CVE-2024-38574
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-38574
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-38574.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-38574
- Downstream
- Published
- 2024-06-19T14:15:17Z
- Modified
- 2025-08-09T20:01:28Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
libbpf: Prevent null-pointer dereference when prog to load has no BTF
In bpfobjecloadprog(), there's no guarantee that obj->btf is non-NULL when passing it to btffd(), and this function does not perform any check before dereferencing its argument (as bpfobjectbtf_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 btffd() in the fix instead of reverting to bpfobjectbtffd().
- References