CVE-2026-93814: Linux kernel · spi: core: Abort active target transfer on controller suspend
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation 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 invokes the controller's target_abort callback during suspend to abort active SPI transfers in target mode. Users should apply the official Linux kernel updates that include this fix to prevent system hangs or resume failures related to this issue.
Description
A vulnerability in the Linux kernel's SPI core was resolved that could cause the system to hang or fail to resume cleanly if an SPI controller in target mode has an active transfer during system suspend. The issue occurs because the suspend process does not abort the ongoing transfer, leaving hardware in an inconsistent state. The fix involves invoking the controller's target_abort callback during suspend to cleanly terminate active transfers.
References
- ubuntu.com/security/CVE-2026-93814 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-93814 (opens in a new tab)
- git.kernel.org/stable/c/c1bab046d4786c5b17aab7c5225bf0d4a2a2d19b (opens in a new tab)
- git.kernel.org/stable/c/b81ac605763c319ca9928a237818ab4e8ab7bb59 (opens in a new tab)
- git.kernel.org/stable/c/f6a0cafa265c8a4aed585d873747e3b88b146eed (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-93814 (opens in a new tab)
- git.kernel.org/stable/c/1cc84ca8599b8fa64014821bca453ebb3326c71e (opens in a new tab)
- git.kernel.org/stable/c/a75d9eb78c89d3fa8d503966c91a51f02eced768 (opens in a new tab)