Red Hat Security Advisory

RHSA-2026:39180

kernel-rt security update

Released 2026-07-14 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.144.1.rt7.485.el8_10, kernel-rt-core-4.18.0-553.144.1.rt7.485.el8_10, kernel-rt-debug-4.18.0-553.144.1.rt7.485.el8_10 +9
Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.144.1.rt7.485.el8_10, kernel-rt-core-4.18.0-553.144.1.rt7.485.el8_10, kernel-rt-debug-4.18.0-553.144.1.rt7.485.el8_10 +7

Fixes 3 records

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

TI-2026-33840 CVE-2026-46116 · GHSA-96hg-7p79-ggx2

xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

LOW 35

In the Linux kernel, the following vulnerability has been resolved: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete KASAN reproduces a slab-use-after-free in __xfrm_state_delete()'s hlist_del_rcu calls u…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0013 Published 2026-05-28 Partial fix · 5.10.261, 5.15.210 +6 CWE-416

TI-2026-33810 CVE-2026-46086 · GHSA-qcf5-mj4w-x99v

net: bridge: use a stable FDB dst snapshot in RCU readers

LOW 24

In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00129 Published 2026-05-27 Partial fix · 5.10.259, 5.15.210 +6 CWE-476