What is RHSA-2026:0804?

RHSA-2026:0804 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-2026:0804 cover?

RHSA-2026:0804 covers the following CVE IDs: CVE-2025-37849, CVE-2025-37891, CVE-2025-39697, CVE-2025-40154, CVE-2025-68285, CVE-2025-21795. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:0804?

RHSA-2026:0804 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:0804HighCVSS 7.5

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

January 19, 2026

Last Modified

June 30, 2026

🔗 CVE IDs covered (6)

CVE-2025-37849 →CVE-2025-37891 →CVE-2025-39697 →CVE-2025-40154 →CVE-2025-68285 →CVE-2025-21795 →

📋 Description

CVE-2025-21795 — kernel: NFSD: fix hang in nfsd4_shutdown_callback CVE-2025-37849 — kernel: KVM: arm64: Tear down vGIC on failed vCPU creation CVE-2025-37891 — kernel: Linux kernel: ALSA: ump buffer overflow via malformed UMP SysEx message CVE-2025-39697 — kernel: NFS: Fix a race when updating an existing write CVE-2025-40154 — kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping CVE-2025-68285 — kernel: libceph: fix potential use-after-free in have_mon_and_osd_map()

🔗 References (9)

selfhttps://access.redhat.com/errata/RHSA-2026:0804
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2348523
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2365271
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2367202
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2393481
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2414494
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2422801
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0804.json