Red Hat Security Advisory

RHSA-2026:5732

kernel-rt security update

Released 2026-03-25 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.171.1.rt21.243.el9_0, kernel-rt-core-5.14.0-70.171.1.rt21.243.el9_0, kernel-rt-debug-5.14.0-70.171.1.rt21.243.el9_0 +9
Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.171.1.rt21.243.el9_0, kernel-rt-core-5.14.0-70.171.1.rt21.243.el9_0, kernel-rt-debug-5.14.0-70.171.1.rt21.243.el9_0 +7

Fixes 3 records

TI-2025-26910 CVE-2025-40240 · GHSA-p7wh-phc3-g7xr

sctp: avoid NULL dereference when chunk data buffer is missing

LOW 34

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk->skb pointer is dereferenced in the if-block where it's supposed to be NULL only.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00644 Published 2025-12-04 Partial fix · 5.4.301, 5.10.246 +6

TI-2022-25479 CVE-2022-49985 · GHSA-w75m-wgp8-wc83

bpf: Don't use tnum_range on array range checking for poke descriptors

LOW 34

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't use tnum_range on array range checking for poke descriptors Hsin-Wei reported a KASAN splat triggered by their BPF runtime fuzzer which is ba…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00264 Published 2025-06-18 Partial fix · 5.10.140, 5.15.64 +2 CWE-125

TI-2025-43235 CVE-2025-71085 · GHSA-hjpx-f2r6-rr4q

ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr()

LOW 33

In the Linux kernel, the following vulnerability has been resolved: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() There exists a kernel oops caused by a BUG_ON(nhead < 0) at net/core/skbuff.c:2232…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00305 Published 2026-01-13 Partial fix · 5.10.248, 5.15.198 +5 CWE-190