CVE-2026-97571bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc()

Official description

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc() bnxt_alloc_one_tpa_info_data() returns -ENOMEM as soon as one allocation fails. This leaves the remaining rxr->rx_tpa[] entries zeroed. bnxt_queue_mem_alloc() discards that return value, so the partially initialized ring is installed by bnxt_queue_start(). Since the agg_id is picked by the hardware and bnxt_alloc_agg_idx maps it to a SW index in rxr->rx_tpa[], it is possible that an uninitialized slot can be chosen which would hand a zero DMA address to the device. Fix this by checking the return value of bnxt_alloc_one_tpa_info_data and unwinding, freeing the ring buffers.

Affected packages & fixed versions

Affected products (as reported)

References

• https://git.kernel.org/stable/c/d7db2e4953e4626339fd0075564a3e447650d37b
• https://git.kernel.org/stable/c/c8050386a2209b2a474c1eb4bd1574dc19129bfb
• https://git.kernel.org/stable/c/37e08dc821a57fe0592c917486b638caa888b46d
• https://git.kernel.org/stable/c/b814dfbfeb0a68c9a52073f2caa05a2d5247a329