Description
A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | kernel | kernel versions prior to 5.10-rc6 | — |
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 | 5.9.15-1 | — |
| Debian 13 | linux | 5.9.15-1 | — |
| Debian 12 | linux | 5.9.15-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +5 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.8 | 5.8.0-44.50~20.04.1 | USN-4751-1 |
| Ubuntu 20.04 LTS | linux-riscv-5.8 | 5.8.0-17.19~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +15 | 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 | 4.18.0-305.rt7.72.el8 | RHSA-2021:1739 |
| RHEL 8 | perf +26 | 4.18.0-305.el8 | RHSA-2021:1578 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-tools-libs-devel | 4.18.0-305.el8 | ALSA-2021:1578 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.68.1 | SUSE-SU-2025:1263-1, SUSE-SU-2022:1687-1 |
| SLES 15 SP3 | kernel-azure +2 | 5.3.18-150300.38.56.1 | SUSE-SU-2022:1676-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.68.1.150300.18.41.3 | SUSE-SU-2025:1263-1, SUSE-SU-2022:1687-1 |
| SLES 15 SP2 | kernel-azure +2 | 5.3.18-18.35.2 | SUSE-SU-2021:0347-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.49.2.9.21.2 | SUSE-SU-2021:0354-1 |
| SLES 15 SP2 | kernel-docs | 5.3.18-24.49.3 | SUSE-SU-2021:0354-1 |
| SLES 15 SP2 | kernel-syms +4 | 5.3.18-24.49.2 | SUSE-SU-2021:0354-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.66.1 | SUSE-SU-2021:0438-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.44.1 | SUSE-SU-2021:0348-1 |
| SLES 12 SP5 | kernel-docs | 4.12.14-122.60.2 | SUSE-SU-2021:0353-1 |
| SLES 12 SP5 | kernel-syms +3 | 4.12.14-122.60.1 | SUSE-SU-2021:0353-1 |
Show 34 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.68.1 | SUSE-SU-2021:0434-1 |
| SLES 12 SP3 | kernel-syms +2 | 4.4.180-94.138.1 | SUSE-SU-2021:0452-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_37 | 1-4.3.1 | SUSE-SU-2021:0452-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLES for SAP 15 SP1 | kernel-docs +4 | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.66.1 | SUSE-SU-2021:0438-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.44.1 | SUSE-SU-2021:0348-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.60.1 | SUSE-SU-2021:0353-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.68.1 | SUSE-SU-2021:0434-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.138.1 | SUSE-SU-2021:0452-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_37 | 1-4.3.1 | SUSE-SU-2021:0452-1 |
| SLE Real Time 15 SP3 | release-notes-sle_rt | 15.3.20220422-150300.3.3.2 | SUSE-SU-2022:1669-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.31.1 | SUSE-SU-2021:0433-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.68.1 | SUSE-SU-2025:1263-1, SUSE-SU-2022:1687-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.68.1.150300.18.41.3 | SUSE-SU-2025:1263-1, SUSE-SU-2022:1687-1 |
| SLE Micro 5.2 | kernel-rt | 5.3.18-150300.88.2 | SUSE-SU-2025:1194-1, SUSE-SU-2022:1669-1 |
| SLE Micro 5.2 | kernel-source-rt | 5.3.18-150300.205.1 | SUSE-SU-2025:1194-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.68.1 | SUSE-SU-2025:1263-1, SUSE-SU-2022:1687-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.68.1.150300.18.41.3 | SUSE-SU-2025:1263-1, SUSE-SU-2022:1687-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.88.2 | SUSE-SU-2025:1194-1, SUSE-SU-2022:1669-1 |
| SLE Micro 5.1 | kernel-source-rt | 5.3.18-150300.205.1 | SUSE-SU-2025:1194-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.68.1 | SUSE-SU-2025:1263-1, SUSE-SU-2022:1687-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_18 | 1-150300.7.5.1 | SUSE-SU-2022:1687-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_56 | 1-150300.7.3.1 | SUSE-SU-2025:1263-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.49.2 | SUSE-SU-2021:0354-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_10 | 1-5.3.2 | SUSE-SU-2021:0354-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_22 | 1-3.5.1 | SUSE-SU-2021:0532-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.66.1 | SUSE-SU-2021:0438-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_22 | 1-1.3.1 | SUSE-SU-2021:0438-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.60.1 | SUSE-SU-2021:0353-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_15 | 1-8.3.1 | SUSE-SU-2021:0353-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.68.1 | SUSE-SU-2021:0434-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_18 | 1-6.3.1 | SUSE-SU-2021:0434-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SLE HPC 15 SP1 | kernel-docs +4 | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.66.1 | SUSE-SU-2021:0438-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +2 | 5.3.18-150300.88.2 | SUSE-SU-2022:1669-1 |
| SUSE Real Time Module 15 SP3 | kernel-syms-rt | 5.3.18-150300.88.1 | SUSE-SU-2022:1669-1 |
| SUSE Real Time Module 15 SP3 | release-notes-sle_rt | 15.3.20220422-150300.3.3.2 | SUSE-SU-2022:1669-1 |
| SUSE Real Time Module 15 SP2 | kernel-rt +3 | 5.3.18-25.1 | SUSE-SU-2021:0427-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.68.1 | SUSE-SU-2021:0434-1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-syms +2 | 4.4.180-94.138.1 | SUSE-SU-2021:0452-1 |
| SUSE OpenStack Cloud Crowbar 8 | kgraft-patch-SLE12-SP3_Update_37 | 1-4.3.1 | SUSE-SU-2021:0452-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.68.1 | SUSE-SU-2021:0434-1 |
| SUSE OpenStack Cloud 8 | kernel-syms +2 | 4.4.180-94.138.1 | SUSE-SU-2021:0452-1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_37 | 1-4.3.1 | SUSE-SU-2021:0452-1 |
| SUSE Manager Server 4.0 | kernel-docs +5 | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SUSE Manager Retail Branch Server 4.0 | kernel-docs +4 | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SUSE Manager Proxy 4.0 | kernel-docs +4 | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SUSE HPE Helion OpenStack 8 | kernel-syms +2 | 4.4.180-94.138.1 | SUSE-SU-2021:0452-1 |
| SUSE HPE Helion OpenStack 8 | kgraft-patch-SLE12-SP3_Update_37 | 1-4.3.1 | SUSE-SU-2021:0452-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SUSE Enterprise Storage 6 | kernel-docs +4 | 4.12.14-197.83.1 | SUSE-SU-2021:0532-1 |
| SUSE Enterprise Storage 5 | kernel-syms +2 | 4.4.180-94.138.1 | SUSE-SU-2021:0452-1 |
| SUSE Enterprise Storage 5 | kgraft-patch-SLE12-SP3_Update_37 | 1-4.3.1 | SUSE-SU-2021:0452-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dtb-aarch64 +1 | 5.3.18-150300.59.68.1 | SUSE-SU-2022:1687-1 |
| openSUSE Leap 15.3 | dtb-aarch64 +11 | 5.3.18-150300.59.68.1 | SUSE-SU-2022:1687-1 |
| openSUSE Leap 15.3 | kernel-azure +2 | 5.3.18-150300.38.56.1 | SUSE-SU-2022:1676-1 |
| openSUSE Leap 15.3 | kernel-default-base | 5.3.18-150300.59.68.1.150300.18.41.3 | SUSE-SU-2022:1687-1 |
| openSUSE Leap 15.2 | kernel-docs +8 | 5.3.18-lp152.60.1 | openSUSE-SU-2021:0060-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-305.el8 | ELSA-2021-1578 |
Advisories 21
- ALSA-2021:1578 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:1739 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2021:1578 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-4751-1 linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- SUSE-SU-2022:1687-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0354-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:1669-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0532-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0434-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:1676-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0348-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0427-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1194-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0347-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0438-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0060-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0353-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0452-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2021:0433-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2025:1263-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 16, 2025
- ELSA-2021-1578 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021