High [CVE-2026-89526] Linux kernel: svcrdma vulnerability allows remote information disclosure and memory corruption.
This high-severity Red Hat Linux advisory covers CVE-2026-89526.
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Summary
A flaw was found in the `svcrdma` component of the Linux kernel. A remote attacker can exploit this vulnerability by supplying a crafted `RPC/RDMA Read chunk position` field that is not properly validated against the received inline body length.
This can lead to an underflow, exposing adjacent slab memory or allowing data to be copied past the receive buffer into request pages. The most significant impact is information disclosure, potentially leading to memory corruption.
Red Hat severity: Important — CVSS 8.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-125.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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