CVE-2026-97409: Linux kernel · nvme-fc: Do not cancel requests in io target before it is initialized
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% 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 24 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 updates the nvme-fc driver to properly check initialization of the I/O tagset before aborting requests and cancels the error workqueue appropriately. Users should apply the updated Linux kernel versions containing this patch to mitigate the vulnerability.
Description
A vulnerability in the Linux kernel's nvme-fc driver was resolved that involved canceling requests in the I/O target before it was properly initialized. This could cause warnings and potential errors during error recovery when admin request timeouts trigger aborts of inflight requests. The fix ensures that the I/O tagset is confirmed to be initialized before aborting requests and cancels the error workqueue before removing the I/O tagset.
References
- ubuntu.com/security/CVE-2026-97409 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97409 (opens in a new tab)
- git.kernel.org/stable/c/dd39064d2948b14dbe4f364fe4b3c9cfc632cc21 (opens in a new tab)
- git.kernel.org/stable/c/da930308b4bc24c335574e85ca84ff70a988cf05 (opens in a new tab)
- git.kernel.org/stable/c/ee38469f88492df99e1d97f03aa40ecfd218934f (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97409 (opens in a new tab)
- git.kernel.org/stable/c/5488e2706c58444a24e15773237dcc0bedcd771f (opens in a new tab)