CVE-2025-68379
kernel: Linux kernel: Denial of Service in RDMA subsystem via repeated SRQ modification
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · July 30, 2026
Description
A flaw was found in the Linux kernel's Remote Direct Memory Access (RDMA) subsystem. A local attacker could cause a system crash, leading to a Denial of Service (DoS), by repeatedly attempting to modify a Shared Receive Queue (SRQ) under specific error conditions. This issue arises when a previous modification attempt fails, leaving a critical data structure in an invalid state, which then causes a system crash upon a subsequent modification attempt.
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-476 · NULL Pointer Dereference