Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: s390/vmem: Split pages when debug pagealloc is enabled. Since commit bb1520d581a3 “s390/mm: Start kernel with DAT enabled”, the kernel crashes early during boot when debug pagealloc is enabled. Symptoms: - Memory initialization:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fixed an issue where the HCAPORTS component was unregistered twice. Cleared hcadevcomcomp in the device’s private data after unregistering it during LAG teardown. Otherwise, a slightly delayed second pass through...

CVE-2026-31568

A flaw was found in the Linux kernel. This vulnerability, located in the s390/mm component, is due to missing secure storage access fixups for memory donated to the Ultravisor. When secure storage access exceptions occur for such memory, the kernel can enter an unresolvable loop. This can lead to...

CVE-2026-31568

Summary: CVE-2026-31568 affects the Linux kernel s390/mm, where donated memory to the Ultravisor lacked PG_arch_1-safe export handling. The root cause is that secure storage access exceptions can occur for such pages, previously mid-flight exporting the page via arch_make_folio_accessible() would...

CVE-2026-31568

In the Linux kernel, the following vulnerability has been resolved: s390/mm: Add missing secure storage access fixups for donated memory There are special cases where secure storage access exceptions happen in a kernel context for pages that don't have the PGarch1 bit set. That bit is set for...

s390/syscalls: Add spectre boundary for syscall dispatch table

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EUVD-2026-24844

In the Linux kernel, the following vulnerability has been resolved: s390/entry: Scrub r12 register on kernel entry Before commit f33f2d4c7c80 "s390/bp: remove TIFISOLATEBP", all entry handlers loaded r12 with the current task pointer lg %r12,LCCURRENT for use by the BPENTER/BPEXIT macros. That...

S390 Linux Stacktrace Heap Buffer Overflow DoS

The vulnerability of the archstackwalkusercommon function in the arch/s390/kernel/stacktrace.c module of the S390 platform support for the Linux operating system is related to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker...

Security Bulletin: Communications Server (CS) for Data Center Deployment, CS for Linux, and CS for Linux on System z are affected by: IBM Java: Buffer overflow vulnerability in OMR allows denial-of-service

Summary Communications Server CS for Data Center Deployment, CS for Linux, and CS for Linux on System z install a local Java JRE in its product directories. This JRE is used solely for the IBM Key Manager ikeyman tool which is called by the snakeyman script used for managing the SSL key database...

Security Bulletin: Communications Server (CS) for Data Center Deployment, CS for Linux, and CS for Linux on System z are affected by: IBM SDK, Java Technology Edition Quarterly CPU - Oct 2025 - Includes Oracle October 2025 CPU

Summary Communications Server CS for Data Center Deployment, CS for Linux, and CS for Linux on System z install a local Java JRE in its product directories. This JRE is used solely for the IBM Key Manager ikeyman tool which is called by the snakeyman script used for managing the SSL key database...

Security Bulletin: Communications Server (CS) for Data Center Deployment, CS for Linux, and CS for Linux on System z are affected by: IBM SDK, Java Technology Edition Quarterly CPU - Jul 2025 - Includes Oracle July 2025 CPU

Summary Communications Server CS for Data Center Deployment, CS for Linux, and CS for Linux on System z install a local Java JRE in its product directories. This JRE is used solely for the IBM Key Manager ikeyman tool which is called by the snakeyman script used for managing the SSL key database...

Security Bulletin: Communications Server (CS) for Data Center Deployment, CS for Linux, and CS for Linux on System z are affected by: IBM SDK, Java Technology Edition Quarterly CPU - Apr 2025 - Includes Oracle April 2024 CPU plus CVE-2025-4447

Summary Communications Server CS for Data Center Deployment, CS for Linux, and CS for Linux on System z install a local Java JRE in its product directories. This JRE is used solely for the IBM Key Manager ikeyman tool which is called by the snakeyman script used for managing the SSL key database...

SUSE-SU-2026:0832-1 Security update for qemu

This update for qemu fixes the following issues: Security issue: - CVE-2025-14876: qemu-kvm: Unbounded allocation in virtio-crypto bsc1255400. Non security issues: - hw/virtio: Also include md stubs in case CONFIGVIRTIOPCI is not set jscPED-14271. - s390x/pv: prepare for memory devices...

S390 vmem_map_init Buffer Overflow DoS

The vulnerability of the vmemmapinit function in the arch/s390/mm/vmem.c module of the S390 platform support for the Linux operating system is related to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...

kernel security update

6.12.0-124.31.1 - Add new Oracle Linux Driver Signing key 1 certificate Orabug: 37985782 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005011)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005011 advisory. In the Linux kernel, the following vulnerability has been resolved: crypto: s390/aes - Fix buffer overread in CTR mode When processing the last block, the s390 ctr...

CVE-2025-71155

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix gmaphelperzaponepage again A few checks were missing in gmaphelperzaponepage, which can lead to memory corruption in the guest under specific circumstances. Add the missing checks...

CVE-2025-71155

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix gmaphelperzaponepage again A few checks were missing in gmaphelperzaponepage, which can lead to memory corruption in the guest under specific circumstances. Add the missing checks...

Security update for the Linux Kernel (Live Patch 63 for SUSE Linux Enterprise 12 SP5)

This update for the SUSE Linux Enterprise kernel 4.12.14-122.237 fixes various security issues The following security issues were fixed: CVE-2022-50233: bluetooth: device name can cause reading kernel memory by not supplying terminal \0 bsc1249242. CVE-2022-50327: ACPI: processor: idle: Check...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000885)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000885 advisory. arch/s390/kernel/head64.S in the Linux kernel before 3.13.5 on the s390 platform does not properly handle attempted use of the linkage stack, which allows local user...