CVE-2026-97572: Linux kernel · bnxt_en: Propagate RX ring init failures in bnxt_init_nic()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available that propagates RX ring initialization errors properly in the bnxt_en driver. Users should update to patched kernel versions that include this fix. Since this is a kernel-level issue, applying the official kernel updates from the Linux distribution or vendor is the recommended remediation.
Description
A vulnerability in the Linux kernel's bnxt_en driver was resolved involving improper error propagation during RX ring initialization. The function bnxt_init_nic() ignored errors from bnxt_init_rx_rings(), potentially enabling TPA over partially zeroed RX ring entries, which could lead to zeroed DMA addresses being used. This issue was fixed by ensuring error propagation out of bnxt_init_nic(), allowing callers to properly handle failures and clean up resources.
References
- ubuntu.com/security/CVE-2026-97572 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97572 (opens in a new tab)
- git.kernel.org/stable/c/daadccd062fdca5e77a8cc22ffe35857803b6c49 (opens in a new tab)
- git.kernel.org/stable/c/b4c40f2c80d7bf50648878bc206a39adfbfaec6c (opens in a new tab)
- git.kernel.org/stable/c/dfd73af81cdb9f7b399754a59e2658a08211bee5 (opens in a new tab)
- git.kernel.org/stable/c/8e6a850c0746bb4be167aedf1ee57469fcda09a9 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97572 (opens in a new tab)
- git.kernel.org/stable/c/1f2d333ae2e1a73b7cc1c2a627587024cd147c01 (opens in a new tab)
- git.kernel.org/stable/c/6b24eca42619b93f69aebc2aa0a9fd28ac9a5085 (opens in a new tab)
- git.kernel.org/stable/c/c3eb07e78e628243cbb9bbb0115db802fb7a303f (opens in a new tab)
- git.kernel.org/stable/c/e40641638743b4b848d5ed78a0565afffc359d8e (opens in a new tab)