CVE-2026-97572

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < e40641638743b4b848d5ed78a0565afffc359d8eaffected
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < 6b24eca42619b93f69aebc2aa0a9fd28ac9a5085affected
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < 1f2d333ae2e1a73b7cc1c2a627587024cd147c01affected
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < c3eb07e78e628243cbb9bbb0115db802fb7a303faffected
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < daadccd062fdca5e77a8cc22ffe35857803b6c49affected
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < b4c40f2c80d7bf50648878bc206a39adfbfaec6caffected
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < dfd73af81cdb9f7b399754a59e2658a08211bee5affected
LinuxLinuxc0c050c58d840994ba842ad1c338a98e7c12b764 < 8e6a850c0746bb4be167aedf1ee57469fcda09a9affected
LinuxLinux4.4affected
LinuxLinux0 < 4.4unaffected
LinuxLinux5.10.271 <= 5.10.*unaffected
LinuxLinux5.15.222 <= 5.15.*unaffected
LinuxLinux6.1.189 <= 6.1.*unaffected
LinuxLinux6.6.158 <= 6.6.*unaffected
LinuxLinux6.12.111 <= 6.12.*unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc3 <= *unaffected

Weaknesses

References