CVE-2026-97571: Linux kernel · bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc()
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 10% 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 properly checks buffer allocation failures in the bnxt_en driver and frees resources on failure. Users should apply the updated Linux kernel versions that include this patch. Since this is a kernel-level fix, upgrading to a patched kernel version is the recommended remediation.
Description
A vulnerability in the Linux kernel's bnxt_en driver was resolved involving improper handling of buffer allocation failures in the bnxt_queue_mem_alloc() function. The issue occurs when bnxt_alloc_one_tpa_info_data() returns an error due to allocation failure, but bnxt_queue_mem_alloc() ignores this error and installs a partially initialized ring. This can lead to the hardware selecting an uninitialized slot with a zero DMA address, potentially causing malfunction. The fix involves checking the allocation return value and properly freeing resources on failure.
References
- ubuntu.com/security/CVE-2026-97571 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97571 (opens in a new tab)
- git.kernel.org/stable/c/c8050386a2209b2a474c1eb4bd1574dc19129bfb (opens in a new tab)
- git.kernel.org/stable/c/37e08dc821a57fe0592c917486b638caa888b46d (opens in a new tab)
- git.kernel.org/stable/c/b814dfbfeb0a68c9a52073f2caa05a2d5247a329 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97571 (opens in a new tab)
- git.kernel.org/stable/c/d7db2e4953e4626339fd0075564a3e447650d37b (opens in a new tab)