Red Hat Security Advisory

RHSA-2026:39984

kernel security update

Released 2026-07-15 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.198.1.el8_4, kernel-4.18.0-305.198.1.el8_4, kernel-abi-stablelists-4.18.0-305.198.1.el8_4 +14
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.198.1.el8_4, kernel-4.18.0-305.198.1.el8_4, kernel-abi-stablelists-4.18.0-305.198.1.el8_4 +14

Fixes 2 records

TI-2026-31676 CVE-2026-43499 · GHSA-cqc6-9f34-295v

rtmutex: Use waiter::task instead of current in remove_waiter()

HIGH 69

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollba…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.05372 Published 2026-05-21 Partial fix · 5.10.261, 5.15.212 +6 CWE-416

TI-2026-46164 CVE-2026-64600 · GHSA-6p99-w6f4-qcvq

xfs: resample the data fork mapping after cycling ILOCK

LOW 36

In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK xfs_reflink_fill_{cow_hole,delalloc} are both presented with an inode, a data fork mapping, and…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00467 Published 2026-07-23 Fixed in 5.15.212, 6.1.178 +5 CWE-362