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CVE-2026-64269

kernel: RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg

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Severity

Moderate

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · July 25, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's RDMA (Remote Direct Memory Access) rtrs-srv module. A remote attacker can exploit this vulnerability by sending a crafted RDMA-Write length during an RTRS READ operation that exceeds the intended buffer size. This out-of-bounds read can lead to information disclosure, allowing the attacker to read sensitive host memory. In some configurations, this could also result in a denial of service.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-125 · Out-of-bounds Read