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SUSE: Important Linux Kernel Update for Critical Issues 2025:03403-1

suse
Calendar Grey September 29, 2025
Dist Suse Esm H88
Kernel security update from SUSE fixes three issues with important severity to enhance system protection and stability.
* bsc#1245805 * bsc#1247499 * bsc#1248298 Cross-References:

Summary

## This update for the Linux Kernel 5.14.21-150500_55_116 fixes several issues. The following security issues were fixed: * CVE-2025-38498: do_change_type(): refuse to operate on unmounted/not ours mounts (bsc#1247499). * CVE-2025-38555: usb: gadget : fix use-after-free in composite_dev_cleanup() (bsc#1248298). * CVE-2025-21701: net: avoid race between device unregistration and ethnl ops (bsc#1245805). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.5 zypper in -t patch SUSE-2025-3403=1 * SUSE Linux Enterprise Live Patching 15-SP5 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2025-3403=1 ## Package List:

Topics%20covered

Topics Covered

security advisory SuSE remote access important Linux kernel use-after-free

References

* bsc#1245805

* bsc#1247499

* bsc#1248298

Cross-

* CVE-2025-21701

* CVE-2025-38498

* CVE-2025-38555

CVSS scores:

* CVE-2025-21701 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38498 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2025-38498 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38555 ( SUSE ): 8.5

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2025-38555 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

* openSUSE Leap 15.5

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise Live Patching 15-SP5

* SUSE Linux Enterprise Micro 5.5

* SUSE Linux Enterprise Real Time 15 SP5

* SUSE Linux Enterprise Server 15 SP5

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:03403-1
Release Date: 2025-09-27T22:04:03Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE remote access important Linux kernel use-after-free

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