CVE-2026-97968: Linux kernel · hwmon: (corsair-cpro) Create debugfs entries after hwmon registration
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 5% 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 is available that changes the debugfs entry creation timing to after successful hwmon device registration, preventing stale debugfs entries referencing freed memory. Users should update to a patched Linux kernel version that includes this fix. Since this is a kernel-level issue, applying the official kernel update is the recommended remediation.
Description
A vulnerability in the Linux kernel hwmon subsystem (corsair-cpro driver) was resolved by changing the timing of debugfs entry creation to occur after hwmon device registration. Previously, debugfs entries were created before device registration, and if registration failed, the entries remained referencing freed memory, leading to potential use-after-free when accessed. The fix ensures debugfs entries are only created after successful device registration, preventing stale references.
References
- ubuntu.com/security/CVE-2026-97968 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97968 (opens in a new tab)
- git.kernel.org/stable/c/6c5d333216a937044acd3336e9ec7e30ff2eaee4 (opens in a new tab)
- git.kernel.org/stable/c/fdfe17cb865715aad30328678344eb79889207ab (opens in a new tab)
- git.kernel.org/stable/c/508baf1713f32f287bfb4f85d759403ec8ba35a3 (opens in a new tab)
- git.kernel.org/stable/c/a58a966a440071bb877ef62535d1016952f83101 (opens in a new tab)