Description
A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the 'rlim' variable and can be used to leak the contents. We recommend upgrading past version 6.1.8 or commit 739790605705ddcf18f21782b9c99ad7d53a8c11
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux Kernel | ≤ 6.1.8 | — |
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 | 6.1.8-1 | — |
| Debian 13 | linux | 6.1.8-1 | — |
| Debian 12 | linux | 6.1.8-1 | — |
| 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 | — |
| Ubuntu 22.04 LTS | linux-allwinner-5.19 | 5.19.0-1012.12~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1034.38 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1036.43 | — |
| 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 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1032.40 | — |
| Ubuntu 22.04 LTS | linux-gcp-5.19 | 5.19.0-1024.26~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1031.36 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1018.23 | — |
| 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 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1028.33 | — |
| 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-6.0 | 6.0.0-1021.21 | USN-6385-1 |
| Ubuntu 22.04 LTS | linux-oem-6.1 | 6.1.0-1008.8 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1033.39 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1027.29 | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-147.164 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1100.108 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1034.38~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1106.112 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1036.43~20.04.1 | — |
| 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 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1032.40~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1097.104 | — |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1031.36~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1067.71 | — |
| 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 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1047.52 | — |
| 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 | — |
| 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 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1033.39~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1083.94 | — |
| 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 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1154.167 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1100.108~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1163.178 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1106.112~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1063.68 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1148.164 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1103.112~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-147.164~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1047.52~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1138.143 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1117.128 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1099.108~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1083.94~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1130.138 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1148.158 | — |
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 | 4.4.0-1091.98 | — |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-243.277 | USN-6254-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1159.174 | USN-6254-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1154.167~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1163.178~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1148.164~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-209.220~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1122.132 | USN-6254-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1117.128~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux | 3.13.0-193.244 | USN-6341-1 |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1121.127 | USN-6254-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1163.178~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-243.277~14.04.1 | USN-6254-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.0.0-284.25.1.el9_2 | RHSA-2023:4377 |
| RHEL 9 | kernel-rt +14 | 5.14.0-284.25.1.rt14.310.el9_2 | RHSA-2023:4378 |
| RHEL 9 | perf +48 | 5.14.0-284.25.1.el9_2 | RHSA-2023:4377 |
| 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 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhev Hypervisor 4 | perf +2 | 4.18.0-372.91.1.el8_6 | RHSA-2024:0724 |
| RHEL 9.0 EUS | kernel-rt +12 | 5.14.0-70.70.1.rt21.141.el9_0 | RHSA-2023:4814 |
| RHEL 9.0 EUS | perf +29 | 5.14.0-70.70.1.el9_0 | RHSA-2023:4801 |
| RHEL 8.8 EUS | perf +26 | 4.18.0-477.43.1.el8_8 | RHSA-2024:0575 |
| RHEL 8.6 EUS | perf +26 | 4.18.0-372.91.1.el8_6 | RHSA-2024:0724 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bpftool | 7.0.0-284.25.1.el9_2 | ALSA-2023:4377 |
| AlmaLinux 9 | kernel-rt +13 | 5.14.0-284.25.1.rt14.310.el9_2 | ALSA-2023:4378 |
| AlmaLinux 9 | perf +45 | 5.14.0-284.25.1.el9_2 | ALSA-2023:4377 |
| AlmaLinux 8 | perf +24 | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | kernel-rt | 5.14.0-284.25.1.rt14.310.el9_2 | RLSA-2023:4378 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.15-28.43 | 1.0-0.amzn2023 | ALAS2023-2023-127 |
| Amazon Linux 2023 | perf +12 | 6.1.15-28.43.amzn2023 | ALAS2023-2023-127 |
| Amazon Linux 2 | kernel-livepatch-4.14.309-231.529 | 1.0-0.amzn2 | ALAS2-2023-1987 |
| Amazon Linux 2 | perf +8 | 4.14.309-231.529.amzn2 | ALAS2-2023-1987 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.111.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.0.0-284.25.1.0.1.el9_2 | ELSA-2023-4377 |
| Oracle Linux 9 | perf +25 | 5.14.0-284.25.1.0.1.el9_2 | ELSA-2023-4377 |
| Oracle Linux 8 | perf +19 | 4.18.0-513.5.1.el8_9 | ELSA-2023-7077 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.75.3.el7uek | ELSA-2023-12375 |
Advisories 30
- ALSA-2023:4378 Important: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4377 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · 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-6385-1 linux-oem-6.0 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6341-1 linux vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6254-1 linux, linux-aws, linux-kvm, linux-lts-xenial 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-6093-1 linux-bluefield 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-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
- RHSA-2023:7077 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0575 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2024:0724 Red Hat Security Advisory: kernel security and bug fix 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-2023:4801 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2023:4814 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2023:4378 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2023:4377 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 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
- ALAS2-2023-1987 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 8, 2026
- RLSA-2023:4378 Important: kernel-rt security and bug fix update Rocky Linux Security Advisories · Feb 5, 2026
- WID-SEC-2024-1086 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 19, 2025
- ALAS2023-2023-127 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 22, 2025
- WID-SEC-2023-1082 Linux Kernel: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Feb 7, 2024
- ELSA-2023-7077 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2023
- ELSA-2023-4377 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 4, 2023
- ELSA-2023-12375 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 7, 2023
References
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7
- https://github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html