Vulnerability 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().
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.8, < 6.8.12 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0Patch
- https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fbPatch
- https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104Patch
- https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0Patch
- https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fbPatch
- https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104Patch
FAQ
What is CVE-2024-38574?
CVE-2024-38574 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2024-38574?
CVE-2024-38574 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-38574?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.