Skip to content
Fencer Vulns
high 7.8

CVE-2025-38718 json

sctp: linearize cloned gso packets in sctp_rcv

published 2025-09-04 14 mo ago modified 2026-10-19 20 d ago also EUVD-2025-26751

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

sctp: linearize cloned gso packets in sctp_rcv

A cloned head skb still shares these frag skbs in fraglist with the original head skb. It's not safe to access these frag skbs.

syzbot reported two use-of-uninitialized-memory bugs caused by this:

BUG: KMSAN: uninit-value in sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211 sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211 sctp_assoc_bh_rcv+0x1a7/0xc50 net/sctp/associola.c:998 sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88 sctp_backlog_rcv+0x397/0xdb0 net/sctp/input.c:331 sk_backlog_rcv+0x13b/0x420 include/net/sock.h:1122 __release_sock+0x1da/0x330 net/core/sock.c:3106 release_sock+0x6b/0x250 net/core/sock.c:3660 sctp_wait_for_connect+0x487/0x820 net/sctp/socket.c:9360 sctp_sendmsg_to_asoc+0x1ec1/0x1f00 net/sctp/socket.c:1885 sctp_sendmsg+0x32b9/0x4a80 net/sctp/socket.c:2031 inet_sendmsg+0x25a/0x280 net/ipv4/af_inet.c:851 sock_sendmsg_nosec net/socket.c:718 [inline]

and

BUG: KMSAN: uninit-value in sctp_assoc_bh_rcv+0x34e/0xbc0 net/sctp/associola.c:987 sctp_assoc_bh_rcv+0x34e/0xbc0 net/sctp/associola.c:987 sctp_inq_push+0x2a3/0x350 net/sctp/inqueue.c:88 sctp_backlog_rcv+0x3c7/0xda0 net/sctp/input.c:331 sk_backlog_rcv+0x142/0x420 include/net/sock.h:1148 __release_sock+0x1d3/0x330 net/core/sock.c:3213 release_sock+0x6b/0x270 net/core/sock.c:3767 sctp_wait_for_connect+0x458/0x820 net/sctp/socket.c:9367 sctp_sendmsg_to_asoc+0x223a/0x2260 net/sctp/socket.c:1886 sctp_sendmsg+0x3910/0x49f0 net/sctp/socket.c:2032 inet_sendmsg+0x269/0x2a0 net/ipv4/af_inet.c:851 sock_sendmsg_nosec net/socket.c:712 [inline]

This patch fixes it by linearizing cloned gso packets in sctp_rcv().

Patch / fix

  • Linux Linux 5.4.297, 5.10.241, 5.15.190, 6.1.162, 6.6.103, 6.12.43, 6.15.11, 6.16.2, 6.17
  • linux Debian 12 6.1.162-1
  • linux Debian 13 6.12.43-1
  • linux Debian 14 6.16.3-1

debian advisories DEBIAN-CVE-2025-38718

  • linux Ubuntu 22.04 LTS 5.15.0-163.173
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1097.104
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1097.106
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1093.99
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-38718

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 10.0 6.12.0-55.38.1.el10_0
  • rv RHEL 10.0 6.12.0-55.38.1.el10_0
  • perf RHEL 10.0 6.12.0-55.38.1.el10_0
  • rtla RHEL 10.0 6.12.0-55.38.1.el10_0
  • libperf RHEL 10.0 6.12.0-55.38.1.el10_0
  • kernel-rt RHEL 10.0 6.12.0-55.38.1.el10_0
  • kernel-64k RHEL 10.0 6.12.0-55.38.1.el10_0
  • kernel-core RHEL 10.0 6.12.0-55.38.1.el10_0

red hat advisories RHSA-2025:23463RHSA-2025:23445RHSA-2025:22910RHSA-2025:22914RHSA-2025:22072RHSA-2025:22006

  • kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-rt_debug Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-source-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-rt Linux Micro 6.2 6.12.0-160000.7.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.7.1
  • kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.7.1
  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.7.1

suse advisories SUSE-SU-2025:4301-1SUSE-SU-2025:21080-1SUSE-SU-2025:21147-1SUSE-SU-2025:21180-1SUSE-SU-2026:20561-1SUSE-SU-2025:21052-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.7.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-kvmsmall openSUSE Leap 16.0 6.12.0-160000.7.1

opensuse advisories openSUSE-SU-2025:20091-1

  • kernel-abi-stablelists AlmaLinux 10 6.12.0-55.38.1.el10_0
  • kernel AlmaLinux 9 5.14.0-570.49.1.el9_6
  • rv AlmaLinux 9 5.14.0-570.49.1.el9_6
  • perf AlmaLinux 9 5.14.0-570.49.1.el9_6
  • rtla AlmaLinux 9 5.14.0-570.49.1.el9_6
  • libperf AlmaLinux 9 5.14.0-570.49.1.el9_6
  • kernel-rt AlmaLinux 9 5.14.0-570.49.1.el9_6
  • kernel-64k AlmaLinux 9 5.14.0-570.49.1.el9_6

almalinux advisories ALSA-2025:17396ALSA-2025:16880ALSA-2025:16919ALSA-2025:16920

  • kernel Rocky Linux 9 5.14.0-570.49.1.el9_6
  • kernel-rt Rocky Linux 8 4.18.0-553.77.1.rt7.418.el8_10
  • kernel Rocky Linux 8 4.18.0-553.77.1.el8_10

rocky linux advisories RLSA-2025:16880RLSA-2025:16920RLSA-2025:16919

  • kernel Azure Linux 3.0 6.6.104.2-1
  • kernel CBL-Mariner 2.0 5.15.200.1-1

azure linux advisories AZL-66788AZL-73893

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-38718 updated cvss 7.5

kernel: sctp: linearize cloned gso packets in sctp_rcv

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: workaround, no fix planned “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.100.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.100.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.100.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.100.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.100.1.el9_4
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21760
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.49.1.el9_6, perf 5.14.0-570.49.1.el9_6, rtla 5.14.0-570.49.1.el9_6, python3-perf 5.14.0-570.49.1.el9_6, kernel-devel-matched 5.14.0-570.49.1.el9_6, kernel-64k-devel-matched 5.14.0-570.49.1.el9_6, +7 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16880
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.38.1.el10_0, perf 6.12.0-55.38.1.el10_0, rtla 6.12.0-55.38.1.el10_0, python3-perf 6.12.0-55.38.1.el10_0, kernel-devel-matched 6.12.0-55.38.1.el10_0, kernel-64k-devel-matched 6.12.0-55.38.1.el10_0, +7 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:17396
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.153.1.el9_0, kernel-devel-matched 5.14.0-70.153.1.el9_0, kernel-debug-devel-matched 5.14.0-70.153.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.153.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.153.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.153.1.el9_0, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21091
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.144.1.el9_2, rtla 5.14.0-284.144.1.el9_2, kernel-devel-matched 5.14.0-284.144.1.el9_2, kernel-64k-devel-matched 5.14.0-284.144.1.el9_2, kernel-debug-devel-matched 5.14.0-284.144.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.144.1.el9_2, +5 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:19224
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.100.1.el9_4, perf 5.14.0-427.100.1.el9_4, rtla 5.14.0-427.100.1.el9_4, kernel-devel-matched 5.14.0-427.100.1.el9_4, kernel-64k-devel-matched 5.14.0-427.100.1.el9_4, kernel-debug-devel-matched 5.14.0-427.100.1.el9_4, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21760
show 30 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.77.1.el8_10, kernel 4.18.0-553.77.1.el8_10, bpftool 4.18.0-553.77.1.el8_10, kernel-core 4.18.0-553.77.1.el8_10, kernel-tools 4.18.0-553.77.1.el8_10, python3-perf 4.18.0-553.77.1.el8_10, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16919
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.49.1.el9_6, kernel-64k 5.14.0-570.49.1.el9_6, kernel-core 5.14.0-570.49.1.el9_6, kernel-tools 5.14.0-570.49.1.el9_6, kernel-modules 5.14.0-570.49.1.el9_6, kernel-64k-core 5.14.0-570.49.1.el9_6, +27 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16880
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.38.1.el10_0, kernel-64k 6.12.0-55.38.1.el10_0, kernel-core 6.12.0-55.38.1.el10_0, kernel-tools 6.12.0-55.38.1.el10_0, kernel-modules 6.12.0-55.38.1.el10_0, kernel-64k-core 6.12.0-55.38.1.el10_0, +27 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:17396
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.178.1.el8_2, kernel 4.18.0-193.178.1.el8_2, bpftool 4.18.0-193.178.1.el8_2, kernel-core 4.18.0-193.178.1.el8_2, kernel-tools 4.18.0-193.178.1.el8_2, python3-perf 4.18.0-193.178.1.el8_2, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:23445
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.182.1.el8_4, kernel 4.18.0-305.182.1.el8_4, bpftool 4.18.0-305.182.1.el8_4, kernel-core 4.18.0-305.182.1.el8_4, kernel-tools 4.18.0-305.182.1.el8_4, python3-perf 4.18.0-305.182.1.el8_4, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:23463
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:22006
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.120.1.el8_8, kernel 4.18.0-477.120.1.el8_8, bpftool 4.18.0-477.120.1.el8_8, kernel-core 4.18.0-477.120.1.el8_8, kernel-tools 4.18.0-477.120.1.el8_8, python3-perf 4.18.0-477.120.1.el8_8, +9 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:22072
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.153.1.el9_0, bpftool 5.14.0-70.153.1.el9_0, kernel-core 5.14.0-70.153.1.el9_0, kernel-tools 5.14.0-70.153.1.el9_0, python3-perf 5.14.0-70.153.1.el9_0, kernel-modules 5.14.0-70.153.1.el9_0, +14 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21091
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.144.1.el9_2, kernel 5.14.0-284.144.1.el9_2, kernel-64k 5.14.0-284.144.1.el9_2, kernel-core 5.14.0-284.144.1.el9_2, kernel-tools 5.14.0-284.144.1.el9_2, python3-perf 5.14.0-284.144.1.el9_2, +28 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:19224
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.100.1.el9_4, kernel 5.14.0-427.100.1.el9_4, kernel-64k 5.14.0-427.100.1.el9_4, kernel-core 5.14.0-427.100.1.el9_4, kernel-tools 5.14.0-427.100.1.el9_4, python3-perf 5.14.0-427.100.1.el9_4, +28 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21760
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.182.1.el8_4, kernel 4.18.0-305.182.1.el8_4, bpftool 4.18.0-305.182.1.el8_4, kernel-core 4.18.0-305.182.1.el8_4, kernel-tools 4.18.0-305.182.1.el8_4, python3-perf 4.18.0-305.182.1.el8_4, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:23463
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:22006
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.120.1.el8_8, kernel 4.18.0-477.120.1.el8_8, bpftool 4.18.0-477.120.1.el8_8, kernel-core 4.18.0-477.120.1.el8_8, kernel-tools 4.18.0-477.120.1.el8_8, python3-perf 4.18.0-477.120.1.el8_8, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:22072
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.49.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.49.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.49.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.49.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.49.1.el9_6
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16880
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.38.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.38.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.38.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.38.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.38.1.el10_0
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:17396
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.77.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.77.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.77.1.el8_10
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16919
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.143.1.rt56.1295.el7, kernel-rt-trace 3.10.0-1160.143.1.rt56.1295.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.143.1.rt56.1295.el7
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:22914
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-kvm 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-core 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-modules 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-debug-kvm 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-debug-core 4.18.0-553.77.1.rt7.418.el8_10, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16920
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-kvm 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-modules 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-kvm 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-core 5.14.0-70.153.1.rt21.225.el9_0, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21136
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.49.1.el9_6, kernel-rt-64k 5.14.0-570.49.1.el9_6, kernel-rt-core 5.14.0-570.49.1.el9_6, kernel-rt-modules 5.14.0-570.49.1.el9_6, kernel-rt-64k-core 5.14.0-570.49.1.el9_6, kernel-rt-debug-core 5.14.0-570.49.1.el9_6, +14 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16880
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.38.1.el10_0, kernel-rt-64k 6.12.0-55.38.1.el10_0, kernel-rt-core 6.12.0-55.38.1.el10_0, kernel-rt-modules 6.12.0-55.38.1.el10_0, kernel-rt-64k-core 6.12.0-55.38.1.el10_0, kernel-rt-debug-core 6.12.0-55.38.1.el10_0, +14 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:17396
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-modules 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-core 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-modules 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-modules-extra 5.14.0-70.153.1.rt21.225.el9_0, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21136
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-core 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-modules 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-debug-core 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-modules-core 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-debug-modules 5.14.0-284.144.1.rt14.429.el9_2, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:19223
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.100.1.el9_4, kernel-rt-core 5.14.0-427.100.1.el9_4, kernel-rt-modules 5.14.0-427.100.1.el9_4, kernel-rt-debug-core 5.14.0-427.100.1.el9_4, kernel-rt-modules-core 5.14.0-427.100.1.el9_4, kernel-rt-debug-modules 5.14.0-427.100.1.el9_4, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21760
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.49.1.el9_6, kernel-rt-kvm 5.14.0-570.49.1.el9_6, kernel-rt-core 5.14.0-570.49.1.el9_6, kernel-rt-modules 5.14.0-570.49.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.49.1.el9_6, kernel-rt-debug-core 5.14.0-570.49.1.el9_6, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16880
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.38.1.el10_0, kernel-rt-kvm 6.12.0-55.38.1.el10_0, kernel-rt-core 6.12.0-55.38.1.el10_0, kernel-rt-modules 6.12.0-55.38.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.38.1.el10_0, kernel-rt-debug-core 6.12.0-55.38.1.el10_0, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:17396
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-kvm 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-core 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-modules 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-debug-kvm 5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-debug-core 5.14.0-284.144.1.rt14.429.el9_2, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:19223
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.100.1.el9_4, kernel-rt-kvm 5.14.0-427.100.1.el9_4, kernel-rt-core 5.14.0-427.100.1.el9_4, kernel-rt-modules 5.14.0-427.100.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.100.1.el9_4, kernel-rt-debug-core 5.14.0-427.100.1.el9_4, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:21760
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-core 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-modules 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-debug-core 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-debug-modules 4.18.0-553.77.1.rt7.418.el8_10, kernel-rt-modules-extra 4.18.0-553.77.1.rt7.418.el8_10, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:16920
  • Red Hat Enterprise Linux Server (v. 7 ELS) perf 3.10.0-1160.143.1.el7, kernel 3.10.0-1160.143.1.el7, bpftool 3.10.0-1160.143.1.el7, python-perf 3.10.0-1160.143.1.el7, kernel-kdump 3.10.0-1160.143.1.el7, kernel-tools 3.10.0-1160.143.1.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debuginfo-common-ppc64 3.10.0-1160.143.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.143.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.143.1.el7
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:22910

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Weakness
  • CWE-908 Use of Uninitialized Resource
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.