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SUSE: Kernel Important Security Update 2025:21056-1 CVE-2023-53538 DoS

suse
Calendar Grey November 27, 2025
Dist Suse Esm H88
SUSE Linux Micro kernel update fixes 191 issues ensuring system security and stability. Immediate patching recommended.
* bsc#1012628 * bsc#1214954 * bsc#1215143 * bsc#1215199 * bsc#1216396

Summary

## The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: * CVE-2025-38008: mm/page_alloc: fix race condition in unaccepted memory handling (bsc#1244939). * CVE-2025-38539: trace/fgraph: Fix the warning caused by missing unregister notifier (bsc#1248211). * CVE-2025-38552: mptcp: plug races between subflow fail and subflow creation (bsc#1248230). * CVE-2025-38653: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al (bsc#1248630). * CVE-2025-38699: scsi: bfa: Double-free fix (bsc#1249224). * CVE-2025-38700: scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated (bsc#1249182). * CVE-2025-38718: sctp: linearize cloned gso packets in sctp_rcv (bsc#1249161).

Topics%20covered

Topics Covered

security advisory SuSE DoS vulnerability important Linux kernel

References

* bsc#1012628

* bsc#1214954

* bsc#1215143

* bsc#1215199

* bsc#1216396

* bsc#1220419

* bsc#1236743

* bsc#1239206

* bsc#1244939

* bsc#1248211

* bsc#1248230

* bsc#1248517

* bsc#1248630

* bsc#1248754

* bsc#1248886

* bsc#1249161

* bsc#1249182

* bsc#1249224

* bsc#1249286

* bsc#1249302

* bsc#1249317

* bsc#1249319

* bsc#1249320

* bsc#1249512

* bsc#1249595

* bsc#1249608

* bsc#1250032

* bsc#1250119

* bsc#1250202

* bsc#1250205

* bsc#1250237

* bsc#1250274

* bsc#1250296

* bsc#1250379

* bsc#1250400

* bsc#1250455

* bsc#1250491

* bsc#1250519

* bsc#1250650

* bsc#1250702

* bsc#1250704

* bsc#1250721

* bsc#1250742

* bsc#1250946

* bsc#1251024

* bsc#1251027

* bsc#1251028

* bsc#1251031

* bsc#1251035

* bsc#1251038

* bsc#1251043

* bsc#1251045

* bsc#1251052

* bsc#1251053

* bsc#1251054

* bsc#1251056

* bsc#1251057

* bsc#1251059

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:21056-1
Release Date: 2025-11-13T15:32:12Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE DoS vulnerability important Linux kernel

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