CVE-2026-89528

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-89528

Key Details

CVE	CVE-2026-89528
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

svcrdma: Reject Read lists that exceed the page budget

Individual Read segment lengths are validated at decode time, but

nothing prevents a requester from sending multiple segments whose

cumulative length exceeds the rq_pages array budget. When one

segment fills the page array exactly, the runtime guard in

svc_rdma_build_read_segment() is bypassed because len reaches zero.

A subsequent segment then accesses the NULL sentinel slot at

rq_pages[rq_maxpages], resulting in a NULL pointer dereference during

DMA mapping.

Accumulate pages across all Read segments and reject the message at

decode time when the total would overflow the page budget. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89528
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89528

Source

Reference

NVD

CVE