What is RHSA-2026:39984?

RHSA-2026:39984 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kernel security update

Which CVE IDs does RHSA-2026:39984 cover?

RHSA-2026:39984 covers the following CVE IDs: CVE-2026-43499, CVE-2026-53166. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:39984?

RHSA-2026:39984 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2026:39984HighCVSS 7.8

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

July 15, 2026

Last Modified

July 15, 2026

🔗 CVE IDs covered (2)

CVE-2026-43499 →CVE-2026-53166 →

📋 Description

CVE-2026-43499 — kernel: rtmutex: Use waiter::task instead of current in remove_waiter() CVE-2026-53166 — kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2026:39984
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2480453
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2492805
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2498915
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_39984.json