All vulnerabilities
CVE-2026-97572

Linux: bnxt_en: Propagate RX ring init failures in bnxt_init_nic()

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6b24eca42619b93f69aebc2aa0a9fd28ac9a5085Also 1f2d333ae2e1a73b7cc1c2a627587024cd147c01, 8e6a850c0746bb4be167aedf1ee57469fcda09a9CVE List
Published25 Sep 2026Updated 19 Oct 2026CVE List

What fixes it

  • 6b24eca42619b93f69aebc2aa0a9fd28ac9a5085LinuxCVE List
  • 1f2d333ae2e1a73b7cc1c2a627587024cd147c01LinuxCVE List
  • 8e6a850c0746bb4be167aedf1ee57469fcda09a9LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 18

  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before e40641638743b4b848d5ed78a0565afffc359d8eCVE List
  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before 6b24eca42619b93f69aebc2aa0a9fd28ac9a5085CVE List
  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before 1f2d333ae2e1a73b7cc1c2a627587024cd147c01CVE List
  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before c3eb07e78e628243cbb9bbb0115db802fb7a303fCVE List
  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before daadccd062fdca5e77a8cc22ffe35857803b6c49CVE List
  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before b4c40f2c80d7bf50648878bc206a39adfbfaec6cCVE List
  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before dfd73af81cdb9f7b399754a59e2658a08211bee5CVE List
  • Linuxaffected: c0c050c58d840994ba842ad1c338a98e7c12b764 before 8e6a850c0746bb4be167aedf1ee57469fcda09a9CVE List
  • Linuxaffected: 4.4CVE List
  • Linuxunaffected: all versions before 4.4CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.111 through 6.12.*CVE List
  • Linuxunaffected: 6.18.53 through 6.18.*CVE List
  • Linuxunaffected: 7.2.7 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 8