CVE-2026-97527: Linux kernel · scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation 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 introduces a dedicated per-fcport spinlock to serialize access to the unsol_ctx_head list. Users should update affected linux-hwe-edge kernel versions to incorporate this patch. Since this is a kernel-level concurrency issue, applying the official fix is the recommended remediation.
Description
A concurrency vulnerability in the Linux kernel's qla2xxx SCSI driver was resolved by introducing a dedicated per-fcport spinlock to serialize modifications to the NVMe unsolicited context list. The vulnerability involved unsynchronized concurrent modifications to a shared list, which could corrupt list pointers. This issue affects specific versions of the linux-hwe-edge kernel and has a CVSS score of 8.8, indicating high impact on confidentiality, integrity, and availability.
References
- ubuntu.com/security/CVE-2026-97527 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97527 (opens in a new tab)
- git.kernel.org/stable/c/b211d138cad86f749826d6132db6388eded992d8 (opens in a new tab)
- git.kernel.org/stable/c/76da0c43c63eb0496649e372ac64466364d0fe7d (opens in a new tab)
- git.kernel.org/stable/c/4d8ad6bc8cc5eff1870cef00a0d611f38f8b6bd0 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97527 (opens in a new tab)
- git.kernel.org/stable/c/c1ee12eecbab9674fb73c9e00a93fac655d5a5dc (opens in a new tab)