CVE-2026-90309
kernel: RDMA/erdma: Hold CQ references when processing EQ events
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 14, 2026
Description
A flaw was found in the Linux kernel's RDMA/erdma component. This vulnerability stems from improper management of Completion Queue (CQ) references during Event Queue (EQ) event processing. This can lead to a situation where a CQ is deallocated while still in use by an EQ handler, resulting in memory corruption. Such an issue could cause system instability or a denial of service.
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-911 · Improper Update of Reference Count