PT-2026-52961 · Undefined · Undefined
Published
2026-06-26
·
Updated
2026-06-26
·
CVE-2026-53322
None
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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.
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Related Identifiers
Affected Products
Undefined