CVE-2026-97571
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.
How to fix
- Linux Linuxd7db2e4953e4626339fd0075564a3e447650d37b, c8050386a2209b2a474c1eb4bd1574dc19129bfb, 37e08dc821a57fe0592c917486b638caa888b46d, b814dfbfeb0a68c9a52073f2caa05a2d5247a329, 6.12.112 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 0997443906b96a051011f220a61e6dce4602ec54 ≤ v < d7db2e4953e4626339fd0075564a3e447650d37b, bd649c5cc958169b8a8a3e77ea926d92d472b02a ≤ v < c8050386a2209b2a474c1eb4bd1574dc19129bfb, bd649c5cc958169b8a8a3e77ea926d92d472b02a ≤ v < 37e08dc821a57fe0592c917486b638caa888b46d, bd649c5cc958169b8a8a3e77ea926d92d472b02a ≤ v < b814dfbfeb0a68c9a52073f2caa05a2d5247a329, 6.12.20 ≤ v < 6.12.112, 6.13 | d7db2e4953e4626339fd0075564a3e447650d37b, c8050386a2209b2a474c1eb4bd1574dc19129bfb, 37e08dc821a57fe0592c917486b638caa888b46d, b814dfbfeb0a68c9a52073f2caa05a2d5247a329, 6.12.112 |
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