CVE-2025-21802 Affecting kernel-livepatch-6_4_0-150600_23_42-default package, versions <1-150600.13.3.4


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-SLES156-KERNELLIVEPATCH6401506002342DEFAULT-9406446
  • published14 Mar 2025
  • disclosed13 Mar 2025

Introduced: 13 Mar 2025

NewCVE-2025-21802  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-livepatch-6_4_0-150600_23_42-default to version 1-150600.13.3.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150600_23_42-default package and not the kernel-livepatch-6_4_0-150600_23_42-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:

net: hns3: fix oops when unload drivers paralleling

When unload hclge driver, it tries to disable sriov first for each ae_dev node from hnae3_ae_dev_list. If user unloads hns3 driver at the time, because it removes all the ae_dev nodes, and it may cause oops.

But we can't simply use hnae3_common_lock for this. Because in the process flow of pci_disable_sriov(), it will trigger the remove flow of VF, which will also take hnae3_common_lock.

To fixes it, introduce a new mutex to protect the unload process.

CVSS Base Scores

version 3.1