# CVE-2024-38574: linux: In the Linux kernel, the following vulnerability has been resolved:  libbpf: Prevent null-pointer dereference when pr...

CVE-2024-38574 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-38574, released June 19, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-38574
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 19, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  libbpf: Prevent null-pointer dereference when prog to load has no BTF  In bpf_objec_load_prog(), there's no guarantee that obj->btf is non-NULL when passing it to btf__fd(), and this function does not perform any check before dereferencing its argument (as bpf_object__btf_fd() used to do). As a consequence, we get segmentation fault errors in bpftool (for example) when trying to load programs that come without BTF information.  v2: Keep btf__fd() in the fix instead of reverting to bpf_object__btf_fd().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.8.12-1 | [DEBIAN-CVE-2024-38574](https://patchblox.com/security/data/fix/linux/debian-cve-2024-38574.md) | Jun 19, 2024 |
| Linux | linux Debian 14 | 6.8.12-1 | [DEBIAN-CVE-2024-38574](https://patchblox.com/security/data/fix/linux/debian-cve-2024-38574.md) | Jun 19, 2024 |

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