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SUSE: Kernel Important Security Update CVE-2025-21999, Denial of Service

suse
Calendar Grey September 11, 2025
Dist Suse Esm H88
This revision tackles several significant concerns within the Windows Operating System for Ubuntu, incorporating critical security flaws and enhancements.
* bsc#1237930 * bsc#1242579 * bsc#1244235 * bsc#1245775 * bsc#1245791

Summary

## This update for the Linux Kernel 5.14.21-150400_24_141 fixes several issues. The following security issues were fixed: * CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1242579). * CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237930). * 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-2025-38212: ipc: fix to protect IPCS lookups using RCU (bsc#1246030). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory denial of service security issue SuSE important kernel

References

* bsc#1237930

* bsc#1242579

* bsc#1244235

* bsc#1245775

* bsc#1245791

* bsc#1246030

Cross-

* CVE-2022-49053

* CVE-2025-21999

* CVE-2025-37890

* CVE-2025-38000

* CVE-2025-38001

* CVE-2025-38212

CVSS scores:

* CVE-2022-49053 ( SUSE ): 7.3

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

* CVE-2022-49053 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2022-49053 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:03180-1
Release Date: 2025-09-11T18:33:47Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service security issue SuSE important kernel

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