CVE-2026-43331

A flaw was found in the Linux kernel. When Kernel Coverage KCOV instrumentation is enabled, a local user performing a kexec operation can trigger an invalid state within the x86/kexec component. This invalid state, related to the GS base that KCOV relies on for per-CPU data, causes the kernel to...

CVE-2026-23025

In the Linux kernel, the following vulnerability has been resolved: mm/pagealloc: prevent pcp corruption with SMP=n The kernel test robot has reported: BUG: spinlock trylock failure on UP on CPU0, kcompactd0/28 lock: 0xffff888807e35ef0, .magic: dead4ead, .owner: kcompactd0/28, .ownercpu: 0 CPU: 0...

kernel: mm: vmalloc: check if a hash-index is in cpu_possible_mask

A vulnerability was found in the Linux kernel that involves improper handling of per-CPU data in systems where cpupossiblemask has gaps between CPUs. This can lead to an index which accesses non-existent or unset CPU areas and potentially causes kernel crashes...