Overview
About vulnerability
In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list – the list head is all zeroes, this results in a NULL pointer dereference.Details
- Affected product:
- AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 6 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 6 ELS , CloudLinux 7 ELS , Debian 10 ELS , Oracle Linux 6 ELS , Oracle Linux 7 ELS , RHEL 7 ELS , TuxCare 9.6 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
- Affected packages:
- kernel @ 3.10.0 (+19 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 8 | Will Not Fix | — |
| Debian 10 | Will Not Fix | — |
| Debian 10 cloud | Will Not Fix | — |
| Debian 11 | Released |
13 kernels
|
| Debian 11 cloud | Released |
1 kernel
|
| Oracle Linux 6 UEK 4 | Released |
85 kernels
|
| Oracle Linux 7 UEK 4 | Released |
115 kernels
|
| Proofpoint | Ready For Release | — |
| RHEL 8 | Will Not Fix | — |
| RHEL8 EUS 8.6 | Released |
8 kernels
|
| RHEL 9 | Will Not Fix | — |
| Rocky Linux 8 | Will Not Fix | — |
| Ubuntu 16.04 | Released |
2 kernels
|
| Ubuntu 16.04 AWS ESM | Will Not Fix | — |
| Ubuntu 16.04 AWS HWE ESM | Will Not Fix | — |
| Ubuntu 16.04 Azure ESM | Will Not Fix | — |
| Ubuntu 16.04 GCP ESM | Will Not Fix | — |
| Ubuntu 16.04 HWE ESM | Will Not Fix | — |
| Ubuntu 18.04 | Will Not Fix | — |
| Ubuntu 18.04 AWS | Will Not Fix | — |
| Ubuntu 18.04 AWS Focal | Will Not Fix | — |
| Ubuntu 18.04 Azure Focal | Will Not Fix | — |
| Ubuntu 18.04 HWE Focal | Will Not Fix | — |
| Ubuntu 20.04 | Will Not Fix | — |
| Ubuntu 20.04 AWS | Will Not Fix | — |
| Ubuntu 22.04 | Will Not Fix | — |
| Ubuntu 22.04 AWS | Will Not Fix | — |
| Ubuntu 22.04 Azure | Will Not Fix | — |