Description
nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace.
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 | 5.14.6-1 | — |
| Debian 13 | linux | 5.14.6-1 | — |
| Debian 12 | linux | 5.14.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | linux-aws-5.11 +1 | 5.11.0-1017.18~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure-5.11 | 5.11.0-1015.16~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | 5.11.0-1018.20~20.04.2 | — |
| Ubuntu 20.04 LTS | linux-oem-5.10 | 5.10.0-1050.52 | — |
| Ubuntu 20.04 LTS | linux-riscv +10 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.11 | 5.11.0-1018.19~20.04.2 | — |
| Ubuntu 18.04 LTS | linux-gcp +12 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.43.1 | SUSE-SU-2022:0198-1 |
| SLES 15 SP3 | kernel-azure +2 | 5.3.18-150300.38.37.1 | SUSE-SU-2022:0169-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.43.1.150300.18.27.1 | SUSE-SU-2022:0198-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.43.1 | SUSE-SU-2022:0198-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.43.1.150300.18.27.1 | SUSE-SU-2022:0198-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.71.1 | SUSE-SU-2022:0288-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.43.1 | SUSE-SU-2022:0198-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_12 | 1-150300.7.3.1 | SUSE-SU-2022:0198-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-150300.71.1 | SUSE-SU-2022:0288-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | dtb-aarch64 +11 | 5.3.18-150300.59.43.1 | openSUSE-SU-2022:0198-1 |
| openSUSE Leap 15.3 | kernel-azure +2 | 5.3.18-150300.38.37.1 | openSUSE-SU-2022:0169-1 |
| openSUSE Leap 15.3 | kernel-default-base | 5.3.18-150300.59.43.1.150300.18.27.1 | openSUSE-SU-2022:0198-1 |
Advisories 5
- SUSE-SU-2022:0169-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0169-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0198-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0288-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0198-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026