CVE-2026-97574: Linux kernel · bnxt_en: Don't free the live ring's TPA state on queue restart failure
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 15:59 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 has been implemented to initialize the clone's pointers to NULL to prevent freeing live ring memory inadvertently. Users should apply the official kernel updates that include this fix for the affected versions. Since this is a kernel-level issue, updating to a patched kernel version is the recommended remediation.
Description
A vulnerability in the Linux kernel's bnxt_en driver was resolved that involved improper freeing of memory related to the live ring's TPA state on queue restart failure. Specifically, during a queue restart failure, the live ring's memory could be freed while still in use due to shallow copying and incomplete pointer initialization in the clone structure. This could lead to use-after-free conditions. The fix involved initializing the clone's pointers to NULL to prevent inadvertent freeing of live ring state memory.
References
- ubuntu.com/security/CVE-2026-97574 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97574 (opens in a new tab)
- git.kernel.org/stable/c/5ce7f36c334d723954855ac769ede2fe0e8f89c8 (opens in a new tab)
- git.kernel.org/stable/c/8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27 (opens in a new tab)
- git.kernel.org/stable/c/0596a7caa6fc283e142716739099c038d8714082 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97574 (opens in a new tab)
- git.kernel.org/stable/c/e42287b4d38d653f7d4a47f6c29b0c01288bb050 (opens in a new tab)