UBUNTU-CVE-2026-45837

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix use-after-free in arenavmclose on fork arenavmopen only bumps vml-mmapcount but never registers the child VMA in arena-vmalist. The vml-vma always points at the parent VMA, so after parent munmap the pointer dangles. If...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed the WARNON message in tracingbuffersmmapclose for split VMA instances. When a VMA is split e.g., through partial munmap or MAPFIXED, the kernel calls vmops-close on each portion of the VMA. For trace buffer mapping...

ALPINE-CVE-2026-31787

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: fix double free via VMA splitting privcmdvmops defines .close privcmdclose, but neither .maysplit nor .open. When userspace does a partial munmap on a privcmd mapping, the kernel splits the VMA via splitvma. Since...

CVE-2026-31787

CVE-2026-31787 affects the Linux kernel, specifically the xen/privcmd mapping flow. The root cause is a double-free in the VMA splitting path when userspace performs partial munmap() on a privcmd mapping. Because privcmd_vm_ops defines .close but not .may_split or .open, the kernel may_split() pe...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-004949)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004949 advisory. In the Linux kernel, the following vulnerability has been resolved: perf/core: Prevent VMA split of buffer mappings The perf mmap code is careful about mmap'ing the...

CVE-2025-68329

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix WARNON in tracingbuffersmmapclose for split VMAs When a VMA is split e.g., by partial munmap or MAPFIXED, the kernel calls vmops-close on each portion. For trace buffer mappings, this results in ringbufferunmap being...

CVE-2025-68329

The CVE-2025-68329 entry documents a Linux kernel issue in tracing: when a VMA is split, the kernel could invoke ring_buffer_unmap multiple times (due to multiple vm_ops->close calls) while ring_buffer_map was called once, causing ring_buffer_unmap to return -ENODEV and triggering a WARN_ON. T...

CVE-2025-68329

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix WARNON in tracingbuffersmmapclose for split VMAs When a VMA is split e.g., by partial munmap or MAPFIXED, the kernel calls vmops-close on each portion. For trace buffer mappings, this results in ringbufferunmap being...

CVE-2025-38563 perf/core: Prevent VMA split of buffer mappings

In the Linux kernel, the following vulnerability has been resolved: perf/core: Prevent VMA split of buffer mappings The perf mmap code is careful about mmap'ing the user page with the ringbuffer and additionally the auxiliary buffer, when the event supports it. Once the first mapping is...

CVE-2025-38563 perf/core: Prevent VMA split of buffer mappings

In the Linux kernel, the following vulnerability has been resolved: perf/core: Prevent VMA split of buffer mappings The perf mmap code is careful about mmap'ing the user page with the ringbuffer and additionally the auxiliary buffer, when the event supports it. Once the first mapping is...

PT-2025-52657

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue within the tracing subsystem related to Virtual Memory Area VMA handling. Specifically, when a VMA is split, the ring buffer unmap function can be call...