CVE-2026-89514: Linux kernel · scsi: fnic: Use GFP_ATOMIC for VLAN alloc under spinlock
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 14:05 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 11 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 changes the VLAN descriptor allocation to use GFP_ATOMIC instead of GFP_KERNEL under the spinlock. Users should apply the updated linux-hwe-edge kernel versions that include this fix. No additional mitigation is required beyond applying the official patch.
Description
A vulnerability in the Linux kernel's fnic SCSI driver was identified where VLAN descriptor allocation used GFP_KERNEL under a spinlock, which can cause sleeping in an atomic context leading to warnings or deadlocks. This issue has been resolved by changing the allocation to use GFP_ATOMIC, making it safe under the IRQ-safe spinlock. The vulnerability affects specific linux-hwe-edge kernel versions.
References
- nvd.nist.gov/vuln/detail/CVE-2026-89514 (opens in a new tab)
- git.kernel.org/stable/c/9639c6324524ea3f934908bd51f02430000954ab (opens in a new tab)
- git.kernel.org/stable/c/c4ade059aaeb51fdb3f4ae71e1ea3e2019b85178 (opens in a new tab)
- git.kernel.org/stable/c/d86f65aed01408613607f8fc31493f07554788f2 (opens in a new tab)
- ubuntu.com/security/CVE-2026-89514 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-89514 (opens in a new tab)
- git.kernel.org/linus/9639c6324524ea3f934908bd51f02430000954ab (opens in a new tab)