems with only one CPU online, no valid target is available to migrate the perf context, resulting in a kernel oops:

BUG: unable to handle page fault for address: 000000000002a2b8
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 1470e1067 P4D 0
Oops: 0002 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 20 Comm: cpuhp/0 Not tainted 6.8.0-rc6-dsa+ #57
Hardware name: Intel Corporation AvenueCity/AvenueCity, BIOS BHSDCRB1.86B.2492.D03.2307181620 07/18/2023
RIP: 0010:mutex_lock+0x2e/0x50
...
Call Trace:
&lt;TASK&gt;
__die+0x24/0x70
page_fault_oops+0x82/0x160
do_user_addr_fault+0x65/0x6b0
__pfx___rdmsr_safe_on_cpu+0x10/0x10
exc_page_fault+0x7d/0x170
asm_exc_page_fault+0x26/0x30
mutex_lock+0x2e/0x50
mutex_lock+0x1e/0x50
perf_pmu_migrate_context+0x87/0x1f0
perf_event_cpu_offline+0x76/0x90 [idxd]
cpuhp_invoke_callback+0xa2/0x4f0
__pfx_perf_event_cpu_offline+0x10/0x10 [idxd]
cpuhp_thread_fun+0x98/0x150
smpboot_thread_fn+0x27/0x260
smpboot_thread_fn+0x1af/0x260
__pfx_smpboot_thread_fn+0x10/0x10
kthread+0x103/0x140
__pfx_kthread+0x10/0x10
ret_from_fork+0x31/0x50
__pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1b/0x30
&lt;TASK&gt;

Fix the issue by preventing the migration of the perf context to an invalid target.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High

CVE-2024-35989 Affecting cluster-md-kmp-default package, versions <6.4.0-150600.23.7.3

Severity

Based on SUSE Linux Enterprise Server security rating