CVE-2026-90423
kernel: RDMA/rxe: Fix UAF in ODP init error-handling path
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's RDMA/rxe component. An error in the On-Demand Paging (ODP) initialization path can lead to a Use-After-Free (UAF) vulnerability. During error handling, memory is prematurely released, but a pointer to it is not properly cleared. This allows subsequent operations to access or free the already-freed memory, potentially leading to system instability or information disclosure.
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-826 · Premature Release of Resource During Expected Lifetime