Threats Tagged 'cve-2026-45880'
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Threats Tagged 'cve-2026-45880'
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A vulnerability in the Linux kernel's PCI/P2PDMA subsystem causes a resource release failure when vm_insert_page() fails during p2pmem_alloc_mmap(). This leads to a hang in memunmap_pages() when attempting to remove the PCI device. The issue is fixed by adding a missing percpu_ref_put() call to properly release the per-CPU reference of pgmap. Join the discussion | GCVE Database | 05/27/2026, 15:33:14 UTC Added: 06/26/2026, 22:06:39 UTC |
In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails When vm_insert_page() fails in p2pmem_alloc_mmap(), p2pmem_alloc_mmap() doesn't invoke percpu_ref_put() to free the per-CPU ref of pgmap acquired after gen_pool_alloc_owner(), and memunmap_pages() will hang forever when trying to remove the PCI device. Fix it by adding the missed percpu_ref_put(). Join the discussion | GCVE Database | 05/27/2026, 14:17:00 UTC Added: 07/18/2026, 11:19:17 UTC |
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