PT-2026-52961 · Undefined · Undefined

Publicado 2026-06-26 · Atualizado 2026-06-26 · CVE-2026-53322

NVD

In the Linux kernel, the following vulnerability has been resolved:

vfio/pci: Clean up DMABUFs before disabling function

On device shutdown, make vfio pci core close device() call vfio pci dma buf cleanup() before the function is disabled via vfio pci core disable(). This ensures that all access via DMABUFs is revoked before the function's BARs become inaccessible.

This fixes an issue where, if the function is disabled first, a tiny window exists in which the function's MSE is cleared and yet BARs could still be accessed via the DMABUF. The resources would also be freed and up for grabs by a different driver.

Identificadores relacionados

CVE-2026-53322

Produtos afetados

Undefined

Referências · 3

• https://git.kernel.org/stable/c/d97708701434ce72968e771976aaf9d3438fcafd · Nota
• https://git.kernel.org/stable/c/4f1000a30f67cf7d328059242776a858611d5ef9 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-53322 · Nota de Segurança