Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
apparmor: fix memory leak in verify_header
The function sets *ns = NULL on every call, leaking the namespace
string allocated in previous iterations when multiple profiles are
unpacked. This also breaks namespace consistency checking since *ns
is always NULL when the comparison is made.
Remove the incorrect assignment. The caller (aa_unpack) initializes *ns to NULL once before the loop, which is sufficient.
Details
- Affected product:
- AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , Debian 10 ELS , Oracle Linux 7 ELS , TuxCare 9.6 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
- Affected packages:
- linux @ 4.19.0 (+11 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Debian 13 | Ready For Release | — |
| Ubuntu 16.04 AWS HWE ESM | Planned | — |
| Ubuntu 16.04 GCP ESM | Planned | — |
| Ubuntu 16.04 HWE ESM | Planned | — |
| Ubuntu 18.04 | Planned | — |
| Ubuntu 18.04 AWS | Planned | — |
| Ubuntu 18.04 Azure | Planned | — |
| Ubuntu 18.04 GCP | Planned | — |