UBUNTU-CVE-2026-97572: Medium severity ubuntu/linux-aws vulnerability

In the Linux kernel, the following vulnerability has been resolved: bnxten: Propagate RX ring init failures in bnxtinitnic() bnxtinitrxrings() returns an error when bnxtalloconerxring() fails, but bnxtinitnic() discards that return value and calls bnxtinitchip(), which enables TPA. If an allocation fails, this could leave rxr->rxtpa[] partially zeroed and TPA would be enabled over an array with zeroed entries. This would lead to a zeroed DMA address being handed out if the aggidx is translated to a SW index at a zeroed entry. Fix this by propagating the error out of bnxtinitnic(). Both callers already check its return value and unwind with bnxtfreeskbs() and bnxtfreemem(), which tolerate a partially initialized RX ring.