CVE-2026-98967
kernel: cxgb4/ch_ktls: disable softirqs around tid_list erases
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's cxgb4 network driver. During connection cleanup or error handling, the driver removes entries from an internal tracking table without disabling software interrupts. If concurrent network traffic triggers an interrupt on the same processor core during this cleanup, it can attempt to acquire the lock held by the interrupted process, causing a deadlock. This issue leads to a kernel hang, resulting in a Denial of Service (DoS).
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 · 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-833 · Deadlock