CVE-2026-90309: Linux 6.0

CVE-2026-90309 affects azl3 kernel 6.6.150.1-1 on Azure Linux 3.0. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00169 (percentile 0.05784), scored 17-Oct-2026.

Affected technology

Linux · 155055771704f8cbb5c176a4309b7dc30a50450c to before 610ef81797bb4f709e8675c1d8d093bb9ccdcbd8, 155055771704f8cbb5c176a4309b7dc30a50450c to before c0a83f29a24c7e7f8516630848ef6db4c174deed, 155055771704f8cbb5c176a4309b7dc30a50450c to before 05b8ca493dd02319bca93c640b259c2ba51ef321, 155055771704f8cbb5c176a4309b7dc30a50450c to before 1fc9c1933959d2776a1ce7bf424251b8b5b586cd, 155055771704f8cbb5c176a4309b7dc30a50450c to before 4545f355654d044d35a31cd01cc46f491a8a7c36, 155055771704f8cbb5c176a4309b7dc30a50450c to before 98df2aee1459ee1c62c70cbe9b370d2a532aea36
Linux

Linux · 6.0
Linux

Component: Not specified by the source
File: drivers/infiniband/hw/erdma/erdma_eq.c, drivers/infiniband/hw/erdma/erdma_verbs.c, drivers/infiniband/hw/erdma/erdma_verbs.h

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 19-Oct-2026 10:36 UTC

Product: azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
CCR priority: 31.2 /100 (P4)
CVSS 3.1: 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.00169 · percentile 0.05784 · 2026-10-17
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-18 12:55:59.341568+00:00 UTC
Microsoft MSRC Security Update Guide (CVRF) · Source record · observed 2026-10-04 07:08:49.022374+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-19 10:33:46.008150+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-90309.html