CVE-2026-97491: Linux 2.6.30

CVE-2026-97491 affects azl3 kernel 6.6.157.1-1 on Azure Linux 3.0. CVSS 3.1 base score 4.4 (Microsoft Security Response Center). EPSS 0.00173 (percentile 0.06341), scored 24-Oct-2026. Fixed version: b3621acf640e32dcb986d9b3767f2387f29dad05. Fixed version: ac0bc28da5150c4fa81a76172fff5ec70f2063eb. Fixed version: 934a6381c79d815680c955d676791322e020bfda. Fixed version: 07a348d48e589b91a0d5a5cfa0de137cc703fabf. Fixed version: db22e77df66353f1299153f6fa9620a2825bc63f. Fixed version: caa51e6da596ed6008cd06605a725568b8e7be4e. Fixed version: 16f48efaeb6991193fb7775c577f06f5b20b0c90. Fixed version: 5.10.271. Fixed version: 5.15.222.

Affected technology

Linux · ec16227e14141e4fd7ae76354c09dadfe2449d9e to before b3621acf640e32dcb986d9b3767f2387f29dad05, ec16227e14141e4fd7ae76354c09dadfe2449d9e to before ac0bc28da5150c4fa81a76172fff5ec70f2063eb, ec16227e14141e4fd7ae76354c09dadfe2449d9e to before 934a6381c79d815680c955d676791322e020bfda, ec16227e14141e4fd7ae76354c09dadfe2449d9e to before 07a348d48e589b91a0d5a5cfa0de137cc703fabf, ec16227e14141e4fd7ae76354c09dadfe2449d9e to before db22e77df66353f1299153f6fa9620a2825bc63f, ec16227e14141e4fd7ae76354c09dadfe2449d9e to before caa51e6da596ed6008cd06605a725568b8e7be4e, ec16227e14141e4fd7ae76354c09dadfe2449d9e to before 16f48efaeb6991193fb7775c577f06f5b20b0c90
Linux

Linux · 2.6.30
Linux

Component: Not specified by the source
File: net/rds/ib_cm.c

Attack conditions (Microsoft Security Response Center, CVSS 3.1): Local · High privileges required · No user interaction required

What an attacker can do

Microsoft Security Response Center’s CVSS 3.1 assessment rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 25-Oct-2026 10:20 UTC

Product: azl3 kernel 6.6.157.1-1 on Azure Linux 3.0
CCR priority: 17.6 /100 (P5)
CVSS 3.1: 4.4 /10 · CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H · Microsoft Security Response Center
EPSS: 0.00173 · percentile 0.06341 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
GitHub Advisory Database · Source record · observed 2026-10-04 06:01:24.332572+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 2026-10-04 05:55:03.931280+00:00 UTC
OSV.dev · Source record · observed 2026-10-25 01:59:11.642217+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-97491.html