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...

CVE-2026-46268 PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition

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-2026-46268

CVE-2026-46268 details a Linux kernel issue in PCI/P2PDMA: p2pmem_alloc_mmap() used VM_WARN_ON_ONCE_PAGE(!page_ref_count(page)) after p2pdma page refcount was changed from 1 to 0. The fix changes the assertion to use page_ref_count(page) instead of !page_ref_count(page). The warning is surfaced w...