Description
drivers/net/ethernet/xilinx/ll_temac_main.c in the Linux kernel before 5.12.13 allows remote attackers to cause a denial of service (buffer overflow and lockup) by sending heavy network traffic for about ten minutes.
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 | 5.10.46-1 | — |
| Debian 13 | linux | 5.10.46-1 | — |
| Debian 12 | linux | 5.10.46-1 | — |
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 | 5.4.0-81.91 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1055.58 | — |
| Ubuntu 20.04 LTS | linux-aws-5.11 +1 | 5.11.0-1017.18~20.04.1 | USN-5070-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1056.58 | — |
| Ubuntu 20.04 LTS | linux-azure-5.11 | 5.11.0-1015.16~20.04.1 | USN-5070-1 |
| Ubuntu 20.04 LTS | linux-azure-5.8 | 5.8.0-1043.46~20.04.1 | USN-5120-1 |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1019.22 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1051.55 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | 5.11.0-1018.20~20.04.2 | — |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1051.54 | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1022.23 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.11 | 5.11.0-34.36~20.04.1 | USN-5070-1 |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1045.47 | — |
| Ubuntu 20.04 LTS | linux-oem-5.10 | 5.10.0-1038.40 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1053.57 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1042.46 | — |
| Ubuntu 20.04 LTS | linux-riscv +7 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.11 | 5.11.0-1018.19~20.04.2 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1055.58~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1056.58~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +12 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1051.55~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gke-5.4 | 5.4.0-1051.54~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | 5.4.0-1022.23~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-81.91~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1053.57~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1042.46~18.04.3 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 2 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-updates 20.04 LTS | linux-aws-fips | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1032.37 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-59.24.1 | SUSE-SU-2021:3205-1 |
| SLES 15 SP3 | kernel-azure | 5.3.18-38.22.2 | SUSE-SU-2021:3179-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-59.24.1.18.12.1 | SUSE-SU-2021:3205-1 |
| SLES 15 SP3 | kernel-syms-azure +1 | 5.3.18-38.22.1 | SUSE-SU-2021:3179-1 |
| SLES 15 SP2 | kernel-azure | 5.3.18-18.66.2 | SUSE-SU-2021:3178-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.83.2.9.38.3 | SUSE-SU-2021:3207-1 |
| SLES 15 SP2 | kernel-docs +3 | 5.3.18-24.83.2 | SUSE-SU-2021:3207-1 |
| SLES 15 SP2 | kernel-syms +1 | 5.3.18-24.83.1 | SUSE-SU-2021:3207-1 |
| SLES 15 SP2 | kernel-syms-azure +1 | 5.3.18-18.66.1 | SUSE-SU-2021:3178-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.1 | kernel-default | 5.3.18-59.24.1 | SUSE-SU-2021:3205-2 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-59.24.1.18.12.1 | SUSE-SU-2021:3205-2 |
| SLE Micro 5.0 | kernel-default | 5.3.18-24.83.2 | SUSE-SU-2021:3207-1 |
| SLE Micro 5.0 | kernel-default-base | 5.3.18-24.83.2.9.38.3 | SUSE-SU-2021:3207-1 |
| SLE Micro 5.0 | kernel-rt | 5.3.18-51.2 | SUSE-SU-2021:3177-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-59.24.1 | SUSE-SU-2021:3205-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_6 | 1-7.5.1 | SUSE-SU-2021:3205-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.83.2 | SUSE-SU-2021:3207-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_19 | 1-5.3.4 | SUSE-SU-2021:3207-1 |
| SUSE Real Time Module 15 SP2 | kernel-rt +1 | 5.3.18-51.2 | SUSE-SU-2021:3177-1 |
| SUSE Real Time Module 15 SP2 | kernel-syms-rt +1 | 5.3.18-51.1 | SUSE-SU-2021:3177-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | dtb-aarch64 +11 | 5.3.18-59.24.1 | openSUSE-SU-2021:3205-1 |
| openSUSE Leap 15.3 | kernel-azure | 5.3.18-38.22.2 | openSUSE-SU-2021:3179-1 |
| openSUSE Leap 15.3 | kernel-default-base | 5.3.18-59.24.1.18.12.1 | openSUSE-SU-2021:3205-1 |
| openSUSE Leap 15.3 | kernel-syms-azure +1 | 5.3.18-38.22.1 | openSUSE-SU-2021:3179-1 |
| openSUSE Leap 15.2 | kernel-debug +5 | 5.3.18-lp152.92.2 | openSUSE-SU-2021:1271-1 |
| openSUSE Leap 15.2 | kernel-default-base | 5.3.18-lp152.92.2.lp152.8.42.3 | openSUSE-SU-2021:1271-1 |
| openSUSE Leap 15.2 | kernel-docs +2 | 5.3.18-lp152.92.1 | openSUSE-SU-2021:1271-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.10.78.1-1 | — |
Advisories 11
- USN-5120-1 linux-azure-5.8 vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5070-1 linux, linux-aws, linux-aws-5.11, linux-azure, linux-azure-5.11, linux-gcp, linux-hwe-5.11, linux-kvm, linux-oracle, linux-oracle-5.11, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- SUSE-SU-2021:3179-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:3179-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3205-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:3205-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3177-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3207-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3178-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1271-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3205-2 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025