The vulnerability of the p2pmem_alloc_mmap() function in the drivers/pci/p2pdma.c module of the Linux operating system’s PCI device driver allows a hacker to cause a service failure.

The vulnerability of the p2pmemallocmmap function in the drivers/pci/p2pdma.c module of the Linux operating system’s PCI device driver is related to errors during the update of the reference counter. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-46268

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Fix p2pmemallocmmap warning condition Commit b7e282378773 has already changed the initial page refcount of p2pdma page from one to zero, however, in p2pmemallocmmap it uses "VMWARNONONCEPAGE!pagerefcountpage" to asser...

Linux Distros Unpatched Vulnerability : CVE-2026-46268

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PCI/P2PDMA: Fix p2pmemallocmmap warning condition Commit b7e282378773 has already changed the initial page refcount of p2pdma page from one to zero, however, in...

CVE-2026-46268: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Fix p2pmemallocmmap warning condition Commit b7e282378773 has already changed the initial page refcount of p2pdma page from one to zero, however, in p2pmemallocmmap it uses "VMWARNONONCEPAGE!pagerefcountpage" to asser...

CVE-2026-45880

A flaw was found in the Linux kernel's PCI/P2PDMA subsystem. When the vminsertpage function fails during memory allocation, the system does not properly release a per-CPU reference for the page map. This oversight can lead to a resource leak, causing the memunmappages function to hang indefinitel...

CVE-2026-45880: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Release per-CPU pgmap ref when vminsertpage fails When vminsertpage fails in p2pmemallocmmap, p2pmemallocmmap doesn't invoke percpurefput to free the per-CPU ref of pgmap acquired after genpoolallocowner, and...