ice: fix use-after-free in dynamic port cleanup

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In the Linux kernel, the following vulnerability has been resolved: ice: fix use-after-free in dynamic port cleanup ice_dealloc_dynamic_port() uses dyn_port->vsi->idx to erase the dynamic port from pf->dyn_ports. However, it frees the VSI before reading the index for the erase, resulting in a use-after-free. Follow the reverse of the allocation order in ice_alloc_dynamic_port() by erasing the xarray entry before freeing the VSI.

Source published

23 Oct 2026 12:22:08 UTC

Source modified

23 Oct 2026 12:22:08 UTC

Observed here

23 Oct 2026 16:01:20 UTC

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