RHSA-2025:7956: Moderate: kernel security update

Published May 19, 2025
·
Updated

Moderate: kernel security update

Other sources

The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: dm-flakey: Fix memory corruption in optional corruptbiobyte feature (CVE-2025-21966) kernel: iscsiibft: Fix UBSAN shift-out-of-bounds warning in ibftattrshownic() (CVE-2025-21993) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat

Affected Software

216 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
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6.12.0-55.12.1.el10_0

Remediation

Event History

May 19, 2025
Advisory Published
via Red Hat·09:12 AM

Frequently Asked Questions

1

What is the severity of RHSA-2025:7956?

The severity of RHSA-2025:7956 is classified as moderate.

2

How do I fix RHSA-2025:7956?

To fix RHSA-2025:7956, upgrade to the kernel version 6.12.0-55.12.1.el10_0 or later.

3

Which Linux distributions are affected by RHSA-2025:7956?

RHSA-2025:7956 affects various versions of Red Hat Enterprise Linux, including those for IBM z Systems, x86_64, Power, little endian, and ARM.

4

What vulnerabilities are addressed in RHSA-2025:7956?

RHSA-2025:7956 addresses vulnerabilities including memory corruption in the dm-flakey feature and issues with the iscsi_ibft.

5

What packages are updated in relation to RHSA-2025:7956?

The packages updated in RHSA-2025:7956 include kernel, kernel-core, kernel-debug, and various related modules.

Contact

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