A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the function find_prog_by_sec_insn of the file tools/lib/bpf/libbpf.c of the component BPF. The manipulation leads to null pointer dereference. It is recommended to apply a patch to fix this issue. The identifier VDB-211749 was assigned to this vulnerability.
Weakness
The product does not release or incorrectly releases a resource before it is made available for re-use.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 6.2 (excluding) |
| Dwarves-dfsg | Ubuntu | bionic | * |
| Dwarves-dfsg | Ubuntu | esm-apps/bionic | * |
| Dwarves-dfsg | Ubuntu | esm-apps/focal | * |
| Dwarves-dfsg | Ubuntu | focal | * |
| Dwarves-dfsg | Ubuntu | trusty | * |
| Dwarves-dfsg | Ubuntu | xenial | * |
| Libbpf | Ubuntu | devel | * |
| Libbpf | Ubuntu | esm-apps/focal | * |
| Libbpf | Ubuntu | focal | * |
| Libbpf | Ubuntu | jammy | * |
| Libbpf | Ubuntu | kinetic | * |
| Libbpf | Ubuntu | lunar | * |
| Libbpf | Ubuntu | mantic | * |
| Libbpf | Ubuntu | noble | * |
| Libbpf | Ubuntu | oracular | * |
| Libbpf | Ubuntu | plucky | * |
| Libbpf | Ubuntu | questing | * |
| Libbpf | Ubuntu | trusty | * |
| Libbpf | Ubuntu | xenial | * |
Potential Mitigations
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/125.html
- https://cwe.mitre.org/data/definitions/130.html
- https://cwe.mitre.org/data/definitions/131.html
- https://cwe.mitre.org/data/definitions/494.html
- https://cwe.mitre.org/data/definitions/495.html
- https://cwe.mitre.org/data/definitions/496.html
- https://cwe.mitre.org/data/definitions/666.html
References
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d382f95a9270dcf803539d6781d6bd67e3f5b2
- https://vuldb.com/?id.211749
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d382f95a9270dcf803539d6781d6bd67e3f5b2
- https://lists.debian.org/debian-lts-announce/2025/04/msg00033.html
- https://vuldb.com/?id.211749