CVE-2026-98018: Linux kernel · net: mctp: i3c: serialize probe with bus removal
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in e6541b2747682fdb2c6ded4a7cf7c39c4067a35c : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:05 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 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in e6541b2747682fdb2c6ded4a7cf7c39c4067a35c, 906d8dbafabfa81a30e3ade420cb9912f223a5e1, 765c5e357e67916a7aac8ead4ac2fa7d2bffe000 +1
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
Upgrade Linux kernel to e6541b2747682fdb2c6ded4a7cf7c39c4067a35c, 906d8dbafabfa81a30e3ade420cb9912f223a5e1, 765c5e357e67916a7aac8ead4ac2fa7d2bffe000 or 2b4707a149a55e8fa75c9ef32b359d60f470a566.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix has been implemented in the Linux kernel source code. Users should update to the fixed kernel versions identified by the commits e6541b2747682fdb2c6ded4a7cf7c39c4067a35c, 906d8dbafabfa81a30e3ade420cb9912f223a5e1, 765c5e357e67916a7aac8ead4ac2fa7d2bffe000, and 2b4707a149a55e8fa75c9ef32b359d60f470a566. No additional mitigation is required beyond applying these official fixes.
Description
A use-after-free vulnerability was identified and fixed in the Linux kernel's MCTP I3C driver. The issue occurs because the probe function releases a lock too early, allowing concurrent removal of the bus device, which leads to adding a list node through a freed pointer. This flaw has been corrected by holding the lock until the device is fully added.
References
- git.kernel.org/stable/c/e6541b2747682fdb2c6ded4a7cf7c39c4067a35c (opens in a new tab)
- git.kernel.org/stable/c/765c5e357e67916a7aac8ead4ac2fa7d2bffe000 (opens in a new tab)
- git.kernel.org/stable/c/906d8dbafabfa81a30e3ade420cb9912f223a5e1 (opens in a new tab)
- git.kernel.org/stable/c/2b4707a149a55e8fa75c9ef32b359d60f470a566 (opens in a new tab)