CVE-2026-97572
Description
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Propagate RX ring init failures in bnxt_init_nic() bnxt_init_rx_rings() returns an error when bnxt_alloc_one_rx_ring() fails, but bnxt_init_nic() discards that return value and calls bnxt_init_chip(), which enables TPA. If an allocation fails, this could leave rxr->rx_tpa[] 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 agg_idx is translated to a SW index at a zeroed entry. Fix this by propagating the error out of bnxt_init_nic(). Both callers already check its return value and unwind with bnxt_free_skbs() and bnxt_free_mem(), which tolerate a partially initialized RX ring.
How to fix
- Linux Linuxe40641638743b4b848d5ed78a0565afffc359d8e, 6b24eca42619b93f69aebc2aa0a9fd28ac9a5085, 1f2d333ae2e1a73b7cc1c2a627587024cd147c01, c3eb07e78e628243cbb9bbb0115db802fb7a303f, daadccd062fdca5e77a8cc22ffe35857803b6c49, b4c40f2c80d7bf50648878bc206a39adfbfaec6c, dfd73af81cdb9f7b399754a59e2658a08211bee5, 8e6a850c0746bb4be167aedf1ee57469fcda09a9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < e40641638743b4b848d5ed78a0565afffc359d8e, c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < 6b24eca42619b93f69aebc2aa0a9fd28ac9a5085, c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < 1f2d333ae2e1a73b7cc1c2a627587024cd147c01, c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < c3eb07e78e628243cbb9bbb0115db802fb7a303f, c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < daadccd062fdca5e77a8cc22ffe35857803b6c49, c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < b4c40f2c80d7bf50648878bc206a39adfbfaec6c, c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < dfd73af81cdb9f7b399754a59e2658a08211bee5, c0c050c58d840994ba842ad1c338a98e7c12b764 ≤ v < 8e6a850c0746bb4be167aedf1ee57469fcda09a9, 4.4 | e40641638743b4b848d5ed78a0565afffc359d8e, 6b24eca42619b93f69aebc2aa0a9fd28ac9a5085, 1f2d333ae2e1a73b7cc1c2a627587024cd147c01, c3eb07e78e628243cbb9bbb0115db802fb7a303f, daadccd062fdca5e77a8cc22ffe35857803b6c49, b4c40f2c80d7bf50648878bc206a39adfbfaec6c, dfd73af81cdb9f7b399754a59e2658a08211bee5, 8e6a850c0746bb4be167aedf1ee57469fcda09a9 |
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