CVE-2026-98018
kernel: net: mctp: i3c: serialize probe with bus removal
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel. A race condition in the Management Component Transport Protocol (MCTP) I3C driver occurs when device discovery releases a lock prematurely while a bus is simultaneously removed. A local user could exploit this synchronization flaw to access freed memory, resulting in a system crash and Denial of Service (DoS) or potential privilege escalation.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference