CVE-2026-80916 kcov: fix data corruption and race conditions on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: kcov: fix data corruption and race conditions on PREEMPTRT syzbot is reporting KCOV state corruption on PREEMPTRT kernels, for the temporary storage used for saving/restoring remote KCOV state is currently allocated as the per-CP...

CVE-2026-80916: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: kcov: fix data corruption and race conditions on PREEMPTRT syzbot is reporting KCOV state corruption on PREEMPTRT kernels, for the temporary storage used for saving/restoring remote KCOV state is currently allocated as the per-CP...

CVE-2026-43060

The CVE-2026-43060 issue affects the Linux kernel netfilter component (nft_ct). When the nft_ct module is removed, packets enqueued in nfqueue may retain stale references to conntrack zone templates or timeout policies, risking instability or DoS. The root cause is references that can outlive the...

kernel: x86/mm: Randomize per-cpu entry area

A possible unauthorized memory access flaw was found in the Linux kernel cpuentryarea mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. This issue could allow a local user to gain access to some important data with expected locatio...

kernel: x86/mm: Randomize per-cpu entry area

A possible unauthorized memory access flaw was found in the Linux kernel cpuentryarea mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. This issue could allow a local user to gain access to some important data with expected locatio...

Kernel: x86/mm: a per-cpu entry area leak was identified through the init_cea_offsets function when prefetchnta and prefetcht2 instructions being used for the per-cpu entry area mapping to the user space

A possible unauthorized memory access flaw was found in the Linux kernel's cpuentryarea mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implement...

kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c

A flaw was found in the allocatetracebuffer in kernel/trace/trace.c in the debug subsystem, when failure to allocate a dynamic percpu area, a resource cleanup is called. The pointer buf-buffer still holds the address and is not set to NULL, which can cause a use-after-free problem, leading to a...