Description
A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may occur when a user starts a malicious networking service and someone connects to this service. This could allow a local user to starve resources, causing a denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | kernel | unknown | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.1.11-1 | — |
| Debian 13 | linux | 6.1.11-1 | — |
| Debian 12 | linux | 6.1.11-1 | — |
| Debian 10 | linux | 4.19.282-1 | DLA-3403-1 |
| Debian 10 | linux-5.10 | 5.10.178-3~deb10u1 | DLA-3404-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1015.17 | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-70.77 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1034.38 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1036.43 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-azure-5.19 | 5.19.0-1026.29~22.04.1 | USN-6079-1 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1036.43.1 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1032.40 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1031.36 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1018.23 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-hwe-5.19 | 5.19.0-42.43~22.04.1 | USN-6096-1 |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1028.31 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1028.33 | USN-6057-1 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-5.19 | 5.19.0-1024.25~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1023.23 | — |
| Ubuntu 22.04 LTS | linux-oem-5.17 | 5.17.0-1030.31 | USN-6031-1 |
| Ubuntu 22.04 LTS | linux-oem-6.0 | 6.0.0-1014.14 | USN-6032-1 |
| Ubuntu 22.04 LTS | linux-oem-6.1 | 6.1.0-1008.8 | USN-5978-1 |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1033.39 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1027.29 | USN-6025-1 |
| Ubuntu 22.04 LTS | linux-riscv +1 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-147.164 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1100.108 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1034.38~20.04.1 | USN-6025-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1106.112 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1036.43~20.04.1 | USN-6025-1 |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1062.68 | USN-6093-1 |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1103.112 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1032.40~20.04.1 | USN-6025-1 |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1097.104 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1031.36~20.04.1 | USN-6025-1 |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1067.71 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1018.23~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-70.77~20.04.1 | USN-6040-1, USN-6025-1 |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1047.52 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1030.35~20.04.1 | USN-6134-1 |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1017.18 | USN-6256-1 |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1089.95 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1014.14~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1099.108 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1033.39~20.04.1 | USN-6025-1 |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1083.94 | USN-6027-1 |
| Ubuntu 20.04 LTS | linux-riscv +23 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1031.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1024.28 | USN-6222-1 |
| Ubuntu 18.04 LTS | linux | 4.15.0-209.220 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1154.167 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1100.108~18.04.1 | USN-6027-1 |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1163.178 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1106.112~18.04.1 | USN-6027-1 |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1063.68 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1148.164 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1103.112~18.04.1 | USN-6027-1 |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-147.164~18.04.1 | USN-6027-1 |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1047.52~18.04.1 | USN-6027-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1138.143 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1117.128 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1099.108~18.04.1 | USN-6027-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1083.94~18.04.1 | USN-6027-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1130.138 | USN-6029-1 |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1148.158 | USN-6030-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1024.29 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1036.39 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1100.108+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1106.112+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1075.84 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1103.112+fips1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2093.99 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2072.78 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1109.120 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2056.61 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1088.95 | — |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-239.273 | USN-6014-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1155.170 | USN-6001-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1154.167~16.04.1 | USN-6029-1 |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1163.178~16.04.1 | USN-6029-1 |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1148.164~16.04.1 | USN-6029-1 |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-209.220~16.04.1 | USN-6029-1 |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1118.128 | USN-6014-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1117.128~16.04.1 | USN-6029-1 |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1117.123 | USN-6013-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1163.178~14.04.1 | USN-6029-1 |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-239.273~14.04.1 | USN-6014-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.2.0-362.8.1.el9_3 | RHSA-2023:6583 |
| RHEL 9 | rv +64 | 5.14.0-362.8.1.el9_3 | RHSA-2023:6583 |
| RHEL 8 | kernel-rt +12 | 4.18.0-513.5.1.rt7.307.el8_9 | RHSA-2023:6901 |
| RHEL 8 | perf +26 | 4.18.0-513.5.1.el8_9 | RHSA-2023:7077 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhev Hypervisor 4 | perf +2 | 4.18.0-372.93.1.el8_6 | RHSA-2024:0930 |
| RHEL 9.2 EUS | bpftool | 7.0.0-284.52.1.el9_2 | RHSA-2024:0723 |
| RHEL 9.2 EUS | kernel-rt +14 | 5.14.0-284.52.1.rt14.337.el9_2 | RHSA-2024:0725 |
| RHEL 9.2 EUS | perf +48 | 5.14.0-284.52.1.el9_2 | RHSA-2024:0723 |
| RHEL 8.6 EUS | perf +26 | 4.18.0-372.93.1.el8_6 | RHSA-2024:0930 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | perf +24 | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.261.1 | SUSE-SU-2025:01983-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.261.1 | SUSE-SU-2025:01983-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_69 | 1-8.3.1 | SUSE-SU-2025:01983-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.2.0-362.8.1.el9_3 | ELSA-2023-6583 |
| Oracle Linux 9 | rv +25 | 5.14.0-362.8.1.el9_3 | ELSA-2023-6583 |
| Oracle Linux 8 | perf +19 | 4.18.0-513.5.1.el8_9 | ELSA-2023-7077 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.73.2.el7uek | ELSA-2023-12232 |
Advisories 37
- USN-6031-1 linux-oem-5.17 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- ALSA-2023:7077 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- USN-6256-1 linux-iot vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6222-1 linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6134-1 linux-intel-iotg-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6014-1 linux, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6093-1 linux-bluefield vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6032-1 linux-oem-6.0 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6079-1 linux, linux-aws, linux-azure, linux-azure-5.19, linux-kvm, linux-lowlatency, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6096-1 linux-gcp, linux-hwe-5.19 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6030-1 linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6013-1 linux-aws vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6001-1 linux-aws vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5978-1 linux-oem-6.1 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6025-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- USN-6029-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- USN-6057-1 linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- USN-6040-1 linux-hwe-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- USN-6027-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- RHSA-2023:7077 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:6583 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0930 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2023:6901 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:0725 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:0723 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- DLA-3404-1 linux-5.10 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3403-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2025:01983-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1086 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 19, 2025
- WID-SEC-2023-0684 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 31, 2025
- ICSA-25-044-09 Siemens SCALANCE W700 IEEE 802.11ax CISA ICS & IT advisories · May 6, 2025
- NCSC-2025-0061 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Feb 14, 2025
- NCSC-2025-0051 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Feb 11, 2025
- SSA-769027 SSA-769027: Multiple Vulnerabilities fixed in SCALANCE W700 IEEE 802.11ax devices before V3.0.0 Siemens ProductCERT · Feb 11, 2025
- ELSA-2023-7077 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2023
- ELSA-2023-6583 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 12, 2023
- ELSA-2023-12232 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 4, 2023
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2173430
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=458e279f861d3f61796894cd158b780765a1569f
- https://www.openwall.com/lists/oss-security/2023/01/23/1
- [debian-lts-announce] 20230502 [SECURITY] [DLA 3404-1] linux-5.10 security update mailing-list
- [debian-lts-announce] 20230503 [SECURITY] [DLA 3403-1] linux security update mailing-list
- [oss-security] 20231105 Re: Linux Kernel: sctp: KASLR leak in inet_diag_msg_sctpasoc_fill() mailing-list