On Mon, 12 May 2025 17:46:53 -0500, Gaurav Batra wrote:

When a device is opened by a userspace driver, via VFIO interface, DMA
window is created. This DMA window has TCE Table and a corresponding
data for userview of TCE table.

When the userspace driver closes the device, all the above infrastructure
is free'ed and the device control given back to kernel. Both DMA window
and TCE table is getting free'ed. But due to a code bug, userview of the
TCE table is not getting free'ed. This is resulting in a memory leak.

[...]

Applied to powerpc/next.

[1/1] powerpc/pseries/iommu: Fix kmemleak in TCE table userspace view
      https://git.kernel.org/powerpc/c/d36e3f11fe8b55b801bdbe84ad51f612b1bd84da

Thanks