CVE-2026-98353
kernel: RDMA/erdma: Use IRQ-safe XArray helpers for QP and CQ tables
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 6, 2026
Updated · October 7, 2026
Description
A flaw was found in the Linux kernel's erdma (Elastic Remote Direct Memory Access) driver. A local user could cause a Denial of Service (DoS) through a system deadlock during concurrent queue creation and hardware interrupt handling. Because internal queue updates do not use interrupt-safe locking, an incoming interrupt attempting to look up queue resources can spin indefinitely waiting for an already-held lock, leading to a system hang.
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-833 · Deadlock