SUSE-SU-2025:03384-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2022-49492: nvme-pci: fix a NULL pointer dereference in nvmeallocadmintags bsc1238954. - CVE-2022-50116: kernel: tty: ngsm: fix deadlock and link starvation i...

CVE-2025-37964 x86/mm: Eliminate window where TLB flushes may be inadvertently skipped

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Eliminate window where TLB flushes may be inadvertently skipped tl;dr: There is a window in the mm switching code where the new CR3 is set and the CPU should be getting TLB flushes for the new mm. But shouldflushtlb has a...

CVE-2025-37964

CVE-2025-37964 relates to the Linux kernel x86/mm TLB handling. The issue is a bug in should_flush_tlb() that can suppress TLB flushes in a narrow window between load_new_mm_cr3() and writing the new mm state into loaded_mm, risking missed TLB flushes during address space switch. The fix widens t...

CVE-2025-37964 x86/mm: Eliminate window where TLB flushes may be inadvertently skipped

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Eliminate window where TLB flushes may be inadvertently skipped tl;dr: There is a window in the mm switching code where the new CR3 is set and the CPU should be getting TLB flushes for the new mm. But shouldflushtlb has a...

PT-2025-16685

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, related to the function flush tlb range when used for zapping normal PMD entries. The issue is associated with the collapse pte...

CVE-2021-26340

A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer TLB resulting in unexpected behavior inside the virtual machine VM...

kernel security and bug fix update

2.6.9-89.33.1.0.1.EL - XEN fix cpu hotplug crash Joe Jin orabug 7521308 - XEN Bring up vcpus before khelper init Joe Jin orabug 7521308 - XEN flush the tlb cache immediately Dave McCracken, Scott Shi orabug 9138767 - fix skb alignment that was causing sendto to fail with EFAULT Olaf Kirch orabug...