Description
A race problem was found in fs/proc/task_mmu.c in the memory management sub-component in the Linux kernel. This issue may allow a local attacker with user privilege to cause a denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Linux | Linux Kernel prior to Kernel 5.7 RC14 | — |
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 | 5.15.15-1 | — |
| Debian 13 | linux | 5.15.15-1 | — |
| Debian 12 | linux | 5.15.15-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +25 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1008.11~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oem-5.14 | 5.14.0-1027.30 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +10 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux +12 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-477.10.1.rt7.274.el8_8 | RHSA-2023:2736 |
| RHEL 8 | perf +26 | 4.18.0-477.10.1.el8_8 | RHSA-2023:2951 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-477.10.1.rt7.274.el8_8 | ALSA-2023:2736 |
| AlmaLinux 8 | perf +23 | 4.18.0-477.10.1.el8_8 | ALSA-2023:2951 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.7.1 | SUSE-SU-2023:2871-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.3.1 | SUSE-SU-2024:2947-1, SUSE-SU-2023:2646-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.7.1.150500.6.2.5 | SUSE-SU-2023:2871-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.60.1 | SUSE-SU-2024:2929-1, SUSE-SU-2023:1897-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.43.1 | SUSE-SU-2023:1802-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2024:2929-1, SUSE-SU-2023:1897-1 |
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.118.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
Show 25 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.128.1.150400.24.62.1 | SUSE-SU-2024:2929-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.128.1 | SUSE-SU-2024:2929-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.118.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
| SLE Real Time 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SLE Real Time 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2024:2929-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2024:2929-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.4 | kernel-rt | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2024:2929-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2024:2929-1, SUSE-SU-2023:1897-1 |
| SLE Micro 5.3 | kernel-rt | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE Micro 5.2 | kernel-rt | 5.3.18-150300.124.1 | SUSE-SU-2023:1892-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.124.1 | SUSE-SU-2023:1892-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.7.1 | SUSE-SU-2023:2871-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_1 | 1-150500.11.5.1 | SUSE-SU-2023:2809-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_18 | 1-150500.11.3.1 | SUSE-SU-2024:2894-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_1 | 1-150500.11.7.1 | SUSE-SU-2023:2871-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2024:2929-1, SUSE-SU-2023:1897-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_6 | 1-150400.1.3.3 | SUSE-SU-2023:1992-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_11 | 1-150400.9.3.2 | SUSE-SU-2023:1897-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_29 | 1-150400.9.3.1 | SUSE-SU-2024:2929-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.118.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_31 +1 | 1-150300.7.3.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.148.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_35 +1 | 1-150200.5.3.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.128.1 | SUSE-SU-2024:2929-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.128.1.150400.24.62.1 | SUSE-SU-2024:2929-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.118.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2024:3499-1, SUSE-SU-2023:1800-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2024:2894-1, SUSE-SU-2023:2809-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +3 | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-150300.124.1 | SUSE-SU-2023:1892-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.128.1.150400.24.62.1 | SUSE-SU-2024:2929-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.128.1 | SUSE-SU-2024:2929-1 |
| SUSE Manager Server 4.2 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SUSE Manager Server 4.2 | kernel-source +3 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.128.1.150400.24.62.1 | SUSE-SU-2024:2929-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.128.1 | SUSE-SU-2024:2929-1 |
| SUSE Manager Proxy 4.2 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2023:1811-1 |
| SUSE Manager Proxy 4.2 | kernel-source +2 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1811-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.118.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.118.1.150300.18.68.1 | SUSE-SU-2024:3249-1, SUSE-SU-2023:1811-1 |
| SUSE Enterprise Storage 7 | kernel-default-base | 5.3.18-150200.24.148.1.150200.9.71.1 | SUSE-SU-2023:1800-1 |
| SUSE Enterprise Storage 7 | kernel-docs +5 | 5.3.18-150200.24.148.1 | SUSE-SU-2023:1800-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.7.1 | SUSE-SU-2023:2871-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.3.1 | SUSE-SU-2024:2947-1, SUSE-SU-2023:2646-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.7.1.150500.6.2.5 | SUSE-SU-2023:2871-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2024:2894-1, SUSE-SU-2023:2809-1 |
| openSUSE Leap 15.4 | dtb-aarch64 | 5.3.18-150300.59.118.1 | SUSE-SU-2023:1897-1, SUSE-SU-2023:1811-1 |
| openSUSE Leap 15.4 | kernel-64kb +9 | 5.14.21-150400.24.60.1 | SUSE-SU-2023:1897-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.43.1 | SUSE-SU-2023:1802-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2023:1897-1 |
| openSUSE Leap 15.4 | kernel-rt +3 | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | kernel-rt | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.60.1 | SUSE-SU-2023:1897-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.60.1.150400.24.24.3 | SUSE-SU-2023:1897-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.23.1 | SUSE-SU-2023:1992-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-477.10.1.el8_8 | ELSA-2023-2951 |
Advisories 21
- ALSA-2023:2951 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2736 Important: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:2951 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:2736 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- SUSE-SU-2024:2947-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2646-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1992-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3249-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1800-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2871-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3499-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1811-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2929-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2809-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1897-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2894-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2023:1892-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2023:1802-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-0064 Juniper Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 10, 2025
- WID-SEC-2023-0727 Linux Kernel: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Sep 30, 2024
- ELSA-2023-2951 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2023