CVE-2026-98931: Linux kernel · mtd: spinand: fix NULL pointer dereference with no ECC engine
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 02:27 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 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 adds a helper function to safely check the ECC engine pointer before dereferencing it. Users should apply the updated Linux kernel versions that include this fix to prevent kernel crashes related to SPI-NAND devices with no ECC engine.
Description
A vulnerability in the Linux kernel's SPI-NAND driver causes a NULL pointer dereference when the NAND device is configured with no ECC engine. This occurs because the code dereferences a NULL pointer unconditionally, leading to a kernel oops during device probing. The issue has been fixed by adding a helper function that safely checks for a pipelined ECC engine, preventing the NULL dereference.
References
- ubuntu.com/security/CVE-2026-98931 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98931 (opens in a new tab)
- git.kernel.org/stable/c/3c765fd5212c1bbc71568b1518a7ec963a7040b4 (opens in a new tab)
- git.kernel.org/stable/c/77c449c9c946fc420008dc55cd30f53749c915e4 (opens in a new tab)
- git.kernel.org/stable/c/80e8b0ea73ba295e92dfb6cf1c41df9da64234c6 (opens in a new tab)
- git.kernel.org/stable/c/b890e6163761ddb580cc74f43e15f8bbde15647e (opens in a new tab)
- git.kernel.org/stable/c/fc2f651f520394893b14b75281a01e502bfa73bb (opens in a new tab)