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SUSE: Kernel Important Security Update SUSE-SU-2025:03207-1 CVE-2025-21701

suse
Calendar Grey September 15, 2025
Dist Suse Esm H88
Explore crucial enhancements in the Linux Kernel tackling major vulnerabilities and implementing fixes for SUSE environments.
* bsc#1242579 * bsc#1244235 * bsc#1245775 * bsc#1245791 * bsc#1245805

Summary

## This update for the Linux Kernel 5.14.21-150500_55_103 fixes several issues. The following security issues were fixed: * CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1242579). * CVE-2025-38001: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice (bsc#1244235). * CVE-2025-38000: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (bsc#1245775). * CVE-2025-37890: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (bsc#1245791). * CVE-2025-21701: net: avoid race between device unregistration and ethnl ops (bsc#1245805). * CVE-2025-38212: ipc: fix to protect IPCS lookups using RCU (bsc#1246030). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like

Topics%20covered

Topics Covered

security advisory SuSE threat patch important kernel

References

* bsc#1242579

* bsc#1244235

* bsc#1245775

* bsc#1245791

* bsc#1245805

* bsc#1246030

Cross-

* CVE-2025-21701

* CVE-2025-21999

* CVE-2025-37890

* CVE-2025-38000

* CVE-2025-38001

* CVE-2025-38212

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-2025-21999 ( SUSE ): 6.8

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

* CVE-2025-21999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-21999 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-37890 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38000 ( SUSE ): 7.3

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

* CVE-2025-38000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:03207-1
Release Date: 2025-09-12T22:33:40Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE threat patch important kernel

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