CVE-2026-98845: Linux kernel · tpm: Disable TPM on null key name mismatch
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in f6599d8830fe7ddab7334cc17846fd9ac9a7fa50 : patch Linux kernel soon.
Data as of 26 Oct 2026, 13:47 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in f6599d8830fe7ddab7334cc17846fd9ac9a7fa50, a03d0c64cd827a622578623a78defd66b6593b82, 96c46c75b0d470b4204f9fe1bdb075cd2ebaebfa +2
Exploitation evidence
Disclosed: evidence found.
CVE published 18 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
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
This vulnerability is fixed in Linux kernel version 6.12 and associated commits. Users should upgrade to version 6.12 or later to ensure the TPM chip is properly disabled on null key name mismatches. No additional mitigation is required once the system is updated.
Description
A vulnerability in the Linux kernel TPM driver allows the TPM chip to continue serving commands despite a null key name integrity check failure. This flaw means that the TPM is not disabled when a mismatch is detected, potentially allowing unauthorized TPM operations. The issue is fixed by changing the error handling to disable the TPM chip upon detection of the mismatch.
References
- git.kernel.org/stable/c/a03d0c64cd827a622578623a78defd66b6593b82 (opens in a new tab)
- git.kernel.org/stable/c/96c46c75b0d470b4204f9fe1bdb075cd2ebaebfa (opens in a new tab)
- git.kernel.org/stable/c/f6599d8830fe7ddab7334cc17846fd9ac9a7fa50 (opens in a new tab)
- git.kernel.org/stable/c/015fb29a748342a186f37b602ac70017098c8251 (opens in a new tab)