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...

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...